Door hook limiting structure and cooking equipment

By installing a limiting plate in the hole of the microwave oven door hook, the problem of collision caused by door hook wobbling is solved, ensuring that the door hook is aligned with the cavity, thus improving the appearance and functional stability of the microwave oven.

CN223621401UActive Publication Date: 2025-12-02GUANGDONG GALANZ ENTERPRISES CO LTD +2
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Patent Information

Application Number
CN202423138436.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-12-02
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing microwave oven door hooks are prone to wobbling during operation, causing them to collide with the front panel of the microwave oven cavity, resulting in damage to the appearance, deformation, loosening of electronic components, and an increased risk of microwave leakage.

Method used

A limiting plate is installed in the hole of the door hook to limit the door hook in the left and right directions, prevent it from shaking, and ensure that the door hook is aligned with the cavity assembly position.

Benefits of technology

It effectively avoids collisions between the door hook and the front panel of the cavity, maintains the integrity of the appearance, prevents electronic components from loosening, reduces the risk of microwave leakage, and ensures the normal operation of the microwave oven.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a door hook limiting structure and cooking equipment, the door hook limiting structure comprises a shielding plate and a door hook, the shielding plate is provided with a hole body, the door hook penetrates through the hole body and can move up and down relative to the hole body, and a limiting plate is arranged in the hole body and used for limiting the door hook in the left-right direction; according to the door hook limiting structure and the cooking equipment, the door hook is limited in the left-right direction through the additionally-arranged limiting plate on the basis that the up-down moving mode in the prior art is kept, the situation that the door hook shakes in the left-right direction in the door assembly closing process is avoided, and when the door assembly is closed, the door hook does not shake in the left-right direction; the door hook can be accurately aligned with the assembly position on the cavity, and the situation that the door hook collides with the front plate of the cavity due to left-right shaking is avoided.
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Description

Technical Field

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

[0002] Cooking equipment, taking microwave ovens as an example, is an indispensable appliance in people's daily lives, and it comes in a variety of structural forms. With the continuous improvement of industrial design and the application of new technologies, materials, and shapes in microwave ovens, not only have various types of microwave ovens been developed, but their structures are also being continuously optimized.

[0003] During microwave oven use, the door cover plays a crucial role in preventing microwave leakage and protecting user safety. Traditional door covers may become misaligned or fail to close properly due to accidental impacts, excessive opening or closing, or improper installation. This can increase the risk of microwave leakage and endanger the user's health.

[0004] Additionally, as attached Figure 1-4 As shown, for the cover in the prior art, the door hook 4 of the door assembly 1 often penetrates the hole 51 of the cover 5. The door hook 4 can move in the hole 51 as the door assembly 1 opens or closes, so as to realize the smooth closing or opening of the door assembly 1.

[0005] However, existing baffles often fail to provide adequate limits for the movement of the door hook 4, causing the door hook 4 to wobble during movement. This results in the door hook 4 failing to accurately align with the assembly position of the microwave oven cavity 3, making it easy for the door hook 4 to collide with the front panel of the cavity 3 during the closing process of the door assembly 1.

[0006] The door hook 4 impacting the front panel will cause the following damage:

[0007] 1. Visual damage: The most obvious sign is scratches and dents on the front panel surface. This is especially true for microwave ovens with exterior coatings or decorative panels, where impacts can damage the integrity of the coating and affect their appearance.

[0008] 2. Long-term impacts may cause the front panel to deform, making the overall appearance of the microwave oven uneven and the gaps larger.

[0009] 3. The door hook itself may deform during an impact. A deformed door hook may fail to properly engage with the oven door, resulting in the oven door not closing tightly and increasing the risk of microwave leakage.

[0010] 4. The vibrations from the impact may loosen the electronic components inside the microwave oven. For example, the solder joints on the circuit board may crack or detach due to the vibration, affecting the normal operation of the microwave oven, such as causing abnormal heating or malfunctioning control functions.

[0011] 5. If the microwave oven cover or related moving parts are damaged due to impact, it will affect the normal path of heat dissipation inside the microwave oven, which may cause local overheating and adversely affect the service life of key heating components such as the magnetron.

[0012] This application is submitted in order to solve the problems of door hooks easily wobbling and hitting the front panel. Utility Model Content

[0013] In view of this, the present invention aims to propose a door hook limiting structure and cooking equipment to solve the problems of easy shaking of the door hook and door hook hitting the front panel in the prior art.

