Steam generator

Abstract

The steam generator comprises an upper cover and a middle shell, the middle shell is located between the upper cover and a lower cover, a water inlet and a steam opening are formed in the two ends of the middle shell, a water body space and a steam space are formed in the middle shell, the water inlet is communicated with the water body space, and the steam opening is communicated with the steam space. A temperature control boss is formed in the center of the bottom face of the water body space, a water inlet groove and a scale accumulation groove are formed in the two corners of the two side walls, close to the water inlet, of the water body space, the water inlet is eccentrically formed and communicated with the water inlet groove, and the water body space and the steam space are separated through a baffle. The water inlet is formed in the side close to the water inlet groove, water can surround in the water space with the temperature control boss as the center, steam impacts the scale accumulation groove, scale is collected, and meanwhile the situation that the water inlet is blocked due to the fact that the scale in the steam space falls into the water inlet is avoided through the baffle.

Description

Technical Field

[0001] The present invention relates to the technical field of steam generators, and particularly to a steam generator. Background Art

[0002] Traditional mops are difficult to thoroughly clean stubborn stains and bacteria. Steam mops, with their bactericidal and disinfectant functions using high-temperature steam, can effectively remove stains and kill bacteria, making them an ideal choice for household cleaning.

[0003] Existing steam generators have some obvious deficiencies: 1. They are prone to scale accumulation; 2. The steam volume is insufficient. In view of the problems existing in the prior art, the purpose of this invention patent is to provide a steam generator device that is not prone to scale accumulation, has high thermal efficiency, is economical and practical, and has stable operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a steam generator. The water inlet is arranged near the water inlet tank, enabling the water body to surround within the water body space centered on the temperature control boss, so that the steam impacts the scale accumulation tank to collect the scale. At the same time, a baffle is used to prevent the scale in the steam space from falling at the water inlet and blocking the water inlet.

[0005] The present invention provides the following technical solution: A steam generator includes an upper cover and an intermediate housing. The intermediate housing is located between the upper cover and the lower cover. Water inlets and steam outlets are formed at both ends of the intermediate housing. The interior of the intermediate housing includes a water body space and a steam space. The water inlet is communicated with the water body space, and the steam outlet is communicated with the steam space. A temperature control boss is formed at the center of the bottom surface of the water body space. A heating tube is inserted into the interior of the intermediate housing, and the heating tube is located inside the temperature control boss. Water inlet tanks and scale accumulation tanks are formed at two corners on both side walls of the water body space close to the water inlet. The water inlet is eccentrically arranged and communicated with the water inlet tank. The water body space and the steam space are separated by a baffle. A steam guiding port is formed at one end of the baffle, and the steam guiding port communicates the water body space and the steam space.

[0006] To ensure that the water body has sufficient contact area with the temperature control boss to turn the water body into steam, the steam guiding port and the scale accumulation tank are on the same side.

[0007] To guide the scale and prevent the scale from blocking the water inlet, the water inlet tank and the scale accumulation tank are symmetrically arranged and both include a first side and a second side perpendicular to each other. A first arc is formed between the right angles of the first side and the second side. A third side is formed on the first side, and a fourth side is formed on the second side. A second arc is formed between the third side and the fourth side.

[0008] To direct the steam, rounded corners are formed on the second arc edges near the temperature control boss side in the water inlet tank and the scale accumulation tank.

[0009] To direct the flow direction of the steam, guide fins are formed on the side surface of the temperature control boss, and the guide fins are located between the temperature control boss and the baffle.

[0010] To prevent the steam port from being blocked by scale, a steam flow channel is opened on the surface of the steam space. The steam flow channel is communicated with the steam port. Multiple blocking columns are formed on the surface of the steam flow channel, and the blocking columns are located at the end of the steam port.

[0011] To ensure the sealing performance of the side of the middle housing, a first sealing ring is provided at the upper end of the side wall of the middle housing. A first sealing groove is formed on the surface of the upper cover, and the first sealing ring and the first sealing groove are matched.

[0012] To ensure the sealing performance of the temperature control boss and prevent steam from leaking from the temperature control boss, a second sealing ring is provided on the outer edge of the upper surface of the temperature control boss. A temperature control jack is formed on the inner surface of the upper cover. The side wall of the temperature control jack is in a shape matching the temperature control boss. A sealing outer ring is formed outside the temperature control jack. A temperature control sealing groove is opened between the sealing outer ring and the side wall of the temperature control jack, and the temperature control sealing groove is matched with the second sealing ring.

