Steam generating device

Abstract

The utility model discloses a steam generating device, which comprises a heating body, a steam generator and a steam generator, a vaporization cavity is formed in the heating body, a water inlet and a steam outlet which are communicated with the vaporization cavity are formed in the heating body, a heating module is arranged in the heating body, and liquid flow in the vaporization cavity is heated and vaporized by the heating module; the preheating pipe is installed on the heating body and is adjacent to the heating module, the heating module preheats liquid flow in the preheating pipe, and a liquid outlet of the preheating pipe is communicated with the water inlet; and a water outlet of the water supply assembly is communicated with a liquid inlet of the preheating pipe. Preferably, the preheating pipe is a U-shaped hollow pipe and is detachably assembled on the lower end face of the heating body. According to the technical scheme, water flow in the vaporizing cavity is fully heated and vaporized, the situation that water is sprayed when steam is released is effectively improved, the vaporizing device is particularly suitable for products with small heating body overall structures and short vaporizing channels in the vaporizing cavity, and the vaporizing rate can be effectively increased.

Description

Technical Field

[0001] The utility model relates to the technical field of steam equipment, in particular to a steam generating device. Background Art

[0002] The steam brush is also called a handheld steam ironing brush. Because of its light structure and comfortable grip, it is deeply favored by consumers. Compared with conventional ironing equipment, the overall structure of the steam brush is smaller and more compact, which greatly reduces the volume of the vaporization chamber in its heating body and shortens the vaporization flow path therein. As a result, it is easy for the degree of steam vaporization to be not high, and even the steam ejected from the steam outlet is accompanied by unvaporized liquid flow. Summary of the Utility Model

[0003] In view of the above problems existing in the prior art, a steam generating device is provided herein, aiming to effectively enhance the vaporization rate and overcome at least one of the above technical defects.

[0004] The specific technical solutions are as follows:

[0005] A steam generating device includes:

[0006] A heating body, which internally forms a vaporization chamber and has a water inlet and a steam outlet communicating with the vaporization chamber. A heating module is arranged in the heating body, and the liquid flow in the vaporization chamber is heated and vaporized by the heating module;

[0007] A preheating pipe, which is installed on the heating body and adjacent to the heating module, and the liquid flow in the preheating pipe is preheated by the heating module. The liquid outlet of the preheating pipe is communicated with the water inlet;

[0008] A water supply assembly, whose water outlet is communicated with the liquid inlet of the preheating pipe.

[0009] Preferably, the preheating pipe is a "U"-shaped hollow pipe and is detachably assembled on the lower end surface of the heating body.

[0010] Preferably, the heating module is an electric heating pipe embedded in the heating body and is integrally in a "U" shape.

[0011] Preferably, the water supply assembly includes a water pump, and the water outlet of the water pump is communicated with the liquid inlet of the preheating pipe through a first connecting pipe, and the liquid outlet of the preheating pipe is communicated with the water inlet of the heating body through a second connecting pipe.

[0012] Preferably, a labyrinth flow path is formed in the vaporization chamber, and the vaporization starting point of the labyrinth flow path is located directly below the water inlet, and the vaporization ending point of the labyrinth flow path is located directly above the steam outlet.

[0013] Preferably, the labyrinth flow channel includes a surrounding wall and an arc-shaped flow blocking ring formed in the vaporization chamber, the surrounding wall is in a "U" shape as a whole and separates the vaporization starting point and the vaporization end point, the arc-shaped flow blocking ring is arranged in the area surrounded by the surrounding wall, and the vaporization starting point is located between the arc-shaped flow blocking ring and the inner side wall of the surrounding wall, so that the liquid flow in the area surrounded by the surrounding wall flows around the two sides of the arc-shaped flow blocking ring to diffuse and then converge and flow out from the opening of the surrounding wall;

[0014] A symmetrical flow passage is formed between the outer wall of the surrounding wall and the inner wall of the vaporization chamber, so that the liquid flow out of the surrounding wall is redistributed to the two flow passages and finally transported to the vaporization end point and ejected from the steam outlet.

