Water dispenser

Abstract

The utility model relates to the technical field of water drinking equipment, and provides a water dispenser which comprises a first water pump, a water flow exchanger, an electromagnetic valve, a water tank, a first water pipe, a second water pump and a second water pipe, the water flow exchanger is arranged on the first water pipe and communicated with the water tank and the second water pump, and the electromagnetic valve is arranged on the second water pipe and used for controlling the second water pipe to be connected or disconnected. The water inlet end and the water outlet end of the first water pump are correspondingly communicated with the second water pipe and the water flow exchanger respectively, and the first water pump is used for pumping residual water in the second water pipe and the first water pipe into the water tank. After water receiving is completed, residual water in the second water pipe and the first water pipe can be pumped back into the water tank through the first water pump, so that when a user receives water next time, water flowing out of the second water pipe is hot water flowing out after being heated by the water tank, and the experience feeling of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water equipment, in particular to a water drinking machine. Background Art

[0002] The water dispenser is mainly used to store the room temperature water provided by the external water source first, and then heat it to output hot water of a certain temperature. The water dispenser mainly includes a heating device, a water tank, a water pump, a solenoid valve, a first water pipe and a second water pipe, wherein the heating device is arranged in the water tank, and is used to heat the water in the water tank, the water inlet end of the water pump is connected to the water tank through the first water pipe, and the water outlet end of the water pump is connected to the second water pipe, and the solenoid valve is arranged on the second water pipe to control the heated hot water in the water tank to flow out through the first water pipe, the water pump, the second water pipe and the solenoid valve in sequence.

[0003] However, after the second water pipe has run out of water, the water pump and the solenoid valve are closed, resulting in residual water in the first water pipe and the second water pipe. During the next use, the residual water in the two water pipes will flow out first due to natural cooling, so that the hot water received by the user is mixed with cooled normal temperature water or cold water, thus affecting the user experience. Utility Model Content

[0004] The problem solved by the utility model is how to effectively prevent residual water from remaining in the water outlet pipe of the water dispenser after the water dispenser receives water.

[0005] To solve the above problems, the utility model provides a water dispenser, comprising a first water pump, a water flow exchanger, a solenoid valve, and a water tank, a first water pipe, a second water pump and a second water pipe which are sequentially connected along the water outlet direction, the water flow exchanger being arranged on the first water pipe and being respectively connected to the water tank and the second water pump, the solenoid valve being arranged on the second water pipe for controlling the on and off of the second water pipe; the water inlet end and the water outlet end of the first water pump are respectively connected to the second water pipe and the water flow exchanger, and the first water pump is used to pump the remaining water in the second water pipe and the first water pipe into the water tank.

[0006] Optionally, the water dispenser further comprises a disinfection device, wherein the disinfection device is arranged at an end of the second water pipe away from the second water pump.

[0007] Optionally, the water dispenser also includes a power board, and the disinfection device includes a base pipe, an insulating layer, a heating structure, a fastener and a conductive structure which are sequentially sleeved and connected from the inside to the outside, the base pipe is sleeved outside the second water pipe, the conductive structure includes a conductive ring and a terminal electrically connected to the conductive ring, the two conductive structures are distributed along the axial direction of the fastener, and the two conductive rings are electrically connected to different parts of the heating structure respectively, and the power board is electrically connected to the two terminal heads.

[0008] Optionally, the disinfection device further comprises a protective cover, and the protective cover is sleeved on the outer side of the conductive structure.

[0009] Optionally, the water flow exchanger has a first pipe opening, a second pipe opening and a third pipe opening which are interconnected, the first pipe opening and the second pipe opening are respectively connected to the water inlet ends of the water tank and the second water pump, and the water outlet end of the first water pump is connected to the third pipe opening.

[0010] Optionally, the second water pipe includes a first pipeline and a second pipeline, the water outlet of the second water pump is connected to the water inlet of the solenoid valve through the first pipeline, and the water outlet of the solenoid valve is connected to the second pipeline;

[0011] The water inlet end of the first water pump is communicated with the first pipeline.

[0012] Optionally, the water dispenser further comprises a shell, the shell comprising a cover body and a support seat, the first water pump, the solenoid valve, the water flow exchanger, the first water pipe and the second water pump are arranged in the cover body, and at least a part of the second water pipe is in the cover body;

[0013] The support seat is arranged on one side of the cover body and connected to the bottom end of the cover body, and the water tank is arranged on the support seat.