[0013] To insulate the middle housing, a lower cover is connected to the lower end of the middle housing. A groove is formed in the lower cover, and a heat insulation groove is formed between the groove and the middle housing.

[0014] To block the scale in the steam space, a baffle pressing strip is formed on the upper cover, dividing the upper cover into a water body cabin and a steam cabin, and the baffle pressing strip is arranged corresponding to the baffle.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0016] (1) By arranging the water inlet near the water inlet tank side, the water body can surround in the water body space with the temperature control boss as the center, so that the steam impacts the scale accumulation tank to collect the scale. At the same time, by using the baffle, it is avoided that the scale in the steam space falls at the water inlet and causes the water inlet to be blocked;

[0017] (2) Moreover, the eccentrically arranged water inlet extends the contact area between the water body and the temperature control boss, ensuring that the water body is heated into steam;

[0018] (3) By using the sunken water inlet tank and scale accumulation tank, the scale enters the sunken parts of the two tanks to collect the scale, reducing the probability of the scale entering the water inlet. Brief Description of the Drawings

[0019] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0020] Figure 1 is a perspective view of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the internal structure of the middle housing of the present invention;

[0022] Figure 3 is a partially enlarged schematic view of area A of the present invention;

[0023] Figure 4 is a perspective view of the middle housing of the present invention;

[0024] Figure 5 is a perspective view of the upper cover of the present invention;

[0025] In the figure: 1. Upper cover; 101. Water body cabin; 102. Steam cabin; 103. Baffle strip; 104. Temperature control jack; 105. Sealing outer ring; 106. Temperature control sealing groove; 107. First sealing groove; 2. Middle housing; 21. Water inlet; 22. Steam port; 23. Water inlet groove; 24. Scale accumulation groove; 241. First side; 242. Second side; 243. First arc side; 244. Third side; 245. Fourth side; 246. Second arc side; 25. Temperature control boss; 251. Second sealing ring; 26. Flow guiding fin; 27. Baffle; 28. Steam guiding port; 29. Steam flow channel; 210. Stopper; 211. First sealing ring; 3. Lower cover; 4. Thermostat; 5. Glass fiber tube; 6. Teflon tube; 7. Thermal fuse; 8. Screw; 9. Pressure plate; 10. Positive power supply; 11. Negative power supply. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 to 4, the present invention provides a technical solution: a steam generator, comprising an upper cover 1 and an intermediate housing 2. Water inlets 21 and steam outlets 22 are formed at both ends of the intermediate housing 2. The interior of the intermediate housing 2 includes a water body space and a steam space. The water inlet 21 communicates with the water body space, and the steam outlet 22 communicates with the steam space. A temperature control boss 25 is formed at the center of the bottom surface of the water body space. A heating tube is inserted into the interior of the intermediate housing 2, and the heating tube is located inside the temperature control boss 25 to transfer heat to the temperature control boss 25. The water body is heated and evaporated through the temperature control boss 25. Water inlets 23 and scale accumulation grooves 24 are provided at two corners on both side walls of the water body space near the water inlet 21. The water inlet 21 is eccentrically arranged and is opened on the side of the water inlet 23. The water body space and the steam space are separated by a baffle 27. Through the arrangement of the baffle 27, scale is blocked to prevent the scale in the steam space from falling at the water inlet 21 and causing blockage of the water inlet 21. A steam guiding port 28 is formed at one end of the baffle 27. The steam guiding port 28 and the scale accumulation groove 24 are on the same side. The steam guiding port 28 communicates the water body space and the steam space. By eccentrically arranging the water inlet 21, after the water body enters the water body space, it circulates in the water body space centered on the temperature control boss 25. When the water body contacts the high-temperature temperature control boss 25, the water body will evaporate into steam. And the steam guiding port 28 and the scale accumulation groove 24 are on the same side, that is, distributed diagonally to the water inlet 21, which prolongs the contact area between the water body and the temperature control boss 25 and ensures the stable generation of steam. A part of the steam will flow from the steam guiding port 28 into the steam space and be discharged from the steam outlet 22. Another part continues to circulate around the water body space centered on the temperature control boss 25, and the steam is sprayed into the scale accumulation groove 24 to prolong the residence time of the steam at this place, so that the scale stays in the scale accumulation groove 24. And because the scale accumulation groove 24 is recessed, when the steam passes by, impurities will precipitate downward, causing the scale to accumulate in the scale accumulation groove 24. At the same time, the water inlet 23 is also recessed, causing the scale to accumulate in the recess to prevent the scale from blocking the water inlet 21 and affecting the water inflow rate.

