Double-layer anti-scald heat-insulating door
The double-layer anti-scalding door design solves the problems of scalding and steam leakage from the dishwasher door, achieving effective heat insulation and safe steam release, thus improving user safety and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LUIMEIK KITCHEN EQUIPMENT CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-29
AI Technical Summary
Existing dishwasher doors are prone to scalding users in high-temperature environments, have poor sealing performance, lack effective steam diversion and exhaust mechanisms, and lack temperature warning functions.
The door adopts a double-layer anti-scalding insulation structure, including a heat insulation cavity between the outer and inner door panels, a heat insulation barrier and a heat insulation air layer, combined with a double sealing structure, steam diversion and emission mechanism, and heat-sensitive color-changing warning signs, to achieve multiple heat insulation and safe steam release.
It significantly reduces the risk of burns to users, prevents steam leakage, ensures stable door panel temperature, and improves safety through automatic steam venting and warning signs.
Smart Images
Figure CN224291847U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of dishwasher technology, specifically to a double-layer anti-scalding hot air insulator. Background Technology
[0002] Existing dishwashers generate a large amount of high-temperature steam during operation. The dishwasher door panel is directly exposed to this high-temperature environment, which can easily cause the outer surface of the door panel to overheat, posing a safety hazard of burns to users. Traditional dishwasher door panels mostly use a single-layer structure, offering limited heat insulation and failing to effectively prevent the internal high temperatures from transferring outwards.
[0003] The existing dishwasher door panels still have the following problems: First, the sealing performance is poor, and high-temperature steam is easy to leak from the edge of the door panel; second, there is a lack of effective steam diversion and emission mechanisms, which easily causes steam to accumulate; third, there is a lack of temperature warning function, making it difficult for users to perceive the temperature status of the door panel in a timely manner. Utility Model Content
[0004] This application provides a double-layer anti-scalding hot air insulator, which aims to solve the problems mentioned in the prior art.
[0005] To achieve the above objectives, this application provides the following technical solution:
[0006] A double-layer anti-scalding door includes a dishwasher body, which includes a washing section and a protective section disposed above the washing section. A support base is disposed on the back side of the washing section, and the protective section is slidably connected to the support base via a sliding component. The protective section includes an outer door panel and an inner door panel, with a heat insulation cavity disposed between the outer and inner door panels. A heat insulation barrier is disposed within the heat insulation cavity between the inner and outer door panels. The heat insulation barrier includes a first heat insulation barrier and a second heat insulation barrier. The first heat insulation barrier is disposed near the inner door panel, and the second heat insulation barrier is disposed near the outer door panel. A heat insulation air layer is formed between the first and second heat insulation barriers. The heat insulation cavity is used to prevent high temperatures and steam inside the washing section from being transmitted to the outer surface of the protective section.
[0007] Preferably, the protective part is provided with a double sealing structure, including a first sealing strip provided on the edge of the outer door panel and a second sealing strip provided on the edge of the inner door panel, wherein the first sealing strip and the second sealing strip are staggered.
[0008] Preferably, the inner door panel is provided with raised guide ribs to guide steam downwards, and the end of the guide ribs is connected to an inclined water guide plate to guide the condensate or residual water attached to the inner door panel into the interior of the dishwashing section to prevent water droplets from splashing down.
[0009] Preferably, the inner surface of the outer door panel is provided with a reflective layer, which is made of metal foil material and is used to reflect heat radiation.
[0010] Preferably, the sliding assembly includes a main slide rail disposed on the support base and two sets of sliders disposed on the protective part. The two sets of sliders are slidably disposed on the main slide rail, and the sliders and the main slide rail are made of low-friction and wear-resistant material.
[0011] Preferably, a pressing protrusion is connected between the two sets of sliders, and a baffle matching the pressing protrusion is provided on the inner side of the support base. A reset spring is connected below the baffle, and a steam exhaust channel is provided on the back of the support base located on the baffle to exhaust the high-temperature steam inside the dishwashing section.
