Steam generator and steam cleaner
By designing the maze flow path structure in the steam generator and using the guide wall and partition wall to guide the flow of liquid, the problem of low heating efficiency of existing steam generators is solved, rapid and sufficient vaporization of liquid is achieved, and the steam generation rate and work are improved. efficiency.
Patent Information
- Application Number
- CN202420698857.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-07
AI Technical Summary
The existing steam generators have low heating efficiency for water, which makes it difficult for water to fully vaporize when it flows through the heater, affecting the working efficiency of the steam heater.
A steam generator is designed, using a combined structure of a shell, a heating assembly, a guide wall and a plurality of partition walls to form a maze flow path, and the guide wall and partition walls guide the flow of liquid, so that it can be heated by the heating assembly. Fast and fully vaporized.
The steam generation rate and heating efficiency are significantly improved, so that the liquid flowing through the steam generator can be vaporized quickly and fully, and the working efficiency of the steam generator is improved.
Smart Images
Figure CN222297890U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the structure of a steam generating device, and in particular to a steam generator and a steam cleaner comprising the steam generator. Background Art
[0002] Nowadays, steam cleaners use high-temperature steam to dissolve dirt attached to the cleaned objects and sterilize them. Steam cleaners use a steam generator to generate high-temperature steam. The existing steam generator includes a shell and a heating component arranged in the shell. The heating component heats the water entering the shell to convert it into steam. The generated steam is discharged from the shell to achieve the above-mentioned functions of dissolving dirt and sterilizing.
[0003] For example, a Chinese invention patent with authorization publication number CN 103900068 B and titled “Steam Heater” discloses a steam heater that uses an electric heating tube to heat water to generate steam.
[0004] In the prior art represented by the above patent technology, the heating efficiency of the water entering the steam heater is not high, and it is difficult to fully vaporize the water in the process of water flowing through the interior of the steam heater, which has an adverse effect on the working efficiency of the steam heater. Utility Model Content
[0005] Based on the above problems of the prior art, one object of the present disclosure is to provide a steam generator, which can significantly improve the heating efficiency compared with the prior art, so that the liquid flowing through the inside of the steam generator can be quickly and fully vaporized, thereby improving the working efficiency of the steam generator. Another object of the present disclosure is to provide a steam cleaner including the above steam generator.
[0006] In order to achieve the above objectives, the present disclosure adopts the following technical solutions.
[0007] The present disclosure provides a steam generator as follows, comprising:
[0008] A shell having a cavity formed therein, wherein two opposite side walls of the shell in the length direction respectively have an inlet and an outlet, and the inlet and the outlet are connected to the cavity;
[0009] a heating assembly mounted on the housing and configured to heat the liquid entering the cavity through the inlet to vaporize the liquid;
[0010] a guide wall fixed to the shell and located in the cavity, the guide wall rising from the bottom toward the top of the shell, a bypass passage located on both sides of the guide wall in the width direction being formed between the guide wall and the side wall portion of the shell, the guide wall being opposite to the inlet in the length direction to guide the liquid entering from the inlet to flow toward the bypass passage; and
[0011] A plurality of partition walls are fixed to the shell and are located in the cavity, the plurality of partition walls are spaced apart from each other in the length direction, and are arranged at a position closer to the discharge port than the guide wall, so that the cavity is divided into a plurality of sub-chambers by the plurality of partition walls, and a bent flow path is defined by the plurality of partition walls, so that the inlet is connected to the discharge port via the bypass path and the bent flow path.
[0012] In an optional solution, the guide wall has an arcuate surface, the arcuate surface is configured to be convex from both side ends thereof in the width direction toward the central portion, and the central portion of the arcuate surface is opposite to the entrance in the length direction.
[0013] In another optional solution, the plurality of partition walls include a first partition wall, a second partition wall and a third partition wall.
[0014] The first partition wall is formed with a first notch that is offset from the bypass passage in the width direction.
[0015] The second partition wall is formed with a second notch that is staggered from the first notch in the width direction, and
[0016] The third partition wall is formed with a third notch that is offset from the second notch in the width direction.
