An oven

Abstract

This invention discloses an oven, belonging to the field of kitchen appliance technology, including a door air inlet, an air outlet, a door air duct, a main air duct, and a guide plate. The door air inlet is located at the bottom of the oven door; the air outlet is located at the front of the bottom of the oven; one end of the door air duct connects to the door air inlet, and the other end extends upward along the oven door; one end of the main air duct connects to the top of the door air duct, and the other end passes sequentially through the circuit board on the top of the oven, the back of the oven, and the bottom of the oven, connecting to the air outlet; the guide plate is disposed between the door air inlet and the air outlet. Because the air outlet is located at the front of the bottom of the oven, the airflow will not blow into the cabinet where the oven is installed, preventing the cabinet from becoming hot and humid, and the airflow will not blow directly onto the operator's face, preventing hot air from harming the operator. The guide plate separates the air inlet and outlet, preventing hot air from the outlet from being drawn into the door air inlet, ensuring a better cooling effect.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and more particularly to an oven. Background Technology

[0002] Ovens are becoming increasingly common. Because ovens generate high temperatures during use, they are generally equipped with a cooling system, and most use air cooling.

[0003] In existing technology, air ducts are formed in the oven door and shell. Air entering from the air inlet passes through the door, circuit board, convection fan and other components, carrying away heat.

[0004] Most existing ovens have exhaust vents at the top front, and the hot air emitted can easily injure the operator. Furthermore, the close proximity of the exhaust vent and air inlet causes the hot air to be drawn back in, resulting in higher temperatures entering the cooling duct and reducing cooling efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an oven that solves the technical problems in the prior art where hot air discharged from the exhaust vent can easily injure the operator and can be easily sucked back in through the air inlet.

[0006] Based on the above concept, the technical solution adopted by this invention is as follows:

[0007] An oven, comprising:

[0008] The air inlet is located at the bottom of the oven door.

[0009] The air vent is located at the front of the bottom of the oven;

[0010] The door air duct connects to the door air inlet at one end and extends upward along the oven door at the other end.

[0011] The main air duct connects to the top of the door air duct at one end and passes sequentially through the circuit board on the top of the oven, the back of the oven, and the bottom of the oven at the other end, and connects to the air outlet.

[0012] An air guide plate is disposed between the air inlet and the air outlet of the door.

[0013] The air guide plate extends downward at an angle.

[0014] The air guide plate is located on the bottom side of the air inlet of the door.

[0015] The air guide plate includes a first air guide section, a connecting section and a first mounting section connected in sequence. The first mounting section is connected to the oven door, and the first air guide section extends downward at an angle.

[0016] The air guide plate is equipped with reinforcing ribs.

[0017] The air guide plate is located on the front side of the air outlet.

[0018] The air guide plate includes a second mounting part, a second air guide part, and an extension part connected in sequence. The second mounting part is connected to the oven shell, the second air guide part extends downward at an angle, and the extension part extends horizontally.

[0019] The system includes two air guide plates, namely a first air guide plate and a second air guide plate. The first air guide plate is located on the bottom side of the air inlet of the door, and the second air guide plate is located on the front side of the air outlet.

[0020] It also includes a top air inlet, which is located at the front end of the top of the oven and is connected to the main air duct.

[0021] This also includes:

[0022] The side air intake is located at the bottom of the side of the oven.

[0023] The side air duct is connected at one end to the side air inlet and at the other end to the top of the oven and connected to the main air duct. The connection between the side air duct and the main air duct is located downstream of the circuit board.

[0024] The beneficial effects of this invention are:

[0025] The oven proposed in this invention allows outside air to enter through the door air inlet, flow upwards through the door air duct, enter the main air duct, and flow along the top, back, and bottom of the oven before exiting through the air outlet. Because the air outlet is located at the front of the bottom of the oven, the airflow will not blow into the cabinet where the oven is installed, preventing the cabinet from becoming hot and humid. The airflow will also not blow directly onto the operator's face, preventing injury from hot air. Since a guide plate is positioned between the door air inlet and outlet to separate the incoming and outgoing air, hot air exiting the outlet will not be drawn into the door air inlet, ensuring a better cooling effect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the oven provided in Embodiment 1 of the present invention;

[0027] Figure 2 yes Figure 1 A magnified view of point A;

[0028] Figure 3 This is a schematic diagram of the air guide plate provided in Embodiment 1 of the present invention;

[0029] Figure 4 This is a schematic diagram of the oven provided in Embodiment 2 of the present invention;

[0030] Figure 5 yes Figure 4 A magnified view of point B;

[0031] Figure 6 This is a schematic diagram of the air guide plate provided in Embodiment 2 of the present invention;

[0032] Figure 7 This is a schematic diagram of the oven provided in Embodiment 3 of the present invention;

[0033] Figure 8 yes Figure 7 Enlarged view of point C.

