A heating device, a sanitary water supply device, and a sanitary cleaning device

Abstract

The present invention discloses a heating device, a sanitary water supply device and a sanitary cleaning device. The heating device includes a body and a ceramic heating sheet. The body is provided with a heating cavity, and the ceramic heating sheet is disposed in the heating cavity of the body, so that a heating flow channel is formed in the heating cavity. One end of the heating flow channel has a first water inlet, and the other end of the heating flow channel has a first water outlet. The ceramic heating sheet has a first heating surface and a second heating surface which are arranged back to back. The flowing direction of the heating flow channel is to flow along the first heating surface and the second heating surface in sequence. The present invention enables water to flow along the two heating surfaces on both sides of the ceramic heating sheet in sequence, thereby increasing the heating path of water in the heating cavity, uniformly and sufficiently heating the water in the heating cavity, and at the same time improving the heating efficiency of the ceramic heating sheet.

Description

Technical Field

[0001] The present invention relates to the field of sanitary wares, and particularly to a heating device, a sanitary water supply device, and a sanitary cleaning device. Background Art

[0002] The cleaning water of a traditional sanitary cleaning device for hip washing and / or feminine washing needs to be heated to an appropriate temperature by a heating device and then output. Generally, a ceramic heating sheet is used as the heater in such a heating device. In a traditional heating device, the water flow only flows along the single-sided heating surface of the ceramic heating sheet and then is output, resulting in a short heating path for the water flow, and the water cannot be heated sufficiently and evenly. For this reason, in a heating device of the prior art, ribs are arranged between the ceramic heating sheet and the body of the heating device, so as to form an S-shaped heating flow channel between the ceramic heating sheet and the body. Although this way extends the heating path of the water flow, since the ribs are attached to the heating surface of the ceramic heating sheet, a certain heating area of the ceramic heating sheet is occupied, resulting in low heating efficiency of the ceramic heating sheet. Summary of the Invention

[0003] An object of the present invention is to provide a sanitary water supply device and a sanitary cleaning device that can improve the heating efficiency of a ceramic heating sheet for the technical problems existing in the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a heating device, including a body and a ceramic heating sheet. The body is provided with a heating cavity, and the ceramic heating sheet is arranged in the heating cavity of the body, so that a heating flow channel is formed in the heating cavity. One end of the heating flow channel has a first water inlet, and the other end of the heating flow channel has a first water outlet; the ceramic heating sheet has a first heating surface and a second heating surface arranged back to back, and the flow direction of the heating flow channel is to flow along the first heating surface and the second heating surface in sequence.

[0005] Further, the number of the ceramic heating sheets is several, and the several ceramic heating sheets are arranged side by side, and there is a partition between adjacent ceramic heating sheets, so that the heating flow channel is in a meandering shape around each ceramic heating sheet.

[0006] Further, the ceramic heating sheet is in a vertical state, and the water inlet structure and the water outlet structure are located on the side of the heating cavity.

[0007] Further, the top of the heating cavity is open, and an end cover is connected to the body, and the end cover closes the opening.

[0008] Further, a plurality of first positioning grooves are arranged side by side on the bottom surface of the heating chamber, and a plurality of second positioning grooves are arranged side by side on the bottom surface of the end cover. The bottoms of the plurality of ceramic heating sheets are respectively inserted into the plurality of first positioning grooves, and the tops of the plurality of ceramic heating sheets are respectively inserted into the plurality of second positioning grooves; the top of the partition is fixed to the end cover, and the bottom of the partition is inserted into a third positioning groove arranged on the bottom surface of the heating chamber.

[0009] Further, the body is further provided with a water outlet chamber, and the water outlet chamber communicates with the first water outlet; a water passing channel is arranged on the end cover, and one end of the water passing channel communicates with the water outlet chamber.

[0010] Further, an installation opening communicating with the heating chamber and used for placing the ceramic heating sheet is arranged on the side surface of the body; and / or, the first water outlet is located at the center or a position above the center at the other end of the heating flow channel, and the first water outlet is located on the side surface at the other end of the heating flow channel.

[0011] Further, the flowing direction of the heating flow channel is sequentially along the length direction of the first heating surface and the length direction of the second heating surface.

