A miniature dry steam generator

Abstract

This invention relates to a miniature dry steam generator, comprising a generator body, an inlet chamber, a heating chamber, an outlet, and a water supply port within the generator body. The heating chamber contains a heating structure. The inlet chamber communicates with the heating chamber through the water supply port. The generator body also includes a return sleeve and an inlet pipe. The axis of the return sleeve coincides with the axis of the inlet pipe. After assembly, a return channel is formed between the outer circumferential surface of the inlet pipe and the inner wall of the return sleeve. By simply connecting the return pipe to a water storage container and placing the inlet pipe in the water of the storage container, the water storage container can not only directly supply water to the dry steam generator but also receive the water returning from the dry steam generator, reducing the overall volume of the dry steam generator. This allows the returning water to flow directly into the water storage container. The ingenious design and compact size enable its widespread application in various devices, without being limited by size, and thus have a wide range of applications.

Description

Technical Field

[0001] This invention relates to the field of dry steam generator technology, and in particular to a micro dry steam generator. Background Technology

[0002] A dry steam generator is a device that uses electrical energy or the heat energy of other fuels to turn water into dry steam. It has the advantages of producing dry steam quickly and being easy to use.

[0003] To this end, invention patent CN111006193A discloses a low-power rapid dry steam generator, comprising a water inlet assembly, a tubular heating element assembly, and a steam outlet assembly connected in sequence. The water inlet assembly is equipped with a water suction pipe and a blower that blows air into the tubular heating element assembly. Utilizing the Bernoulli effect, the airflow from the blower draws water from the bottle through the upper end of the water suction pipe, forming water droplets that are then sprayed into the tubular heating element assembly. In this invention, the water inlet assembly is equipped with a water suction pipe that extends into the bottle, and a blower is also provided. Utilizing the Bernoulli effect, the airflow from the blower draws water from the bottle through the upper end of the water suction pipe, forming water droplets that are sprayed into the tubular heating element assembly. The tubular heating element assembly heats the water droplets into steam, which is then evaporated and discharged. By controlling the airflow, a micro-supply of water can be achieved, resulting in an inflow rate of less than 0.5 g / s, thus enabling the output of rapid dry steam with low power consumption.

[0004] The aforementioned invention patent has the following problems: the overall structure of the dry steam generator is large, and its application in other equipment is easily limited by the structure. At the same time, the dry steam generator consumes too much energy, which leads to excessive weight when using battery power and many inconveniences when using grid power. As a result, its use is limited and it cannot provide a widely applicable dry steam generator for equipment such as dry steam irons, dry steam mops, and dry steam cleaners.

[0005] Therefore, existing technology cannot meet our needs. Summary of the Invention

[0006] To address the above problems, the present invention provides a miniature dry steam generator with a small overall structure.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A miniature dry steam generator includes a generator body, which contains a water inlet chamber, a heating chamber, and an air outlet and a water supply outlet communicating with the heating chamber. The heating chamber contains a heating structure. The water inlet chamber communicates with the heating chamber through the water supply outlet. The generator body also has a return sleeve section communicating with the water inlet chamber and a water inlet pipe located within the return sleeve section. The axis of the return sleeve section coincides with the axis of the water inlet pipe section. After assembly, a return channel is formed between the outer circumferential surface of the water inlet pipe and the inner wall of the return sleeve section. In use, the water inlet pipe supplies water to the water inlet chamber, and the water enters the heating chamber through the water supply outlet and is heated by the heating structure to form dry steam, which is then discharged from the air outlet.

[0009] As a preferred embodiment, it is further defined as follows: it also includes a water storage container for supplying water and receiving return water, the water storage container is fitted with a cover, the return sleeve includes a return section disposed on the generator body and a connecting section disposed on the water storage container, one end of the cover is fixedly connected to the return section, the other end of the cover is fixedly connected to the connecting section, the return channel includes a first channel disposed in the return section and a second channel disposed in the connecting section, and the return water flows back to the water storage container through the first channel and the second channel.

[0010] As a preferred embodiment, it is further defined as follows: a valve is also provided in the first channel, the valve is provided with a handle, and an arc-shaped groove is provided on the cover for the handle to be exposed and swing.

