Water supply device

Abstract

The invention is suitable for the technical field of water supply equipment, and discloses a water supply device which comprises a first device, a second device and a waterway plate structure, and the waterway plate structure comprises a water supplementing pipeline and a pressure device; the water replenishing pipeline comprises a first branch and a second branch which are communicated with each other, the first branch is communicated with the first device and replenishes water to the first device, and the second branch is communicated with the second device and replenishes water to the second device; the first branch is provided with a pressure device, and when the water inlet pressure of the second branch is larger than that of the first branch or the water level of the second device reaches the preset water level, the pressure device conducts the first branch. According to the water supply device, the waterway plate is high in structural integration degree, and miniaturization development of the water supply device is facilitated.

Description

Technical Field

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

[0002] In order to better meet people's needs, current water supply devices are usually equipped with hot water generating devices (for example, a hot water tank storing heat exchange medium) and cold water generating devices (such as an ice tank). The heat exchange medium in the hot water tank can flow with drinking water in two adjacent and isolated flow channels and exchange heat, so that cold drinking water or normal temperature drinking water can be converted into hot water. The ice tank is used to generate cold water from hot water or normal temperature water. Therefore, the water supply device can supply both hot water and cold water, expanding the scope of use of the water supply device.

[0003] In the related art, the water supply pipeline for replenishing the hot water tank and the water supply pipeline for replenishing the ice tank are intricately installed in the water supply device, making the water supply device too large, and each water supply pipeline is equipped with a switch valve, which further increases the size of the water supply device and is not conducive to the miniaturization development of the water supply device. Summary of the invention

[0004] The present application provides a water supply device, aiming to solve the technical problem that existing devices occupy a large space.

[0005] According to the first aspect of the present application, an embodiment provides a water supply device, including a first device, a second device and a waterway plate structure, wherein the waterway plate structure includes a water supply pipeline and a pressure device;

[0006] The water replenishment pipeline comprises a first branch and a second branch which are connected to each other, the first branch is connected to the first device to replenish water for the first device, and the second branch is connected to the second device to replenish water for the second device;

[0007] The first branch is provided with the pressure device, and when the water inlet pressure of the second branch is greater than the water inlet resistance of the first branch or the water level of the second device reaches a preset water level, the pressure device is connected to the first branch.

[0008] In one embodiment, the pressure device is a one-way valve or a solenoid valve.

[0009] In one embodiment, the water replenishment pipeline is provided with a water replenishment valve, and when the water level of the first device is lower than the lower limit water level or the water level of the second device is lower than the lower limit water level, the water replenishment valve is turned on.

[0010] In one embodiment, when the water level of the first device is not lower than the upper limit water level and / or the water level of the second device is not lower than the upper limit water level, the water replenishment valve is switched from on to off.

[0011] In one embodiment, the waterway plate structure further includes a control valve, which is connected to the second branch, and is used to close the second branch when the water level in the second device reaches a preset water level.

[0012] In one embodiment, the water supply device further includes a water level switch device, which is disposed in the second device and is used to stop replenishing water to the second device when the water level in the second device reaches a preset water level.

[0013] In one embodiment, the first branch includes a first bridge section and a first water replenishment section, and the first water replenishment section is used to connect between the first bridge section and the first device; the second branch includes a second bridge section and a second water replenishment section, and the second water replenishment section is used to connect between the second bridge section and the second device;

[0014] The first bridging section is connected to the second bridging section, and the pressure device is arranged in the first bridging section or in the first water replenishment section.

[0015] In one embodiment, the first device is connected to a first water level sensor, and the first water level sensor is used to detect the water level of the first device; and / or,

[0016] The second device is connected to a second water level sensor, and the second water level sensor is used to detect the water level of the second device.

[0017] In one embodiment, the waterway plate structure further includes a water outlet pipeline;

[0018] The water outlet pipeline is provided with a water outlet portion, a first water inlet portion, a second water inlet portion and a water replenishing portion, the water outlet portion is used to connect to the water use end, the first water inlet portion is used to input normal temperature water, and the second water inlet portion is used to input hot water; the water replenishing portion is located upstream of the water outlet portion and downstream of the first water inlet portion and the second water inlet portion, and the water inlet end of the water replenishing pipeline is connected to the water replenishing portion.

[0019] In one embodiment, the water supply device further includes a heat exchanger, and the heat exchanger is used to allow heat exchange medium and drinking water to flow through simultaneously and in isolation; the first device is a hot water tank, and the second device is an ice tank.

