Thermal insulation and dissipation device for an electric heating appliance

Abstract

The utility model discloses a kind of heat insulation and heat dissipation devices of electric heating equipment, including utensil body, the heating disc being set above utensil body, the heat insulation block being set between utensil body and heating disc for blocking heat transfer and the heat dissipation mechanism being set in utensil body interior, the lower end of the heating disc is connected with the upper end of utensil body by support leg, and gap is equipped between the edge of the heating disc and utensil body.The heating disc in the heat insulation and heat dissipation device is set outside utensil body, and has heat insulation and heat dissipation function, prevents heating disc mass heat transfer to utensil body, can heat dissipation utensil body, to improve the service life of electric heating equipment.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a heat insulation and heat dissipation device for an electric heating equipment. Background Technology

[0002] Currently, electric heating equipment is widely used in kitchens and is developing towards new specialized types based on increasingly detailed functions, such as rice cookers, induction cookers, ceramic cookers, electric kettles, electric frying pans, electric saucepans, electric hot pots, electric slow cookers, electric griddles, electric frying pans, and so on.

[0003] Existing electric heating equipment mainly consists of the appliance body and a heating element mounted on the appliance body. The heating element is an indispensable part of the equipment, primarily heating the cookware through contact with it. During operation, the heating element generates a large amount of heat and transfers it to the appliance body, causing the appliance body temperature to rise. Consequently, a large amount of hot air is expelled for heat dissipation. However, existing heating elements are typically located inside the appliance body, causing heat to accumulate there. Even with a fan, it is difficult to dissipate the heat effectively, thus affecting the appliance's lifespan. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned problems and provide a heat insulation and heat dissipation device for electric heating equipment. The heating plate in the heat insulation and heat dissipation device is set outside the appliance body and has heat insulation and heat dissipation functions. It prevents a large amount of heat from the heating plate from being transferred to the appliance body and can dissipate heat from the appliance body, thereby improving the service life of the electric heating equipment.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A heat insulation and heat dissipation device for an electric heating equipment includes an appliance body, a heating plate disposed above the appliance body, a heat insulation block disposed between the appliance body and the heating plate for blocking heat transfer, and a heat dissipation mechanism disposed inside the appliance body. The lower end of the heating plate is connected to the upper end of the appliance body by a support leg, and a gap is provided between the edge of the heating plate and the appliance body.

[0007] The working principle of the heat insulation and heat dissipation device of the above-mentioned electric heating equipment is as follows:

[0008] The heating plate is positioned above the appliance body, i.e. outside the appliance body. A gap is provided between the edge of the heating plate and the appliance body. The purpose of this gap is to prevent heat transfer through contact with other parts of the appliance body, except for the support legs. This prevents a large amount of heat from the heating plate from being directly transferred to the appliance body, thus providing a certain degree of heat insulation. At the same time, the gap also allows for rapid heat dissipation. By setting up heat insulation blocks, heat transfer to the appliance body can be further blocked, protecting the circuit boards and other electrical components inside the appliance body from being damaged by high temperatures. A small amount of heat on the appliance body will be dissipated through the heat dissipation mechanism, thereby improving the service life of the electric heating equipment.

[0009] In a preferred embodiment of this utility model, the support leg is either an independent component or a structure formed by stretching and molding the base plate of the heating plate. In the above structures, the support leg is an independent component, that is, the support leg and the heating plate are separately arranged, and the support leg is fixed to the base plate of the heating plate with screws, which facilitates disassembly and maintenance. In another embodiment, the support leg is a structure formed by stretching and molding the base plate of the heating plate, that is, the support leg and the base plate of the heating plate are integrally arranged, which simplifies the structure.

[0010] Preferably, a heat dissipation space is provided between the heat insulation block and the heating plate. In the above structure, the heat dissipation space between the heat insulation block and the heating plate indicates that the thickness of the heat insulation block is small, and the heat insulation block and the heating plate are not in direct contact, but have a space between them. The heating plate and the appliance body are also not in direct contact. During operation, the heat below the heating plate can be dissipated through the heat dissipation space, preventing the heat from being directly transferred downwards and playing a certain role in air barrier. By setting the heat insulation block, heat can be further blocked, and the heat in the heat dissipation space is further blocked to the outside, achieving a double heat insulation effect and preventing heat from being transferred to the appliance body.

[0011] Preferably, there is no heat dissipation space between the heat insulation block and the heating plate. In the above structure, the absence of a heat dissipation space between the heat insulation block and the heating plate indicates that the heat insulation block is relatively thick. The top of the heat insulation block is in direct contact with the bottom plate of the heating plate, and the greater thickness of the heat insulation block further improves the heat insulation effect.