[0014] Optionally, the cover body includes a first shell and a second shell, the first shell is connected to the support seat, and the first shell and the second shell are detachably connected.

[0015] Optionally, the water tank includes a tank cover, a tank body, a heating structure and a tank base, the tank body is a cylindrical structure with two openings, the tank cover and the tank base are respectively arranged at the two openings of the tank body, and the heating structure is arranged in the tank body or the tank base.

[0016] Optionally, the water tank further includes a handle, and the handle is arranged on the tank cover or the tank body.

[0017] Compared with the prior art, the water outlet direction in the utility model can be understood as the direction in which the water in the water tank flows out through the first water pipe, the second water pump and the second water pipe in sequence. When the user receives water through the water dispenser, the solenoid valve is opened to connect the second water pipe, and the second water pump works to generate suction to generate negative pressure in the first water pipe, so as to pump the water in the water tank out and flow out through the first water pipe, the water flow exchanger, the second water pump and the second water pipe in sequence, so as to facilitate the user to receive water. When the water is collected, the solenoid valve is closed and the second water pump stops working, so that residual water will remain in the first water pipe and the second water pipe. At this time, the solenoid valve can be opened, and the first water pump will work to generate suction to draw the residual water in the second water pipe into the first water pipe through the water flow exchanger and mix it with the residual water in the first water pipe, and then the residual water mixed in the first water pipe is pumped back into the water tank to avoid residual water in the first water pipe and the second water pipe. When the user collects water next time, the water flowing out of the second water pipe is all hot water heated by the water tank. In other words, the hot water flowing out of the second water pipe does not contain normal temperature water or cold water after the residual water is cooled down, so as to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the pipe connection of the water dispenser in the embodiment of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of a water dispenser in an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the disinfection device in the embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the explosion structure of the water dispenser in the embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of a water dispenser in an embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the explosion structure of the water tank in the embodiment of the utility model;

[0024] Figure 7 It is a structural schematic diagram of a water tank in an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1-first water pump; 2-water flow exchanger; 3-solenoid valve; 4-water tank; 41-tank cover; 42-tank body; 43-heating structure; 44-tank base; 45-handle; 5-first water pipe; 6-second water pump; 7-second water pipe; 71-first pipeline; 72-second pipeline; 8-disinfection device; 81-insulating layer; 82-heating structure; 83-conductive structure; 84-protective cover; 9-housing; 91-cover body; 911-first shell; 912-second shell; 92-support seat; 10-power board. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0031] In order to solve the above technical problems, Figure 1 and Figure 2As shown, an embodiment of the utility model provides a water dispenser, comprising a first water pump 1, a water flow exchanger 2, a solenoid valve 3, and a water tank 4, a first water pipe 5, a second water pump 6, and a second water pipe 7 which are sequentially connected along the water outlet direction, the water flow exchanger 2 is arranged on the first water pipe 5 and is respectively connected to the water tank 4 and the second water pump 6, the solenoid valve 3 is arranged on the second water pipe 7, and is used to control the on-off of the second water pipe 7; the water inlet end and the water outlet end of the first water pump 1 are respectively connected to the second water pipe 7 and the water flow exchanger 2, and the first water pump 1 is used to pump the remaining water in the second water pipe 7 and the first water pipe 5 into the water tank 4.

[0032] It should be noted that the water tank 4 can be connected to an external water source through a water inlet pipe, so that water can be injected into the water tank 4 through the water inlet pipe; the water tank 4 is used to store water injected from the external water source and heat the water into hot water with a certain temperature. The water flow exchanger 2 is a pipe joint with multiple pipe openings, so as to facilitate the pipe connection between the water tank 4 and the water inlet end of the second water pump 6, and facilitate the connection between the water outlet end of the first water pump 1 and the water tank 4.

