Water purifier

Abstract

The invention discloses a water purifier, and relates to the technical field of water purification, the water purifier is provided with a hot water outlet, and the water purifier comprises a shell, a hot tank and a diaphragm pump; the hot tank is arranged in the shell and is provided with a water storage cavity; the diaphragm pump is arranged in the shell, a water inlet of the diaphragm pump is communicated with the water outlet side of the water storage cavity, a water outlet of the diaphragm pump is communicated with the hot water outlet, and the diaphragm pump is used for pumping hot water in the water storage cavity to the hot water outlet to discharge water; the diaphragm pump is arranged at the bottom of the hot tank, or the diaphragm pump is arranged on one side of the hot tank. According to the water purifier, the layout flexibility of the diaphragm pump can be improved.

Description

Technical Field

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

[0002] The existing water purifiers with clean and hot water functions mainly use centrifugal water pumps to discharge the water in the hot tank for users. Since the centrifugal pump itself has no self-priming ability, it must be placed at the bottom of the hot tank to ensure that the water entering the centrifugal pump has a certain pressure to prevent empty pumping. However, this installation method limits the layout flexibility of the internal structure of the equipment to a certain extent. Secondly, the centrifugal pump has a high speed and is more sensitive to pressure, which makes its flow accuracy in the clean heat system poor. In order to ensure the flow accuracy, it is necessary to add an additional heat-resistant flow meter to feedback the flow information and adjust the water pump speed in real time, which not only increases the cost of the equipment, but also makes the system more complicated. In addition, the hot tank must be provided with a larger exhaust port to ensure that the hot tank is connected to the atmosphere to avoid vacuum in the tank after the water is discharged, resulting in too low water pressure in the pump inlet and empty pumping. However, the presence of a larger exhaust port greatly reduces the thermal insulation performance of the hot tank, so that the equipment needs to consume more energy to maintain the water temperature. Summary of the invention

[0003] The main purpose of the present invention is to provide a water purifier, aiming to solve at least one problem raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides a water purifier, which has a hot water outlet, and the water purifier includes a shell, a hot tank and a diaphragm pump; the hot tank is arranged in the shell, and the hot tank has a water storage chamber; the diaphragm pump is arranged in the shell, the water inlet of the diaphragm pump is connected to the water outlet side of the water storage chamber, the water outlet of the diaphragm pump is connected to the hot water outlet, and the diaphragm pump is used to pump the hot water in the water storage chamber to the hot water outlet for water discharge; the diaphragm pump is arranged at the bottom of the hot tank, or the diaphragm pump is arranged on one side of the hot tank.

[0005] In one embodiment, the water purifier further comprises a mounting seat, the mounting seat is connected to the housing, and the hot tank and the diaphragm pump are arranged on the mounting seat.

[0006] In one embodiment, the diaphragm pump is located on the front side of the hot tank.

[0007] In one embodiment, a hot water outlet is provided at the bottom of the water storage chamber, and the water inlet of the diaphragm pump is connected to the hot water outlet via a pipeline.

[0008] In one embodiment, the hot tank is provided with a water level detection assembly, the water level detection assembly includes a low water level detection component, a middle water level detection component and a high water level detection component, and the water level monitoring assembly is used to detect the water level in the water storage chamber.

[0009] In one embodiment, the diaphragm pump includes a pump body, a pump cover and a fluid control plate sandwiched between the pump body and the pump cover, the pump cover is provided with a water inlet and a water outlet, the pump cover and the fluid control plate cooperate to form an isolated water inlet chamber and a water outlet chamber, the water inlet chamber is connected to the water inlet, and the water outlet chamber is connected to the water outlet; the diaphragm pump also includes a diaphragm assembly, the diaphragm assembly has a pump chamber, the water inlet chamber and the water outlet chamber are connected through the pump chamber.

[0010] In one embodiment, the fluid control plate is provided with a mounting boss on one side of the water inlet chamber, and the mounting boss is provided with a plurality of first water passing holes and an umbrella valve mounting hole, the plurality of first water passing holes connect the water inlet chamber and the pump chamber, the plurality of first water passing holes are arranged at intervals along the circumference of the mounting boss and are arranged in a ring shape, the umbrella valve mounting hole is used to install an umbrella valve, and the umbrella valve is used to open or cover the plurality of first water passing holes.

[0011] In one embodiment, the plurality of first water holes are in the shape of waist-shaped holes or fan-shaped holes.