[0012] Further, the body is a water tank, and the water tank is further provided with a water storage chamber capable of admitting water, and a first water inlet of the heating flow channel communicates with the water storage chamber.

[0013] Further, the heating chamber is located at the top of the water tank, and a water suction pipe is further included. One end of the water suction pipe communicates with the first water inlet of the heating flow channel, the other end of the water suction pipe extends into the water storage chamber, and the other end of the water suction pipe is lower than the lowest water level line of the water storage chamber.

[0014] Further, the other end of the water suction pipe is higher than a self-cleaning water outlet arranged by a spray device of the sanitary cleaning device.

[0015] Further, the top of the water storage chamber surrounds or partially surrounds the heating chamber, and the highest water level line of the water storage chamber is higher than the bottom end of the heating chamber.

[0016] Further, the water tank is further provided with an overflow pipe. The top end of the overflow pipe is provided with an overflow port located in the water storage chamber, the bottom end of the overflow pipe is provided with a drain port, and the drain port leads to the outside of the water tank.

[0017] Further, the water tank is further provided with a water inlet pipe. One end of the water inlet pipe is provided with a second water outlet located in the water storage chamber, the other end of the water inlet pipe is provided with a second water inlet, and the second water inlet leads to the outside of the water tank; the second water outlet is higher than the overflow port.

[0018] The present invention further provides a sanitary water supply device, including a water tank capable of admitting water, a water pump, and further including the heating device as described above. The water entering the water tank is pumped to the heating chamber and output through the water pump.

[0019] The present invention further provides a sanitary water supply device, which includes a water pump and also includes the heating device as described above. The water entering the water storage chamber is pumped to the heating chamber and output through the water pump.

[0020] The present invention further provides a sanitary cleaning device, which includes a spraying device and also includes the sanitary water supply device as described above. The spraying device is arranged on the downstream side of the water pump.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Since the flow direction of the heating flow channel is successively along the first heating surface and the second heating surface, the present invention enables the water flow to successively flow along the two heating surfaces (i.e., the first heating surface and the second heating surface) of the ceramic heating sheet. Thereby, not only the heating path of the water in the heating chamber is increased, the water is uniformly and fully heated in the heating chamber, but also the ceramic heating sheet can be completely immersed in the water, improving the heating efficiency of the ceramic heating sheet. In addition, the heating flow channel surrounds the first heating surface and the second heating surface of the ceramic heating sheet, making the cross-sectional area of the heating flow channel larger, and it is not easy to be blocked by scale after long-term use.

[0023] 2. The number of the ceramic heating sheets is several, and the several ceramic heating sheets are arranged in parallel, and there are partitions between adjacent ceramic heating sheets, making the heating flow channel in a meandering shape surrounding each ceramic heating sheet, thereby further extending the heating path of the water and heating the water more uniformly and fully.

[0024] 3. The setting of the end cover makes the positioning of the ceramic heating sheet more convenient and reliable, and at the same time is convenient for later maintenance and regular scale removal.

[0025] 4. The main body is a water tank, enabling the water tank to integrate the heating device. Thereby, not only can the components and assembly steps of the heating device be reduced, saving costs, but also the overall structure of the sanitary cleaning device using the water tank is more concise and the occupied space is reduced.

[0026] 5. The heating chamber is located at the top of the water tank and is communicated with the water storage chamber through the water suction pipe, which can avoid the heating chamber always having water, thereby avoiding the ceramic heating sheet in the heating chamber being immersed in water in the non-working state, and further making the ceramic heating sheet less likely to scale.

[0027] 6. The top of the water storage chamber surrounds or partially surrounds the heating chamber, and the highest water level line of the water storage chamber is higher than the bottom end of the heating chamber. It can not only preheat the normal temperature water in the water storage chamber by using the external heat dissipation of the heating chamber, thereby achieving the effects of fully utilizing the external heat dissipation of the heating chamber and saving energy, but also protect the ceramic heating sheet in the heating chamber with the normal temperature water in the water storage chamber in the abnormal heating state.

