Water purifier

Abstract

The invention relates to the field of water purification equipment, and discloses a water purifier which comprises a shell, a filter element assembly, a waterway plate assembly, an electric control module and a booster pump, by optimizing the spatial layout of the filter element assembly, the waterway plate assembly and the electric control module, arrangement of internal parts is more compact, and the water purification efficiency is improved. Meanwhile, through reasonable layout, the length of a connecting pipe diameter between internal parts is greatly shortened, the redundant occupied space of a pipeline is reduced, the internal space utilization rate of the water purifier is greatly improved, and therefore the size of the water purifier is remarkably reduced.

Description

Technical Field

[0001] This application relates to the field of water purification equipment, and particularly to a water purifier. Background Art

[0002] Currently, kitchen water purifiers are directly connected to faucets and achieve hierarchical filtration of tap water through a multi-stage filtration system, and then can output low-impurity purified water and high-impurity concentrated water according to needs. However, in the case of large-flow usage scenarios for existing kitchen water purifiers, taking the 1000G large-flow scenario as an example, to meet the large-flow demand, the filter media capacity of filter components such as filter elements and membrane elements needs to be increased accordingly, which causes the volume of these components to expand, and then occupies more space inside the water purifier. Since the waterway board, pump body, control board and other core components are also integrated inside the water purifier, the expansion of the volume of the filter components limits the placement flexibility of other core components, and ultimately makes it difficult to further reduce the volume of the water purifier. Summary of the Invention

[0003] This application aims to improve at least one technical problem in the background art. For this reason, one object of this application is to optimize the arrangement method of internal components of the water purifier to reduce the volume of the water purifier.

[0004] This application provides a water purifier, which includes a housing, a filter element assembly, a waterway board assembly, an electronic control module and a booster pump; the filter element assembly includes a long composite filter element and a short composite filter element arranged vertically in sequence, and both the long composite filter element and the short composite filter element are horizontally arranged in the housing; the waterway board assembly is arranged in the housing and is located on one side close to the filtered water outlet end of the long composite filter element; the electronic control module includes a power supply device and a control component arranged oppositely in the longitudinal direction, and both the power supply device and the control board are arranged between the long composite filter element and the short composite filter element and are located on the side of the housing close to the short composite filter element; the booster pump is arranged in the housing and is located on the side of the waterway board assembly away from the long composite filter element.

[0005] According to some technical solutions of this application, the filter element assembly further includes a split middle frame, the split middle frame includes a first frame body and a second frame body, both the first frame body and the second frame body are arranged in the housing, the first frame body has a first arc portion and a second arc portion, the second frame body has a third arc portion and a fourth arc portion, the first frame body and the second frame body are buckled so that the first arc portion and the third arc portion enclose a first accommodation cavity, the second arc portion and the fourth arc portion enclose a second accommodation cavity, the long composite filter element is arranged in the first accommodation cavity, the short composite filter element is arranged in the second accommodation cavity, and a connecting plate is provided at the splicing position of the first frame body and the second frame body, and the power supply device and the control component are fixed on the connecting plate.

[0006] According to some technical solutions of the present application, a liquid drainage groove is provided in the first accommodating cavity and / or the second accommodating cavity, and the liquid drainage groove is provided at the splicing position of the first frame body and the second frame body.

[0007] According to some technical solutions of the present application, the water circuit board assembly includes a water circuit board. The water circuit board includes a board body, a raw water inlet pipe, a primary filter outlet pipe, an extension pipe, a pure water outlet pipe, and a concentrated water outlet pipe that extend horizontally and are arranged on the board body, a primary filter water supply pipe that extends vertically, and a main pipe that extends longitudinally. A main pipe outlet pipe that extends horizontally and is communicated with the main pipe is provided on the main pipe. The main pipe outlet pipe is communicated with the water inlet end of the booster pump. The water outlet end of the booster pump is communicated with the water inlet end of the long composite filter element; the primary filter outlet pipe is connected and communicated with the main pipe through the primary filter water supply pipe; the raw water inlet pipe is communicated with the water inlet end of the short composite filter element; the primary filter outlet pipe is communicated with the water outlet end of the short composite filter element; the pure water outlet pipe is communicated with the water outlet end of the long composite filter element; the concentrated water outlet pipe is communicated with the filter discharge end of the long composite filter element.