[0034] In the picture:

[0035] 1. Oven door; 2. Circuit board; 3. Cooling fan; 4. Convection fan;

[0036] 5. Air guide plate; 51. First air guide section; 52. Adapter section; 53. First mounting section; 54. Second mounting section; 55. Second air guide section; 56. Extension section; 57. Protrusion;

[0037] 10. Door air duct; 20. Main air duct; 30. Side air duct. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] Example 1

[0043] See Figure 1 and Figure 2 An oven includes an oven shell and an oven door 1. The interior of the oven shell forms a cavity for holding food to be baked. The oven door 1 is used to open and close the opening of the oven shell. Typically, the oven shell has a bottom plate, a top plate, a back plate, and side plates. A circuit board 2 is installed inside the top plate, and a control panel is located at the front of the top plate. A cooling fan 3 is installed at the junction of the top plate and the back plate to draw outside air into the air duct. A convection fan 4 is installed inside the back plate.

[0044] The oven includes a heat dissipation system, which includes a door air inlet, an air outlet, a door air duct 10, and a main air duct 20.

[0045] The air inlet is located at the bottom of the oven door 1, and the air outlet is located at the front of the bottom of the oven. One end of the door air duct 10 connects to the door air inlet, and the other end extends upwards along the oven door 1. One end of the main air duct 20 connects to the top of the door air duct 10, and the other end passes sequentially through the circuit board 2 on the top of the oven, the back of the oven, and the bottom of the oven, connecting to the air outlet. Outside air enters through the door air inlet, flows upwards through the door air duct 10, enters the main air duct 20, flows along the top, back, and bottom of the oven, and exits through the air outlet. Figure 1 The middle arrow indicates the direction of airflow. Because the air outlet is located at the front of the bottom of the oven, the air will not blow into the cabinet where the oven is installed, preventing the cabinet from becoming hot and humid. The air will also not blow directly into the operator's face, preventing the operator from being harmed by hot air.

[0046] The oven also includes a deflector plate 5, which is positioned between the air inlet and outlet of the door to separate the air intake and exhaust. This prevents hot air from the outlet from being drawn into the air inlet of the door, ensuring a better cooling effect.

[0047] The air guide plate 5 extends downwards at an angle, directing the airflow from the outlet downwards to prevent it from blowing directly forward and injuring the operator. Simultaneously, it increases the size of the air inlet to a certain extent, increasing the airflow volume and thus improving the cooling duct's working capacity; it also reduces the angle at which the fluid flow direction changes within the intake duct, thereby reducing air resistance within the duct.

[0048] In this embodiment, the air guide plate 5 is located on the bottom side of the air inlet of the door, which can block the air inlet of the door, so that the air inlet of the door is guided to the front side of the oven door 1, and the air in the front side of the oven door 1 is drawn in, instead of the air in the bottom side of the oven door 1, thus avoiding the intake of hot air discharged from the air outlet.

[0049] Specifically, the air guide plate 5 is connected to the bottom of the oven door 1 to be hidden behind the door decorative panel. The position is very inconspicuous and users will hardly notice it during use. Therefore, the arrangement of the air guide plate 5 takes into account its impact on the overall square and simple appearance of the oven.

[0050] See Figure 3 The air guide plate 5 includes a first air guide section 51, a connecting section 52, and a first mounting section 53. The first mounting section 53 is connected to the oven door 1, and the first air guide section 51 extends downward at an angle. The connecting section 52 is disposed between the first air guide section 51 and the first mounting section 53, so that there is a certain distance between the first air guide section 51 and the bottom end of the oven door 1, reserving space for air intake.

