Steam generator structure

Abstract

The steam generator structure comprises a main body, a first heating pipe and a second heating pipe, wherein the first heating pipe and the second heating pipe are electrically connected; the inlet end of the first flow channel is correspondingly communicated with the water inlet, the inlet end of the third flow channel is correspondingly communicated with the outlet end of the first flow channel, the outlet end of the third flow channel is communicated with the inlet end of the second flow channel, and the outlet end of the second flow channel is communicated with the air outlet. The first heating pipe and the second heating pipe are arranged, the positions of the heating chamber and the steam chamber are arranged, and when the first heating pipe and the second heating pipe work at the same time, compared with the mode that one heating pipe is arranged, the problem that the output power cannot be improved due to the fact that a steam generator is small in size can be solved; water sequentially enters the steam chamber through the heating chamber, returns to the heating chamber from the steam chamber and then is discharged from the air outlet, heat energy can be efficiently utilized, the heating pipes are arranged in the heating chamber and the steam chamber respectively, and when the two heating pipes work at the same time, the water is fully heated and vaporized.

Description

Technical Field

[0001] This utility model relates to the field of electric iron technology, specifically to a steam generator structure. Background Technology

[0002] The steam generator in an electric iron generally includes a housing and a heating element. The housing has a flow channel, the water inlet of which is connected to a water pump, and the steam outlet of which is connected to a steam hole on the iron body. The heating element is cast onto the housing and is powered by electricity to heat the water in the flow channel and vaporize it to produce steam.

[0003] Conventional steam generators typically use one heating element to heat one vaporization chamber or two vaporization chambers simultaneously, resulting in insufficient output efficiency and low thermal energy utilization, leading to incomplete water vaporization.

[0004] The steam generator structure provided by this utility model is intended to solve at least one of the above-mentioned technical problems. Summary of the Invention

[0005] Based on the above analysis, this utility model proposes a steam generator structure.

[0006] This utility model is mainly achieved through the following technical solutions:

[0007] The present invention provides a steam generator structure, including a main body, a first heating tube and a second heating tube electrically connected thereto. The main body is provided with a heating chamber and a steam chamber that are connected to each other. The steam chamber is located below the heating chamber. The first heating tube is located in the heating chamber and the second heating tube is located in the steam chamber. The heating chamber is provided with a water inlet and a steam outlet.

[0008] The heating chamber is provided with a first flow channel and a second flow channel that are separated from each other. The inlet end of the first flow channel is connected to the water inlet. The steam chamber is provided with a third flow channel. The inlet end of the third flow channel is connected to the outlet end of the first flow channel. The outlet end of the third flow channel is connected to the inlet end of the second flow channel. The outlet end of the second flow channel is connected to the air outlet.

[0009] Furthermore, the main body includes a top cover, a partition, and a bottom plate;

[0010] The top cover is installed on the upper surface of the partition, the bottom plate is installed on the lower surface of the partition, the heating chamber is disposed between the top cover and the partition, and the steam chamber is disposed between the bottom plate and the partition;

[0011] The first heating element is mounted on the partition plate, and the second heating element is mounted on the base plate.

[0012] Furthermore, the steam generator structure also includes a heating control circuit, which includes a switch control unit. The first heating tube and the second heating tube are disposed between the first electrical terminal and the second electrical terminal. The switch control unit is electrically connected to the first heating tube and the second heating tube respectively, and is used to adjust the electrical connection status of the first heating tube and the second heating tube.

[0013] Furthermore, a first receiving groove is provided on the upper surface of the partition, and the top cover is fitted onto the opening of the first receiving groove to form a heating chamber. Several baffles are provided in the first receiving groove to cooperate with the inner surface of the top cover to form a first flow channel and a second flow channel that are separated from each other.

