Sealing and heat-insulating furnace door structure of microwave hot blast stove
By introducing multiple layers of insulation and sealing strips into the microwave hot air furnace door, the problem of poor heat insulation in traditional furnace doors is solved, the surface temperature of the furnace door is reduced, and safety and heat insulation effects are ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU FRIGO CATERING EQUIP
- Filing Date
- 2025-08-25
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional microwave hot air ovens have poor heat insulation in their doors, making workers prone to burns at high temperatures.
The furnace door structure incorporates a multi-layer insulation layer and sealing design, including a first insulation layer embedded in the outer shell and a second insulation layer inside the inner shell. A sealing strip is added to the surface of the inner shell to prevent microwave and heat leakage. The insulation layer uses insulation cotton material and is covered with tin foil to enhance the heat insulation effect.
It effectively prevents microwave and heat leakage, keeping the surface temperature of the door casing close to room temperature and preventing workers from getting burned.
Smart Images
Figure CN224262214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microwave hot air furnace technology, specifically to a sealed and heat-insulating furnace door structure for a microwave hot air furnace. Background Technology
[0002] A microwave hot air furnace is a composite industrial equipment that combines microwave heating technology with a traditional hot air circulation system. Its core feature is that it uses microwave energy to heat the gas medium quickly and evenly, while achieving efficient heat transfer through a heat exchange system. The furnace door structure is used to seal the heat inside the furnace, thereby increasing the heating effect inside the furnace.
[0003] For example, Chinese Patent CN201620338916.2 discloses a microwave hot air furnace door that solves the problems of excessive microwave leakage and the generation of high-order waves at high temperatures. It includes a door shell, an inner door liner, an inner door liner plug, a door sealing strip, a shielded door support, and a shielded door. The inner door liner plug is connected to the inner door liner, which is snapped into and secured to the door shell. The shielded door support is installed on the inner door liner plug. A door sealing strip is installed between the inner door liner plug and the shielded door support. The shielded door is installed on the shielded door support. Microwave choke grooves are formed around the shielded door and the shielded door support, effectively suppressing microwave leakage. This invention has a simple structure and process, and can be used in both microwave ovens and microwave ovens. It will not cause excessive microwave leakage or the generation of high-order waves due to deformation at high temperatures. It has wide applicability and is safe and reliable. However, traditional oven door structures are simple and have poor heat insulation during use. The surface temperature of the oven door is high during operation, which can easily cause burns to workers. Therefore, a sealed and heat-insulating oven door structure for microwave hot air ovens is proposed to solve the above problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a sealed and insulated oven door structure for microwave hot air furnaces, which has the advantages of effective heat insulation and solves the problem of poor heat insulation performance in traditional methods.
[0006] (II) Technical Solution
[0007] To achieve the aforementioned effective heat insulation purpose, this utility model provides the following technical solution: a microwave hot air furnace door sealing and heat insulation structure, comprising:
[0008] A door outer shell, an inner door shell installed on the inner side of the door outer shell, a first insulation layer embedded inside the door outer shell, and a second insulation layer provided on one side of the inner door shell;
[0009] A door stop microwave plate is fixedly installed on the outer surface of the other side of the inner shell of the door, and a support is fixedly installed inside the door stop microwave plate.
[0010] Preferably, a door heat insulation plate is fixedly installed on one side of the inner shell of the door, a door heat-conducting aluminum plate is fixedly installed on one side of the door heat insulation plate, and the outer surface of the door heat-conducting aluminum plate is fitted with an edge seal. A door sealing plate is fixedly installed on one side of the door heat-conducting aluminum plate, and one side of the door sealing plate is fixedly connected to the support by fixing bolts. The door microwave blocking plate is embedded in the inner shell of the door, blocking most of the microwave and heat leakage to the outside. The door heat insulation plate and the door heat-conducting aluminum plate are provided in the inner shell of the door to improve the heat insulation effect. The edge of the door frame is sealed to the surface of the inner shell of the door to prevent microwave and heat leakage.
[0011] Preferably, a rectangular frame is provided on one outer surface of the inner shell of the door, and the second insulation layer is provided inside the frame.
[0012] Preferably, both the first and second insulation layers are made of insulation cotton, and the surface temperature of the door shell is close to room temperature, so it will not cause harm to customers.
[0013] Preferably, tin foil is provided on both sides of the insulation cotton to improve the heat insulation effect of the first insulation layer and the second insulation layer.
[0014] Preferably, a handle is fixedly installed on one outer side of the door shell, and the furnace door is opened and closed by gripping the handle.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a sealed and insulated furnace door structure for a microwave hot air furnace, which has the following beneficial effects:
[0017] By adding a sealing strip along the edge of the door frame to cover the surface of the inner casing, microwave and heat leakage is prevented. Furthermore, a first insulation layer and a second insulation layer are installed between the outer and inner casings of the door. Both the first and second insulation layers use a double-sided aluminum foil insulation cotton structure, which improves the heat insulation effect. The surface temperature of the door casing is close to room temperature and will not cause harm to customers. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is an exploded view of the overall structure of this utility model;
[0020] Figure 3 This is an exploded view of the inner shell structure of the door of this utility model;
[0021] Figure 4 This is a cross-sectional view of the overall structure of this utility model.
