Steam generator

Abstract

The utility model relates to a steam generator which comprises a generator main body, the generator main body comprises a heat conduction disc and an upper cover, the generator main body is provided with a steam generation cavity, one side of the heat conduction disc back to the upper cover is provided with an electric heating body, the outer side of the electric heating body is provided with a flow guide pipe, and the outer side surface of the electric heating body is fixedly connected with the heat conduction disc and the flow guide pipe respectively. The water inlet end of the flow guide pipe is connected with a water supply mechanism, the water outlet end of the flow guide pipe is communicated with the steam generation cavity of the water boiling cavity, and the flow guide pipe can preheat liquid through waste heat of the electric heating body, so that the efficiency of heating the liquid through the heat conduction disc to generate steam is higher, and the overall energy efficiency of a product is improved; and meanwhile, the flow guide pipe can cool the electric heating body, so that the probability that the electric heating body and surrounding elements are damaged due to overhigh temperature is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a steam generator. Background Art

[0002] A steam generator generally includes a heating element, which can use electrical energy to heat water into steam. Steam generators are often used in household appliances such as steam ovens and steam furnaces.

[0003] However, some of the heat from the heating element cannot be conducted into the kettle body through the heat conduction plate. This heat can only be dissipated to other spatial locations through thermal radiation. It can neither be effectively utilized, resulting in low overall energy efficiency of the electric kettle, nor easily cause surrounding components to overheat and affect their service life.

[0004] Therefore, further improvement is needed. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a steam generator that improves the overall energy efficiency and service life of the equipment.

[0006] The purpose of this utility model is achieved in this way:

[0007] A steam generator comprises a generator body, which comprises a heat conducting plate and an upper cover. The generator body has a steam generating chamber. An electric heating element is provided on the side of the heat conducting plate facing away from the upper cover. A flow guide tube is provided on the outer side of the electric heating element. The outer surface of the electric heating element is fixedly connected to the heat conducting plate and the flow guide tube respectively. The water inlet end of the flow guide tube is connected to a water supply mechanism, and the water outlet end of the flow guide tube is in conduction with the steam generating chamber of the water boiling chamber.

[0008] As a specific solution, the lower side of the electric heating element and the upper side of the flow guide tube are both planar and fixedly connected to each other.

[0009] As a specific solution, the water inlet end of the guide tube is provided with a water inlet bend, and the water inlet bend is tilted in a direction vertically away from the electric heating element.

[0010] As a specific solution, the water outlet end of the guide tube is provided with a water outlet bend, and the water outlet bend is tilted in a direction vertically away from the electric heating element.

[0011] As a specific solution, the cross-sectional width of the flow guide tube decreases from top to bottom.

[0012] As a specific solution, the outer sides of the guide tube and the electric heating element are connected with a card block, one side of the card block is open, the opening of the card block passes through the guide tube and the electric heating element in sequence and is sleeved on the outer sides of the guide tube and the electric heating element, and the inner side of the card block is tightly fitted with the guide tube and the electric heating element respectively.

[0013] As a specific solution, a heat-conducting baffle is provided on the inner side of the upper cover, and the steam generating chamber is arranged on the side of the upper cover corresponding to the heat-conducting baffle facing away from the heat-conducting plate, and the upper cover and the heat-conducting baffle are integrally formed.

[0014] As a specific solution, an exhaust pipe is provided on the upper cover, and the exhaust pipe is connected to the steam generating chamber.

[0015] As a specific solution, a sewage outlet and a water inlet are provided on the heat-conducting baffle, and the position of the heat-conducting baffle corresponding to the water inlet is raised toward the inner side of the steam generating chamber.

[0016] The beneficial effects of the utility model are:

[0017] By setting up a flow guide tube, the flow guide tube can use the waste heat of the electric heating element to preheat the liquid, so that the heat conduction plate can heat the liquid to generate steam more efficiently, thereby improving the overall energy efficiency of the product. At the same time, the flow guide tube can cool the electric heating element, reducing the chance of damage to the electric heating element itself and surrounding components due to excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional schematic diagram of the first embodiment of the present utility model.

[0019] Figure 2 This is a schematic structural diagram of the first embodiment of the present utility model.

[0020] Figure 3 It is a cross-sectional schematic diagram of the second embodiment of the present utility model. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] First embodiment:

[0023] See also Figure 1 、 Figure 2 The steam generator includes a generator body, which includes a heat conducting plate 1 and an upper cover 2. The generator body has a steam generating chamber 21. An electric heating element 3 is provided on the side of the heat conducting plate 1 facing away from the upper cover 2. A flow guide tube 4 is provided on the outside of the electric heating element 3. The outer surfaces of the electric heating element 3 are fixedly connected to the heat conducting plate 1 and the flow guide tube 4 respectively. The water inlet end of the flow guide tube 4 is connected to a water supply mechanism, and the water outlet end of the flow guide tube 4 is connected to the steam generating chamber 21 of the boiling water chamber. By setting the flow guide tube 4, the flow guide tube 4 can use the waste heat of the electric heating element 3 to preheat the liquid, so that the efficiency of the heat conducting plate 1 heating the liquid to generate steam is higher, thereby improving the overall energy efficiency of the product. At the same time, the flow guide tube 4 can cool the electric heating element 3, thereby reducing the probability of damage to the electric heating element 3 itself and surrounding components due to excessive temperature.

[0024] Furthermore, the lower side of the electric heating element 3 and the upper side of the flow guide tube 4 are both planar and fixedly connected to each other, thereby improving the stability of the connection between the electric heating element 3 and the flow guide tube 4 and achieving better heat conduction between the two.

