Heat dissipation structure of cooking device and cooking device
By designing air ducts, cooling fans, and baffle assemblies in the steam oven, and using a drive structure to drive the movable baffle to close the air duct, the problem of scale accumulation caused by steam entering the electrical control box is solved, achieving protection of the electrical control components and a compact heat dissipation structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VATTI CORP LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-06-16
Smart Images

Figure CN224357370U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a heat dissipation structure and cooking equipment. Background Technology
[0002] In the steam oven industry, heat dissipation of the electrical control box is necessary. This is typically achieved by installing a cooling fan to draw cool air from outside the machine to the area requiring cooling—essentially, cooling from the outside in. However, in this configuration, if the air intake is located around the door of the steam oven, there is a risk of high-temperature steam entering the electrical control box through the air duct. While some models have a fan emergency stop function, the airflow doesn't necessarily stop abruptly, allowing a small amount of steam to still enter. Over time, this buildup can leave scale around the air duct, potentially affecting the normal operation of electrical components.
[0003] Therefore, there is an urgent need for a cooking device to solve the above problems. Utility Model Content
[0004] This utility model aims to at least partially solve one of the problems existing in the prior art. To this end, this utility model proposes a heat dissipation structure for a cooking device. The driving structure can drive the movable baffle to close the air duct, thereby preventing the high-temperature steam generated during cooking from entering the air duct and then entering the electrical control box through the air duct. This reduces the accumulation of scale in the air duct and the electrical control box, protecting the electrical control components inside the electrical control box. The structure is simple and compact.
[0005] The above objectives are achieved through the following technical solutions:
[0006] A heat dissipation structure for a cooking device includes:
[0007] An air duct is installed in the housing cavity of the electrical control box of the cooking equipment, and the air inlet of the air duct is connected to the outside of the cooking equipment;
[0008] A cooling fan is disposed in the accommodating cavity, the air inlet of the cooling fan is connected to the air outlet of the air duct, and the air outlet of the cooling fan faces the electronic control component disposed in the accommodating cavity.
[0009] A baffle assembly includes a drive structure and a movable baffle mounted on the output end of the drive structure. The drive structure is installed in the accommodating cavity, and the movable baffle is movably disposed in the air duct. The drive structure is capable of driving the movable baffle to close and open the air duct.
[0010] Optionally, it also includes a duct cover plate. The electrical control box includes a top plate, a bottom plate, and a surrounding plate. The top plate and the bottom plate are arranged opposite to each other. The upper end of the surrounding plate is connected to the periphery of the top plate, and the lower side of the surrounding plate is connected to the periphery of the bottom plate. The top plate, the bottom plate, and the surrounding plate enclose the cavity. The duct cover plate covers the upper part of the bottom plate and encloses the bottom plate to form the duct. The air inlet is located at the front end of the bottom plate, and the movable baffle is located at the air inlet.
[0011] Optionally, the upper end of the movable baffle is hinged to the duct cover and can swing relative to the duct cover between closing and opening the air inlet.
[0012] Optionally, the drive structure includes a push rod motor and a transmission rod. The push rod motor is mounted on the air duct cover plate, one end of the transmission rod is hinged to the output end of the push rod motor, and the other end of the transmission rod is hinged to the middle or lower part of the movable baffle.
[0013] Optionally, the upper side of the duct cover is provided with a mounting slot and a clearance hole, the push rod motor is installed in the mounting slot, and the driven rod extends into the duct through the clearance hole and is hinged to the movable baffle.
[0014] Optionally, the drive structure further includes an elastic reset member disposed within the push rod motor. A limit groove is formed within the push rod motor, and the elastic reset member is disposed within the limit groove and connected to the push rod of the push rod motor. When the push rod motor is powered on, the push rod moves backward and pulls the movable baffle through the transmission rod to open the air inlet. At this time, the elastic reset member is in a retracted state. When the push rod motor is powered off, the push rod moves forward under the rebound force of the elastic reset member and pushes the movable baffle through the transmission rod to close the air inlet.