[0011] As a preferred embodiment, it is further defined as follows: the cover is also provided with a manifold located in the second channel, and after assembly, a third channel is formed between the manifold and the water inlet pipe, and the return water flows back to the water storage container through the third channel after passing through the first channel and the second channel.

[0012] As a preferred embodiment, it is further defined as follows: it also includes a water pump, which is provided with an inlet and an outlet. After assembly, the inlet and outlet are respectively located in the inlet cavity. The inlet pipe is sealed to the inlet. After assembly, the outlet is aligned with the water supply port.

[0013] As a preferred embodiment, it is further defined as follows: the generator body is provided with a number of protruding mounting posts at the water supply port, and a filter element is also sleeved on the water outlet. The filter element is provided with a step, and after assembly, the step abuts against the mounting posts so that a second return channel is formed between the water supply port and the filter element.

[0014] As a preferred embodiment, it is further defined as follows: a PCB board is fixedly installed on the upper part of the generator body, a sensor is fixedly installed on the PCB board, a detection port communicating with the water supply port is opened on the outer peripheral surface of the generator body, the sensor is provided with two detection columns, and after assembly, the detection columns are inserted into the detection port and exposed in the water supply port.

[0015] As a preferred embodiment, the generator body is further defined as follows: the generator body includes a mounting bracket, a ceramic tube fixedly disposed in the mounting bracket, and a mounting cover fixedly disposed on the mounting bracket; the heating chamber is disposed in the ceramic tube; the water inlet chamber is disposed in the mounting cover; an air outlet cover is also sleeved on the ceramic tube; the air outlet is disposed on the air outlet cover; and the two ends of the ceramic tube are respectively provided with a first opening communicating with the air outlet and a second opening communicating with the water supply port.

[0016] As a preferred embodiment, it is further defined as follows: the inner wall of the heating cavity is provided with an installation groove along its length, the heating structure is provided with a heating body and an installation strip integrally formed with the heating body and snapped into the installation groove after assembly, and the heating body is coaxially arranged with the heating cavity.

[0017] As a preferred embodiment, it is further defined as follows: the ceramic tube is symmetrically provided with connection openings communicating with the heating cavity; the heating body is provided with a first connection end that passes through the connection opening and protrudes outside the ceramic tube after assembly; the mounting strip is provided with a second connection end that passes through the connection opening and protrudes outside the ceramic tube after assembly; the mounting bracket is also fixedly provided with a first electrode and a second electrode; the first electrode and the second electrode are respectively electrically connected to the PCB board; the first electrode is electrically connected to the first connection end; and the second electrode is electrically connected to the second connection end.

[0018] The beneficial effects of this invention are as follows: The miniature dry steam generator of this invention includes a generator body, which contains a water inlet chamber, a heating chamber, a steam outlet, and a water supply outlet. The heating chamber contains a heating structure. The water inlet chamber communicates with the heating chamber through the water supply outlet. The generator body also includes a return sleeve and a water inlet pipe. The axis of the return sleeve coincides with the axis of the water inlet pipe. After assembly, a return channel is formed between the outer circumferential surface of the water inlet pipe and the inner wall of the return sleeve. By coaxially arranging the water inlet pipe for water intake and the return sleeve for water return, it is only necessary to connect the return pipe to a water storage container and place the water inlet pipe in the water storage container. The water storage container can not only directly supply water to the dry steam generator but also receive the water returned by the dry steam generator, reducing the overall volume of the dry steam generator. The return water flows directly into the water storage container. The ingenious design and compact size allow for wide application in various devices. It has low energy consumption, is powered by batteries, is not limited by size, and has a wide range of applications. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the present invention;

[0020] Figure 2 This is the second structural schematic diagram of the present invention;

[0021] Figure 3 This is an exploded view of the present invention;

[0022] Figure 4 This is a cross-sectional view of the present invention;

[0023] Figure 5 yes Figure 4 Enlarged diagram of A in the middle;

[0024] Figure 6 This is one of the structural schematic diagrams of the generator body;

[0025] Figure 7 This is the second schematic diagram of the main body of the generator;

[0026] Figure 8 This is an exploded view of the generator body;