[0012] When the protective part begins to slide open from the closed state, the sliding component first drives the squeezing protrusion to move upward. During this initial stroke, the squeezing protrusion releases the restriction on the baffle, and the baffle moves upward to open the steam discharge channel, allowing the residual high-temperature steam inside the washing section to be released through the channel.
[0013] Preferably, the outer surface of the outer door panel is provided with a heat-proof warning sign. The heat-proof warning sign is made of a thermosensitive color-changing material. When the surface temperature of the outer door panel exceeds the safe temperature, the heat-proof warning sign automatically changes color to remind the user to pay attention to heat prevention.
[0014] Preferably, the outer door panel is also provided with a heat-insulating handle, which is made of a low thermal conductivity material and has a heat-insulating gasket between it and the outer door panel.
[0015] The technical effects and advantages of this application are as follows:
[0016] 1. This invention employs a double-layer door panel structure combined with a multi-layer heat insulation barrier design, forming a multi-layer heat insulation protection system. The first and second heat insulation barriers installed in the heat insulation cavity between the outer and inner door panels, along with the heat insulation air layer formed between them, constitute an effective heat blocking system, significantly reducing the risk of burns to users.
[0017] 2. The dual-sealing structure employs a staggered arrangement of the first and second sealing strips, forming a double sealing barrier. This design not only effectively prevents high-temperature steam from leaking from the door panel edges but also blocks external cold air from entering, maintaining the temperature stability inside the dishwasher. Compared to a single sealing strip design, this effectively reduces energy consumption.
[0018] 3. Through the coordinated design of the compression protrusion, baffle, reset spring, and steam exhaust channel, safe steam release is achieved when the door panel is opened. When the user begins to open the protective section, the system first automatically opens the steam exhaust channel, allowing the high-temperature steam inside to be released in an orderly manner, avoiding the risk of burns caused by sudden steam bursts. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present application;
[0020] Figure 2 This is a front view structural diagram of this application;
[0021] Figure 3 This is a side view structural diagram of this application;
[0022] Figure 4 This is a schematic diagram of the sliding component structure of this application;
[0023] Figure 5 This is a partial cross-sectional structural diagram of the outer and inner door panels of this application;
[0024] Figure 6 This is a schematic diagram of the inclined water guide plate structure of this application.
[0025] In the attached diagram: 1-Dishwasher body, 2-Washing section, 3-Protective section, 4-Support base, 5-Sliding assembly, 51-Main slide rail, 52-Slider, 6-Outer door panel, 7-Inner door panel, 8-Insulation cavity, 9-Insulation barrier, 91-First insulation barrier, 92-Second insulation barrier, 10-Insulation air layer, 11-Double sealing structure, 111-First sealing strip, 112-Second sealing strip; 12-Raised guide rib, 13-Inclined water guide plate, 14-Reflective layer, 15-Extrusion protrusion, 16-Baffle, 17-Reset spring, 18-Steam exhaust channel, 19-Anti-scalding warning sign, 20-Insulated handle, 21-Insulated pad. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0027] like Figures 1-3 As shown, the double-layer anti-scalding door provided by the present invention includes a dishwasher body 1, which includes a washing section 2 and a protective section 3. The washing section 2 is used to hold the tableware to be washed, and the protective section 3 is disposed above the washing section 2 to provide a sealing and protection function.
[0028] A support base 4 is provided on the back side of the dishwasher section 2, which provides support and a base for the protective section 3. The protective section 3 is connected to the support base 4 via a sliding component 5, and can slide open and close along a predetermined track.
[0029] like Figure 5 As shown, the protective section 3 adopts a double-layer structure, including an outer door panel 6 and an inner door panel 7. The outer door panel 6 is located on the outside and is in direct contact with the external environment; the inner door panel 7 is located on the inside and faces the interior of the dishwashing section 2. A heat insulation cavity 8 is formed between the outer door panel 6 and the inner door panel 7, which is the key space for realizing the heat insulation function.