[0012] In one embodiment, the fluid control plate is provided with a valve plate mounting hole on one side of the water outlet cavity, and a plurality of second water holes are provided on the periphery of the valve plate mounting hole, and the plurality of second water holes connect the water outlet cavity and the pump cavity, and the valve plate mounting hole is used for installing a water outlet valve plate, and the water outlet valve plate is used to open or cover the plurality of second water holes.

[0013] In one embodiment, the outer periphery of the plurality of second water holes is provided with a groove; or,

[0014] The fluid control plate is provided with a sink groove on one side of the water outlet cavity, and the second water passing hole is opened at the bottom of the sink groove.

[0015] In one embodiment, the diaphragm assembly includes a diaphragm member, a swing frame, a connecting shaft and an eccentric seat, the pump chamber is formed on the diaphragm member, the diaphragm member is connected to the swing frame, and the two ends of the connecting shaft are respectively connected to the swing frame and the eccentric seat; the diaphragm pump also includes a driving motor, and the motor shaft of the driving motor is connected to the eccentric seat.

[0016] In one embodiment, the pump chambers are provided in plurality, and the plurality of pump chambers are arranged at intervals along the circumference of the diaphragm; and sealing ribs are provided at the periphery of the cavity opening of the pump chamber.

[0017] In one embodiment, the sealing rib and the diaphragm are integrally formed, and the diaphragm is made of a soft material.

[0018] In one embodiment, the water purifier further comprises a filter element assembly, wherein the filter element assembly is disposed in the housing and is located above the hot tank, the water inlet side of the filter element assembly is used to access tap water, and the water outlet side of the filter element assembly is connected to the water inlet side of the water storage chamber.

[0019] The technical solution of the present invention adopts a diaphragm pump to pump the water in the water storage chamber of the hot tank to the hot water outlet for use by users. The diaphragm pump can be set at the bottom of the hot tank or at one side of the hot tank. The layout is more flexible and is not subject to the restriction that the centrifugal pump must be placed at the bottom of the hot tank to prevent dry pumping. It provides more possibilities for the optimized design of the internal structure of the water purifier. At the same time, the self-priming ability of the diaphragm pump can also effectively avoid the occurrence of dry pumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 A schematic structural diagram of an embodiment of a water purifier provided by the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the internal structure of the water purifier;

[0023] Figure 3 for Figure 2 The structural diagram of the diaphragm pump in FIG.

[0024] Figure 4 for Figure 3 Exploded view of a diaphragm pump;

[0025] Figure 5 for Figure 3 Cross-sectional view of a diaphragm pump;

[0026] Figure 6 for Figure 4 A schematic diagram of the structure of the fluid control board of the diaphragm pump;

[0027] Figure 7 for Figure 4 Schematic diagram of the structure of the diaphragm component of the diaphragm pump.

[0028] Description of Figure Numbers:

[0029] 100. water purifier; 100a. hot water outlet; 1. hot water tank;

[0030] 2. Diaphragm pump; 2a. Water inlet chamber; 2b. Water outlet chamber; 21. Pump body; 22. Pump cover; 221. Water inlet; 222. Water outlet; 23. Fluid control board; 231. Mounting boss; 231a. First water hole; 231b. Umbrella valve mounting hole; 231c. Valve plate mounting hole; 231d. Second water hole; 232. Sink; 24. Diaphragm assembly; 241. Diaphragm element; 241a. Pump chamber; 241b. Sealing rib; 242. Swing frame; 243. Connecting shaft; 244. Eccentric seat; 25. Umbrella valve; 26. Water outlet valve plate; 27. Driving motor;

[0031] 3. Mounting seat; 4. Filter element assembly; 5. Housing.

[0032] 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

[0033] 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.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications 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.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. 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 limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The existing water purifiers with clean and hot water functions mainly use centrifugal water pumps to discharge the water in the hot tank for users. Since the centrifugal pump itself has no self-priming ability, it must be placed at the bottom of the hot tank to ensure that the water entering the centrifugal pump has a certain pressure to prevent empty pumping. However, this installation method limits the layout flexibility of the internal structure of the equipment to a certain extent. Secondly, the centrifugal pump has a high speed and is more sensitive to pressure, which makes its flow accuracy in the clean heat system poor. In order to ensure the flow accuracy, it is necessary to add an additional heat-resistant flow meter to feedback the flow information and adjust the water pump speed in real time, which not only increases the cost of the equipment, but also makes the system more complicated. In addition, the hot tank must be provided with a larger exhaust port to ensure that the hot tank is connected to the atmosphere to avoid vacuum in the tank after the water is discharged, resulting in too low water pressure in the pump inlet and empty pumping. However, the presence of a larger exhaust port greatly reduces the thermal insulation performance of the hot tank, so that the equipment needs to consume more energy to maintain the water temperature.

