Cold and hot water exchange module

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a cold and hot water exchange module which comprises a waterway board, a heat exchanger and a heating pipe, a cold water pipe, a hot water pipe and a warm water pipe are arranged on the waterway board, and the heat exchanger and the heating pipe are connected through three different water flow channels arranged on the waterway board. A silicone tube or a rubber tube is not needed for connection, the internal structure of the water dispenser is simplified, installation is convenient, and the problem of disordered connection is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and more specifically, to a cold and hot water exchange module. Background Art

[0002] Drinking tap water without boiling it directly may cause bacteria and other microorganisms to enter the human body and cause disease infection. Boiling tap water can not only complete disinfection and sterilization but also improve the taste. However, tap water is too hot to drink directly after boiling. Current smart water dispensers are often equipped with heat exchange modules to provide drinking water at different temperatures, which improves people's quality of life. However, smart water dispensers usually use silicone tubes or plastic tubes to connect the water channels. This connection method is relatively confusing, prone to misinstallation and mixing, and the installation process is complicated. Utility Model Content

[0003] The purpose of the utility model is to solve the problems of confusing connections and complicated assembly caused by the use of connecting pipes to connect the cold and hot water exchange water circuits. A cold and hot water exchange module is provided, which connects the heat exchanger and the heating pipe through a water circuit plate, can output boiling water and warm water at the same time, simplifies the connection structure, reduces the occupied space, and is easy to install inside the smart water dispenser.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] Provided is a hot and cold water exchange module, comprising a waterway plate, a heat exchanger and a heating pipe, wherein the heat exchanger and the heating pipe are both mounted on the waterway plate; a cold water pipe, a hot water pipe and a warm water pipe are arranged on the waterway plate, wherein the cold water pipe comprises a cold water pipe inlet and a cold water pipe outlet which are connected, wherein the hot water pipe comprises a hot water pipe inlet, a first hot water pipe outlet and a second hot water pipe outlet which are connected, wherein the warm water pipe comprises a warm water pipe inlet and a warm water pipe outlet which are connected; wherein the heat exchanger is provided with a cold water inlet, a cold water outlet, a hot water inlet and a warm water outlet, wherein the cold water inlet and the cold water outlet are connected via a cold water exchange pipe, wherein the hot water inlet and the warm water outlet are connected via a cold water exchange pipe The outer wall of the cold water exchange pipe is connected by a hot water exchange pipe, and the outer wall of the cold water exchange pipe is in contact with the outer wall of the hot water exchange pipe; the heating pipe includes a heating pipe inlet and a heating pipe outlet which are connected; cold water enters the cold water pipe from the cold water pipe inlet, and the cold water pipe outlet, the cold water inlet, the cold water outlet, and the heating pipe inlet are connected, and cold water enters the heating pipe from the heating pipe inlet, and the heating pipe outlet, the hot water pipe inlet, the first hot water pipe outlet, and the second hot water pipe outlet are connected, and hot water flows out from the first hot water pipe outlet and the second hot water pipe outlet, and the second hot water pipe outlet, the hot water inlet, the warm water outlet, and the warm water pipe inlet are connected, and warm water flows out from the warm water pipe outlet.

[0006] The cold and hot water exchange module of the utility model adopts a water circuit plate to connect the heat exchanger and the heating pipe. During operation, cold water flows from the cold water pipe inlet into the cold water pipe of the water circuit plate, flows along the cold water pipe to the cold water pipe outlet, and then enters the inside of the heat exchanger from the cold water inlet of the heat exchanger. The cold water flows along the cold water exchange pipe, then flows out from the cold water outlet of the heat exchanger, enters the heating pipe, is heated to the boiling point temperature in the heating pipe, and the boiled hot water flows out from the heating pipe outlet and flows into the hot water pipe of the water circuit plate. A first hot water pipe outlet and a second hot water pipe outlet are provided in the hot water pipe. A part of the hot water flows directly out from the first hot water pipe outlet to provide boiling water for users to brew coffee beans, tea leaves, etc., and another part of the hot water flows out from the second hot water pipe outlet and enters the hot water exchange pipe through the hot water inlet. In the heat exchanger, the outer walls of the cold water exchange pipe and the hot water exchange pipe are in contact with each other, and heat exchange occurs between the hot water and the cold water, thereby reducing the temperature of the hot water and turning it into warm water, which then flows out from the warm water outlet of the heat exchanger, flows into the warm water pipe of the waterway plate through the warm water pipe inlet, and finally flows out from the warm water pipe outlet to provide users with warm water that can be directly drunk. The hot and cold water exchange module of the utility model replaces the connecting pipes in the traditional water dispenser by setting a waterway plate. The waterway plate is provided with fixed cold water pipes, hot water pipes and warm water pipes. The waterway structure is simple, occupies a small volume, and is easy to assemble. When installed inside the smart water dispenser, there is no need to manually connect the pipes, avoiding the problems of connection confusion, wrong installation, and missing installation. In addition, the heat exchanger and the heating pipe are connected through the waterway plate, which can provide users with boiling water and warm water that can be directly drunk at the same time.