[0015] Preferably, the two opposite side walls of the surrounding wall converge in opposite directions in their extending direction, so that the area surrounded by the surrounding wall has a small outlet and a large position near the vaporization starting point, and the two flow channels have a large inlet and a gradually decreasing outlet.

[0016] Preferably, two opposite side walls of the surrounding wall are respectively formed with flanges in opposite directions near the opening.

[0017] Preferably, the heating element further comprises a detachable end cover, and the end cover seals the vaporization cavity, and the water inlet is arranged on the end cover.

[0018] Preferably, a water inlet connector is detachably mounted on the end cover, and the end of the second connecting tube facing away from the preheating tube is connected to the water inlet connector.

[0019] The beneficial effects of the above technical solution are:

[0020] (1) The steam generating device includes a heating element, a heating module, a preheating tube, and a water supply component. The heating element is formed with a vaporization chamber, a water inlet, and a steam outlet. The water delivered to the preheating tube by the water supply component is preheated by the heating module, and then flows into the vaporization chamber through the water inlet for vaporization and then is ejected from the steam outlet, so that the water flow in the vaporization chamber is fully heated and vaporized, effectively improving the situation of water spraying when releasing steam. It is particularly suitable for products with a small overall structure of the heating element and a short vaporization channel in the vaporization chamber, and can effectively enhance the vaporization rate.

[0021] (2) The unique labyrinth flow channel design in the vaporization chamber can make the water vapor stagnate and tumble in the vaporization chamber. The smooth chamber wall and the structure with a large inlet and a gradually smaller outlet are conducive to removing some scale and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the steam generating device of the utility model;

[0023] Figure 2 A three-dimensional diagram of the steam generating device of the utility model from another perspective;

[0024] Figure 3 This is a perspective view of the outer housing of the steam generating device of the present utility model being removed;

[0025] Figure 4 This is a perspective view of the heating element in the steam generating device of the present utility model;

[0026] Figure 5 This is a top view of the heating element of the steam generating device of the present utility model;

[0027] Figure 6 is Figure 5 side cross-sectional view. Specific embodiments

[0028] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the following embodiments will specifically describe the present utility model in conjunction with the accompanying drawings. And it is defined that the direction perpendicular to the paper surface and inward as shown in Figure 5 the paper surface is the direction from top to bottom in this embodiment.

[0029] Referring to Figures 1 to 6 as shown in, the steam generating device provided in this embodiment includes:

[0030] A heating element 1, which internally forms a vaporization chamber 2 and has a water inlet and a steam outlet 10 communicating with the vaporization chamber 2, and a heating module 3 is disposed in the heating element 1, and the liquid flow in the vaporization chamber 2 is heated and vaporized by the heating module 3;

[0031] A preheating pipe 4, which is installed on the heating element 1 and adjacent to the heating module 3, and the liquid flow in the preheating pipe 4 is preheated by the heating module 3, and the liquid outlet of the preheating pipe 4 is communicated with the water inlet;

[0032] A water supply assembly 5, whose water outlet is communicated with the liquid inlet of the preheating pipe 4.

[0033] Based on the above technical solution, the steam generating device includes a heating element 1, a heating module 3, a preheating pipe 4, and a water supply assembly 5. A vaporization chamber 2, a water inlet, and a steam outlet 10 are formed in the heating element 1. The water sent into the preheating pipe 4 by the water supply assembly 5 is preheated by the heating module 3, and then flows into the vaporization chamber 2 through the water inlet to be vaporized and then ejected from the steam outlet 10, so that the water flow in the vaporization chamber 2 is fully heated and vaporized, effectively improving the situation of water spraying when releasing steam. It is especially suitable for products with a relatively small overall structure of the heating element 1 and a relatively short vaporization channel in the vaporization chamber 2, and can effectively enhance the vaporization rate.