[0014] Furthermore, the upper surface of the base plate is provided with a second receiving groove, and the partition is fitted onto the opening of the second receiving groove to form a steam chamber. The second receiving groove is provided with a curved and extending protrusion, and a slot extends in the same direction on the protrusion. A plurality of first grooves that block the slots are provided on the protrusion at intervals. The lower surface of the partition is provided with a protruding ridge and a plurality of second grooves that are spaced apart to block the protruding ridge. The protruding ridge extends in the same direction as the slot, and the second grooves are correspondingly provided with the first grooves. The protruding ridge and the slot engage to divide the steam chamber into multiple non-communicating flow channels. The first grooves and the second grooves engage to connect the multiple flow channels to form a third flow channel.

[0015] Furthermore, the water inlet is located on the top cover, and the air outlet is located on the partition.

[0016] Furthermore, the switch control unit is a mechanical switching switch, which includes a first contact, a second contact, a third contact, a fourth contact, a fifth contact, and a sixth contact. The sixth contact is electrically connected to the second end of the first heating tube, the fourth contact is electrically connected to the first end of the first heating tube, a temperature control unit mounted on the main body is provided between the first end of the first heating tube and the first electrical terminal, the fifth contact is electrically connected to the first end of the second heating tube, the first contact is electrically connected to the second end of the second heating tube, the second contact is electrically connected to the sixth contact, and a thermal protection unit mounted on the main body is provided between the second end of the second heating tube and the second electrical terminal.

[0017] The mechanical switch has a first state and a second state. When the mechanical switch is in the first state, the second contact and the third contact are electrically connected, the fifth contact and the sixth contact are electrically connected, and the first heating tube and the second heating tube are connected in series. When the mechanical switch is in the second state, the first contact and the second contact are electrically connected, the fourth contact and the fifth contact are electrically connected, and the first heating tube and the second heating tube are connected in parallel.

[0018] Furthermore, the heating control circuit also includes a control unit and a voltage acquisition unit that are electrically connected to each other. The voltage acquisition unit is used to acquire the input voltage between the first power terminal and the second power terminal.

[0019] When the voltage acquisition unit acquires the input voltage as the first input voltage, the mechanical switching switch is switched to the first state. When the voltage acquisition unit acquires the input voltage as the second input voltage, the mechanical switching switch is switched to the second state. The first input voltage and the second input voltage are different.

[0020] Furthermore, the heating control circuit also includes a control unit and a voltage acquisition unit electrically connected to each other. The voltage acquisition unit is used to acquire the input voltage between the first power terminal and the second power terminal. The switch control unit includes a first relay and a second relay. The coils of the first relay and the second relay are electrically connected to the control unit. The moving contact of the first relay is electrically connected to the first end of the first heating tube. A thermal protection unit mounted on the main body is provided between the second end of the first heating tube and the first power terminal. The first stationary contact of the first relay is electrically connected to the first stationary contact of the second relay. The second stationary contact of the first relay is electrically connected to the first end of the second heating tube. The moving contact of the second relay is electrically connected to the second end of the second heating tube. The second stationary contact of the second relay is electrically connected to the second end of the first heating tube. A temperature control unit mounted on the main body is provided between the first end of the second heating tube and the second power terminal. The control unit is located between the thermal protection unit and the second power terminal.

[0021] When the voltage acquisition unit acquires an input voltage that is the first input voltage, the control unit controls the moving contact of the first relay to be electrically connected to its first stationary contact, and the control unit controls the moving contact of the second relay to be electrically connected to its first stationary contact. The first heating tube and the second heating tube are connected in series. When the voltage acquisition unit acquires an input voltage that is the second input voltage, the control unit controls the moving contact of the first relay to be electrically connected to its second stationary contact, and the control unit controls the moving contact of the second relay to be electrically connected to its second stationary contact. The first heating tube and the second heating tube are connected in parallel. The first input voltage and the second input voltage are different.

[0022] Compared with the prior art, the steam generator structure provided by this utility model has the following advantages:

[0023] 1. By setting up a first heating tube and a second heating tube, and arranging the positions of the heating chamber and the steam chamber, when the first heating tube and the second heating tube work simultaneously, compared to setting up a single heating tube, the problem of not being able to increase the output power due to the small size of the steam generator can be improved; water sequentially enters the steam chamber through the heating chamber, then returns from the steam chamber to the heating chamber, and then is discharged from the steam outlet, which can efficiently utilize thermal energy. By setting heating tubes in the heating chamber and the steam chamber respectively, the water is fully heated and vaporized when the two heating tubes work simultaneously.