[0007] Furthermore, the waterway plate includes a waterway plate base, a waterway plate cover and a waterway plate bracket connected in sequence, the waterway plate base is connected to the waterway plate cover, and the waterway plate cover is connected to the waterway plate bracket. The waterway plate base, waterway plate cover and waterway plate bracket connected by threaded or welded connection replace the traditional PP pipe and PE pipe connection method, the assembly method is simple and the structure is compact, saving space.

[0008] Furthermore, the waterway base is provided with a first connection part connected to the heat exchanger, and a second connection part connected to the waterway cover, the waterway base and the waterway cover are both provided with a first mounting structure for mounting a water temperature regulating assembly, the waterway cover is provided with a third connection part connected to a heating pipe, the waterway bracket is provided with a fourth connection part connected to the waterway cover, and a second mounting structure for mounting a water pump assembly. The first connection part, the second connection part, the third connection part, the fourth connection part, the first mounting structure, and the second mounting structure can all be connected by screws or ultrasonic welding, and the connection is firm and reliable, and the required connection parts are few, the overall volume is small, and it is easy to install inside the water dispenser.

[0009] Furthermore, the waterway base is provided with a first cold water cavity, a first hot water cavity and a first warm water cavity; the waterway cover is provided with a second cold water cavity, a second hot water cavity and a second warm water cavity; the first cold water cavity and the second cold water cavity surround the cold water pipe, the first hot water cavity and the second hot water cavity surround the hot water pipe, and the first warm water cavity and the second warm water cavity surround the warm water pipe. Grooves are respectively provided on the waterway base and the waterway cover to form a cavity for water flow, and after assembly, a cold water pipe, a hot water pipe and a warm water pipe are formed, which reduces the process difficulty and processing cost compared to directly setting water flow pipes on the waterway.

[0010] Furthermore, the cold water pipe, the hot water pipe and the warm water pipe are respectively provided with a first sealing ring, a second sealing ring and a third sealing ring. The first sealing ring, the second sealing ring and the third sealing ring can be fixed in the corresponding pipe by ultrasonic welding, which can increase the sealing performance of the pipe and prevent water from leaking out of the pipe.

[0011] Furthermore, the water flow direction in the cold water pipe is opposite to that in the hot water pipe. The water flow direction in the cold water pipe is opposite to that in the hot water pipe, which can improve the heat exchange efficiency between cold water and hot water in the heat exchanger and reduce the cooling time.

[0012] Furthermore, the cold water inlet, hot water inlet and warm water outlet of the heat exchanger are all provided with joint sealing rings. Sealing rings are provided at the cold water inlet, hot water inlet and warm water outlet where the heat exchanger is connected to the waterway plate, which can improve the air tightness of the connection and prevent water leakage at the connection.

[0013] Furthermore, the first mounting structure is connected with a water pump assembly, the water pump assembly includes a water pump, a water inlet pipe and a water outlet pipe, the water inlet pipe is connected with the water outlet pipe and is arranged on the water pump, the water inlet pipe is connected with the cold water outlet, and the water outlet pipe is connected with the heating pipe inlet. The water pump assembly is arranged on the waterway plate to connect the heat exchanger and the heating pipe, which can increase the water flow pressure and water flow velocity in the pipeline, thereby improving the working efficiency of the cold and hot water exchange module.

