Door body structure and cooking equipment

Abstract

The utility model relates to a door body structure and cooking equipment. The door body structure comprises a box body, and a cooking space is formed in the box body; the door body is rotatably arranged on the box body around the length direction of the box body and is used for sealing the cooking space; the hinge assembly is connected with the box body and the door body; the driving assembly is arranged on the box body, is connected with the hinge assembly and is used for driving the door body to rotate around the length direction of the box body; the push rod assembly is arranged on the box body, is spaced from the hinge assembly in the height direction of the box body and is used for pushing the door body in the width direction of the box body; by arranging the push rod assembly spaced from the hinge assembly, the push rod assembly is used for assisting the door body in breaking through the initial resistance section at the initial opening section of the door body, then the gravity center of the door body moves outwards so that the torque needed by the driving assembly can be reduced, the driving assembly only needs to meet the follow-up torque requirement, and the requirements for the power and the size of a driving part in the driving assembly are remarkably reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of cooking equipment, and in particular to a door structure and cooking equipment. Background Technology

[0002] Most microwave ovens, ovens, steam ovens, and other cooking appliances have doors that are mounted on the appliance body and rotate back and forth via hinges on the lower left and right sides. To improve the user experience, some doors now feature automatic opening and closing functions, which work by installing motors or other drive components on the hinges to automatically open and close the door.

[0003] However, since the center of gravity of the door changes during the opening and closing process, the torque requirements of the drive components also change. Especially at the moment of opening, the starting torque requirements of the drive components are extremely high. As a result, in order to realize the automatic door opening and closing function, it is necessary to equip the drive components with large volume and high power, which occupies a lot of space and also affects the equipment cost. Utility Model Content

[0004] Therefore, it is necessary to address the problem that the motors in current door structures with automatic opening and closing functions are large in size and have high power, resulting in a large space occupation and affecting equipment costs, and to provide a door structure and cooking equipment that can occupy less space and has a relatively low cost.

[0005] This application first provides a door structure, including

[0006] The container has an internal cooking space;

[0007] A door is rotatably mounted on the box body along its length to enclose the cooking space;

[0008] A hinge assembly connecting the housing and the door;

[0009] A drive assembly, disposed in the housing and connected to the hinge assembly, is used to drive the door to rotate about the length of the housing;

[0010] A push rod assembly is disposed in the housing and spaced apart from the hinge assembly along the height direction of the housing, for pushing the door along the width direction of the housing.

[0011] In one embodiment, the hinge assembly includes a tongue and a housing, the housing being fixed to the box body, the tongue being fixed to the door body and hinged to the housing, the hinge point being a rotation fulcrum;

[0012] The drive assembly is connected to the tongue strip, and this connection point is the drive force point; the contact point between the push rod assembly and the door body is the push rod force point.

[0013] The distance between the rotation fulcrum and the driving force point along the height direction of the housing is less than the distance between the rotation fulcrum and the push rod force point along the height direction of the housing.

[0014] In one embodiment, the push rod assembly is located above the hinge assembly along the height direction of the housing and is located below the housing along the height direction of the housing.

[0015] In one embodiment, a resistance element is further connected between the tongue and the housing, the resistance element being used to deform during the opening of the door and elastically recover during the closing of the door.

[0016] In one embodiment, the push rod assembly includes a push rod motor and a telescopic rod, the telescopic rod being fixed to the movable end of the push rod motor, the push rod motor being fixed to the housing and used to drive the telescopic rod to extend and retract along the width direction of the housing.

[0017] In one embodiment, the box body is provided with an inner liner, and the door structure includes a set of push rod assemblies, and the push rod assemblies are arranged on one side of the inner liner along the width direction of the box body.

[0018] In one embodiment, the door structure includes two sets of hinge assemblies respectively disposed on both sides of the inner liner along the width direction of the box body, wherein the hinge assembly on the same side as the push rod assembly is connected to the drive assembly.

[0019] In one embodiment, a water tank is further provided inside the box, and the water tank, the push rod assembly, and the hinge assembly connected to the drive assembly are located on the same side of the inner liner along the width direction of the box.

[0020] In one embodiment, the hinge assembly is at least partially located on the lower side of the water tank along the height direction of the tank body, and the push rod assembly is located on the side of the water tank away from the inner liner along the width direction of the tank body.

[0021] A second aspect of this application provides a cooking device including the aforementioned door structure.