[0012] Preferably, the heat insulation block is a heat insulation material with a temperature resistance of over 500℃, specifically, the heat insulation block is a nano-aerogel felt. Using nano-aerogel felt, it can withstand high temperatures up to 650℃ for extended periods, has a thermal conductivity of 0.018w / mk (at 25℃), and exhibits excellent heat insulation performance.

[0013] Preferably, the heat dissipation mechanism includes a heat dissipation exhaust channel located at the upper end of the appliance body, a mounting cavity located at the lower end of the appliance body for mounting electrical components, and a fan located inside the mounting cavity. The back of the appliance body has heat dissipation holes, and the bottom of the appliance body has an air inlet communicating with the mounting cavity. One end of the heat dissipation exhaust channel communicates with the heat dissipation holes, and the other end communicates with the mounting cavity. In the above structure, the heat dissipation exhaust channel is located below the heat insulation block, and the mounting cavity is separated from the heat insulation block by a heat dissipation exhaust channel, which can further block heat and prevent the electrical components in the mounting cavity from being damaged by high temperatures. During heat dissipation, the fan is activated, and air enters from the air inlet under the action of the fan, is blown towards the mounting cavity, and passes through the electrical components, thus dissipating heat from them. The flowing air enters the heat dissipation exhaust channel from the mounting cavity, expelling the heat from the upper end of the appliance body through the heat dissipation holes. The heat dissipation exhaust channel is close to the heat-generating components, and the flowing air enables rapid heat dissipation, improving the heat dissipation effect and better isolating heat outside the mounting cavity, providing excellent protection for the electrical components.

[0014] Preferably, the mounting cavity is an annular mounting cavity, and a connecting port is provided between the mounting cavity and the heat dissipation and exhaust channel. The air inlet end of the fan corresponds to the air inlet, and the air outlet end of the fan faces away from the connecting port. By setting the above structure, the air inlet end of the fan draws in external air through the air inlet, and after being blown by the fan, it is discharged from the air outlet end into the mounting cavity. The purpose of the air outlet end facing away from the connecting port is that the air blown out by the fan from the air outlet end can flow around the annular mounting cavity for a distance before entering the heat dissipation and exhaust channel through the connecting port. This can extend the airflow path, fully dissipate heat from the electrical components in the annular mounting cavity, improve the heat dissipation effect, and the annular mounting cavity can better guide the airflow.

[0015] Preferably, the appliance body includes a side shell, a panel disposed on the upper end of the side shell, and a bottom shell disposed on the lower end of the side shell. The mounting cavity is disposed on the bottom shell, and a bottom cover is provided at the bottom of the mounting cavity. The support leg is mounted on the panel.

[0016] Preferably, a partition is provided between the bottom shell and the front panel, and the space between the front panel and the partition forms the heat dissipation and exhaust channel. The heat dissipation holes are located on the side shell, and the air inlet is located on the bottom cover. By setting the above structure, a good heat dissipation effect can be achieved, and the structure is simple and the layout is reasonable.

[0017] Preferably, the panel and the bottom shell are fixedly connected by a first bracket, and the partition and the bottom shell are fixedly connected by a second bracket. By setting the first and second brackets, the installation of the panel and the partition is facilitated. The heating plate is fixed by the support legs, and the weight of the pot can be transferred to the panel through the heating plate, and then to the bottom shell, forming a stable support structure that ensures the structure is very stable during use.

[0018] Preferably, both the panel and the partition are made of mica sheets. Mica sheets have good heat insulation properties.

[0019] Preferably, the connection port is located at the end of the mounting cavity furthest from the heat dissipation hole. This is to allow for a longer airflow path, improving heat dissipation and ensuring more comprehensive cooling.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. In the heat insulation and heat dissipation device of this utility model, the heating plate is set outside the appliance body, and there is a gap between the edge of the heating plate and the appliance body to ensure that no other contact heat transfer occurs except for the support leg. This can prevent a large amount of heat from the heating plate from being directly transferred to the appliance body, thus achieving a certain heat insulation effect.

[0022] 2. The heat insulation and heat dissipation device in this utility model can further block the heat transfer to the appliance body by setting a heat insulation block between the heating plate and the appliance body. This can protect the electrical components such as the circuit board inside the appliance body from being damaged by high temperature. A small amount of heat on the appliance body will be dissipated through the heat dissipation mechanism. By achieving heat insulation and heat dissipation, the two effects are combined, which greatly improves the service life of the electric heating equipment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of one specific embodiment of the heat insulation and heat dissipation device of an electric heating equipment according to the present invention.

