Steam generating device and household appliance

Abstract

The utility model discloses a steam generating device and a household appliance, relates to the field of steam generating devices, and adopts the technical scheme that the steam generating device comprises a steam generator, a water tank and a connecting pipe, a main body part and at least one first part communicated with the main body part are arranged in the connecting pipe, and the first part protrudes relative to the main body part. A main body part and a first part protruding relative to the main body part are arranged in the connecting pipe, and in one specific structure, the first part protrudes on the upper side of the main body part in the relative height direction. The distance between the first part and the main body part is increased. When the liquid level in the steam generator is lowered to be lower than the relatively high first part in the connecting pipe, steam flows to the water tank from the relatively high first part in the form of bubbles. And water in the water tank can flow back to the steam generator from the lower main body part, so that the obstruction of countercurrent steam on water replenishing of the water tank is reduced.

Description

Technical Field

[0001] The utility model relates to the field of steam generating devices, in particular to a steam generating device and a household appliance. Background Art

[0002] Steam generators are widely used in various household appliances, such as steam cleaners, steam irons, steam ovens, etc. Steam generators are usually equipped with a water tank, which is used to replenish water for the steam generator and is connected to the steam generator through a pipeline.

[0003] When the steam generator is in use, the water inside is heated and boils to become steam. Part of the steam generated by the boiling will enter the pipeline, forming bubbles that flow in the opposite direction in the pipeline, increasing the resistance to the water replenishment flowing from the water tank to the steam generator side. Utility Model Content

[0004] The utility model aims to provide a steam generating device, which has the advantage of reducing the water filling resistance of a water tank.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A steam generating device comprises a steam generator, a water tank and a connecting pipe; the connecting pipe comprises a main body part and at least one first part connected with the main body part, wherein the first part protrudes relative to the main body part.

[0007] Further configuration: also includes a second part protruding relative to the main body part.

[0008] It is further configured that the height of the second part protruding relative to the main body part is lower than that of the first part.

[0009] It is further configured that the first part and the second part are located on the same side.

[0010] It is further configured that the first part and the second part are located on opposite sides respectively.

[0011] It is further configured that the volume of the main body portion is greater than or equal to the volume of the first portion.

[0012] It is further configured that the highest point of the first part is not higher than 50% of the height of the steam generator.

[0013] Further configuration: the water tank is detachably arranged on the steam generator.

[0014] Further configuration: it also includes a connecting plate suitable for connecting the water tank and the steam generator, and the connecting pipe is arranged on the connecting plate.

[0015] A household appliance is provided with the steam generating device mentioned above.

[0016] Further configuration: the household appliance is one of a clothes drying machine, a hanging iron, a humidifier, a steam cleaner, a steam iron, and a steam oven.

[0017] In summary, the utility model has the following beneficial effects:

[0018] First, in the utility model, the connecting pipe has a main body and a first part protruding relative to the main body. In a specific structure, the first part protrudes above the main body in the relative height direction. The distance between the first part and the main body is increased. When the liquid level in the steam generator drops below the relatively high first part in the connecting pipe, the steam flows from the higher first part to the water tank in the form of bubbles. The water in the water tank will flow back to the steam generator from the lower main body, reducing the obstruction of the backflow steam to the water tank replenishment.

[0019] Secondly, in the utility model, the main body is also provided with a second part. After the second part is added, on the one hand, the steam is mostly gathered at the first part with a higher height, and the second part increases the flow space of the water body with a lower height, reduces the contact between the water body and the countercurrent steam, and reduces the resistance of the countercurrent steam. In addition, the center of the water flow is made to approach the second part, thereby further away from the countercurrent steam, reducing the resistance of the countercurrent steam to the water flow.

[0020] Third, in the present invention, the highest point of the first part of the connecting pipe is set below 50% of the steam generator, which helps to effectively control the situation where boiling water is sprayed out with the steam. When the steam generator is working, the steam generated may carry some moisture. If the highest point of the first part of the connecting pipe is set too high, boiling water may be sprayed out with the steam, causing unnecessary energy loss and safety hazards. Therefore, limiting it below this height can effectively avoid this situation.

