CN102551512B - Steam generating device of electric steamer - Google Patents

Abstract

The steam generating device of the electric steamer includes the water tank and the heating device in the water tank. The energy-concentrating cup is fixed in the water tank, and the water delivery channel for sending the water in the water tank into the energy-concentrating cup is arranged in the water delivery channel. There is a switch in the water delivery channel Valve; the heating device is located in the energy-concentrating cup, and the energy-concentrating cup is provided with a top opening that allows the steam to output outward; the heat-concentrating cup is provided with a radiator, and the radiator includes an inverted cup-shaped base, and a heat-conducting material on the base The manufactured support bar and the cooling fins fixed on the support bar. The invention has the advantages of being able to completely isolate the water source and having little energy waste.

Description

Steam generator for electric steamer

technical field

The invention relates to a steam generator for an electric steamer. the

Background technique

As a practical kitchen appliance, the electric steamer is getting more and more attention. The principle of the traditional electric steamer is similar to that of the household fire steamer, and it is also evolved according to the structure principle of the traditional bamboo steamer. The usual structure of electric steamers currently on the market is: the electric steamer includes a steam generating device and a steamer placed on the steam generating device, and the steam generating device includes a water storage tank and a heating device for heating water in the water storage tank to form steam. The steam generated by the steam generating device enters the steamer to cook the food in the steamer. The disadvantage of this kind of electric steamer is: the heating device must heat all the water in the water tank to boil to generate steam. If the volume of the water tank is small, although the speed of steam generation can be accelerated, the amount of steam is small, and the amount of food that can be cooked is small. . If the volume of the water tank is increased, although the amount of steam generation is increased, the steam generation speed is slow and the energy consumption is large. the

Contents of the invention

In order to overcome the shortcomings of the prior art that the water source cannot be completely isolated and the energy waste is large, the present invention provides a steam generating device for an electric steamer that can completely isolate the water source and has little energy waste. the

The steam generating device of the electric steamer, including the water tank and the heating device in the water tank,

The energy-concentrating cup is fixed in the water tank, and the inner cavity of the energy-concentrating cup is isolated from the inner cavity of the water tank. There is a water delivery channel for sending the water in the water tank into the energy-concentrating cup in the water tank, and there is a switch valve in the water delivery channel;

The heating device is located in the energy-concentrating cup, and the top of the energy-concentrating cup is provided with an opening for allowing steam to output outward.

Furthermore, a heat-resistant layer is provided on the cup body of the energy-concentrating cup to prevent the heat inside the cup from being transferred to the outside. the

As a preferred mode, the energy-collecting cup is a cylindrical body with an open upper end, the energy-collecting cup includes an inner shell and an outer shell, and there is a cavity between the inner shell and the outer shell, and the cavity is filled with There is a heat-resistant material to prevent heat from dissipating; the bottom of the inner shell is closed, and the bottom of the outer shell is sealed with the inner bottom of the water tank to prevent the water in the water tank from directly entering the energy-concentrating cup without passing through the water delivery channel. the

Further, the energy-concentrating cup is provided with a radiator capable of absorbing the heat generated by the heating device when it is dry-burned and radiating the heat outward. The radiator includes an inverted cup-shaped base, a support rod made of thermally conductive material on the base And cooling fins fixed on the support rod. Both the supporting rod and the cooling fins are made of heat conducting material, and the cooling fins are evenly distributed along the length direction of the supporting rod. The cooling fins are annular, and a plurality of supporting rods are evenly distributed along the circumference of the cooling fins. Or the heat dissipation fins are linear fins, the support rod and the heat dissipation fins on the support rod form a heat dissipation unit, the radiator is composed of a plurality of heat dissipation units, and the heat dissipation units are evenly distributed around the heating device. the

Further, the top of the energy-concentrating cup is provided with a filter screen. the

As a preferred mode, the water tank is composed of an inner water tank shell and an outer water tank shell, and there is an accommodating cavity for accommodating the water delivery pipeline between the inner water tank shell and the outer water tank shell, and the inner water tank shell forms a water tank for holding water. The outer shell of the water tank forms the shell of the electric steamer; one end of the water delivery pipe extends from the inner water tank shell into the inner cavity of the water tank, and the other end extends from the bottom of the inner shell of the energy-concentrating cup into the inner cavity of the energy-concentrating cup . the

Further, the water pipeline includes a water inlet joint connected to the inner water tank shell, a water delivery joint connected to the inner shell of the energy-concentrating cup, and a first connecting pipe connecting the on-off valve and the water inlet joint, and connecting the on-off valve to the water inlet joint. The second connecting pipe between the water supply joints; a sealing ring is provided between the water inlet joint and the inner water tank shell, and a sealing ring is also provided between the water supply joint and the inner shell of the energy-concentrating cup. The electromagnetic valve is used as the switch valve, and the silicone tube is used as the connecting pipe. the