[0008] According to some technical solutions of the present application, the water circuit board assembly further includes a one-way valve assembly. The water circuit board further includes a return pipe that extends horizontally, a return connection pipe that extends longitudinally, and a secondary filter outlet pipe that extends vertically. The return pipe is connected and communicated with the main pipe, the return pipe is communicated with the return connection pipe, and the one-way valve assembly is arranged in the return pipe.

[0009] According to some technical solutions of the present application, the one-way valve assembly includes a valve seat, a valve core, a spring, and an inner sealing ring. The valve seat is arranged in the pipeline. A flow cavity is provided in the valve seat. The valve core is located inside the valve seat. The valve core includes a valve column and a valve head that are connected to each other. The valve column is inserted into the flow cavity. The outer wall of the valve head is sleeved with the inner sealing ring. One end of the spring abuts against the valve seat, and the other end abuts against the valve head, pressing the inner sealing ring tightly on the valve seat.

[0010] According to some technical solutions of the present application, the control assembly includes an electric control board, a thyristor element, and a heat dissipation assembly. The electric control board is fixed in the housing. The thyristor element is arranged on the electric control board. The heat dissipation assembly includes a heat dissipation plate body, a liquid cooling pipeline, and a heat conduction plate. A liquid cooling pipeline is provided in the heat dissipation plate body. The liquid cooling pipeline is communicated with the water circuit board. A heat exchange cavity is provided on the liquid cooling pipeline. An opening is provided on the heat exchange cavity. The heat conduction plate is covered and fixed on the opening, and the heat conduction plate is attached and connected to at least part of the thyristor element.

[0011] According to some technical solutions of the present application, the liquid cooling pipeline includes a water inlet pipe and a water outlet pipe. Both the water inlet pipe and the water outlet pipe are arranged on the heat dissipation plate body. A water cooling water supply pipe extending horizontally is also arranged on the water circuit board. One end of the water inlet pipe is communicated with the heat exchange cavity, and the other end is communicated with the water cooling water supply pipe; one end of the water outlet pipe is communicated with the heat exchange cavity, and the other end is communicated with the extension pipe.

[0012] According to some technical solutions of the present application, the heat dissipation assembly further includes heat dissipation fins, and the heat dissipation fins are fixedly attached to the side of the heat conduction plate away from the heat exchange cavity.

[0013] According to some technical solutions of the present application, both the liquid inlet pipe and the liquid outlet pipe of the booster pump are arranged vertically.

[0014] The water purifier provided by the present application has at least the following beneficial effects: By optimizing the spatial layout of the filter element assembly, the water circuit board assembly and the electronic control module, the arrangement of internal components is more compact. At the same time, the length of the connecting pipe diameters between internal components is greatly shortened, reducing the space occupied by redundant pipelines, significantly improving the space utilization rate inside the water purifier, and thus significantly reducing the volume of the water purifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structure diagram of a perspective of the water purifier provided by the embodiment of the present application;

[0016] Figure 2 It is a three-dimensional structure diagram of another perspective of the water purifier provided by the embodiment of the present application;

[0017] Figure 3 It is a structural schematic diagram of the internal components of the water purifier provided by the embodiment of the present application;

[0018] Figure 4 It is a three-dimensional structure diagram of the split middle frame provided by the embodiment of the present application;

[0019] Figure 5 It is a side view schematic diagram of the split middle frame provided by the embodiment of the present application;

[0020] Figure 6 It is a structural schematic diagram of a perspective of the first frame body provided by the embodiment of the present application;

[0021] Figure 7 It is a three-dimensional structure schematic diagram of the electronic control module provided by the embodiment of the present application.

[0022] Figure 8 It is a structural schematic diagram of the heat dissipation fins provided by the embodiment of the present application;

[0023] Figure 9 It is a mounting structure schematic diagram of the heat conduction plate provided by the embodiment of the present application;

[0024] Figure 10 Schematic three-dimensional structure diagram of the water circuit board provided by the embodiment of the present application;

[0025] Figure 11 Schematic three-dimensional structure diagram of the water circuit board provided by the embodiment of the present application from another perspective;

[0026] Figure 12 Cross-sectional view of the water circuit board provided by the embodiment of the present application;

[0027] Figure 13 Schematic structure diagram of the one-way valve assembly provided by the embodiment of the present application;

[0028] Figure 14 Schematic cross-sectional view of the one-way valve assembly provided by the embodiment of the present application.