[0022] The aforementioned door structure incorporates push rod assemblies spaced apart from the hinge assembly. These push rod assemblies assist the door in overcoming initial resistance during the initial opening phase. Subsequently, as the door's center of gravity shifts outward, the torque required by the drive assembly decreases. The drive assembly only needs to meet subsequent torque requirements, significantly reducing the power and volume requirements of the drive components within the drive assembly. Attached Figure Description

[0023] Figure 1A perspective view of the cooking device of this application cut along one of the hinge assemblies;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0025] Reference numerals: 100, housing; 200, door; 10, hinge assembly; 11, tongue; 12, shell; 20, drive assembly; 21, drive motor; 22, transmission assembly; 30, push rod assembly; 31, push rod motor; 32, telescopic rod; 40, inner liner; 50, water tank. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] For ease of description, the opening side of the cooking space is defined as the front of the box 100 in this application. When the box 100 is placed normally, the horizontal direction of the front of the box 100 is defined as the length direction of the box 100, the vertical direction of the front of the box 100 is defined as the height direction of the box, and the depth direction of the cooking space is defined as the width direction of the box 100.

[0033] Please combine Figure 1 as well as Figure 2As shown, this application first provides a door structure, including: a housing 100 with an internal cooking space; a door 200 rotatably disposed on the housing 100 about the length of the housing 100 for enclosing the cooking space; a hinge assembly 10 connecting the housing 100 and the door 200; a drive assembly 20 disposed on the housing 100 and connected to the hinge assembly 10 for driving the door 200 to rotate about the length of the housing 100; and a push rod assembly 30 disposed on the housing 100 and spaced apart from the hinge assembly 10 along the height of the housing 100 for pushing the door 200 along the width of the housing 100.

[0034] It is understandable that when the door 200 is closed, its center of gravity is close to the hinge assembly 10, and the drive assembly 20 requires maximum torque to overcome static friction and gravitational resistance during the start-up phase. However, in this application, by setting up a push rod assembly 30, the push rod assembly 30 is used to assist the door 200 in overcoming the initial resistance stage when the door 200 is initially opened. Afterwards, the center of gravity of the door 200 shifts outwards, reducing the torque required by the drive assembly 20. The drive assembly 20 only needs to meet the subsequent torque requirements, significantly reducing the power and volume requirements of the drive components inside the drive assembly 20.

[0035] Furthermore, since the push rod assembly 30 and the hinge assembly 10 are spaced apart, the lever arm of the push rod assembly 30 in the initial opening stage of the door 200 is relatively large. Only a small force is needed to push the door 200 to break through the initial resistance stage of the initial opening stage. Only a small-sized and low-power push rod motor 31 is needed to meet the requirements.

[0036] It should be noted that the initial opening of the door 200 can be achieved by pushing the push rod assembly 30 alone, or by the push rod assembly 30 and the drive assembly 20 working together. This application does not impose any further limitations on this.

[0037] Please refer to Figure 2 As shown, in some embodiments, the hinge assembly 10 includes a tongue 11 and a housing 12. The housing 12 is fixed to the box body 100, and the tongue 11 is fixed to the door body 200 and hinged to the housing 12. The hinge point is a rotation fulcrum. The drive assembly 20 is connected to the tongue 11, and the connection point is a drive force point. The contact point between the push rod assembly 30 and the door body 200 is a push rod force point. The distance between the rotation fulcrum and the drive force point along the height direction of the box body 100 is less than the distance between the rotation fulcrum and the push rod force point along the height direction of the box body 100.

[0038] In other words, in the initial opening stage of the door 200, the lever arm of the push rod assembly 30 is greater than that of the drive assembly 20. This amplifies the mechanical benefits through the longer lever arm, allowing the push rod assembly 30 to overcome the maximum resistance stage of the initial opening stage of the door 200 with only a smaller driving force. Consequently, the volume and power of the newly added push rod assembly 30 are less than the reduction in volume and power of the drive assembly 20.

[0039] Please refer to Figure 2 As shown, in some embodiments, the push rod assembly 30 is located above the hinge assembly 10 along the height direction of the housing 100, and also located on the lower side of the housing 100 along the height direction of the housing 100. It is easy to understand that the greater the distance between the push rod assembly 30 and the hinge assembly 10, the longer the lever arm of the push rod assembly 30, and the less power is required for the push rod assembly 30 to push the door 200 through the initial opening stage. However, according to data calculations, when the push rod assembly 30 is located on the lower side of the housing 100, the thrust provided by the conventional push rod motor 31 is already sufficient to allow the door 200 to break through the initial opening stage.

