Door body and cooking equipment
By combining protective edging with heat-resistant glass on the door of the cooking equipment, the problem of corrosion in high temperature and high humidity environments is solved, thereby improving structural strength and ensuring user safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GALANZ ENTERPRISES CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-12
AI Technical Summary
In high-temperature and high-humidity environments, the coating of existing cooking equipment doors powders and peels due to thermal expansion and contraction and steam penetration erosion, leading to corrosion and reduced structural strength.
The structure includes a door frame, a first door, a first heat-resistant glass, and a protective edging. The protective edging covers the outer perimeter of the first door and abuts against the door frame and the heat-resistant glass to form a physical isolation layer, avoiding direct contact with the humid and hot environment.
It effectively prevents door corrosion, improves structural strength, ensures user safety, and enhances the user experience.
Smart Images

Figure CN224219955U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooking equipment technology, specifically to a door and cooking equipment. Background Technology
[0002] Currently, most mainstream cooking appliances on the market, such as microwave ovens, steam ovens, and microwave-steam-grill models, use cold-rolled steel plates or galvanized steel plates with a spray coating process for their door structures. However, during cooking, these appliances are often in high-temperature and high-humidity environments. Under these conditions, the coating on the door surface is prone to problems due to thermal expansion and contraction, as well as the penetration and corrosion of steam. For example, the adhesion of the coating will gradually decrease, leading to powdering and peeling. This material aging problem not only causes the door to rust, seriously affecting the appearance of the appliance, but also weakens the structural strength of the door, reducing the user experience and interfering with the normal use of the appliance. Utility Model Content
[0003] In view of this, the present invention provides a door and cooking equipment to solve the problem that the coating on the surface of the door will powder and peel off due to thermal expansion and contraction and the penetration and erosion of steam, which will lead to door corrosion and weaken the structural strength of the door.
[0004] In a first aspect, the present invention provides a door body, including a door frame, a first door body, and a second door body; the door frame is adapted to be connected to a cooking cabinet; the first door body is disposed within the door frame; the second door body includes a first heat-resistant glass and a protective edging, the first heat-resistant glass being embedded in the side of the first door body near the cooking cabinet; the protective edging covers the outer periphery of the first door body, and the outer peripheral edge of the protective edging abuts against the door frame, and the inner peripheral edge abuts against the outer peripheral edge of the first heat-resistant glass.
[0005] Beneficial effects: By wrapping the protective edging around the outer periphery of the first door, with the outer edge of the protective edging abutting against the door frame and the inner edge abutting against the outer edge of the first heat-resistant glass, the exposed part of the first door is completely covered, forming an effective physical isolation layer. This completely separates the first door from direct contact with the humid and hot environment inside the cooking oven, solving the problem of corrosion of the first door.
[0006] In one optional embodiment, the door frame includes a door frame and a cover plate; the door frame is located on the side of the first door body away from the cooking cabinet; the cover plate is located on the side of the first door body close to the cooking cabinet; the first door body is located between the door frame and the cover plate; the outer periphery of the cover plate is engaged with the door frame; the inner periphery of the cover plate is engaged with the first door body and abuts against the outer periphery edge of the protective edging.
[0007] Beneficial effects: Since the outer periphery of the cover is engaged with the door frame and the inner periphery is engaged with the first door, a detachable connection is achieved between the cover, the door frame and the first door, which facilitates the installation and removal of the cover, the door frame and the first door. Since the inner periphery of the cover abuts against the outer edge of the protective edging, the first door is prevented from directly contacting the humid and hot environment inside the cooking oven at the connection between the cover and the protective edging.
[0008] In one optional embodiment, the outer periphery of the first door body is provided with a snap-fit groove; the inner periphery of the cover plate is provided with a first snap-fit plate, the first snap-fit plate extends in a direction close to the first door body and snaps into the snap-fit groove; the outer periphery of the protective edging is provided with a second snap-fit plate, the second snap-fit plate extends in a direction close to the first door body and snaps into the snap-fit groove, and abuts against the first snap-fit plate.
