Table type and embedded type dual-purpose heat dissipation air duct structure

Abstract

The utility model discloses a table type and embedded type dual-purpose heat dissipation air duct structure which comprises a box body, a furnace chamber is arranged in the box body, an inner cavity is formed between the outer wall of the furnace chamber and the inner wall of the box body, a first air outlet and a first air inlet are formed in the upper side and the rear side of the box body respectively, and a furnace chamber air outlet is formed in the furnace chamber; the heat dissipation air duct structure is arranged on the inner cavity and comprises a first heat dissipation air duct and a first heat dissipation fan arranged on one side of the first heat dissipation air duct, and the other side, away from the first heat dissipation fan, of the first heat dissipation air duct communicates with the first exhaust outlet; the first air inlet and the furnace chamber exhaust port are communicated with the first heat dissipation air duct through a first heat dissipation fan; according to the utility model, the normal heat removal and exhaust of the product can be ensured, and the temperature field temperature meeting the safety performance requirement is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking devices, and particularly relates to a heat dissipation air duct structure that can be used for both desktop and embedded types. Background Art

[0002] In the kitchen appliance manufacturing industry, various types of electronic component products are basically installed inside kitchen appliances such as desktop or embedded microwave steam convection ovens, steam ovens, air fryer ovens, microwave ovens, air fryers, gas ovens, etc. Such as electric heating tubes, PCBA boards, motors, electronic switches, and various types of control chips. These electronic component products themselves also have different requirements for the operating environment temperature. Therefore, when designing and manufacturing various kitchen appliances, ensuring that the temperature field inside them is at a relatively low level and enabling various electronic component products to operate safely and compliantly within an appropriate temperature field is a key consideration factor. For this reason, there is an urgent need in the market to design a reasonable and effective internal air duct structure for products to achieve a rapid cooling effect inside the products. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and provide a heat dissipation air duct structure that can be used for both desktop and embedded types, which can ensure the normal heat dissipation and exhaust of the product and maintain a temperature field that meets the safety regulations performance requirements.

[0004] To achieve the above purpose, in the first aspect, the utility model provides a heat dissipation air duct structure that can be used for both desktop and embedded types, including:

[0005] A box body, a furnace cavity is arranged inside the box body, an inner cavity is formed between the outer wall of the furnace cavity and the inner wall of the box body, a first air outlet and a first air inlet are respectively arranged on the upper side and the rear side of the box body, and a furnace cavity exhaust port is opened on the furnace cavity;

[0006] A heat dissipation air duct structure arranged on the inner cavity, the heat dissipation air duct structure includes a first heat dissipation air duct and a first heat dissipation fan arranged on one side of the first heat dissipation air duct, the other side of the first heat dissipation air duct away from the first heat dissipation fan is communicated with the first air outlet, and both the first air inlet and the furnace cavity exhaust port are communicated with the first heat dissipation air duct through the first heat dissipation fan.

[0007] Further, the heat dissipation air duct structure further includes a second heat dissipation air duct and a second heat dissipation fan, the second heat dissipation air duct is placed behind the furnace cavity, the second heat dissipation fan is arranged on the first air inlet and communicated with the second heat dissipation air duct, and the other end of the second heat dissipation air duct is communicated with the first heat dissipation air duct through the first heat dissipation fan. The second heat dissipation air duct can dissipate heat from the rear of the furnace cavity and improve the overall heat dissipation effect.

[0008] Further, the heat dissipation air duct structure further includes a third heat dissipation air duct communicating with the second heat dissipation air duct. The third heat dissipation air duct is disposed below the furnace cavity, and a second air outlet communicating with the third heat dissipation air duct is provided on the lower side of the box body. In this way, the heat dissipation effect on the lower side of the furnace cavity can be improved.

[0009] Further, the heat dissipation air duct structure further includes a fourth heat dissipation air duct. The fourth heat dissipation air duct is disposed between the first heat dissipation air duct and the furnace cavity. A second air inlet is provided on the box body, and the second air inlet, the furnace cavity exhaust port, and the first heat dissipation fan are all communicated with the fourth heat dissipation air duct.

