Integrated waterway board

Abstract

The utility model discloses an integrated waterway board which is used for a purifying and heating all-in-one machine, the purifying and heating all-in-one machine comprises a front filter element, an RO filter element, an instant heating body and a heat preservation device, the integrated waterway board is provided with a purified water flowing channel, a purified water flowing channel and a heat preservation water supplementing channel, and the purified water flowing channel is provided with a purified water inlet and a purified water outlet. The purified water inlet is communicated with a water outlet of the front filter element, and the purified water outlet is communicated with a water inlet of the RO filter element; the pure water flow channel is provided with a pure water inlet, a pure water outlet and a pure water replenishing port, the pure water inlet is communicated with a water outlet of the RO filter element, and the pure water outlet is communicated with a water inlet of the instant heating body; the heat preservation water supplementing flow channel communicates with the pure water supplementing opening and is provided with a water supplementing outlet communicating with the heat preservation device. And the purified water inlet, the purified water outlet and the water replenishing outlet are positioned on the same side of the integrated waterway board. The integrated waterway board is compact in structure, space utilization is more reasonable, and flat miniaturization of the heat purification all-in-one machine is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of water purifiers, and particularly to an integrated water circuit board. Background Art

[0002] With the improvement of people's living standards, water purification products are widely used. Due to different drinking habits, some users like to drink normal temperature water, while some users like to drink warm or hot water. Therefore, a combined water purifier and water heater with the functions of preparing normal temperature water, warm water and hot water has emerged as the times require.

[0003] Currently, a relatively popular combined water purifier and water heater among consumers includes a pre-filter, an RO filter, an instant heater and a heat preservation device. The pre-filter and the RO filter are connected in series to double-filter raw water into pure water. There are two flow paths for the pure water discharged from the RO filter. One flow path is to directly discharge it through a normal temperature water pipeline for users to take. The other flow path is to first heat it to hot water through the instant heater, and then the hot water can be directly discharged for users to take. The instant heater and the heat preservation device form a heat preservation loop, so that the hot water of the instant heater can also enter the heat preservation device for heat preservation, and the water in the heat preservation device can return to the instant heater for heating again. Therefore, when the user takes water, the valve can be used to control the RO filter to supply water to the instant heater for heating or control the heat preservation device to supply water to the instant heater for heating to control the heating duration.

[0004] It can be seen that the existing combined water purifier and water heater has many water circuit components including a pre-filter, an RO filter, an instant heater and a heat preservation device, etc. A large number of PE pipes or silicone pipes are required to connect to achieve water circuit connection, diversion, heating, discharge, etc., resulting in many internal wiring pipes of the whole machine, complex and cumbersome assembly, and the risks of missing installation and wrong installation, increasing the installation difficulty and installation man-hours, seriously affecting the assembly efficiency, and the numerous and messy pipes will also make the overall integration of the whole machine low and the volume large.

[0005] To solve the above technical problems, the water circuit system in the water purifier industry has a trend of developing towards integration, and various integrated water circuit boards have emerged as the times require. Many water circuit interfaces are provided on some existing integrated water circuit boards, so that most water circuit components can be directly installed on the water circuit interfaces or connected through the water circuit interfaces. However, the setting positions of the various water circuit interfaces on the integrated water circuit board are not arbitrary. If the setting is unreasonable, it is easy to cause the distribution of each component and pipeline on the water circuit board to be relatively scattered, and increase the thickness and occupied space of the integrated water circuit board, making the overall installation of the integrated water circuit board very inconvenient and affecting the structural compactness of the whole machine. Summary of the Utility Model

[0006] The present application provides an integrated water circuit board to solve the technical problem that the unreasonable arrangement positions of the water circuit interfaces of the current integrated water circuit board result in a large overall thickness, large occupied space, and very inconvenient installation, thereby affecting the structural compactness of the whole machine of the pure-heating integrated machine.