[0014] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0015] A door hook limiting structure is installed on a door assembly. The door hook limiting structure includes a cover plate and a door hook. The cover plate has a hole, and the door hook passes through the hole and can move relative to the hole in the vertical direction. A limiting plate is provided in the hole for limiting the door hook in the horizontal direction.

[0016] Furthermore, the limiting plate is disposed at the upper or lower end of the hole, and a limiting opening is formed between the limiting plate and the inner wall of the hole, allowing the door hook to move into the limiting opening.

[0017] Furthermore, the door hook is interference-fitted with the limiting port.

[0018] Furthermore, in the direction along which the door hook enters the limiting port, the limiting plate includes a guide section and a limiting section arranged sequentially; the limiting port is formed between the limiting section and the inner wall of the hole, and a guide port is formed between the guide section and the inner wall of the hole; the guide port is connected to the limiting port.

[0019] Furthermore, the width of the guide opening gradually decreases in the direction along which the door hook enters the limiting opening.

[0020] Furthermore, a transition section is provided between the guide section and the limiting section, and the side of the transition section facing the guide opening is curved.

[0021] Furthermore, the length of the limiting segment in the vertical direction is denoted as H1, the width of the limiting segment in the horizontal direction is denoted as W1, the maximum length of the hole in the vertical direction is denoted as H2, and the maximum width of the hole in the horizontal direction is denoted as W2; the ratio of H1 to H2 is 0.1-0.2, and the ratio of W1 to W2 is 0.09-0.15.

[0022] A cooking device includes a door assembly and a cavity, wherein the door assembly is connected to the cavity and the door assembly is provided with a door hook limiting structure.

[0023] Furthermore, the cooking device includes a control box, which is fixedly connected to the cavity.

[0024] Compared with the prior art, the door hook limiting structure and cooking equipment described in this utility model have the following advantages:

[0025] The present invention discloses a door hook limiting structure and cooking device. By setting a door hook limiting structure, the door hook, while maintaining the up-and-down movement mode of the prior art, uses an additional limiting plate to limit the door hook in the left-right direction, avoiding left-right swaying of the door hook during the closing process of the door assembly. This ensures that the door hook can be accurately aligned with the assembly position on the cavity when the door assembly is closed, preventing the door hook from colliding with the front plate of the cavity due to left-right swaying. Attached Figure Description

[0026] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of cooking equipment in the prior art;

[0028] Figure 2 A schematic diagram of the structure of a cooking device in the prior art from another perspective;

[0029] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0030] Figure 4 This is a schematic diagram of the structure of a shield in the prior art;

[0031] Figure 5 This is a schematic diagram of the structure of the cooking equipment described in an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the door hook limiting structure in the open state of the door assembly according to an embodiment of the present utility model;

[0033] Figure 7 For the embodiments of this utility model in Figure 6 A magnified view of a section at point B in the middle;

[0034] Figure 8 This is a schematic diagram of a door hook limiting structure in the closed state of the door assembly, as described in an embodiment of this utility model.

[0035] Figure 9 For the embodiments of this utility model in Figure 8 A magnified view of a section at point C;

[0036] Figure 10 This is a schematic diagram of the structure of the shield described in an embodiment of the present utility model;

[0037] Figure 11 For the embodiments of this utility model in Figure 10 A magnified view of a section at point D.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Door assembly; 2. Control box; 3. Cavity; 4. Door hook; 5. Cover plate; 51. Hole; 52. Limiting port; 53. Guide port; 6. Limiting plate; 61. Guide section; 62. Limiting section; 63. Transition section. Detailed Implementation

[0040] The inventive concepts of this disclosure will be described below using terminology commonly used by those skilled in the art to convey the essence of their work to others skilled in the art. However, these inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments described herein.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. Directional terms used in this application, such as up / down and left / right, are all indicated by the appendix. Figure 6 The coordinates pointed to in the image are used as the reference.

