TWM602314U - Electric heating device - Google Patents

Abstract

An electric heating device includes a pot body, a casing, a main electric heating pipe and a heat insulation cover. The casing is disposed at least at the outside of a bottom surface of the pot body. The main electric heating pipe is located between the pot body and the casing and thermal coupled to the pot body. The heat insulation cover is located between the pot body and the casing and covers at least a part of the bottom surface of the pot body. The heat insulation cover includes a first hole, and the main electric heating pipe passes through the first hole.

Description

Electric heating device

This new creation relates to an electric heating device, and particularly to an energy-saving electric heating device.

The conventional electric heating device thermally couples the electric heating tube to the pot body to heat the pot body, but the thermal energy generated by the electric heating tube is not only conducted to the pot body, but also easily escapes, resulting in waste of energy.

This new creation provides an electric heating device, which has the effect of energy saving.

An electric heating device created by the new model includes a pot body, a shell, a main electric heating tube and a heat shield. The outer shell is arranged at least outside the bottom surface of the pot body. The main electric heating tube is located between the pot body and the shell and is thermally coupled to the pot body. The heat shield is located between the pot body and the shell and covers at least a part of the bottom surface of the pot body, wherein the heat shield includes a first hole, and the main electric heating pipe penetrates the first hole.

In an embodiment of the present invention, the above-mentioned electric heating device further includes a homogenizing element, which is disposed on the bottom surface of the pot and thermally coupled to the main electric heating tube and the pot, wherein the heat shield covers the homogenizing element.

In an embodiment of the present invention, the above-mentioned uniform heating element and heat shield cover the central area of the bottom surface of the pot body and expose the surrounding area of the bottom surface.

In an embodiment of the present invention, the above-mentioned electric heating device further includes a heat preservation and heating assembly, which is located between the bottom surface of the pot and the heat shield and is thermally coupled to the uniform heat element.

In an embodiment of the present invention, the above-mentioned heat shield includes a second hole, and the wires of the heat-preserving and heating assembly penetrate the second hole.

In an embodiment of the present invention, the above-mentioned electric heating device further includes a temperature limiter, which is located between the bottom surface of the pot and the heat shield, and is electrically connected to the main electric heating pipe. The temperature limiter is used to detect The temperature of the bottom surface is suitable for turning off the main electric heating tube when the pot body reaches the set temperature.

In an embodiment of the present invention, the aforementioned heat shield includes a third hole, and the temperature limiter penetrates through the third hole.

In an embodiment of the present invention, the aforementioned heat shield includes a ceramic heat shield, a metal heat shield or a plastic heat shield.

In an embodiment of the present invention, the above-mentioned shell covers the bottom and side surfaces of the pot body.

In an embodiment of the present invention, the above-mentioned electric heating device includes an electric pot, an electric pot, an electric boiling pot or a soybean milk maker.

Based on the above, the electric heating device created by the present invention is provided with a heat shield between the pot body and the outer shell, and the heat shield covers at least part of the bottom surface of the pot body and at least part of the main electric heating pipe. In this way, the heat energy emitted by the main electric heating tube can be concentrated by the heat shield and transferred to the pot body, effectively reducing the probability of heat energy loss, and achieving the effect of energy saving.

Fig. 1 is a schematic cross-sectional view of an electric heating device according to an embodiment of the invention. Fig. 2 is an exploded schematic diagram of the electric heating device of Fig. 1, wherein Fig. 2 hides the shell and the pot cover of Fig. 1.

1 and 2, the electric heating device 100 of this embodiment uses an electric pan as an example, but the type of the electric heating device 100 is not limited to this. In other embodiments, the electric heating device 100 may also be an electric pot or an electric cooker. A heating device such as a pot or a soymilk machine that converts electrical energy into heat.

Generally speaking, this type of electric heating device generates heat through an electric heating tube, and the heat generated by the electric heating tube is easily dissipated around, resulting in low thermal efficiency. The electric heating device 100 of this embodiment has a special structure that can improve thermal efficiency and effectively reduce heat loss. This will be explained below.

In this embodiment, the electric heating device 100 includes a pot body 110, a housing 120, a main electric heating tube 130, a heat shield 140 and a pot cover 180. The pot body 110 is, for example, the outer pot of an electric pot, but it is not limited thereto. The housing 120 is disposed at least outside the bottom surface 112 of the pot body 110. The pot cover 180 is disposed on the housing 120. In this embodiment, the shell 120 is the shell 120 of the electric cooker and is exposed to the outside. However, in other embodiments, the shell 120 may not be exposed to the product. In addition, in this embodiment, the shell 120 covers the bottom surface 112 and the side surface 118 of the pot 110, but in other embodiments, the shell 120 may only cover the bottom surface 112 of the pot 110.