[0024] Figure 2 This is a three-dimensional structural diagram of the heat insulation and heat dissipation device of this utility model after omitting the heat insulation block.

[0025] Figure 3 This is a front view of the heat insulation and heat dissipation device in this utility model.

[0026] Figure 4 for Figure 3 A cross-sectional view along the BB direction.

[0027] Figure 5 This is a schematic diagram of the airflow path of the heat insulation and heat dissipation device in this utility model.

[0028] Figure 6for Figure 4 A magnified view of a portion of point A in the middle.

[0029] Figure 7 This is a three-dimensional structural diagram of the heat insulation and heat dissipation device of this utility model from another perspective.

[0030] Figure 8 This is a three-dimensional structural diagram of the heat insulation and heat dissipation device of this utility model without the bottom cover.

[0031] Figure 9 This is a three-dimensional structural diagram of the heat insulation and heat dissipation device of this utility model after omitting the bottom cover and electrical components.

[0032] Figure 10 This is a schematic diagram of the airflow path of the heat insulation and heat dissipation device of this utility model after omitting the bottom cover and electrical components.

[0033] Figure 11 This is a three-dimensional structural diagram of the main body of the device in this utility model.

[0034] Figure 12 This is a three-dimensional structural diagram of the heating plate in this utility model. Detailed Implementation

[0035] To enable those skilled in the art to fully understand the technical solution of this utility model, the present utility model will be further described below in conjunction with the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0036] Example 1

[0037] See Figures 1-12 This embodiment discloses a heat insulation and heat dissipation device for an electric heating equipment, including an appliance body 1, a heating plate 2 disposed above the appliance body 1, a heat insulation block 3 disposed between the appliance body 1 and the heating plate 2 for blocking heat transfer, and a heat dissipation mechanism disposed inside the appliance body 1. The lower end of the heating plate 2 is connected to the upper end of the appliance body 1 by a support leg 4. A gap is provided between the edge of the heating plate and the appliance body, and the height of the gap is 2mm or greater than 2mm.

[0038] See Figures 1-12 The support leg 4 is an independent component. In the above structure, the support leg 4 is an independent component, that is, the support leg 4 and the heating plate 2 are set separately. The support leg 4 is fixed to the base plate of the heating plate 4 with screws, which facilitates disassembly and maintenance.

[0039] See Figures 1-6A heat dissipation space 5 is provided between the heat insulation block 3 and the heating plate 2. The purpose of this is that the heat insulation block 3 has a small thickness, meaning there is space between the upper end of the heat insulation block 3 and the lower end of the heating plate 2, so they do not contact each other. The heating plate 2 also does not directly contact the appliance body 1. A small amount of heat is transferred to the appliance body 1 through the support leg 4. During operation, the heat below the heating plate 2 can be dissipated through the heat dissipation space 5, preventing a large amount of heat from being transferred directly downwards, thus providing a certain degree of air barrier. By setting the heat insulation block 3, heat can be further blocked, and the heat in the heat dissipation space 5 is further blocked to the outside, achieving a double heat insulation effect and preventing heat from being transferred to the appliance body 1.

[0040] See Figures 1-12 In this embodiment, the heating plate 2 is suspended above the appliance body 1 by the supporting legs 4. The lower part of the heating plate 2 has a heat dissipation space 5 to ensure that the edge of the heating plate 2 does not contact the panel 1-2 of the appliance body 1, and the heating plate 2 does not contact the heat insulation material. There are three supporting legs 4, which are evenly distributed in a circle.

[0041] See Figures 1-6 The heat insulation block is a heat insulation material with a temperature resistance of over 500℃. Specifically, the heat insulation block 3 is a nano-aerogel felt. Using nano-aerogel felt, it can withstand high temperatures of up to 650℃ for extended periods, has a thermal conductivity of 0.018w / mk (at 25℃), and exhibits excellent heat insulation performance.