[0007] The technical solution adopted in the present application is as follows:

[0008] An integrated water circuit board for a pure-heating integrated machine, the pure-heating integrated machine includes a pre-filter, an RO filter, an instant heating body, and a heat preservation device. The integrated water circuit board is provided with a clean water flow channel, a pure water flow channel, and a heat preservation makeup water flow channel. The clean water flow channel is provided with a clean water inlet and a clean water outlet. The clean water inlet is communicated with the outlet of the pre-filter, and the clean water outlet is communicated with the inlet of the RO filter. The pure water flow channel is provided with a pure water inlet, a pure water outlet, and a pure water makeup water inlet. The pure water inlet is communicated with the outlet of the RO filter, and the pure water outlet is communicated with the inlet of the instant heating body. The heat preservation makeup water flow channel is communicated with the pure water makeup water inlet and is provided with a makeup water outlet communicated with the heat preservation device. The clean water inlet, the pure water outlet, and the makeup water outlet are located on the same side of the integrated water circuit board.

[0009] The integrated water circuit board provided by the present application further includes the following additional technical features:

[0010] The opening direction of the clean water inlet is arranged perpendicular to the opening direction of the clean water outlet, and the opening direction of the pure water inlet is arranged perpendicular to the opening direction of the pure water outlet.

[0011] The outlet of the pre-filter is communicated with the clean water inlet through a pre-water circuit board. The pre-water circuit board is provided with an outlet insertion tube, and the integrated water circuit board is provided with an inlet insertion tube. The clean water inlet is formed in the inlet insertion tube, and the outlet insertion tube is inserted and communicated with the inlet insertion tube.

[0012] The integrated water circuit board is provided with a first positioning insertion tube. The first positioning insertion tube and the inlet insertion tube are arranged on the same side of the integrated water circuit board and are parallel to each other. The pre-water circuit board is provided with a second positioning insertion tube, and the first positioning insertion tube is inserted and communicated with the second positioning insertion tube.

[0013] The integrated water circuit board is provided with a first positioning portion and a second positioning portion to be fixed on the main machine frame of the pure-heating integrated machine through the first positioning portion and the second positioning portion.

[0014] The first positioning portion, the second positioning portion, and the inlet insertion tube are arranged in a triangular relationship on the integrated water circuit board.

[0015] The integrated water circuit board is provided with a pure water replenishment insertion tube communicating with the pure water replenishment port and a heat preservation replenishment insertion tube communicating with the heat preservation replenishment water flow path. The pure water replenishment insertion tube and the heat preservation replenishment insertion tube are arranged in parallel. The pure heat integrated machine further includes a solenoid valve. The pure water replenishment insertion tube and the heat preservation replenishment insertion tube are respectively inserted and communicated with the inlet and the outlet of the solenoid valve.

[0016] The solenoid valve includes a valve seat and a valve body with an electromagnetic structure built therein. The inlet and the outlet of the solenoid valve are arranged on the valve seat. The valve body is located on the side of the integrated water circuit board where the clean water inlet is provided.

[0017] The pure water flow path is provided with a pure water return port, and the pure water return port is communicated with the fluid path from the pre-filter to the RO filter; a check valve is installed in the pure water return port, and the check valve is configured to make the pure water flow path conduct the fluid path from the pre-filter to the RO filter unidirectionally.

[0018] The pure water flow path is provided with a temperature detection port, and a temperature detection probe for detecting the water temperature in the pure water flow path is installed in the temperature detection port.

[0019] Due to the adoption of the above technical solution, the technical effects achieved by this application at least include:

[0020] 1. In the integrated water circuit board provided by this application, the clean water inlet is connected to the outlet of the pre-filter, and the clean water outlet is connected to the inlet of the RO filter, so that the pre-filter is connected to the RO filter through the clean water flow channel of the integrated water circuit board; the pure water inlet is connected to the outlet of the RO filter, and the pure water outlet is connected to the inlet of the instant heating body, so that the RO filter is connected to the instant heating body through the pure water flow channel of the integrated water circuit board; the heat preservation make-up water flow channel is connected to the pure water make-up water port and is provided with a make-up water outlet connected to the heat preservation device, so that the RO filter is connected to the heat preservation device through the pure water flow channel and the heat preservation make-up water flow channel; therefore, through the clean water flow channel, pure water flow channel, heat preservation make-up water flow channel, clean water inlet, clean water outlet, pure water inlet, pure water outlet, pure water make-up water port, and make-up water outlet integrated on the main body of the integrated water circuit board, the connection and diversion of the water circuit are realized. Compared with the existing connection method through PE pipes or silicone hoses, the integrated water circuit board is highly integrated, with a more reasonable structural design, smaller volume, and more convenient and fast assembly, effectively solving the problems of more internal wiring pipes, low integration, risks of missing installation and misinstallation, large installation difficulty, long installation time, low assembly efficiency, and large overall volume in the existing integrated water purification and heating machine; in addition, by making the clean water inlet, pure water outlet, and make-up water outlet located on the same side of the integrated water circuit board, the integration of multiple water circuit interfaces on the same side of the integrated water circuit board is realized, optimizing the overall structure of the integrated water circuit board and the setting positions of the water circuit interfaces, making the structure of the integrated water circuit board more compact and the space utilization more reasonable, which is beneficial to improving the structural compactness of the integrated water purification and heating machine using the integrated water circuit board and achieving flat and miniaturization.

[0021] 2. As a preferred embodiment of this application, the opening direction of the clean water inlet is arranged perpendicular to the opening direction of the clean water outlet, and the opening direction of the pure water inlet is arranged perpendicular to the opening direction of the pure water outlet. Then, on the basis that the clean water inlet, pure water outlet, and make-up water outlet are located on the same side of the integrated water circuit board, the clean water outlet and the pure water inlet are located in the extending direction of the board structure of the integrated water circuit board, so that the water circuits on the integrated water circuit board extend as much as possible in the length and width directions and reduce the extension in the thickness direction, thereby being thinner and lighter, to improve the structural compactness and the installation space on the main frame of the integrated water purification and heating machine, making the integrated water purification and heating machine more flat and thin.

[0022] 3. As a preferred embodiment of this application, the pre-filter is connected to the clean water inlet through the water outlet insertion tube of the pre-water circuit board and the water inlet insertion tube of the integrated water circuit board, and the water outlet insertion tube and the water inlet insertion tube are directly inserted into each other for connection, eliminating the need to set PE pipes or silicone hoses between the two boards of the pre-water circuit board and the integrated water circuit board to connect the water outlet insertion tube and the water inlet insertion tube, which helps to improve the connection reliability, sealing performance, and service life.

[0023] 4. As a preferred embodiment of the present application, the integrated water circuit board is provided with a first positioning insertion tube. The first positioning insertion tube and the water inlet insertion tube are located on the same side of the integrated water circuit board and arranged in parallel. The front water circuit board is provided with a second positioning insertion tube, and the first positioning insertion tube is inserted into the second positioning insertion tube. During the assembly process of the whole integrated water and heat machine, after one of the front water circuit board and the integrated water circuit board is fixed on the main machine frame, only by inserting the water outlet insertion tube and the water inlet insertion tube into each other and inserting the first positioning insertion tube and the second positioning insertion tube into each other, the other one can be fixed, which improves the convenience of assembly and the reliability of positioning.

[0024] 5. As a preferred embodiment of the present application, the integrated water circuit board is provided with a pure water replenishing insertion tube and a heat preservation replenishing insertion tube. The pure water replenishing insertion tube and the heat preservation replenishing insertion tube are respectively inserted and communicated with the inlet and outlet of the electromagnetic valve, eliminating the need to set a PE tube or a silica gel tube connection between the electromagnetic valve and the integrated water circuit board, which helps to improve the connection reliability, sealing performance and service life.