[0021] Fourth, in the prior art, the water added to the water tank in China is usually room temperature water, and the working temperature of the steam generator needs to be close to the boiling temperature. The added room temperature water can easily cause a sudden drop in the working temperature of the steam generator, affecting the continuous steam injection. The connecting pipe of the present application can be used to connect the water tank and the steam generator. The two parts of water replenishment and steam reflux are respectively located in the main part and the first part, and the paths of the two do not interfere with each other. The steam reflux brings the heat of the steam generator into the water tank from the first part. After the temperature of the water tank rises, the heat flow at the bottom replenishes water from the main part to the steam generator, thereby quickly reaching the boiling temperature and continuously outputting steam. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of a steam generating device;

[0023] Figure 2 It is a schematic diagram of the structure of the connecting pipe;

[0024] Figure 3 is a structural schematic diagram of a first preferred embodiment of a connecting pipe;

[0025] Figure 4 is a structural schematic diagram of a second preferred embodiment of the connecting pipe;

[0026] Figure 5 is a structural schematic diagram of a third preferred embodiment of a connecting pipe;

[0027] Figure 6 is a structural schematic diagram of a fourth preferred embodiment of the connecting pipe;

[0028] Figure 7 It is a schematic diagram of the water flow direction of the steam generating device;

[0029] In the figure, 100, steam generator; 101, main body; 102, first part; 103, second part;

[0030] 200, water tank; 300, connecting pipe; 301, connecting plate; 400, valve. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] A steam generating device, such as Figure 1 As shown, it includes a steam generator 100 and a water tank 200. The steam generator 100 has a water storage chamber inside, that is, a water storage steam generator 100. A certain amount of water can be stored inside the steam generator 100 for continuous boiling to generate steam.

[0034] Generally, the capacity of the water storage chamber of the steam generator 100 is limited, the capacity of the water tank 200 is greater than the capacity of the water storage chamber of the steam generator 100, and the water tank 200 has sufficient water pressure to flow water to one side of the steam generator 100. As an alternative embodiment, the water storage capacity of the water tank 200 and the steam generator 100 is the same, or the capacity of the water tank 200 is less than the capacity of the steam generator 100. A connecting pipe 300 is provided between the steam generator 100 and the water tank 200, and the steam generator 100 and the water tank 200 are connected through the connecting pipe 300. The connecting pipe 300 has a main body 101 and a first part 102 protruding relative to the main body 101. There is no specific limitation on the specific setting position of the connecting pipe 300. In this embodiment, the connecting pipe 300 can be an independent pipeline, which is arranged between the steam generator 100 and the water tank 200, or it can be integrally arranged on the steam generator 100, or integrally arranged on the water tank 200.

[0035] The specific shape of the first portion 102 protruding from the main body 101 is not limited. In this embodiment, the first portion 102 protrudes relatively on the upper side of the main body 101. As an alternative embodiment, the first portion 102 protrudes relatively on the lower side of the main body 101.

[0036] refer to Figure 3 , the first part 102 protrudes relative to the main part 101 to form a special-shaped tube, and the main part 101 is the part shown by the dotted line. There is no restriction on the specific shape of the main part 101. The main part 101 is a regular and continuous geometric figure, such as a triangle, a bar, a circle, a semicircle, a square, a rectangle, a trapezoid, and a polygon. There is no restriction on the specific shape of the first part 102. The first part 102 is a regular and continuous figure that destroys the main part 101, such as any protruding area on the upper side of the main part 101, the area of ​​the area is smaller than the area of ​​the main part 101, and the shape of the area can be a regular geometric figure. For example, a triangle, a bar, a circle, a semicircle, a square, a rectangle, a trapezoid, and a polygon. From a general perspective, the main part 101 and the first part 102 are composite figures spliced ​​together by two geometric figures, with an easily distinguishable dividing line. Therefore, the composite figure described above in the cross section is a special-shaped tube. It should be noted that in Figure 3 , Figure 4 and Figure 5 In the figure, there is a gap between the dotted line and the inner wall of the connecting pipe 300. This part is only for the convenience of distinguishing the shape of the main part 101 in the figure. There is no specific restriction on the area. In actual application, it should be understood as a gap-free part.

[0037] A water pump is usually required between the water tank 200 and the steam generator 100 as a power source to drive water replenishment, and a valve 400 is provided on the connecting pipe 300 of the water pump. When the steam generator 100 generates a large amount of steam during operation, when the amount of water is insufficient and water replenishment is required, the valve 400 needs to be opened and the water pump needs to be turned on for water replenishment. During the water replenishment process, the resistance formed by the backflow of steam can be solved by a special-shaped pipe. For example, the special-shaped structure formed by the main part 101 and the first part 102 of the connecting pipe 300. Through the main part 101 and the first part 102 of different heights, during the water replenishment process, the distance between the water replenishment water flow part and the steam reflux part in the connecting pipe 300 becomes larger, and the resistance of the steam reflux becomes smaller, thereby making the water replenishment water flow more sustainable.