[0027] Figure 9 This is a cross-sectional view of the generator body;

[0028] Figure 10 yes Figure 9 Enlarged diagram of B in the middle;

[0029] Figure 11 This is a schematic diagram of the valve structure;

[0030] Figure 12 This is a partial sectional view of the valve;

[0031] Figure 13 This is an exploded view of the valve;

[0032] Figure 14 This is one of the structural diagrams of the mounting bracket;

[0033] Figure 15 This is the second structural diagram of the mounting bracket;

[0034] Figure 16 This is a schematic diagram of the structure of a ceramic tube;

[0035] Figure 17 This is a schematic diagram of the filter element's structure;

[0036] Figure 18 This is a structural diagram of the mounting cover;

[0037] Figure 19 This is a schematic diagram of the vent cover.

[0038] Figure 20 This is a schematic diagram of the heating structure;

[0039] Figure 21 This is a schematic diagram of the structure of the first electrode;

[0040] Figure 22 This is a schematic diagram of the second electrode structure;

[0041] Figure 23 This is the circuit diagram of the PCB board. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0043] As attached Figure 1 To be continued Figure 23As shown, a miniature dry steam generator includes a generator body 1. The generator body 1 has a water inlet chamber 11, a heating chamber 12, and an air outlet 13 and a water supply outlet 14 communicating with the heating chamber 12. The heating chamber 12 is provided with a heating structure 4. The water inlet chamber 11 communicates with the heating chamber 12 through the water supply outlet 14. The generator body 1 is also provided with a return sleeve 100 communicating with the water inlet chamber 11 and a water inlet pipe 6 located in the return sleeve 100. The axis of the return sleeve 100 coincides with the axis of the water inlet pipe 6. After assembly, a return channel 60 is formed between the outer peripheral surface of the water inlet pipe 6 and the inner wall of the return sleeve 100. In use, the water inlet pipe 6 supplies water to the water inlet chamber 11. The water enters the heating chamber 12 through the water supply outlet 14 and is heated by the heating structure 4 to form dry steam, which is then discharged from the air outlet 13. It also includes a water storage container 9 for supplying water and receiving return water. The water storage container 9 is fitted with a cover 90. The return sleeve 100 includes a return section 15 disposed on the generator body 1 and a connecting section 91 disposed on the water storage container 9. One end of the cover 90 is fixedly connected to the return section 15, and the other end of the cover 90 is fixedly connected to the connecting section 91. The return channel 60 includes a first channel 601 disposed in the return section 15 and a second channel 602 disposed in the connecting section 91. The return water flows back to the water storage container 9 through the first channel 601 and the second channel 602. The inlet pipe 6 for water intake and the return sleeve 100 for water return are coaxially arranged together. Simply connect the return pipe 15 to the water storage container 9 and place the inlet pipe 6 in the water storage container 9. The water storage container 9 can not only directly supply water to the dry steam generator, but also receive the water returned by the dry steam generator, reducing the overall volume of the dry steam generator. The returned water flows directly into the water storage container 9. The ingenious design and compact size make it widely applicable in various equipment. It has low energy consumption, is powered by batteries, is not limited by size, and has a wide range of applications.

[0044] Furthermore, in this embodiment, the cover 90 is used to connect the generator body 1 and the water storage container 9. In actual use, the generator body 1 can be directly connected to irons, mops and other appliances, and the water inlet pipe 6 and the return section 15 can be connected to the water tank of the appliance, so that the dry steam generator can be applied to various appliances. Furthermore, the present invention relates to Maxwell steam tube.

[0045] As attached Figure 3 To be continued Figure 5 and attached Figure 11 To be continued Figure 13As shown, in this embodiment, a valve 93 is also provided in the first channel 601. The valve 93 is provided with a handle 931, and an arc-shaped groove 901 is provided on the cover 90 for the handle 931 to protrude and swing. The valve 93 is used to control the opening and closing of the water inlet chamber 11 and the water storage container 9. When the valve 93 is opened, the backflow water flows into the water storage container 9 after passing through the first channel 601 and the second channel 602. When the valve 93 is closed, the water cannot flow back.