[0017] In another optional scheme, the first notch is formed in the central part of the first partition wall in the width direction, the two second notches are formed at the two side ends of the second partition wall in the width direction, and the two third notches are formed in the central part of the third partition wall in the width direction in a spaced-apart manner.
[0018] In another optional solution, the first partition wall, the second partition wall and the third partition wall are formed into flat plates extending along different planes perpendicular to the length direction.
[0019] In another optional solution, a recess is formed at the bottom of the shell in at least a portion of the sub-chambers.
[0020] In another optional solution, the heating assembly includes an electric heating tube, which is accommodated and installed in the shell and the bottom of the shell is configured to have a step structure matching the shape of the electric heating tube, and the step structure and the multiple partition walls define the recess.
[0021] In another optional solution, the steam generator is configured such that the liquid passes through or crosses the step structure multiple times when flowing from the inlet to the outlet.
[0022] In another optional solution, the shell is formed with a plurality of first protrusions, the plurality of first protrusions are arranged in an array at the bottom of the shell and protrude toward the cavity, and the plurality of first protrusions are spaced apart from each other, and
[0023] The shell is formed with a plurality of second protrusions, which are arranged in an array on the top of the shell and protrude toward the cavity, and are spaced apart from each other.
[0024] The present disclosure also provides a steam cleaner, comprising the steam generator described in any one of the above technical solutions.
[0025] By adopting the above technical solution, the present disclosure provides a steam generator and a steam cleaner including the steam generator. The steam generator includes a shell, a heating assembly, a guide wall and a plurality of partition walls assembled together. A cavity is formed inside the shell, and two side walls of the shell opposite to each other in the length direction respectively have an inlet and an outlet, and the inlet and the outlet are connected to the cavity. The heating assembly is installed on the shell, and is used to heat the liquid entering through the inlet to form steam. The guide wall is fixed to the shell and is located in the cavity, and the guide wall stands from the bottom of the shell toward the top, and a bypass passage located on both sides of the guide wall is formed between the guide wall and the side wall portion of the cavity, and the guide wall is opposite to the inlet in the length direction to guide the liquid entering from the inlet to flow toward the bypass passage located on both sides of the guide wall. A plurality of partition walls are fixed to the shell and are located in the cavity. The plurality of partition walls are located closer to the discharge port than the guide wall in the length direction and are arranged spaced apart from each other in the length direction, so that the cavity is divided into a plurality of sub-chambers by the plurality of partition walls. A bending flow path is defined by the plurality of partition walls, so that the inlet port is connected to the discharge port via the bypass path and the bending flow path.
[0026] By adopting the above technical solution, a so-called labyrinth flow path including a bypass path and a bending flow path is formed inside the cavity by using the guide wall and the plurality of partition walls, and the liquid entering the cavity through the inlet can be fully heated and vaporized by the heating component during the flow in the labyrinth flow path. Thus, the steam generator according to the present disclosure increases the steam generation rate. In this way, the heating efficiency is significantly improved, so that the liquid flowing through the inside of the steam generator can be quickly and fully vaporized, thereby improving the working efficiency of the steam generator. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1A is a perspective schematic diagram showing a steam generator according to an embodiment of the present disclosure.
[0028] Figure 1B It shows Figure 1A A schematic cross-sectional view of a steam generator in FIG. 1 , in which the section lines are omitted.
[0029] Figure 2A It shows Figure 1A A three-dimensional schematic diagram of the shell body of the steam generator shell.
[0030] Figure 2B It shows Figure 2A Another three-dimensional schematic diagram of the shell body in .
[0031] Figure 3A It shows Figure 1A A three-dimensional schematic diagram of a shell upper cover of a shell of a steam generator in FIG.
[0032] Figure 3B It shows Figure 3A Another three-dimensional schematic diagram of the shell cover in FIG.
[0033] Figure 4A It shows Figure 1A A three-dimensional schematic diagram of other components of the steam generator except the shell.
[0034] Figure 4B It shows Figure 4A A three-dimensional schematic diagram of the electric heating tube.
