Toilet and sanitary system

Abstract

The invention relates to the technical field of toilet stools, in particular to a toilet stool and a sanitation system, and aims to solve the problem that the toilet experience is affected due to the fact that peculiar smell in an existing public toilet is serious. To this end, the toilet according to the present invention comprises: a toilet bowl; at least a heat exchange part of the first heat exchanger is arranged in the urinal, and the first heat exchanger is used for cooling urine in the urinal and drying the urinal. When a person urinates, cooling is carried out, volatilization of urine is reduced, a room is not filled with urine molecules any more, and it is avoided that when the temperature is too high, the urine molecules are decomposed, and peculiar smells such as urine odor and odor are generated. In addition, the urinal can be dried after flushing is completed, so that no urine remains in the urinal, it is guaranteed that no residual urine volatilizes after urinating, it is further guaranteed that the indoor peculiar smell is small, and the toilet using experience is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of toilets, and in particular provides a toilet and a sanitary system. Background Art

[0002] As people travel more and more, supporting facilities such as train stations, high-speed rail stations, and service areas are also increasing, and these supporting facilities are all equipped with public toilets. Men's restrooms are equipped with several urinals. Because urine contains components such as sodium chloride, potassium, sulfate, phosphate, ammonia, protein, creatinine, and uric acid, especially in the hot summer, if the urine remaining in the urinal is not discharged into the sewer in time, the protein and uric acid in it will decompose and produce components such as ammonia, which will cause urine odor and stench, affecting the toilet experience.

[0003] Although some toilets with slightly better services can flush urine away in time, during the process of using the toilet, the urine just discharged by the human body will evaporate due to its high temperature, causing a serious odor in the toilet.

[0004] To solve the above technical problems, the existing technology has adopted a measure of installing a fan in the toilet to exhaust the air inside the toilet by blowing air outwards, so that fresh air from outside can flow into the room and improve the odor situation. However, this method has limited effect due to the low ventilation efficiency of the fan.

[0005] Therefore, the relevant field is in urgent need of a toilet and a sanitation system to solve the above technical problems. Summary of the Invention

[0006] The present invention aims to solve the above technical problem, that is, to solve the problem that the odor in existing public toilets is serious and affects the toilet experience.

[0007] In a first aspect, the present invention provides a toilet comprising:

[0008] urinal;

[0009] The first heat exchanger, at least a heat exchange portion of which is arranged in the toilet bowl, is used to cool the urine in the toilet bowl and dry the toilet bowl.

[0010] In a specific embodiment of the above toilet, a plurality of liquid permeable holes are provided on the heat exchange portion, and the urine can flow through the liquid permeable holes, so that the first heat exchanger cools the urine.

[0011] In a specific embodiment of the above toilet, it further includes: a fan, which is used to suck air into the first heat exchanger.

[0012] In a specific embodiment of the above toilet, it further includes: a volute, the fan is arranged in the volute, the air inlet of the volute faces the first heat exchanger, and the air outlet of the volute is connected to the outside.

[0013] In a specific embodiment of the above toilet, it further includes a first filter screen, which is arranged on the upper surface of the heat exchange part. The urine flows into the heat exchange part after being filtered by the first filter screen.

[0014] In a specific embodiment of the above toilet, the air inlet is provided with a wind shield, and when the fan is turned on, the wind shield opens under the suction force of the fan.

[0015] In a specific embodiment of the above toilet, it also includes: a second filter screen, which is arranged between the air inlet and the heat exchange part, and the wind flowing through the heat exchange part flows into the volute through the second filter screen.

[0016] In a specific embodiment of the above toilet, it further comprises: a detection member for detecting whether there is someone in front of the toilet;

[0017] When it is detected that there is someone in front of the toilet, controlling the first heat exchanger to perform cooling;

[0018] When it is detected that a person has left the toilet, the first heat exchanger is enabled to generate heat after a preset time to dry the toilet.

[0019] In a second aspect, the present invention provides a sanitation system comprising:

[0020] at least one toilet as described above;

[0021] The outdoor unit is connected to the first heat exchanger and is used to provide refrigerant to the first heat exchanger so as to cool the first heat exchanger.