[0015] Optionally, the air outlet is located on the air duct cover, and the cooling fan is installed above the air outlet.
[0016] Another aspect of this utility model provides a cooking device, including an electrical control box, an electrical control component disposed within the electrical control box, and the aforementioned heat dissipation structure.
[0017] Compared with the prior art, the present invention has at least the following beneficial effects:
[0018] This utility model provides a heat dissipation structure for a cooking device, including an air duct, a cooling fan, and a baffle assembly. The air duct is housed within the electrical control box of the cooking device, with its air inlet connected to the outside of the device. The cooling fan is also housed within the cavity, with its air inlet connected to the air outlet of the air duct, and its air outlet facing the electrical control components housed within the cavity. The baffle assembly includes a drive structure and a movable baffle mounted on the output end of the drive structure. The drive structure is installed within the cavity, and the movable baffle is movably positioned within the air duct. The drive structure can drive the movable baffle to close and open the air duct. When the cooking device is in operation, or within a first preset time T1 after cooking is completed, and the door of the cooking device is opened, the drive structure can drive the movable baffle to close the air duct, thereby preventing high-temperature steam generated during cooking from entering the air duct and then entering the electrical control box. This reduces scale buildup in the air duct and the electrical control box, protecting the electrical control components within the box. The structure is simple and compact. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the heat dissipation structure of the cooking equipment provided in a specific embodiment of the present invention, installed in the electrical control box (with a movable baffle closing the air duct);
[0020] Figure 2 yes Figure 1 Exploded view;
[0021] Figure 3 yes Figure 1 Top view;
[0022] Figure 4 yes Figure 3 Sectional view at point AA;
[0023] Figure 5 yes Figure 4 Enlarged view of point B in the middle;
[0024] Figure 6 A cross-sectional view of the heat dissipation structure of the cooking equipment provided in a specific embodiment of this utility model, installed in the electrical control box (movable baffle opens the air duct);
[0025] Figure 7 yes Figure 6 Enlarged view of point D in the middle.
[0026] In the picture:
[0027] 1. Drive structure; 11. Push rod motor; 111. Push rod; 112. Elastic reset component; 110. Limiting groove; 12. Transmission rod;
[0028] 2. Cooling fan;
[0029] 3. Movable baffle;
[0030] 4. Electrical control box; 41. Base plate; 42. Enclosure;
[0031] 5. Air duct cover; 51. Mounting slot; 52. Clearance hole;
[0032] 100, containment cavity; 200, air duct; 201, air inlet; 202, air outlet. Detailed Implementation
[0033] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.
[0034] Please refer to Figures 1-7 This utility model provides a heat dissipation structure for a cooking device, including an air duct 200, a cooling fan 2, and a baffle assembly. The air duct 200 is disposed within the housing cavity 100 of the electrical control box 4 of the cooking device, and its air inlet 201 communicates with the outside of the cooking device. The cooling fan 2 is disposed within the housing cavity 100, with its air inlet connected to the air outlet 202 of the air duct 200, and its air outlet facing the electrical control assembly disposed within the housing cavity 100. The baffle assembly includes a drive structure 1 and a movable baffle 3 mounted on the output end of the drive structure 1. The drive structure 1 is mounted within the housing cavity 100, and the movable baffle 3 is movably disposed within the air duct 200. The drive structure 1 can drive the movable baffle 3 to close and open the air duct 200. When the cooking equipment is in the cooking process, or within the first preset time T1 after cooking is completed, and the door of the cooking equipment is opened, the drive structure 1 drives the movable baffle 3 to close the air duct 200, thereby preventing the high-temperature steam generated during cooking from entering the air duct 200 and entering the electrical control box through the air duct 200. This reduces the accumulation of scale in the air duct 200 and the electrical control box 4, protecting the electrical control components inside the electrical control box 4. The structure is simple and compact.
