Door body cooling structure of cooking equipment

Abstract

The utility model discloses a door body cooling structure of cooking equipment, which comprises a cooking equipment base and a door body, a fan is arranged in the cooking equipment base, the door body comprises outer glass and at least one layer of inner glass, a hollow channel with an opening at the top is formed between the outer glass and the inner glass, and the inner glass is arranged in the hollow channel. The cooking equipment base is provided with a ventilation opening, when the draught fan works, cold air is fed into the hollow channel for heat exchange, the air obtained after heat exchange flows out of the top opening, and therefore the surface temperature of the outer glass is reduced. According to the door body cooling structure of the cooking equipment, cold air is blown into the hollow channel through the fan to cool the outer glass, and the problem that the temperature of the surface of the outer glass is too high is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking equipment, in particular to a door cooling structure of cooking equipment. Background Art

[0002] Existing steam ovens are widely used in both home and commercial cooking applications. Because multifunctional steam ovens often offer multiple cooking modes, such as steaming, baking, and grilling, the outer glass surface temperature of the door rises significantly in the grilling mode, posing a risk of burns to the user. To address this safety hazard, various cooling solutions have emerged within the industry. Some steam ovens utilize a three-layer insulating glass structure, achieving natural convection cooling through the hollow layer. However, even with prolonged use in the grilling mode, the outer glass temperature remains difficult to effectively reduce to a safe level, posing a significant safety risk.

[0003] Currently, related technical solutions mainly focus on slowing heat conduction from the door surface by designing hollow structures and strengthening cooling channels. However, there is still a lack of innovative solutions that can effectively maintain the outer glass surface temperature within a safe range, are simple to operate, and have low energy consumption. To further improve the safety of steam ovens and address the shortcomings of existing technologies, this utility model proposes a new door cooling structure. Utility Model Content

[0004] The purpose of the utility model is to provide a door cooling structure for cooking equipment, which uses a fan to blow cold air into the hollow channel to cool the outer glass, effectively solving the problem of excessively high surface temperature of the outer glass.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A door cooling structure for cooking equipment includes a cooking equipment base and a door body, a fan is arranged in the cooking equipment base, the door body includes outer glass and at least one layer of inner glass, a hollow channel with a top opening is formed between the outer glass and the inner glass, and the cooking equipment base has a vent. When the fan is working, cold air is sent into the hollow channel for heat exchange, and the air after heat exchange flows out from the top opening, thereby reducing the surface temperature of the outer glass.

[0007] Preferably, a temperature sensing control module is further included, which is electrically connected to the fan. When the temperature of the outer glass is higher than the set temperature, the temperature sensing control module controls the fan to work and introduce cold air into the hollow channel; when the temperature of the outer glass is lower than the set temperature, the temperature sensing control module controls the fan to stop working.

[0008] Preferably, a door frame is provided on the peripheral side of the outer glass, and a door body switch is provided on the door frame. The door body switch is electrically connected to the fan and the temperature sensing control module. When the door body is closed, the door body switch is closed to electrically connect the fan and the temperature sensing control module, and the temperature sensing control module controls the fan to be turned on and off; when the door body is open, the door body switch is opened, the temperature sensing control module is electrically disconnected from the fan, and the temperature sensing control module cannot control the fan to be turned on and off.

[0009] Preferably, the fan is a cross-flow fan.

[0010] Preferably, the vent includes an air inlet and an air outlet, the air inlet is located at the bottom of the cooking device base, and the air outlet is provided on the front side of the cooking device base.

[0011] Preferably, the air outlet is provided with an air guide plate, and / or the fan is installed at an angle, so that the air outlet of the fan is blown obliquely upward and forward.

[0012] Preferably, a water collecting box is provided on the inner side of the outer glass below the air outlet, and wind shields are provided on both sides of the air outlet; or wind shields are provided on the inner side of the outer glass below the air outlet and on both sides of the air outlet.

[0013] Preferably, a heat insulating member is provided between the door frame and the inner glass, and the heat insulating member is connected to the door frame and abuts against the inner glass.

[0014] Preferably, the thermal insulation component includes at least two side brackets and flexible support pads installed on the side brackets, the two side brackets are fixedly connected to the door frame and are respectively located on both sides of the door frame, and the flexible support pads are against the inner glass.

[0015] Preferably, the inner surface of the inner glass has a heat reflective coating.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. By integrating the fan and temperature-sensing control module, the surface temperature of the door's exterior glass can be effectively reduced, preventing the risk of burns from overheating during use. Especially in baking mode, the fan can be automatically turned on and off to ensure that the exterior glass temperature remains within a safe range.

[0018] 2. The temperature-sensing control module automatically turns the fan on and off according to the temperature changes of the outer glass, preventing the fan from running ineffectively for a long time, reducing energy consumption and improving energy efficiency. In addition, the fan design and the optimization of the cold air flow path make the cooling process more efficient.

[0019] 3. The setting of thermal insulation effectively prevents heat from being transferred to the door frame and surrounding components, protects the door structure and its accessories from high temperature, and extends the service life of the equipment.