[0022] In the diagram: 1. Door outer shell; 11. Handle; 12. First insulation layer; 2. Door inner shell; 21. Door heat insulation board; 22. Door heat-conducting aluminum plate; 23. Edge sealing; 24. Door sealing plate; 25. Second insulation layer; 3. Door stop microwave plate; 31. Support. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4 The present invention provides the following technical solution: a microwave hot air furnace sealed and insulated furnace door structure, including a door shell 1, an inner door shell 2 installed on the inner side of the door shell 1, a first heat insulation layer 12 embedded inside the door shell 1, a second heat insulation layer 25 provided on one side of the inner door shell 2, and a handle 11 fixedly installed on the outer side of one side of the door shell 1, so that the furnace door can be opened and closed by holding the handle 11;
[0025] In this embodiment, a rectangular frame is provided on one outer surface of the inner shell 2 of the door, and the second insulation layer 25 is provided inside the frame.
[0026] Both the first insulation layer 12 and the second insulation layer 25 are made of insulation cotton. The surface temperature of the door shell 1 is close to room temperature, so it will not harm customers. Tin foil is provided on both sides of the insulation cotton to improve the heat insulation effect of the first insulation layer 12 and the second insulation layer 25.
[0027] In this embodiment, the door stop microwave plate 3 is fixedly installed on the outer surface of the other side of the inner shell 2. A support 31 is fixedly installed inside the door stop microwave plate 3. The door stop microwave plate 3 is embedded in the inner shell 2, blocking most of the microwave and heat from leaking out.
[0028] The inner shell 2 of the door is equipped with a door heat insulation plate 21 fixedly installed on one side. A door heat-conducting aluminum plate 22 is fixedly installed on one side of the door heat insulation plate 21. The outer surface of the door heat-conducting aluminum plate 22 is fitted with an edge seal 23. A door sealing plate 24 is fixedly installed on one side of the door heat-conducting aluminum plate 22. The door sealing plate 24 is fixedly connected to the support 31 by a fixing bolt. The door microwave blocking plate 3 is embedded in the inner shell 2 of the door, blocking most of the microwave and heat from leaking out. The inner shell 2 of the door is equipped with a door heat insulation plate 21 and a door heat-conducting aluminum plate 22 to improve the heat insulation effect. The edge of the door frame is sealed to the surface of the inner shell 2 to prevent the leakage of microwave and heat.
[0029] The working principle of this embodiment is as follows:
[0030] The door structure of the microwave hot air rapid oven has heat insulation and sealing performance. The microwave baffle 3 is embedded in the inner door shell 2, which blocks most of the microwave and heat from leaking out. The inner door shell 2 is equipped with a door heat insulation plate 21 and a door heat-conducting aluminum plate 22 to improve the heat insulation effect. The edge of the door frame is sealed with a strip to the surface of the inner door shell 2 to prevent microwave and heat leakage. Insulation cotton is placed in the middle of the door shell. The surface temperature of the outer door shell 1 is close to room temperature and will not cause harm to customers.
[0031] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sealed and insulated furnace door structure for a microwave hot air furnace, characterized in that, include: A door shell (1) is provided with an inner door shell (2) installed on the inside of the door shell (1). A first insulation layer (12) is embedded inside the door shell (1), and a second insulation layer (25) is provided on one side of the inner door shell (2). A door stop microwave plate (3) is fixedly installed on the outer surface of the other side of the inner shell (2) of the door, and a support (31) is fixedly installed inside the door stop microwave plate (3).
2. The microwave hot air furnace door sealing and heat insulation structure according to claim 1, characterized in that: A door heat insulation plate (21) is fixedly installed on one side of the inner shell (2) of the door. A door heat-conducting aluminum plate (22) is fixedly installed on one side of the door heat insulation plate (21). An edge seal (23) is fitted on the outer surface of the door heat-conducting aluminum plate (22). A door sealing plate (24) is fixedly installed on one side of the door heat-conducting aluminum plate (22). One side of the door sealing plate (24) is fixedly connected to the support (31) by fixing bolts.
3. The microwave hot air furnace door sealing and heat insulation structure according to claim 1, characterized in that: The outer surface of one side of the inner shell (2) of the door is provided with a rectangular frame, and the second insulation layer (25) is provided inside the frame.
4. The microwave hot air furnace door sealing and heat insulation structure according to claim 3, characterized in that: Both the first insulation layer (12) and the second insulation layer (25) are made of insulation cotton.
5. The microwave hot air furnace door sealing and heat insulation structure according to claim 4, characterized in that: Tin foil is provided on both sides of the thermal insulation cotton.
6. The microwave hot air furnace door sealing and heat insulation structure according to claim 1, characterized in that: A handle (11) is fixedly installed on one side of the outer edge of the door shell (1).