[0009] Beneficial effects: By setting a snap-fit groove on the outer periphery of the first door body, and having both the first snap-fit plate and the second snap-fit plate snap-fit in the snap-fit groove, the snap-fit connection of the first door body, the cover plate and the protective edge is realized. Furthermore, due to the abutment of the first snap-fit plate and the second snap-fit plate, a tight contact is achieved between the cover plate and the protective edge.
[0010] In one optional embodiment, the door frame is provided with a first receiving groove on the side facing the cooking cabinet, and the first door body is located in the first receiving groove; the outer periphery of the cover is provided with a third snap-fit plate, which extends towards the first door body; and the third snap-fit plate is located in the first receiving groove, with its two sides abutting against the outer periphery edge of the first door body and the inner wall of the first receiving groove, respectively.
[0011] Beneficial effects: By setting a third snap-fit plate, its two sides abut against the outer periphery of the first door and the inner wall of the first receiving groove, respectively, the snap-fit between the door frame and the cover is realized. Furthermore, through the cooperation of the third snap-fit plate and the first snap-fit plate, the outer periphery of the first door is completely covered, preventing it from direct contact with the humid and hot environment inside the cooking oven, thus further improving the rust prevention effect on the first door.
[0012] In one optional embodiment, the first door body has a second receiving groove on the side facing the cooking cabinet, and the first heat-resistant glass is disposed in the second receiving groove; the inner periphery of the protective edging is provided with a fourth snap-fit plate, the fourth snap-fit plate extends towards the first door body; and the fourth snap-fit plate is located in the second receiving groove, with its two sides abutting against the outer peripheral edge of the first heat-resistant glass and the inner wall of the second receiving groove, respectively.
[0013] Beneficial effects: By setting the fourth snap-fit plate, its two sides abut against the outer periphery of the first heat-resistant glass and the inner wall of the second receiving groove, and by cooperating with the second snap-fit plate, the part of the inner door panel located between the cover and the first heat-resistant glass is completely covered, so that it is not in direct contact with the humid and hot environment inside the cooking oven, thus ensuring the rust prevention effect of the first door.
[0014] In one optional embodiment, the door frame is provided with a second heat-resistant glass, and the second heat-resistant glass corresponds to the position of the first heat-resistant glass.
[0015] Beneficial effects: The second heat-resistant glass allows for direct observation of the cooking process inside the oven without opening the door; it also effectively prevents the high temperature inside the oven from being transferred to the outside of the door, reducing the surface temperature of the door and preventing users from being burned by accidentally touching it during use, thus ensuring the user's personal safety.
[0016] In one alternative embodiment, a gap is provided between the first heat-resistant glass and the second heat-resistant glass.
[0017] Beneficial effect: By setting a gap between the first heat-resistant glass and the second heat-resistant glass, it helps to form an insulating air layer.
[0018] In one alternative implementation, the first door body is welded to the protective edging or connected by screws.
[0019] Beneficial effect: By welding the first door body to the protective edging, the stability of the connection between the first door body and the protective edging is ensured.
[0020] In one alternative embodiment, the protective edging is made of stainless steel.
[0021] Beneficial effects: By using stainless steel for the protective edging, corrosion can be prevented when the protective edging comes into direct contact with the humid and hot environment inside the cooking oven.
[0022] Secondly, the present invention also provides a cooking device, including a cooking chamber and the aforementioned door; the aforementioned door is connected to the cooking chamber.
[0023] Since the cooking equipment includes a door and has the same effect as the door described above, it will not be repeated here. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the door structure according to an embodiment of the present utility model;
[0026] Figure 2 This is a cross-sectional schematic diagram of the door body according to an embodiment of the present utility model;
[0027] Figure 3 for Figure 2 A magnified view of part A in the diagram;
[0028] Figure 4 This is a schematic diagram of the structure of the first door body and the protective edging according to an embodiment of the present utility model;
[0029] Figure 5 This is a schematic diagram of the protective edging structure according to an embodiment of the present utility model.
[0030] Explanation of reference numerals in the attached figures:
[0031] 1. Door frame; 11. Door frame; 111. First receiving groove; 112. Second heat-resistant glass; 113. Locking block; 12. Cover plate; 121. First locking plate; 122. Third locking plate; 123. Locking groove; 2. First door body; 21. Locking groove; 22. Second receiving groove; 3. First heat-resistant glass; 4. Protective edging; 41. Second locking plate; 42. Fourth locking plate. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0033] The following is combined Figures 1 to 5 The following describes embodiments of the present invention.