[0030] A heat insulation barrier 9 is provided inside the heat insulation cavity 8. The heat insulation barrier 9 includes a first heat insulation barrier 91 and a second heat insulation barrier 92. The first heat insulation barrier 91 is located near the inner door panel 7, and the second heat insulation barrier 92 is located near the outer door panel 6. A heat insulation air layer 10 is formed between the two heat insulation barriers. The still air has good heat insulation performance and can effectively block heat conduction.
[0031] The thermal insulation barrier 9 can be made of various materials, such as foam plastic, fiberglass, rock wool, and other thermal insulation materials. The thickness of the first thermal insulation barrier 91 and the second thermal insulation barrier 92 can be adjusted according to actual thermal insulation requirements, and the thickness is usually between 5-20mm.
[0032] To further improve sealing performance, the protective part 3 is equipped with a double sealing structure 11. For example... Figure 2 As shown, the double sealing structure 11 includes a first sealing strip 111 and a second sealing strip 112. The first sealing strip 111 is disposed on the edge of the outer door panel 6, and the second sealing strip 112 is disposed on the edge of the inner door panel 7. The two sealing strips are staggered to form a double sealing effect, effectively preventing high-temperature steam from leaking from the edge of the door panel.
[0033] like Figure 6 As shown, raised guide ribs 12 are provided on the inner surface of the inner door panel 7. The guide ribs 12 are strip-shaped protrusions that extend along the surface of the inner door panel 7 and are used to guide steam downwards. The ends of the guide ribs 12 are connected to inclined water guide plates 13. The water guide plates 13 have a certain inclination angle, which can collect the condensate or residual water adhering to the inner door panel 7 and guide it into the interior of the dishwashing section 2, preventing water droplets from splashing outwards.
[0034] A reflective layer 14 is provided on the inner surface of the outer door panel 6. The reflective layer 14 is made of metal foil material, such as aluminum foil or stainless steel foil. The reflective layer 14 can reflect heat radiation from the inside of the washing section 2, further reducing the transfer of heat to the outer door panel 6 and enhancing the overall heat insulation effect.
[0035] like Figure 4As shown, the sliding assembly 5 includes a main slide rail 51 and sliders 52. The main slide rail 51 is fixedly mounted on the support base 4, providing guidance for the sliding of the protective part 3. Two sets of sliders 52 are provided on the protective part 3. The sliders 52 cooperate with the main slide rail 51, allowing the protective part 3 to slide smoothly along the main slide rail 51. The sliders 52 and the main slide rail 51 are made of low-friction and wear-resistant materials, such as polytetrafluoroethylene or nylon, to ensure smooth sliding and durability.
[0036] like Figure 4 As shown, a pressing protrusion 15 is connected between the two sets of sliders 52. The pressing protrusion 15 is a key component of the steam discharge mechanism. A baffle 16 matching the pressing protrusion 15 is provided on the inner side of the support base 4, and a reset spring 17 is connected below the baffle 16. A steam discharge channel 18 is provided on the support base 4 at the position on the back of the baffle 16.
[0037] When the protective section 3 is closed, the pressing protrusion 15 presses against the baffle 16, closing the steam exhaust channel 18. When the user starts to open the protective section 3, the sliding component 5 moves the pressing protrusion 15 upward. In the initial stroke, the pressing protrusion 15 first releases the pressure on the baffle 16, and the reset spring 17 pushes the baffle 16 upward, opening the steam exhaust channel 18. The residual high-temperature steam inside the washing section 2 can be safely released through the steam exhaust channel 18, preventing sudden steam bursts that could cause burns.
[0038] A heat-prevention warning label 19 is provided on the outer surface of the outer door panel 6. The heat-prevention warning label 19 is made of a thermosensitive color-changing material. When the surface temperature of the outer door panel 6 exceeds a safe temperature, such as 50°C, the heat-prevention warning label 19 will automatically change color from a normal temperature color to a warning color to remind the user to be careful to avoid burns.
[0039] The outer door panel 6 is also equipped with a heat-insulated handle 20, which is made of a low thermal conductivity material, such as plastic or wood. A heat-insulating gasket 21 is provided between the heat-insulated handle 20 and the outer door panel 6. The heat-insulating gasket 21 further blocks heat conduction and ensures that the user will not be burned when operating the handle.