[0037] In view of this, the present invention proposes a water purifier that can solve the aforementioned technical problems. The water purifier of the present invention can be a water purifier, an under-the-sink water purifier, etc.

[0038] See also Figure 1 and Figure 2 In one embodiment of the present invention, the water purifier 100 has a hot water outlet 100a, and the water purifier 100 includes a shell 5, a hot tank 1 and a diaphragm pump 2; the hot tank 1 is arranged in the shell 5, and the hot tank 1 has a water storage cavity; the diaphragm pump 2 is arranged in the shell 5, the water inlet 221 of the diaphragm pump 2 is connected to the water outlet side of the water storage cavity, and the water outlet 222 of the diaphragm pump 2 is connected to the hot water outlet 100a, and the diaphragm pump 2 is used to pump the hot water in the water storage cavity to the hot water outlet 100a for water discharge; the diaphragm pump 2 is arranged at the bottom of the hot tank 1, or the diaphragm pump 2 is arranged on one side of the hot tank 1.

[0039] Specifically, the shell 5 serves as the external protection structure of the entire water purifier 100, and is usually made of plastic material, has certain strength and corrosion resistance, and can effectively protect the internal components from the influence of the external environment. The hot tank 1 is arranged in the shell 5, which has a water storage chamber for storing hot water. The hot tank 1 is generally made of stainless steel or food-grade plastic. The hot tank 1 made of stainless steel has good thermal conductivity, can heat water quickly, and is not easy to rust; the food-grade plastic material is light in weight, low in cost, and also meets food hygiene and safety standards. The diaphragm pump 2 is also arranged in the shell 5, and its water inlet 221 is connected to the water outlet side of the water storage chamber, and the water outlet 222 is connected to the hot water outlet 100a, in order to pump the hot water in the water storage chamber to the hot water outlet 100a for water discharge. The diaphragm pump 2 can be arranged at the bottom of the hot tank 1. This layout can use gravity to assist hot water to flow into the diaphragm pump 2, reducing the resistance of the pump to absorb water. The diaphragm pump 2 can also be arranged on one side of the hot tank 1, which is convenient for separate maintenance and overhaul of the hot tank 1 and the diaphragm pump 2, thereby improving the maintainability of the equipment.

[0040] Compared with the traditional water purifier 100 using a centrifugal pump, this embodiment uses a diaphragm pump 2, which has a more flexible layout and is not restricted by the centrifugal pump having to be placed at the bottom of the hot tank 1 to prevent empty pumping. It provides more possibilities for the optimized design of the internal structure of the water purifier 100. At the same time, the self-priming ability of the diaphragm pump 2 can also effectively avoid the occurrence of empty pumping. In addition, the diaphragm pump 2 has high flow accuracy, and a heat-resistant flow meter can be discarded, reducing the cost of the water purifier 100. At the same time, due to the improved self-priming ability of the diaphragm pump 2, the cross-sectional area of ​​the exhaust hole connected to the water storage chamber of the hot tank 1 can be reduced by more than 20% without worrying about cavitation problems, greatly improving the thermal insulation performance of the hot tank 1.

[0041] The technical solution of the present invention adopts a diaphragm pump 2 to pump the water in the water storage chamber of the hot tank 1 to the hot water outlet 100a for use by the user. The diaphragm pump 2 can be set at the bottom of the hot tank 1 or at one side of the hot tank 1. The layout is more flexible and is not subject to the restriction that the centrifugal pump must be placed at the bottom of the hot tank 1 to prevent dry pumping. It provides more possibilities for the optimized design of the internal structure of the water purifier 100. At the same time, the self-priming ability of the diaphragm pump 2 can also effectively avoid the occurrence of dry pumping.

[0042] See also Figure 1 and Figure 2In one embodiment, the water purifier 100 further includes a mounting seat 3, the mounting seat 3 is connected to the housing 5, and the hot tank 1 and the diaphragm pump 2 are arranged on the mounting seat 3. Specifically, the mounting seat 3 is connected to the housing 5 by screws or snaps, and this connection method is convenient for installation and disassembly. The hot tank 1 and the diaphragm pump 2 are both arranged on the mounting seat 3, and the mounting seat 3 is usually made of engineering plastics, has good mechanical strength and stability, and can ensure that the hot tank 1 and the diaphragm pump 2 remain stable during the operation of the equipment. The shape of the mounting seat 3 can be designed according to the appearance of the hot tank 1 and the diaphragm pump 2, such as by using a groove or a protrusion structure, so that the hot tank 1 and the diaphragm pump 2 can fit tightly on the mounting seat 3 to avoid shaking.

