Water supply device

Abstract

The invention discloses a water supply device which comprises a shell and an equipment body arranged in the shell, the equipment body comprises a mounting frame, a first tank arranged on the mounting frame and used for containing a heat exchange medium, and a heat exchanger arranged on the mounting frame and used for conducting heat exchange on drinking water and the heat exchange medium. A water path plate is further arranged in the shell, and a water path structure communicated with the heat exchanger and the first tank is further arranged on the water path plate. In the application, the heat exchange medium in the first tank exchanges heat with the drinking water in the heat exchanger to preheat the drinking water, so that the heating pressure of the heater is reduced, and a large amount of drinking water with proper temperature is quickly provided for a user; in addition, the components are compact in arrangement and reasonable in layout, can be well integrated into a whole to form the water drinking main machine, is convenient to assemble, and enables the size of the whole machine to be smaller.

Description

Technical Field

[0001] The present application relates to the technical field of drinking water equipment, and in particular to a water supply device. Background Art

[0002] In the field of drinking water equipment, a water supply device generally includes a housing, a first tank for storing hot water in the housing, a heater in the first tank, a main control circuit board, a bracket and other components, and its main function is to heat water. The current water supply device has the following problems: the internal structure is complex and the layout is unreasonable, resulting in a large size of the entire device, and the device takes a long time to heat up and consumes a lot of power. Summary of the invention

[0003] In view of this, the present application provides a water supply device to solve the technical problems of the existing drinking water equipment, such as long heating time, high power consumption, unreasonable internal layout and large overall size.

[0004] In order to achieve one or part or all of the above-mentioned purposes or other purposes, the present application proposes a water supply device, including a shell and an equipment body arranged in the shell, the equipment body includes a mounting frame, a first tank arranged on the mounting frame and used to accommodate a heat exchange medium, and a heat exchanger arranged on the mounting frame and used to exchange heat between drinking water and the heat exchange medium. A waterway plate is also provided in the shell, and a waterway structure that connects the heat exchanger and the first tank respectively is also provided on the waterway plate.

[0005] Preferably, the water supply device also includes a heater connected to the heat exchanger and used to reheat the drinking water after heat exchange; the heat exchanger has a drinking water channel and a heat exchange medium channel isolated from each other, the two ends of the drinking water channel are respectively connected to the water plate and the heater, the two ends of the heat exchange medium channel are respectively connected to the first tank through heat exchange medium pipelines, and the first tank is provided with a circulation pump for allowing the heat exchange medium to flow through the heat exchange medium channel and then enter the first tank.

[0006] The circulation pump in the hot tank provides power for the flow of the heat exchange medium, which drives the heat exchange medium in the hot tank to flow into the heat exchange medium channel. When the heat exchange medium (hot water in this embodiment) flows in the heat exchange medium channel, the heat exchange medium exchanges heat with the drinking water in the drinking water channel to heat the drinking water. After the temperature of the heat exchange medium decreases, it returns to the hot tank through the heat exchange medium channel to be heated by the heating device, and circulates between the hot tank and the heat exchange medium channel of the heat exchanger driven by the circulation pump to ensure that the heat exchange medium in the heat exchange medium channel of the heat exchanger always maintains a high temperature. After the water in the drinking water channel is heated by the heat exchange medium of the heat exchange medium channel once, the time required for the heater to reheat the drinking water to reach the set temperature is shorter (or the power required is smaller) when the water is discharged. The user can release hot water of the set temperature by turning on the faucet, achieving the effect of instant hot water.

[0007] Preferably, the heat exchanger includes a plurality of heat exchange baffles, which are arranged in sequence along the first direction, and the drinking water channels or heat exchange medium channels are formed between adjacent heat exchange baffles, and the drinking water channels and heat exchange medium channels are arranged alternately in sequence. In this way, along the first direction, heat exchange medium channels are arranged on both sides of the drinking water channel, and the heat exchange medium channels on both sides heat the water flow in the drinking water channel at the same time, which greatly improves the efficiency of water flow heating, enables the water flow to reach the specified temperature faster, and saves heating time.

[0008] Preferably, the first tank is a hot tank, and the water channel plate is further provided with a water supply channel for supplying water to the first tank. The water supply channel is connected to the hot tank and is used to supply the hot tank with water lost due to evaporation.

[0009] Preferably, the water supply device further comprises a second tank, which is a cold tank, and the second tank is arranged on the mounting frame and is connected to the water supply waterway. The cold tank is connected to the water supply waterway of the waterway plate, and the water supply waterway is connected to the water inlet channel on the waterway plate. When the user needs cold water, the water entering from the water inlet directly enters the cold tank for cooling and then flows out directly, so that the user can quickly obtain cold water. In this way, the addition of the cold tank provides the user with the option of ice water, which increases the convenience of water use.

[0010] Preferably, a water replenishment bridge waterway is provided between the second tank and the first tank, and the water replenishment bridge waterway is provided with a one-way valve or an electrically controlled valve. The one-way valve or the electrically controlled valve controls the replenishment water flow to flow only from the cold tank to the hot tank, but not from the hot tank to the cold tank in the reverse direction. Specifically, in actual application, water entering from the water inlet of the waterway plate enters the water replenishment waterway, first filling the cold tank, and when the cold tank is fully replenished, the water flow can replenish the hot tank through the one-way valve or the control valve to replenish the water lost in the hot tank due to evaporation.

[0011] Preferably, the heat exchanger is a plate heat exchanger and is fixed to one side of the mounting frame, the heater is a thick film heater and is arranged adjacent to the plate heat exchanger, and the thick film heater is fixed to the mounting frame.

[0012] Preferably, the water supply device is provided with a connector or a connecting line for connecting to the water purifier, and is used for electrical connection or signal connection with the water purifier.

[0013] Preferably, the hot tank comprises a hot tank body for storing a heat exchange medium and a heating device arranged in the hot tank body for heating the heat exchange medium, and the heating device is arranged close to the bottom of the hot tank body.