[0024] 2. A switch control unit is set up so that the first heating tube and the second heating tube can be switched between parallel and series connection. The output power can be manually adjusted as needed or automatically adjusted according to the input voltage. The input voltage is sampled by the voltage acquisition unit and the switch control unit is automatically adjusted so that the steam generator structure can be matched with different input voltages, thus expanding its application range.

[0025] 3. By designing the flow channels of the heating chamber and steam chamber, the steam passage is extended to accommodate a larger steam volume.

[0026] 4. The separate steam generator structure facilitates processing and assembly. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram (I) of the steam generator structure provided in this embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram (II) of the steam generator structure provided in this embodiment of the present invention.

[0030] Figure 3 This is an exploded view of the steam generator structure provided in this embodiment of the utility model;

[0031] Figure 4 This is a cross-sectional view of the steam generator structure provided in this embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the fluid flow direction in the heating chamber provided in this embodiment of the utility model;

[0033] Figure 6This is a schematic diagram of the flow direction of fluid in the steam chamber provided in this embodiment of the utility model;

[0034] Figure 7 This is a schematic diagram (a) of the structure of the partition provided in this embodiment of the utility model;

[0035] Figure 8a , 8b This is a circuit diagram of one implementation of the switch control unit provided in this utility model embodiment;

[0036] Figure 9 This is a circuit diagram of another implementation of the switch control unit provided in this utility model embodiment.

[0037] The attached figures are labeled as follows:

[0038] 1. Main body; 11. Top cover; 12. Partition; 12a. First receiving groove; 12b. Positioning groove; 121. Baffle; 122. Protruding ridge; 123. Second groove; 13. Bottom plate; 13a. Second receiving groove; 131. Protrusion; 132. Slot; 133. First groove; 134. Boss; 2. First heating tube; 3. Second heating tube; 4. Heating chamber; 4a. Water inlet; 4b. Air outlet; 4c. First flow channel; 4d. Second flow channel; 4e. First perforation; 4f. Second perforation; 5. Steam chamber; 5a. Third flow channel; 5b. Diverting flow channel; 6. Switch control unit; 61. First relay; 62. Second relay; 7. Temperature control unit; 8. Thermal protection unit; 20. Water pump switch; 21. Water pump. Detailed Implementation

[0039] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] like Figure 2 , 4As shown, this utility model provides a steam generator structure, including a main body 1, a first heating tube 2 and a second heating tube 3 electrically connected to each other, and a heating chamber 4 and a steam chamber 5 connected to each other inside the main body 1. The steam chamber 5 and the heating chamber 4 are arranged vertically. Figure 2 As shown, specifically, the steam chamber 5 is located below the heating chamber 4. The first heating pipe 2 is located in the heating chamber 4, and the second heating pipe 3 is located in the steam chamber 5. The heating chamber 4 is provided with a water inlet 4a and an air outlet 4b.

[0043] like Figure 1-2 As shown in Figure 4, the main body 1 includes a top cover 11, a partition 12, and a bottom plate 13. The top cover 11 is installed on the upper surface of the partition 12, and the bottom plate 13 is installed on the lower surface of the partition 12. The heating chamber 4 is disposed between the top cover 11 and the partition 12, and the steam chamber 5 is disposed between the bottom plate 13 and the partition 12. The first heating pipe 2 is installed on the partition 12, the second heating pipe 3 is installed on the bottom plate 13, the water inlet 4a is disposed on the top cover 11, and the steam outlet 4b is disposed on the partition 12.

[0044] like Figure 3-5 As shown, the heating chamber 4 is provided with a first flow channel 4c and a second flow channel 4d that are separated from each other. The inlet end of the first flow channel 4c is connected to the water inlet 4a. The outlet end of the first flow channel 4c is provided with a first perforation 4e, and the inlet end of the second flow channel 4d is provided with a second perforation 4f. The first perforation 4e is located at one end of the partition plate 12, and the second perforation 4f is located at the other end of the partition plate 12.