[0035] Specifically, when the cooking device is in the cooking process, or within a first preset time T1 after cooking (during which steam is being released from the cooking device), and the door of the cooking device is opened, the drive structure 1 drives the movable baffle 3 to close the air duct 200 (e.g., Figure 4 and Figure 5 As shown), the cooling fan 2 stops operating. When the cooking equipment has completed cooking for a first preset time T1 to a second preset time T2 (during the lid-off time period, most of the steam inside the cooking equipment has been discharged), and the door of the cooking equipment is opened, the drive structure 1 drives the movable baffle 3 to open the air duct 200 (as shown). Figure 6 and Figure 7As shown), the cooling fan 2 operates simultaneously to dissipate heat from the electrical control box until the third preset time T3, at which point the cooling fan 2 stops operating, and the drive structure 1 drives the movable baffle 3 to close the air duct 200 (as shown). Figure 4 and Figure 5 As shown), the cooking device is in standby mode. When the cooking device is in the cooking process and the door of the cooking device is closed, the drive structure 1 drives the movable baffle 3 to open the air duct 200 (as shown). Figure 6 and Figure 7 As shown in the figure, at the same time, the cooling fan 2 runs to cool the electrical control box.
[0036] Optionally, it also includes a duct cover plate 5. The electrical control box 4 includes a top plate (not shown in the figure), a bottom plate 41 and a surrounding plate 42. The top plate and the bottom plate 41 are arranged opposite to each other. The upper end of the surrounding plate 42 is connected to the periphery of the top plate, and the lower side of the surrounding plate 42 is connected to the periphery of the bottom plate 41. The top plate, the bottom plate 41 and the surrounding plate 42 enclose and form an accommodating cavity 100. The duct cover plate 5 covers the upper side of the bottom plate 41 and encloses the bottom plate 41 to form a duct 200. The air inlet 201 is located at the front end of the bottom plate 41. The movable baffle 3 is located at the air inlet 201 to shield the high-temperature steam at the air inlet 201 and minimize the high-temperature steam entering the duct 200.
[0037] Optionally, the upper end of the movable baffle 3 is hinged to the duct cover 5 and can swing relative to the duct cover 5 between closing the air inlet 201 and opening the air inlet 201. The structure is simple and compact, easy to install, and has high stability.
[0038] Optionally, the drive structure 1 includes a push rod motor 11 and a transmission rod 12. The push rod motor 11 is mounted on the air duct cover plate 5. One end of the transmission rod 12 is hinged to the output end of the push rod motor 11, and the other end of the transmission rod 12 is hinged to the middle or lower part of the movable baffle 3 to push the lower end of the movable baffle 3 to swing relative to the air duct cover plate 5.
[0039] Optionally, the upper side of the duct cover plate 5 is provided with a mounting slot 51 and a clearance hole 52. The push rod motor 11 is installed in the mounting slot 51, and the driven rod 12 extends into the duct 200 through the clearance hole 52 and is hinged to the movable baffle 3, so as to avoid installing the push rod motor 11 in the duct 200 and not affect the air intake.
[0040] Optionally, the drive structure 1 also includes an elastic reset member 112 disposed within the push rod motor 11. A limit groove 110 is provided within the push rod motor 11, and the elastic reset member 112 is disposed within the limit groove 110 and connected to the push rod 111 of the push rod motor 11. When the push rod motor 11 is powered on, the push rod 111 moves backward and pulls the movable baffle 3 through the transmission rod 12 to open the air inlet 201. At this time, the elastic reset member 112 is in a retracted state. When the push rod motor 11 is powered off, the push rod 111 moves forward under the rebound force of the elastic reset member 112 and pushes the movable baffle 3 through the transmission rod 12 to close the air inlet 201. The structure is simple, and when the cooking equipment is powered off, it can ensure that the movable baffle 3 is always in the state of closing the air inlet 201, thus ensuring high safety.