[0035] Description of Reference Numerals
[0036] 1—housing;
[0037] 11—housing body; 11o—entry port; 111—guide wall; 112—first main body partition wall portion; 112n—first notch; 113—second main body partition wall portion; 113n—second notch; 114—third main body partition wall portion; 114n—third notch; 115—step structure; 116—first protrusion;
[0038] 12—shell cover; 12o—discharge port; 121—first cover partition wall; 122—second cover partition wall; 123—third cover partition wall; 124—second protrusion;
[0039] 2—Heating component;
[0040] 21—electric heating tube; 211—bend tube portion; 212—straight tube portion; 213—electrical connection portion;
[0041] 22—first sealing cover; 23—lead wire; 24—sensor; 25—second sealing cover; 26—holder;
[0042] 3—Sealing ring;
[0043] 4—Connectors;
[0044] S—cavity; S1—first sub-chamber; S2—second sub-chamber; S3—third sub-chamber; S4—fourth sub-chamber; C1—first recess; C2—second recess; C3—third recess; C4—fourth recess;
[0045] L—length direction; W—width direction; H—height direction. DETAILED DESCRIPTION
[0046] The following describes the embodiments of the present disclosure with reference to the accompanying drawings. For ease of understanding, the elements shown in the drawings may include elements whose sizes and scales are different from the actual sizes and scales.
[0047] In the present disclosure, unless otherwise specified, the length direction, width direction and height direction refer to the length direction, width direction and height direction of the shell of the steam generator, respectively. The above direction definitions are only used to facilitate the description of the structure of the steam generator of the present disclosure, and are not used to limit the use state of the steam generator of the present disclosure.
[0048] A steam generator according to an embodiment of the present disclosure is described below in conjunction with the accompanying drawings.
[0049] like Figures 1A to 4B As shown, a steam generator according to an embodiment of the present disclosure includes a shell 1, a heating assembly 2, a sealing ring 3 and a plurality of connectors 4 which are assembled together.
[0050] In this embodiment, the housing 1 may be made of metal. Figures 1A to 3BAs shown, the housing 1 includes a housing body 11 and a housing cover 12 that can be assembled together in a detachable manner. The housing body 11 and the housing cover 12 are fixed together by a plurality of connectors 4, and a sealing ring 3 is sandwiched between the housing body 11 and the housing cover 12 to close the gap between the two when the housing body 11 and the housing cover 12 are fixed together. When the housing body 11 and the housing cover 12 are fixed together, the housing 1 composed of the housing body 11 and the housing cover 12 has a hollow structure, so that a cavity S is formed inside the housing 1. The housing 1 has an inlet 11o and an outlet 12o on opposite side walls in the length direction L, respectively, and the inlet 11o and the outlet 12o are directly connected to the cavity S.
[0051] like Figure 1B , Figure 2A , Figure 2B , Figure 3A and Figure 3B As shown, the housing body 11 has a generally cubic shape as a whole, the housing body 11 is formed with a recessed structure and is open toward the housing upper cover 12 in the height direction H, and the housing upper cover 12 is formed with a recessed structure and is open toward the housing body 11 in the height direction H. The above-mentioned inlet 11o is arranged on one side of the length direction L of the housing body 11 ( Figure 1B The discharge port 12o is arranged on the other side of the length direction L of the housing upper cover 12 ( Figure 1B The side wall portion of the left side).
[0052] like Figure 1B , Figure 2A and Figure 2B As shown, the shell body 11 has a bottom and side walls rising from the bottom to the top. Further, the steam generator also includes a guide wall 111, a first body partition wall 112, a second body partition wall 113 and a third body partition wall 114 rising from the bottom of the shell body 11 to the shell upper cover 12. The guide wall 111, the first body partition wall 112, the second body partition wall 113 and the third body partition wall 114 are arranged in sequence in the flow direction of the liquid entering the cavity S inside the shell 1 from the inlet 11o toward the outlet 12o.
[0053] like Figure 1B and Figure 2AAs shown, the guide wall 111 is formed integrally with the bottom of the housing body 11 and stands vertically from the bottom of the housing body 11 toward the top of the housing upper cover 12. In the width direction W, the guide wall 111 is located at the central part of the bottom of the housing body 11, and bypass passages located on both sides of the guide wall 111 in the width direction are formed between the two ends of the guide wall 111 in the width direction and the side wall of the cavity S. The guide wall 111 is opposite to the inlet 11o in the length direction L to guide the liquid entering from the inlet 11o to flow toward the bypass passages located on both sides of the guide wall 111. In order to smoothly guide the liquid toward the bypass passage, the guide wall 111 may have an arcuate surface, which is configured to be convex from the two ends in the width direction toward the central part in the width direction, and the central part of the arcuate surface is opposite to the inlet 11o in the length direction L. In this way, the liquid entering the cavity S of the housing 1 from the inlet 11o will be diverted and guided toward both sides by the arcuate surface of the guide wall 111, and the diverted liquid will mainly flow toward the downstream side through the bypass passage.