[0029] In the drawings: 100 - housing; 200 - filter element assembly; 300 - water circuit board assembly; 400 - electronic control module; 500 - booster pump; 210 - long composite filter element; 220 - short composite filter element; 230 - split middle frame; 231 - first frame body; 232 - second frame body; 2311 - first arc portion; 2312 - second arc portion; 2321 - third arc portion; 2322 - fourth arc portion; 233 - first accommodation cavity; 234 - second accommodation cavity; 235 - liquid discharge groove; 236 - connecting member; 310 - water circuit board; 320 - one-way valve; 3101 - plate body; 3102 - raw water inlet pipe; 3103 - primary filtered water outlet pipe; 3104 - extension pipe; 3105 - pure water outlet pipe; 3106 - concentrated water outlet pipe; 3107 - main pipe; 3108 - main pipe outlet pipe; 3109 - return pipe; 3110 - return connection pipe; 3111 - secondary filtered water outlet pipe; 3112 - water-cooling water supply pipe; 3113 - detection pipe; 3114 - primary filtered water supply pipe; 321 - valve seat; 322 - valve core; 323 - spring; 324 - inner sealing ring; 325 - valve column; 326 - valve head; 327 - flow cavity; 328 - outer sealing ring; 329 - reinforcing rib; 330 - boss; 331 - limiting groove; 332 - inclined surface; 333 - sealing inclined surface; 410 - power supply device; 420 - control component; 421 - electronic control board; 422 - thyristor element; 423 - heat dissipation component; 424 - electronic control box; 4231 - heat dissipation plate body; 4232 - liquid cooling pipeline; 4233 - heat conducting plate; 4234 - heat exchange cavity; 4235 - water inlet pipe; 4236 - water outlet pipe; 4237 - heat dissipation fin. Detailed implementation manners

[0030] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0031] In the description of the present application, it should be understood that terms such as "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Regarding the orientation description, for example, the orientations or positional relationships indicated by up, down, front, back, left, right, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present application. In the description of the present application, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific content of the technical solution.

[0032] The following will be combined with Figures 1 to 14 to illustrate the embodiments of the present application.

[0033] First, referring to Figures 1 to 3 , the present application provides a water purifier, which includes a housing 100, a filter element assembly 200, a water circuit board assembly 300, an electronic control module 400, and a booster pump 500.

[0034] The filter element assembly 200 includes a long composite filter element 210 and a short composite filter element 220 arranged in sequence vertically. The long composite filter element 210 and the short composite filter element 220 are both horizontally arranged in the housing 100. Among them, the long composite filter element 210 can be an RO membrane activated carbon composite filter element or an RO membrane composite filter element, and the short composite filter element 220 can be a PP cotton activated carbon composite filter element or a PP cotton composite filter element, or other types of composite filter elements, which can be set according to actual needs during actual use and are not limited herein.

[0035] The water circuit board assembly 300 is arranged in the housing 100 and is located on one side close to the filter outlet end of the long composite filter element 210;

[0036] The electronic control module 400 includes a power supply device 410 and a control component 420 arranged oppositely longitudinally. The power supply device 410 and the control board are both arranged between the long composite filter element 210 and the short composite filter element 220 and are located on one side of the housing 100 close to the short composite filter element 220. Among them, the power supply device 410 is used to supply power to the whole machine, and the control component 420 is used to receive sensor signals or control the operation of components such as the booster pump 500 and solenoid valves.

[0037] The booster pump 500 is disposed within the housing 100 and is located on the side of the water circuit board assembly 300 away from the long composite filter element 210. For example, when flowing to the existing RO membrane composite filter element after secondary filtration, since the RO membrane aperture of the RO composite reverse osmosis filter element is very small and only water molecules can pass through, additional water pump pressurization is required. That is to say, a booster pump 500 needs to be provided between the second filter element and the pipeline of the water circuit board 310.

[0038] Therefore, by optimizing the spatial layout of the filter element assembly 200, the water circuit board assembly 300 and the electronic control module, the arrangement of the internal components is made more compact. At the same time, the length of the connecting pipe diameters between the internal components is significantly shortened, reducing the space occupied by pipeline redundancy, greatly improving the space utilization rate inside the water purifier, and thus significantly reducing the volume of the water purifier.