The bottom surface 112 of the pot 110 can distinguish the central area 114 and the peripheral area 116 located outside the central area 114. In the case of an electric pot, an inner pot (not shown) is placed in the outer pot (the pot body 110), and the inner pot is usually placed in the center of the outer pot. Therefore, if the heat of the pot body 110 can be concentrated in the center, the inner pot can be heated better.

The main electric heating pipe 130 is used to convert electric energy into heat energy, and serves as the main heat source of the electric heating device 100. The main electric heating tube 130 is located between the pot body 110 and the outer shell 120 and is thermally coupled to the pot body 110. More specifically, the main electric heating pipe 130 may be arranged in the central area 114 of the bottom surface 112 of the pot body 110, and the main electric heating pipe 130 may directly or indirectly contact the pot body 110 to conduct heat to the bottom surface of the pot body 110. 112 of the central area 114.

In this embodiment, the electric heating device 100 may optionally include a uniform heating element 150 disposed on the bottom surface 112 of the pot body 110 and thermally coupled to the main electric heating tube 130 and the pot body 110. The uniform heating element 150 can be arranged in the central area 114 of the bottom surface 112 of the pot body 110, and the uniform heating element 150 contacts the main electric heating tube 130 and the pot body 110. In this embodiment, the material of the uniform heat element 150 may include aluminum, and the shape of the uniform heat element 150 may be a ring shape. In other embodiments, the shape of the uniform heat element 150 may also be a disc shape. The material and shape are not limited by this.

The ring-shaped heat uniforming element 150 may be arranged in the central area 114 close to the surrounding area 116. The heat energy emitted by the main electric heating tube 130 is transferred to the uniform heat element 150, and the heat is transferred to other parts on the bottom surface 112 of the pot 110 through the uniform heat element 150. Therefore, the main electric heating pipe 130 can provide uniform heat energy to the pot body 110 through the uniform heating element 150.

It is worth mentioning that, in order to reduce the heat emitted by the main electric heating tube 130 from escaping to the outside and causing low thermal efficiency, in this embodiment, the heat shield 140 is disposed between the pot body 110 and the outer shell 120 and covers the pot body. At least a part of the bottom surface 112 of the body 110. Since the heat shield 140 will cover at least a part of the main electric heating pipe 130 and the uniform heating element 150, this part of the main electric heating pipe 130 and the uniform heating element 150 are located between the bottom surface 112 of the pot 110 and the heat shield 140. The heat energy emitted by the electric heating tube 130 is not easily transferred in a direction away from the bottom surface 112 of the pot body 110. In other words, the heat shield 140 helps to concentrate the heat energy emitted by the main electric heating pipe 130 on the bottom surface 112 of the pot body 110, thereby increasing the thermal efficiency.

In this embodiment, the heat shield 140 covers the central area 114 of the bottom surface 112 of the pot body 110 and exposes the surrounding area 116 of the bottom surface 112. Of course, in other embodiments, the heat shield 140 may also cover the entire bottom surface 112 of the pot body 110. In addition, the heat shield 140 may be, for example, a ceramic heat shield, a metal heat shield (for example, a hot-dip galvanized steel cover, but not limited to this), or a plastic heat shield. The material of the heat shield 140 is not limited, as long as the material can retain heat energy in the heat shield 140.

The electric heating device 100 further includes a temperature limiter 170 located between the bottom surface 112 of the pot 110 and the heat shield 140, and is electrically connected to the main electric heating pipe 130. The temperature limiter 170 is used to detect the temperature of the bottom surface 112 of the pot 110 The temperature is suitable for turning off the main electric heating tube 130 when the pot body 110 reaches the set temperature to avoid overheating.

In addition, since the electric heating device 100 of the present embodiment uses an electric pan as an example, the electric pan has a heat preservation function and provides a low-temperature heating effect. Therefore, in this embodiment, the electric heating device 100 further includes a heat preservation and heating group 160, which is located between the bottom surface 112 of the pot 110 and the heat shield 140 and is thermally coupled to the uniform heat element 150. The heat preservation heating group 160 can also convert electrical energy into heat energy, but the temperature that the electric cooker can increase is limited.