[0020] According to the water supply device of the above embodiment, by setting the water supply pipeline for the first device and the second device on the waterway plate structure, the integration of the water supply pipeline is improved, and the occupied space of the water supply device can be reduced. In addition, the waterway plate structure is also provided with a pressure device. By setting the pressure device in the first branch, the second device can be replenished with water first, and then the first device can be replenished with water. Compared with the technical solution of setting a valve body in each water supply pipeline, the occupied space of the waterway plate structure is reduced, which is conducive to the miniaturization of the water supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a waterway diagram of a water supply device provided in Embodiment 1 of the present invention;

[0023] Figure 2 It is a schematic diagram of the assembly structure of the waterway plate structure, the first device, the heat exchanger and the heater provided in the first embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the assembly structure of the first device, the second device and the heat exchanger provided in the first embodiment of the present invention;

[0025] Figure 4 is a schematic structural diagram of a heat exchanger provided in Embodiment 1 of the present invention;

[0026] Figure 5 This is a structural schematic diagram of a waterway plate structure provided in Embodiment 1 of the present invention from one viewing angle;

[0027] Figure 6 is a structural schematic diagram of the waterway plate structure provided in the first embodiment of the present invention from another perspective;

[0028] Figure 7 It is a top view of the waterway plate structure provided in the first embodiment of the present invention without the first valve body, the second valve body, the third valve body and the water supply valve.

[0029] Description of Figure Numbers:

[0030] 100, waterway plate structure; 100a, first end; 100b, second end; 100c, third end; 100d, fourth end; 10, water supply pipeline; 11, first branch; 111, first bridge section; 112, first water supply section; 12, second branch; 121, second bridge section; 122, second water supply section; 21, pressure device; 22, water supply valve; 23, first valve body; 24, second valve body; 25, third valve body; 26, three-way valve; 27, pump body; 30, water outlet pipeline; 31 , water outlet; 32, first water inlet; 33, second water inlet; 34, water replenishment; 40, water inlet pipeline; 41, water flow input; 42, first water flow output; 43, second water flow output; 50, reflux pipeline; 60, waste water pipeline; 70, recovery pipeline; 200, first device; 300, second device; 400, heat exchanger; 401, drinking water inlet; 402, drinking water outlet; 403, medium inlet; 404, medium outlet; 500, heater.

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0034] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0035] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention. Among them, the dotted line in the accompanying drawings indicates the flow direction of water in the pipeline. The first direction X represents the length direction of the waterway plate structure, the second direction Y represents the width direction of the waterway plate structure, and the third direction Z represents the height direction of the waterway plate structure.

[0036] In order to provide both hot water and cold water, a water supply device is usually provided with a hot water generating device (e.g., a hot water tank) and a cold water generating device (e.g., an ice tank). However, due to limitations of the device, the pipes for replenishing the hot water tank and the ice tank are intricately installed in the water supply device, and each pipe is provided with a switch valve, which results in a large size of the water supply device, which is not conducive to the promotion of the water supply device.

[0037] In view of this, the present invention provides a waterway plate structure and a water supply device. The water supply device includes a waterway plate structure, a first device and a second device. The waterway plate structure includes a first branch for replenishing water for the first device and a second branch for replenishing water for the second device. By arranging the water replenishment pipeline for replenishing water for the first device and the second device on the waterway plate structure, the integration of the water replenishment pipeline is improved, and the occupied space of the water supply device can be reduced. In addition, the waterway plate structure is also provided with a pressure device. By arranging the pressure device on the first branch, the second device can be replenished with water first, and then the first device can be replenished with water. Compared with the technical solution of arranging a valve body in each water replenishment pipeline, the occupied space of the waterway plate structure is reduced, which is conducive to the miniaturization of the water supply device.

[0038] See also Figures 1 to 5 The water supply device provided by the embodiment of the present invention includes a waterway plate structure 100, a first device 200, and a second device 300. The waterway plate structure 100 includes a water replenishment pipeline 10, and the water replenishment pipeline 10 replenishes water for the first device 200 and the second device 300.

[0039] The water supply device also includes a heat exchanger 400, which is used to allow a heat exchange medium and drinking water to flow through simultaneously and in isolation, and to allow the heat exchange medium and drinking water in the heat exchanger 400 to exchange heat. The first device 200 is a hot water tank, in which a heat exchange medium is stored. The hot water tank is connected to the heat exchanger 400 so that the heat exchange medium can flow into the heat exchanger 400 and flow back into the hot water tank. The heat exchange medium is water. Specifically, the heat exchange medium in the hot water tank flows into the heat exchanger 400, exchanges heat with the drinking water in the heat exchanger 400, and then flows back into the hot water tank. The heat exchange medium and drinking water flow along two adjacent and isolated channels in the heat exchanger 400, respectively.