[0028] 7. The provision of the overflow pipe enables the water tank of the present invention to also have overflow and exhaust functions. The water inlet surface of the water inlet pipe is higher than the overflow surface of the overflow pipe, so that the water tank of the present invention also has an anti-siphon function, preventing the water in the water storage cavity from flowing back into the water supply pipe connected to the water inlet pipe and polluting the water source when negative pressure occurs in the water supply pipe.

[0029] The present invention will be further described in detail below in conjunction with the drawings and embodiments; however, a heating device, a sanitary water supply device, and a sanitary cleaning device of the present invention are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is an exploded schematic view of the heating device of the present invention in Embodiment 1;

[0031] Figure 2 is a structural schematic view of the heating device of the present invention in Embodiment 1;

[0032] Figure 3 is a cross-section of the heating device of the present invention in Embodiment 1 Figure 1 ;

[0033] Figure 4 is a cross-section of the heating device of the present invention in Embodiment 1 Figure 2 ;

[0034] Figure 5 is a cross-section of the heating device of the present invention in Embodiment 1 Figure 3 ;

[0035] Figure 6 is a schematic view of the water inlet state of the heating device of the present invention in Embodiment 1 (cross-section);

[0036] Figure 7 is a schematic view of the overflow state of the heating device of the present invention in Embodiment 1 (cross-section);

[0037] Figure 8 is a schematic view of the pumping state of the heating device of the present invention in Embodiment 1 (cross-section);

[0038] Figure 9 is a schematic view of the water flow direction of the heating flow channel of the heating device of the present invention in Embodiment 1 (cross-section);

[0039] Figure 10 is an exploded schematic view of the sanitary water supply device of the present invention in Embodiment 1;

[0040] Figure 11 is a three-dimensional structure schematic view of the sanitary water supply device of the present invention in Embodiment 1;

[0041] Figure 12Schematic diagram of the pumping state of the sanitary water supply device of the first embodiment of the present invention Figure 1 (Cross-section);

[0042] Figure 13 Schematic diagram of the pumping state of the sanitary water supply device of the first embodiment of the present invention Figure 2 (Cross-section);

[0043] Figure 14 Schematic diagram of the pumping state of the sanitary water supply device of the first embodiment of the present invention Figure 2 (Cross-section);

[0044] Figure 15 Cross-sectional view of the sanitary cleaning device of the first embodiment of the present invention in the siphon drainage state;

[0045] Figure 16 Exploded view of the water tank of the second embodiment of the present invention;

[0046] Figure 17 Cross-sectional view of the upper shell of the water tank of the second embodiment of the present invention;

[0047] Figure 18 Schematic diagram of the water inlet state of the water tank of the second embodiment of the present invention (cross-section);

[0048] Figure 19 Schematic diagram of the overflow state of the water tank of the second embodiment of the present invention (cross-section);

[0049] Figure 20 Exploded view of the sanitary water supply device of the second embodiment of the present invention. Detailed implementation manners

[0050] For the embodiments, please refer to Figures 1 - 9As shown in the figure, a heating device of the present invention includes a body and a ceramic heating sheet 7. The body is provided with a heating cavity 13. The ceramic heating sheet 7 is disposed in the heating cavity 13 of the body, and a heating flow channel 131 is formed in the heating cavity 13. One end of the heating flow channel 131 has a first water inlet 1311, and the other end of the heating flow channel 131 has a first water outlet 1312. The ceramic heating sheet 7 has a first heating surface 71 and a second heating surface 72 which are arranged back to back. The flowing direction of the heating flow channel 131 is to flow along the first heating surface 71 and the second heating surface 72 in sequence. Specifically, the flowing direction of the heating flow channel 131 is to flow along the length direction of the first heating surface 71 and the length direction of the second heating surface 72 in sequence, but it is not limited to this. In other embodiments, the flowing direction of the heating flow channel 131 is to flow along the width direction of the first heating surface and the width direction of the second heating surface in sequence. The body is further provided with a water outlet cavity 16, and the water outlet cavity 16 communicates with the first water outlet 1312. The body is specifically a water tank 1, and the water tank 1 is further provided with a water storage cavity 15 that can intake water. The first water inlet 1311 of the heating flow channel 131 is communicated with the water storage cavity 15 through a water inlet structure.