[0042] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] To address the issues of door hook wobbling and impact with the front panel in existing technologies, this embodiment proposes a door hook limiting structure, as shown in the attached diagram. Figure 5-11 As shown, the door hook limiting structure is installed on the door assembly 1; the door hook limiting structure includes a cover plate 5 and a door hook 4. The cover plate 5 is provided with a hole 51, and the door hook 4 passes through the hole 51 and can move relative to the hole 51 in the vertical direction. A limiting plate 6 is provided in the hole 51 to limit the door hook 4 in the horizontal direction.

[0044] Therefore, by setting a door hook limiting structure, this application enables the door hook 4 to maintain the up-and-down movement mode in the prior art, and uses an additional limiting plate 6 to limit the door hook 4 in the left-right direction, thereby preventing the door hook 4 from wobbling in the left-right direction during the closing of the door assembly 1. This ensures that the door hook 4 can be accurately aligned with the assembly position on the cavity 3 when the door assembly 1 is closed, and prevents the door hook 4 from colliding with the front plate of the cavity 3 due to left-right wobbling.

[0045] Since the door hook 4 moves up and down in the hole body 51, the hole body 51 is a long hole, such as a rectangular hole or an elliptical hole.

[0046] When the door assembly 1 is in the closing motion, the door hook 4 moves downward or upward; correspondingly, when the door assembly 1 is in the opening motion, the door hook 4 moves in the opposite direction, i.e., upward or downward. The technical aspects related to the opening and closing of the door assembly 1 and the movement of the door hook 4 can be directly applied using existing technology and will not be elaborated upon.

[0047] The limiting plate 6 is disposed at the upper or lower end of the hole 51, and a limiting opening 52 is formed between the limiting plate 6 and the inner wall of the hole 51. The door hook 4 can move into the limiting opening 52. Specifically, during the closing process of the door assembly 1, the door hook 4 moves toward the limiting opening 52 until the door hook 4 is fully inserted into the limiting opening 52. This allows the door hook 4 to be limited in the left and right directions by the limiting opening 52 during the closing process, preventing the door hook 4 from wobbling in the left and right directions during the closing process. Correspondingly, it also prevents the door hook 4 from colliding with the front plate of the cavity 3 due to left and right wobbling.

[0048] Preferably, the door hook 4 is interference-fitted with the limiting port 52, which greatly improves the limiting ability of the limiting port 52 to limit the door hook 4, and prevents any wobbling of the door hook 4 in the left and right directions during the closing process of the door assembly 1.

[0049] In the direction along which the hook 4 enters the limiting opening 52 (i.e., upward or downward), the limiting plate 6 includes a guide section 61 and a limiting section 62 arranged sequentially; the limiting opening 52 is formed between the limiting section 62 and the inner wall of the hole 51, and a guide opening 53 is formed between the guide section 61 and the inner wall of the hole 51; the guide opening 53 communicates with the limiting opening 52. Thus, by setting the guide section 61 and thereby forming the guide opening 53, the hook 4 can enter the limiting opening 52 under the guidance of the guide opening 53, avoiding the hook 4 failing to enter the limiting opening 52 normally due to misalignment or slight deviation.

[0050] Along the direction from which the hook 4 enters the limiting opening 52, the left-right width (i.e., the width dimension in the left-right direction) of the guide opening 53 gradually decreases until it is equal to the left-right width of the limiting opening 52. Thus, as the hook 4 enters the relatively narrow limiting opening 52 from a larger opening, the gradually decreasing guide opening 53 guides the hook 4 to enter the limiting opening 52 more smoothly. Correspondingly, the side of the guide segment 61 facing the guide opening 53 is inclined, forming a gradually decreasing guide opening 53 within the hole 51.

[0051] A transition section 63 is provided between the guide section 61 and the limiting section 62. The side of the transition section 63 facing the guide opening 53 is curved, so that when the door hook 4 enters the limiting opening 52 from the guide opening 53, the curved transition guide allows the door hook 4 to smoothly enter the limiting opening 52.

[0052] Since the limiting port 52 directly limits the door hook 4, in order to ensure that there is sufficient limiting space at the limiting port 52, or in other words, that the limiting port 52 and the door hook 4 have sufficient interference fit contact area, this application further limits the spatial dimension relationship at the limiting section 62, as shown in the attached figure. Figure 11 As shown, to avoid confusion with structural lines, attached Figure 11 The dimension markers are all shown in red.