[0040] Specifically, see Figure 4 The heat exchanger 400 is provided with a drinking water channel (not shown), a drinking water inlet 401, a drinking water outlet 402, a medium channel (not shown), a medium inlet 403 and a medium outlet 404. The drinking water channel and the medium channel are adjacent and isolated. The drinking water inlet 401 and the drinking water outlet 402 are respectively connected to the drinking water channel, and the medium inlet 403 and the medium outlet 404 are respectively connected to the medium channel. The drinking water channel is used for drinking water to flow through, the medium channel is used for heat exchange medium to flow through, and the hot water tank is connected to the medium channel.

[0041] In one embodiment, the second device 300 is an ice bladder, which is used to cool the water flowing through it. In a specific application, the ice bladder can be connected to a water end to deliver cold water to the water end. Thus, the water supply device can provide cold water.

[0042] See also Figure 3 , Figures 5 to 7 The waterway plate structure 100 includes a water replenishment pipeline 10, which includes a first branch 11 and a second branch 12 that are connected to each other. The first branch 11 is connected to the first device 200 and is used to replenish water for the first device 200; the second branch 12 is connected to the second device 300 and is used to replenish water for the second device 300.

[0043] By arranging the first branch 11 for replenishing water for the first device 200 and the second branch 12 for replenishing water for the second device 300 on the waterway plate structure 100, compared with installing the pipes for replenishing water for different devices in a complicated manner in the water supply device, the integration of the first branch 11 and the second branch 12 is improved, making the internal structure of the water supply device more concise, and effectively reducing the occupied space of the water supply device, which is conducive to the miniaturization of the water supply device.

[0044] See also Figures 1 to 5The waterway plate structure 100 further includes a pressure device 21. The first branch 11 is provided with the pressure device 21. When the water inlet pressure of the second branch 12 is greater than the water inlet resistance of the first branch 11 or the water level of the second device 300 reaches a preset water level, the pressure device 21 is connected to the first branch 11. Specifically, the pressure in the first branch 11 is greater than the pressure in the second branch 12, and the water flows through the second branch 12 to replenish the second device 300 with water. When the pressure in the second branch 12 is greater than the resistance of the first branch 11, the pressure device 21 is connected to the first branch 11, and the water flows through the first branch 11 to replenish the first device 200 with water. Alternatively, when the water level of the second device 300 reaches a preset water level, the water is stopped from being transported to the second device 300, and the pressure device 21 is connected to the first branch 11, and the water flows through the first branch 11 to replenish the first device 200 with water. In this way, it is possible to avoid providing valve bodies in both the first branch 11 and the second branch 12 to control the waterway, thereby greatly reducing the space occupied by the waterway plate structure 100 and facilitating the miniaturization of the water supply device.

[0045] In one embodiment, when the second device 300 is filled with water, the water inlet pressure of the second branch 12 is greater than the water inlet resistance of the first branch 11. The pressure device 21 conducts the first branch 11, and water flows through the first branch 11 to replenish the first device 200 with water.

[0046] As an embodiment, the pressure device 21 is a one-way valve. The structure is simple and the setting is convenient. In addition, the pressure device 21 is set as a one-way valve, and the water in the first device 200 cannot flow to the second device 300. The first device 200 is a hot water tank, and the second device 300 is an ice tank. In this way, the hot water in the hot water tank can be prevented from flowing to the ice tank, thereby increasing the energy consumption of the ice tank. It can be understood that in other embodiments, the pressure device 21 can also be a solenoid valve.

[0047] See also Figure 1 , Figure 5 and Figure 6 The water replenishment pipeline 10 is provided with a water replenishment valve 22. When the water level of the first device 200 is lower than the lower limit water level or the water level of the second device 300 is lower than the lower limit water level, the water replenishment valve 22 is turned on. That is, the water replenishment valve 22 is the main switch valve of the water replenishment pipeline 10. When the water level of the first device 200 is lower than its lower limit water level, it indicates that the water body in the first device 200 is less and water replenishment is required, or when the water level of the second device 300 is lower than its lower limit water level, it indicates that the water body in the second device 300 is less and water replenishment is required. At this time, the water replenishment valve 22 is turned on. In specific applications, whether the water level of the first device 200 is lower than its lower limit water level or the water level of the second device 300 is lower than its lower limit water level, it indicates that the water replenishment valve 22 is turned on.