[0051] In this embodiment, the number of the ceramic heating sheets 7 is several. The several ceramic heating sheets 7 are distributed side by side, and there is a partition 42 parallel to the ceramic heating sheets 7 between adjacent ceramic heating sheets 7. There is a gap between each ceramic heating sheet 7 and the adjacent partition, so that the heating flow channel 131 is in a meandering shape around each ceramic heating sheet 7. The side of the water tank 1 is provided with an installation opening 14 that communicates with the heating cavity 13 and is used for placing the ceramic heating sheet 7. The cross-section and longitudinal section of the heating cavity 13 are substantially square, and the ceramic heating sheet 7 is in the shape of a square flat plate. In other embodiments, the number of the ceramic heating sheets is one.

[0052] In this embodiment, the ceramic heating sheet 7 is in a vertical state, and the water inlet structure and the water outlet cavity 16 are located on the side of the heating cavity 13. The top of the heating cavity 13 is open, and an end cover 4 is connected to the water tank 1. The end cover 4 closes the opening and positions the ceramic heating sheet 7. Specifically, a plurality of first positioning grooves 132 are arranged side by side on the bottom surface of the heating cavity 13, and a plurality of second positioning grooves 43 are arranged side by side on the bottom surface of the end cover 4. The bottoms of the plurality of ceramic heating sheets 7 are respectively inserted into the plurality of first positioning grooves 132, and the tops of the plurality of ceramic heating sheets 7 are respectively inserted into the plurality of second positioning grooves 43; the top of the partition plate 42 is fixed to the end cover 4. Specifically, the partition plate 42 and the end cover 4 are integrally formed, but it is not limited thereto. The bottom of the partition plate 42 is inserted into a third positioning groove 133 provided on the bottom surface of the heating cavity 13. The number of the ceramic heating sheets 7 is two, but it is not limited thereto. A water passing channel 41 is provided on the end cover 4, and one end of the water passing channel 41 communicates with the water outlet cavity 16. The first water outlet 1312 is located at the center or a position slightly above the center on the other side surface of the heating flow channel 131, ensuring that the bubbles generated during the heating process can be evenly carried out of the heating cavity 13 along with the water flow, preventing the bubbles generated during the heating process from accumulating. The first water inlet 1311 is located on one side surface of one end of the heating flow channel 131.

[0053] In this embodiment, the heating cavity 13 is located at the top of the water tank 1, and the water outlet cavity 16 is also located at the top of the water tank 1. The water inlet structure includes a water suction pipe 5. One end of the water suction pipe 5 communicates with the first water inlet 1311 of the heating flow channel, and the other end of the water suction pipe 5 extends into the water storage cavity 15, and the other end of the water suction pipe 5 is lower than the lowest water level line of the water storage cavity 15. Specifically, the water suction pipe 5 is vertically arranged in the water storage cavity 15. The heating cavity 13 is located at the top of the water tank 1 and communicates with the water storage cavity 15 through the water suction pipe 5. In this way, it can be avoided that the heating cavity 13 always has water, so as to avoid the ceramic heating sheet 7 in the heating cavity 13 being immersed in water in a non-working state, and further make the ceramic heating sheet less likely to scale. The other end of the water suction pipe 5 is higher than the self-cleaning water outlet provided by the spraying device of the sanitary cleaning device.

[0054] In this embodiment, the water storage cavity 15 surrounds or partially surrounds the heating cavity 13 at the top, and the highest water level line of the water storage cavity 15 is higher than the bottom end of the heating cavity 13. In this way, not only can the external heat dissipation of the heating cavity 13 be used to preheat the normal temperature water in the water storage cavity 15, so as to achieve an energy-saving effect, but also the normal temperature water in the water storage cavity 15 can be used to protect the ceramic heating sheet 7 in the heating cavity 13 in an abnormal heating state. That is, when the ceramic heating sheet 7 is abnormally heated and the water temperature is too high, the normal temperature water in the water storage cavity 15 can be used to cool the heating cavity 13 to a certain extent, so as to avoid the ceramic heating sheet 7 from being overheated and easily damaged.