[0039] Next, referring to Figures 4 to 6 , in some embodiments, the filter element assembly 200 further includes a split middle frame 230. The split middle frame 230 includes a first frame body 231 and a second frame body 232. Both the first frame body 231 and the second frame body 232 are disposed within the housing 100. The first frame body 231 has a first arc portion 2311 and a second arc portion 2312. The second frame body 232 has a third arc portion 2321 and a fourth arc portion 2322. The first frame body 231 and the second frame body 232 are snapped together so that the first arc portion 2311 and the third arc portion 2321 enclose a first accommodation cavity 233, and the second arc portion 2312 and the fourth arc portion 2322 enclose a second accommodation cavity 234. Along the length direction of the first arc portion 2311, the depth of the first accommodation cavity 233 is greater than the depth of the second accommodation cavity 234 to be adapted to the lengths of the long composite filter element 210 and the short composite filter element 220.

[0040] Thus, by assembling long-sized and short-sized filter elements, not only can multi-stage filtration be achieved, but also the overall filtration effect of the water purifier can be improved. At the same time, the internal structure of the middle frame is made more compact, reducing unnecessary space occupation, helping to reduce the overall volume of the water purifier, and improving the internal space utilization rate.

[0041] Since the first arc portion 2311, the second arc portion 2312, the third arc portion 2321, and the fourth arc portion 2322 are all arc-shaped, after being fastened, the first arc portion 2311 and the third arc portion 2321 enclose to form a first accommodation cavity 233, and the second arc portion 2312 and the fourth arc portion 2322 enclose to form a second accommodation cavity 234. The end portions at both ends of the first accommodation cavity 233 and the second accommodation cavity 234 communicate with each other. The long composite filter element 210, such as an RO membrane filter element, is placed in the first accommodation cavity 233, and the short composite filter element 220, such as a PP cotton filter element, is placed in the second accommodation cavity 234, so that the long composite filter element 210 is installed and fixed in the first accommodation cavity 233, and the short composite filter element 220 is installed and fixed in the second accommodation cavity 234, and the arc portion fits the outer contour of the filter element. On the connecting plate 236 at the splicing position of the first frame body 231 and the second frame body 232, the power supply device 410 and the control component 420 are fixed by screws or buckles, and are located in the vertical gap between the long and short filter elements. The split frame bodies are fastened to form a support for the filter element to prevent the filter element from shaking.

[0042] Optionally, the bottom of the first accommodation cavity 233 and / or the second accommodation cavity 234 is provided with a folding portion, and the folding portion can be arranged on the first frame body 231 and the second frame body 232, so that when different filter elements are placed, the folding portion abuts against one end portion of the filter element to form a block, thereby limiting the insertion depth of the filter element.

[0043] Therefore, by providing the first frame body 231 and the second frame body 232, the conventional integrally formed middle frame body is split into two sub-components for mating connection, reducing the mold preparation cost and simplifying the molding process. Thus, when designing the first frame body 231 and the second frame body 232, the shape and function of each part can be considered more flexibly, and the design limitations of the integrally formed structure are reduced.

[0044] In order to make the first frame body 231 and the second frame body 232 more stable after mating connection, a buckle structure is provided on the first frame body 231 or the second frame body 232. Exemplarily, the buckle structure includes a hook and a bayonet. A hook is provided on one of the first frame body 231 and the second frame body 232, and a bayonet is provided on the other. The hook can be cooperatively connected with the bayonet. When fixing the first frame body 231 and the second frame body 232, the part with the hook is aligned with the part with the bayonet, and a certain pressure is applied to make the hook snap into the bayonet to achieve the connection between the two; when disassembling, applying a reverse force to make the hook disengage from the bayonet can disassemble the first frame body 231 and the second frame body 232. The assembly and disassembly are convenient, thereby preventing the first frame body 231 and the second frame body 232 from moving relatively. In order to further fix the two components and prevent relative displacement, after the two frame bodies are fastened, they can be tightened and fixed by bolts through preset bolt holes.