[0038] Furthermore, the water tank 200 can also be replenished without a water pump, such as Figure 2 and Figure 7 As shown, the water replenishment process of the water tank 200 and the steam generator 100 without a water pump: when the water tank 200 is installed to replenish the steam generator 100, the water in the water tank 200 enters the steam generator 100 through the connecting pipe 300, and the water in the water storage chamber of the steam generator 100 reaches the highest point of the first part 102 of the connecting pipe 300, which is the highest water level. The water pressure on both sides of the water tank 200 and the water storage chamber reaches a balanced state near this water level line, and the highest water level of the water storage chamber will stabilize near this height. At this time, the liquid level in the water tank 200 is not lower than the liquid level of the water in the evaporator.

[0039] When the steam generator 100 is powered on for heating, the water inside is heated and boiled to become steam. When it just starts working, the high pressure inside the steam generator 100 will suppress the water in the water tank 200 from entering. As the water inside the steam generator 100 evaporates over the working time, the liquid water gradually turns into steam, the water storage inside the steam generator 100 decreases, and the air pressure inside the steam generator 100 decreases accordingly, and then the water in the water tank 200 flows into the steam generator 100 to replenish water. In this process, the water storage inside the steam generator 100 decreases, and a certain gap is formed between the first part 102 of the connecting pipe 300 of the steam generator 100 and the highest water level. During the boiling process, the steam generator 100 generates a certain amount of bubbles on the surface, and the bubbles flow from the first part 102 to one side of the water tank 200, and the water in the water tank 200 enters the steam generator 100 from the main part 101 of the connecting pipe 300 to replenish water. This process is continuous and will not cause the interruption of water flow due to the formation of bubbles. Therefore, the generation of steam can maintain continuity, thereby solving the problem of discontinuous steam generation.

[0040] Based on the above embodiment, as a further limited embodiment, the steam generating device further comprises a second portion 103 protruding relative to the main portion 101. In this embodiment, the height of the second portion 103 protruding relative to the main portion 101 is lower than that of the first portion 102.

[0041] There is no specific limitation on the locations of the first portion 102 and the second portion 103. In this embodiment, the first portion 102 and the second portion 103 are located on the same side. Figure 3 From the perspective shown, the first part 102 and the second part 103 are both located on the upper side of the connecting pipe 300. There is no restriction on the shape of the second part 103. In this embodiment, the second part 103 is a regular continuous geometric figure, such as a triangle, a strip, a circle, a semicircle, a square, a rectangle, a trapezoid, and a polygon. Among them, the shapes of the first part 102 and the second part 103 can be the same or different. After adding the second part 103, on the one hand, the steam is mostly gathered at the first part 102 with a higher height, and the second part 103 increases the flow space of the water body with a lower height, reduces the contact between the water body and the countercurrent steam, and reduces the resistance of the countercurrent steam. And make the center of the water body flow close to the second part 103, so as to further move away from the countercurrent steam and reduce the resistance of the countercurrent steam to the water flow. As an alternative embodiment, there is no restriction on the number of the second part 103, and when the number increases, it can be called the third part, the fourth part, etc. As an alternative embodiment, the first part 102 and the second part 103 are located on opposite sides respectively. The first portion 102 is located at the upper side of the connecting pipe 300, and the second portion 103 is located at the lower side of the connecting pipe 300. Figure 4 The first portion 102 and the second portion 103 may be asymmetrical structures, the cross-sectional shape of the first portion 102 of the connecting tube 300 is a triangle, and the cross-sectional shape of the second portion is a rectangle.

[0042] As an alternative embodiment, the first portion 102 and the second portion 103 may be symmetrical structures. Figure 5 The first part 102 and the second part 103 are arranged in a semicircular shape and can be on the same straight line or inclined to each other. Figure 6 The first part 102 and the second part 103 are arranged in a semicircular shape, and the middle part is blocked by a partition that is not completely closed. The first part 102 and the second part 103 are isolated from each other, and the anti-interference performance is better.

[0043] Furthermore, in the above embodiment, the volume of the main body portion 101 is greater than or equal to the volume of the first portion 102 , so that more fluid can pass through the main body portion 101 .