[0014] Furthermore, the second mounting structure is connected with a water temperature regulating component, and the water temperature regulating component includes a regulating cavity, a first inlet, a second inlet, a first outlet and a second outlet, wherein the first inlet, the second inlet, the first outlet and the second outlet are all connected and arranged on the regulating cavity, the first inlet is connected to the first hot water pipe outlet, and the second inlet is connected to the warm water pipe outlet. A water temperature regulating component is arranged on the top of the waterway plate, and when a user needs boiling water, boiling water can flow in from the first inlet and directly flow out through the first outlet; when a user needs warm water that can be directly drunk, boiling water can be discharged from the second outlet, and warm water flows into the water temperature regulating component from the second inlet and flows out from the first outlet to provide warm water for the user.

[0015] Furthermore, the water temperature regulating component is provided with a temperature sensor and a solenoid valve for controlling the switch states of the first inlet, the second inlet, the first outlet and the second outlet. The temperature sensor is arranged in the regulating cavity, and the temperature sensor is connected to the solenoid valve. When the user needs boiling water, the solenoid valve opens the first inlet and closes the second inlet; when the user needs warm water, the solenoid valve opens both the first inlet and the second inlet. The temperature sensor can monitor the water temperature in the regulating cavity in real time. When the water temperature reaches the temperature required by the user, the solenoid valve is controlled to close the second outlet and open the first outlet to provide water reaching the specified temperature; when the water temperature has not yet reached the temperature specified by the user, the temperature sensor controls the solenoid valve to open the second outlet and close the first outlet to discharge the water that has not reached the specified temperature, thereby realizing automatic control of the water temperature.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The hot and cold water exchange module of the utility model uses a water circuit board instead of a connecting pipe, and there is no complicated pipe connection, which not only simplifies the internal structure of the water dispenser, but also makes it less likely to have misinstallation due to confusion in the connection, and is easy to install; a heat exchanger, a water pump, and a water temperature regulating component are installed on the water circuit board. The overall structure is compact and firm, the heat exchange efficiency is high, and water flows of different temperatures can be provided according to user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the water flow direction of the hot and cold water exchange module of the utility model;

[0019] Figure 2 Assembly drawing of waterway plate base and waterway plate cover;

[0020] Figure 3 This is a schematic diagram of the waterway plate base structure;

[0021] Figure 4 It is a schematic diagram of the waterway plate cover structure;

[0022] Figure 5 This is a schematic diagram of the waterway plate bracket structure;

[0023] Figure 6 This is an assembly diagram of a hot and cold water exchange module in the second embodiment of the present utility model;

[0024] Figure 7 It is a schematic diagram of the structure of the water temperature regulating component;

[0025] Figure 8 This is an exploded view of the hot and cold water exchange module in the third embodiment of the present utility model;

[0026] In the attached drawings: 1, waterway board; 11, cold water pipe; 12, hot water pipe; 121, hot water pipe inlet; 122, first hot water pipe outlet; 123, second hot water pipe outlet; 13, warm water pipe; 14, waterway board base; 141, first connecting part; 142, second connecting part; 143, first mounting structure; 144, first cold water chamber; 145, first hot water chamber; 146, first warm water chamber; 15, waterway board cover; 151, third connecting part; 152, second cold water chamber; 153, second hot water chamber; 154, second warm water chamber; 1 6. Waterway plate bracket; 161. Fourth connecting part; 162. Second mounting structure; 17. First sealing ring; 18. Second sealing ring; 19. Third sealing ring; 2. Heat exchanger; 21. Cold water inlet; 22. Cold water outlet; 23. Hot water inlet; 24. Warm water outlet; 25. Joint sealing ring; 3. Heating pipe; 4. Water pump assembly; 41. Water pump; 42. Water inlet pipe; 43. Water outlet pipe; 5. Water temperature adjustment assembly; 51. Adjustment cavity; 52. First inlet; 53. Second inlet; 54. First outlet; 55. Second outlet. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] like Figures 1 to 5As shown, the hot and cold water exchange module of the utility model includes a waterway plate 1, a heat exchanger 2 and a heating pipe 3, and the heat exchanger 2 and the heating pipe 3 are both installed on the waterway plate 1; a cold water pipe 11, a hot water pipe 12 and a warm water pipe 13 are arranged on the waterway plate 1, the cold water pipe 11 includes a cold water pipe inlet and a cold water pipe outlet arranged in communication, the hot water pipe 12 includes a hot water pipe inlet 121, a first hot water pipe outlet 122 and a second hot water pipe outlet 123 arranged in communication, and the warm water pipe 13 includes a warm water pipe inlet and a warm water pipe outlet arranged in communication; a cold water inlet 21, a cold water outlet 22, a hot water inlet 23 and a warm water outlet 24 are arranged on the heat exchanger 2, the cold water inlet 21 and the cold water outlet 22 are connected through a cold water exchange pipe, and the hot water inlet 23 and the warm water outlet 24 is connected through a hot water exchange pipe, and the outer wall of the cold water exchange pipe contacts the outer wall of the hot water exchange pipe; the heating pipe 3 includes a heating pipe 3 inlet and a heating pipe 3 outlet which are connected; cold water enters the cold water pipe 11 from the cold water pipe 11 inlet, and the cold water pipe 11 outlet, the cold water inlet 21, the cold water outlet 22, and the heating pipe 3 inlet are connected, and cold water enters the heating pipe 3 from the heating pipe 3 inlet, and the heating pipe 3 outlet, the hot water pipe inlet 121, the first hot water pipe outlet 122, and the second hot water pipe outlet 123 are connected, and hot water flows out from the first hot water pipe outlet 122 and the second hot water pipe outlet 123, and the second hot water pipe outlet 12, the hot water inlet 23, the warm water outlet 24, and the warm water pipe 13 inlet are connected, and the warm water flows out from the warm water pipe 13 outlet. The cold and hot water exchange module of the utility model can be installed inside the intelligent water dispenser to provide boiling water and directly drinkable warm water at the same time.