In other words, when the electric pot is to perform the normal steaming function, it is heated by the main electric heating pipe 130, so that the water in the inner pot can boil. When the electric cooker needs to perform the heat preservation function, it is heated by the heat preservation heating group 160 to make the electric cooker slightly heat up. When the electric pot is kept warm, the heat generated by the heat-preserving heating group 160 will be transferred to the uniform heating element 150, and then transferred to the pot body 110 through the uniform heating element 150, so as to uniformly provide the pot body 110 with the heat energy required for keeping the temperature warm.

It should be noted that, in order to strengthen the heat collection effect of the heat shield 140, there are only necessary holes on the heat shield 140 for the wires 162 or fixed structures to pass through. Specifically, in this embodiment, the heat shield 140 includes a first hole 142, a second hole 144, a third hole 146, a first fixing hole 147, and a second fixing hole 148.

The first hole 142 is for the main electric heating pipe 130 to pass through, the second hole 144 is for the wire 162 of the heat insulation heating group 160 to pass, and the third hole 146 is for the temperature limiter 170 to pass through. The first fixing hole 147 is, for example, a screw hole, and the locking member 176 passes through the wire socket 175 and is screwed to the first fixing hole 147. The second fixing hole 148 is, for example, a through hole, and the nut 178 is screwed to the stud 179 passing through the second fixing hole 148. Of course, in other embodiments, the heat shield 140 may have other holes or some of the holes may be omitted, which is not limited by the drawings.

According to actual measurement, the energy efficiency test of the electric heating device 100 with the heat shield 140 in this embodiment is significantly higher than that of the conventional electric heating device without the heat shield 140, and has a good energy efficiency performance.

In summary, the electric heating device of the present invention is provided with a heat shield between the pot body and the outer shell, and the heat shield covers at least part of the bottom surface of the pot body and at least part of the main electric heating pipe. In this way, the heat energy emitted by the main electric heating tube can be concentrated by the heat shield and transferred to the pot body, effectively reducing the probability of heat energy loss, and achieving the effect of energy saving.

100: electric heating device 110: pot body 112: Bottom 114: Central area 116: surrounding area 118: side 120: Shell 130: Main electric heating tube 140: Heat shield 142: The first hole 144: Second Hole 146: The Third Hole 147: The first fixing hole 148: second fixing hole 150: even heat 160: Thermal insulation heating group 162: Wire 170: Temperature Limiter 175: terminal block 176: lock firmware 178: Nut 179: Stud 180: pot cover

Fig. 1 is a schematic cross-sectional view of an electric heating device according to an embodiment of the invention. Fig. 2 is an exploded schematic diagram of the electric heating device of Fig. 1.

100: electric heating device

110: pot body

112: Bottom

114: Central area

116: surrounding area

118: side

120: Shell

130: Main electric heating tube

140: Heat shield

150: even heat

160: Thermal insulation heating group

162: Wire

170: Temperature Limiter

180: pot cover

Claims (10)

An electric heating device, including: Pot body The outer shell is arranged at least outside the bottom surface of the pot body; The main electric heating tube is located between the pot body and the outer shell and is thermally coupled to the pot body; and The heat shield is located between the pot body and the outer shell and covers at least a part of the bottom surface of the pot body, wherein the heat shield includes a first hole, and the main electric heating pipe penetrates the first Hole. The electric heating device according to claim 1, further comprising: The uniform heat element is arranged on the bottom surface of the pot body and is thermally coupled to the main electric heating tube and the pot body, wherein the heat shield covers the uniform heat element. The electric heating device according to claim 2, wherein the uniform heating element and the heat shield cover the central area of the bottom surface of the pot body and expose the surrounding area of the bottom surface. The electric heating device as described in claim 2, further comprising: The heat preservation and heating group is located between the bottom surface of the pot body and the heat shield, and is thermally coupled to the uniform heat element. The electric heating device according to claim 4, wherein the heat shield includes a second hole, and the wire of the heat insulation heating group penetrates the second hole. The electric heating device according to claim 1, further comprising: The temperature limiter is located between the bottom surface of the pot body and the heat shield, and is electrically connected to the main electric heating pipe. The temperature limiter is used to detect the bottom surface of the pot body Temperature, and suitable for turning off the main electric heating tube when the pot body reaches a set temperature. The electric heating device according to claim 6, wherein the heat shield includes a third hole, and the temperature limiter penetrates the third hole. The electric heating device according to claim 1, wherein the heat shield includes a ceramic heat shield, a metal heat shield or a plastic heat shield. The electric heating device according to claim 1, wherein the casing covers the bottom surface and the side surface of the pot body. The electric heating device according to claim 1, wherein the electric heating device includes an electric pot, an electric pot, an electric boiling pot or a soybean milk maker.

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