[0014] Preferably, a side panel of the housing can be opened / closed relative to the housing, and a sliding fit structure is provided between the device body and the housing so that the device body can be pushed into or pulled out of the housing from the side panel.

[0015] Beneficial effects of the present invention:

[0016] In the present application, a heat exchanger and a first tank are arranged in the main body of the equipment. The heat exchange medium in the first tank is used to exchange heat with the drinking water in the heat exchanger to preheat the drinking water, thereby reducing the heating pressure of the heater. When drinking water at a higher temperature is needed, the heater is used for secondary heating. When drinking water at a higher temperature is not needed, the drinking water after heat exchange can be directly released, thereby providing users with drinking water of appropriate temperature quickly and in large quantities. Moreover, the above-mentioned components are compactly arranged and reasonably laid out, and can be well integrated into a drinking water main unit, which is convenient for assembly and makes the whole machine smaller.

[0017] Other advantages, objectives and features of the present application will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present application. The objectives and other advantages of the present application can be achieved and obtained through the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] in:

[0020] Figure 1 It is a schematic diagram of the overall structure of the water supply device in an embodiment of the present invention;

[0021] Figure 2 It is an exploded schematic diagram of the housing and the device body in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the device body observed from another angle in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the waterway plate in an embodiment of the present invention;

[0024] Figure 5 The structure of the heat exchanger in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 6 It is a schematic diagram of a heat exchanger observed from another angle in an embodiment of the present invention;

[0026] Figure 7 This is an exploded schematic diagram of a first tank in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of a water supply device in an embodiment of the present invention;

[0028] Fig. 9 is a top view of a waterway plate provided by an embodiment of the present invention;

[0029] Fig.10 is a structural schematic diagram of a waterway plate provided by an embodiment of the present invention from another viewing angle;

[0030] Fig.11 It is a structural schematic diagram of a waterway plate provided by an embodiment of the present invention after the valve body is removed from one viewing angle;

[0031] Fig.12 It is a top view of the waterway plate provided by an embodiment of the present invention with the valve body removed.

[0032] in,

[0033] 10- housing;

[0034] 20-Mounting frame;

[0035] 30-first tank; 31-hot tank body; 32-heating device; 33-circulating pump;

[0036] 40-heat exchanger; 41-drinking water channel; 42-heat exchange medium channel; 43-heat exchange baffle;

[0037] 50-heater;

[0038] 60-waterway plate; 61-water inlet; 62-water inlet pipe; 63-water output port; 64-water outlet; 65-return pipe port; 66-wastewater outlet; 67-water supply waterway;

[0039] 70- insulation frame;

[0040] 80-second tank; 81-water replenishment bridge water circuit; 82-check valve. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] Reference Figures 1 to 3 The water supply device provided by the embodiment of the present invention includes a shell 10 and a device body arranged in the shell 10, the device body includes a mounting frame 20, a first tank 30 arranged on the mounting frame 20 and used to accommodate a heat exchange medium, and a heat exchanger 40 arranged on one side of the mounting frame 20 for exchanging heat between drinking water and the heat exchange medium. A waterway plate 60 is also arranged in the shell 10, and a waterway structure that connects the heat exchanger 40 and the first tank 30 respectively is provided on the waterway plate 60.

[0043] In the embodiment of the present application, a heat exchanger 40 and a first tank 30 are provided in the main body of the device. The heat exchange medium in the first tank 30 is used to exchange heat with the drinking water in the heat exchanger 40 to preheat the drinking water, thereby reducing the heating pressure of the heater 50. The water supply device may further include a heater 50, and the heater 50 is connected to the heat exchanger 40 for reheating (continuing to) heat the drinking water after the heat exchange. When a higher temperature of drinking water is needed, the heater 50 is used for secondary heating. When a higher temperature of drinking water is not needed, the drinking water after heat exchange can be directly released, thereby providing users with drinking water of suitable temperature quickly and in large quantities. Moreover, the above-mentioned components are compactly arranged and reasonably laid out, and can be well integrated into a drinking water main unit, which is convenient for assembly and makes the whole machine smaller.

[0044] Reference Figures 5 to 7In this embodiment, the first tank 30 is a hot tank, which includes a hot tank body 31 for storing heat exchange medium, a heating device 32 provided in the hot tank body 31 for heating the heat exchange medium, and a circulating pump 33 for allowing the heat exchange medium to flow through the heat exchange medium channel 42 and then enter the first tank 30. The heat exchanger 40 has a drinking water channel 41 and a heat exchange medium channel 42 that are isolated from each other. The two ends of the drinking water channel 41 are respectively connected to the waterway plate 60 and the heater 50, and the two ends of the heat exchange medium channel 42 are respectively connected to the first tank 30, i.e., the hot tank, through heat exchange medium pipelines. The circulating pump 33 in the hot tank provides power for the flow of the heat exchange medium, which drives the heat exchange medium in the hot tank to flow into the heat exchange medium channel 42. When the heat exchange medium (hot water in this embodiment) flows in the heat exchange medium channel 42, the heat exchange medium exchanges heat with the drinking water in the drinking water channel 41 to heat the drinking water. After the temperature of the heat exchange medium decreases, it returns to the hot tank through the heat exchange medium channel 42 to be heated by the heating device 32, and circulates between the hot tank and the heat exchange medium channel 42 of the heat exchanger 40 driven by the circulation pump 33, ensuring that the heat exchange medium in the heat exchange medium channel 42 in the heat exchanger 40 always maintains a high temperature. After the water in the drinking water channel 41 is heated by the heat exchange medium in the heat exchange medium channel 42, the time required for the heater 50 to perform secondary heating on the drinking water to reach the set temperature is shorter (or the required power is smaller) when the water is discharged. Therefore, the user can release hot water of the set temperature by turning on the faucet, achieving the effect of instant hot water.