[0022] In a specific embodiment of the above sanitary system, it further includes a second heat exchanger, which is arranged in parallel with the first heat exchanger and connected to the outdoor unit;

[0023] The second heat exchanger is used to heat the water in the water tank.

[0024] When adopting the above-mentioned technical solution, the toilet of the present invention includes a toilet bowl and a first heat exchanger. At least the heat exchange portion of the first heat exchanger is disposed within the toilet bowl, and the heat exchange portion is used to cool urine in the toilet bowl and dry the toilet bowl. Specifically, cooling occurs while a person is urinating, reducing urine volatilization, preventing the chamber from being filled with urine molecules, and preventing urine molecules from decomposing and generating odors such as urine odor and foul odors when the temperature is too high. Furthermore, the toilet bowl can be dried after flushing, eliminating any residual urine in the toilet bowl. This ensures that no residual urine evaporates after urination, further minimizing odors in the chamber and enhancing the toilet experience.

[0025] When cooling and drying, suction air is used, which can discharge the odorous air to the outside instead of into the room, ensuring that the odor in the room is smaller and enhancing the toilet experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0027] Figure 1 1 is a structural diagram of a toilet provided in the first embodiment of the present invention;

[0028] Figure 2 It is a structural diagram of the sanitation system provided in the third embodiment of the present invention.

[0029] List of reference numerals:

[0030] 1. Toilet bowl; 2. First heat exchanger; 3. Fan; 4. Volute; 5. First filter; 6. Second filter; 7. Wind deflector; 10. Outdoor unit; 20. Second heat exchanger; 30. Water tank. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0032] It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the device or component described must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "installed," "disposed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] Although conventional toilets employ a fan to expel air from the toilet, allowing fresh air to flow into the room and alleviate odor, this approach is limited in effectiveness due to the fan's low ventilation efficiency. To address the aforementioned technical issues, the present invention provides a toilet and sanitary system.

[0035] Example 1

[0036] like Figure 1 As shown, this embodiment discloses a urinal, which is mainly a men's urinal and is mainly used in toilets in railway stations, bus stations, service areas, shopping malls and office buildings, etc. These places are generally equipped with multiple urinals.

[0037] The toilet comprises a bowl 1 and a first heat exchanger 2. At least the heat exchange portion of the first heat exchanger 2 is disposed within the bowl 1. When in cooling mode, the heat exchange portion primarily cools urine within the bowl 1, reducing urine volatilization and preventing the chamber from being filled with urine molecules. This prevents the decomposition of urine molecules at high temperatures, which can produce urine odor and foul odor. After flushing the bowl 1, the first heat exchanger 2 can be heated to dry the bowl 1.

[0038] The urinal 1 can be any urinal for men, and can be a half-length urinal hung on the wall, or a relatively high vertical urinal placed on the ground in close contact with the wall. The specific shape can also be arc-shaped or angular.

[0039] The heat exchange portion is provided with a plurality of liquid-permeable holes through which urine can flow, allowing the first heat exchanger 2 to cool the urine and dry the toilet bowl 1. Specifically, the heat exchange portion can be configured in the shape of heat sink fins, with a flow path provided within the heat sink fins. A refrigerant can flow through the flow path, absorbing heat and removing heat from the urine to cool the urine. Alternatively, the refrigerant can heat the toilet bowl 1 to dry it.

[0040] The toilet also includes a fan 3, a volute 4, a first filter 5, and a second filter 6. The first filter 5 is positioned on the upper surface of the heat exchange unit. Urine is filtered through the first filter 5 and then flows into the heat exchange unit. In other words, the first filter 5 covers the heat exchange unit and filters urine or impurities that fall into the toilet bowl 1, preventing them from clogging the first heat exchanger 2.