[0046] As attached Figure 3 To be continued Figure 5 and attached Figure 11 To be continued Figure 13 As shown, further, since the inlet pipe 6 connects the water storage container 9 and the water pump 5, and to save the overall volume of the dry steam generator, the return section 15 is located in the middle of the generator body 1. Therefore, the inlet pipe 6 has two sections, one horizontal and one vertical. Of course, the return section 15 can also be located below the water inlet chamber 11 of the generator body 1, so that the inlet pipe 6 only has one vertical section. Since the first channel 601 is also equipped with a valve 93, the axis of the part of the inlet pipe 6 located in the first channel 601 does not coincide with the axis of the return sleeve section 100 in order to avoid the valve 93, while the axis of the part of the inlet pipe 6 located in the connecting part 91 coincides with the axis of the return sleeve section 100. Of course, the valve 93 can also be omitted so that the axis of the entire vertical section of the inlet pipe 6 coincides with the axis of the return sleeve section 100. These simple modifications also fall within the protection scope of this application.

[0047] As attached Figure 3 To be continued Figure 5 and attached Figure 11 To be continued Figure 13As shown, further, the valve 93 includes a stator 932 and a valve core 933 rotatably disposed within the stator 932. The handle 931 is disposed on the valve core 933. One side of the stator 932 is provided with a through groove 9321 for accommodating the water inlet pipe 6, and the other side of the stator 932 is provided with a rotating hole 9322 for accommodating the valve core 933. The upper end of the stator 932 is also provided with a stator channel 9323 communicating with the rotating hole 9322. The valve core 933 has a sealing part 9331 and a valve core channel 9332. When the handle 931 is pulled so that the sealing part 9331 of the valve core 933 abuts against the stator channel 9323, the valve 93 is closed; when the handle 931 is pulled in the opposite direction so that the valve core channel 9332 is aligned with the stator channel 9323, the valve 93 is opened or closed. By adjusting the opening of valve 93, the water pressure in the inlet chamber 11 can be controlled, thereby controlling the amount of water entering the heating chamber 12. This allows for a water supply control of 0.1 g / s, reducing battery power consumption. Furthermore, valve 93 can be configured as an adjustable screw that can be switched on and off.

[0048] As attached Figure 3 To be continued Figure 5 and attached Figure 11 To be continued Figure 13 As shown, in this embodiment, the cover 90 is further provided with a manifold 92 located within the second channel 602. After assembly, a third channel 921 is formed between the manifold 92 and the water inlet pipe 6. The return water flows back into the water storage container 9 through the third channel 921 after passing through the first channel 601 and the second channel 602. Furthermore, the axis of the third channel 921 coincides with the axis of the water inlet pipe 6, allowing the manifold 92 to better collect the return water. Of course, a filter screen can also be provided on the manifold 92 to filter the return water.

[0049] As attached Figure 1 To be continued Figure 10 and attached Figure 14 To be continued Figure 18As shown, this embodiment also includes a water pump 5, which is provided with an inlet 51 and an outlet 52. After assembly, the inlet 51 and outlet 52 are respectively located in the water inlet chamber 11. The water inlet pipe 6 is sealed to the inlet 51. After assembly, the outlet 52 is aligned with the water supply port 14. By directly placing the inlet 51 and outlet 52 of the water pump 5 in the water inlet chamber 11, the volume is reduced, and the related water inlet structure is also reduced, so that the outlet 52 of the water pump 5 can be used directly to supply water to the water supply port 14. Furthermore, the inlet pipe 6 is a flexible PVC hose, and the water pump 5 is a DF30 model. Alternatively, the water pump can be installed at one end of the inlet pipe 6, so that one end of the inlet pipe 6 is sealed to the outlet 52. The other end of the inlet pipe 6 is fitted with a filter element 7 and aligned with the water supply port 14. In use, the inlet port 51 is placed in the water in the water storage container 9 or placed in the water through a water pipe to draw water from the water storage container 9. The drawn water enters the inlet pipe 6 from the outlet 52, and the inlet pipe 6 guides the water to the water supply port 14.