[0040] Based on this, the push rod motor 31 is positioned on the lower side of the housing 100. Compared to the upper side, the extension stroke required to push the door 200 to open to the same angle is smaller, which can reduce the space occupied by the push rod assembly 30 and further improve the compactness of the door mechanism of this application.

[0041] In some embodiments, a resistance element is also connected between the tongue 11 and the housing 12. The resistance element is used to deform during the opening of the door 200 and elastically recover during the closing of the door 200. It should be understood that the resistance element can combine the weight of the door 200 to realize the conversion of elastic potential energy, thereby providing dynamic assistance for the opening and closing action of the door 200.

[0042] In other words, when the door 200 is opened, the door 200 falls due to its own weight, and the resistance element is stretched and deformed (storing elastic potential energy). At this time, gravity assists in opening the door, and the drive component 20 only needs to provide a small amount of power to overcome static friction and inertia, effectively reducing the energy consumption of opening the door. When the door 200 is closed, the resistance element contracts (elastic recovery) and releases the stored elastic potential energy to assist the drive component 20 in resisting the closing resistance brought by the gravity of the door 200, thereby saving the extra power required to resist the gravity of the door 200. This allows the drive component 20 of this application to use a drive motor 21 with smaller power and a more compact size.

[0043] Specifically, the resistance element is a tension spring or other elastic element, which will not be listed here in this application.

[0044] Please refer to Figure 2 As shown, in some embodiments, the drive assembly 20 includes a drive motor 21 and a transmission assembly 22. The drive motor 21 is fixed to the housing 100, and the transmission assembly 22 is connected to the drive end of the drive motor 21 and the tongue 11 respectively. After the drive motor 21 is started, it can drive the tongue 11 and the door 200 to rotate through the transmission assembly 22.

[0045] Please refer to Figure 2As shown, in some embodiments, the push rod assembly 30 includes a push rod motor 31 and a telescopic rod 32. The telescopic rod 32 is fixed to the movable end of the push rod motor 31. The push rod motor 31 is fixed to the housing 100 and is used to drive the telescopic rod 32 to extend and retract along the width direction of the housing 100. When the door 200 is closed, the telescopic rod 32 contacts the door 200.

[0046] Specifically, the contact end between the telescopic rod 32 and the door 200 is spherical to ensure that the telescopic rod 32 can always maintain stable contact with the door 200 and provide thrust during the initial opening of the door 200.

[0047] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the box 100 is provided with an inner liner 40, and the door structure includes a set of push rod assemblies 30, which are arranged on one side of the inner liner 40 along the width direction of the box 100.

[0048] It should be understood that in this application, the push rod assembly 30 only provides thrust during the initial opening phase of the door 200, and the push rod assembly 30 has a relatively large lever arm. This means that the thrust requirement for the push rod assembly 30 is relatively small, and a single-sided push rod assembly 30 is sufficient to meet the door-opening requirements of the door 200. Based on this, setting the push rod assembly 30 on only one side effectively reduces equipment costs and the space occupied by the push rod assembly 30.

[0049] Of course, in other embodiments, if space and cost permit, the push rod assembly 30 can also be set in other positions, such as the upper and lower sides of the inner liner 40; more push rod assemblies 30 can also be set, such as push rod assemblies 30 symmetrically set on both sides of the inner liner 40, so as to avoid lateral displacement of the door body 200 in the initial opening stage.

[0050] Please refer to Figure 2 As shown, in some embodiments, the door structure includes two sets of hinge assemblies 10 respectively disposed on both sides of the inner liner 40 along the width direction of the housing 100. The hinge assembly 10 on the same side as the push rod assembly 30 is connected to the drive assembly 20. That is, only one side of the hinge assembly 10 is powered, reducing space occupation and lowering equipment costs.

[0051] Furthermore, by placing the drive assembly 20 on the same side as the push rod assembly 30, the spatial compactness of the door structure of this application can be increased. While avoiding the drive assembly 20 and the push rod assembly 30 from occupying the space of other functional modules, the wiring and maintenance difficulty of the drive motor 21 and the push rod motor 31 can also be simplified.

[0052] In some other embodiments, each of the two sets of hinge assemblies 10 may be connected to a set of drive assemblies 20, or the transmission assembly 22 of the same set of drive assemblies 20 may be connected to the two sets of hinge assemblies 10 respectively.