[0034] According to an embodiment of the present invention, a door body is provided, including a door frame 1, a first door body 2, a first heat-resistant glass 3, and a protective edging 4; the door frame 1 is adapted to be connected to a cooking cabinet; the first door body 2 is disposed within the door frame 1; the second door body includes the first heat-resistant glass 3 and the protective edging 4, the first heat-resistant glass 3 being embedded in the side of the first door body 2 near the cooking cabinet; the protective edging 4 covers the outer periphery of the first door body 2, and the outer peripheral edge of the protective edging 4 abuts against the door frame 1, and the inner peripheral edge abuts against the outer peripheral edge of the first heat-resistant glass 3.
[0035] By covering the outer periphery of the first door body 2 with the protective edging 4, and with the outer periphery of the protective edging 4 abutting against the door frame 1 and the inner periphery abutting against the outer periphery of the first heat-resistant glass 3, the exposed part of the first door body 2 is completely covered, forming an effective physical isolation layer. This completely separates the first door body 2 from direct contact with the humid and hot environment inside the cooking oven, thus solving the problem of corrosion of the first door body 2.
[0036] In one embodiment, the door frame 1 includes a door frame 11 and a cover plate 12; the door frame 11 is located on the side of the first door 2 away from the cooking cabinet; the cover plate 12 is located on the side of the first door 2 close to the cooking cabinet; the first door 2 is located between the door frame 11 and the cover plate 12; the outer periphery of the cover plate 12 is engaged with the door frame 11; the inner periphery of the cover plate 12 is engaged with the first door 2 and abuts against the outer periphery edge of the protective edging 4.
[0037] Since the outer periphery of the cover plate 12 is engaged with the door frame 11 and the inner periphery is engaged with the first door body 2, a detachable connection is achieved between the cover plate 12, the door frame 11 and the first door body 2, which facilitates the installation and removal of the cover plate 12, the door frame 11 and the first door body 2. Since the inner periphery of the cover plate 12 abuts against the outer periphery edge of the protective edging 4, the first door body 2 is prevented from directly contacting the humid and hot environment inside the cooking oven at the connection between the cover plate 12 and the protective edging 4.
[0038] In a specific implementation, the first heat-resistant glass 3, the protective edging 4, and the cover 12 together form a physical protective barrier, completely isolating the first door 2 from the humid and hot environment inside the cooking cabinet.
[0039] In a specific embodiment, the first door body 2 includes a mounting portion for installing the first heat-resistant glass 3 and an exposed portion exposed between the door frame 1 and the first heat-resistant glass 3. A protective edging 4 covers and shields the exposed portion of the first door body 2. A first viewing window is provided on the mounting portion, and the first viewing window is made of transparent material.
[0040] In one embodiment, the outer periphery of the first door body 2 is provided with a snap-fit groove 21; the inner periphery of the cover plate 12 is provided with a first snap-fit plate 121, the first snap-fit plate 121 extends in a direction close to the first door body 2 and snaps into the snap-fit groove 21; the outer periphery of the protective edging 4 is provided with a second snap-fit plate 41, the second snap-fit plate 41 extends in a direction close to the first door body 2 and snaps into the snap-fit groove 21, and abuts against the first snap-fit plate 121.
[0041] By setting a snap-fit groove 21 on the outer periphery of the first door body 2, and snap-fit plates 121 and 41 are both snapped into the snap-fit groove 21, the snap-fit connection of the first door body 2, the cover plate 12 and the protective edge 4 is realized. Furthermore, due to the abutment of the first snap-fit plate 121 and the second snap-fit plate 41, a tight contact is achieved between the cover plate 12 and the protective edge 4.
[0042] In one embodiment, the door frame 11 is provided with a first receiving groove 111 on the side facing the cooking cabinet, and the first door 2 is located in the first receiving groove 111; the outer periphery of the cover plate 12 is provided with a third snap-fit plate 122, which extends toward the first door 2; and the third snap-fit plate 122 is located in the first receiving groove 111, with its two sides abutting against the outer periphery edge of the first door 2 and the inner wall of the first receiving groove 111, respectively.