[0042] See Figures 1-12 The heat dissipation mechanism includes a heat dissipation and exhaust channel 6 disposed on the upper end of the appliance body 1, a mounting cavity 8 disposed on the lower end of the appliance body 1 for mounting electrical components 7, and a fan 9 disposed inside the mounting cavity 8; the back of the appliance body 1 is provided with a heat dissipation hole 10, and the bottom of the appliance body 1 is provided with an air inlet 11 communicating with the mounting cavity 8; one end of the heat dissipation and exhaust channel 6 is connected to the heat dissipation hole 10, and the other end of the heat dissipation and exhaust channel 6 is connected to the mounting cavity 8. In the above structure, the heat dissipation and exhaust channel 6 is located below the heat insulation block 3. The heat dissipation and exhaust channel 6 separates the mounting cavity 8 from the heat insulation block 3, which can further block heat and prevent the electrical components 7 in the mounting cavity 8 from being damaged by high temperature. When dissipating heat, the fan 9 is turned on. Under the action of the fan 9, air enters from the air inlet 11 and is blown towards the mounting cavity 8 by the fan 9. The air passes through the electrical components 7 and dissipates heat from the electrical components 7. The flowing air enters the heat dissipation and exhaust channel 6 from the mounting cavity 8 and exhausts the heat from the upper end of the appliance body 1 through the heat dissipation hole 10. The heat dissipation and exhaust channel 6 is close to the heating component. The flowing air can achieve rapid heat dissipation and improve the heat dissipation effect. At the same time, it can better isolate the heat outside the mounting cavity 8 and play a good protective role for the electrical components 7.

[0043] See Figures 1-12 The heat dissipation and exhaust channel 6 is located between the mounting cavity 8 and the heating plate 2, which can isolate the heating plate 2 from the electrical components 7 in the mounting cavity 8, achieving good heat insulation and heat dissipation. The outer shell of the electrical components 7 is made of plastic.

[0044] See Figures 1-12 The mounting cavity 8 is an annular mounting cavity, and a connecting port 12 is provided between the mounting cavity 8 and the heat dissipation and exhaust channel 6. The air inlet 9-1 of the fan 9 corresponds to the air inlet 11, and the air outlet 9-2 of the fan 9 faces away from the connecting port 12. By setting the above structure, the air inlet 9-1 of the fan 9 draws in external air through the air inlet 11, and after being blown out by the fan 9, it is discharged from the air outlet 9-2 into the mounting cavity 8. The purpose of the air outlet 9-2 facing away from the connecting port 12 is that the air blown out by the fan 9 from the air outlet 9-2 can flow around the annular mounting cavity for a distance before entering the heat dissipation and exhaust channel 6 through the connecting port 12. This extends the airflow path, allowing for sufficient heat dissipation of the electrical components 7 in the annular mounting cavity, improving the heat dissipation effect, and the annular mounting cavity can better guide the airflow. Figure 5 and Figure 10 The dashed arrows in the diagram represent the airflow path.

[0045] See Figures 1-12 The appliance body 1 includes a side shell 1-1, a panel 1-2 disposed on the upper end of the side shell 1-1, and a bottom shell 1-3 disposed on the lower end of the side shell 1-1. The mounting cavity 8 is disposed on the bottom shell 1-3, and a bottom cover 1-4 is provided at the bottom of the mounting cavity 8. The support leg 4 is mounted on the panel 1-2. Specifically, the support leg 4 is fixed to the panel 1-2 of the appliance body 1 by screws.

[0046] See Figures 1-12 A partition 13 is provided between the bottom shell 1-3 and the front panel 1-2. The space between the front panel 1-2 and the partition 13 forms the heat dissipation and exhaust channel 6. The heat dissipation holes 10 are provided on the side shell 1-1, and the air inlet 11 is provided on the bottom cover 1-4. By setting the above structure, a good heat dissipation effect can be achieved. The structure is simple and the layout is reasonable.

[0047] See Figures 1-12The panel 1-2 and the bottom shell 1-3 are fixedly connected by a first bracket 14, and the partition 13 and the bottom shell 1-3 are fixedly connected by a second bracket 15. Multiple first brackets 14 and second brackets 15 can be used to achieve stable support. The first brackets 14 and second brackets 15 facilitate the installation of the panel 1-2 and the partition 13. The heating plate 2 is fixed by support legs 4. The weight of the cookware can be transferred from the heating plate 2 to the panel 1-2, and then to the bottom shell 1-3, forming a stable support structure that ensures structural stability during use. The second bracket can also be a supporting side plate.

[0048] See Figures 1-12 The panels 1-2 and the partition 13 are all made of mica sheets. Mica sheets have good heat insulation properties.

[0049] See Figures 1-12 The connecting port 12 is located at the end of the mounting cavity 8 away from the heat dissipation hole 10. This is intended to extend the airflow path, improve heat dissipation, and ensure more comprehensive heat dissipation.