[0031] like Figure 1As shown, external cold water is input into the waterway plate 1 from the inlet of the cold water pipe 11, flows along the cold water pipe 11 to the outlet of the cold water pipe 11, is input into the heat exchanger 2 from the cold water inlet 21 on the heat exchanger 2, passes through the cold water exchange pipe of the heat exchanger 2, flows out from the cold water outlet 22 on the heat exchanger 2, and then enters the heating tube 3. The heating tube 3 continuously heats the internal water flow to boiling, and the boiled hot water flows into the hot water pipe 12 in the waterway plate 1 from the hot water pipe inlet 12. A first hot water pipe outlet 122 and a second hot water pipe outlet 123 are provided in the hot water pipe 12. The water flow is divided into two water paths in the hot water pipe 12. One water path flows out directly through the first hot water pipe outlet 122 to provide boiling water to users for brewing instant granules, tea, etc.; the other water path flows into the heat exchanger 2 from the hot water inlet 23 through the second hot water pipe outlet 123. The hot water enters the hot water exchange pipe in the heat exchanger 2. The cold water exchange pipe and the hot water exchange pipe are in contact with each other, and there is a temperature difference between them. The hot water and the cold water exchange heat, and the temperature of the hot water decreases to become warm water. The warm water flows out of the heat exchanger 2 from the warm water outlet 24. After the warm water flows out of the heat exchanger 2, it flows into the warm water pipe 13 in the waterway plate 1 through the inlet of the warm water pipe 13, and finally flows out from the outlet of the warm water pipe 13 to provide users with warm water that can be directly drunk. The heat exchanger 2 and the heating pipe 3 are connected through the waterway plate 1, and there is no need to use a connecting pipe to connect the various components in the water dispenser, which simplifies the internal waterway structure and facilitates installation. At the same time, metal materials are used to make the waterway plates, which have reliable strength and stable connections, and will not cause problems such as leakage and odor caused by aging of silicone tubes and plastic tubes.

[0032] like Figure 3 , Figure 4 , Figure 5 As shown, the waterway plate 1 includes a waterway plate base 14, a waterway plate cover 15 and a waterway plate bracket 16 which are connected in sequence. The waterway plate base 14 and the waterway plate cover 15, as well as the waterway plate cover 15 and the waterway plate bracket 16 can be connected by screws. When the screw connection is adopted, a first connection part 141 connected to the heat exchanger 2 and a second connection part 142 connected to the waterway plate cover 15 are provided on the waterway plate base 14, a third connection part 151 connected to the heating pipe 3 is provided on the waterway plate cover 15, and a fourth connection part 161 connected to the waterway plate cover 15 is provided on the waterway plate bracket 16. The use of screws to connect the various components of the waterway plate 1 is firm and reliable, with high connection strength, avoiding the problems of wrong installation and connection confusion when connecting the pipelines, and at the same time, it occupies a small space and is suitable for installation inside the water dispenser.