[0050] As attached Figure 1 To be continued Figure 10 and attached Figure 14 To be continued Figure 17 As shown, in this embodiment, the generator body 1 is provided with several protruding mounting posts 140 at the water supply port 14, and a filter element 7 is fitted on the water outlet 52. The filter element 7 is provided with a step 71. After assembly, the step 71 abuts against the mounting post 15, so that a second return channel 16 is formed between the water supply port 14 and the filter element 7. Furthermore, the filter element 7 is a water-permeable filter element, which can filter impurities in the water. The second return channel 16 is set so that most of the water drawn from the container by the water pump 5 enters the heating chamber 12 from the water supply port 14 and is heated by the heating structure 4 to form dry steam, which is discharged from the air outlet 13. A small portion of the water will flow from the second return channel 16 into the water inlet chamber 11. The water flowing into the water inlet chamber 11 from the second return channel 16 can not only continuously flush away the impurities in the filter element 7, but also flush away the scale on the filter element 7, ensuring that the filter element 7 always maintains water flow and continuously maintains a stable water supply to the heating chamber 12.

[0051] As attached Figure 1 To be continued Figure 10 Appendix Figure 14 To be continued Figure 15 and attached Figure 21 To be continued Figure 22As shown, in this embodiment, a PCB board 8 is fixedly mounted on the generator body 1, and a sensor 81 is fixedly mounted on the PCB board 8. A detection port 141 communicating with the water supply port 14 is also opened on the outer peripheral surface of the generator body 1. The sensor 81 is provided with two detection columns 811. After assembly, the detection columns 811 are inserted into the detection port 141 and exposed in the water supply port 14. The sensor 81 mainly detects the water temperature, flow rate, and water hardness of the water supplied to the heating chamber 12 by the water pump 5, so that the water supply status of the water pump 5 to the heating chamber 12 can be monitored at all times. The PCB board 8 controls the water pump 5 electrically connected to it, so that the water pump 5 supplies water to the heating chamber 12 at a constant power. The PCB board 8 realizes the control of battery output power and the detection and control of abnormal temperature rise, preventing abnormal temperature rise, dry burning and other dangers.

[0052] As attached Figure 1 To be continued Figure 10 Appendix Figure 14 To be continued Figure 16 As shown, in this embodiment, the generator body 1 includes a mounting bracket 17, a ceramic tube 18 fixedly disposed within the mounting bracket 17, and a mounting cover 19 fixedly disposed on the mounting bracket 17. The heating chamber 12 is disposed within the ceramic tube 18, and the water inlet chamber 11 is disposed within the mounting cover 19. An air outlet cover 113 is also sleeved on the ceramic tube 18, and the air outlet 13 is disposed on the air outlet cover 113. The two ends of the ceramic tube 18 are respectively provided with a first opening 181 communicating with the air outlet 13 and a second opening 182 communicating with the water supply port 14.

[0053] As attached Figure 1 To be continued Figure 10 Appendix Figure 14 To be continued Figure 16 and attached Figure 20 As shown, in this embodiment, the inner wall of the heating chamber 12 is provided with a mounting groove 121 along its length. The heating structure 4 is provided with a heating body 41 and a mounting strip 42 integrally formed with the heating body 41 and fitted into the mounting groove 121 after assembly. The heating body 41 is coaxially arranged with the heating chamber 12. The mounting groove 121 is directly opened on the inner wall of the heating chamber 12, reducing the number of mounting parts of the heating structure 4. At the same time, there is no need to consider the heating range of other mounting parts, further reducing the volume of the dry steam generator.