[0025] 6. As a preferred embodiment of the present application, the pure water flow channel is provided with a pure water return port, and the pure water return port is communicated with the fluid path from the pre-filter to the RO filter, so that a part of the pure water discharged from the RO filter to the pure water flow channel can flow back to the RO filter through the pure water return port, further improving the integration of the integrated water circuit board; a check valve is installed in the pure water return port to make the pure water flow channel conduct the fluid path from the pre-filter to the RO filter unidirectionally, preventing the purified water discharged from the pre-filter from flowing reversely towards the pure water return port. Description of the Drawings

[0026] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0027] Figure 1 is a schematic structural diagram of the integrated water circuit board provided by the embodiment of the present application;

[0028] Figure 2 is a cross-section of the integrated water circuit board provided by the embodiment of the present application Figure 1 ;

[0029] Figure 3 is a cross-section of the integrated water circuit board provided by the embodiment of the present application Figure 2 ;

[0030] Figure 4 is a schematic structural diagram of the front water circuit board provided by the embodiment of the present application;

[0031] Figure 5 is a schematic structural diagram of the assembly component formed by the integrated water circuit board and the front water circuit board provided by the embodiment of the present application;

[0032] Figure 6 This is a schematic structural diagram of an assembly component formed by an integrated water circuit board and a solenoid valve provided in an embodiment of the present application.

[0033] List of components and reference numerals:

[0034] 1 Integrated water circuit board, 11 Clean water flow channel, 111 Clean water inlet, 112 Clean water outlet, 12 Pure water flow channel, 121 Pure water inlet, 122 Pure water outlet, 123 Pure water make-up port, 124 Pure water return port, 125 Temperature detection port, 13 Heat preservation make-up water flow channel, 131 Make-up water outlet, 14 Water inlet insertion tube, 15 First positioning insertion tube, 16 First positioning portion, 17 Second positioning portion, 18 Pure water make-up insertion tube, 19 Heat preservation make-up water insertion tube;

[0035] 2 Front water circuit board, 21 Water outlet insertion tube, 22 Second positioning insertion tube;

[0036] 3 Solenoid valve, 31 Valve seat, 32 Valve body;

[0037] 4 Check valve. Detailed implementation manners

[0038] In order to more clearly explain the overall concept of the present application, the following will be described in detail by way of examples in combination with the accompanying drawings of the specification.

[0039] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0040] In addition, in the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "lateral", "longitudinal", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0041] In the present application, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection, an electrical connection, or a communication; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0042] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] In an embodiment of this application, an integrated water circuit board 1 is provided. For the convenience of description and understanding, the following content provided by this application is all elaborated on the basis of the illustrated product structure. Of course, those skilled in the art can understand that the above structure is only a specific example and schematic description, and cannot constitute a specific limitation on the technical solution provided by this application.

[0044] As Figures 1 to 3 shown, an integrated water circuit board 1 provided by this application is used in a pure and hot integrated machine. The pure and hot integrated machine includes a pre-filter, an RO filter, an instant heating body, and a heat preservation device. The integrated water circuit board 1 is provided with a clean water flow channel 11, a pure water flow channel 12, and a heat preservation make-up water flow channel 13. The clean water flow channel 11 is provided with a clean water inlet 111 and a clean water outlet 112. The clean water inlet 111 is communicated with the outlet of the pre-filter, and the clean water outlet 112 is communicated with the inlet of the RO filter. The pure water flow channel 12 is provided with a pure water inlet 121, a pure water outlet 122, and a pure water make-up water inlet 123. The pure water inlet 121 is communicated with the outlet of the RO filter, and the pure water outlet 122 is communicated with the inlet of the instant heating body. The heat preservation make-up water flow channel 13 is communicated with the pure water make-up water inlet 123 and is provided with a make-up water outlet 131 communicated with the heat preservation device. The clean water inlet 111, the pure water outlet 122, and the make-up water outlet 131 are located on the same side of the integrated water circuit board 1.