[0045] In this embodiment, the heat exchanger 40 is a plate heat exchanger, which is upright and fixed on one side of the mounting frame 20, and the heater 50 is a thick film heater, which is arranged adjacent to the plate heat exchanger, and the thick film heater is fixed to the mounting frame 20. Since the first tank 30 is fixed in the mounting frame 20, the heat exchanger 40 and the heater 50 are located side by side on the side of the first tank 30, which not only makes good use of the space on the side of the first tank 30, making the entire layout structure as a rectangular parallelepiped, but also this arrangement method makes the water or circuit connection between the components as short as possible, which is convenient for wiring and makes the main structure of the equipment more compact. The heat exchanger 40 is a plate heat exchanger, which has a good heat exchange effect and is suitable for large-flow water discharge scenarios.

[0046] Specifically, in this embodiment, the heat exchanger 40 itself defines a height direction, and the height direction is set as the first direction. The heat exchanger 40 includes a plurality of heat exchange baffles 43, and the plurality of heat exchange baffles 43 are arranged in sequence along the first direction. The outer edges of the plurality of heat exchange baffles 43 are stacked together and sealed and connected by welding technology. Specifically, the outer edges of the plurality of heat exchange baffles 43 are stacked and welded. A drinking water channel or a heat exchange medium channel 42 is formed between two adjacent heat exchange baffles 43, and the drinking water channel 41 and the heat exchange medium channel 42 are alternately arranged in sequence. The plurality of drinking water channels 41 are interconnected, and the plurality of heat exchange medium channels 42 are interconnected, and the plurality of drinking water channels 41 and the plurality of heat exchange medium channels 42 are isolated from each other.

[0047] Compared with the prior art, the heat exchanger 40 of the present application adopts a structure of multiple heat exchange baffles 43, and a drinking water channel 41 or a heat exchange medium channel 42 is formed between two adjacent heat exchange baffles 43. The cross-sectional area of ​​the drinking water channel 41 and the heat exchange medium channel 42 formed in this way is larger, and the drinking water channel 41 and the heat exchange medium channel 42 are stacked, which increases the contact area between the drinking water channel 41 and the heat exchange medium channel 42, thereby increasing the heat conduction area of ​​the heat exchange medium channel 42 and the drinking water channel 41. At the same time, multiple heat exchange baffles 43 are arranged in sequence along the height direction, and the length of the drinking water channel 41 and the heat exchange medium channel 42 along the height direction is shorter, so that the flow rate per unit area of ​​the longitudinal cross-section of the water flow inside the drinking water channel 41 is smaller, so that the water flow can quickly absorb the heat of the heat exchange medium, thereby improving the efficiency of heat exchange.

[0048] Moreover, along the first direction, the drinking water channel 41 and the heat exchange medium channel 42 are arranged alternately in sequence. In this way, along the first direction, heat exchange medium channels 42 are arranged on both sides of the drinking water channel 41, and the heat exchange medium channels 42 on both sides heat the water flow in the drinking water channel 41 at the same time, which greatly improves the efficiency of water flow heating, enables the water flow to reach the specified temperature faster, and saves heating time.

[0049] In this embodiment, the heating device 32 in the hot tank generates heat and transfers it to the heat exchange medium (hot water). The heating device 32 is in direct contact with the heat exchange medium, so it can efficiently transfer heat, so that the heat exchange medium in the hot tank is quickly heated to the required temperature. By adjusting the power and working time of the heating device 32, the heating speed and temperature range of the medium in the hot tank body 31 can be flexibly controlled to meet the needs of different application scenarios.

[0050] In this embodiment, a temperature control assembly (not shown in the figure) is provided on the outer wall of the hot tank body 31. The temperature control assembly includes a temperature sensor provided on the outer wall of the hot tank body 31, a temperature control unit connected to the temperature sensor, and the temperature control unit and the heating device 32 are electrically connected to form a closed loop. The temperature control unit can disconnect or close the formed loop according to the temperature of the outer wall of the hot tank body 31. That is, the temperature control unit can adjust the working state of the heating device 32 according to the actual temperature of the hot tank body 31, so as to achieve precise control of the temperature in the hot tank body 31. When the heat exchange medium in the hot tank body 31 needs to be heated, the temperature control unit will connect the loop, and the heating device 32 will work to gradually increase the temperature of the medium; once the temperature reaches the preset upper limit of heating, the temperature control unit will immediately react and stop heating by disconnecting the connection loop with the heating device 32, so as to prevent the hot tank body 31 from overheating.

[0051] In addition, in this embodiment, a temperature probe can be detachably mounted on the hot tank body 31 to detect the temperature of the hot tank body 31. The temperature probe can be arranged on the top cover or the side wall of the hot tank body 31. It is a high-precision temperature measuring element, which can detect the temperature of the medium inside the hot tank in real time and accurately. The temperature probe can be detachably mounted on the hot tank body through its specific mounting method, such as threaded connection, snap connection, etc. Once installed in place, the temperature measuring part of the temperature probe will penetrate into the heat exchange medium inside the hot tank to detect the temperature of the medium in the hot tank.

[0052] In a specific application, the hot tank body 31 can be provided with a first thermostat 8 that can be automatically reset and a second thermostat 9 that can be manually reset. The first thermostat 8, the second thermostat 9 and the heating device 32 are all connected in series in the circuit. Both thermostats can disconnect the heating device 32. After the first thermostat 8 that can be automatically reset is triggered, for example, when the temperature is 100 degrees, the first thermostat 8 disconnects the heating device. When the temperature drops to 90 degrees, the first thermostat 8 that can be automatically reset automatically resets automatically, and the heating device 32 can work normally. If there is only one thermostat, if the thermostat fails, it is very unsafe. It is easy to cause a safety accident. Therefore, the two thermostats set in this case, even if the first thermostat 8 fails, then at a higher temperature, such as 110 degrees, the second thermostat 9 will be triggered. The heating device 32 can also be disconnected. At this time, the second thermostat 9 will no longer reset automatically, and the machine needs to be repaired, and it is disassembled and checked by professionals. Because the first thermostat 8 may have failed at this time, it needs to be checked and confirmed, so it is designed to be a second thermostat 9 that needs to be manually reset.