[0044] In one embodiment, the steam generating device of the above embodiment is applied in a clothes drying machine to provide steam for the steam care function of the clothes drying machine. In order to reduce the thickness of the module, the height of the steam generator 100 is limited to a certain extent. In order to ensure sufficient supply of steam, it is necessary to have enough water in the steam generator 100. The height of the first part 102 of the connecting pipe 300 determines the highest water level in the steam generator 100. The height of the highest point of the first part 102 refers to the highest point of the top wall. In this embodiment, the ratio of the height of the first part 102 of the connecting pipe 300 located on the steam generator 100 to the overall height of the steam generator 100 is greater than 0% and less than or equal to 60%. In another alternative embodiment, the ratio of the height of the first part 102 of the connecting pipe 300 located on the evaporator to the overall height of the evaporator exceeds 60%. At this time, the water in the water storage chamber is easy to overflow when boiling, and thus sprayed onto the clothes with the steam. Based on the above embodiment, as a preferred embodiment, the height of the first portion 102 of the connecting pipe 300 located on the steam generator 100 is 50% of the overall height of the steam generator 100. In this case, sufficient water supply can be ensured, and water droplets can be prevented from splashing out of the steam generator 100.

[0045] Generally, the water storage height of a conventional evaporator is approximately equal to the evaporator height. In the case of a special evaporator with thicker walls, the water storage height shall prevail. At this time, the position of the first portion 102 of the connecting pipe 300 should be understood as the ratio of the water storage height.

[0046] On the basis of the above implementation manner, as a further limited implementation manner, Figure 7 As shown, the water tank 200 is detachably arranged on the steam generator 100. The steam generating device also includes a connecting plate 301, and the connecting pipe 300 is arranged on the connecting plate 301, and the connecting plate 301 is located between the water tank 200 and the steam generator 100. With such a configuration, the existing water storage steam generator 100 can be directly used. There is no need to customize the water storage steam generator 100, and the connecting pipe 300 is arranged on the connecting plate 301, and a connecting plate 301 transition is added to complete the required docking function. Reduce the cost investment in improving the water storage steam generator 100. As an alternative embodiment, the connecting pipe 300 is integrally connected to the water tank 200 and the steam generator 100 respectively. As an alternative embodiment, the connecting pipe 300 is integrally connected to the water tank 200 and is detachably connected to the steam generator 100. As an alternative embodiment, the connecting pipe 300 is integrally connected to the steam generator 100 and is detachably connected to the water tank 200.

[0047] The steam generating device further comprises a valve 400, which has a first position for closing the connecting pipe 300 and a second position for opening the connecting pipe 300. The specific structure of the valve 400 is not limited, and the valve 400 can be a mechanical pressing valve 400 or an electronic valve 400.

[0048] The specific application scenarios and application methods of the steam generating device in the above embodiment are not specifically limited. This embodiment also provides a household appliance with the above steam generating device. In this embodiment, the household appliance is one of a clothes drying machine, a hanging iron, a humidifier, a steam cleaner, a steam iron, and a steam oven.

[0049] The above-mentioned embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A steam generating device, comprising a steam generator (100), a water tank (200) and a connecting pipe (300); characterized in that: The connecting pipe (300) comprises a main body portion (101) and at least one first portion (102) communicating with the main body portion (101), wherein the first portion (102) protrudes relative to the main body portion (101).

2. The steam generating device according to claim 1, characterized in that: It also includes a second portion (103) protruding relative to the main portion (101).

3. The steam generating device according to claim 2, wherein the height at which the second portion (103) protrudes relative to the main body portion (101) is lower than that of the first portion (102).

4. The steam generating device according to claim 2 or 3, characterized in that: The first portion (102) and the second portion (103) are located on the same side.

5. The steam generating device according to claim 2 or 3, characterized in that: The first part (102) and the second part (103) are located on opposite sides respectively.

6. The steam generating device according to any one of claims 1 to 3, characterized in that: The volume of the main part (101) is greater than or equal to the volume of the first part (102).

7. The steam generating device according to any one of claims 1 to 3, characterized in that: The highest point of the first portion (102) is no higher than 50% of the height of the steam generator (100).

8. The steam generating device according to any one of claims 1 to 3, characterized in that: The water tank (200) is detachably arranged on the steam generator (100).

9. The steam generating device according to claim 8, characterized in that: It also includes a connecting plate (301) suitable for connecting the water tank (200) and the steam generator (100), and the connecting pipe (300) is arranged on the connecting plate (301).

10. A household appliance, characterized in that: A steam generating device according to any one of claims 1 to 9.

11. The household appliance according to claim 10, characterized in that: The household appliance is one of a clothes drying machine, a hanging iron, a humidifier, a steam cleaner, a steam iron, and a steam oven.

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