[0020] 4. The heat insulation design between the door frame and the inner glass not only effectively insulates, but also prevents the door frame and outer glass from overheating, avoiding burns caused by touching the door frame when opening the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic cross-sectional view of the door cooling structure of the cooking device in Example 1;

[0023] Figure 2 This is a schematic structural diagram of the door cooling structure of the cooking device in Example 1;

[0024] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0025] Figure 4 for Figure 2 Schematic diagram of the cross-section structure at CC;

[0026] Figure 5 This is a schematic structural diagram of the cooking device in Example 1;

[0027] Figure 6 This is a structural diagram of the door cooling structure of the cooking equipment in Example 2.

[0028] In the figure: 1. Cooking equipment base; 11. Air inlet; 12. Air outlet; 13. Air guide plate; 2. Cooking equipment chamber; 3. Door body; 31. Outer glass; 32. Inner glass; 33. Hollow channel; 34. Top opening; 35. Door frame; 36. Insulation; 361. Side bracket; 362. Flexible support pad; 37. Wind shield; 5. Fan; 6. Water collection box. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Example 1

[0031] This embodiment provides a door cooling structure for a cooking device, which is intended to effectively solve the problem of excessively high surface temperature of the glass outside the door of a traditional oven during use, which can easily cause burns.

[0032] As shown in Figures 1-5, the cooking device includes a cooking device base 1, a cooking device cavity 2, and a door body 3. The door body 3 is composed of an outer glass 31 and at least one layer of inner glass 32. The inner surface of the inner glass 32 is also provided with a heat-reflective coating to reduce heat transfer to the outside. A hollow channel 33 with a top opening is formed between the outer glass 31 and the inner glass 32. When the cooking device is in operation, the temperature inside the cooking device cavity will rise, and the surface temperature of the outer glass 31 of the door body 3 will rise accordingly. In order to prevent the risk of burns caused by the outer glass 31 being too high in temperature, a fan 5 is provided in the cooking device base 1. The fan 5 can send cold air from the air inlet 11 at the bottom of the cooking device base 1 into the hollow channel 33 in the door body 3. After heat exchange, the hot air flows out from the top opening 34, thereby reducing the surface temperature of the outer glass 31.

[0033] In addition, in order to more accurately control the start and stop of the fan, a temperature sensing control module is also provided, and the temperature sensing control module is electrically connected to the fan 5. The temperature sensing control module includes a temperature sensor, which is located on the outer glass 31 and is used to detect the surface temperature of the outer glass 31 in real time. When the temperature of the outer glass 31 exceeds the set safety temperature, the temperature sensing control module automatically controls the fan 5 to start, and introduces cold air into the hollow channel 33 for heat exchange and cooling; when the temperature returns to below the safety value, the temperature sensing control module automatically shuts down the fan 5 to avoid overcooling and energy waste. The temperature sensing control module detects the temperature of the outer glass in real time through the temperature sensor to ensure that the system can respond quickly and adjust the operating status of the fan when the door temperature changes. This automated control method not only improves the cooling efficiency, but also reduces the user's operational intervention and enhances the intelligence of the equipment.

[0034] A door frame 35 is provided on the peripheral side of the outer glass 31, and a door switch is provided on the door frame 35. The door switch is electrically connected to the fan 5 and the temperature sensing control module. When the door body 3 is in a closed state, the door switch is closed to electrically connect the fan 5 and the temperature sensing control module, and the temperature sensing control module controls the opening and closing of the fan 5; when the door body is in an open state, the door switch is opened, the temperature sensing control module is electrically disconnected from the fan 5, and the temperature sensing control module cannot control the opening and closing of the fan 5.

[0035] Optimized Fan Position and Design: In this embodiment, fan 5 utilizes a cross-flow fan, which generates uniform airflow and effectively reduces the temperature of the outer glass 31 of door body 3. Furthermore, the air inlet of fan 5 corresponds to air inlet 11 at the bottom of cooking device base 1, while the air outlet of fan 5 corresponds to air outlet 12 on the front side of cooking device base 1, ensuring smooth entry of cool air into hollow passage 33. The width of the air outlet of fan 5 is approximately equal to or equal to the width of hollow passage 33 between outer glass 31 and inner glass 32. Air outlet 12 is located below inner glass 32. Through the rational design of the flow path and wind speed, uniform air flow and cooling effectiveness are ensured.

[0036] The air outlet 12 is provided with an air guide plate 13, and / or the fan 5 is installed at an angle, so that the air outlet of the fan 5 is tilted upward and forward. Through this design, the air outlet direction of the fan 5 is changed from the horizontal direction to the vertical hollow channel 33 with less resistance. This design further improves the efficiency of air flow, ensures the smooth flow of cold air, and avoids the occurrence of dead corners in the air flow. The direction and force of the air flow are also taken into consideration when installing the fan 5, so that the cold air can effectively cool the entire hollow channel 33 and flow out evenly. In addition, the design of the air guide plate 13 and the tilting design of the fan 5 can also enable the user to open the door body 3. The cold air blown out by the fan 5 can dissipate the hot air in the cooking device cavity 2, so that the user will not feel the burning sensation caused by the hot air in the cooking device cavity 2 when using it, thereby improving the user's experience. The cross-sectional shape of the air guide plate is a broken line surface or an arc surface.