[0045] In this embodiment, a first receiving groove 12a is provided on the upper surface of the partition 12, and the top cover 11 is fitted onto the opening of the first receiving groove 12a to form a heating chamber 4. A plurality of baffles 121 are provided in the first receiving groove 12a to cooperate with the inner surface of the top cover 11 to form a first flow channel 4c and a second flow channel 4d that are separated from each other. The first flow channel 4c is arranged to meanderingly from the inside to the outside, and the second flow channel 4d is U-shaped. The design of the first flow channel 4c and the division of the heating chamber 4 into two flow channels further extend the steam flow path.

[0046] like Figure 3 , 6 As shown in Figures 7 and 8, a third flow channel 5a is provided in the steam chamber 5. The inlet end of the third flow channel 5a is connected to the first perforation 4e on the outlet end of the first flow channel 4c. The outlet end of the third flow channel 5a is connected to the second perforation 4f on the inlet end of the second flow channel 4d. The outlet end of the second flow channel 4d is connected to the air outlet 4b.

[0047] In this embodiment, the upper surface of the base plate 13 is provided with a second receiving groove 13a, and the partition plate 12 is fitted into the groove opening of the second receiving groove 13a to form a steam chamber 5. The second receiving groove 13a is provided with a curved and extending protrusion 131, and a slot 132 extends in the same direction on the protrusion 131. A plurality of first grooves 133 are provided on the protrusion 131 at intervals to block the slots 132 so that they are partially connected.

[0048] The lower surface of the partition plate 12 is provided with a positioning groove 12b that convexly and concavely engages with the base plate 13. The positioning groove 12b contains a protruding ridge 122 and several spaced second grooves 123 that partially connect the protruding ridge 122. The protruding ridge 122 extends in the same direction as the slot 132, and the second grooves 123 correspond to the first grooves 133. The protruding ridge 122 engages with the slot 132 to divide the steam chamber 5 into multiple non-interconnected flow channels 5b. The first grooves 133 engage with the second grooves 123 to connect the multiple flow channels 5b to form a third flow channel 5a. The third flow channel 5a meanders from the outside in and then outwards to further extend the steam flow path.

[0049] The first groove 133 intersects with the slot 132, and both ends of the first groove 133 protrude from the side of the slot 132 and extend outward. The bottom of the first groove 133 is lower than the bottom of the slot 132. The second groove 123 intersects with the ridge 122, and both ends of the second groove 123 protrude from the side of the ridge 122 and extend outward. The bottom of the second groove 123 is lower than the bottom surface of the ridge 122.

[0050] The first heating tube 2 and the second heating tube 3 are M-shaped. The second heating tube 3 is cast on the base plate 13 to form an M-shaped protrusion 131 on the surface of the second receiving groove 13a. The two outer ends of the protrusion 131 extend to connect with the inner sidewall of one end of the base plate 13. The processing characteristics of the heating tube are fully utilized to form the prototype of the third flow channel 5a, simplifying the structural design of the third flow channel 5a.

[0051] In this embodiment, the second receiving groove 13a is also provided with a boss 134 connected to the surface of the protrusion 131, which is located in the middle of the second receiving groove 13a, so that the third flow channel 5a is further divided into more branch channels 5b.

[0052] like Figure 8a , 8b and Figure 9As shown, the steam generator structure also includes a heating control circuit, which includes a switch control unit 6. The first heating tube 2 and the second heating tube 3 are disposed between the first and second terminals of the input voltage. The switch control unit 6 is electrically connected to the first heating tube 2 and the second heating tube 3 respectively, and is used to adjust the electrical connection state of the first heating tube 2 and the second heating tube 3. The first heating tube 2 and the second heating tube 3 can work simultaneously (including in series or parallel), or they can work individually.

[0053] The steam generator structure is not limited to having two heating tubes; the number of heating tubes can be increased as needed, and the number of switch control units 6 can be adjusted accordingly to further expand its applicability.