[0045] For the integrated water circuit board 1 of the present application, the clean water inlet 111 is communicated with the water outlet of the pre-filter, and the clean water outlet 112 is communicated with the water inlet of the RO filter, so that the pre-filter is communicated through the clean water flow channel 11 of the integrated water circuit board 1, and the clean water filtered by the pre-filter flows into the RO filter through the clean water flow channel 11; the pure water inlet 121 is communicated with the water outlet of the RO filter, and the pure water outlet 122 is communicated with the water inlet of the instant heating body, so that the RO filter is communicated with the instant heating body through the pure water flow channel 12 of the integrated water circuit board 1, and the pure water discharged by the RO filter flows into the instant heating body through the pure water flow channel 12; the heat preservation make-up water flow channel 13 is communicated with the pure water make-up water port 123 and is provided with a make-up water outlet 131 communicated with the heat preservation device, so that the RO filter is communicated with the heat preservation device through the pure water flow channel 12 and the heat preservation make-up water flow channel 13, and the pure water discharged by the RO filter can also flow into the heat preservation device through the pure water flow channel 12 and the heat preservation make-up water flow channel 13, so that a certain amount of water can be stored in the heat preservation device and then the instant heating body can start a circulating heating and heat preservation loop; therefore, through the clean water flow channel 11, the pure water flow channel 12, the heat preservation make-up water flow channel 13, the clean water inlet 111, the clean water outlet 112, the pure water inlet 121, the pure water outlet 122, the pure water make-up water port 123, and the make-up water outlet 131 integrated on the main body of the integrated water circuit board 1, the connection and diversion of the water circuit are realized. Compared with the existing connection method through PE pipes or silicone pipes, the integrated water circuit board 1 is highly integrated, with a more reasonable structure design, a smaller volume, and more convenient and rapid assembly, effectively solving the problems of more internal wiring pipes, low integration degree, risks of missing installation and misinstallation, large installation difficulty, long installation time, low assembly efficiency, and large overall volume of the existing integrated water purifier and instant heater.

[0046] In addition, for the integrated water circuit board 1 of the present application, by making the clean water inlet 111, the pure water outlet 122, and the make-up water outlet 131 located on the same side of the integrated water circuit board 1, the integration of multiple water circuit interfaces on the same side of the integrated water circuit board 1 is realized, and the overall structure of the integrated water circuit board 1 and the setting positions of the water circuit interfaces are optimized, so that the structure of the integrated water circuit board 1 is more compact and the space utilization is more reasonable, which is beneficial to improving the structural compactness of the integrated water purifier and instant heater using the integrated water circuit board 1 and realizing flat and miniaturization. For example, during the overall assembly of the integrated water purifier and instant heater, the side of the integrated water circuit board 1 provided with the clean water inlet 111, the pure water outlet 122, and the make-up water outlet 131 can face the side of the main machine frame, so that the water circuit structures respectively connected to the clean water inlet 111, the pure water outlet 122, and the make-up water outlet 131 can be assembled using the internal space of the main machine frame, occupying less external space of the main machine frame, and the outer shell of the integrated water purifier and instant heater can be tightly assembled to the main machine frame when sleeving the main machine frame, thereby reducing the overall body size.

[0047] As a preferred embodiment of the present application, such as Figure 1As shown, the opening direction of the clean water inlet 111 is arranged perpendicularly to the opening direction of the clean water outlet 112, and the opening direction of the pure water inlet 121 is arranged perpendicularly to the opening direction of the pure water outlet 122. On the basis that the clean water inlet 111, the pure water outlet 122 and the water replenishment outlet 131 are located on the same side of the integrated waterway board 1, the clean water outlet 112 and the pure water inlet 121 are both located in the extension direction of the plate structure of the integrated waterway board 1, so that the waterway on the integrated waterway board 1 extends as much as possible in the length direction and the width direction, and the side of the integrated waterway board 1 away from the clean water inlet 111 basically does not need to be provided with a waterway interface, which helps to reduce the extension in the thickness direction, and then become lighter and thinner, so as to improve the compactness of the structure and the installation space on the main frame of the heat and clean machine, making the heat and clean machine flatter and thinner.