[0050] See Figures 1-12 The working principle of the heat insulation and heat dissipation device of the above-mentioned electric heating equipment is as follows:

[0051] The heating plate 2 is positioned above the appliance body 1, i.e., outside the appliance body 1. A gap is provided between the edge of the heating plate 2 and the appliance body 1. The purpose of this is to prevent any contact heat transfer except for the support leg 4, thus preventing a large amount of heat from the heating plate 2 from being directly transferred to the appliance body 1, providing a certain heat insulation effect. At the same time, the gap can also facilitate rapid heat dissipation. By setting the heat insulation block 3, heat transfer to the appliance body 1 can be further blocked, protecting the circuit boards and other electrical components 7 inside the appliance body 1 from being damaged by high temperatures. A small amount of heat on the appliance body 1 will be dissipated through the heat dissipation mechanism, thereby improving the service life of the electric heating equipment.

[0052] Example 2

[0053] The other structures in this embodiment are the same as in embodiment 1. The difference is that the heat dissipation structure includes heat dissipation fins and a heat dissipation fan 9 disposed inside the appliance body 1. The heat dissipation fan 9 carries away the heat absorbed by the heat dissipation fins, thereby achieving heat dissipation of the electrical components 7 inside the appliance body 1 and heat dissipation of the appliance body 1 itself.

[0054] Example 3

[0055] The other structures in this embodiment are the same as in Embodiment 1, except that the support leg 4 is a structure formed by stretching the bottom plate of the heating plate 2. In the above structure, the support leg 4 is a structure formed by stretching the bottom plate of the heating plate 2, that is, the support leg 4 and the bottom plate of the heating plate 2 are integrally set, which makes the structure simpler.

[0056] Example 4

[0057] The other structures in this embodiment are the same as in Embodiment 1, except that there is no heat dissipation space between the heat insulation block 3 and the heating plate 2. In the above structure, the absence of a heat dissipation space between the heat insulation block 3 and the heating plate 2 indicates that the heat insulation block 3 is relatively thick. The top of the heat insulation block 3 is in direct contact with the bottom plate of the heating plate 2, and the greater thickness of the heat insulation block 3 further enhances the heat insulation effect.

[0058] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A heat insulation and heat dissipation device for an electric heating equipment, characterized in that, The appliance includes a main body, a heating plate disposed above the main body, a heat insulation block disposed between the main body and the heating plate to block heat transfer, and a heat dissipation mechanism disposed inside the main body. The lower end of the heating plate is connected to the upper end of the main body via a support leg, and a gap is provided between the edge of the heating plate and the main body.

2. The heat insulation and heat dissipation device according to claim 1, characterized in that, The support leg is either an independent component or a structure formed by stretching on the base plate of the heating plate.

3. The heat insulation and heat dissipation device according to claim 1, characterized in that, A heat dissipation space is provided between the heat insulation block and the heating plate.

4. The heat insulation and heat dissipation device according to claim 2, characterized in that, The heat insulation block is a heat insulation material with a temperature resistance of 500°C or higher.

5. The heat insulation and heat dissipation device according to claim 3, characterized in that, The heat insulation block is a nano-aerogel felt.

6. The heat insulation and heat dissipation device according to claim 1, characterized in that, The heat dissipation mechanism includes a heat dissipation and exhaust channel located at the upper end of the appliance body, a mounting cavity located at the lower end of the appliance body for mounting electrical components, and a fan located inside the mounting cavity; the back of the appliance body is provided with heat dissipation holes, and the bottom of the appliance body is provided with an air inlet communicating with the mounting cavity; one end of the heat dissipation and exhaust channel is connected to the heat dissipation holes, and the other end of the heat dissipation and exhaust channel is connected to the mounting cavity.

7. The heat insulation and heat dissipation device according to claim 6, characterized in that, The mounting cavity is an annular mounting cavity, and a connecting port is provided between the mounting cavity and the heat dissipation and exhaust channel. The air inlet end of the fan corresponds to the air inlet, and the air outlet end of the fan faces away from the connecting port.

8. The heat insulation and heat dissipation device according to claim 6, characterized in that, The appliance body includes a side shell, a panel disposed on the upper end of the side shell, and a bottom shell disposed on the lower end of the side shell. The mounting cavity is disposed on the bottom shell, and a bottom cover is provided at the bottom of the mounting cavity. The support leg is mounted on the panel.

9. The heat insulation and heat dissipation device according to claim 8, characterized in that, A partition is provided between the bottom shell and the panel, and the space between the panel and the partition forms the heat dissipation and exhaust channel. The heat dissipation holes are provided on the side shell, and the air inlet is provided on the bottom cover.

10. The heat insulation and heat dissipation device according to claim 7, characterized in that, The connection port is located at the end of the mounting cavity away from the heat dissipation hole.

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