[0055] In this embodiment, the water tank 1 is provided with an overflow structure, which is specifically an overflow pipe 2. The top end of the overflow pipe 2 is provided with an overflow port 21 located in the water storage cavity 15, and the bottom end of the overflow pipe 2 is provided with a drain port 22, which leads to the outside of the water tank 1. Specifically, the drain port 22 is located on the bottom wall of the water tank 1, but is not limited thereto. In other embodiments, the drain port is located at the bottom of the side wall of the water tank. In other embodiments, the overflow structure is an overflow port provided on the side wall of the water tank.

[0056] In this embodiment, the water tank 1 is further provided with a water inlet pipe 3. One end of the water inlet pipe 3 is provided with a second water outlet 31 located in the water storage cavity 15, and the water surface of the second water outlet 31 constitutes the water surface of the water inlet structure; the other end of the water inlet pipe 3 is provided with a second water inlet 32, which leads to the outside of the water tank 1. Specifically, the second water inlet 32 is located on the side wall of the water tank 1, as Figure 2 shown, but is not limited thereto. In other embodiments, the second water inlet is located on the bottom wall or the top wall of the water tank. The second water outlet 31 is higher than the overflow port 21.

[0057] In this embodiment, the overflow pipe 2 is close to the inner side surface of the water tank 1, so that the overflow pipe 2 can make more space inside the water tank 1, facilitating the installation of other components. Specifically, the overflow pipe 2 is close to the inner side surface of the following upper shell. The overflow pipe 2 is away from the water outlet 31 of the water inlet pipe 3, so that the fluctuation of the water surface near the water inlet pipe 3 when the water inlet pipe 3 intakes water will not cause water to flow away from the overflow pipe 2, thereby reducing water loss.

[0058] In this embodiment, the water tank 1 includes a bottom plate 12 and an upper shell 11 with an open bottom end. The bottom plate 12 is hermetically connected to the open bottom end of the upper shell 11, and the two enclose the water storage cavity 15. Specifically, the four sides of the bottom plate 12 and the upper shell 11 are fixed by ultrasonic welding. The heating cavity 13 and the water outlet cavity 16 are located in the upper shell 11, and the water extraction pipe 5 is arranged in the upper shell 11. Specifically, the water extraction pipe 5 and the upper shell 11 are integrally injection-molded, but are not limited thereto. The end cover 4 is connected to the upper shell 11, and the overflow pipe 2 and the water inlet pipe 3 are vertically arranged on the bottom plate 12, and the overflow pipe 2 and the water inlet pipe 3 are integrally injection-molded with the bottom plate 12, but are not limited thereto. The bottom plate 12 specifically includes a flat main board 121 and a small side wall 122 protruding from the top edge of the main board 121. The main board 121 constitutes the bottom wall of the water tank 1, and the surrounding side walls of the upper shell 11 and the small side wall 122 constitute the side walls of the water tank 1. The water inlet 32 of the water inlet pipe 3 is located on the small side wall 122.

[0059] For a heating device of the present invention, during application, the other end of the water passing channel 41 of the end cover 4 is connected to the water inlet end of the water pump.

[0060] When water enters, water enters from the second water inlet 32, flows upward along the internal channel of the water inlet pipe 3, and finally flows out from the second water outlet 31 of the water inlet pipe 3 and falls into the water storage cavity 15, as Figure 6 shown. During the water inlet process, the air in the water storage cavity 15 is gradually compressed and discharged from the overflow pipe 2. When the device for controlling water inlet (this device can include, for example, a water level detector arranged in the water tank, a solenoid valve arranged at the second water inlet 32, and a controller for coordinating the working states of the water level detector and the solenoid valve, etc.) fails, resulting in continuous water inlet at the second water inlet 32, and when the water in the water storage cavity 15 exceeds the highest water level line, the excess water will enter from the overflow port 21 at the top of the overflow pipe 2 and flow along the internal channel of the overflow pipe 2 to the drain port 22, as Figure 7 shown, and finally falls into the toilet water tank.