[0054] Specifically, the first heating element 2 and the second heating element 3 are switched between parallel and series connection.

[0055] As one implementation method, such as Figure 8a , 8b As shown, the switch control unit 6 is a mechanical switching switch, which includes a first contact, a second contact, and a third contact arranged sequentially from left to right on the upper layer, and a fourth contact, a fifth contact, and a sixth contact arranged sequentially from left to right on the lower layer.

[0056] The sixth contact is electrically connected to the second end of the first heating tube 2, the fourth contact is electrically connected to the first end of the first heating tube 2, a temperature control unit 7 mounted on the main body 1 is provided between the first end of the first heating tube 2 and the first electrical terminal, the fifth contact is electrically connected to the first end of the second heating tube 3, the first contact is electrically connected to the second end of the second heating tube 3, the second contact is electrically connected to the sixth contact, and a thermal protection unit 8 mounted on the main body 1 is provided between the second end of the second heating tube 3 and the second electrical terminal. The temperature control unit 7 is located on the outer surface of the base plate 13 and corresponds to the boss 134, and the thermal protection unit 8 is located on the outer surface of the base plate 13.

[0057] The mechanical switch has a first state and a second state. When the input voltage is the first input voltage, the mechanical switch is in the first state, with the second and third contacts electrically connected, and the fifth and sixth contacts electrically connected, and the first heating element 2 and the second heating element 3 connected in series. When the input voltage is the second input voltage, the mechanical switch is in the second state, with the first and second contacts electrically connected, and the fourth and fifth contacts electrically connected, and the first heating element 2 and the second heating element 3 connected in parallel. The first input voltage is different from the second input voltage; specifically, the first input voltage is greater than the second input voltage. The rated voltages of the first heating element 2 and the second heating element 3 can be set to be the same or different according to actual needs, and their rated power can also be set to be the same or different according to actual needs.

[0058] Users can manually adjust the mechanical switching switch according to the input voltage, which is low-cost and can save on manufacturing costs. In this embodiment, the first input voltage is 220V-240V and the second input voltage is 120V, which can adapt to the power needs of different countries.

[0059] like Figure 9 As shown, the heating control circuit also includes a control unit and a voltage acquisition unit that are electrically connected. The voltage acquisition unit is used to acquire the input voltage between the first power terminal and the second power terminal. The switch control unit 6 includes a first relay 61 and a second relay 62.

[0060] The coils of the first relay 61 and the second relay 62 are electrically connected to the control unit. The moving contact of the first relay 61 is electrically connected to the first end of the first heating tube 2. A thermal protection unit 8 installed on the main body 1 is provided between the second end of the first heating tube 2 and the first electrical terminal. The first stationary contact S11 of the first relay 61 is electrically connected to the first stationary contact S21 of the second relay 62. The second stationary contact S12 of the first relay 61 is electrically connected to the first end of the second heating tube 3.

[0061] The moving contact of the second relay 62 is electrically connected to the second end of the second heating tube 3, and the second stationary contact S22 of the second relay 62 is electrically connected to the second end of the first heating tube 2. A temperature control unit 7 mounted on the main body 1 is provided between the first end and the second electrical terminal of the second heating tube 3. The control unit is located between the thermal protection unit 8 and the second electrical terminal. The control unit identifies the magnitude of the input voltage by acquiring voltage information from the voltage acquisition unit and automatically controls the switching states of the first relay 61 and the second relay 62. By utilizing the series and parallel connection relationship of the first heating tube 2 and the second heating tube 3, the heating control circuit can adapt to different input voltages. The rated voltages of the first heating tube 2 and the second heating tube 3 are the same, and their rated power can be set to be the same or different according to actual needs.

[0062] When the voltage acquisition unit acquires the input voltage as the first input voltage, the control unit controls the moving contact of the first relay 61 to be electrically connected to its first stationary contact S11, and controls the moving contact of the second relay 62 to be electrically connected to its first stationary contact S21, and the first heating tube 2 and the second heating tube 3 are connected in series.