[0028] As Figure 2 and 3As shown, the water inlet tank 23 and the scale accumulation tank 24 are symmetrically arranged, and both include a first side 241 and a second side 242 that are perpendicular to each other. A first arc side 243 is formed at the right angle between the first side 241 and the second side 242. The first arc side 243 protrudes inward. The steam is guided by the first arc side 243. After the steam contacts the first arc side 243, it flows along the second side 242. A third side 244 is formed on the first side 241, and a fourth side 245 is formed on the second side 242. A second arc side 246 is formed between the third side 244 and the fourth side 245. Due to the downwardly concave water inlet tank 23 and scale accumulation tank 24, part of the steam can be retained in the water inlet tank 23 and the scale accumulation tank 24, and the scale accumulates in the two concave tanks, which is convenient for cleaning.

[0029] On the second arc side 246 near the temperature control boss 25 side in the water inlet tank 23 and the scale accumulation tank 24, a fillet is formed. The fillet can further guide the steam and change the flow direction of the steam.

[0030] As Figure 2 shown, two guiding fins 26 are formed on the side surface of the temperature control boss 25. The guiding fins 26 are located between the temperature control boss 25 and the baffle 27. The two guiding fins 26 are symmetrically distributed, respectively on both sides of the temperature control boss 25, and the guiding fins 26 are arc-shaped. The two guiding fins 26 are distributed in a V shape. The guiding fins 26 guide the steam to make the steam surround the temperature control boss 25.

[0031] Steam channels 29 are formed on the surface of the steam space. The steam channels 29 are also recessed. The steam channels 29 are communicated with the steam port 22. Multiple blocking columns 210 are formed on the surface of the steam channels 29. The blocking columns 210 are located at the end of the steam port 22. The steam enters the steam channels 29 through the steam guiding port 28. Under the action of the blocking columns 210, the steam is blocked to prevent the scale from directly entering the steam port 22 under the action of the steam and blocking the steam port 22.

[0032] As Figure 2 and 5 shown, a first sealing ring 211 is arranged at the upper end of the side wall of the middle housing 2. A first sealing groove 107 is formed on the surface of the upper cover 1. The first sealing ring 211 is embedded in the first sealing groove 107 to keep the middle housing 2 and the upper cover 1 sealed and prevent steam from overflowing.

[0033] On the outer edge of the upper surface of the temperature control boss 25, a second sealing ring 251 is provided. On the inner surface of the upper cover 1, a temperature control jack 104 is formed. The side wall of the temperature control jack 104 is in a shape matching that of the temperature control boss 25. The temperature control boss 25 is circular with ears on both sides. On the outer side of the temperature control jack 104, a sealing outer ring 105 is formed. A temperature control sealing groove 106 is provided between the sealing outer ring 105 and the side wall of the temperature control jack 104. The temperature control sealing groove 106 cooperates with the second sealing ring 251, and the second sealing ring 251 is inserted into the temperature control sealing groove 106, so that the temperature control boss 25 is hermetically connected to the temperature control jack 104 on the upper cover 1, preventing water vapor from entering the temperature control boss 25 and preventing steam leakage.

[0034] On the upper cover 1, a baffle pressing strip 103 is formed, dividing the upper cover 1 into a water body cabin 101 and a steam cabin 102. The baffle pressing strip 103 is correspondingly arranged with the baffle 27. When the upper cover 1 and the middle shell 2 are connected, the baffle 27 and the baffle pressing strip 103 are pressed tightly together, so that steam can only enter the steam space through the steam guiding port 28. At the same time, the scale in the steam space is blocked, preventing the scale from falling into the water body space and blocking the water inlet 21.

[0035] The lower end of the middle shell 2 is connected with a lower cover 3. A groove is formed in the lower cover 3, and a heat insulation groove is formed between the groove and the middle shell. The lower cover 3 is a heat insulation board. The heat insulation groove can be filled with air or other heat insulation materials, reducing the contact area between the middle shell 2 and the lower cover 3, reducing heat transfer, lowering the temperature of the lower cover 3, and preventing other internal components from being damaged due to excessive temperature of the lower cover 3.