Further, a liquid level detector is provided in the water tank. the

The technical idea of the present invention is: water is filled into the water tank, and according to the principle of connection, the water in the water tank flows into the energy-concentrating cup through the water delivery pipe. A large amount of steam is generated quickly. When the heat preservation function is required, the solenoid valve is closed, the cold water is cut off, and the radiator starts to emit heat to achieve the heat preservation function. the

The electric steamer of the present invention can use the dry heating radiation temperature of the electric heating tube to keep warm, without continuously heating and boiling water vapor, so as to achieve the function of heat keeping or humidity keeping. the

Description of drawings

Fig. 1 is a sectional view of the present invention without radiator. the

Figure 2 is a cross-sectional view of the present invention with a heat sink. the

Figure 3 is a schematic diagram of a heat sink. the

Detailed ways

Embodiment one

Refer to Figure 1

The steam generating device of the electric steamer includes a water tank 1 and a heating device 3 in the water tank 1,

An energy-gathering cup 3 is fixed inside the water tank 1, and the inner cavity of the energy-gathering cup is much smaller than the inner cavity of the water tank. The water tank 1 is provided with a water delivery channel 4 for sending the water in the water tank 1 into the energy-concentrating cup 3 , and an on-off valve 5 is provided in the water delivery channel 4 so that the water tank 1 and the energy-collecting cup 3 can be selectively communicated. When the on-off valve 5 is opened, the inner cavity of the energy-gathering cup communicates with the inner cavity of the water tank; when the on-off valve 5 is closed, the inner cavity of the energy-gathering cup is isolated from the inner cavity of the water tank.

The heating device 2 is located in the energy-concentrating cup 3, and the cup body of the energy-concentrating cup 3 is provided with a heat-resistant layer to reduce the heat loss in the cup to the outside. The top of the energy-collecting cup 3 is provided with an opening, so that the heating device 2 heats the water in the energy-collecting cup 3 to generate steam, which can be output from the opening. In this embodiment, the heating device 2 is an electric heating tube. the

The energy collecting cup 3 includes an inner shell 31 and an outer shell 32. There is a cavity 33 between the inner shell 31 and the outer shell 32. The cavity 33 is filled with a heat-resistant material 34 to prevent heat loss. The bottom of the inner shell 31 is closed, and the bottom of the outer shell 32 is sealed and connected to the inner bottom surface of the water tank 1 to prevent the water in the water tank 1 from directly entering the energy-concentrating cup 3 without passing through the water delivery channel 4 . When the electric steamer starts to work, the heating device 2 only heats the water in the energy-concentrating cup 3. Due to the small volume of the inner cavity of the energy-concentrating cup 3, the water in the energy-concentrating cup 3 is rapidly heated to generate steam, and the steam is released quickly. Save electricity. The heat-resisting layer in the energy-collecting cup 3 reduces the heat exchange between the water in the energy-collecting cup 3 and the water in the water tank 1 , and improves the utilization rate of heat energy of the heating device 2 . When it is necessary to use steam to cook food, the on-off valve 5 is continuously opened, and the water in the water tank 1 is continuously input into the energy-concentrating cup 3, and is heated by the heating device 2 to form high-temperature steam. the

The top of the energy-concentrating cup 3 is provided with a filter screen 6 . the

The water tank 1 is composed of an inner water tank shell 11 and an outer water tank shell 12. There is an accommodating cavity 13 for accommodating the water delivery pipe between the inner water tank shell 11 and the outer water tank shell 12. The inner water tank shell 11 forms A container for holding water, the outer water tank shell 12 forms the shell of the electric steamer; one end of the water delivery pipe 4 extends from the inner water tank shell 11 into the inner cavity of the water tank, and the other end extends from the bottom of the inner shell 31 of the energy-concentrating cup 3 Extend into the cavity of the energy-concentrating cup. the

The water pipeline 4 includes a water inlet joint 41 connected to the inner water tank shell 11, a water delivery joint 42 connected to the inner shell 31 of the energy-concentrating cup 3, and a first connecting pipe connecting the on-off valve 5 and the water inlet joint 41 43, and the second connecting pipe 44 connecting the on-off valve 5 and the water delivery joint 42; a sealing ring is provided between the water inlet joint 41 and the inner layer water tank shell 11, and the inner layer shell of the water delivery joint 42 and the energy-concentrating cup 3 A sealing ring is also provided between the bodies 31 , and the sealing ring prevents water from flowing into the containing cavity and avoids damaging other electronic components in the containing cavity 13 . A solenoid valve is used as the on-off valve 5, and a silicone tube is used as the connecting pipes 43, 44. the

A liquid level detector 7 is provided in the water tank 1 . When the water level in the water tank 1 drops to the minimum water level, the liquid level detector 7 sends an alarm to remind the user to add water. the