[0053] Please refer to Figure 2 As shown, in some embodiments, a water tank 50 is also provided inside the housing 100. The water tank 50, the push rod assembly 30, and the hinge assembly 10 connected to the drive assembly 20 are located on the same side of the inner liner 40 along the width direction of the housing 100. This further improves the spatial integration of the door structure of this application, allowing the inlet and outlet pipes of the water tank 50, the wiring of the drive motor 21, and the wiring of the push rod motor 31 to be centrally arranged on one side. This reduces the cross-regional crossing of pipelines, thereby reducing pipeline length and the possibility of failure due to cable entanglement.

[0054] In addition, during maintenance, only one side cover plate needs to be removed to maintain the water tank 50, drive assembly 20 and push rod assembly 30, effectively reducing the difficulty of maintenance.

[0055] Please refer to Figure 2 As shown, in some embodiments, the hinge assembly 10 is at least partially located below the water tank 50 along the height direction of the housing 100, and the push rod assembly 30 is located on the side of the water tank 50 away from the inner liner 40 along the width direction of the housing 100. This further improves the structural compactness and increases the utilization rate of internal space.

[0056] A second aspect of this application provides a cooking device including the aforementioned door structure.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A door structure, characterized in that, include The container (100) has a cooking space inside; A door (200) is rotatably disposed on the box (100) along the length of the box (100) for enclosing the cooking space; A hinge assembly (10) connects the housing (100) and the door (200); A drive assembly (20), disposed in the housing (100) and connected to the hinge assembly (10), is used to drive the door (200) to rotate about the length of the housing (100); A push rod assembly (30) is disposed on the housing (100) and spaced apart from the hinge assembly (10) along the height direction of the housing (100), for pushing the door (200) along the width direction of the housing (100).

2. The door structure according to claim 1, characterized in that, The hinge assembly (10) includes a tongue (11) and a housing (12). The housing (12) is fixed to the box (100). The tongue (11) is fixed to the door (200) and hinged to the housing (12). The hinge point is a rotation fulcrum. The drive assembly (20) is connected to the tongue (11), and the connection point is the drive force point; the contact point between the push rod assembly (30) and the door body (200) is the push rod force point; The distance between the rotation fulcrum and the driving force point along the height direction of the housing (100) is less than the distance between the rotation fulcrum and the push rod force point along the height direction of the housing (100).

3. The door structure according to claim 2, characterized in that, The push rod assembly (30) is located above the hinge assembly (10) along the height direction of the housing (100), and is located on the lower side of the housing (100) along the height direction of the housing (100).

4. The door structure according to claim 2, characterized in that, A resistance element is also connected between the tongue (11) and the housing (12), the resistance element being used to deform during the opening of the door (200) and elastically recover during the closing of the door (200).

5. The door structure according to claim 1, characterized in that, The push rod assembly (30) includes a push rod motor (31) and a telescopic rod (32). The telescopic rod (32) is fixed to the movable end of the push rod motor (31). The push rod motor (31) is fixed to the housing (100) and is used to drive the telescopic rod (32) to extend and retract along the width direction of the housing (100). When the door (200) is closed, the telescopic rod (32) contacts the door (200).

6. The door structure according to claim 1, characterized in that, The box (100) is provided with an inner liner (40), and the door structure includes a set of push rod assemblies (30), and the push rod assemblies (30) are arranged on one side of the inner liner (40) along the width direction of the box (100).

7. The door structure according to claim 6, characterized in that, The door structure includes two sets of hinge assemblies (10) respectively disposed on both sides of the inner liner (40) along the width direction of the box (100), wherein the hinge assembly (10) on the same side as the push rod assembly (30) is connected to the drive assembly (20).

8. The door structure according to claim 7, characterized in that, The housing (100) is also provided with a water tank (50), and the water tank (50), the push rod assembly (30) and the hinge assembly (10) connected to the drive assembly (20) are located on the same side of the inner liner (40) along the width direction of the housing (100).

9. The door structure according to claim 8, characterized in that, The hinge assembly (10) is located at least partially below the water tank (50) along the height direction of the housing (100), and the push rod assembly (30) is located on the side of the water tank (50) away from the inner liner (40) along the width direction of the housing (100).

10. A cooking device, characterized in that, Includes the door structure as described in any one of claims 1 to 9.

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