[0036] A thermostat 4 is fixedly inserted on the upper cover 1. The temperature control boss 25 is formed at the lower end of the thermostat 4. A pressing piece 9 is provided at the upper end of the thermostat 4, and the pressing piece 9 is fixed on the upper cover 1. The pressing piece 9 includes a U-shaped main body and connecting pieces on both sides. The connecting pieces are fixed on the end face of the upper cover 1 by screws 8, fixing the thermostat 4 on the upper cover 1, so that the temperature control boss 25 is inserted into the middle shell 2 to position the temperature control boss 25 and ensure that the temperature control boss 25 is installed in place.

[0037] As Figure 1 shown, a round tube is fixed on the upper cover 1. A temperature fuse 7 is arranged in the round tube. The round tube is a Teflon tube 6. A glass fiber tube 5 is fixed on the side of the thermostat 4. A power supply positive electrode 10 is connected to the upper cover 1. The other side of the power supply positive electrode 10 is connected to a heating tube in the middle shell 2. A power supply negative electrode 11 is also connected to the heating tube. The temperature fuse 7 is arranged on the power supply positive electrode 10 to protect the circuit.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A steam generator, comprising an upper cover and an intermediate shell, wherein the intermediate shell is located between the upper cover and the lower cover, and a water inlet and a steam port are formed at both ends of the intermediate shell, wherein the intermediate shell includes a water space and a steam space, wherein the water inlet is connected to the water space, and the steam port is connected to the steam space, and wherein: A temperature control boss is formed at the center of the bottom surface of the water body space, a heating tube is inserted into the interior of the intermediate shell, and the heating tube is located inside the temperature control boss. A water inlet groove and a scale accumulation groove are provided at two corners of the two side walls of the water body space close to the water inlet. The water inlet is eccentrically arranged and connected to the water inlet groove. The water body space and the steam space are separated by a baffle, and a steam guide port is provided at one end of the baffle, and the steam guide port connects the water body space and the steam space.

2. A steam generator according to claim 1, characterized in that: The steam guide port and the scale accumulation groove are on the same side.

3. A steam generator according to claim 1, characterized in that: The water inlet groove and the scale accumulation groove are symmetrically opened, and both include a first side and a second side that are perpendicular to each other, a first arc-shaped edge is formed between the right angles of the first side and the second side, a third side is formed on the first side, a fourth side is formed on the second side, and a second arc-shaped edge is formed between the third side and the fourth side.

4. A steam generator according to claim 2, characterized in that: The second arc-shaped edges in the water inlet groove and the scale accumulation groove close to the temperature control boss side are formed with rounded corners.

5. A steam generator according to claim 1, characterized in that: A guide fin is formed on the side surface of the temperature control boss, and the guide fin is located between the temperature control boss and the baffle.

6. A steam generator according to claim 1, characterized in that: A steam flow channel is provided on the surface of the steam space, the steam flow channel is communicated with the steam port, and a plurality of blocking columns are formed on the surface of the steam flow channel, the blocking columns are located at the ends of the steam port.

7. A steam generator according to claim 1, characterized in that: A first sealing ring is arranged on the upper end of the side wall of the intermediate shell, a first sealing groove is formed on the surface of the upper cover, and the first sealing ring and the first sealing groove cooperate with each other.

8. A steam generator according to claim 1, characterized in that: A second sealing ring is arranged on the outer edge of the upper surface of the temperature control boss, a temperature control socket is formed on the inner surface of the upper cover, the side wall of the temperature control socket is in a shape matching the temperature control boss, a sealing outer ring is formed on the outer side of the temperature control socket, a temperature control sealing groove is opened between the sealing outer ring and the side wall of the temperature control socket, and the temperature control sealing groove cooperates with the second sealing ring.

9. A steam generator according to claim 1, characterized in that: The lower end of the intermediate shell is connected with a lower cover, a groove is formed in the lower cover, and a heat insulation groove is formed between the groove and the intermediate shell.

10. A steam generator according to claim 1, characterized in that: The upper cover is formed with a baffle strip, which divides the upper cover into a water body cabin and a steam cabin body, and the baffle strip is arranged corresponding to the baffle.

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