[0053] As a preferred embodiment, an outer side of the hot pot body 21 is provided with an insulation frame 70, and the insulation frame 70 is arranged in the mounting frame 20, and the insulation frame 70 is passed through from top to bottom. The main function of the insulation frame 70 is to reduce the heat loss of the first tank 30 (especially the hot tank body 31), improve thermal efficiency, and ensure that the medium operates stably within the set temperature range. The insulation frame 70 is tightly mounted on the outer side of the hot tank body 31 to form a continuous insulation layer, which can be made of high thermal resistance materials (such as rock wool, aluminum silicate fiber, polyurethane foam, etc.). These materials have excellent thermal insulation properties and can effectively block the transfer of heat; in the mounting frame 20, the insulation frame 70 not only plays a role in thermal insulation, but also provides certain protection and support for the hot tank body 31. The insulation frame 70 can fit tightly against the outer wall of the hot tank body 31 to reduce the loss of heat through the air gap. At the same time, the insulation frame 70 has a certain strength and rigidity, which can ensure that it can withstand the weight and pressure from the hot tank body 31 and the medium inside it, and prevent safety hazards caused by deformation or damage. During operation, when the hot tank heats the medium through the heating resistor tube, the insulation frame 30 can reduce heat loss, so that the medium can reach the required temperature faster and remain stable, which not only improves the heating efficiency of the drinking water equipment, but also reduces energy consumption and extends the service life of the equipment. It has a compact structure and strong practicality.

[0054] In one embodiment, a water supply waterway 67 is further provided on the waterway plate 60, and the water supply waterway 67 is connected to the hot tank to replenish the water lost due to evaporation of water in the hot tank. The water supply waterway 67 is connected to the water inlet waterway, and the water supply waterway 67 can be controlled by a water supply control valve.

[0055] Reference Figure 8 In another embodiment, the water supply device further includes a second tank 80, which is a cold tank. The cold tank is also arranged on the mounting frame 20 like the hot tank. The cold tank is connected to the water supply waterway 67 of the waterway plate 60, and the water supply waterway 67 is connected to the water inlet channel on the waterway plate 60. When the user needs cold water, the water entering from the water inlet 61 directly enters the cold tank and flows out directly after cooling, so that the user can quickly get cold water. In this way, the addition of the cold tank provides the user with the option of ice water, which increases the convenience of water use.

[0056] Furthermore, a water replenishment bridge waterway 81 is provided between the cold tank and the hot tank, and a one-way valve 82 is provided on the water replenishment bridge waterway 81. The one-way valve 82 controls the water replenishment flow so that the water can only flow from the cold tank to the hot tank, but cannot flow in the opposite direction from the hot tank to the cold tank. Specifically, in actual application, the water entering from the water inlet 61 of the waterway plate 60 enters the water replenishment waterway 67, and first fills the cold tank. When the cold tank is fully replenished, the water can flow through the water replenishment bridge waterway 81 and the one-way valve 82 to replenish the water in the hot tank due to evaporation. Of course, the one-way valve 82 can also be replaced by a control valve, and the control valve is used to control the direction of water flow.

[0057] In a specific application, the hot tank body 31 may be provided with a first water level sensor for sensing the water level in the hot tank body 31. The first water level sensor and the water replenishment control valve are both electrically connected to the control circuit board. When the water level in the hot tank body 31 is lower than the set range, the water replenishment valve can be activated. If there is only the first tank 30 (hot tank), the water replenishment waterway 67 is directly connected to the first tank 30 (hot tank). If the first tank 30 (hot tank) and the second tank (cold tank) are provided at the same time, the water replenishment waterway 67 is directly connected to the second tank (cold tank). The water replenishment bridge waterway 81 can be integrated into the waterway board and connected to the hot tank and the cold tank respectively through corresponding connecting pipes. A second water level sensor is provided in the cold tank. When the first water level sensor detects that the water level in the hot tank is lower than the first set value, or when the second water level sensor detects that the water level in the cold tank is lower than the second set value, the water supply valve can be started, and the water supply flow first supplies water to the cold tank. After the cold tank is filled with water, the water supply flow can enter the hot tank through the one-way valve. When the first water level sensor senses that the water level has risen to the upper limit water level, the water supply valve can be disconnected to stop supplying water.

[0058] In a specific application, the first tank (hot tank) 30 can be square, which can make better use of the space in the body. The hot tank body has a medium cavity storing a heat exchange medium, and the heat exchange medium is used to heat the heat exchanger 40 after being heated, thereby exchanging heat for drinking water, thereby achieving the effect of heating the drinking water.

[0059] The waterway plate may be connected to a heat exchange water suction pipe and a heat exchange water return pipe, and the heat exchange water suction pipe or the heat exchange water return pipe is connected to a circulation pump for circulating the heat exchange medium through the heat exchanger 40. The heat exchange water suction pipe and the heat exchange water return pipe may extend into the medium cavity, and the water suction port of the heat exchange water suction pipe is close to the top position of the medium cavity, so as to extract the upper layer of the heat exchange medium in the medium cavity; the heat exchange water return pipe may extend into the medium cavity, and the water return port of the heat exchange water return pipe is close to the middle or bottom position of the medium cavity, so as to return the heat exchange medium to the medium cavity. During operation, the medium cavity inside the hot tank body is first filled with heat exchange medium, which can be an aqueous solution or a heat transfer oil. In this embodiment, the heat exchange medium is preferably an aqueous solution. These heat exchange mediums gradually heat up under the heating of the heat source and store a large amount of heat energy. Since the heated heat exchange medium will move upward due to the heat, the temperature of the heat exchange medium at the top of the medium cavity is usually higher. By inserting one end of the heat exchange water absorption pipe deep into the medium cavity and designing it at the top position of the medium cavity, the high-temperature heat exchange medium in the hot tank body 31 can be directly extracted for heat exchange in the heat exchanger 40, which can ensure that the heat exchange medium with the highest temperature in the hot tank body 31 is used when heat exchange is performed with the drinking water to be heated. The heating device 32 in the hot tank is arranged close to the bottom of the hot tank body 31. The heat exchange medium refluxed from the return water port of the heat exchange return pipe of the heat exchanger 40 is directly heated by the heating device 32, and the heating effect is good. In specific applications, the heating device 32 may also be provided with two or more groups, and each heating device 32 may be arranged at intervals from bottom to top to heat the heat exchange medium in the tank, that is, after the relatively low temperature heat exchange medium enters the hot tank body 31 from the bottom near the hot tank body 31, it moves upward after being heated, and may be heated multiple times during the movement process, so as to heat the heat exchange medium to the set temperature in time. When two or more heating devices 32 are provided, the heating devices 32 may be arranged in parallel.