The inner cavity of the energy gathering cup of the present invention is far smaller than the inner cavity of the water tank, and only needs to heat the hot water in the energy gathering cup to generate steam, which has the advantages of small energy loss and high steam generation efficiency. the

Example two

Refer to Figures 2 and 3

The difference between this embodiment and the first embodiment is that a radiator 8 is added in the energy collecting cup 3 in this embodiment. The energy-gathering cup 3 is provided with a radiator 8 that can absorb the heat generated when the heating device is dry-burned and radiate the heat outward. The radiator 8 includes a base 81 in the shape of an inverted cup. The support rod 82 and the cooling fins 83 fixed on the support rod 82 . Both the support rod 82 and the heat dissipation fins 83 are made of heat conducting material, and the heat dissipation fins 83 are evenly distributed along the length direction of the support rod 82 . The cooling fins 83 are annular, and a plurality of support rods 82 are evenly distributed along the circumference of the cooling fins 83 . Or the cooling fins 83 are linear fins, the supporting rod 82 and the cooling fins 83 on the supporting rod 82 form a cooling unit, the radiator is composed of a plurality of cooling units, and the cooling units are evenly distributed around the heating device.

When the electric steamer needs to enter the heat preservation state, close the on-off valve 5 and stop inputting cold water into the energy-concentrating cup 3 . At this time, the heating device 2 enters into dry burning, and the heat generated by the heating device 2 is transferred to the radiator 8 through the air, and the radiator 8 transmits the heat to the outside air through heat radiation, and the food is kept warm through the hot air without constant heating Boiling water vapor. the

The electric steamer of the present invention can use the dry heating radiation temperature of the electric heating tube to keep warm, without continuously heating and boiling water vapor, so as to achieve the function of heat keeping or humidity keeping. the

The content described in the embodiments of this specification is only an enumeration of the implementation forms of the utility model concept. The protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the present invention also extends to the field Equivalent technical means that the skilled person can think of based on the concept of the present invention. the

Claims (8)

1. The steam generating device of the electric steamer, including the water tank and the heating device in the water tank, It is characterized in that: an energy-concentrating cup is fixed in the water tank, and a water delivery channel for sending the water in the water tank into the energy-collecting cup is arranged in the water tank, and an on-off valve is provided in the water delivery channel; The heating device is located in the energy-concentrating cup, and the energy-concentrating cup is provided with a top opening that allows the steam to output outward; the heat-concentrating cup is equipped with a radiator, and the radiator includes an inverted cup-shaped base, and the heat-conducting material on the base The supporting rod and the cooling fins fixed on the supporting rod, the water tank is composed of the inner water tank shell and the outer water tank shell, and there is an accommodating cavity for accommodating the water delivery channel between the inner water tank shell and the outer water tank shell , the inner water tank shell forms a container for holding water, and the outer water tank shell forms the shell of the electric steamer; one end of the water delivery channel extends from the inner water tank shell into the inner cavity of the water tank, and the other end extends from the inner shell of the energy-concentrating cup The bottom of the body extends into the inner cavity of the energy-concentrating cup. 2. The steam generating device of an electric steamer according to claim 1, characterized in that: the cup body of the energy gathering cup is provided with a heat insulating layer, and the top opening of the energy gathering cup is provided with a filter screen. 3. The steam generating device of an electric steamer according to claim 2, wherein the energy collecting cup comprises an inner shell and an outer shell, and there is a cavity between the inner shell and the outer shell, The cavity is filled with heat insulating material; the bottom of the inner shell is closed, and the bottom of the outer shell is sealed and connected with the inner bottom surface of the water tank. 4. The steam generating device for an electric steamer according to any one of claims 1-3, characterized in that the cooling fins are evenly distributed along the length direction of the support rod. 5 . The steam generating device for an electric steamer according to claim 4 , wherein the cooling fins are annular, and a plurality of support rods are evenly distributed along the circumference of the cooling fins. 5 . 6. The steam generating device of an electric steamer as claimed in claim 5, characterized in that: the radiating fins are linear fins, the support bar and the radiating fins on the support bar form a radiating unit, and the radiator consists of multiple It is composed of two heat dissipation units, and the heat dissipation units are evenly distributed around the heating device. 7. The steam generating device of an electric steamer according to claim 6, wherein the water delivery pipeline includes a water inlet joint connected to the inner water tank shell, and a water delivery joint connected to the inner shell of the energy-concentrating cup And the first connecting pipe connecting the on-off valve and the water inlet joint, and the second connecting pipe connecting the on-off valve and the water delivery joint; a sealing ring is provided between the water inlet joint and the inner water tank shell, and the water delivery joint and the energy gathering A sealing ring is also provided between the inner shells of the cup. 8. The steam generating device for an electric steamer according to claim 1, wherein a liquid level detector is provided in the water tank.