[0010] Further, a furnace door for opening and closing the furnace cavity is provided on the box body. A fifth heat dissipation air duct is provided in the furnace door, and a third air inlet, a fourth air inlet, and a third air outlet communicating with the fifth heat dissipation air duct are provided on the furnace door. The heat dissipation of the furnace door is increased, and thus the heat dissipation operation on the front side of the furnace cavity is realized.

[0011] Further, the third air outlet is provided on the upper side of the furnace door, and the third air outlet is adjacent to and faces the second air inlet. In this way, when the first heat dissipation fan operates, air can be sucked through the second air inlet to realize air flow, and thus the air flow inside the fifth heat dissipation air duct is driven, improving the heat dissipation effect.

[0012] Further, the first heat dissipation air duct gradually becomes smaller from the end where the first heat dissipation fan is installed to the first air outlet, forming an air duct with a trumpet-shaped cross section. With the gradual contraction of the first heat dissipation air duct, the air flow speed will increase, which helps to quickly take away heat during the heat dissipation of the device and improve the heat dissipation efficiency.

[0013] Further, the first heat dissipation air duct and the fourth heat dissipation air duct are spaced apart by a duct assembly to form independent air ducts.

[0014] Further, a fan fixing frame is installed at the first air inlet, and the first heat dissipation fan is fixed on the fan fixing frame.

[0015] Further, a heat preservation and heat insulation device for wrapping the furnace cavity is provided on the outer periphery of the furnace cavity.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The utility model is provided with a heat dissipation air duct structure design around the outer periphery of the furnace cavity on the inner cavity. Specifically, the second heat dissipation air duct dissipates heat from the rear side, the third heat dissipation air duct dissipates heat from the lower side of the furnace cavity, the fourth heat dissipation air duct dissipates heat from the upper side of the furnace cavity, and the fifth heat dissipation air duct dissipates heat from the front side of the furnace cavity. Finally, through the operation of the first heat dissipation fan and the second heat dissipation fan, the air circulation inside each heat dissipation air duct is realized, which can ensure the normal heat dissipation and exhaust of the product and maintain the temperature field temperature meeting the safety regulation performance requirements. Moreover, a heat preservation and insulation device is also arranged around the furnace cavity, which can keep the heat generated during the operation of the product around the furnace cavity, so that the heat is quickly dissipated and isolated inside the inner heat preservation and insulation device, without affecting the temperature field temperature of other components and electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of a heat dissipation air duct structure for both desktop and embedded use provided by the present utility model;

[0020] Figure 2 is Figure 1 An enlarged view of part A;

[0021] Figure 3 It is a sectional view of a heat dissipation air duct structure for both desktop and embedded use provided by the present utility model;

[0022] Figure 4 is Figure 3 An enlarged view of part B;

[0023] Figure 5 It is a schematic diagram of the furnace door structure of the present utility model;

[0024] Figure 6 It is a schematic diagram of the air duct direction of the present utility model.

[0025] In the figure, it includes:

[0026] 1. Cabinet; 11. Oven cavity; 111. Oven cavity exhaust port; 12. Oven door; 13. Inner cavity body; 14. Air duct assembly; 2. First cooling fan; 21. First cooling fan blade; 3. Second cooling fan; 31. Second cooling fan blade; 4. First cooling air duct; 41. First air outlet; 5. Second cooling air duct; 51. First air inlet; 52. Fan fixing bracket; 6. Third cooling air duct; 61. Second air outlet; 7. Fourth cooling air duct; 71. Second air inlet; 72. First bending part; 8. Fifth cooling air duct; 81. Third air inlet; 82. Third air outlet; 83. Fourth air inlet; 84. Second bending part; 9. Air passage; 10. Thermal insulation device. Detailed implementation mode

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are one embodiment of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as described in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0030] Embodiment 1 of the present utility model provides a heat dissipation air duct structure for both desktop and embedded use, including a cabinet 1, an oven cavity 11 is provided in the cabinet 1, and an oven door 12 for opening and closing the oven cavity 11. An inner cavity body 13 is formed between the outer wall of the oven cavity 11 and the inner wall of the cabinet 1. A first air inlet 51 and a first air outlet 41 are respectively provided on the rear side and the upper side of the cabinet 1, and an oven cavity exhaust port 111 is opened on the oven cavity 11;