[0048] As a preferred implementation of the present application, Figure 1 , Figure 4 and Figure 5 As shown, the water outlet of the pre-filter is connected to the clean water inlet 111 through the pre-waterway plate 2, the pre-waterway plate 2 is provided with a water outlet plug 21, the integrated waterway plate 1 is provided with a water inlet plug 14, the clean water inlet 111 is formed in the water inlet plug 14, and the water outlet plug 21 is plugged and connected with the water inlet plug 14. It can be understood by those skilled in the art that the pre-filter is connected with the clean water inlet 111 through the water outlet plug 21 of the pre-waterway plate 2 and the water inlet plug 14 of the integrated waterway plate 1, and the water outlet plug 21 and the water inlet plug 14 are directly plugged and connected, which saves the need to set a PE tube or silicone tube between the pre-waterway plate 2 and the integrated waterway plate 1 to connect the water outlet plug 21 and the water inlet plug 14, which helps to improve the connection reliability, sealing and service life.

[0049] As a preferred embodiment, Figure 1 , Figure 4 and Figure 5 As shown, the integrated waterway board 1 is provided with a first positioning plug 15, and the first positioning plug 15 and the water inlet plug 14 are located on the same side of the integrated waterway board 1 and are arranged in parallel, and the front waterway board 2 is provided with a second positioning plug 22, and the first positioning plug 15 is plugged with the second positioning plug 22. It can be understood by those skilled in the art that when the first positioning plug 15 is plugged with the second positioning plug 22, the water outlet plug 21 and the water inlet plug 14 can fix the integrated waterway board 1 and the front waterway board 2 to each other. Therefore, during the assembly process of the heat and water purifier, after one of the front waterway board 2 and the integrated waterway board 1 is fixed on the main frame, it is only necessary to plug the water outlet plug 21 with the water inlet plug 14 and the first positioning plug 15 with the second positioning plug 22, so that the other one of the two can be fixed, which improves the convenience of assembly and the reliability of positioning.

[0050] As a preferred embodiment, as Figure 1 shown, the integrated water circuit board 1 is provided with a first positioning portion 16 and a second positioning portion 17, and is fixed to the main body frame of the pure heat integrated machine through the first positioning portion 16 and the second positioning portion 17. Generally, it is usually necessary to first fixedly install the front water circuit board 2 on the main body frame, then install the integrated water circuit board 1 on the main body frame, and finally complete the docking of each water circuit component with the integrated water circuit board 1. Therefore, on the basis of the integrated water circuit board 1 and the front water circuit board 2 being connected through the water outlet insertion tube 21 and the water inlet insertion tube 14, the integrated water circuit board 1 is positioned and connected to the main body frame through the first positioning portion 16 and the second positioning portion 17, realizing multi-directional fixation of the integrated water circuit board 1, improving the installation stability and the pressure-bearing capacity of the integrated water circuit board 1, so as to more reliably support the flowing water and the connected water circuit components. Specifically, the first positioning portion 16 and the second positioning portion 17 may be provided with positioning holes for screws to pass through and connect with the main body frame.

[0051] Furthermore, as Figure 1 shown, the first positioning portion 16, the second positioning portion 17 and the water inlet insertion tube 14 are arranged in a triangular relationship on the integrated water circuit board 1, so that the integrated water circuit board 1 is triangulated on the main body frame and the front water circuit board 2, forming a stable fixation relationship, effectively improving the installation stability of the integrated water circuit board 1.

[0052] As a preferred implementation manner of the present application, as Figure 1 and Figure 6 shown, the integrated water circuit board 1 is provided with a pure water replenishing insertion tube 18 communicating with the pure water replenishing port 123 and a heat preservation replenishing water insertion tube 19 communicating with the heat preservation replenishing water flow channel 13. The pure water replenishing insertion tube 18 and the heat preservation replenishing water insertion tube 19 are arranged in parallel. The pure heat integrated machine further includes an electromagnetic valve 3. The pure water replenishing insertion tube 18 and the heat preservation replenishing water insertion tube 19 are respectively inserted and communicated with the inlet and the outlet of the electromagnetic valve 3. Specifically, the electromagnetic valve 3 is used to control the communication state of the pure water flow channel 12 and the heat preservation replenishing water flow channel 13. When the electromagnetic valve 3 is powered on, the pure water flow channel 12 and the heat preservation replenishing water flow channel 13 are communicated; when powered off, the pure water flow channel 12 and the heat preservation replenishing water flow channel 13 are cut off. The pure water replenishing insertion tube 18 and the heat preservation replenishing water insertion tube 19 are respectively inserted and communicated with the inlet and the outlet of the electromagnetic valve 3, eliminating the need to arrange a PE tube or a silica gel tube connection between the two plates of the electromagnetic valve 3 and the integrated water circuit board 1, which helps to improve the connection reliability, sealing performance and service life.