[0048] In one embodiment, when the water level of the first device 200 is not lower than the upper limit water level or / and the water level of the second device 300 is not lower than the upper limit water level, the water replenishment valve 22 is switched from on to off. That is, when the water level of the first device 200 reaches its upper limit water level, it can be prompted that the water in the first device 200 is sufficient and no water replenishment is needed, and the water replenishment valve 22 can be closed; or, when the water level of the second device 300 reaches its upper limit water level, it can be prompted that the water in the second device 300 is sufficient and no water replenishment is needed, and the water replenishment valve 22 can be closed; or, when the water levels of the first device 200 and the second device 300 both reach their upper limit water levels, it can be prompted that no water replenishment is needed, and the water replenishment valve 22 can be closed. In this embodiment, the upper limit level of the first device 200 can be that the first device 200 is full of water, or the first device 200 is not full of water, and the upper limit level of the second device 300 is that the second device 300 is full of water.

[0049] In specific implementation, when the water level of the first device 200 is lower than its lower limit water level or the water level of the second device 300 is lower than its lower limit water level, the water replenishment valve 22 is turned on, the water inlet resistance of the first branch 11 is greater than the water inlet resistance of the second branch 12, and the water flows to the second branch 12 to replenish water for the second device 300. When the second device 300 is filled with water, the water inlet pressure of the second branch 12 is greater than the water inlet resistance of the first branch 11, the pressure device 21 is turned on the first branch 11, and the water flows to the first branch 11 to replenish water for the first device 200. When the water level in the first device 200 reaches its upper limit, the water replenishment valve 22 is closed. Among them, the first device 200 can be filled with water or not.

[0050] In one embodiment, the first device 200 is connected to a first water level sensor, and the second device 300 is connected to a second water level sensor. The first water level sensor is used to detect the water level of the first device 200 , and the second water level sensor is used to detect the water level of the second device 300 .

[0051] In specific implementation, when the first water level sensor detects that the water level of the first device 200 is lower than its lower limit, or when the second water level sensor detects that the water level of the second device 300 is lower than its lower limit, the water replenishment valve 22 is turned on, so that the water replenishment pipeline 10 replenishes water for the first device 200 and / or the second device 300. When the first water level sensor detects that the water level of the first device 200 is not lower than its upper limit, and / or when the second water level sensor detects that the water level of the second device 300 is not lower than its upper limit, the water replenishment valve 22 is switched from on to off.

[0052] In one embodiment, the first water level sensor and the second water level sensor are integrated into the waterway plate structure 100. In this way, the integration degree of the waterway plate structure 100 can be improved.

[0053] See also Figure 5The first branch 11 includes a first bridge section 111 and a first water replenishment section 112, and the first water replenishment section 112 is connected between the first bridge section 111 and the first device 200. The second branch 12 includes a second bridge section 121 and a second water replenishment section 122, and the second water replenishment section 122 is connected between the second bridge section 121 and the second device 300. The first bridge section 111 and the second bridge section 121 are connected to each other, so that the first branch 11 and the second branch 12 are connected. In one embodiment, the pressure device 21 is disposed in the first bridge section 111. Of course, the pressure device 21 can also be disposed in the first water replenishment section 112.

[0054] Specifically, the second water replenishment section 122 extends along the first direction X, the first bridge section 111 and the second bridge section 121 are coaxially arranged and extend along the second direction Y, and the first water replenishment section 112 extends along the third direction Z. The first device 200 is arranged below the waterway plate structure 100, and the end of the first water replenishment section 112 away from the first bridge section 111 extends to the bottom of the waterway plate structure 100, so that the end of the first water replenishment section 112 away from the first bridge section 111 is convenient to be connected to the first device 200. The coaxial arrangement of the first bridge section 111 and the second bridge section 121 facilitates the first bridge section 111 and the second bridge section 121 to be formed in the waterway plate structure 100.

[0055] The waterway plate structure 100 has a first end 100a and a second end 100b that are oppositely disposed along the first direction X, and has a third end 100c and a fourth end 100d that are oppositely disposed along the second direction Y. The first bridging section 111 extends from the second bridging section 121 toward a direction close to the third end 100c, the second bridging section 121 extends from the first bridging section 111 toward a direction close to the fourth end 100d, and the water outlet end of the second water replenishment section 122 is opened at the first end 100a of the waterway plate structure 100.