[0043] The installation of the mounting base 3 makes the installation of the hot tank 1 and the diaphragm pump 2 more stable, reduces the vibration and noise generated when the equipment is running, and also facilitates the overall installation and maintenance, thereby improving the production and maintenance efficiency. For example, during the production process, the hot tank 1 and the diaphragm pump 2 can be first installed on the mounting base 3, and then the mounting base 3 can be installed as a whole into the housing 5, which simplifies the installation process.

[0044] See also Figure 1 , further, the diaphragm pump 2 is located at the front side of the hot tank 1. Specifically, the diaphragm pump 2 is located at the front side of the hot tank 1. This position layout makes the operation and maintenance of the equipment more convenient, and it is easy to inspect, repair and replace parts. In terms of space utilization, the back side of the hot tank 1 can be used to arrange other components, such as electrical control components, etc., which improves the utilization rate of the internal space of the water purifier 100. For example, when the diaphragm pump 2 fails, the maintenance personnel can directly repair the diaphragm pump 2 without disassembling a large number of other components, which improves the reliability and maintainability of the equipment.

[0045] In one embodiment, a hot water outlet (not shown in the figure) is provided at the bottom of the water storage chamber, and the water inlet 221 of the diaphragm pump 2 is connected to the hot water outlet through a pipeline. Specifically, a hot water outlet is provided at the bottom of the water storage chamber, and the hot water outlet is generally circular or elliptical, and its size is designed according to the flow demand of the water purifier 100. The water inlet 221 of the diaphragm pump 2 and the hot water outlet are connected through a pipeline, and the pipeline usually adopts a high-temperature resistant rubber tube or plastic tube, which can not only ensure good sealing, but also withstand the high temperature of hot water. The connection mode of the pipeline can be a threaded connection or a clamp connection, the threaded connection has good sealing, and the clamp connection is easy to disassemble and replace the pipeline. By arranging a hot water outlet at the bottom of the water storage chamber and connecting it to the water inlet 221 of the diaphragm pump 2, it is ensured that hot water can flow smoothly from the water storage chamber into the diaphragm pump 2, avoiding the leakage and excessive resistance of hot water during the flow process, and ensuring the supply efficiency of hot water.

[0046] In one embodiment, the hot tank 1 is provided with a water level detection assembly (not shown in the figure), the water level detection assembly includes a low water level detection member, a middle water level detection member and a high water level detection member, and the water level monitoring assembly is used to detect the water level in the water storage chamber. Specifically, the hot tank 1 is provided with a water level detection assembly, including a low water level detection member, a middle water level detection member and a high water level detection member. These detection members can adopt liquid level sensors, such as capacitive liquid level sensors or float type liquid level sensors. The capacitive liquid level sensor measures the water level by detecting the capacitance change caused by the liquid level change, and has the characteristics of high precision and fast response; the float type liquid level sensor detects the water level by driving the switch action of the float ball as the water level rises and falls, and has a simple structure and high reliability. The water level detection assembly is installed on the side or bottom of the hot tank 1, and detects the water level by contacting with the water in the hot tank 1.

[0047] The water level detection component can detect the water level in the water storage chamber in real time. When the water level is too low, it reminds the user to replenish water in time to avoid the diaphragm pump 2 from pumping empty; when the water level is too high, it can prevent water from overflowing the hot tank 1. For example, during the operation of the water purifier 100, if the water level detection component detects that the water level is lower than the set value of the low water level detection component, the device can automatically sound an alarm to remind the user to add water, thereby ensuring the normal operation and service life of the device.

[0048] See also Figure 3 and Figure 4 In one embodiment, the diaphragm pump 2 includes a pump body 21, a pump cover 22 and a fluid control plate 23 sandwiched between the pump body 21 and the pump cover 22. The pump cover 22 is provided with a water inlet 221 and a water outlet 222. The pump cover 22 and the fluid control plate 23 cooperate to form an isolated water inlet chamber 2a and a water outlet chamber 2b. The water inlet chamber 2a is connected to the water inlet 221, and the water outlet chamber 2b is connected to the water outlet 222. The diaphragm pump 2 also includes a diaphragm assembly 24, and the diaphragm assembly 24 has a pump chamber 241a. The water inlet chamber 2a and the water outlet chamber 2b are connected through the pump chamber 241a.