[0040] The working principle of this invention is as follows:
[0041] When the dishwasher is operating, a large amount of high-temperature steam and heat are generated inside the washing section 2. Because the protective section 3 has a double-layer structure, the heat is first transferred to the inner door panel 7, and then must pass through the first heat insulation barrier 91, the heat insulation air layer 10, the second heat insulation barrier 92, and the heat insulation cavity 8 to reach the outer door panel 6. During this heat transfer process, the heat insulation barrier 9 and the heat insulation air layer 10 effectively block the heat transfer, significantly reducing the heat transfer efficiency.
[0042] Meanwhile, the reflective layer 14 reflects some of the heat radiation back into the dishwasher section 2, further reducing heat transfer outwards. The double-sealing structure 11 ensures that high-temperature steam does not leak from the door panel edges, maintaining a sealed environment inside the insulation cavity 8.
[0043] When steam condenses on the surface of the inner door panel 7, the guide ribs 12 guide the condensate downwards, and the water guide plate 13 collects this water and guides it back into the dishwashing section 2, preventing water droplets from splashing outwards.
[0044] When the user needs to open the protective section 3, the steam emission mechanism is activated first, releasing the high-temperature steam inside through the steam emission channel 18 to ensure the safety of the opening process. The anti-scalding warning sign 19 provides the user with an intuitive temperature indication, and the heat-insulated handle 20 ensures the safety of operation.
[0045] Example 1:
[0046] In one specific embodiment, both the outer door panel 6 and the inner door panel 7 are made of stainless steel with thicknesses of 2mm and 1.5mm, respectively. The insulation cavity 8 has a thickness of 30mm, the first insulation barrier 91 and the second insulation barrier 92 are both made of 10mm thick polyurethane foam, and the insulation air layer 10 has a thickness of 10mm.
[0047] The reflective layer 14 is made of aluminum foil with a thickness of 0.1 mm. The first sealing strip 111 and the second sealing strip 112 are both made of silicone material, which has good high temperature resistance and sealing performance.
[0048] The main slide rail 51 is made of stainless steel, and the slider 52 is made of polytetrafluoroethylene to ensure smooth sliding. The pressing protrusion 15 and the baffle 16 are both made of stainless steel, and the reset spring 17 is made of spring steel.
[0049] The anti-scalding warning sign 19 uses a thermochromic material that changes from green to red at 50°C. The heat-insulating handle 20 is made of polypropylene, and the heat-insulating pad 21 is made of silicone.
[0050] After testing, when the internal temperature of the dishwashing section 2 reached 80℃, the outer surface temperature of the outer door panel 6 was only 45℃, effectively preventing the risk of burns.
[0051] Example 2:
[0052] In another embodiment, to further improve the heat insulation effect, three layers of heat insulation barriers are provided inside the heat insulation cavity 8, namely a first heat insulation barrier 91, a middle heat insulation barrier, and a second heat insulation barrier 92, forming two heat insulation air layers. The thickness of each heat insulation barrier is 8 mm, and the thickness of each heat insulation air layer is 7 mm.
[0053] The guide rib 12 features a wave-shaped design, which increases the steam flow path and improves the condensation effect. The water guide plate 13 is tilted at 15° to ensure that the condensate can flow back to the washing section 2 quickly.
[0054] The steam discharge channel 18 is equipped with a regulating valve, which can automatically adjust the discharge volume according to the internal steam pressure to avoid steam discharge being too fast or too slow.
[0055] In this embodiment, under the same test conditions, the outer surface temperature of the outer door panel 6 was reduced to 42°C, further improving the heat insulation effect.
[0056] It should be noted that the above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Based on the technical solutions of the present invention, those skilled in the art can make various improvements and modifications, all of which should be included within the scope of protection of the present invention.