[0054] like Figure 1B and Figure 2AAs shown, the first main body partition wall portion 112, the second main body partition wall portion 113 and the third main body partition wall portion 114 are formed as one body with the bottom of the shell body 11 and stand vertically from the bottom of the shell body 11 toward the top of the shell upper cover 12. The first main body partition wall portion 112, the second main body partition wall portion 113 and the third main body partition wall portion 114 are arranged spaced apart from each other in the length direction L, and the first main body partition wall portion 112, the second main body partition wall portion 113 and the third main body partition wall portion 114 extend along different planes perpendicular to the length direction L and are parallel to each other. The first main body partition wall portion 112, the second main body partition wall portion 113 and the third main body partition wall portion 114 extend to the side wall portion of the shell body 11 in the width direction W, so that the width direction ends of the first main body partition wall portion 112, the second main body partition wall portion 113 and the third main body partition wall portion 114 are connected to the side wall portion of the shell body 11. In addition, in order to guide the liquid to flow along a specific curved flow path in the cavity S of the housing 1, a first notch 112n is formed at the top of the first main body partition wall portion 112, which is staggered from the bypass path in the width direction W (when viewed along the length direction L), a second notch 113n is formed at the top of the second main body partition wall portion 113, which is staggered from the first notch 112n in the width direction W (when viewed along the length direction L), and a third notch 114n is formed at the top of the third main body partition wall portion 114, which is staggered from the second notch 113n in the width direction W (when viewed along the length direction L). Specifically, the first notch 112n is formed in the width direction center of the first main body partition wall portion 112, two second notches 113n are formed at both side ends of the second main body partition wall portion 113 in the width direction, and two third notches 114n are formed in the width direction center of the third main body partition wall portion 114 in a spaced manner.
[0055] like Figure 1B , Figure 3A and Figure 3B As shown, the shell upper cover 12 has a top and a side wall portion rising from the four sides of the top toward the shell body 11, and the side wall portion of the shell upper cover 12 and the side wall portion of the shell body 11 together constitute the side wall portion of the shell 1. Further, the steam generator also includes a first upper cover partition wall portion 121, a second upper cover partition wall portion 122, and a third upper cover partition wall portion 123 rising from the top of the shell upper cover 12 toward the bottom of the shell body 11. The first upper cover partition wall portion 121, the second upper cover partition wall portion 122, and the third upper cover partition wall portion 123 are arranged sequentially in the flow direction of the liquid entering the cavity S inside the shell 1 from the inlet port 11o toward the outlet port 12o.
[0056] like Figure 1B and Figure 3BAs shown, the first upper cover partition wall portion 121, the second upper cover partition wall portion 122 and the third upper cover partition wall portion 123 are formed as a whole with the top of the shell upper cover 12 and stand vertically from the top of the shell upper cover 12 toward the shell body 11. The first upper cover partition wall portion 121, the second upper cover partition wall portion 122 and the third upper cover partition wall portion 123 are arranged spaced apart from each other in the length direction L, and the first upper cover partition wall portion 121, the second upper cover partition wall portion 122 and the third upper cover partition wall portion 123 extend along different planes perpendicular to the length direction L and are parallel to each other. The first upper cover partition wall portion 121, the second upper cover partition wall portion 122 and the third upper cover partition wall portion 123 extend to the side wall portion of the shell upper cover 12 in the width direction W, so that the width direction ends of the first upper cover partition wall portion 121, the second upper cover partition wall portion 122 and the third upper cover partition wall portion 123 are connected to the side wall portion of the shell upper cover 12.