[0051] Both the first air guide section 51 and the first mounting section 53 are plate-shaped, saving space. The edges of the air guide plate 5 are folded to prevent sharp edges from scratching the human body and improve the safety index of the air guide plate 5.

[0052] The air guide plate 5 is equipped with reinforcing ribs, which on the one hand increases the overall structural strength of the part and prevents it from deforming during transportation and use; on the other hand, it increases the resonant frequency of the part itself, keeping it away from the vibration frequency generated when the oven is working, and preventing the part from generating noise due to resonance.

[0053] In this embodiment, the first mounting part 53 is connected to the oven door 1 by multiple screws, which is low-cost and allows the air guide plate 5 to be removed without disassembling the oven door 1, making it easy to install, repair and replace.

[0054] In this embodiment, a guide vane 5 guides both the incoming and outgoing air. The upper side of the guide vane 5 forms the air inlet area, and the lower side forms the air outlet area. However, at the edge of the guide vane 5, some outgoing air inevitably mixes with the incoming air.

[0055] Example 2

[0056] Figures 4 to 6Embodiment 2 is shown, wherein the same or corresponding components as in Embodiment 1 are referred to by the same reference numerals as in Embodiment 1. For simplicity, only the differences between Embodiment 2 and Embodiment 1 are described. The difference is that the air guide plate 5 is disposed on the front side of the air outlet, which can block the air outlet from blowing air straight forward, so that the air outlet end is guided downward to move away from the door air inlet, thus preventing the door air inlet from drawing in the hot air discharged from the air outlet.

[0057] Specifically, the air guide plate 5 is connected to the oven shell using multiple screws, which is low-cost and easy to install, repair, and replace. The air guide plate 5 is not wide and can be hidden behind the door decorative panel, making its position very inconspicuous. Users will hardly notice it during use. Therefore, the placement of the air guide plate 5 takes into account its impact on the overall square and simple appearance of the oven.

[0058] See Figure 5 and Figure 6 The air guide plate 5 includes a second mounting portion 54, a second air guide portion 55, and an extension portion 56 connected in sequence. The second mounting portion 54 is connected to the oven housing. The second air guide portion 55 extends downward at an angle, and the extension portion 56 extends horizontally. The downward extension of the second air guide portion 55 increases the air intake area to prevent the air guide plate 55 from affecting the air intake of the door. The horizontal extension of the extension portion 56 increases the air outlet area, further preventing the outlet air from being sucked into the air intake of the door. The angle between the second air guide portion 55 and the extension portion 56 is greater than 90 degrees to prevent breakage.

[0059] The second air guide section 55 has a protrusion 57 on the side near the air outlet. The protrusion 57 can be produced by stamping. The protrusion 57 enhances the strength of the air guide plate 5 and prevents it from deforming and breaking due to long-term exposure to hot air and vibration.

[0060] Example 3

[0061] Figure 7 and Figure 8 Embodiment 3 is shown, wherein components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as those in Embodiment 1. For simplicity, only the differences between Embodiment 2 and Embodiment 1 are described. The difference is that there are two air guide plates 5, namely a first air guide plate and a second air guide plate. The first air guide plate is located on the bottom side of the air inlet of the door, and the second air guide plate is located on the front side of the air outlet. The first air guide plate only guides the inlet air, and the second air guide plate only guides the outlet air, making the separation between the air inlet and outlet of the door more thorough, better preventing the mixing of inlet and outlet air, avoiding the intake of hot air from the door air inlet, and ensuring a better cooling effect.

[0062] In addition, the heat dissipation system also includes a top air inlet, which is located at the front of the top of the oven and connected to the main air duct 20. The air entering through the top air inlet mixes with the air exiting the door air duct 10, enters the main air duct 20, and flows out through the air outlet. Since the air inside the door air duct 10 has a certain temperature, its temperature drops after mixing with the air at the top air inlet, thus dissipating heat from the circuit board 2, resulting in a good cooling effect. Figure 7 The middle arrow indicates the direction of airflow.