[0033] The water outflow direction in this embodiment can be understood as the direction in which the water in the water tank 4 flows out along the first water pipe 5, the second water pump 6 and the second water pipe 7 in sequence, wherein the water outflow direction can be expressed as Figure 1 When the user receives water from the water dispenser, the solenoid valve 3 opens to conduct the second water pipe 7, and the second water pump 6 works to generate suction to generate negative pressure in the first water pipe 5, so as to pump the water in the water tank 4 out and flow out through the first water pipe 5, the water flow exchanger 2, the second water pump 6 and the second water pipe 7 in sequence, so that the user can receive water. After the water is collected, the solenoid valve 3 is closed and the second water pump 6 stops working, so that residual water will remain in the first water pipe 5 and the second water pipe 7. At this time, the solenoid valve 3 can be opened, and the first water pump 1 can work to generate suction to draw the residual water in the second water pipe 7 into the first water pipe 5 through the water flow exchanger 2, and mix it with the residual water in the first water pipe 5, and then pump the mixed residual water in the first water pipe 5 back into the water tank 4 to avoid residual water in the first water pipe 5 and the second water pipe 7. When the user collects water next time, the water flowing out of the second water pipe 7 is all hot water heated by the water tank 4. In other words, the hot water flowing out of the second water pipe 7 does not contain normal temperature water or cold water after the residual water is cooled down, so as to improve the user experience.

[0034] Among them, the water dispenser also includes a power board 10. The operation or stop of the first water pump 1 and the second water pump 6, and the on or off of the solenoid valve 3 can be controlled by the power board 10, and can also be controlled by external buttons or the like. No specific limitation is made here. As long as the first water pump 1, the second water pump 6, and the solenoid valve 3 can be controlled according to a certain logic, they are applicable to the technical solution, and no specific limitation is made here.

[0035] The remaining water in the second water pipe 7 and the first water pipe 5 is pumped back to the water tank 4. Figure 1 The dashed arrow in the figure indicates the

[0036] In one embodiment of the present invention, Figure 2 As shown, the water dispenser further includes a disinfection device 8 , which is disposed at an end of the second water pipe 7 away from the second water pump 6 .

[0037] It should be noted that since the second pipe 72 of the second water pipe 7 is equivalent to a water outlet pipe and is generally exposed to the external environment, a disinfection device 8 is installed at the end of the second water pipe 7 away from the second water pump 6 to disinfect the water in the second water pipe 7 through the disinfection device 8, so as to reduce the degree of bacterial contamination of the second water pipe 7 by the external environment, so as to ensure that the hot water flowing out of the second water pipe 7 after disinfection by the disinfection device 8 is cleaner.

[0038] The disinfection device 8 can be at least one of a high temperature disinfection device, an ultraviolet disinfection device, and a plasma disinfection and purification device.

[0039] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, the water dispenser also includes a power supply board 10, and the disinfection device 8 can adopt a high-temperature disinfection device. Specifically, the disinfection device 8 includes a base pipe, an insulating layer 81, a heating structure 82, a fastener and a conductive structure 83 which are sequentially sleeved and connected from the inside to the outside, and the base pipe is sleeved outside the second water pipe 7. The conductive structure 83 includes a conductive ring and a terminal electrically connected to the conductive ring. The two conductive structures 83 are spaced apart along the axial direction of the fastener, and the two conductive rings are electrically connected to different parts of the heating structure 82 respectively, and the power supply board 10 is electrically connected to the two terminal heads.

[0040] It should be noted that the base tube can be a part of the second pipeline 72 in the second water pipe 7, or it can be independent of the second pipeline 72, that is, the base tube is directly sleeved on the outer wall of the second pipeline 72 of the second water pipe 7; and the insulating layer 81 is sleeved on the outside of the base tube, and the heating structure 82 is sleeved on the outside of the insulating layer 81. Since the heating structure 82 is a conductive heating component of the disinfection device 8, the insulating layer 81 can play an insulating isolation role between the heating structure 82 and the base tube, so as to avoid the heating structure 82 burning the base tube after high temperature, causing the water flowing out of the second water pipe 7 to be charged, and correspondingly improve the safety of the disinfection device 8. Among them, the base tube can be a metal tube, or it can be a graphite tube with better thermal conductivity, etc.; and the insulating layer 81 can be an insulating tube made of insulating material, which is not specifically limited here.

[0041] The heating structure 82 may be a cylindrical structure in which a heating wire is wound around the insulating layer 81, so the fastener is used to fix the heating structure 82 on the insulating layer 81 to prevent the heating structure 82 from loosening due to changes in thermal expansion and contraction, so that the heating wire and the insulating layer 81 are more closely connected, thereby ensuring the heating efficiency of the second water pipe 7. The heating structure 82 may be a heating wire or a heating tube made of stainless steel or other materials, and the fastener may be a cylindrical structure made of high temperature resistant mud or other materials with viscosity and high temperature resistance.