[0061] Since the second water outlet 31 is higher than the overflow port 21, the second water outlet 31 will never be submerged in water and is always in the air layer above the overflow port 21. Therefore, when there is negative pressure in the water supply pipe connected to the second water inlet 32, the water in the water tank 1 will not flow back, thus avoiding polluting the water source. The overflow pipe 2 can both exhaust air and play an overflow role, and when overflowing, the water can be directly discharged into the toilet water tank without connecting other pipelines, thereby making the appearance of the water tank of the present invention more concise and beautiful, and more convenient for assembly.

[0062] When pumping water, under the action of the water pump, the water in the water storage cavity 15 flows into the heating cavity 13 through the water extraction pipe 5 and flows along the meandering heating flow path 131 and is quickly heated by the ceramic heating sheet 7, as Figure 9 shown, and finally passes through the water outlet cavity 16, the water passing channel 41 of the end cover, and the water pump output in sequence.

[0063] Since the water tank 1 is provided with a heating cavity 13, the water tank of the present invention can integrate the heating devices of the prior art. Thus, not only can the components and assembly steps of the heating device be reduced, the cost be saved, but also the overall structure of the sanitary cleaning device using this water tank is more concise and the occupied space is reduced.

[0064] The setting of the meandering heating flow path 131 increases the heating path of the water in the heating cavity 13, enables the water to be heated evenly and fully in the heating cavity 13, and at the same time makes the ceramic heating sheet 7 completely immersed in water, improving the heating efficiency of the ceramic heating sheet. In addition, the heating flow path 131 surrounds the first heating surface 71 and the second heating surface 71 of the ceramic heating sheet 7, making the cross-sectional area of the heating flow path 131 larger, and it is not easy to be blocked by scale during long-term use.

[0065] Please refer to Figures 10 - 14As shown in the figure, a sanitary water supply device of the present invention includes a water pump 6 and a heating device of the present invention described in the first embodiment above. The water entering the water storage chamber 15 is pumped to the heating chamber 13 and output by the water pump 6. Specifically, the water pump 6 is arranged on the downstream side of the heating device, that is, the first water outlet 1312 of the heating flow channel is communicated with the water inlet end of the water pump 6.

[0066] In this embodiment, the water pump 6 is arranged between two protective covers 8 and 9, and the water inlet end of the water pump 6 is connected to the other end of the water passing channel 41 of the end cover 4 through one of the protective covers 8.

[0067] During water pumping, under the action of the water pump 6, the water in the water storage chamber 15 flows into the heating chamber 13 through the water suction pipe 5, and is rapidly heated by the ceramic heating sheet 7 as it flows along the meandering heating flow channel 131, and finally is output through the water outlet chamber 16, the water passing channel 41 of the end cover, and the water pump 6 in sequence, as Figures 12 - 14 shown.

[0068] Please refer to Figure 15 As shown in the figure, a sanitary cleaning device of the present invention includes a spraying device 10 for spraying cleaning water, and also includes a sanitary water supply device of the present invention described in the first embodiment above. The spraying device 10 is arranged on the downstream side of the water pump 6, that is, the spraying device 10 is communicated with the water outlet end of the water pump 6 to spray the cleaning water pumped out by the water pump 6 to achieve hip washing or feminine washing.

[0069] In this embodiment, the other end of the water suction pipe 5 is higher than the self-cleaning water outlet 101 of the spraying device 10. During the spraying process, when a sudden power failure / water cut occurs, the height difference △h between the other end of the water suction pipe 5 (the other end of the water suction pipe is the water suction port) and the self-cleaning water outlet 101 of the spraying device forms a siphon phenomenon to drain the remaining water in the water tank 1, as Figure 15 shown, thereby avoiding the equipment from stopping due to sudden power failure / water cut and the remaining water in the water tank being unable to be drained.

[0070] For a sanitary cleaning device of the present invention, the parts not involved are the same as or can be implemented by the prior art. For example, a liquid level detector for controlling the highest water level and the lowest water level is arranged in the water storage chamber of the water tank.

[0071] Embodiment 2

[0072] Please refer to Figures 16 - 19 As shown in the figure, a heating device of the present invention is different from the first embodiment above in that: the bottom end of the water inlet pipe 3 extends outside the water tank 1, so that the second water inlet 32 is located outside the water tank 1. The bottom end of the overflow pipe 2 also extends outside the water tank 1, so that the drain port 22 is located outside the water tank 1.