[0056] Please refer to body 4, Figure 5 and Figure 7 The water circuit board structure 100 also includes a water outlet pipeline 30, which is provided with a water outlet portion 31, a first water inlet portion 32 and a second water inlet portion 33. The water outlet portion 31 is used to connect to the water use end, the first water inlet portion 32 is used to input normal temperature water, and the second water inlet portion 33 is used to input hot water. Among them, the second water inlet portion 33 is connected to the drinking water outlet 402 of the heat exchanger 400. By arranging the water outlet pipeline 30 in the water circuit board structure 100, the integration of the water circuit board structure 100 is improved, which is conducive to reducing the occupied space of the water supply device. In this embodiment, the water outlet pipeline 30 can output both hot water and normal temperature water. In this embodiment, normal temperature water refers to water that has not been cooled or heated and whose temperature is maintained at normal temperature.

[0057] The water outlet pipeline 30 is also provided with a water replenishment portion 34, which is located upstream of the water outlet portion 31 and downstream of the first water inlet portion 32 and the second water inlet portion 33. The water inlet end of the water replenishment pipeline 10 is connected to the water replenishment portion 34, that is, one end of the first bridge section 111 connected to the second bridge section 121 and one end of the second bridge section 121 connected to the first bridge section 111 are both connected to the water replenishment portion 34. In this way, the water flow of the water outlet pipeline 30 can flow into the water replenishment pipeline 10, and then replenish water for the first device 200 and the second device 300. Since the water outlet pipeline 30 can output both hot water and normal temperature water, it can replenish hot water for the first device 200 and the second device 300, and replenish normal temperature water for the first device 200 and the second device 300. Of course, in other embodiments, the water outlet pipeline 30 may not be provided with a water replenishment portion 34, and the replenishment pipeline may transport water to it through other pipelines.

[0058] In one embodiment, the first water inlet portion 32 is disposed downstream of the second water inlet portion 33. In this way, the first water inlet portion 32, the water outlet portion 31 and the water replenishment portion 34 are all disposed downstream of the second water inlet portion 33, and the second water inlet portion 33 can be disposed at the end of the water outlet pipe 30, so that hot water can flow through the entire water outlet pipe 30, thereby achieving sterilization of the water outlet pipe 30.

[0059] Among them, the water outlet pipe 30 extends along the first direction X, the water outlet portion 31 of the water outlet pipe 30 is opened at the first end 100a of the waterway plate structure 100, and the water outlet portion 31, the water replenishment portion 34, the first water inlet portion 32 and the second water inlet portion 33 are sequentially formed in the water outlet pipe 30 along the direction from the first end 100a to the second end 100b.

[0060] See also Figures 5 to 7 The waterway plate structure 100 also includes a first valve body 23 , which is connected between the water outlet portion 31 and the water replenishment portion 34 and is used to control the on-off of the water outlet pipeline 30 .

[0061] In specific implementation, when the water supply valve 22 is opened and the first valve body 23 is closed, the water outlet pipeline 30 is connected to the water supply pipeline 10 and is disconnected from the water use end, so that the water flow in the water outlet pipeline 30 is transported to the water supply pipeline 10; when the water supply valve 22 is closed and the first valve body 23 is opened, the water outlet pipeline 30 is connected to the water use end and is disconnected from the water supply pipeline 10, so that the water flow in the water outlet pipeline 30 can be transported to the water use end.

[0062] In one embodiment, the water replenishment valve 22 and the first valve body 23 are both disposed above the water outlet pipe 30. In this way, the height space of the waterway plate structure 100 is fully utilized, the integration of the waterway plate structure 100 is increased, and the occupied space of the waterway plate structure 100 is reduced.

[0063] The waterway plate structure 100 also includes a water inlet pipeline 40, which is provided with a water flow input portion 41, a first water flow output portion 42, and a second water flow output portion 43. The water flow input portion 41 is used to connect to a water source, the first water flow output portion 42 is used to connect to the first water inlet portion 32, and the second water flow output portion 43 is used to connect to a drinking water inlet 401 of a heat exchanger 400. By providing the water inlet pipeline 400 in the waterway plate structure 100, the integration of the waterway plate structure 100 is improved, which is conducive to reducing the occupied space of the water supply device. In this embodiment, the water inlet pipeline 40 can not only transport normal temperature water to the water outlet pipeline 30, but also transport normal temperature water (drinking water) to the heat exchanger 400.

[0064] Specifically, the water inlet pipe 40 extends along the first direction X, the water flow input portion 41 of the water inlet pipe 40 is opened at the first end 100a of the waterway plate structure 100, and the water flow input portion 41, the first water flow output portion 42 and the second water flow output portion 43 are sequentially formed in the water inlet pipe 40 along the direction from the first end 100a to the second end 100b.