[0033] Ultrasonic welding can also be used to connect the waterway plate base 14 and the waterway plate cover 15, as well as the waterway plate cover 15 and the waterway plate bracket 16. Ultrasonic welding has fast speed, high welding strength, good sealing and low cost. It is clean and pollution-free and will not damage the main body of the waterway plate 1. It is very suitable for connecting the various components of the waterway plate 1.

[0034] like Figure 3 , Figure 4 As shown, the waterway base 14 is provided with a first cold water cavity 144, a first hot water cavity 145 and a first warm water cavity 146; the waterway cover 15 is provided with a second cold water cavity 152, a second hot water cavity 153 and a second warm water cavity 154; the first cold water cavity 144 and the second cold water cavity 152 surround a cold water pipe 11, the first hot water cavity 145 and the second hot water cavity 153 surround a hot water pipe 12, and the first warm water cavity 146 and the second warm water cavity 154 surround a warm water pipe 13. The waterway base 14 and the waterway cover 15 are respectively provided with cavities for accommodating water flow, and after assembly, three waterways for smooth flow of water, namely the cold water pipe 11, the hot water pipe 12 and the warm water pipe 13, are formed. Compared with directly providing a complete pipeline on the waterway base 14 or the waterway cover 15, the process is simpler, the required parts can be produced by stamping, and demoulding is easy, thereby reducing production costs and improving production efficiency.

[0035] The first sealing ring 17, the second sealing ring 18 and the third sealing ring 19 are respectively arranged in the cold water pipe 11, the hot water pipe 12 and the warm water pipe 13. The cold water inlet 21, the hot water inlet 23 and the warm water outlet 24 of the heat exchanger 2 are all provided with joint sealing rings 25. The sealing ring material can be selected from rubber, silicone or polytetrafluoroethylene according to different application occasions. The main characteristics of the rubber sealing ring are softness, wear resistance, corrosion resistance, and easy processing into different shapes and sizes. Common rubber materials include nitrile rubber, fluororubber, silicone rubber, etc. They can be used for a long time in different temperature ranges, but their respective applicable temperature ranges and chemical corrosion resistance are different. Silicone sealing ring is a high-temperature and durable sealing ring material that can be used in different temperature ranges and has excellent properties such as high temperature resistance, radiation resistance, oxidation resistance, acid and alkali corrosion resistance and electrical insulation. Compared with rubber materials, silicone sealing rings can be used for a long time in a higher temperature range and can maintain their sealing performance in harsh environments. Polytetrafluoroethylene (PTFE) is also one of the commonly used sealing ring materials. It has the characteristics of non-stickiness, low friction coefficient, high chemical stability, and corrosion resistance, which ensures the stability and reliability of direct drinking water equipment.

[0036] In this embodiment, the heat exchanger 2 and the heating pipe 3 are respectively installed on both sides of the waterway plate 1, wherein the hot water inlet 23 and the cold water outlet 22 of the heat exchanger 2 are arranged below the heat exchanger 2 and maintain the same horizontal height; the cold water inlet 21 and the warm water outlet 24 are arranged at the same horizontal height above the heat exchanger 2. The water flow direction of the cold water pipe 11 in the waterway plate 1 is opposite to that of the hot water pipe 12. Cold water flows into the cold water exchange pipe from the cold water inlet 21 above the heat exchanger 2 and flows out from the cold water outlet 22 below; hot water flows into the hot water exchange pipe from the hot water inlet 23 below the heat exchanger 2. After heat exchange occurs in the heat exchanger 2, the temperature is reduced to warm water and flows out from the warm water outlet 24 above. The flow direction of cold water in the heat exchanger 2 is opposite to that of hot water, which improves the overall heat exchange efficiency and speeds up the cooling speed.

[0037] Embodiment 2

[0038] like Figure 6 As shown, this embodiment is similar to the first embodiment, except that a water pump assembly 4 is further provided on the waterway plate 1 of this embodiment. The water pump assembly 4 includes a water pump 41, a water inlet pipe 42 and a water outlet pipe 43. The water inlet pipe 42 and the water outlet pipe 43 are both connected and arranged on the water pump assembly. The water inlet pipe 42 is connected to the cold water outlet 22 on the heat exchanger 2, and the water outlet pipe 43 is connected to the inlet of the heating pipe 3. The cold water in the heat exchanger 2 flows into the water pump 41 from the water inlet pipe 42, flows out from the water outlet pipe 43, and enters the interior of the heating pipe 3 for heating. The water pump 41 can be a micro DC centrifugal pump. When used in an intelligent water dispenser, only a head of 3m-5m is required to meet the use requirements. The material of the water pump 41 should be food-grade high temperature resistant material, and the water pump should remain silent during operation. The water pump 41 can increase the hydraulic pressure, provide sufficient power for the flow of water in the subsequent stroke, the water flow speed after pressurization is fast, the heat exchange efficiency in the heat exchanger 2 is improved, and the overall response speed of the device is faster.