[0073] In this embodiment, the water tank 1 also includes an upper shell 11 and a bottom plate 12. The overflow pipe 2 and the water inlet pipe 3 are integrally injection-molded at the middle of the upper shell 11 and are attached to the inner side of the upper shell 11. The top of the water storage cavity 15 is open and is covered by the end cap 4.

[0074] In this embodiment, the ceramic heating sheet 7 also cooperates with the partition plate 42 to form a meandering heating flow channel 131 in the heating cavity 13.

[0075] When water enters, the water enters from the second water inlet 32, flows upward along the internal channel of the water inlet pipe 3, and finally flows out from the second water outlet 31 of the water inlet pipe 3 and falls into the water storage cavity 15, as Figure 18 shown. During the water inlet process, the air in the water storage cavity 15 is gradually squeezed and discharged from the overflow pipe 2. When the device for controlling water inlet (this device generally includes a water level detector arranged in the water tank, a solenoid valve arranged at the second water inlet 32, and a controller for coordinating the working states of the water level detector and the solenoid valve) fails, resulting in continuous water inlet at the second water inlet 32 and the water in the water storage cavity 15 exceeding the highest water level line, the excess water will enter from the overflow port 21 at the top of the overflow pipe 2 and flow along the internal channel of the overflow pipe 2 to the drain port 22, as Figure 19 shown, and finally falls into the toilet water tank.

[0076] When pumping water, under the action of the water pump connected to the water passing channel 41 of the end cap, the water in the water storage cavity 15 flows into the heating cavity 13 through the water extraction pipe 5, flows along the meandering heating flow channel and is quickly heated by the ceramic heating sheet 7, and finally is output through the water pump.

[0077] Please refer to Figure 20 shown. A sanitary water supply device of the present invention includes a water pump 6 and a heating device of the present invention described in the above Embodiment 2. The water entering the water storage cavity 15 is pumped to the heating cavity 13 and output through the water pump 6. Specifically, the water pump 6 is fixed outside the water tank 1 and is connected to the other end of the water passing channel 41 of the end cap 4

[0078] When pumping water, under the action of the water pump 6, the water in the water storage cavity 15 flows into the heating cavity 13 through the water extraction pipe 5, flows along the meandering heating flow channel 131 and is quickly heated by the ceramic heating sheet 7, and finally is output in sequence through the water outlet cavity 16, the water passing channel 41 of the end cap, and the water pump 6.

[0079] A sanitary cleaning device of the present invention includes a spraying device for spraying cleaning water, and also includes a sanitary water supply device of the present invention described in the above Embodiment 2. The spraying device is communicated with the water outlet end of the water pump to spray the cleaning water pumped by the water pump to realize hip washing or feminine washing.

[0080] Embodiment 3

[0081] A heating device of the present invention is different from the above embodiments in that: the body is not a water tank but is separate from the water tank.

[0082] A sanitary water supply device of the present invention includes a water tank and a water pump, and further includes a heating device of the present invention described in Embodiment 3 above. The water entering the water tank is pumped to the heating chamber and output through the water pump. Specifically, the water tank is arranged on the upstream side of the heating device, and the water pump is arranged on the downstream side of the heating device.

[0083] A sanitary cleaning device of the present invention includes a spraying device for spraying cleaning water, and further includes a sanitary water supply device of the present invention described in Embodiment 3 above. The spraying device is communicated with the water outlet end of the water pump to spray the cleaning water pumped out by the water pump to achieve hip washing or feminine washing.

[0084] The above embodiments are only used to further illustrate a heating device, a sanitary water supply device and a sanitary cleaning device of the present invention, but the present invention is not limited to the embodiments. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention all fall within the protection scope of the technical solution of the present invention.