[0057] For example, the material of the heat insulation barrier 9 can be other heat insulation materials, such as fiberglass, rock wool, aerogel, etc.; the reflective layer 14 can be made of other metal foil materials or coating materials; the color-changing temperature of the anti-scalding warning sign 19 can be adjusted according to actual needs. This effectively solves the technical problem of heat insulation and anti-scalding of the dishwasher door panel, improving the safety and user experience of the dishwasher.
[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0059] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A double-layer anti-scalding door, comprising a dishwasher body (1), characterized in that, The dishwasher body (1) includes a washing section (2) and a protective section (3) disposed above the washing section (2). A support base (4) is provided on the back side of the washing section (2). The protective section (3) is slidably connected to the support base (4) via a sliding assembly (5). The protective section (3) includes an outer door panel (6) and an inner door panel (7). A heat insulation cavity (8) is provided between the outer door panel (6) and the inner door panel (7). The heat insulation cavity (8) between the inner door panel (7) and the outer door panel (6) is... 8) An internal heat insulation barrier (9) is provided. The heat insulation barrier (9) includes a first heat insulation barrier (91) and a second heat insulation barrier (92). The first heat insulation barrier (91) is located near the inner door panel (7), and the second heat insulation barrier (92) is located near the outer door panel (6). A heat insulation air layer (10) is formed between the first heat insulation barrier (91) and the second heat insulation barrier (92). The heat insulation cavity (8) is used to block the high temperature and steam inside the dishwashing section (2) from being transmitted to the outer surface of the protective section (3).
2. The double-layer anti-scalding door according to claim 1, characterized in that, The protective part (3) is provided with a double sealing structure (11). The double sealing structure (11) includes a first sealing strip (111) provided on the edge of the outer door panel (6) and a second sealing strip (112) provided on the edge of the inner door panel (7). The first sealing strip (111) and the second sealing strip (112) are arranged in a staggered manner.
3. The double-layer anti-scalding door according to claim 1, characterized in that, The inner door panel (7) is provided with a raised guide rib (12) to guide steam downward. The end of the guide rib (12) is connected to an inclined water guide plate (13) to guide the condensate or residual water attached to the inner door panel (7) into the interior of the dishwashing section (2) to prevent water droplets from splashing.
4. The double-layer anti-scalding door according to claim 1, characterized in that, The inner surface of the outer door panel (6) is provided with a reflective layer (14), which is made of metal foil material and is used to reflect heat radiation.
5. The double-layer anti-scalding door according to claim 1, characterized in that, The sliding assembly (5) includes a main slide rail (51) disposed on the support base (4) and two sets of sliders (52) disposed on the protective part (3). The two sets of sliders (52) are slidably disposed on the main slide rail (51). The sliders (52) and the main slide rail (51) are made of low friction and wear-resistant material.
6. The double-layer anti-scalding door according to claim 5, characterized in that, A pressing protrusion (15) is connected between the two sets of sliders (52). A baffle (16) matching the pressing protrusion (15) is provided on the inner side of the support base (4). A reset spring (17) is connected below the baffle (16). A steam exhaust channel (18) is opened on the back of the baffle (16) of the support base (4) to exhaust the high temperature steam inside the dishwashing section (2). When the protective part (3) starts to slide open from the closed state, the sliding component (5) first drives the squeezing protrusion (15) to move upward. In this initial stroke, the squeezing protrusion (15) releases the restriction on the baffle (16), and the baffle (16) moves upward to open the steam discharge channel (18), allowing the residual high temperature steam inside the dishwashing part (2) to be released through the channel.
7. The double-layer anti-scalding door according to claim 1, characterized in that, The outer surface of the outer door panel (6) is provided with a heat-proof warning sign (19). The heat-proof warning sign (19) is made of thermosensitive color-changing material. When the surface temperature of the outer door panel (6) exceeds the safe temperature, the heat-proof warning sign (19) automatically changes color to remind the user to pay attention to heat prevention.
8. The double-layer anti-scalding door according to claim 1, characterized in that, The outer door panel (6) is also provided with a heat-insulating handle (20), which is made of a low thermal conductivity material and is provided with a heat-insulating gasket (21) between it and the outer door panel (6).