[0060] In specific applications, the diameter of the heat exchange return pipe can be larger than the diameter of the heat exchange suction pipe. By designing the diameter of the heat exchange return pipe to be larger than the diameter of the heat exchange suction pipe, the flow rate and impact force of the heat exchange medium during reflux can be reduced, thereby effectively reducing the water flow disturbance inside the hot tank body 31, and at the same time, it can also prevent the lower temperature heat exchange medium from affecting the higher temperature heat exchange medium in the upper layer, so that the high-temperature heat exchange medium in the upper part of the hot tank body 31 remains stable. Specifically, the heat exchange return pipe can include at least two sections of pipe bodies, and the diameter of each pipe body can increase gradually along the return direction. In specific applications, the pipe body close to the return port can adopt a trumpet-shaped pipe body to further reduce the impact of the water flow.

[0061] In a specific application, the hot tank body 31 may be provided with a monitoring component, which is mounted on the hot tank body; the monitoring component may include an uploaded first water level sensor. The monitoring component may be connected to a control system (control circuit board). Further, the monitoring component includes a water level sensor (first water level sensor); the water level sensor is mounted on the hot tank body 31, and is used to monitor the water level of the heat exchange medium in the hot tank body; the number of the water level sensors is multiple; each of the water level sensors is mounted on the top of the hot tank body and / or around the hot tank body to achieve multi-point water level detection and avoid water level data deviation caused by changes in the hot tank posture. In a specific application, the monitoring component may also include a posture sensor, which is used to monitor the posture of the hot tank body 31. At this time, only at least one water level sensor needs to be set to accurately determine the specific situation of the water level in the hot tank body 31.

[0062] According to the above technical solution, the water level sensor and the attitude sensor are installed on the top and / or around the hot tank body, which can monitor the water level changes and attitude information inside the hot tank in all directions and at multiple angles, thereby improving the accuracy and comprehensiveness of the monitoring data, while avoiding blind spots or errors that may be caused by single-position installation, thereby improving the stability and reliability of the entire drinking water supply device.

[0063] In this embodiment, the housing 10 is in the shape of a rectangular box, and the first tank 30 is also in the shape of a rectangular box as a whole. The shape and size of the housing 10 match the first tank 30, so that the first tank 30 can be better placed in the housing 10. A side panel of the housing 10 can be opened / closed relative to the housing 10. In this embodiment, the side panel is a back panel, which can be opened / closed relative to the housing 10. A sliding matching structure is provided between the device body and the housing 10, so that the device body can be pushed into or pulled out of the housing 10 from the back panel.

[0064] In the embodiment of the present application, the back panel is set to be movable and can be opened or closed relative to the outer shell 10, so as to facilitate the installation of the device body from the back side. The sliding fit structure between the device body and the outer shell 10 enables the device body to enter and exit the outer shell 10 using the sliding fit structure. In this way, there is no need to lift the entire device body, and pushing and pulling is more labor-saving and time-saving. This structure also facilitates the maintenance and inspection of the device body.

[0065] Specifically, the sliding matching structure is a guide rail provided in the housing 10 and a slider provided on the device body. On the one hand, the movement of the device body is more labor-saving. On the other hand, the slider is clamped on the guide rail, which also plays a role of fixing and limiting the device body, thereby preventing the device body from shifting left and right in the housing 10 during transportation or handling. At the same time, in order to further facilitate the movement of the device body, a roller is provided at the bottom of the device body. As mentioned above, when the above-mentioned sliding matching structure is provided on the device body and the housing 10, the positions of the roller and the slider should be spaced apart to avoid interference.

[0066] Reference Figure 3 and Figure 4 In this embodiment, the waterway plate 60 is arranged on the top of the first tank 30, and has multiple interfaces and pipelines thereon, which are used to connect the first tank 30, the heat exchanger 40, the external water source and the water faucet, etc., and have the function of connecting the waterway.

[0067] Reference Figure 3 and Figure 4 as well as Figures 9 to 12 The waterway plate 60 provided in the embodiment of the present invention includes a waterway plate body 100, and the waterway plate body 100 includes a first waterway structure 510, a second waterway structure 520, a first control valve 561 and a second control valve 562. The first waterway structure 510 extends along the first direction X and is used to connect the water end (such as a water outlet faucet). The second waterway structure 520 at least partially extends along the second direction Y and spans the first waterway structure 510. The second waterway structure 520 is used to connect the first waterway structure 510 and the water-demanding equipment (water replenishment pipeline, the first waterway structure 510 can be the above-mentioned water replenishment bridge waterway 81). The first control valve 561 is used to control the on-off of the first waterway structure 510, and the second control valve 562 is used to control the on-off of the second waterway structure 520. Among them, the first control valve 561 and the second control valve 562 are both connected to the first waterway structure 510 and are arranged adjacent to each other along the first direction X.

[0068] In a specific implementation, when the first control valve 561 is opened and the second control valve 562 is closed, the first water channel structure 510 is connected to the water-using end, and the first water channel structure 510 is disconnected from the second water channel structure 520, and the first water channel structure 510 can transport water to the water-using end, that is, to supply water to the water-using end. When the second control valve 562 is opened and the first control valve 561 is closed, the first water channel structure 510 and the second water channel structure 520 are connected, and the first water channel structure 510 is disconnected from the water-using end, and the first water channel structure 510 can transport water to the second water channel structure 520, and then transport water to the water-demanding equipment (hot tank or cold tank), that is, to supply water to the water-demanding equipment.