[0041] Optionally, the air outlet 202 is opened on the air duct cover 5, and the cooling fan 2 is installed above the air outlet 202.
[0042] Another aspect of this utility model provides a cooking device, including an electrical control box, an electrical control component disposed inside the electrical control box, and the aforementioned heat dissipation structure.
[0043] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.
Claims
1. A heat dissipation structure for a cooking device, characterized in that, include: The air duct (200) is installed in the accommodating cavity (100) of the electrical control box (4) of the cooking equipment, and the air inlet (201) of the air duct (200) is connected to the outside of the cooking equipment; A cooling fan (2) is disposed in the accommodating cavity (100). The air inlet of the cooling fan (2) is connected to the air outlet (202) of the air duct (200). The air outlet of the cooling fan (2) faces the electrical control component disposed in the accommodating cavity (100). The baffle assembly includes a drive structure (1) and a movable baffle (3) installed at the output end of the drive structure (1). The drive structure (1) is installed in the accommodating cavity (100), and the movable baffle (3) is movably disposed in the air duct (200). The drive structure (1) can drive the movable baffle (3) to close and open the air duct (200).
2. The heat dissipation structure of the cooking equipment according to claim 1, characterized in that, It also includes a duct cover plate (5). The electrical control box (4) includes a top plate, a bottom plate (41) and a surrounding plate (42). The top plate and the bottom plate (41) are arranged opposite to each other. The upper end of the surrounding plate (42) is connected to the periphery of the top plate. The lower side of the surrounding plate (42) is connected to the periphery of the bottom plate (41). The top plate, the bottom plate (41) and the surrounding plate (42) enclose the cavity (100). The duct cover plate (5) covers the upper side of the bottom plate (41) and encloses the bottom plate (41) to form the duct (200). The air inlet (201) is located at the front end of the bottom plate (41). The movable baffle (3) is located at the air inlet (201).
3. The heat dissipation structure of the cooking equipment according to claim 2, characterized in that, The upper end of the movable baffle (3) is hinged to the air duct cover (5) and can swing relative to the air duct cover (5) between closing the air inlet (201) and opening the air inlet (201).
4. The heat dissipation structure of the cooking equipment according to claim 3, characterized in that, The drive structure (1) includes a push rod motor (11) and a transmission rod (12). The push rod motor (11) is mounted on the air duct cover (5). One end of the transmission rod (12) is hinged to the output end of the push rod motor (11), and the other end of the transmission rod (12) is hinged to the middle or lower part of the movable baffle (3).
5. The heat dissipation structure of the cooking equipment according to claim 4, characterized in that, The upper side of the air duct cover (5) is provided with a mounting slot (51) and a clearance hole (52). The push rod motor (11) is installed in the mounting slot (51), and the transmission rod (12) extends into the air duct (200) through the clearance hole (52) and is hinged to the movable baffle (3).
6. The heat dissipation structure of the cooking equipment according to claim 4, characterized in that, The drive structure (1) further includes an elastic reset member (112) disposed in the push rod motor (11). A limit groove (110) is provided in the push rod motor (11). The elastic reset member (112) is disposed in the limit groove (110) and connected to the push rod (111) of the push rod motor (11). When the push rod motor (11) is powered on, the push rod (111) moves backward and pulls the movable baffle (3) through the transmission rod (12) to open the air inlet (201). At this time, the elastic reset member (112) is in a retracted state. When the push rod motor (11) is powered off, the push rod (111) moves forward under the rebound force of the elastic reset member (112) and pushes the movable baffle (3) through the transmission rod (12) to close the air inlet (201).
7. The heat dissipation structure of the cooking equipment according to claim 2, characterized in that, The air outlet (202) is located on the air duct cover plate (5), and the cooling fan (2) is installed above the air outlet (202).
8. A cooking device, characterized in that, It includes an electrical control box (4), an electrical control component disposed within the electrical control box (4), and a heat dissipation structure as described in any one of claims 1-7.