[0041] The fan 3 is used to suck air from the first heat exchanger 2 and is specifically arranged at the rear of the toilet 1. The volute 4 is arranged at the rear or side of the toilet 1, with the air inlet of the volute 4 facing the first heat exchanger 2, and the air outlet of the volute 4 connected to the outside. Specifically, the volute 4 can be directly extended to the outside, so that the air sucked by the fan 3 is directly discharged to the outside. The fan 3 is arranged in the volute 4, and the fan 3 is specifically an exhaust fan 3. Using an exhaust fan 3 instead of a blower fan 3 can discharge the air in the toilet to the outside, so as to discharge the odorous air in the toilet to the outside, and make the volatile part of the urine flow to the outside, and will not evaporate in large quantities into the air in the toilet, which can better solve the odor problem in the toilet.

[0042] Regarding the connection of the air outlet of the volute 4 to the outdoors, it should be noted that since urinals are often used in public places and there are multiple urinals, each equipped with a fan 3 and a volute 4, an exhaust duct leading to the outdoors can be provided in the toilet, so that the air outlets of the multiple volutes 4 are all connected to the exhaust duct, and the air in the volute 4 is discharged to the outdoors through the exhaust duct. This arrangement is more cost-effective and convenient for layout. This does not deviate from the basic principles of the present invention and falls within the scope of protection of the present invention.

[0043] The air inlet is provided with a windshield 7, which opens under the suction of the fan 3 when the fan 3 is turned on. A mounting ring is provided at the air inlet, wherein the mounting ring is sealed with the volute 4, and of course the two can also be formed in one piece. The windshield 7 is specifically hinged to the mounting ring and is located on the side close to the fan 3, so that the windshield 7 can only be opened toward the side of the fan 3 and cannot be opened toward the side of the first heat exchanger 2. Moreover, due to the action of its own gravity, it is in a normally closed state and can only be opened under the action of the wind when the fan 3 is drawing air, so that the wind flowing through the heat exchange part can flow into the volute 4. The windshield 7 is in a normally closed state and can be opened only when the urine is cooled or the first heat exchanger 2 is dried, under the action of the fan 3. This can prevent the air in the volute 4 from flowing back to the urinal, and also prevent the air in the exhaust duct of other urinals from flowing back into the toilet when ventilating. After the urine is cooled or the first heat exchanger 2 is dried, the air in the volute 4 will not flow back into the toilet.

[0044] To prevent urine from entering the volute 4 through the air inlet, the air inlet is specifically positioned above the urine outflow port, and a second filter 6 is disposed between the air inlet and the heat exchange unit. Air flowing through the heat exchange unit flows through the second filter 6 into the volute 4. The second filter 6 is specifically a waterproof, breathable membrane that allows air to pass but not liquid. Even if urine were to reach the second filter 6, it would not be able to pass through the second filter 6 and enter the air inlet, thus ensuring that the volute 4 is not contaminated and that the volute 4 and the fan 3 are not corroded.

[0045] The detection element is used to detect whether someone is in front of the toilet bowl 1. Specifically, the detection element is an infrared sensor, which is installed on the top of the toilet bowl 1. It detects whether someone is in front of the toilet bowl 1 based on distance. Specifically, it can detect when someone enters the toilet bowl 1, as well as when someone leaves the toilet bowl 1. The structure and principle of this infrared sensor are similar to those used in urinals in the prior art, and its structure and principle are not further described in this invention.

[0046] When the detection element detects the presence of someone in front of the toilet bowl 1, specifically when someone is detected, the first heat exchanger 2 is controlled to start cooling, preparing to cool urine. When the person in front of the toilet bowl 1 urinates, the heat exchanger is already in the cooling state, allowing urine entering the toilet bowl 1 to be immediately cooled, preventing it from evaporating into the air. This can greatly reduce odor in the toilet. Moreover, since cooling is only activated after the presence of someone in the toilet bowl 1 is detected, electricity can be saved.