[0054] As attached Figure 1 To be continued Figure 10 Appendix Figure 14 To be continued Figure 16As shown, in this embodiment, the ceramic tube 18 is symmetrically provided with connection openings 183 communicating with the heating chamber 12. The heating body 41 is provided with a first connection end 411 that, after assembly, passes through the connection opening 183 and protrudes from the ceramic tube 18. The mounting strip 42 is provided with a second connection end 421 that, after assembly, passes through the connection opening 183 and protrudes from the ceramic tube 18. The mounting bracket 17 is also fixedly provided with a first electrode 82 and a second electrode 83. The first electrode 82 and the second electrode 83 are electrically connected to the PCB board 8, respectively. Electrode 82 is electrically connected to the first connection terminal 411, and the second electrode 83 is electrically connected to the second connection terminal 421. Furthermore, the first electrode 82 can be either a positive or negative electrode, and the second electrode 83 can be either a negative or positive electrode. The second electrode 83 directly clamps the second connection terminal 421, and the first electrode 82 directly clamps the first connection terminal 411 to complete the connection, which is convenient and quick. Of course, protective shells can also be added to the dry steam generator or PCB board, as well as to the first electrode 82 and the second electrode 83, to prevent leakage, damage to parts or electronic components, etc. The PCB board 8 controls the output power of the heating element 41 by detecting the inlet water flow, outlet steam temperature, and battery voltage at the water supply port 14, ensuring that the device can achieve constant-temperature dry steam output throughout the entire battery voltage fluctuation curve.

[0055] As attached Figure 1 To be continued Figure 10 and attached Figure 14 To be continued Figure 18 As shown, in this embodiment, the mounting cover 19 has a mounting opening 191 communicating with the water inlet chamber 11. The water pump 5 is partially inserted into the mounting opening 191 and the outer peripheral surface of the water pump 5 is sealed to the mounting opening 191. Furthermore, at least two sealing rings are provided on the outer peripheral surface of the water pump 5 so that the outer peripheral surface of the water pump 5 is sealed to the mounting opening 191 after assembly.

[0056] As attached Figure 1 To be continued Figure 10 and attached Figure 14 To be continued Figure 18 As shown, in this embodiment, the mounting bracket 17 has a third return channel 173 that communicates with the return pipe 15. After assembly, the third return channel 173 communicates with the water inlet chamber 11. During return, water flows from the second return channel 16 into the water inlet chamber 11, and then flows out of the dry steam generator through the third return channel 173 and the first return channel 151.

[0057] As attached Figure 1 To be continued Figure 7As shown, in this embodiment, the mounting bracket 17 is provided with an insertion cavity 171 and a heat dissipation cavity 172. The water supply port 14 is opened on the bottom wall of the insertion cavity 171. The diameter of the heat dissipation cavity 172 is larger than the diameter of the insertion cavity 171. The ceramic tube 18 is inserted into the insertion cavity 171 at one end located at the second opening 182. The heat dissipation cavity 172 is provided with a heat dissipation groove 174 communicating with the outside, so that the ceramic tube 18 is suspended, avoiding the heat of the ceramic tube 18 from being transferred to the mounting bracket 17. At the same time, the third return channel 173 is located outside the insertion cavity 171, so that the returned water can also dissipate heat for the mounting bracket 17, avoiding burns caused by contact with the mounting bracket 17.

[0058] As attached Figure 1 To be continued Figure 10 As shown, further details are provided: the maximum diameter of the outer circumference of the ceramic tube 18 is only 14mm, the maximum diameter of the inner wall of the water inlet chamber 11 is only 10mm, the diameter of the air outlet 13 is 5mm, the diameter of the water supply port 14 is 5.6mm, the diameter of the first return channel 151 is 7mm, the diameter of the outer circumference of the water inlet pipe 6 is 2.5mm, the lateral length of the dry steam generator is 130mm, and the longitudinal length is 65mm. It can be seen that the overall volume of the dry steam generator is very small and the design is ingenious. Its compact size allows it to be widely used in various equipment without being limited by size, and its application range is wide.

Claims

1. A miniature dry steam generator, characterized in that: The generator includes a generator body (1), which contains a water inlet chamber (11), a heating chamber (12), and an air outlet (13) and a water supply outlet (14) communicating with the heating chamber (12). The heating chamber (12) contains a heating structure (4). The water inlet chamber (11) communicates with the heating chamber (12) through the water supply outlet (14). The generator body (1) also has a return sleeve (100) communicating with the water inlet chamber (11) and a... The water inlet pipe (6) is located inside the return sleeve (100). The axis of the return sleeve (100) coincides with the axis of the water inlet pipe (6). After assembly, a return channel (60) is formed between the outer circumferential surface of the water inlet pipe (6) and the inner wall of the return sleeve (100). When in use, the water inlet pipe (6) supplies water to the water inlet chamber (11). The water enters the heating chamber (12) through the water supply port (14) and is heated by the heating structure (4) to form dry steam, which is then discharged from the air outlet (13).