[0031] The heat dissipation duct structure is arranged on the inner cavity body 13. In this embodiment, a total of two groups of heat dissipation fans and five groups of air ducts are provided for the heat dissipation duct structure, namely the first heat dissipation fan 2, the second heat dissipation fan 3, the first heat dissipation duct 4, the second heat dissipation duct 5, the third heat dissipation duct 6, the fourth heat dissipation duct 7, and the fifth heat dissipation duct 8. The specific settings are as follows: The above-mentioned first heat dissipation duct 4 and fourth heat dissipation duct 7 are both arranged above the furnace cavity 11. The fourth heat dissipation duct 7 is arranged between the first heat dissipation duct 4 and the furnace cavity 11. And the first heat dissipation duct 4 and the fourth heat dissipation duct 7 are separated by a duct assembly 14 to form independent air ducts. A first heat dissipation fan 2 is arranged on one side of the first heat dissipation duct 4. The other side of the first heat dissipation duct 4 away from the first heat dissipation fan 2 is communicated with the first air outlet 41. In order to increase the air outlet efficiency of the first heat dissipation duct 4, the first heat dissipation duct 4 of this embodiment gradually becomes smaller from the end where the first heat dissipation fan 2 is installed to the first air outlet 41 to form an air duct with a horn-shaped cross-section. With the gradual contraction of the first heat dissipation duct 4, the air flow velocity will increase, which helps to quickly take away heat during equipment heat dissipation and improve the heat dissipation efficiency; A second air inlet 71 is provided on the box body 1. The second air inlet 71, the furnace cavity exhaust port 111, and the first heat dissipation fan 2 are all communicated with the fourth heat dissipation duct 7;

[0032] Furthermore, the fifth heat dissipation duct 8 is arranged on the furnace door 12. A third air inlet 81 and a third air outlet 82 communicated with the fifth heat dissipation duct 8 are provided on the furnace door 12. As shown in the figure, three groups of third air inlets 81 are movably arranged on the upper flank of the furnace door 12. In order to increase the air intake of the furnace door 12, a fourth air inlet 83 communicated with the fifth heat dissipation duct 8 is further provided at the bottom of the furnace door 12. In particular, the third air outlet 82 is arranged on the upper side of the furnace door 12. The third air outlet 82 is adjacent to and faces the second air inlet 71. In order to ensure that the air flow of the third air outlet 82 can smoothly enter the second air inlet 71, an inwardly folded first bending portion 72 and a second bending portion 84 are formed on the outer sides of the second air inlet 71 and the third air outlet 82, so that a common air passage 9 is formed between the second air inlet 71 and the third air outlet 82.

[0033] The second heat dissipation duct 5 is placed behind the furnace cavity 11. The second heat dissipation fan 3 is arranged on the first air inlet 51 and communicated with the second heat dissipation duct 5. The second heat dissipation fan 3 of this embodiment can be a convection fan, such as Figure 1As shown in the figure, the first air inlet 51 is arranged in the middle of the second heat dissipation air duct 5. A fan fixing frame 52 is installed at the first air inlet 51, and the first heat dissipation fan 2 is fixedly arranged on the fan fixing frame 52. The second heat dissipation fan blades 31 of the second heat dissipation fan 3 extend to the second heat dissipation air duct 5. When the second heat dissipation fan 3 is started, air is sucked from the first air inlet 51 into the second heat dissipation air duct 5. The second heat dissipation fan blades 31 of the second heat dissipation fan 3 rotate to drive the incoming air, so that the air flow in the second heat dissipation air duct 5 flows from bottom to top. The other end of the second heat dissipation air duct 5 is communicated with the first heat dissipation air duct 4 through the first heat dissipation fan 2. In this embodiment, in order to increase the heat dissipation of the lower side of the furnace cavity 11, a third heat dissipation air duct 6 is arranged below the furnace cavity 11 and communicated with the second heat dissipation air duct 5. A second air outlet 61 communicated with the third heat dissipation air duct 6 is arranged on the lower side of the box body 1, so that the heat dissipation effect of the lower side of the furnace cavity 11 can be improved;