Claims

1. A heating device, comprising a body and a ceramic heating sheet. The body is provided with a heating cavity. The ceramic heating sheet is arranged in the heating cavity of the body, and a heating flow channel is formed in the heating cavity. One end of the heating flow channel has a first water inlet, and the other end of the heating flow channel has a first water outlet. It is characterized in that: The ceramic heating sheet has a first heating surface and a second heating surface arranged back to back. The flowing direction of the heating flow channel is to flow along the first heating surface and the second heating surface in sequence. The body is a water tank, and the water tank is further provided with a water storage cavity capable of admitting water. The first water inlet of the heating flow channel is communicated with the water storage cavity. The heating cavity is located at the top of the water tank, and a water suction pipe is further included. One end of the water suction pipe is communicated with the first water inlet of the heating flow channel, and the other end of the water suction pipe extends into the water storage cavity.

2. The heating device according to claim 1, It is characterized in that: The number of the ceramic heating sheets is several. The several ceramic heating sheets are arranged side by side, and there is a partition between adjacent ceramic heating sheets, so that the heating flow channel is in a meandering shape surrounding each ceramic heating sheet.

3. The heating device according to claim 2, It is characterized in that: The ceramic heating sheet is in a vertical state, and the first water inlet and the first water outlet are located on the side surface of the heating cavity.

4. The heating device according to claim 3, It is characterized in that: The top end of the heating cavity is open, and an end cover is connected to the body. The end cover closes the opening.

5. The heating device according to claim 4, It is characterized in that: A plurality of first positioning grooves arranged side by side are provided on the bottom surface of the heating cavity, and a plurality of second positioning grooves arranged side by side are provided on the bottom surface of the end cover. The bottoms of the several ceramic heating sheets are respectively inserted into the several first positioning grooves, and the tops of the several ceramic heating sheets are respectively inserted into the several second positioning grooves. The top of the partition is fixed to the end cover, and the bottom of the partition is inserted into a third positioning groove provided on the bottom surface of the heating cavity.

6. The heating device according to claim 4, It is characterized in that: The body is further provided with a water outlet cavity, and the water outlet cavity is communicated with the first water outlet. A water passing channel is provided on the end cover, and one end of the water passing channel is communicated with the water outlet cavity.

7. The heating device according to claim 1, It is characterized in that: An installation opening communicating with the heating cavity and used for placing the ceramic heating sheet is provided on the side surface of the body; and / or, the first water outlet is located at the center or a position above the center at the other end of the heating flow channel, and the first water inlet is located on the side surface at the other end of the heating flow channel.

8. The heating device according to claim 1, It is characterized in that: The flowing direction of the heating flow channel is to flow along the length direction of the first heating surface and the length direction of the second heating surface in sequence.

9. The heating device according to claim 1, It is characterized in that: The other end of the water suction pipe is lower than the lowest water level line of the water storage cavity.

10. The heating device according to claim 9, It is characterized in that: The other end of the water suction pipe is higher than the self-cleaning water outlet provided by the spray device of the sanitary cleaning device.

11. The heating device according to claim 9, It is characterized in that: The top of the water storage cavity surrounds or partially surrounds the heating cavity, and the highest water level line of the water storage cavity is higher than the bottom end of the heating cavity.

12. The heating device according to claim 1, wherein: The water tank is further provided with an overflow pipe, the top end of the overflow pipe is provided with an overflow port located in the water storage cavity, the bottom end of the overflow pipe is provided with a drain port, and the drain port leads to the outside of the water tank.

13. The heating device according to claim 12, wherein: The water tank is further provided with a water inlet pipe, one end of the water inlet pipe is provided with a second water outlet located in the water storage cavity, the other end of the water inlet pipe is provided with a second water inlet, and the second water inlet leads to the outside of the water tank; the second water outlet is higher than the overflow port.

14. A sanitary water supply device, comprising a water tank capable of admitting water and a water pump, wherein: It further comprises a heating device according to any one of claims 1-8, and the water entering the water tank is pumped to the heating cavity and output through the water pump.

15. A sanitary water supply device, comprising a water pump, wherein: It further comprises a heating device according to any one of claims 9-13, and the water entering the water storage cavity is pumped to the heating cavity and output through the water pump.

16. A sanitary cleaning device, comprising a spraying device, wherein: It further comprises a sanitary water supply device according to claim 14 or 15, and the spraying device is arranged on the downstream side of the water pump.

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