[0069] By adopting the above technical solution, the first water channel structure 510 is turned on and off by setting the first control valve 561. The second water channel structure 520 is turned on and off by setting the second control valve 562. By arranging the first control valve 561 and the second control valve 562 adjacent to the first water channel structure 510 along the first direction X, the first control valve 561 and the second control valve 562 can be compactly connected to the first water channel structure 510. Compared with the technical solution in which the first control valve 561 is connected to the first water channel structure 510 and the second control valve 562 is connected to the second water channel structure 520, the compactness of the arrangement of the first control valve 561 and the second control valve 562 is improved.

[0070] The waterway plate body 100 has a first end 100a and a second end 100b that are arranged opposite to each other along the second direction Y. The first control valve 561 extends from the first waterway structure 510 along the second direction Y with a tendency to approach the first end 100a, and the second control valve 562 extends from the first waterway structure 510 along the second direction Y with a tendency to approach the second end 100b. In other words, the first control valve 561 and the second control valve 562 both extend along the second direction Y and are respectively arranged on both sides of the first waterway structure 510. It can be understood that in other embodiments, the first control valve 561 and the second control valve 562 can also be arranged on the same side of the first waterway structure 510.

[0071] In one embodiment, the water inlet end of the first control valve 561 and the water inlet end of the second control valve 562 are arranged adjacent to each other. The first control valve 561 and the second control valve 562 are respectively arranged on both sides of the first water channel structure 510, and the water inlet end of the first control valve 561 and the water inlet end of the second control valve 562 are arranged adjacent to each other.

[0072] The waterway plate body 100 is provided with two first connection parts 571 and two second connection parts 572, and the two first connection parts 571 and the two second connection parts 572 are both connected to the first waterway structure 510, and the two first connection parts 571 are arranged downstream of the two second connection parts 572 and arranged adjacent to the two second connection parts 572. Among them, the first control valve 561 is installed on the two first connection parts 571, and the second control valve 562 is installed on the two second connection parts 572. In this way, the first control valve 561 and the second control valve 562 are arranged adjacent to the first waterway structure 510 along the first direction X. By arranging the two first connection parts 571 downstream of the two second connection parts 572, the first control valve 561 is arranged downstream of the second control valve 562. In this way, when the first waterway structure 510 is controlled to be on and off by the first control valve 561, the on and off of the first waterway structure 510 and the water end can be controlled, and the communication between the first waterway structure 510 and the second waterway structure 520 will not be affected. In a specific application, the two first connection parts 571 and the two second connection parts 572 all extend along the third direction Z.

[0073] In one embodiment, two first connection parts 571 are arranged along the first direction X, one first connection part 571 is connected to the water inlet end of the first control valve 561, and the other first connection part 571 is connected to the water outlet end of the first control valve 561. In this way, the first control valve 561 can be extended along the second direction Y.

[0074] In one embodiment, two second connection parts 572 are arranged along the first direction X, the second waterway structure 520 and the first waterway structure 510 are arranged along the third direction Z, one second connection part 572 is connected to the water inlet end of the second control valve 562, and the other second connection part 572 is connected to the water outlet end of the second control valve 562, and crosses the first waterway structure 510 and extends to the second waterway structure 520 along the third direction Z. In this way, the second control valve 562 is extended along the second direction Y, and the water outlet end of the second control valve 562 is connected to the second waterway structure 520. By controlling the second control valve 562 to be opened or closed, the on-off of the second waterway structure 520 can be controlled. Among them, the second waterway structure 520 and the second connection part 572 are respectively arranged on both sides of the first waterway structure 510 along the third direction Z. Specifically, the second water channel structure 520 is disposed below the first water channel structure 510, and the second connection portion 572 is disposed above the first water channel structure 510, so that the second control valve 562 can be disposed above the water channel plate body 100. In addition, the first connection portion 571 adjacent to the second connection portion 572 is connected to the water inlet end of the first control valve 561, and the second connection portion 572 adjacent to the first connection portion 571 is connected to the water inlet end of the second control valve 562, so that the water inlet end of the first control valve 561 and the water inlet end of the second control valve 562 are disposed adjacent to each other.

[0075] The waterway plate body 100 further includes a third waterway structure 530 and a fourth waterway structure 540. The third waterway structure 530 extends along the first direction X and is arranged adjacent to the first waterway structure 510 along the second direction Y, for connecting a water source (e.g., a water purification pipe of a water purifier). The fourth waterway structure 540 extends along the second direction Y or the third direction Z, and is connected between the first waterway structure 510 and the third waterway structure 530, so that the water in the third waterway structure 530 can flow into the first waterway structure 510. In this way, it is possible to transport water for the first waterway structure 510. By arranging the third waterway structure 530 and the fourth waterway structure 540 in the waterway plate body 100, the integration of the waterway plate body 100 can be improved, and by arranging the third waterway structure 530 adjacent to the first waterway structure 510 along the second direction Y, the first waterway structure 510 and the third waterway structure 530 can be arranged compactly.

[0076] The waterway plate body 100 further includes a third control valve 563, which is used to control the on-off of the fourth waterway structure 540. In a specific application, when it is necessary to transport water to the first waterway structure 510, the third control valve 563 can be opened to make the fourth waterway structure 540 conductive, and water can flow from the third waterway structure 530 into the first waterway structure 510 through the fourth waterway structure 540.

[0077] In one embodiment, the portion where the first water channel structure 510 communicates with the fourth water channel structure 540 is located upstream of the portion where the first water channel structure 510 communicates with the second water channel structure 520. In this way, the water of the third water channel structure 530 can flow through the fourth water channel structure 540 and the first water channel structure 510 and be transported to the second water channel structure 520.

[0078] In one embodiment, the first control valve 561 is located on a side of the first water channel structure 510 close to the third water channel structure 530, and the second control valve 562 is located on a side of the first water channel structure 510 away from the third water channel structure 530. In other words, the third water channel structure 530 is disposed on a side of the first water channel structure 510 close to the first end 100a. At least part of the third control valve 563 is disposed between the first water channel structure 510 and the third water channel structure 530, and the third control valve 563 extends along the first direction X in a trend close to the first control valve 561, and is disposed corresponding to the second control valve 562.