[0065] See also Figures 4 to 6 The waterway plate structure 100 also includes a second valve body 24 and a third valve body 25. The second valve body 24 is used to control the connection or disconnection between the water inlet pipeline 40 and the water outlet pipeline 30, and the third valve body 25 is used to control the connection or disconnection between the water inlet pipeline 40 and the heat exchanger 400.

[0066] During specific implementation, when the second valve body 24 is opened and the third valve body 25 is closed, the water inlet pipeline 40 is connected to the water outlet pipeline 30 and is disconnected from the heat exchanger 400, thereby realizing the delivery of normal temperature water to the water outlet pipeline 30; when the second valve body 24 is closed and the third valve body 25 is opened, the water inlet pipeline 40 is connected to the heat exchanger 400 and is disconnected from the water outlet pipeline 30, thereby realizing the provision of drinking water to the heat exchanger 400.

[0067] In one embodiment, the second valve body 24 and the third valve body 25 are both disposed above the water inlet pipe 40. This arrangement fully utilizes the space of the waterway plate structure 100 in the thickness direction, improves the integration of the waterway plate structure 100, and helps reduce the occupied space of the waterway plate structure 100.

[0068] The water circuit board structure 100 also includes a return pipe 50 and a waste water pipe 60. The return pipe 50 is used to connect the water end and the waste water pipe 60, and discharge the water flow from the water end to the waste water pipe 60. The waste water pipe 60 is used to discharge waste water. In the related art, when changing from one water supply mode to another water supply mode, since a certain amount of water of the previous water supply mode is stored in the pipe at the water end, it is necessary to release the water of this part from the water end before the water of the changed water supply mode is supplied. For example, when changing from the hot water supply mode (the water outlet pipe 30 delivers hot water to the water end) to the normal temperature water supply mode (the water outlet pipe 30 delivers normal temperature water to the water end), since a certain amount of hot water is stored in the pipe at the water end, it is necessary to release the hot water of this part from the water end before the normal temperature water is supplied, which brings a bad user experience. By providing the return pipe 50 and the wastewater pipe 60, when the water supply mode is changed, the water in the previous water supply mode can flow back into the return pipe 50 and then be discharged through the wastewater pipe 60. There is no need to discharge the water in the previous water supply mode from the water use end, which greatly improves the user experience.

[0069] In this embodiment, by providing the return pipe 50 and the waste water pipe 60 on the waterway plate structure 100 , the integration of the waterway plate structure 100 is improved, which is beneficial to reducing the occupied space of the water supply device.

[0070] The return pipe 50 and the waste water pipe 60 both extend along the first direction X, and the water inlet end of the return pipe 50 and the water outlet end of the waste water pipe 60 are both formed at the first end 100 a of the waterway plate structure 100 .

[0071] See also Figure 6 and Figure 7 The waterway plate structure 100 further includes a pump body 27, which is connected to the wastewater pipeline 60 and is used to provide power for the flow of water in the wastewater pipeline 60. In a specific application, when the water supply mode is changed, the pump body 27 can be turned on to suck the water at the water end back into the wastewater pipeline 60.

[0072] In this embodiment, the water inlet pipeline 40, the water outlet pipeline 30, the return pipeline 50 and the waste water pipeline 60 are arranged side by side, and are arranged adjacent to each other in sequence along the direction from the fourth end 100d to the third end 100c. The water flow input part 41 of the water inlet pipeline 40, the water outlet part 31 of the water outlet pipeline 30, the water inlet end of the return pipeline 50 and the water outlet end of the waste water pipeline 60 are all formed at the first end 100a of the waterway plate structure 100. The water replenishment pipeline 10 is arranged below the water inlet pipeline 40, the water outlet pipeline 30, the return pipeline 50 and the waste water pipeline 60. Such an arrangement improves the regularity of the waterway plate structure 100, is conducive to reducing the occupied space of the waterway plate structure 100, and is convenient for connecting the waterway plate structure 100 with other equipment.

[0073] The waterway plate structure 100 further includes a recovery pipeline 70, which is connected between the first device 200 and the wastewater pipeline 60. In a specific application, when the heat exchange medium in the first device 200 needs to be discharged (for example, the water supply device is not used for a long time), the heat exchange medium in the first device 200 can be transported to the wastewater pipeline 60 through the recovery pipeline 70, and then discharged. Specifically, the recovery pipeline 70 extends along the third direction, and one end of the recovery pipeline 70 away from the wastewater pipeline 60 is arranged below the waterway plate structure 100, so as to be connected to the first device 200.