[0063] When the voltage acquisition unit detects the second input voltage, the control unit controls the moving contact of the first relay 61 to connect electrically to its second stationary contact S12, and controls the moving contact of the second relay 62 to connect electrically to its second stationary contact S22. The first heating tube 2 and the second heating tube 3 are connected in parallel. The first input voltage is different from the second input voltage; specifically, the first input voltage is greater than the second input voltage. The voltage acquisition unit, the switch control unit 6, and the control unit are integrated into one unit. The voltage acquisition unit uses a conventional voltage sampling circuit. The first input voltage is 220V-240V, and the second input voltage is 120V to adapt to the electricity needs of different countries.

[0064] In this embodiment, when the first input voltage is 240V and the second input voltage is 120V, the first heating tube 2 and the second heating tube 3 are both set to 120V / 500W. Compared to a single 120V / 500W heating tube, the total output power of the two heating tubes is ultimately 1000W, which increases the power.

[0065] Water pump switch 20 and water pump 21 are connected in series between thermal protection unit 8 and control unit. One end of water pump switch 20 is electrically connected to thermal protection unit 8, and one end of water pump 21 is electrically connected to control unit.

[0066] In use, the steam generator structure is first heated through the heating tube. After heating is completed, the water pump switch 20 is turned on to pump water into the heating chamber 4. When the temperature of the main body 1 has not reached the set temperature, the steam generator continues to be heated through the heating tube. When the temperature of the main body 1 reaches the set temperature, the current temperature is maintained and heating is stopped.

[0067] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A steam generator structure, characterized in that: The device includes a main body (1), a first heating tube (2) and a second heating tube (3) connected by electricity. The main body (1) is provided with a heating chamber (4) and a steam chamber (5) connected to each other. The steam chamber (5) and the heating chamber (4) are arranged vertically. The first heating tube (2) is located in the heating chamber (4) and the second heating tube (3) is located in the steam chamber (5). The heating chamber (4) is provided with a water inlet (4a) and an air outlet (4b). The heating chamber (4) is provided with a first flow channel (4c) and a second flow channel (4d) that are separated from each other. The inlet end of the first flow channel (4c) is connected to the water inlet (4a). The steam chamber (5) is provided with a third flow channel (5a). The inlet end of the third flow channel (5a) is connected to the outlet end of the first flow channel (4c). The outlet end of the third flow channel (5a) is connected to the inlet end of the second flow channel (4d). The outlet end of the second flow channel (4d) is connected to the air outlet (4b).

2. The steam generator structure as described in claim 1, characterized in that: The main body (1) includes a top cover (11), a partition (12) and a bottom plate (13); The top cover (11) is installed on the upper surface of the partition (12), the bottom plate (13) is installed on the lower surface of the partition (12), the heating chamber (4) is disposed between the top cover (11) and the partition (12), and the steam chamber (5) is disposed between the bottom plate (13) and the partition (12). The first heating tube (2) is installed on the partition plate (12), and the second heating tube (3) is installed on the base plate (13).

3. The steam generator structure as described in claim 1 or 2, characterized in that: The steam generator structure also includes a heating control circuit, which includes a switch control unit (6). The first heating tube (2) and the second heating tube (3) are located between the first and second terminals of the input voltage. The switch control unit (6) is electrically connected to the first heating tube (2) and the second heating tube (3) respectively, and is used to adjust the electrical connection status of the first heating tube (2) and the second heating tube (3).

4. The steam generator structure as described in claim 2, characterized in that: The upper surface of the partition (12) is provided with a first receiving groove (12a), and the top cover (11) is fitted onto the opening of the first receiving groove (12a) to form a heating chamber (4). The first receiving groove (12a) is provided with a plurality of baffles (121) to cooperate with the inner surface of the top cover (11) to form a first flow channel (4c) and a second flow channel (4d) that are separated from each other.