[0034] In order to, a heat preservation and insulation device 10 wrapping the furnace cavity 11 is arranged on the outer periphery of the furnace cavity 11. The heat preservation and insulation device 10 is made of high-temperature resistant heat preservation materials, which can keep the heat generated inside the furnace cavity 11 during the operation of the product around the furnace cavity 11 without rapid loss and isolate it in the heat preservation and insulation device 10, without affecting the temperature field temperature of other components and electronic components.

[0035] Brief description of the working principle of the present utility model: The present utility model can be applied to kitchen electric appliances such as tabletop or built-in microwave steam convection ovens, steam ovens, air fry ovens, microwave ovens, air fryers, gas ovens, etc.; a heat preservation and insulation device 10 is provided in the inner cavity 13, and the heat preservation and insulation device 10 includes a furnace cavity 11, which can keep the heat generated during the operation of the product around the furnace cavity 11, so that the heat is quickly dissipated and isolated within the inner heat preservation and insulation device 10, without affecting the temperature fields of other components and electronic components; when the second cooling fan 3 operates and drives the second cooling fan blade 31 of the second cooling fan 3 to rotate, the external air of the product is sucked into the product from the first air inlet 51 and realizes upward and downward air transmission through the rotation of the second cooling fan blade 31. The air will move upward and downward along the second cooling air duct 5 and will adsorb the temperature at the rear side of the furnace cavity 11. The air moving downward will enter the third cooling air duct 6, and will continue to exchange heat with the lower side of the furnace cavity 11 in the third cooling air duct 6, and finally be discharged to the outside of the product through the second air outlet 61, that is, the bottom discharge cooling effect is achieved; the air flow moving upward in the second cooling air duct 5 will reach above the first cooling fan 2. After the first cooling fan 2 operates and drives the first cooling fan blade 21 of the first cooling fan 2 to rotate, the first cooling fan blade 21 forms a suction force to suck the air flowing in from the second cooling air duct 5 and the internal heat generated around the top of the cabinet 1 into the first cooling air duct 4, and discharges it to the outside of the product through the first air outlet 41, that is, the top discharge cooling effect is achieved; at the same time, the heat and water vapor generated during the cooking process in the furnace cavity 11 are discharged into the fourth cooling air duct 7 through the furnace cavity exhaust port 111. At the same time, a first air inlet 51 is provided at the front end of the cabinet 1. The external air of the product enters the fourth cooling air duct 7 through the first air inlet 51, and then the first cooling fan 2 discharges the heat, water vapor, air, etc. in the fourth cooling air duct 7 into the first cooling air duct 4, and then is discharged to the outside of the product through the first air outlet 41 by the rotation and pushing of the first cooling fan blade 21 of the first cooling fan 2 together with the air flowing in from the second cooling air duct 5, so as to achieve the effect of discharging heat and dehumidifying and exhausting steam inside the furnace cavity 11.

[0036] A fourth air inlet 83 is provided at the bottom of the furnace door 12. At the same time, a third air inlet 81 is provided on each of the left and right sides of the furnace door 12 assembly. The provided third air inlet 81 and fourth air inlet 83 communicate and penetrate the entire furnace door 12, so that the furnace door 12 of the product can be connected with the external air and natural convection can be realized to achieve the natural cooling effect of the furnace door 12.

[0037] Meanwhile, a third row of air vents 82 is provided at the top of the furnace door 12. After the first cooling fan 2 operates and drives the first cooling fan blades 21 of the first cooling fan 2 to rotate, a suction force is formed at the bottom of the first cooling fan blades 21. While absorbing heat and air in the Desai cooling air duct to form air flow, a suction force is also formed at the first air inlet 51 to suck the air from the third row of air vents 82 and merge it into the first cooling air duct 4 together, and then discharge it.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any changes, modifications, substitutions, combinations, and simplifications made within the spirit and principle of the present invention shall be equivalent replacement methods and shall be included in the protection scope of the present invention.