[0047] When it is detected that someone has left the toilet 1, the first heat exchanger 2 is activated to generate heat after a preset time to dry the toilet 1. After the person leaves, some urine will remain in the first heat exchanger 2 due to its relative humidity. If it evaporates, it will increase the odor in the toilet. However, by drying and exhausting air during the drying process, urine will no longer remain in the first heat exchanger 2 and the toilet 1, and will not evaporate into the room, ensuring that there is no odor in the room caused by urine. Since the toilet 1 will be flushed after the person leaves, drying is performed after a preset time; the preset time is set to 5 seconds, and in other embodiments it can also be 8 seconds or 10 seconds, etc., depending on the flushing time of the toilet 1.

[0048] Example 2

[0049] This embodiment discloses a toilet, which is mainly a sitting toilet or a squat toilet, and is mainly used in toilets in railway stations, bus stations, service areas, shopping malls and office buildings, etc. These places are generally equipped with multiple toilets.

[0050] The toilet comprises a bowl 1 and a first heat exchanger 2. At least the heat exchange portion of the first heat exchanger 2 is disposed within the bowl 1. When in cooling mode, the heat exchanger primarily cools urine and feces within the bowl 1, reducing their volatilization and preventing the chamber from being filled with urine molecules. This prevents the decomposition of urine and feces molecules at high temperatures, which can produce urine odor and foul odor. After flushing, the first heat exchanger 2 can be heated to dry the bowl 1.

[0051] The heat exchange unit is at least partially disposed at the bottom of the toilet bowl 1, but does not cover the bowel opening, allowing urine and feces to be flushed normally. The heat exchange unit is provided with a plurality of liquid-permeable holes, through which urine can flow, allowing the first heat exchanger 2 to cool the urine and dry the toilet bowl 1. The heat exchange unit can be specifically configured in the form of heat sink fins, with a flow path provided within the fins. A refrigerant can flow through the flow path, absorbing heat and removing heat from the urine to cool the urine; it can also heat the toilet bowl 1 to dry it.

[0052] The toilet also includes a fan 3, a volute 4, a first filter 5, and a second filter 6. The first filter 5 is positioned on the upper surface of the heat exchange unit. Urine is filtered through the first filter 5 and then flows into the heat exchange unit. In other words, the first filter 5 covers the heat exchange unit and filters urine or impurities that fall into the toilet bowl 1, preventing them from clogging the first heat exchanger 2.

[0053] The fan 3 is used to suck air from the first heat exchanger 2 and is specifically arranged at the rear of the toilet 1. The volute 4 is arranged at the rear or side of the toilet 1, with the air inlet of the volute 4 facing the first heat exchanger 2, and the air outlet of the volute 4 connected to the outside. Specifically, the volute 4 can be directly extended to the outside, so that the air sucked by the fan 3 is directly discharged to the outside. The fan 3 is arranged in the volute 4, and the fan 3 is specifically an exhaust fan 3. Using an exhaust fan 3 instead of a blower fan 3 can discharge the air in the toilet to the outside, so as to discharge the odorous air in the toilet to the outside, and make the volatile part of the urine flow to the outside, and will not evaporate in large quantities into the air in the toilet, which can better solve the odor problem in the toilet.

[0054] Regarding the connection of the air outlet of the volute 4 to the outdoors, it should be noted that since the toilet of the present invention is mostly used in public places and there are multiple toilets, each equipped with a fan 3 and a volute 4, an exhaust duct leading to the outdoors can be provided in the toilet, so that the air outlets of the multiple volutes 4 are all connected to the exhaust duct, and the air in the volute 4 is discharged to the outdoors through the exhaust duct. This arrangement is more cost-effective and convenient for layout. This does not deviate from the basic principles of the present invention and will fall within the scope of protection of the present invention.