[0049] Specifically, the diaphragm pump 2 includes a pump body 21, a pump cover 22, and a fluid control plate 23 sandwiched between the pump body 21 and the pump cover 22. The pump body 21 is usually made of metal materials, such as aluminum alloy, and has good strength and heat dissipation performance; the pump cover 22 is generally made of plastic material, which is light and easy to process. The pump cover 22 is provided with a water inlet 221 and a water outlet 222. The pump cover 22 and the fluid control plate 23 cooperate to form an isolated water inlet chamber 2a and a water outlet chamber 2b. The water inlet chamber 2a is connected to the water inlet 221, and the water outlet chamber 2b is connected to the water outlet 222. The diaphragm pump 2 also includes a diaphragm assembly 24, which has a pump chamber 241a, and the water inlet chamber 2a and the water outlet chamber 2b are connected through the pump chamber 241a. The diaphragm member 241 in the diaphragm assembly 24 is generally made of soft materials such as rubber or silicone, has good elasticity and sealing, and can play a role in isolating and conveying liquid during the operation of the pump. The structural design of the diaphragm pump 2 can effectively control the inflow and outflow of water, and realize the stable pumping of hot water through the reciprocating motion of the diaphragm assembly 24. Compared with the centrifugal pump, the diaphragm pump 2 is less sensitive to pressure and has higher flow accuracy. There is no need to add an additional heat-resistant flow meter to adjust the flow, which reduces equipment cost and system complexity.

[0050] See also Figure 4 and Figure 6 In one embodiment, a mounting boss 231 is provided on one side of the fluid control plate 23 located at the water inlet chamber 2a, and a plurality of first water holes 231a and an umbrella valve mounting hole 231b are formed on the mounting boss 231. The plurality of first water holes 231a communicate with the water inlet chamber 2a and the pump chamber 241a. The plurality of first water holes 231a are arranged at intervals along the circumference of the mounting boss 231 and are arranged in a ring shape. The umbrella valve mounting hole 231b is used to install an umbrella valve 25, and the umbrella valve 25 is used to open or cover the plurality of first water holes 231a.

[0051] Specifically, the fluid control plate 23 is provided with a mounting boss 231 on one side of the water inlet chamber 2a. The mounting boss 231 is generally cylindrical or square, and its height is designed according to actual needs. The mounting boss 231 is provided with a plurality of first water holes 231a and umbrella valve mounting holes 231b. The plurality of first water holes 231a connect the water inlet chamber 2a and the pump chamber 241a, and are arranged at intervals along the circumference of the mounting boss 231 and are arranged in a ring shape. This layout enables the water flow to enter the pump chamber 241a more evenly. The plurality of first water holes 231a are in the shape of waist-shaped holes or fan-shaped holes. Compared with circular holes, waist-shaped holes and fan-shaped holes can increase the water flow area and improve the water flow speed. The umbrella valve mounting hole 231b is used to install the umbrella valve 25. The umbrella valve 25 is generally made of rubber or silicone, has good flexibility and sealing, and is used to open or cover the plurality of first water holes 231a.

[0052] The design of the first water hole 231a and the umbrella valve 25 can effectively control the water flow between the water inlet chamber 2a and the pump chamber 241a. When the pump chamber 241a needs to be filled with water, the umbrella valve 25 opens, and water enters the pump chamber 241a through the first water hole 231a; when the pump chamber 241a does not need to be filled with water, the umbrella valve 25 closes to prevent water from flowing back. This structure improves the working efficiency and stability of the diaphragm pump 2, ensures that hot water can flow along a predetermined path, and reduces energy loss.

[0053] See also Figure 6 , further, the shape of the multiple first water holes 231a is a waist-shaped hole or a fan-shaped hole. Specifically, the shape of the multiple first water holes 231a is a waist-shaped hole or a fan-shaped hole. The long axis direction of the waist-shaped hole is consistent with the direction of the water flow, which can increase the passing area of ​​the water flow, make the water enter the pump chamber 241a more smoothly, and reduce the water flow resistance; the design of the fan-shaped hole can increase the water flow area in a limited space, and at the same time, the water flow forms a certain vortex when entering the pump chamber 241a, which helps to improve the delivery efficiency of the pump. Compared with the traditional circular water holes, the waist-shaped holes and the fan-shaped holes can significantly increase the water flow speed and flow rate, and enhance the pumping capacity of the diaphragm pump 2. For example, under the same working conditions, the diaphragm pump 2 with a waist-shaped hole or a fan-shaped hole has a pumping speed that is 5 to 15% higher than that of the diaphragm pump 2 with a circular hole, and can pump hot water to the hot water outlet 100a faster, meeting the user's use needs.