[0074] See also Figure 5 and Figure 7 The waterway plate structure 100 further includes a three-way valve 26, one water inlet of the three-way valve 26 is connected to the return pipeline 50, the other water inlet of the three-way valve 26 is connected to the recovery pipeline 70, and the water outlet of the three-way valve 26 is connected to the wastewater pipeline 60. The three-way valve 26 can be used to control the return pipeline 50 to be connected to the three-way valve 26, or the recovery pipeline 70 to be connected to the three-way valve 26. Of course, in other embodiments, switch valves can also be respectively provided in the return pipeline 50 and the recovery pipeline 70.

[0075] In one embodiment, the pipelines of the waterway plate structure 100 are integrally formed, so as to improve the sealing performance of the connection between the pipelines and prevent water leakage of the pipelines.

[0076] See also Figure 2 and Figure 4 The water supply device further includes a heater 500, which is disposed downstream of the heat exchanger 400 and is used to heat the drinking water from the heat exchanger 400. Specifically, the water inlet end of the heater 500 is connected to the drinking water outlet 402 of the heat exchanger 400, and the water outlet end of the heater 500 is connected to the second water inlet portion 33 of the water outlet pipeline 30. By arranging the heat exchanger 400 and the heater 500 to heat the drinking water, the heating effect of the drinking water can be improved, and a large flow of drinking hot water can be achieved. The drinking hot water does not need to be heated and stored in advance, that is, the water outlet is "fresh" hot water. Of course, in other embodiments, the water supply device may not be provided with a heater 500.

[0077] When a water supply device is used to provide hot water to the water-using end, the first valve body 23 and the third valve body 25 are controlled to be opened, and the water supply valve 22 and the second valve body 24 are closed. Normal temperature water flows into the water inlet pipe 40 through the water flow input portion 41 of the water inlet pipe 40, and then flows to the heat exchanger 400 and the heater 500 through the second water flow output portion 43 of the water inlet pipe 40. After hot water is generated, it flows into the water outlet pipe 30 through the second water inlet portion 33 of the water outlet pipe 30, and flows to the water-using end through the water outlet portion 31 of the water outlet pipe 30.

[0078] When a water supply device is used to provide hot water for the first device 200 and the second device 300, the water replenishment valve 22 and the third valve body 25 are controlled to be open, and the first valve body 23 and the second valve body 24 are closed. Normal temperature water flows into the water inlet pipe 40 through the water flow input part 41 of the water inlet pipe 40, and then flows to the heat exchanger 400 and the heater 500 through the second water flow output part 43 of the water inlet pipe 40. After hot water is generated, it flows into the water outlet pipe 30 through the second water inlet part 33 of the water outlet pipe 30, and flows to the second branch 12 through the water replenishment part 34 of the water outlet pipe 30 to replenish water for the second device 300. When the second device 300 is filled with water or the second device 300 is replenished with water to a preset water level, the water flows along the first branch 11 to replenish water for the first device 200.

[0079] When a water supply device is used to provide normal temperature water to the water-using end, the first valve body 23 and the second valve body 24 are controlled to be open, the water supply valve 22 and the third valve body 25 are closed, and the normal temperature water flows into the water inlet pipe 40 through the water flow input part 41 of the water inlet pipe 40, and then flows into the water outlet pipe 30 through the first water flow output part 42 of the water inlet pipe 40 and the first water inlet part 32 of the water outlet pipe 30, and flows to the water-using end through the water outlet part 31 of the water outlet pipe 30.

[0080] When a water supply device is used to provide normal temperature water for the first device 200 and the second device 300, the water replenishment valve 22 and the second valve body 24 are controlled to be open, and the first valve body 23 and the third valve body 25 are closed. Normal temperature water flows into the water inlet pipe 40 through the water flow input part 41 of the water inlet pipe 40, and then flows into the water outlet pipe 30 through the first water flow output part 42 of the water inlet pipe 40 and the first water inlet part 32 of the water outlet pipe 30, and flows to the second branch 12 through the water replenishment part 34 of the water outlet pipe 30 to replenish water for the second device 300. When the second device 300 is filled with water or the second device 300 is replenished with water to a preset water level, the water flows along the first branch 11 to replenish water for the first device 200.

[0081] Embodiment 2:

[0082] The water supply device provided in this embodiment is different from that in the first embodiment in that the pressure device 21 conducts the first branch 11 in a different manner. Specifically, in the first embodiment, when the second device 300 is filled with water, the water inlet pressure of the second branch 12 is greater than the water inlet resistance of the first branch 11, and the pressure device 21 conducts the first branch 11; while in this embodiment, the second branch 12 is closed when the water level in the second device 300 reaches a preset water level by setting a control valve, and the pressure device 21 conducts the first branch 11.