[0034] In a preferred embodiment, specifically as Figure 3 and Figure 4As shown in the figure, the preheating tube 4 is a "U"-shaped hollow tube, and is detachably mounted on the lower end surface of the heating element 1. Furthermore, the heating module 3 is an electric heating tube embedded in the heating element 1, and is in a "U" shape as a whole, but obviously, the heating module 3 can also be other structures such as a disc-type electric heating tube or a graphene heating sheet, and is not limited thereto.

[0035] As a further preferred embodiment, the water supply assembly 5 includes a water pump, and the water outlet of the water pump is connected to the liquid inlet of the preheating tube 4 through the first connecting pipe 6. Further, the liquid outlet of the preheating tube 4 is connected to the water inlet of the heating element 1 through the second connecting pipe 7. The connecting pipe makes the connection structure between the components unnecessary to be too compact.

[0036] In a preferred embodiment, the combination Figure 4 , Figure 5 as well as Figure 6 As shown in Figure 5 The arrow direction shown in the figure is the flow direction of the liquid in the vaporization chamber 2. A labyrinth flow channel is formed in the vaporization chamber 2, and the vaporization starting point 12 of the labyrinth flow channel is located directly below the water inlet, and the vaporization end point 13 of the labyrinth flow channel is located directly above the steam outlet 10. Furthermore, the labyrinth flow passage includes a surrounding wall 8 and an arc-shaped flow blocking ring 11 formed in the vaporization chamber 2. The surrounding wall 8 is in a "U" shape as a whole and separates the vaporization starting point 12 and the vaporization end point 13. The arc-shaped flow blocking ring 11 is arranged in the area surrounded by the surrounding wall 8, and the vaporization starting point 12 is located between the inner side wall of the arc-shaped flow blocking ring 11 and the surrounding wall 8, so that the liquid flow in the area surrounded by the surrounding wall 8 is diffused around the two sides of the arc-shaped flow blocking ring 11 and then converged and flows out from the opening of the surrounding wall 8. A symmetrical flow passage 14 is formed between the outer side wall of the surrounding wall 8 and the inner wall of the vaporization chamber 2, so that the liquid flow flowing out of the surrounding wall 8 is dispersed to the two flow passages 14 again and finally transported to the vaporization end point 13 and ejected from the steam outlet 10. This allows a long vaporization flow passage to be provided in a compact structural environment, which is beneficial to enhancing the vaporization rate. Furthermore, the two opposite side walls of the surrounding wall 8 converge in opposite directions in the direction of their extension, so that the area surrounded by the surrounding wall 8 has a small outlet and a large position near the vaporization starting point 12, and the two flow passages 14 have a large inlet and a gradually decreasing outlet structure, which is conducive to taking away some scale and extending the service life. Furthermore, the two opposite side walls of the surrounding wall 8 are respectively formed with flanges 15 in opposite directions near the opening, which promotes the water vapor to further stagnate and tumble in the area surrounded by the surrounding wall 8, which is conducive to improving the vaporization rate.

[0037] In a preferred embodiment, the heating element 1 further comprises a detachable end cap 18, and the end cap 18 closes the vaporization chamber 2, and the water inlet is provided on the end cap 18. Furthermore, a water inlet connector 9 is also detachably mounted on the end cap 18, and the end of the second connecting pipe 7 away from the preheating pipe 4 is connected to the water inlet connector 9. Furthermore, in combination withFigure 6 As shown, the front end of the heating element 1 is formed with a steam outlet 16 that communicates with the steam outlet 10. Further, the water supply assembly 5 is a water pump. Further, the steam generating device further includes a housing 17 assembled outside the heating element 1.