[0037] In order to further enhance the cooling effect, a heat insulating member 36 is provided between the door frame 35 and the inner glass 32 on the side of the outer glass. The heat insulating member 36 includes two side brackets 361 located on the left and right sides and a flexible support pad 362 mounted on the side brackets. The flexible support pad 362 is preferably made of rubber material. The flexible support pad 362 abuts against the inner glass 32, so that there is a gap between the side bracket 361 and the inner glass 32. In this way, the heat on the inner glass 32 will not be directly transferred to the side bracket 361 and the door frame 35, thereby preventing the outer surface temperature of the door frame 35 from rising. At the same time, a small portion of the cold air entering the hollow channel 33 flows out of this gap, thereby improving the heat dissipation effect of the outer glass 31.

[0038] A water collecting box 6 is installed at the bottom of the door body 3. The water collecting box 6 can not only collect the condensed water dripping from the inner glass 32, but also block the wind blown out by the fan 5 when the door body 3 is closed. Wind shields 37 are fixed on both sides of the lower part of the inner side surface of the door frame 35, so that all the wind blown out by the fan 5 enters the hollow channel 33.

[0039] In another embodiment, wind shields 37 are disposed on the inner side of the outer glass 31 below the air outlet 12 and on both sides of the air outlet 12 .

[0040] Example 2

[0041] like Figure 6 As shown, the difference from Example 1 is that the inner glass 32 is a double-layer hollow glass, the purpose of which is to reduce the heat of the inner glass 32 from being transferred to the hollow channel 33 and carried away by the cold air, which is beneficial to heat loss of the cooking equipment and more energy-saving.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A door cooling structure for a cooking device, comprising a cooking device base (1) and a door (3), characterized in that: A fan (5) is provided in the cooking device base (1); the door body (3) comprises an outer glass (31) and at least one layer of inner glass (32); a hollow channel (33) with a top opening (34) is formed between the outer glass (31) and the inner glass (32); the cooking device base (1) has a vent; when the fan (5) is in operation, cold air is sent into the hollow channel (33) for heat exchange, and the air after heat exchange flows out from the top opening (34), thereby reducing the surface temperature of the outer glass (31).

2. The door cooling structure of a cooking device according to claim 1, characterized in that: The invention also includes a temperature sensing control module, which is electrically connected to the fan (5). When the temperature of the outer glass (31) is higher than a set temperature, the temperature sensing control module controls the fan (5) to operate and introduce cold air into the hollow channel (33); when the temperature of the outer glass (31) is lower than the set temperature, the temperature sensing control module controls the fan (5) to stop operating.

3. The door cooling structure of a cooking device according to claim 2, characterized in that: A door frame (35) is provided on the peripheral side of the outer glass (31), and a door switch is provided on the door frame (35). The door switch is electrically connected to the fan (5) and the temperature sensing control module. When the door (3) is in a closed state, the door switch is closed to electrically connect the fan (5) and the temperature sensing control module, and the temperature sensing control module controls the fan (5) to be turned on and off; when the door (3) is in an open state, the door switch is opened, the temperature sensing control module is electrically disconnected from the fan (5), and the temperature sensing control module cannot control the fan (5) to be turned on and off.

4. The door cooling structure of a cooking device according to claim 1, characterized in that: The fan (5) is a cross-flow fan (5).

5. The door cooling structure of a cooking device according to claim 1, characterized in that: The vent comprises an air inlet (11) and an air outlet (12), wherein the air inlet (11) is located at the bottom of the cooking device base (1), and the air outlet (12) is provided on the front side of the cooking device base (1).

6. The door cooling structure of cooking equipment according to claim 5, characterized in that: The air outlet (12) is provided with an air guide plate (13), and / or the fan (5) is installed at an angle, so that the air outlet of the fan (5) blows obliquely upward and forward.

7. The door cooling structure of cooking equipment according to claim 5, characterized in that: A water receiving box (6) is provided on the inner side of the outer glass (31) below the air outlet (12), and windshields are provided on both sides of the air outlet (12); or windshields are provided on the inner side of the outer glass (31) below the air outlet (12) and on both sides of the air outlet (12).

8. The door cooling structure of cooking equipment according to claim 3, characterized in that: A heat insulating member (36) is provided between the door frame (35) and the inner glass (32); the heat insulating member (36) is connected to the door frame (35) and abuts against the inner glass (32).

9. The door cooling structure of cooking equipment according to claim 8, characterized in that: The heat insulating member (36) comprises at least two side brackets (361) and flexible support pads (362) mounted on the side brackets (361); the two side brackets (361) are fixedly connected to the door frame (35) and are respectively located on both sides of the door frame (35); and the flexible support pads (362) are against the inner glass (32).

10. The door cooling structure of cooking equipment according to claim 1, characterized in that: The inner surface of the inner glass (32) has a heat reflective coating.

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