[0043] By setting a third snap-fit plate 122, which abuts against the outer periphery of the first door body 2 and the inner wall of the first receiving groove 111 on both sides, the snap-fit between the door frame 11 and the cover plate 12 is realized. Furthermore, by cooperating with the third snap-fit plate 122 and the first snap-fit plate 121, the outer periphery of the first door body 2 is completely covered, preventing it from direct contact with the humid and hot environment inside the cooking oven, thus further improving the rust prevention effect on the first door body 2.
[0044] In a specific embodiment, a locking block 113 protrudes from the inner wall of the first receiving groove 111, and a locking groove 123 is provided on the third locking plate 122. When the third locking plate 122 is inserted into the first receiving groove 111, the locking block 113 is locked in the locking groove 123. Specifically, multiple locking grooves 123 can be provided, and the multiple locking grooves 123 are arranged sequentially at intervals along the length direction of the third locking plate 122, and each locking groove 123 corresponds to a locking block 113.
[0045] In one embodiment, the first door 2 is provided with a second receiving groove 22 on the side facing the cooking cabinet, and the first heat-resistant glass 3 is disposed in the second receiving groove 22; the inner periphery of the protective edging 4 is provided with a fourth snap-fit plate 42, the fourth snap-fit plate 42 extends towards the first door 2; and the fourth snap-fit plate 42 is located in the second receiving groove 22, with its two sides abutting against the outer peripheral edge of the first heat-resistant glass 3 and the inner wall of the second receiving groove 22, respectively.
[0046] By setting a fourth snap-fit plate 42, its two sides abut against the outer periphery of the first heat-resistant glass 3 and the inner wall of the second receiving groove 22 respectively. And by cooperating with the second snap-fit plate 41, the part of the inner door panel located between the cover plate 12 and the first heat-resistant glass 3 is completely covered, so that it is not in direct contact with the humid and hot environment inside the cooking oven, thus ensuring the anti-rust effect on the first door 2.
[0047] Specifically, the mounting part is located inside the second receiving groove 22.
[0048] In a specific implementation, by setting a second snap-fit plate 41 on the protective edge 4 to cooperate with the snap-fit groove 21 on the first door body 2, and by setting a fourth snap-fit plate 42 to cooperate with the second receiving groove 22 on the first door body 2, the protection of the first door body 2 is achieved by using a socket assembly process without changing the structure of the first door body 2 and the door frame 1. The processing and assembly are simple and the production efficiency is high.
[0049] In one embodiment, the door frame 11 is provided with a second heat-resistant glass 112, and the second heat-resistant glass 112 corresponds to the position of the first heat-resistant glass 3.
[0050] The second heat-resistant glass 112 allows for direct observation of the cooking process inside the cooking oven without opening the door; it also effectively prevents the high temperature inside the cooking oven from being transferred to the outside of the door, reducing the surface temperature of the door and preventing users from being burned by accidentally touching the door during use, thus ensuring the user's personal safety.
[0051] In one embodiment, a gap is provided between the first heat-resistant glass 3 and the second heat-resistant glass 112.
[0052] By creating a gap between the first heat-resistant glass 3 and the second heat-resistant glass 112, it is helpful to form a heat-insulating air layer.
[0053] In a specific implementation, a second viewing window is provided on the door frame 11, and a second heat-resistant glass 112 is installed at the second viewing window.
[0054] In a specific implementation, a handle, knob, and indicator light are provided on the side of the door frame 11 away from the cooking cabinet.
[0055] In one embodiment, the first door body 2 is welded to the protective edging 4 or connected by screws.
[0056] By welding the first door body 2 to the protective edging 4, the stability of the connection between the first door body 2 and the protective edging 4 is ensured.
[0057] In a specific implementation, the first door body 2 and the protective edging 4 are connected by laser spot welding.
[0058] In one embodiment, the protective edging 4 is made of stainless steel.
[0059] By making the protective edging 4 out of stainless steel, corrosion of the protective edging 4 can be prevented when it comes into direct contact with the humid and hot environment inside the cooking oven.