[0042] The two conductive structures 83 are sleeved on the outside of the fastener at intervals along the axial direction of the fastener, and the conductive rings in the two conductive structures 83 are electrically connected to different parts of the heating structure 82, and the power board 10 is electrically connected to the wiring heads of the two conductive structures 83, so as to provide working power to the heating structure 82 through the power board 10 through the two conductive structures 83, so that the heating structure 82 is powered on to generate high temperature, such as 120 degrees, to sterilize the water in the second water pipe 7 at high temperature to avoid bacterial and viral contamination. Among them, the conductive structure 83 can be made of conductive material such as copper, and the wiring head can be a terminal post of various shapes, which is not specifically limited here.

[0043] In addition, the power board 10 can be installed on the outside of the water tank 4. If the power board 10 outputs a DC voltage to the heating structure 82, the two conductive structures 83 can be used as the positive and negative wiring parts of the heating structure 82 respectively; if the power board 10 outputs an AC voltage to the heating structure 82, the two conductive structures 83 can be used as the phase line and neutral line wiring parts of the heating structure 82 respectively.

[0044] In one embodiment of the present invention, Figure 3 As shown, the disinfection device 8 further includes a protective cover 84 , and the protective cover 84 is sleeved on the outer side of the conductive structure 83 .

[0045] It should be noted that, by providing a protective cover 84 on the outside of the conductive structure 83, the protective cover 84 can be wrapped around the conductive structure 83, effectively avoiding leakage accidents caused by exposure of the conductive structure 83, thereby improving the safety of the water dispenser.

[0046] The protective cover 84 can be a cylindrical protective structure made of high temperature resistance and insulation performance.

[0047] In one embodiment of the present invention, Figure 1 As shown, the water flow exchanger 2 has a first pipe opening, a second pipe opening and a third pipe opening which are interconnected. The first pipe opening and the second pipe opening are respectively connected to the water inlet ends of the water tank 4 and the second water pump 6, and the water outlet end of the first water pump 1 is connected to the third pipe opening.

[0048] It should be noted that, since the water flow exchanger 2 is installed on the first water pipe 5, the first water pipe 5 can be divided into two sections, and the water flow exchanger 2 has three interconnected pipe openings, which are defined as the first pipe opening, the second pipe opening and the third pipe opening, respectively. The first pipe opening is connected to the water tank 4 through one section of the first water pipe, and the second pipe opening can be connected to the water inlet end of the second water pump 6 through another section of the first water pipe. The water inlet end of the first water pump 1 is connected to the second water pipe 7, and the water outlet end of the first water pump 1 is connected to the third pipe opening of the water flow exchanger 2, so that the residual water in the second water pipe 7 can be pumped into the first water pipe 5 through the third pipe opening, and mixed with the residual water in the first water pipe 5 and then pumped back into the water tank 4, so as to effectively prevent residual water from remaining in the second water pipe 7 and the first water pipe 5 after water collection is completed.

[0049] In one embodiment of the present invention, Figure 2 As shown, the second water pipe 7 includes a first pipeline 71 and a second pipeline 72, the water outlet of the second water pump 6 is connected to the water inlet of the solenoid valve 3 through the first pipeline 71, and the water outlet of the solenoid valve 3 is connected to the second pipeline 72;

[0050] The water inlet end of the first water pump 1 is in communication with the first pipeline 71 .

[0051] It should be noted that, since the solenoid valve 3 is arranged on the second water pipe 7 connected to the water outlet end of the second water pump 6, the solenoid valve 3 can divide the second water pipe 7 into two sections, which can be defined as a first pipeline 71 and a second pipeline 72 respectively, wherein the solenoid valve 3 has a water inlet and a water outlet, and the water outlet pipe of the second water pump 6 can be connected to the water inlet of the solenoid valve 3 through the first pipeline 71, and the water outlet pipe of the solenoid valve 3 is connected to the second pipeline 72. The second pipeline 72 can be equivalent to the water outlet pipe of the water dispenser, that is, the hot water heated by the water dispenser finally flows out from the second pipeline 72.