[0025] Furthermore, the water inlet end of the guide tube 4 is provided with a water inlet bend 41, which is tilted vertically away from the electric heating element 3, so that the pipe connected to the water inlet end of the guide tube 4 can form a certain distance from the electric heating element 3, thereby reducing the probability of the pipe connected to the water inlet end of the guide tube 4 being deformed and damaged due to overheating.

[0026] Furthermore, the water outlet end of the guide tube 4 is provided with a water outlet bend 42, which is tilted vertically away from the electric heating element 3, so that the pipe connected to the water outlet end of the guide tube 4 can form a certain distance from the electric heating element 3, thereby reducing the probability of the pipe connected to the water outlet end of the guide tube 4 being deformed and damaged due to overheating.

[0027] Furthermore, the cross-sectional width of the flow guide tube 4 decreases from top to bottom, which relatively increases the contact area between the flow guide tube 4 and the electric heating element 3. At the same time, the heat dissipation area of the flow guide tube 4 is relatively reduced, and the waste heat of the electric heating element 3 can be used more efficiently to preheat the liquid.

[0028] Furthermore, the outer sides of the flow guide tube 4 and the electric heating element 3 are connected with a card block 5, one side of the card block 5 is open, and the opening of the card block 5 passes through the flow guide tube 4 and the electric heating element 3 in sequence and is sleeved on the outer sides of the flow guide tube 4 and the electric heating element 3, and the inner sides of the card block 5 are tightly matched with the flow guide tube 4 and the electric heating element 3 respectively, further improving the connection strength between the flow guide tube 4 and the electric heating element 3, which can not only ensure the heat transfer effect between the flow guide tube 4 and the electric heating element 3, but also make the equipment work more stably.

[0029] Furthermore, a heat-conducting baffle 22 is provided on the inner side of the upper cover 2, and the steam generating chamber 21 is arranged in the upper cover 2 on the side of the heat-conducting baffle 22 facing away from the heat-conducting plate 1. The upper cover 2 and the heat-conducting baffle 22 are integrally formed, and the liquid does not need to directly contact the heat-conducting plate 1, which further improves the safety of the equipment and reduces the chance of leakage in the steam generating chamber 21.

[0030] Furthermore, an exhaust pipe 23 is provided on the upper cover 2, and the exhaust pipe 23 is connected to the steam generating chamber 21, so that the steam can be discharged outward in a more concentrated manner.

[0031] Second embodiment:

[0032] See also Figure 3The difference between this embodiment and the first embodiment is that a drain port 221 and a water inlet 222 are provided on the heat-conducting partition 22 of the steam generator. The preheated liquid enters the steam generating chamber 21 from the water inlet 222 and forms water vapor after further heating. The drain port 221 and the water inlet 222 can facilitate the cleaning and replacement of the liquid in the steam generating chamber 21.

[0033] The position of the heat-conducting baffle 22 corresponding to the water inlet 222 is convex toward the inner side of the steam generating chamber 21 , so as to prevent the liquid in the steam generating chamber 21 from being accidentally discharged from the steam generating chamber 21 when sewage needs to be discharged.

[0034] The remaining undescribed parts are the same as those in the first embodiment and will not be repeated here.

[0035] The above embodiments are only preferred embodiments of the present invention, and other embodiments are possible. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope set by the claims of this application.

Claims

1. A steam generator, characterized in that: The invention comprises a generator body, wherein the generator body comprises a heat conducting plate (1) and an upper cover (2), the generator body having a steam generating chamber (21), an electric heating element (3) being provided on the side of the heat conducting plate (1) facing away from the upper cover (2), a flow guide tube (4) being provided on the outside of the electric heating element (3), the outer surface of the electric heating element (3) being fixedly connected to the heat conducting plate (1) and the flow guide tube (4), the water inlet end of the flow guide tube (4) being connected to a water supply mechanism, and the water outlet end of the flow guide tube (4) being in conduction with the steam generating chamber (21) of the water boiling chamber.

2. The steam generator according to claim 1, characterized in that: The lower side of the electric heating element (3) and the upper side of the flow guide tube (4) are both planar and are connected and fixed to each other.

3. The steam generator according to claim 1, characterized in that: The water inlet end of the guide tube (4) is provided with a water inlet bend (41), and the water inlet bend (41) is bends in a direction vertically away from the electric heating element (3).

4. The steam generator according to claim 1, characterized in that: The water outlet end of the guide tube (4) is provided with a water outlet bend (42), and the water outlet bend (42) is tilted in a direction vertically away from the electric heating element (3).

5. The steam generator according to claim 1, characterized in that: The cross-sectional width of the flow guide tube (4) decreases from top to bottom.

6. The steam generator according to claim 1, characterized in that: The outer sides of the flow guide tube (4) and the electric heating element (3) are connected with a card block (5), one side of the card block (5) is open, the opening of the card block (5) passes through the flow guide tube (4) and the electric heating element (3) in sequence and is sleeved on the outer sides of the flow guide tube (4) and the electric heating element (3), and the inner sides of the card block (5) are tightly matched with the flow guide tube (4) and the electric heating element (3).

7. The steam generator according to any one of claims 1 to 6, characterized in that: A heat-conducting baffle (22) is provided on the inner side of the upper cover (2), and the steam generating chamber (21) is provided on a side of the upper cover (2) corresponding to the heat-conducting baffle (22) facing away from the heat-conducting plate (1). The upper cover (2) and the heat-conducting baffle (22) are integrally formed.

8. The steam generator according to claim 7, characterized in that: An exhaust pipe (23) is provided on the upper cover (2), and the exhaust pipe (23) is communicated with the steam generating chamber (21).

9. The steam generator according to claim 7, characterized in that: The heat-conducting baffle (22) is provided with a sewage outlet (221) and a water inlet (222), and the position of the heat-conducting baffle (22) corresponding to the water inlet (222) is convex toward the inner side of the steam generating chamber (21).

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