[0053] Furthermore, as Figure 1 and Figure 6As shown, the solenoid valve 3 includes a valve seat 31 and a valve body 32 with an electromagnetic structure built therein. The inlet and outlet of the solenoid valve 3 are provided on the valve seat 31, and the valve body 32 is located on the side of the integrated water circuit board 1 where the clean water inlet 111 is provided. Those skilled in the art can understand that the solenoid valve 3 is a relatively large water circuit control component directly assembled on the integrated water circuit board 1, which has a greater impact on the size and installation occupied space of the integrated water circuit board 1. Therefore, in this application, after the solenoid valve 3 is docked with the integrated water circuit board 1, the valve body 32 is located on the side of the integrated water circuit board 1 where the clean water inlet 111 is provided, so that the valve body 32 and the water circuit structures respectively connected to the clean water inlet 111, the pure water outlet 122, and the makeup water outlet 131 are all located on the same side of the integrated water circuit board 1, realizing the functional integration on the same side of the integrated water circuit board 1, thereby making the structure of the integrated water circuit board 1 more compact and the space utilization more reasonable, which is beneficial to improving the structural compactness of the integrated heat and clean water machine using the integrated water circuit board 1 and achieving flat miniaturization. To achieve this effect, preferably, the pure water makeup insertion tube 18 and the heat preservation makeup insertion tube 19 are arranged perpendicular to the clean water inlet 111, and then the pure water makeup insertion tube 18 and the heat preservation makeup insertion tube 19 also extend in the extension direction of the plate body structure of the integrated water circuit board 1, thereby reducing the extension in the thickness direction of the integrated water circuit board 1.

[0054] As a preferred embodiment of the present application, as Figure 1 and Figure 3As shown, the pure water flow channel 12 is provided with a pure water return port 124, and the pure water return port 124 is communicated with the fluid path from the pre-filter to the RO filter; a check valve 4 is installed in the pure water return port 124, and the check valve 4 is configured to make the pure water flow channel 12 conduct the fluid path from the pre-filter to the RO filter unidirectionally. Those skilled in the art can understand that, usually, to ensure that the instant heating body heats the water to a high temperature state in a short time, the purified water filtered out by the RO filter per unit time far exceeds the amount of water required by the instant heating body per unit time. Therefore, to avoid pressure buildup inside the pure water flow channel 12, a part of the purified water filtered out by the RO filter needs to be returned. The pure water flow channel 12 is provided with a pure water return port 124, and the pure water return port 124 is communicated with the fluid path from the pre-filter to the RO filter, so that a part of the purified water discharged from the RO filter to the pure water flow channel 12 can flow back to the RO filter through the pure water return port 124, avoiding pressure buildup inside the pure water flow channel 12 and further improving the integration of the integrated water circuit board 1; a check valve 4 is installed in the pure water return port 124 to make the pure water flow channel 12 conduct the fluid path from the pre-filter to the RO filter unidirectionally, preventing the purified water discharged from the pre-filter from flowing reversely towards the pure water return port 124. Usually, a booster pump for boosting pressure needs to be set in the fluid path from the pre-filter to the RO filter. Therefore, the pure water return port 124 can be communicated upstream of the booster pump, so that the booster pump boosts the pressure of the purified water discharged from the pre-filter and also boosts and pumps the pure water flowing back from the pure water return port 124 into the RO filter.

[0055] As a preferred embodiment of the present application, as Figure 1 and Figure 3 shown, the pure water flow channel 12 is provided with a temperature detection port 125, and a temperature detection probe for detecting the water temperature in the pure water flow channel 12 is installed in the temperature detection port 125 to transmit the water temperature in the pure water flow channel 12 to the control unit of the pure heat integrated machine in real time through the temperature detection probe. Although the temperature detection probe is not shown, a temperature detection probe with a built-in temperature sensor can be selected.