[0039] Embodiment 3

[0040] like Figure 7 , Figure 8As shown, this embodiment is similar to the second embodiment, except that the waterway plate 1 of this embodiment is connected to the water temperature regulating assembly 5. The water temperature regulating assembly 5 includes a regulating cavity 51, a first inlet 52, a second inlet 53, a first outlet 54 and a second outlet 55. The first inlet 52, the second inlet 53, the first outlet 54 and the second outlet 55 are all connected and arranged on the regulating cavity 51. The first inlet 52 is connected to the outlet of the first hot water pipe 12, and the second inlet 53 is connected to the outlet of the warm water pipe 13. The water temperature regulating assembly 5 is provided with a temperature sensor and a solenoid valve for controlling the switch state of the first inlet 52, the second inlet 53, the first outlet 54 and the second outlet 55. The temperature sensor is arranged in the regulating cavity 51, and the temperature sensor is connected to the solenoid valve. When the user needs boiling water, the solenoid valve controls the first inlet 52 to open and the second inlet 53 to close, and the boiling water boiled by the heating tube 3 enters the hot water pipe 12 of the water circuit board 1, and flows into the first inlet 52 from the first hot water pipe 12 outlet of the hot water pipe 12. After the temperature sensor detects that the water temperature inside the regulating cavity 51 exceeds 95°C, the first outlet 54 is controlled to open and the second outlet 55 is controlled to close, and the water flows out from the first outlet 54; when it is detected that the water temperature has not reached 95°C, the first outlet 54 is controlled to close and the second outlet 55 is controlled to open, and the water that does not meet the temperature requirement flows out from the second outlet 55. When the user needs warm water of a specific temperature, the solenoid valve opens the first inlet 52 and the second inlet 53 at the same time, and the hot water in the outlet of the first hot water pipe 12 flows into the regulating cavity 51 from the first inlet 52, and the warm water at the outlet of the warm water pipe 13 flows into the regulating cavity 51 from the second inlet 53. The water flows are mixed in the regulating cavity 51. When the temperature of the water flow in the regulating cavity 51 has not reached the temperature specified by the user, the temperature sensor controls the solenoid valve to close the first outlet 54 and open the second outlet 55 to discharge the water flow inside the regulating cavity 51. When the temperature of the water flow in the regulating cavity 51 reaches the specified temperature, the temperature sensor opens the first outlet 54 and closes the second outlet 55 to provide warm water of the specified temperature to the user. This embodiment is intelligent and efficient, with a small structure and volume, and can be set inside an intelligent water dispenser to provide boiling water and warm water of the user-specified temperature at the same time.

[0041] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A hot and cold water exchange module, characterized in that: The invention comprises a water circuit board (1), a heat exchanger (2) and a heating pipe (3), wherein the heat exchanger (2) and the heating pipe (3) are both mounted on the water circuit board (1); the water circuit board (1) is provided with a cold water pipe (11), a hot water pipe (12) and a warm water pipe (13); the cold water pipe (11) comprises a cold water pipe (11) inlet and a cold water pipe (11) outlet which are arranged in communication with each other; the hot water pipe (12) comprises a hot water pipe inlet (121), a first hot water pipe outlet (122) and a second hot water pipe outlet (123) which are arranged in communication with each other; the warm water pipe (13) comprises a warm water pipe (13) inlet and a warm water pipe (13) outlet which are arranged in communication with each other; the heat exchanger (2) is provided with a cold water inlet (21), a cold water outlet (22), a hot water inlet (23) and a warm water outlet (24); the cold water inlet (21) and the cold water outlet (22) are connected via a cold water exchange pipe, and the hot water inlet (23) and the warm water outlet (24) are connected via a hot water exchange pipe. The outlet (24) is connected via a hot water exchange pipe, and the outer wall of the cold water exchange pipe contacts the outer wall of the hot water exchange pipe; the heating pipe (3) comprises a heating pipe (3) inlet and a heating pipe (3) outlet which are connected; cold water enters the cold water pipe (11) from the cold water pipe (11) inlet, the cold water pipe (11) outlet, the cold water inlet (21), the cold water outlet (22) and the heating pipe (3) inlet are connected, cold water enters the heating pipe (3) from the heating pipe (3) inlet, the heating pipe (3) outlet, the hot water pipe inlet (121), the first hot water pipe outlet (122) and the second hot water pipe outlet (123) are connected, hot water flows out from the first hot water pipe outlet (122) and the second hot water pipe outlet (123), the second hot water pipe outlet (123), the hot water inlet (23), the warm water outlet (24) and the warm water pipe (13) inlet are connected, and warm water flows out from the warm water pipe (13) outlet.