[0057] By adopting the above structure, Figure 1BAs shown, in the state where the shell body 11 and the shell upper cover 12 are fixedly installed together, the first body partition wall portion 112 and the first upper cover partition wall portion 121 are aligned with each other and abut against each other, thereby the first body partition wall portion 112 and the first upper cover partition wall portion 121 constitute a first partition wall having a flat plate shape; the second body partition wall portion 113 and the second upper cover partition wall portion 122 are aligned with each other and abut against each other, thereby the second body partition wall portion 113 and the second upper cover partition wall portion 122 constitute a second partition wall having a flat plate shape; the third body partition wall portion 114 and the third upper cover partition wall portion 123 are aligned with each other and abut against each other, thereby the third body partition wall portion 114 and the third upper cover partition wall portion 123 constitute a third partition wall having a flat plate shape. In this way, three partition walls fixed to the shell 1 are realized. The three partition walls are located on the side of the discharge port 12o that is closer to the guide wall 111 in the length direction L, and the three partition walls are arranged spaced apart from each other and parallel to each other in the length direction L, so that the cavity S of the housing 1 is divided into four sub-chambers (first sub-chamber S1, second sub-chamber S2, third sub-chamber S3 and fourth sub-chamber S4) by the three partition walls. The first sub-chamber S1 is directly connected to the inlet 11o, the second sub-chamber S2 is located between the first sub-chamber S1 and the third sub-chamber S3 in the length direction L, the third sub-chamber S3 is located between the second sub-chamber S2 and the fourth sub-chamber S4 in the length direction L, and the fourth sub-chamber S4 is directly connected to the discharge port 12o. In addition, by using the first notch 112n, the second notch 113n and the third notch 114n, channels staggered from each other in the width direction W are formed between the sub-chambers S1, S2, S3 and S4, thereby defining a bending flow path through a plurality of partition walls, so that the inlet 11o is connected to the outlet 12o via the bypass and the bending flow path. In other words, a labyrinth flow path from the inlet 11o to the outlet 12o is defined by the guide wall 111, the first partition wall, the second partition wall and the third partition wall, so that the liquid flowing into the cavity S from the inlet 11o can be fully heated and vaporized by the heating assembly 2 during the process of flowing in the labyrinth flow path.
[0058] In addition, if Figure 1B and Figure 2AAs shown, the bottom of the shell body 11 is configured to have a step structure 115 that matches the shape of the electric heating tube 21 of the heating assembly 2. The bottom of the shell body 11 has a first bottom surface, a second bottom surface, and a side surface connecting the first bottom surface and the second bottom surface by forming the step structure 115. The first bottom surface and the second bottom surface are arranged in layers in the height direction H, and the second bottom surface is located closer to the shell cover 12 than the first bottom surface. In this way, the first bottom surface, the side surface and the three partition walls define a first recess C1 located in the first sub-chamber S1, a second recess C2 located in the second sub-chamber S2, a third recess C3 located in the third sub-chamber S3, and a fourth recess C4 located in the fourth sub-chamber S4. In the process of the liquid entering the cavity S flowing through the three sub-chambers S1, S2, S3, and S4, the impurities in the liquid will be retained in these recesses C1, C2, C3, and C4 as much as possible, thereby reducing the probability of impurities blocking the discharge port 1o, thereby extending the service life of the steam generator.
[0059] In order to improve the vaporization rate of the steam generator, such as Figure 1B , Figure 2A and Figure 3B As shown, the bottom of the shell body 11 is formed with a plurality of first protrusions 116, and the plurality of first protrusions 116 are arranged in an array at the bottom of the shell body 11. Moreover, the number of the plurality of first protrusions 116 is configured to cover the first bottom surface and the second bottom surface of the step structure 115. These first protrusions 116 are spaced apart from each other, and each first protrusion 116 is formed into a quadrangular pyramid structure protruding toward the cavity S. In addition, the shell upper cover 12 is formed with a plurality of second protrusions 124, and the plurality of second protrusions 124 are arranged in an array at the top of the shell upper cover 12. Moreover, the plurality of second protrusions 124 are concentratedly arranged at a position close to the discharge port 12o, and these second protrusions 124 are spaced apart from each other, and each second protrusion 124 is formed into a quadrangular pyramid structure protruding toward the cavity S. In this way, the first protrusions 116 and the second protrusions 124 can increase the contact area between the shell 1 and the liquid flowing into the cavity S and can also appropriately slow down the flow rate of the liquid, thereby fully improving the heating efficiency of the steam generator and increasing the vaporization rate, that is, increasing the steam generation rate. In addition, the second protrusion 124 can prevent impurities in the liquid from entering the discharge port 12o, thereby further reducing the risk of the discharge port 12o being blocked by impurities and increasing the service life of the steam generator.