[0079] The waterway plate body 100 is further provided with two third connection parts 573, which are arranged along the second direction Y, one third connection part 573 is connected between the third waterway structure 530 and the water inlet end of the third control valve 563, and the other third connection part 573 is connected between the fourth waterway structure 540 and the water outlet end of the third control valve 563. In this way, the installation of the third control valve 563 is achieved, and the third control valve 563 is extended along the first direction X. Specifically, the third connection part 573 extends along the third direction Z.

[0080] In one embodiment, the third water channel structure 530 is also used to connect the heat exchanger 40 and the heater 50 .

[0081] The water channel plate body 100 further includes a fourth control valve 564, which is used to control the opening and closing of the drinking water channel between the third water channel structure 530 and the heat exchanger 40. In a specific application, when it is necessary to transport water to the heat exchanger and the instant heater, the fourth control valve 564 can be opened, so that the third water channel structure 530 is connected to the heat exchanger and the instant heater, and the water in the third water channel structure 530 can flow into the heat exchanger and the instant heater.

[0082] In one embodiment, the portion where the third water channel structure 530 is connected to the fourth water channel structure 540 is located upstream of the portion where the third water channel structure 530 is connected to the drinking water channel of the heat exchanger 40. At least part of the fourth control valve 564 is connected to the third water channel structure 530, and the fourth control valve 564 extends along the second direction Y with a trend close to the first water channel structure 510, and is adjacent to and corresponding to the third control valve 563. That is, the fourth control valve 564 and the first control valve 561 are respectively arranged on opposite sides of the third control valve 563 along the first direction X.

[0083] The waterway plate body 100 is also provided with a fifth waterway structure 550, which extends along the second direction Y and is arranged at the end of the third waterway structure 530. The fifth waterway structure 550 is used to connect the third waterway structure 530 and the drinking water channel of the heat exchanger 40. The waterway plate body 100 is also provided with two fourth connecting parts 574, which are arranged along the first direction X. One fourth connecting part 574 is connected between the third waterway structure 530 and the water inlet end of the fourth control valve 564, and the other fourth connecting part 574 is connected between the water outlet end of the fourth control valve 564 and the fifth waterway structure 550. In this way, on the one hand, the fourth control valve 564 is extended along the second direction Y, and on the other hand, the fourth control valve 564 can control the opening and closing of the fifth waterway structure 550, thereby realizing the opening and closing of the drinking water channel of the third waterway structure 530 and the heat exchanger 40. Among them, the fourth connecting part 574 extends along the third direction Z.

[0084] It can be understood that in other embodiments, the water channel plate body 100 may not be provided with the fifth water channel structure 550. When this technical solution is adopted, the two fourth connection parts 574 are both connected to the third water channel structure 530 and are arranged along the first direction X. One fourth connection part 574 is connected to the water inlet end of the fourth control valve 564, and the other fourth connection part 574 is connected to the water outlet end of the fourth control valve 564.

[0085] In one embodiment, the first connection part 571, the second connection part 572, the third connection part 573 and the fourth connection part 574 are all arranged above the waterway plate body 100, so that the first control valve 561, the second control valve 562, the third control valve 563 and the fourth control valve 564 are all arranged above the waterway plate body 100. The valve body will not affect the arrangement of the waterway plate body 100 and other components of the water supply device (such as the hot tank), thereby facilitating the installation of the waterway plate body 100.

[0086] In one embodiment, the first water channel structure 510 is also used to connect to the drinking water channel of the heat exchanger 40. In this way, the first water channel structure 510 also receives water from the drinking water channel of the heat exchanger 40. In a specific application, the drinking water channel of the heat exchanger 40 is a heated water body (hot water) transported by the first water channel structure 510, and the water body transported by the third water channel structure 530 is an unheated water body (normal temperature water) transported by the first water channel structure 510.

[0087] In one embodiment, the portion where the first water channel structure 510 is connected to the drinking water channel of the heat exchanger 40 is located upstream of the portion where the first water channel structure 510 is connected to the fourth water channel structure 540. In this way, the heated water can flow through the entire first water channel structure 510, and the first water channel structure 510 can be sterilized at high temperature.

[0088] =The water channel plate body 100 has a third end 100c and a fourth end 100d that are relatively arranged along the first direction X, and the part of the first water channel structure 510 connected to the water end and the part of the third water channel structure 530 connected to the water source are both arranged close to the third end 100c, and the part of the first water channel structure 510 connected to the drinking water channel of the heat exchanger 40 and the part of the third water channel structure 530 connected to the drinking water channel of the heat exchanger 40 are both arranged close to the fourth end 100d.

[0089] When the water channel plate body 100 is used to provide hot water to the water-using end, the first control valve 561 and the fourth control valve 564 are controlled to be open, and the second control valve 562 and the third control valve 563 are controlled to be closed, and normal temperature water flows through the third water channel structure 530 and the fifth water channel structure 550, enters the drinking water channel of the heat exchanger 40, and after being processed by the drinking water channel of the heat exchanger 40 to generate hot water, flows into the first water channel structure 510, and is then transported to the water-using end.

[0090] When the water channel plate body 100 is used to provide hot water for water-demanding equipment, the second control valve 562 and the fourth control valve 564 are controlled to be open, and the first control valve 561 and the third control valve 563 are closed. Normal temperature water flows through the third water channel structure 530 and the fifth water channel structure 550, enters the drinking water channel of the heat exchanger 40, and after being processed by the drinking water channel of the heat exchanger 40 to generate hot water, it flows into the first water channel structure 510, and then flows through the second water channel structure 520 and is transported to the water-demanding equipment.

[0091] When the water channel plate body 100 is used to provide normal temperature water to the water-using end, the first control valve 561 and the third control valve 563 are controlled to be open, and the second control valve 562 and the fourth control valve 564 are controlled to be closed, and the normal temperature water flows through the third water channel structure 530 and the fourth water channel structure 540, enters the first water channel structure 510, and is then transported to the water-using end.