[0053] Let H1 be the length of the limiting segment 62 in the vertical direction, W1 be the width of the limiting segment 62 in the horizontal direction, H2 be the maximum length of the hole 51 in the vertical direction, and W2 be the maximum width of the hole 51 in the horizontal direction; the ratio of H1 to H2 is 0.1-0.2, and the ratio of W1 to W2 is 0.09-0.15. By setting the relevant dimensional relationships of the limiting segment 62, the resulting limiting opening 52 has a certain width and height. This satisfies the requirement for a proper interference fit between the limiting opening 52 and the door hook 4, while also providing sufficient space for the limiting of the door hook 4, ensuring that the door hook 4 will not wobble in the horizontal direction during the closing process of the door assembly 1.

[0054] This application further proposes a cooking device, which includes a door assembly 1 and a cavity 3. The door assembly 1 is connected to the cavity 3. The door assembly 1 is provided with the door hook limiting structure, so that during the closing process of the cooking device, the door hook 4 can be accurately aligned with the mounting position on the cavity 3, preventing the door hook 4 from colliding with the front plate of the cavity 3 due to left and right swaying.

[0055] The cooking device can be a microwave oven or other cooking device with a door assembly 1.

[0056] One side of the door assembly 1 is hinged to the cavity 3, and the other side is engaged with the cavity 3 via a door hook 4. As the door assembly 1 rotates and the door hook 4 moves, it is used to open and close the inner cavity of the cooking equipment. Correspondingly, when the door hook 4 enters the limiting port 52 and the door assembly 1 is closed, the door hook 4 will not wobble in any left or right direction, and can accurately and smoothly enter the cavity 3 and contact the internal micro switch, thereby closing the door assembly 1.

[0057] The cooking device also includes a control box 2, which is fixedly connected to the cavity 3.

[0058] In this invention, any cooking device may include the door hook limiting structure described in this embodiment. Based on the technical content provided in this embodiment, the cooking device also includes conventional components such as a housing and electronic control components. Since these conventional components are all prior art, they will not be described in detail here.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A door hook limiting structure, characterized in that, The door hook limiting structure is installed on the door assembly (1); the door hook limiting structure includes a cover plate (5) and a door hook (4). The cover plate (5) is provided with a hole (51). The door hook (4) passes through the hole (51) and can move relative to the hole (51) in the vertical direction. A limiting plate (6) is provided in the hole (51) for limiting the door hook (4) in the horizontal direction.

2. The door hook limiting structure according to claim 1, characterized in that, The limiting plate (6) is set at the upper or lower end of the hole (51), and a limiting opening (52) is formed between the limiting plate (6) and the inner wall of the hole (51). The door hook (4) can move into the limiting opening (52).

3. The door hook limiting structure according to claim 2, characterized in that, The door hook (4) is interference-fitted with the limiting port (52).

4. The door hook limiting structure according to claim 2, characterized in that, In the direction along the door hook (4) into the limiting port (52), the limiting plate (6) includes a guide section (61) and a limiting section (62) arranged in sequence; the limiting port (52) is formed between the limiting section (62) and the inner wall of the hole (51), and a guide port (53) is formed between the guide section (61) and the inner wall of the hole (51); the guide port (53) is connected to the limiting port (52).

5. A door hook limiting structure according to claim 4, characterized in that, The width of the guide opening (53) gradually decreases in the direction along which the door hook (4) enters the limiting opening (52).

6. The door hook limiting structure according to claim 4, characterized in that, A transition section (63) is provided between the guide section (61) and the limiting section (62), and the side of the transition section (63) facing the guide opening (53) is an arc surface.

7. A door hook limiting structure according to claim 4, characterized in that, The length of the limiting segment (62) in the vertical direction is denoted as H1, the width of the limiting segment (62) in the horizontal direction is denoted as W1, the maximum length of the hole (51) in the vertical direction is denoted as H2, and the maximum width of the hole (51) in the horizontal direction is denoted as W2; the ratio of H1 to H2 is 0.1-0.2, and the ratio of W1 to W2 is 0.09-0.

15.

8. A cooking device, characterized in that, The cooking device includes a door assembly (1) and a cavity (3), the door assembly (1) being connected to the cavity (3), and the door assembly (1) being provided with a door hook limiting structure as described in any one of claims 1-7.

9. A cooking apparatus according to claim 8, characterized in that, The cooking device includes a control box (2), which is fixedly connected to the cavity (3).