[0054] See also Figure 4 and Figure 6 In one embodiment, a valve plate mounting hole 231c is provided on one side of the water outlet chamber 2b of the fluid control plate 23, and a plurality of second water holes 231d are provided on the periphery of the valve plate mounting hole 231c. The plurality of second water holes 231d connect the water outlet chamber 2b and the pump chamber 241a. The valve plate mounting hole 231c is used to install a water outlet valve plate 26, and the water outlet valve plate 26 is used to open or cover the plurality of second water holes 231d.

[0055] Specifically, the fluid control plate 23 is provided with a valve plate mounting hole 231c on one side of the water outlet chamber 2b, and a plurality of second water holes 231d are provided on the periphery of the valve plate mounting hole 231c, and the plurality of second water holes 231d communicate with the water outlet chamber 2b and the pump chamber 241a. The valve plate mounting hole 231c is used to mount the water outlet valve plate 26, which is generally made of rubber or silicone and has good flexibility and sealing properties, and is used to open or cover the plurality of second water holes 231d.

[0056] See also Figure 6 In one embodiment, a groove is disposed on the outer periphery of the plurality of second water holes 231d; or

[0057] A sink 232 is provided on one side of the fluid control plate 23 located at the water outlet chamber 2 b , and a second water hole 231 d is opened at the bottom of the sink 232 .

[0058] Specifically, a groove is provided on the periphery of the plurality of second water holes 231d; or, a trough 232 is provided on one side of the fluid control plate 23 located at the water outlet chamber 2b, and the second water holes 231d are opened at the bottom of the trough 232. The design of the groove or trough 232 can increase the strength of the second water holes 231d to prevent rupture or deformation under the impact of water flow. The depth and width of the groove are designed according to actual needs. The groove can increase the thickness of the surrounding material of the second water holes 231d and improve its impact resistance. Alternatively, a trough 232 is provided on one side of the fluid control plate 23 located at the water outlet chamber 2b, and the second water holes 231d are opened at the bottom of the trough 232. The design of the trough 232 can make the position of the second water holes 231d more reasonable and reduce the impact of water flow on other parts of the fluid control plate 23.

[0059] On the other hand, when grooves are provided on the periphery of the plurality of second water holes 231d, the grooves will construct additional space between the second water holes 231d and the water outlet valve plate 26. On the one hand, this space increases the air circulation area. During the long-term non-use of the diaphragm pump 2, moisture has more opportunities to evaporate naturally in the air channel formed by the grooves, thereby preventing moisture from continuously accumulating at the contact point between the valve plate and the control board. On the other hand, the grooves change the surface tension distribution of water, reduce the adsorption force between the valve plate and the edge of the second water hole 231d, and reduce the possibility of adhesion. For example, in a humid environment, an ordinary planar structure is prone to valve plate adhesion due to residual moisture, while a diaphragm pump 2 with a groove design can guide and disperse moisture through the grooves to prevent the valve plate from being tightly fitted to the control board for a long time.

[0060] The design of the fluid control plate 23 being provided with a sink 232 on one side of the water outlet chamber 2b and the second water hole 231d being opened at the bottom of the sink 232 has the same significant advantages. The sink 232 is equivalent to creating a "buffer area" around the second water hole 231d. After the diaphragm pump 2 stops working, even if a small amount of water remains near the second water hole 231d, the water will accumulate in the sink 232 instead of directly soaking the contact part between the valve plate and the control plate, greatly reducing the probability of the valve plate and the second water hole 231d sticking together. In addition, the sink 232 can also act as a physical barrier to prevent external impurities from directly contacting the valve plate and the second water hole 231d, and avoid adhesion caused by impurity embedding. Taking the use scenario with poor water quality as an example, impurities are easily attached to components with the water flow. The sink 232 can block most of the impurities, keep the valve plate and the control plate clean, reduce the risk of adhesion, and ensure the normal operation of the diaphragm pump 2 when it is started again.

[0061] See also Figure 5 and Figure 7In one embodiment, the diaphragm assembly 24 includes a diaphragm member 241, a swing frame 242, a connecting shaft 243 and an eccentric seat 244, the pump chamber 241a is formed in the diaphragm member 241, the diaphragm member 241 is connected to the swing frame 242, and the two ends of the connecting shaft 243 are respectively connected to the swing frame 242 and the eccentric seat 244; the diaphragm pump 2 also includes a driving motor 27, and the motor shaft of the driving motor 27 is connected to the eccentric seat 244.