[0063] Optionally, the door air inlet and the top air inlet can be opened and closed independently. Specifically, valves are installed at both the door air inlet and the top air inlet, and the oven's control system can control the opening and closing of these valves. When the door air inlet is open and the top air inlet is closed, outside air enters through the door air duct 10, passes through the door air duct 10, enters the main air duct 20, and flows out through the air outlet, simultaneously cooling the oven door 1, circuit board 2, and convection fan 4. When both the door air inlet and the top air inlet are open simultaneously, the air entering through the top air inlet mixes with the air exiting through the door air duct 10, enters the main air duct 20, and flows out through the air outlet. Since the air inside the door air duct 10 has a certain temperature, its temperature drops after mixing with the air at the top air inlet, further cooling the circuit board 2, resulting in a better cooling effect.

[0064] In order to achieve precise heat dissipation in the oven, temperature sensors are installed in different areas inside the oven. The temperature sensors are used to detect the temperature values ​​at locations such as the oven door 1, circuit board 2, and convection fan 4.

[0065] Furthermore, the heat dissipation system also includes a side air inlet and a side air duct 30. The side air inlet is located at the bottom of the side of the oven. One end of the side air duct 30 is connected to the side air inlet, and the other end extends to the top of the oven and is connected to the main air duct 20. The connection between the side air duct 30 and the main air duct 20 is located downstream of the circuit board 2.

[0066] Since the oven door 1 is mostly made of transparent glass, it is difficult to insulate it. Therefore, the cold air flowing through the door channel will be heated to a higher temperature. However, the sides of the oven have insulation measures, so the temperature of the cold air flowing through the sides is still lower than the air temperature at the cooling circuit board 2 inside the main air duct 20.

[0067] Since the air in the main air duct 20 cools the circuit board 2 and has a high temperature, a side air inlet is provided. The air entering through the side air inlet mixes with the air in the main air duct 20 through the side air duct 30, which cools the air in the main air duct 20 and improves the cooling effect on the convection fan 4. Finally, the air is discharged from the air outlet through the bottom of the oven.

[0068] Optionally, the door air inlet, top air inlet, and side air inlet can be opened and closed independently.

[0069] In this embodiment, two side air ducts 30 are provided, which are located on the two side panels of the oven, so that the two sides of the oven can be evenly aired in, thereby dissipating heat evenly, while increasing the air intake and improving the cooling effect.

[0070] Of course, air vents can also be added to other parts of the oven, such as the top plate or back plate, to increase the amount of air intake.

[0071] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oven, characterized in that, include: The air inlet is located at the bottom of the oven door (1); The air vent is located at the front of the bottom of the oven; The door air duct (10) is connected to the door air inlet at one end and extends from bottom to top along the oven door (1) at the other end; The main air duct (20) is connected to the top of the door air duct (10) at one end, and the other end passes through the circuit board (2) on the top of the oven, the back of the oven and the bottom of the oven in sequence, and is connected to the air outlet; An air guide plate (5) is disposed between the air inlet and the air outlet of the door; The side air intake is located at the bottom of the side of the oven. The side air duct (30) is connected to the side air inlet at one end and extends to the top of the oven and is connected to the main air duct (20) at the other end. The connection between the side air duct (30) and the main air duct (20) is located downstream of the circuit board (2).

2. The oven according to claim 1, characterized in that, The air guide plate (5) extends downward at an angle.

3. The oven according to claim 1, characterized in that, The air guide plate (5) is located on the bottom side of the air inlet of the door.

4. The oven according to claim 3, characterized in that, The air guide plate (5) includes a first air guide part (51), a connecting part (52) and a first mounting part (53) connected in sequence. The first mounting part (53) is connected to the oven door (1), and the first air guide part (51) extends downward at an angle.

5. The oven according to claim 4, characterized in that, The air guide plate (5) is provided with reinforcing ribs.

6. The oven according to claim 1, characterized in that, The air guide plate (5) is located on the front side of the air outlet.

7. The oven according to claim 6, characterized in that, The air guide plate (5) includes a second mounting part (54), a second air guide part (55) and an extension part (56) connected in sequence. The second mounting part (54) is connected to the oven shell. The second air guide part (55) extends downward at an angle and the extension part (56) extends horizontally.

8. The oven according to claim 1, characterized in that, There are two air guide plates (5), namely a first air guide plate and a second air guide plate. The first air guide plate is located on the bottom side of the air inlet of the door, and the second air guide plate is located on the front side of the air outlet.

9. The oven according to any one of claims 1-8, characterized in that, It also includes a top air inlet, which is located at the front end of the top of the oven and is connected to the main air duct (20).

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