Claims

1. A heat dissipation air duct structure that can be used for both desktop and embedded applications, characterized in that, Comprising: A box body (1), a furnace cavity (11) is arranged inside the box body (1), an inner cavity body (13) is formed between the outer wall of the furnace cavity (11) and the inner wall of the box body (1), a first air outlet (41) and a first air inlet (51) are respectively arranged on the upper side and the rear side of the box body (1), and a furnace cavity exhaust port (111) is formed on the furnace cavity (11); A heat dissipation air duct structure arranged on the inner cavity body (13), the heat dissipation air duct structure includes a first heat dissipation air duct (4) and a first heat dissipation fan (2) arranged on one side of the first heat dissipation air duct (4), the other side of the first heat dissipation air duct (4) far away from the first heat dissipation fan (2) is communicated with the first air outlet (41), and both the first air inlet (51) and the furnace cavity exhaust port (111) are communicated with the first heat dissipation air duct (4) through the first heat dissipation fan (2).

2. The heat dissipation air duct structure for both desktop and embedded use according to claim 1, wherein, The heat dissipation air duct structure further includes a second heat dissipation air duct (5) and a second heat dissipation fan (3), the second heat dissipation air duct (5) is placed behind the furnace cavity (11), the second heat dissipation fan (3) is arranged on the first air inlet (51) and communicated with the second heat dissipation air duct (5), and the other end of the second heat dissipation air duct (5) is communicated with the first heat dissipation air duct (4) through the first heat dissipation fan (2).

3. The heat dissipation air duct structure for both desktop and embedded use according to claim 2, wherein The heat dissipation air duct structure further includes a third heat dissipation air duct (6) communicated with the second heat dissipation air duct (5), the third heat dissipation air duct (6) is arranged below the furnace cavity (11), and a second air outlet (61) communicated with the third heat dissipation air duct (6) is arranged on the lower side of the box body (1).

4. The heat dissipation duct structure for both desktop and embedded use according to claim 1, wherein, The heat dissipation air duct structure further includes a fourth heat dissipation air duct (7), the fourth heat dissipation air duct (7) is arranged between the first heat dissipation air duct (4) and the furnace cavity (11), a second air inlet (71) is formed on the box body (1), and the second air inlet (71), the furnace cavity exhaust port (111) and the first heat dissipation fan (2) are all communicated with the fourth heat dissipation air duct (7).

5. The heat dissipation air duct structure for both desktop and embedded use according to claim 4, wherein, A furnace door (12) for opening and closing the furnace cavity (11) is arranged on the box body (1), a fifth heat dissipation air duct (8) is arranged inside the furnace door (12), and a third air inlet (81), a fourth air inlet (83) and a third air outlet (82) communicated with the fifth heat dissipation air duct (8) are formed on the furnace door (12).

6. The heat dissipation air duct structure for both desktop and embedded use according to claim 5, wherein, The third air inlet (81) and the fourth air inlet (83) are respectively arranged on the front side and the lower side of the furnace door (12), the third air outlet (82) is arranged on the upper side of the furnace door (12), and the third air outlet (82) is adjacent to and faces the second air inlet (71).

7. A heat dissipation air duct structure for both desktop and embedded use according to claim 1, characterized in that The first heat dissipation air duct (4) gradually becomes smaller from the end where the first heat dissipation fan (2) is arranged to the first air outlet (41) to form a duct with a trumpet-shaped cross section.

8. A heat dissipation air duct structure for both desktop and embedded use according to claim 1, characterized in that, The first heat dissipation air duct (4) and the fourth heat dissipation air duct (7) are spaced apart by a duct assembly (14) to form independent air ducts.

9. A heat dissipation air duct structure for both desktop and embedded use according to claim 1, characterized in that, A fan fixing frame (52) is installed at the first air inlet (51), and the first heat dissipation fan (2) is fixed on the fan fixing frame (52).

10. A heat dissipation air duct structure for both desktop and embedded use according to claim 1, characterized in that, A heat insulation device (10) that wraps the furnace chamber (11) is provided on the outer periphery of the furnace chamber (11).

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