[0052] Since the water inlet end of the first water pump 1 is connected to the first pipeline 71, when the first water pump 1 is working, the first water pump 1 can pump all the remaining water in the entire second water pipe 7 connected to the first water pump 1 into the water tank 4, thereby further ensuring that no residual water will remain in the second water pipe 7.

[0053] In one embodiment of the present invention, Figure 4 and Figure 5 As shown, the water dispenser further includes a housing 9, the housing 9 includes a cover body 91 and a support seat 92, the first water pump 1, the solenoid valve 3, the water flow exchanger 2, the first water pipe 5 and the second water pump 6 are arranged in the cover body 91, and at least part of the second water pipe 7 is in the cover body 91;

[0054] The support seat 92 is disposed on one side of the cover body 91 and connected to the bottom end of the cover body 91 . The water tank 4 is disposed on the support seat 92 .

[0055] It should be noted that the cover body 91 can be a shell structure with a hollow interior, so that the first water pump 1, the solenoid valve 3, the water flow exchanger 2, the first water pipe 5 and the second water pump 6 can be arranged in the cover body 91 which is a shell structure, so that the above components can be safely protected by the cover body 91. At least part of the second water pipe 7 is in the cover body 91, which can be understood as that part of the second water pipe 7 is in the cover body 91 and the other part is outside the cover body 91, or the entire structure of the second water pipe 7 is in the cover body 91, but a through hole connected to the second water pipe 7 is reserved at the top of the cover body 91, so that the hot water in the water tank 4 flows out from the through hole of the cover body 91 along the second water pipe 7.

[0056] exist Figure 5 In the embodiment, one end of the second water pipe 7 away from the second water pump 6 extends out of the cover body 91, so that when the user receives water, he can determine the water receiving position through the second water pipe 7 extending out of the cover body 91 to avoid scalding.

[0057] The support seat 92 is disposed on one side of the cover body 91, for example, the outside, and the support seat 92 is connected to the bottom end of the outer wall of the cover body 91, so that the support seat 92 and the cover body 91 can constitute the overall shell 9 of the water dispenser, thereby facilitating operations such as transportation and installation. Since the water tank 4 is installed on the support seat 92, the water tank 4 is supported from below by the support seat 92 to improve the installation stability of the water tank 4. Among them, the support seat 92 can adopt the following structure, for example, the support seat 92 is a cylindrical structure with an upper end opening, so that the water tank 4 can be installed at the opening of the support seat 92 from above, or the support seat 92 is an inverted truncated cone structure, so that the water tank 4 can be stably installed on the support seat 92.

[0058] In an embodiment of the present invention, the cover body 91 includes a first shell 911 and a second shell 912 , the first shell 911 is connected to the support seat 92 , and the first shell 911 and the second shell 912 are detachably connected.

[0059] It should be noted that the first shell 911 can be a shell close to the water tank 4, and the second shell 912 can be a shell far away from the water tank 4, wherein the first shell 911 and the second shell 912 can be combined to form a complete cover body 91, so after the first shell 911 and the second shell 912 are assembled, a cavity is formed inside the two, so that the first water pump 1, the solenoid valve 3, the water flow exchanger 2, the circuit board, the first water pipe 5, the second water pump 6 and other related components can be installed in the cavity.

[0060] Since the first shell 911 and the second shell 912 are detachably connected, when the water dispenser fails, the first shell 911 and the second shell 912 can be removed, which correspondingly improves the convenience of maintenance of the water dispenser.

[0061] In one embodiment of the present invention, Figure 6 As shown, the water tank 4 includes a tank cover 41, a tank body 42, a heating structure 43 and a tank base 44. The tank body 42 is a cylindrical structure with two openings. The tank cover 41 and the tank base 44 are respectively arranged at the two openings of the tank body 42, and the heating structure 43 is arranged in the tank body 42 or the tank base 44.

[0062] It should be noted that the box base 44 can be disposed at the opening below the box body 42, and the box body 42 and the box base 44 can form an integral structure to improve the sealing performance between the box body 42 and the box base 44 to prevent water leakage.

[0063] The box cover 41 is detachably connected to the opening above the box body 42, so that the box body 42 can be maintained and cleaned by opening the box cover 41 later. When a certain amount of water is injected into the water tank 4, there is water in both the box base 44 and the box body 42, so the heating structure 43 can be installed in the box body 42 or the box base 44, so that the water in the water tank 4 is heated by the heating structure 43 to become hot water with a certain temperature.