[0062] Specifically, the diaphragm assembly 24 includes a diaphragm member 241, a swing frame 242, a connecting shaft 243 and an eccentric seat 244, a pump chamber 241a is formed in the diaphragm member 241, the diaphragm member 241 is connected to the swing frame 242, and the two ends of the connecting shaft 243 are respectively connected to the swing frame 242 and the eccentric seat 244. The diaphragm pump 2 also includes a drive motor 27, and the motor shaft of the drive motor 27 is connected to the eccentric seat 244. The diaphragm member 241 is generally made of soft materials such as rubber or silicone, and has good elasticity and sealing. The swing frame 242 and the eccentric seat 244 are usually made of metal materials, such as aluminum alloy, and have high strength and wear resistance. The drive motor 27 can be a DC motor or an AC motor, which is selected according to the needs and cost of the equipment.

[0063] The driving motor 27 drives the eccentric seat 244 to rotate, and the swing frame 242 drives the diaphragm 241 to reciprocate through the connecting shaft 243, thereby realizing the volume change in the pump chamber 241a and completing the suction and discharge of hot water. This structural design is simple and reliable in operation, and can effectively convert electrical energy into mechanical energy to drive the diaphragm pump 2 to work, thereby ensuring the stable delivery of hot water.

[0064] See also Figure 5 and Figure 7 In one embodiment, a plurality of pump chambers 241a are provided, and the plurality of pump chambers 241a are arranged at intervals along the circumference of the diaphragm member 241; a sealing rib 241b is provided at the periphery of the cavity opening of the pump chamber 241a.

[0065] Specifically, there are multiple pump chambers 241a, and the multiple pump chambers 241a are arranged at intervals along the circumference of the diaphragm 241. This layout can increase the pumping efficiency of the diaphragm pump 2 and improve the delivery volume of hot water. The outer periphery of the cavity opening of the pump chamber 241a is provided with a sealing rib 241b, and the sealing rib 241b is integrally formed with the diaphragm 241, and the material of the diaphragm 241 is a soft material, such as rubber or silicone. The function of the sealing rib 241b is to enhance the sealing of the pump chamber 241a and prevent hot water leakage. The design of multiple pump chambers 241a improves the pumping efficiency of the diaphragm pump 2, and can deliver more hot water in the same time, meeting the user's demand for large-flow hot water. The setting of the sealing rib 241b ensures the sealing of the pump chamber 241a, reduces the risk of hot water leakage, and improves the safety and reliability of the equipment. For example, in some occasions where a large amount of hot water is required, such as hotels, restaurants, etc., the multi-pump chamber 241a diaphragm assembly 24 can quickly provide enough hot water and improve the quality of service.

[0066] See also Figure 7 In one embodiment, the sealing rib 241b is integrally formed with the diaphragm 241, and the material of the diaphragm 241 is a soft material. Specifically, the sealing rib 241b is integrally formed with the diaphragm 241, and the same soft material as the diaphragm 241 is used, such as rubber or silicone. The integral molding process makes the connection between the sealing rib 241b and the diaphragm 241 tighter, without gaps, and effectively prevents hot water leakage. The shape of the sealing rib 241b can be round, square or other shapes, which are selected according to the design of the pump chamber 241a. The structural design of the sealing rib 241b and the diaphragm 241 being integrally formed greatly improves the sealing performance of the pump chamber 241a and reduces the possibility of hot water leakage. Compared with the traditional sealing method using a sealing pad or a sealing ring, the integrally formed sealing rib 241b is more durable, not easy to age and damage, reduces the maintenance cost of the equipment, and increases the service life of the equipment. For example, during long-term use, even if the diaphragm 241 is subjected to a certain amount of stretching and extrusion, the sealing rib 241b can always maintain good sealing performance to ensure the normal operation of the diaphragm pump 2.

[0067] See also Figure 1 In one embodiment, the water purifier 100 also includes a filter element assembly 4, which is disposed in the housing 5 and located above the hot tank 1. The water inlet side of the filter element assembly 4 is used to access tap water, and the water outlet side of the filter element assembly 4 is connected to the water inlet side of the water storage chamber.

[0068] Specifically, the water purifier 100 also includes a filter element assembly 4, which is arranged in the housing 5 and is located above the hot tank 1. The filter element assembly 4 is generally composed of multiple filter elements, such as PP cotton filter element, activated carbon filter element, reverse osmosis filter element, etc., which are used to filter impurities, odors, heavy metals and other harmful substances in tap water. The water inlet side of the filter element assembly 4 is used to access tap water and is connected to the tap water source through a pipeline; the water outlet side of the filter element assembly 4 is connected to the water inlet side of the water storage chamber, and the filtered water flows into the water storage chamber for heating and storage. The setting of the core assembly can effectively purify tap water, improve the water quality of hot water, and protect the health of users. For example, the PP cotton filter element can filter out large particles of impurities in the water, the activated carbon filter element can absorb odors and residual chlorine in the water, and the reverse osmosis filter element can remove heavy metal ions and microorganisms in the water, so that the hot water treated by the water purifier 100 is safer and healthier, meeting the user's demand for high-quality drinking water.