5. The steam generator structure as described in claim 2 or 4, characterized in that: The upper surface of the base plate (13) is provided with a second receiving groove (13a). The partition plate (12) is fitted into the groove of the second receiving groove (13a) to form a steam chamber (5). The second receiving groove (13a) is provided with a curved and extending protrusion (131). The protrusion (131) is provided with a slot (132) extending in the same direction. The protrusion (131) is provided with a first groove (133) that partially connects the blocking slots (132) at intervals. The lower surface of the partition (12) is provided with a protruding ridge (122) and a number of second grooves (123) spaced apart to block the protruding ridge (122) from partially connecting it. The protruding ridge (122) extends in the same direction as the slot (132), and the second groove (123) is provided corresponding to the first groove (133). The protruding ridge (122) and the slot (132) engage to divide the steam chamber (5) into multiple non-interconnected flow channels (5b). The first groove (133) and the second groove (123) cooperate to connect the multiple flow channels (5b) to form a third flow channel (5a).

6. The steam generator structure as described in claim 2, characterized in that: The water inlet (4a) is located on the top cover (11), and the air outlet (4b) is located on the partition (12).

7. The steam generator structure as described in claim 3, characterized in that: The switch control unit (6) is a mechanical switching switch, which includes a first contact, a second contact, a third contact, a fourth contact, a fifth contact, and a sixth contact. The sixth contact is electrically connected to the second end of the first heating tube (2), the fourth contact is electrically connected to the first end of the first heating tube (2), a temperature control unit (7) installed on the main body (1) is provided between the first end of the first heating tube (2) and the first electrical terminal, the fifth contact is electrically connected to the first end of the second heating tube (3), the first contact is electrically connected to the second end of the second heating tube (3), the second contact is electrically connected to the sixth contact, and a thermal protection unit (8) installed on the main body (1) is provided between the second end of the second heating tube (3) and the second electrical terminal. The mechanical switch has a first state and a second state. When the input voltage is the first input voltage, the mechanical switch is in the first state, the second contact and the third contact are electrically connected, the fifth contact and the sixth contact are electrically connected, and the first heating tube (2) and the second heating tube (3) are connected in series. When the input voltage is the second input voltage, the mechanical switch is in the second state, the first contact and the second contact are electrically connected, the fourth contact and the fifth contact are electrically connected, the first heating tube (2) and the second heating tube (3) are connected in parallel, and the first input voltage and the second input voltage are different.

8. The steam generator structure as described in claim 3, characterized in that: The heating control circuit also includes a control unit and a voltage acquisition unit that are electrically connected. The voltage acquisition unit is used to acquire the input voltage between the first power terminal and the second power terminal. The switch control unit (6) includes a first relay (61) and a second relay (62). The coils of the first relay (61) and the second relay (62) are electrically connected to the control unit, the moving contact of the first relay (61) is electrically connected to the first end of the first heating tube (2), a thermal protection unit (8) installed on the main body (1) is provided between the second end of the first heating tube (2) and the first electrical terminal, the first stationary contact of the first relay (61) is electrically connected to the first stationary contact of the second relay (62), and the second stationary contact of the first relay (61) is electrically connected to the first end of the second heating tube (3). The moving contact of the second relay (62) is electrically connected to the second end of the second heating tube (3), and the second stationary contact of the second relay (62) is electrically connected to the second end of the first heating tube (2). A temperature control unit (7) installed on the main body (1) is provided between the first end and the second electrical terminal of the second heating tube (3). The control unit is located between the thermal protection unit (8) and the second electrical terminal. When the voltage acquisition unit acquires the input voltage as the first input voltage, the control unit controls the moving contact of the first relay (61) to be electrically connected to its first stationary contact, and controls the moving contact of the second relay (62) to be electrically connected to its first stationary contact. The first heating tube (2) and the second heating tube (3) are connected in series. When the voltage acquisition unit acquires the input voltage as the second input voltage, the control unit controls the moving contact of the first relay (61) to be electrically connected to its second stationary contact, and controls the moving contact of the second relay (62) to be electrically connected to its second stationary contact. The first heating tube (2) and the second heating tube (3) are connected in parallel. The first input voltage and the second input voltage are different.

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