[0056] What is not described in this application can be implemented by adopting or referring to the existing technology.

[0057] Each embodiment in this specification is described in a progressive manner. For the same or similar parts between the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0058] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. An integrated water circuit board for a combined water purification and heating machine, the combined water purification and heating machine comprising a pre-filter, an RO filter, an instant heating body and a heat preservation device, characterized in that, The integrated water circuit board is provided with a purified water flow channel, a pure water flow channel and a heat preservation and makeup water flow channel. The purified water flow channel is provided with a purified water inlet and a purified water outlet. The purified water inlet is communicated with the outlet of the pre-filter, and the purified water outlet is communicated with the inlet of the RO filter. The pure water flow channel is provided with a pure water inlet, a pure water outlet and a pure water makeup water inlet. The pure water inlet is communicated with the outlet of the RO filter, and the pure water outlet is communicated with the inlet of the instant heating body. The heat preservation and makeup water flow channel is communicated with the pure water makeup water inlet and is provided with a makeup water outlet communicated with the heat preservation device. The purified water inlet, the pure water outlet and the makeup water outlet are located on the same side of the integrated water circuit board.

2. The integrated water circuit board according to claim 1, wherein the opening direction of the purified water inlet is arranged perpendicular to the opening direction of the purified water outlet, and the opening direction of the pure water inlet is arranged perpendicular to the opening direction of the pure water outlet.

3. The integrated water circuit board according to claim 1, wherein the outlet of the pre-filter is communicated with the purified water inlet through a pre-water circuit board. The pre-water circuit board is provided with an outlet insertion tube, and the integrated water circuit board is provided with an inlet insertion tube. The purified water inlet is formed in the inlet insertion tube, and the outlet insertion tube is inserted and communicated with the inlet insertion tube.

4. The integrated water circuit board according to claim 3, wherein the integrated water circuit board is provided with a first positioning insertion tube, the first positioning insertion tube and the inlet insertion tube are located on the same side of the integrated water circuit board and are arranged in parallel. The pre-water circuit board is provided with a second positioning insertion tube, and the first positioning insertion tube is inserted into the second positioning insertion tube.

5. The integrated water circuit board according to claim 3, wherein the integrated water circuit board is provided with a first positioning portion and a second positioning portion to be fixed on the main body frame of the integrated water purifier and heater through the first positioning portion and the second positioning portion.

6. The integrated water circuit board according to claim 5, wherein the first positioning portion, the second positioning portion and the inlet insertion tube are arranged in a triangular relationship on the integrated water circuit board.

7. The integrated water circuit board according to claim 1, wherein the integrated water circuit board is provided with a pure water makeup water insertion tube communicated with the pure water makeup water inlet and a heat preservation and makeup water insertion tube communicated with the heat preservation and makeup water flow channel. The pure water makeup water insertion tube and the heat preservation and makeup water insertion tube are arranged in parallel. The integrated water purifier and heater further includes a solenoid valve, and the pure water makeup water insertion tube and the heat preservation and makeup water insertion tube are respectively inserted and communicated with the inlet and the outlet of the solenoid valve.

8. The integrated water circuit board according to claim 7, wherein the solenoid valve includes a valve seat and a valve body with an electromagnetic structure built therein. The inlet and the outlet of the solenoid valve are arranged on the valve seat, and the valve body is located on the side of the integrated water circuit board where the purified water inlet is provided.

9. The integrated water circuit board according to claim 1, wherein The pure water flow channel is provided with a pure water return port, and the pure water return port is communicated with the fluid path from the pre-filter to the RO filter; a check valve is installed in the pure water return port, and the check valve is configured to make the pure water flow channel conduct the fluid path from the pre-filter to the RO filter unidirectionally.

10. The integrated water circuit board according to claim 1, wherein the pure water flow channel is provided with a temperature detection port, and a temperature detection probe for detecting the water temperature in the pure water flow channel is installed in the temperature detection port.

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