[0038] It is worth pointing out that this solution is mainly applied to a handheld steam brush, which can improve the vaporization rate in the vaporization chamber 2 when the overall structure is small and compact, and the water flow in the preheating tube 4 can be preheated to more than 80 degrees, but it can be adjusted according to specific requirements, and the application environment is not limited to this. In addition, a thermostat is arranged on the lower end surface of the heating element 1, and a temperature sensor is correspondingly arranged, which is a conventional design in this field, so it is omitted here.

[0039] The above are only the preferred embodiments of the present invention, which are illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. A steam generating device, characterized in that: include: A heating element (1) has a vaporization chamber (2) formed therein and has a water inlet and a vapor outlet (10) connected to the vaporization chamber (2). A heating module (3) is arranged inside the heating element (1) and the heating module (3) heats and vaporizes the liquid flow in the vaporization chamber (2); A preheating tube (4) is installed on the heating element (1) and adjacent to the heating module (3), and the heating module (3) preheats the liquid flow in the preheating tube (4), and the liquid outlet of the preheating tube (4) is connected to the water inlet; A water supply component (5) has a water outlet which is in communication with the liquid inlet of the preheating tube (4).

2. The steam generating device according to claim 1, characterized in that: The preheating tube (4) is a U-shaped hollow tube and can be detachably mounted on the lower end surface of the heating element (1).

3. The steam generating device according to claim 2, characterized in that: The heating module (3) is an electric heating tube embedded in the heating element (1), and is in a "U" shape as a whole.

4. The steam generating device according to claim 1, characterized in that: The water supply assembly (5) comprises a water pump, and the water outlet of the water pump is connected to the liquid inlet of the preheating tube (4) through a first connecting pipe (6), and the liquid outlet of the preheating tube (4) is connected to the water inlet of the heating element (1) through a second connecting pipe (7).

5. The steam generating device according to claim 1, characterized in that: A labyrinth-like flow channel is formed in the vaporization chamber (2), and a vaporization starting point (12) of the labyrinth-like flow channel is located directly below the water inlet, and a vaporization end point (13) of the labyrinth-like flow channel is located directly above the steam outlet (10).

6. The steam generating device according to claim 5, characterized in that: The labyrinth flow passage comprises a surrounding wall (8) and an arc-shaped flow blocking ring (11) formed in the vaporization chamber (2); the surrounding wall (8) is in a "U" shape as a whole and separates the vaporization starting point (12) and the vaporization end point (13); the arc-shaped flow blocking ring (11) is arranged in the area surrounded by the surrounding wall (8), and the vaporization starting point (12) is located between the arc-shaped flow blocking ring (11) and the inner side wall of the surrounding wall (8), so that the liquid flow in the area surrounded by the surrounding wall (8) flows around the two sides of the arc-shaped flow blocking ring (11) to diffuse and then converge and flow out from the opening of the surrounding wall (8); A symmetrical flow passage (14) is formed between the outer wall of the surrounding wall (8) and the inner wall of the vaporization chamber (2), so that the liquid flow out of the surrounding wall (8) is redistributed to the two flow passages (14) and finally transported to the vaporization end point (13) and ejected from the steam outlet (10).

7. The steam generating device according to claim 6, characterized in that: The two opposite side walls of the surrounding wall (8) converge in opposite directions in the direction of their extension, so that the area surrounded by the surrounding wall (8) has a structure with a small outlet and a large position close to the vaporization starting point (12), and the two flow passages (14) have a structure with a large inlet and a gradually decreasing outlet.

8. The steam generating device according to claim 7, characterized in that: Two opposite side walls of the surrounding wall (8) are respectively provided with flanges (15) in opposite directions at positions adjacent to the opening.

9. The steam generating device according to claim 4, characterized in that: The heating element (1) further comprises a detachable end cover (18), and the end cover (18) seals the vaporization chamber (2), and the water inlet is opened on the end cover (18).

10. The steam generating device according to claim 9, characterized in that: The end cover (18) is also detachably mounted with a water inlet connector (9), and the end of the second connecting pipe (7) facing away from the preheating pipe (4) is connected to the water inlet connector (9).

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