[0064] The heating structure 43 may be a heating plate, or a heating structure of other shapes, which is not specifically limited here.

[0065] In an embodiment of the present invention, the water tank 4 further includes a handle 45 , and the handle 45 is disposed outside the tank cover 41 or the tank body 42 .

[0066] It should be noted that, by providing a handle 45 on the box cover 41 or the box body 42, the user can lift the entire water dispenser by the handle 45, thereby improving the portability of the water dispenser.

[0067] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A water dispenser, characterized in that: The invention comprises a first water pump (1), a water flow exchanger (2), an electromagnetic valve (3), and a water tank (4), a first water pipe (5), a second water pump (6), and a second water pipe (7) which are sequentially connected in the water outlet direction; the water flow exchanger (2) is arranged on the first water pipe (5) and is respectively connected to the water tank (4) and the second water pump (6); the electromagnetic valve (3) is arranged on the second water pipe (7) and is used to control the on and off of the second water pipe (7); the water inlet end and the water outlet end of the first water pump (1) are respectively connected to the second water pipe (7) and the water flow exchanger (2); the first water pump (1) is used to pump the residual water in the second water pipe (7) and the first water pipe (5) into the water tank (4).

2. The water dispenser according to claim 1, characterized in that: It also comprises a disinfection device (8), wherein the disinfection device (8) is arranged at an end of the second water pipe (7) away from the second water pump (6).

3. The water dispenser according to claim 2, characterized in that: It also includes a power supply board (10), and the disinfection device (8) includes a base pipe, an insulating layer (81), a heating structure (82), a fastener and a conductive structure (83) which are sequentially sleeved and connected from the inside to the outside, the base pipe is sleeved outside the second water pipe (7), the conductive structure (83) includes a conductive ring and a terminal electrically connected to the conductive ring, two conductive structures (83) are spaced apart along the axial direction of the fastener, and the two conductive rings are electrically connected to different parts of the heating structure (82), and the power supply board (10) is electrically connected to the two terminal heads.

4. The water dispenser according to claim 3, characterized in that: The disinfection device (8) further comprises a protective cover (84), wherein the protective cover (84) is sleeved on the outside of the conductive structure (83).

5. The water dispenser according to claim 1, characterized in that: The water flow exchanger (2) has a first pipe opening, a second pipe opening and a third pipe opening which are interconnected, the first pipe opening and the second pipe opening being respectively connected to the water tank (4) and the water inlet end of the second water pump (6), and the water outlet end of the first water pump (1) is connected to the third pipe opening.

6. The water dispenser according to claim 1, characterized in that: The second water pipe (7) comprises a first pipeline (71) and a second pipeline (72); the water outlet of the second water pump (6) is connected to the water inlet of the solenoid valve (3) through the first pipeline (71); and the water outlet of the solenoid valve (3) is connected to the second pipeline (72); The water inlet end of the first water pump (1) is in communication with the first pipeline (71).

7. The water dispenser according to claim 1, characterized in that: The invention also comprises a shell (9), wherein the shell (9) comprises a cover body (91) and a support seat (92), wherein the first water pump (1), the solenoid valve (3), the water flow exchanger (2), the first water pipe (5) and the second water pump (6) are arranged in the cover body (91), and at least a part of the second water pipe (7) is located in the cover body (91); The support seat (92) is arranged on one side of the cover body (91) and is connected to the bottom end of the cover body (91); the water tank (4) is arranged on the support seat (92).

8. The water dispenser according to claim 7, characterized in that: The cover body (91) comprises a first shell (911) and a second shell (912); the first shell (911) is connected to the support seat (92); and the first shell (911) and the second shell (912) are detachably connected.

9. The water dispenser according to claim 1, characterized in that: The water tank (4) comprises a tank cover (41), a tank body (42), a heating structure (43) and a tank base (44); the tank body (42) is a cylindrical structure with two openings; the tank cover (41) and the tank base (44) are respectively arranged at the two openings of the tank body (42); and the heating structure (43) is arranged in the tank body (42) or the tank base (44).

10. The water dispenser according to claim 9, characterized in that: The water tank (4) further comprises a handle (45), and the handle (45) is arranged on the tank cover (41) or the tank body (42).

Images