[0092] When the water channel plate body 100 is used to provide normal temperature water for water-requiring equipment, the second control valve 562 and the third control valve 563 are controlled to be open, and the first control valve 561 and the fourth control valve 564 are closed. The normal temperature water flows through the third water channel structure 530 and the fourth water channel structure 540, enters the first water channel structure 510, and then flows through the second water channel structure 520 to be delivered to the water-requiring equipment.

[0093] The water-requiring components may be a hot tank and / or a cold tank. The hot tank contains a heat exchange medium for heat exchange with drinking water, and the cold tank is used to cool the water flowing through it to generate cold drinking water.

[0094] The heat exchanger 40 is provided with a drinking water channel 41 and a heat exchange medium channel 42 which are adjacent and isolated. The heat exchange medium channel 42 is connected to the hot tank, and the drinking water channel 41 is connected to the first water channel structure 510 and the third water channel structure 530 of the water channel plate body 100. Specifically, the heat exchange medium in the hot tank can flow from the hot tank into the heat exchange medium channel 42, and after heat exchange with the water in the drinking water channel 41 in the heat exchange medium channel 42, it flows back to the hot tank. The water in the third water channel structure 530 flows into the drinking water channel 41, and after heat exchange with the heat exchange medium in the heat exchange medium channel 42 in the drinking water channel 41 to generate hot water, it flows into the first water channel structure 510.

[0095] Reference Figure 8 The working principle of the water supply device in the present invention is as follows: an external water source inputs drinking water into the drinking water channel 41 of the heat exchanger 40 through the water inlet 61 of the water circuit board 60, the heating device 32 in the hot tank heats the heat exchange medium therein, and under the drive of the circulating pump 33, the heat exchange medium in the heat exchange medium channel 42 exchanges heat with the drinking water in the drinking water channel 41, so that the temperature of the drinking water is increased, and the drinking water flows into the heater 50 for secondary heating. After reaching the preset temperature, it flows from the water outlet 64 of the water circuit board 60 to the water outlet faucet for discharge. When the water temperature of the drinking water after heat exchange meets the user's needs, the heater 50 does not need to be turned on, and the drinking water after heat exchange is directly discharged from the water outlet faucet; and when the user needs to use cold water, the drinking water at the water inlet 61 directly flows into the cold tank from the water supply waterway 67 and flows to the water outlet faucet for discharge; when the drinking water in the water supply waterway 67 fills the cold tank, the one-way valve is opened, and the drinking water for water supply flows into the hot tank to supplement the water lost in the hot tank due to evaporation. The waste water from the hot tank and the cold tank flows into the waste water pipeline on the waterway plate 60 and is discharged outward from the waste water pipe opening.

[0096] The water supply device in this embodiment adopts the above-mentioned structure and can provide users with drinking water of different water temperatures. It has a fast heating speed and low power consumption, and can quickly provide sufficient drinking water, which greatly facilitates user use.

[0097] In specific applications, the water supply device is provided with a connector or a connecting line for connecting to the water purifier, for electrical connection or signal connection with the water purifier, and for connecting to the water purifier, that is, the water purifier can be directly electrically connected to the water supply device, which is more convenient for installation and use. In some scenarios, the signal line in the water purifier can also be connected to the water supply device, and the water quality signal, water flow signal, etc. in the water purifier can be directly fed back to the water supply device.

[0098] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A water supply device, comprising a housing and a device body arranged in the housing, characterized in that: The equipment body includes a mounting frame, a first tank arranged on the mounting frame and used to accommodate a heat exchange medium, and a heat exchanger arranged on the mounting frame and used to perform heat exchange between drinking water and the heat exchange medium. A waterway plate is also arranged in the outer shell, and a waterway structure is also arranged on the waterway plate, which is connected to the heat exchanger and the first tank respectively.

2. The water supply device according to claim 1, characterized in that: The water supply device further comprises a heater, which is in communication with the heat exchanger and is used to reheat the drinking water after heat exchange; The heat exchanger has a drinking water channel and a heat exchange medium channel that are isolated from each other. The two ends of the drinking water channel are respectively connected to the waterway plate and the heater. The two ends of the heat exchange medium channel are respectively connected to the first tank through heat exchange medium pipelines. The first tank is provided with a circulation pump for allowing the heat exchange medium to flow through the heat exchange medium channel and then enter the first tank.

3. The water supply device according to claim 2, characterized in that: The heat exchanger comprises a plurality of heat exchange baffles, which are arranged in sequence along a first direction, and drinking water channels or heat exchange medium channels are formed between adjacent heat exchange baffles, and the drinking water channels and heat exchange medium channels are alternately arranged in sequence.

4. The water supply device according to claim 1, characterized in that: The first tank is a hot tank, and the water channel plate is also provided with a water supply channel for supplying water to the first tank.

5. The water supply device according to claim 4, characterized in that: The water supply device also includes a second tank, which is a cold tank. The second tank is arranged on the mounting frame, and the second tank is connected to the water replenishment waterway.

6. The water supply device according to claim 5, characterized in that: A water replenishment bridge waterway is provided between the second tank and the first tank, and the water replenishment bridge waterway is provided with a one-way valve or an electric control valve.

7. The water supply device according to claim 2, characterized in that: The heat exchanger is a plate heat exchanger and is fixed to one side of the mounting frame. The heater is a thick film heater and is arranged adjacent to the plate heat exchanger. The thick film heater is fixed to the mounting frame.

8. The water supply device according to claim 1, characterized in that: The water supply device is provided with a connector or a connecting line for connecting with the water purifier, and is used for electrical connection or signal connection with the water purifier.

9. The water supply device according to claim 4, characterized in that: The hot tank comprises a hot tank body for storing a heat exchange medium and a heating device arranged in the hot tank body for heating the heat exchange medium, wherein the heating device is arranged close to the bottom of the hot tank body.

10. The water supply device according to claim 1, characterized in that: A side plate of the shell can be opened / closed relative to the shell, and a sliding matching structure is provided between the device body and the shell, so that the device body can be pushed into or pulled out of the shell from the side plate.

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