[0060] In specific implementations, there are no restrictions on the stainless steel material; the protective edging 4 can be made of 304 stainless steel.
[0061] Depend on Figure 1 As shown, the structure of the first door body 2 is relatively complex. When considering the material selection for the first door body 2, if stainless steel is directly used in its manufacturing, structural defects are easily caused in the critical stamping process due to the limited ductility of stainless steel. For example, during the mesh punching operation, local stress concentration may cause the punch to break under the excessive load; intergranular cracks may appear in the deep drawing area when punching mesh, which seriously affects the quality and performance of the first door body 2. Therefore, stainless steel is not suitable for the first door body 2.
[0062] According to an embodiment of the present invention, another aspect provides a cooking device, including a cooking chamber and the aforementioned door; the aforementioned door is connected to the cooking chamber.
[0063] In specific implementations, the cooking enclosure can be a microwave oven, a steam oven, or a microwave-steam-grill model.
[0064] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A door body, characterized in that, include: Door frame (1), suitable for connection to cooking cabinet; The first door (2) is set inside the door frame (1); The second door includes a first heat-resistant glass (3) and a protective edging (4), wherein the first heat-resistant glass (3) is embedded in the side of the first door (2) near the cooking cabinet; The protective edging (4) covers the outer periphery of the first door body (2), and the outer periphery edge of the protective edging (4) abuts against the door frame (1), and the inner periphery edge abuts against the outer periphery edge of the first heat-resistant glass (3).
2. The door body according to claim 1, characterized in that, The door frame (1) includes: The door frame (11) is located on the side of the first door (2) away from the cooking cabinet; A cover (12) is located on the side of the first door (2) near the cooking cabinet; the first door (2) is located between the door frame (11) and the cover (12); the outer periphery of the cover (12) is engaged with the door frame (11); the inner periphery of the cover (12) is engaged with the first door (2) and abuts against the outer periphery edge of the protective edging (4).
3. The door body according to claim 2, characterized in that, The outer periphery of the first door body (2) is provided with a snap-fit groove (21); the inner periphery of the cover plate (12) is provided with a first snap-fit plate (121), the first snap-fit plate (121) extends along the direction close to the first door body (2) and snaps into the snap-fit groove (21); the outer periphery of the protective edging (4) is provided with a second snap-fit plate (41), the second snap-fit plate (41) extends along the direction close to the first door body (2) and snaps into the snap-fit groove (21), and abuts against the first snap-fit plate (121).
4. The door body according to claim 2, characterized in that, The door frame (11) has a first receiving groove (111) on the side facing the cooking box, and the first door (2) is located in the first receiving groove (111); the outer periphery of the cover plate (12) has a third snap-fit plate (122), which extends towards the first door (2); and the third snap-fit plate (122) is located in the first receiving groove (111), with its two sides abutting against the outer periphery of the first door (2) and the inner wall of the first receiving groove (111), respectively.
5. The door body according to any one of claims 1 to 4, characterized in that, The first door (2) is provided with a second receiving groove (22) on the side facing the cooking box, and the first heat-resistant glass (3) is disposed in the second receiving groove (22); the inner periphery of the protective edging (4) is provided with a fourth snap-fit plate (42), the fourth snap-fit plate (42) extends towards the first door (2); and the fourth snap-fit plate (42) is located in the second receiving groove (22), and its two sides abut against the outer periphery edge of the first heat-resistant glass (3) and the inner wall of the second receiving groove (22) respectively.
6. The door body according to any one of claims 2 to 4, characterized in that, The door frame (11) is provided with a second heat-resistant glass (112), and the second heat-resistant glass (112) corresponds to the position of the first heat-resistant glass (3).
7. The door body according to claim 6, characterized in that, A gap is provided between the first heat-resistant glass (3) and the second heat-resistant glass (112).
8. The door body according to any one of claims 1 to 4 or 7, characterized in that, The first door body (2) is welded to the protective edging (4) or connected by screws.
9. The door body according to any one of claims 1 to 4 or 7, characterized in that, The protective edging (4) is made of stainless steel.
10. A cooking device, characterized in that, include: Cooking cabinet; The door body according to any one of claims 1 to 9 is connected to the cooking cabinet body.