[0055] A ventilation hole is also provided at the bottom of the heat exchange unit. Its air inlet is located outside the toilet bowl 1 and is in air communication with the liquid permeable hole. A waterproof, breathable filter is placed between the two to prevent urine, feces, and other substances from entering the ventilation hole and potentially blocking it. The air inlet is connected to the ventilation hole, allowing the fan 3 to ventilate the ventilation hole. A windshield 7 is provided at the air inlet, which opens when the fan 3 is turned on. A mounting ring is provided at the air inlet, which is sealed to the volute 4. The two can also be integrally formed. The windshield 7 is hinged to the mounting ring and located on the side closest to the fan 3, allowing it to open only toward the fan 3 and not toward the first heat exchanger 2. Furthermore, the sealed connection between the mounting ring and the air inlet prevents urine, water, and other substances from entering the volute 4 and fan 3 through the air inlet. Furthermore, a motor is located within the volute 4 to drive the opening and closing of the windshield 7. The motor controls the air shield 7 to open only when the fan 3 is drawing air, allowing the air flowing through the heat exchange unit to flow into the volute 4. The air shield 7 is normally closed and opens only when cooling urine or drying the first heat exchanger 2. This prevents the air in the volute 4 from flowing back into the urinal. It also ensures that after the urine is cooled or the first heat exchanger 2 is dried, the air in the volute 4 does not flow back into the toilet.

[0056] To prevent urine from entering the volute 4 through the air inlet, the air inlet is specifically positioned above the urine and feces outlets, and a second filter 6 is disposed between the air inlet and the heat exchange unit. Air flowing through the heat exchange unit flows through the second filter 6 into the volute 4. The second filter 6 is specifically a waterproof and breathable mesh that allows air to pass but not liquid. Even if urine were to reach the second filter 6, it would not be able to pass through the second filter 6 and enter the air inlet, thus ensuring that the volute 4 is not contaminated, and that the volute 4 and the fan 3 are protected from contamination and corrosion.

[0057] The detection element is used to detect whether someone is in front of the toilet bowl 1. Specifically, the detection element is an infrared sensor. If the toilet is a sit-down toilet, it is installed on the top of the toilet bowl; if the toilet is a squat toilet, it can be installed on the wall. The detection element detects whether someone is in front of the toilet bowl 1 based on distance. Specifically, it can detect when someone enters the toilet bowl 1, as well as when someone leaves the toilet bowl 1. The infrared sensor has the same structure and principle as the infrared sensors used in urinals in the prior art, and its structure and principle are not described in detail in this invention.

[0058] When the detection part detects that there is someone in front of the toilet 1, specifically when it detects that someone is in front of the toilet 1, the first heat exchanger 2 is controlled to perform cooling, which can prepare for cooling urine and feces. When the person in front of the toilet 1 is using the toilet, the heat exchange part is already in a cooling state, which can immediately cool the urine and feces entering the toilet 1 to avoid volatilization into the air. It can reduce the odor in the toilet to a greater extent. Moreover, since cooling is performed after it is detected that someone is in front of the toilet 1, electricity can be saved. Since feces has almost no air permeability, the cooling effect on feces is much worse than that on urine. In fact, for toilets and squat toilets, the main cooling is also for urine. Although the effect on feces is poor, the part not covered by feces is breathable, which can also draw away the odor in the toilet and reduce the odor in the bathroom.

[0059] When it is detected that someone has left the toilet 1, the first heat exchanger 2 is activated to generate heat after a preset time to dry the toilet 1. After the person leaves, some urine will remain in the first heat exchanger 2 due to its relative humidity. If this evaporates, the odor in the toilet will increase. However, by drying the toilet and drawing air outward during the drying process, no urine will remain in the first heat exchanger 2 and the toilet 1, and no urine will evaporate into the room, thus ensuring that there is no odor in the room caused by urine. Since the toilet 1 will be flushed after the person leaves, drying is performed after a preset time; the preset time is set to 10 seconds, and in other embodiments, it can also be 12 seconds or 15 seconds, etc., depending on the flushing time of the toilet 1.

[0060] Example 3

[0061] like Figure 2 As shown, this embodiment discloses a sanitary system, which includes multiple toilets and outdoor units 10 according to the first or second embodiment.