[0060] In this embodiment, if Figure 1A , Figure 1B , Figure 4A and Figure 4BAs shown, the heating assembly 2 is installed on the housing 1, and is used to heat the liquid entering the cavity S through the inlet 11o and can sense the temperature of the housing 1. Specifically, the heating assembly 2 includes an electric heating tube 21, a first sealing cover 22, a wire 23, a sensor 24, a second sealing cover 25 and a retaining frame 26.
[0061] like Figure 1A , Figure 1B , Figure 4A and Figure 4B As shown, the electric heating tube 21 is formed as a U-shaped structure as a whole and is accommodated and installed in the housing 1. The electric heating tube 21 includes a curved tube portion 211, two straight tube portions 212 and two electrical connection portions 213. The curved tube portion 211 is formed in an arc shape, and the two ends of the curved tube portion 211 are respectively connected to one end of the two straight tube portions 212, and the other ends of the two straight tube portions 212 are respectively provided with an electrical connection portion 213. The two electrical connection portions 213 are used to connect with the wire 23 to achieve electrical connection, so that the electric heating tube 21 can generate heat when current is passed through the wire 23, thereby heating the liquid in the cavity S. In addition, two first sealing covers 22 are respectively arranged at the two electrical connection portions 213, which are used to protect the two electrical connection portions 213 and isolate them from the external environment. The sensor 24 is arranged outside the housing 1 and close to the housing body 11, and the sensor 24 is relatively fixed to the housing 1 through the retaining frame 26, so that the temperature of the housing 1 can be sensed by contact using the sensor 24. In addition, the sensor 24 is also connected in series with the electric heating tube 21 through the wire 23, so that the sensor 24 is in working state when the electric heating tube 21 is in working state. Two second sealing covers 25 are respectively arranged at the parts of the sensor 24 for realizing electrical connection, so as to protect the electrical connection parts of the sensor 24 and isolate them from the external environment.
[0062] In addition, the liquid entering the housing 1 passes through or crosses the step structure 115 multiple times in the process of flowing from the inlet 11o to the outlet 12o. This means that the liquid entering the housing 1 will repeatedly flow through the electric heating tube 21 added to the assembly 2. Specifically, the liquid will pass through or cross the curved tube portion 211 of the electric heating tube 21 in the process of flowing from the bypass to the first notch 112n, and will pass through or cross the straight tube portion 212 of the electric heating tube 21 in the process of flowing from the first notch 112n to the second notch 113n and in the process of flowing from the second notch 113n to the third notch 114n. In this way, the heating efficiency of the electric heating tube 2 for the liquid can be further improved.
[0063] Thus, the steam generator according to the present disclosure has a relatively simple structure and a small volume, and also improves the steam generation rate. Thus, the heating efficiency is significantly improved, so that the liquid flowing through the inside of the steam generator can be quickly and fully vaporized, thereby improving the working efficiency of the steam generator.
[0064] It should be understood that the above embodiments are merely exemplary and are not intended to limit the present disclosure. Those skilled in the art may make various modifications and changes to the above embodiments under the guidance of the present disclosure without departing from the scope of the present disclosure. The following supplementary explanation is provided for the technical solution of the present disclosure.
[0065] i. The present disclosure also provides a steam cleaner, which includes the steam generator according to the present disclosure. The steam cleaner can not only be used to dissolve dirt and sterilize the cleaned object, but also can achieve other purposes as needed.