[0069] The above description is only an exemplary 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 technical 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 purifier having a hot water outlet, characterized in that: include: case; A heat tank is disposed in the housing, and the heat tank has a water storage cavity; as well as A diaphragm pump is arranged in the shell, the water inlet of the diaphragm pump is connected to the water outlet side of the water storage chamber, the water outlet of the diaphragm pump is connected to the hot water outlet, and the diaphragm pump is used to pump the hot water in the water storage chamber to the hot water outlet for water discharge; the diaphragm pump is arranged at the bottom of the hot tank, or the diaphragm pump is arranged on one side of the hot tank.

2. The water purifier according to claim 1, characterized in that The water purifier further comprises a mounting seat, the mounting seat is connected to the shell, and the hot tank and the diaphragm pump are arranged on the mounting seat.

3. The water purifier according to claim 2, characterized in that: The diaphragm pump is located on the front side of the hot tank.

4. The water purifier according to claim 3, characterized in that: A hot water outlet is provided at the bottom of the water storage chamber, and the water inlet of the diaphragm pump is connected to the hot water outlet through a pipeline.

5. The water purifier according to claim 4, characterized in that: The hot tank is provided with a water level detection assembly, which includes a low water level detection component, a middle water level detection component and a high water level detection component. The water level monitoring component is used to detect the water level in the water storage cavity.

6. The water purifier according to claim 1, characterized in that: The diaphragm pump includes a pump body, a pump cover and a fluid control plate sandwiched between the pump body and the pump cover, the pump cover is provided with a water inlet and a water outlet, the pump cover and the fluid control plate cooperate to form an isolated water inlet chamber and a water outlet chamber, the water inlet chamber is connected to the water inlet, and the water outlet chamber is connected to the water outlet; the diaphragm pump also includes a diaphragm assembly, the diaphragm assembly has a pump chamber, the water inlet chamber and the water outlet chamber are connected through the pump chamber.

7. The water purifier according to claim 6, characterized in that The fluid control plate is provided with a mounting boss on one side of the water inlet chamber, and the mounting boss is provided with a plurality of first water passing holes and an umbrella valve mounting hole, the plurality of first water passing holes connect the water inlet chamber and the pump chamber, the plurality of first water passing holes are arranged at intervals along the circumference of the mounting boss and are arranged in a ring shape, the umbrella valve mounting hole is used for installing an umbrella valve, and the umbrella valve is used to open or cover the plurality of first water passing holes.

8. The water purifier according to claim 7, characterized in that The plurality of first water holes are in the shape of waist-shaped holes or fan-shaped holes.

9. The water purifier according to claim 6, characterized in that: The fluid control plate is provided with a valve plate mounting hole on one side of the water outlet cavity, and a plurality of second water holes are provided on the periphery of the valve plate mounting hole, and the plurality of second water holes connect the water outlet cavity and the pump cavity, and the valve plate mounting hole is used for installing a water outlet valve plate, and the water outlet valve plate is used to open or cover the plurality of second water holes.

10. The water purifier according to claim 9, characterized in that The outer peripheries of the plurality of second water holes are provided with grooves; or, The fluid control plate is provided with a sink groove on one side of the water outlet cavity, and the second water passing hole is opened at the bottom of the sink groove.

11. The water purifier according to claim 6, characterized in that: The diaphragm assembly includes a diaphragm member, a swing frame, a connecting shaft and an eccentric seat. The pump chamber is formed in the diaphragm member. The diaphragm member is connected to the swing frame. The two ends of the connecting shaft are respectively connected to the swing frame and the eccentric seat. The diaphragm pump also includes a driving motor, and the motor shaft of the driving motor is connected to the eccentric seat.

12. The water purifier according to claim 11, characterized in that There are multiple pump chambers, and the multiple pump chambers are arranged at intervals along the circumference of the diaphragm. A sealing rib is provided on the outer periphery of the cavity opening of the pump chamber.

13. The water purifier according to claim 12, characterized in that: The sealing rib is integrally formed with the diaphragm component, and the diaphragm component is made of a soft material.

14. The water purifier according to any one of claims 1 to 13, characterized in that: The water purifier also includes a filter element assembly, which is arranged in the shell and located above the hot tank. The water inlet side of the filter element assembly is used to connect to tap water, and the water outlet side of the filter element assembly is connected to the water inlet side of the water storage chamber.

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