[0062] The first heat exchangers 2 of multiple toilets are arranged in parallel, connected in parallel to an outdoor unit 10. The outdoor unit 10 is used to provide refrigerant to the first heat exchanger 2, enabling cooling or heating. The outdoor unit 10 is a multi-split air conditioner, specifically a multi-split air conditioner with a three-pipe heat recovery system. The gas side of the first heat exchanger 2 is connected to the high-pressure gas pipe via a high-pressure branch, and to the low-pressure gas pipe via a low-pressure branch. The high-pressure branch is equipped with a high-pressure gas pipe valve, and the low-pressure branch is equipped with a low-pressure gas pipe valve. The liquid side of the first heat exchanger 2 is connected to the liquid pipe via a liquid branch, and an electronic expansion valve is installed on the liquid branch.

[0063] Since a single outdoor unit 10 supplies multiple toilets, that is, a single outdoor unit 10 is connected to multiple first heat exchangers 2, it is similar to a multi-split air conditioning system; the difference is that toilets are used to replace indoor units. Since multiple toilets do not require cooling or heating at the same time, in most cases, some require cooling, some require heating and drying, and the remaining parts are in standby mode. The multi-split air conditioning system can specifically be a heat recovery system, which can keep the outdoor unit 10 in a heating state at all times. The switching between cooling and heating is achieved by switching the four-way valve, high-pressure air pipe valve, and low-pressure air pipe valve of the outdoor unit 10.

[0064] The sanitation system also includes a second heat exchanger 20, which is connected to the outdoor unit 10 and arranged in parallel with the first heat exchanger 2. The gas side of the second heat exchanger 20 is connected to the high-pressure gas pipe, and the liquid side is connected to the liquid pipe. An electronic expansion valve is provided between the liquid side and the liquid pipe. The second heat exchanger 20 is always in a heating state, used to heat the water in the water tank 30. Specifically, the water tank 30 can be connected to the floor heating pipeline for heating. Of course, the water in the water tank 30 can also be used for other purposes, such as supplying tap water to provide hot water in or near the public toilet.

[0065] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A toilet, characterized in that: include: Urinal (1); A first heat exchanger (2), at least a heat exchange portion of which is arranged in the toilet bowl (1), and the heat exchange portion is used to cool urine in the toilet bowl (1) and also to dry the toilet bowl (1).

2. The toilet according to claim 1, characterized in that The heat exchange portion is provided with a plurality of liquid permeable holes, through which the urine can flow, so that the first heat exchanger (2) cools the urine.

3. The toilet according to claim 2, characterized in that The toilet further comprises a fan (3), and the fan (3) is used to suck air from the first heat exchanger (2).

4. The toilet according to claim 3, characterized in that The toilet further comprises a volute (4), the fan (3) is arranged in the volute (4), the air inlet of the volute (4) faces the first heat exchanger (2), and the air outlet of the volute (4) is connected to the outside of the room.

5. The toilet according to claim 1, characterized in that The toilet further comprises a first filter (5) which is arranged on the upper surface of the heat exchange portion, and the urine flows to the heat exchange portion after being filtered by the first filter (5).

6. The toilet according to claim 4, characterized in that The air inlet is provided with a wind shield (7), and when the fan (3) is turned on, the wind shield (7) opens to allow the wind passing through the air inlet to enter the volute (4).

7. The toilet according to claim 6, characterized in that The toilet further comprises a second filter (6) which is arranged between the air inlet and the heat exchange part, and the air flowing through the heat exchange part flows into the volute (4) through the second filter (6).

8. The toilet according to claim 1, characterized in that The toilet also includes a detection member, which is used to detect whether there is someone in front of the toilet (1); When it is detected that there is a person in front of the toilet (1), the first heat exchanger (2) is controlled to perform cooling; When it is detected that a person has left the toilet (1), the first heat exchanger (2) is enabled to generate heat after a preset time to dry the toilet (1).

9. A sanitation system, characterized in that include: At least one toilet according to any one of claims 1 to 8; An outdoor unit (10) is connected to the first heat exchanger (2) and is used to provide refrigerant to the first heat exchanger (2) so as to enable the first heat exchanger (2) to cool or heat.

10. The sanitation system according to claim 9, characterized in that It also includes a second heat exchanger (20), which is arranged in parallel with the first heat exchanger (2) and connected to the outdoor unit (10); The second heat exchanger (20) is used to heat the water in the water tank (30).

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