[0066] ii. In the above embodiment, it is described that the housing 1 is provided with three partition walls to realize a labyrinth flow path, but the present disclosure is not limited thereto. Fewer or more partition walls can be provided as needed to realize a sealed flow path. Moreover, the arrangement, relative positional relationship and specific structure of the partition walls can also be adjusted as needed. For example, the partition wall does not have to be composed of two different parts as described in the above embodiment, and the partition wall can be only provided in the housing body 11 or the housing cover 12. At this time, the notch on the partition wall can be in the form of a hole. For example, in the case where a partition wall portion is formed on both the housing body and the housing cover, the notch can be formed in the housing body, or in the housing cover, or in both the housing body and the housing cover. For example, the partition wall does not have to extend in the height direction H, and can extend obliquely relative to the height direction H.
[0067] iii. In the modified examples of the above embodiments, the housing may be formed in one piece, or may be formed in separate parts and the separate parts may be fixed together by fixing means different from those described in the above embodiments.
[0068] iv. It can be understood that the steam generator according to the present disclosure can be used to vaporize pure water, and can also be used to vaporize a mixture of water and other liquids.
[0069] v. It can be understood that the first sealing cover 22 and the second sealing cover 25 in the present disclosure can be silicon sealing covers. In addition, a protective sleeve can be provided to protect the wire 23 to constrain and protect the wire 23.
Claims
1. A steam generator, characterized in that: include: A shell having a cavity formed therein, wherein two opposite side walls of the shell in the length direction respectively have an inlet and an outlet, and the inlet and the outlet are connected to the cavity; a heating assembly mounted on the housing and configured to heat the liquid entering the cavity through the inlet to vaporize the liquid; a guide wall fixed to the shell and located in the cavity, the guide wall rising from the bottom toward the top of the shell, a bypass passage located on both sides of the guide wall in the width direction being formed between the guide wall and the side wall portion of the shell, the guide wall being opposite to the inlet in the length direction to guide the liquid entering from the inlet to flow toward the bypass passage; as well as A plurality of partition walls are fixed to the shell and are located in the cavity, the plurality of partition walls are spaced apart from each other in the length direction, and are arranged at a position closer to the discharge port than the guide wall, so that the cavity is divided into a plurality of sub-chambers by the plurality of partition walls, and a bent flow path is defined by the plurality of partition walls, so that the inlet is connected to the discharge port via the bypass path and the bent flow path.
2. The steam generator according to claim 1, characterized in that: The guide wall has an arcuate surface configured to be convex from both side ends thereof in the width direction toward a central portion, and the central portion of the arcuate surface faces the inlet in the longitudinal direction.
3. The steam generator according to claim 1, characterized in that: The plurality of partition walls include a first partition wall, a second partition wall and a third partition wall, The first partition wall is formed with a first notch that is offset from the bypass passage in the width direction. The second partition wall is formed with a second notch that is staggered from the first notch in the width direction, and The third partition wall is formed with a third notch that is offset from the second notch in the width direction.
4. The steam generator according to claim 3, characterized in that: The first notch is formed at the center of the first partition wall in the width direction. Two second notches are formed at both side ends of the second partition wall in the width direction, and The two third notches are formed at a widthwise central portion of the third partition wall in a spaced-apart manner.
5. The steam generator according to claim 4, characterized in that: The first partition wall, the second partition wall, and the third partition wall are formed in a flat plate shape extending along different planes perpendicular to the longitudinal direction.
6. The steam generator according to any one of claims 1 to 5, characterized in that: A recess is formed in the bottom of the housing in at least a portion of the sub-chambers.
7. The steam generator according to claim 6, characterized in that: The heating assembly includes an electric heating tube, which is received and installed in the shell. The bottom of the shell is configured to have a step structure matching the shape of the electric heating tube. The step structure and the plurality of partition walls define the recess.
8. The steam generator according to claim 7, characterized in that: The steam generator is configured such that the liquid passes through or crosses the step structure a plurality of times during the process of flowing from the inlet port to the outlet port.
9. The steam generator according to any one of claims 1 to 5, characterized in that: The housing is formed with a plurality of first protrusions, the plurality of first protrusions are arranged in an array at the bottom of the housing and protrude toward the cavity, and the plurality of first protrusions are spaced apart from each other, and The shell is formed with a plurality of second protrusions, which are arranged in an array on the top of the shell and protrude toward the cavity, and are spaced apart from each other.
10. A steam cleaner, characterized in that: A steam generator comprising any one of claims 1 to 9.