2. The micro dry steam generator according to claim 1, characterized in that: It also includes a water storage container (9) for supplying water and receiving return water. The water storage container (9) is fitted with a cover (90). The return sleeve (100) includes a return section (15) provided on the generator body (1) and a connecting section (91) provided on the water storage container (9). One end of the cover (90) is fixedly connected to the return section (15), and the other end of the cover (90) is fixedly connected to the connecting section (91). The return channel (60) includes a first channel (601) provided in the return section (15) and a second channel (602) provided in the connecting section (91). The return water flows back to the water storage container (9) through the first channel (601) and the second channel (602).

3. The micro dry steam generator according to claim 2, characterized in that: The first channel (601) is also provided with a valve (93), the valve (93) is provided with a handle (931), and the cover (90) is provided with an arc groove (901) for the handle (931) to be exposed and swing.

4. The micro dry steam generator according to claim 3, characterized in that: The cover (90) is also provided with a manifold (92) located in the second channel (602). After assembly, a third channel (921) is formed between the manifold (92) and the water inlet pipe (6). The return water flows back to the water storage container (9) through the third channel (921) after passing through the first channel (601) and the second channel (602).

5. The micro dry steam generator according to claim 4, characterized in that: It also includes a water pump (5), which is provided with an inlet (51) and an outlet (52). After assembly, the inlet (51) and the outlet (52) are respectively located in the water inlet chamber (11). The water inlet pipe (6) is sealed to the inlet (51). After assembly, the outlet (52) is aligned with the water supply port (14).

6. The micro dry steam generator according to claim 5, characterized in that: The generator body (1) is provided with several protruding mounting posts (140) at the water supply port (14). A filter element (7) is also fitted on the water outlet (52). A step (71) is provided on the filter element (7). After assembly, the step (71) abuts against the mounting post (140) so that a second return channel (16) is formed between the water supply port (14) and the filter element (7).

7. The micro dry steam generator according to claim 6, characterized in that: A PCB board (8) is fixedly installed on the generator body (1), and a sensor (81) is fixedly installed on the PCB board (8). A detection port (141) communicating with the water supply port (14) is also opened on the outer peripheral surface of the generator body (1). The sensor (81) is provided with two detection columns (811). After assembly, the detection columns (811) are inserted into the detection port (141) and exposed in the water supply port (14).

8. The micro dry steam generator according to claim 7, characterized in that: The generator body (1) includes a mounting bracket (17), a ceramic tube (18) fixedly installed in the mounting bracket (17), and a mounting cover (19) fixedly installed on the mounting bracket (17). The heating chamber (12) is installed in the ceramic tube (18), and the water inlet chamber (11) is installed in the mounting cover (19). The ceramic tube (18) is also fitted with an air outlet cover (113), and the air outlet (13) is installed on the air outlet cover (113). The two ends of the ceramic tube (18) are respectively provided with a first opening (181) communicating with the air outlet (13) and a second opening (182) communicating with the water supply port (14).

9. The micro dry steam generator according to claim 8, characterized in that: The inner wall of the heating cavity (12) is provided with an installation groove (121) along its length. The heating structure (4) is provided with a heating body (41) and an installation strip (42) integrally formed with the heating body (41) and installed in the installation groove (121) after assembly. The heating body (41) is coaxially arranged with the heating cavity (12).

10. The micro dry steam generator according to claim 9, characterized in that: The ceramic tube (18) is also symmetrically provided with a connection opening (183) communicating with the heating chamber (12). The heating body (41) is provided with a first connection end (411) that passes through the connection opening (183) and protrudes from the ceramic tube (18) after assembly. The mounting strip (42) is provided with a second connection end (421) that passes through the connection opening (183) and protrudes from the ceramic tube (18) after assembly. The mounting bracket (17) is also fixedly provided with a first electrode (82) and a second electrode (83). The first electrode (82) and the second electrode (83) are electrically connected to the PCB board (8) respectively. The first electrode (82) is electrically connected to the first connection end (411), and the second electrode (83) is electrically connected to the second connection end (421).

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