2. The hot and cold water exchange module according to claim 1, characterized in that: The waterway plate (1) comprises a waterway plate base (14), a waterway plate cover (15) and a waterway plate bracket (16) which are connected in sequence; the waterway plate base (14) is connected to the waterway plate cover (15), and the waterway plate cover (15) is connected to the waterway plate bracket (16).

3. The hot and cold water exchange module according to claim 2, characterized in that: The waterway plate base (14) is provided with a first connection portion (141) connected to the heat exchanger (2), and a second connection portion (142) connected to the waterway plate cover (15); the waterway plate base (14) and the waterway plate cover (15) are both provided with a first mounting structure (143) for mounting a water temperature regulating component; the waterway plate cover (15) is provided with a third connection portion (151) connected to the heating pipe (3); the waterway plate bracket (16) is provided with a fourth connection portion (161) connected to the waterway plate cover (15) and a second mounting structure (162) for mounting a water pump component.

4. The hot and cold water exchange module according to claim 2, characterized in that: The waterway plate base (14) is provided with a first cold water chamber (144), a first hot water chamber (145) and a first warm water chamber (146); the waterway plate cover (15) is provided with a second cold water chamber (152), a second hot water chamber (153) and a second warm water chamber (154); the first cold water chamber (144) and the second cold water chamber (152) surround the cold water pipe (11), the first hot water chamber (145) and the second hot water chamber (153) surround the hot water pipe (12), and the first warm water chamber (146) and the second warm water chamber (154) surround the warm water pipe (13).

5. The hot and cold water exchange module according to claim 4, characterized in that: The cold water pipe (11), the hot water pipe (12) and the warm water pipe (13) are respectively provided with a first sealing ring (17), a second sealing ring (18) and a third sealing ring (19).

6. The hot and cold water exchange module according to any one of claims 1 to 5, characterized in that: The cold water inlet (21), the hot water inlet (23) and the warm water outlet (24) of the heat exchanger (2) are all provided with joint sealing rings (25).

7. The hot and cold water exchange module according to any one of claims 1 to 5, characterized in that: The water flow direction in the cold water pipe (11) is opposite to the water flow direction in the hot water pipe (12).

8. The hot and cold water exchange module according to claim 3, characterized in that: The second mounting structure (162) is connected to a water pump assembly (4), and the water pump assembly (4) includes a water pump (41), a water inlet pipe (42) and a water outlet pipe (43). The water inlet pipe (42) is connected to the water outlet pipe (43) and is arranged on the water pump (41). The water inlet pipe (42) is connected to the cold water outlet (22), and the water outlet pipe (43) is connected to the inlet of the heating pipe (3).

9. The hot and cold water exchange module according to claim 3, characterized in that: The first mounting structure (143) is connected to a water temperature regulating component (5), and the water temperature regulating component (5) comprises a regulating cavity (51), a first inlet (52), a second inlet (53), a first outlet (54) and a second outlet (55), wherein the first inlet (52), the second inlet (53), the first outlet (54) and the second outlet (55) are all connected and arranged on the regulating cavity (51), the first inlet (52) is connected to a first hot water pipe outlet (122), and the second inlet (53) is connected to a warm water pipe (13) outlet.

10. The hot and cold water exchange module according to claim 9, characterized in that: The water temperature regulating component (5) is provided with a temperature sensor and a solenoid valve for controlling the switching states of the first inlet (52), the second inlet (53), the first outlet (54) and the second outlet (55); the temperature sensor is arranged in the regulating cavity (51) and is connected to the solenoid valve.

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