[0083] Specifically, the waterway plate structure 100 further includes a control valve, which is connected to the second branch 12. The control valve is used to close the second branch 12 when the water level in the second device 300 reaches a preset water level. At this time, the pressure device 21 conducts the first branch 11 to replenish water for the first device 200. When the water level in the second device 300 reaches the preset water level, the second device 300 may be filled with water or not. The preset water level is the upper limit water level of the second device 300.

[0084] In addition to the above differences, the water supply device and its accessory components provided in this embodiment can be designed with reference to the first embodiment and will not be described here again.

[0085] Embodiment three:

[0086] The water supply device provided in this embodiment is different from that in the first embodiment in that the pressure device 21 conducts the first branch 11 in a different manner. Specifically, in the first embodiment, when the second device 300 is filled with water, the water inlet pressure of the second branch 12 is greater than the water inlet resistance of the first branch 11, and the pressure device 21 conducts the first branch 11; while in this embodiment, the second branch 12 is closed when the water level in the second device 300 reaches a preset water level by setting a water level switch device, and the pressure device 21 conducts the first branch 11.

[0087] Specifically, the water supply device further includes a water level switch device, which is disposed in the second device 300, and the water level switch device is used to stop replenishing water to the second device 300 when the water level in the second device 300 reaches a preset water level. When the water level in the second device 300 reaches the preset water level, the second device 300 may be filled with water or may not be filled with water, and the preset water level is the upper limit water level of the second device 300.

[0088] In addition to the above differences, the water supply device and its accessory components provided in this embodiment can be designed with reference to the first embodiment and will not be described here again.

[0089] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A water supply device, characterized in that: It includes a first device, a second device and a waterway plate structure, wherein the waterway plate structure includes a water supply pipeline and a pressure device; The water replenishment pipeline comprises a first branch and a second branch which are connected to each other, the first branch is connected to the first device to replenish water for the first device, and the second branch is connected to the second device to replenish water for the second device; The first branch is provided with the pressure device, and when the water inlet pressure of the second branch is greater than the water inlet resistance of the first branch or the water level of the second device reaches a preset water level, the pressure device is connected to the first branch.

2. The water supply device according to claim 1, characterized in that: The pressure device is a one-way valve or a solenoid valve.

3. The water supply device according to claim 1, characterized in that: The water replenishment pipeline is provided with a water replenishment valve, and when the water level of the first device is lower than the lower limit water level or the water level of the second device is lower than the lower limit water level, the water replenishment valve is turned on.

4. The water supply device according to claim 3, characterized in that: When the water level of the first device is not lower than the upper limit water level and / or the water level of the second device is not lower than the upper limit water level, the water supply valve is switched from on to off.

5. The water supply device according to claim 1, characterized in that: The waterway plate structure further includes a control valve, which is connected to the second branch and is used to close the second branch when the water level in the second device reaches a preset water level.

6. The water supply device according to claim 1, characterized in that: The water supply device further comprises a water level switch device, which is arranged in the second device and is used for stopping water replenishment to the second device when the water level in the second device reaches a preset water level.

7. The water supply device according to claim 1, characterized in that: The first branch includes a first bridge section and a first water replenishment section, and the first water replenishment section is used to connect between the first bridge section and the first device; the second branch includes a second bridge section and a second water replenishment section, and the second water replenishment section is used to connect between the second bridge section and the second device; The first bridging section is connected to the second bridging section, and the pressure device is arranged in the first bridging section or in the first water replenishment section.

8. The water supply device according to claim 1, characterized in that: The first device is connected to a first water level sensor, and the first water level sensor is used to detect the water level of the first device; and / or, The second device is connected to a second water level sensor, and the second water level sensor is used to detect the water level of the second device.

9. The water supply device according to claim 1, characterized in that: The waterway plate structure also includes a water outlet pipeline; The water outlet pipeline is provided with a water outlet portion, a first water inlet portion, a second water inlet portion and a water replenishing portion, the water outlet portion is used to connect to the water use end, the first water inlet portion is used to input normal temperature water, and the second water inlet portion is used to input hot water; the water replenishing portion is located upstream of the water outlet portion and downstream of the first water inlet portion and the second water inlet portion, and the water inlet end of the water replenishing pipeline is connected to the water replenishing portion.

10. The water supply device according to any one of claims 1 to 9, characterized in that: The water supply device further comprises a heat exchanger, wherein the heat exchanger is used to allow heat exchange medium and drinking water to flow through simultaneously and in isolation; The first device is a hot water tank, and the second device is an ice tank.

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