[0045] In the existing related waterway board designs, the filter elements are separately fixed on both sides of the housing, and the electronic control module or the power supply assembly needs to additionally occupy the space at the top or bottom of the filter element, resulting in more voids inside the water purifier and a relatively large overall volume. Thus, in some embodiments, a connecting plate 236 is provided at the splicing position of the first housing 231 and the second housing 232. The connecting plate 236 at the splicing position provides an installation plane for the power supply device 410 and the control assembly 420. Furthermore, the power supply device 410 and the control assembly 420 can be fixed to the connecting plate 236 by screws or buckles. In this way, by using the splicing gap of the filter element assembly 200 through the connecting plate 236, the electronic control module 400 is embedded between the two filter elements. At the same time, the power supply device 410 and the control assembly 420 are placed opposite to each other, shortening the lateral and longitudinal distances after installation; by using the installation pores of the middle arc portion, the space at the top or bottom of the filter element is not occupied, further reducing the height and width of the water purifier.

[0046] In some embodiments, a liquid discharge groove 235 is provided in the first accommodation cavity 233 and / or the second accommodation cavity 234, and the liquid discharge groove 235 is provided at the splicing position of the first housing 231 and the second housing 232. The condensed water or leaked filtrate that may be generated during the filtering process of the filter element is guided by the groove to the liquid collection cavity at the bottom of the housing 100 or directly discharged, discharging the liquid in a timely manner, thereby avoiding the accumulation of liquid at the electronic control module 400 or the filter element interface and reducing the risk of water leakage. The liquid discharge groove 235 is integrally formed with the split middle frame 230, without the need for additional components, reducing costs.

[0047] When there is liquid accumulation in the first accommodation cavity 233 or the second accommodation cavity 234, the liquid flows towards the liquid discharge groove 235 under the action of gravity and is discharged from the middle frame through the liquid discharge groove 235, thereby avoiding the accumulation of liquid in the accommodation cavity. Further, a liquid guide plate is provided on the side of the first arc portion 2311 facing the liquid discharge groove 235, and the liquid guide plate is inclined outwardly towards the liquid discharge groove 235. The liquid in the first accommodation cavity 233 flows out along the liquid discharge groove 235, and then contacts the liquid guide plate. Under the action of gravity, the liquid will flow along the inclined surface of the liquid guide plate. Under the inclined guidance of the liquid guide plate, along the path of the inclined surface, it flows out of the first housing 231. Therefore, by providing the liquid guide plate, the flow direction of the liquid can be guided, improving the liquid discharge effect.

[0048] Then refer to Figures 10 to 12, in some embodiments, the water circuit board assembly 300 includes a water circuit board 310. The water circuit board 310 includes a board body 3101, a raw water inlet pipe 3102 extending horizontally and disposed on the board body 3101, a primary filtered water outlet pipe 3103, an extension pipe 3104, a pure water outlet pipe 3105, a concentrated water outlet pipe 3106, a primary filtered water supply pipe 3114 extending vertically, and a main pipe 3107 extending longitudinally. A main pipe outlet pipe 3108 extending horizontally and communicating with the main pipe 3107 is provided on the main pipe 3107. The main pipe outlet pipe 3108 is communicated with the water inlet end of the booster pump 500, and the water outlet end of the booster pump 500 is communicated with the water inlet end of the long composite filter element 210;

[0049] Specifically, the short composite filter element 220 has a water inlet end and a water outlet end, and the long composite filter element has a water inlet end, a water outlet end, and a filter discharge end. The raw water inlet pipe 3102 is communicated with the water inlet end of the short composite filter element 220 for connecting to tap water or a water source to be filtered, and introducing the raw water into the first filter element; the primary filtered water outlet pipe 3103 is connected and communicated with the main pipe 3107 through the primary filtered water supply pipe 3114 for providing primary filtered water; the primary filtered water outlet pipe 3103 is communicated with the water outlet end of the short composite filter element 220 for outputting the preliminarily filtered domestic water; the pure water outlet pipe 3105 is communicated with the water outlet end of the long composite filter element 210 for outputting the pure water that has been filtered twice; the concentrated water outlet pipe 3106 is communicated with the filter discharge end of the long composite filter element 210 for outputting the concentrated water output from the filter discharge end of the long composite filter element. The extension pipe 3104 is reserved with pipe interfaces for expanding other functions. By reserving the interface of the extension pipe 3104, other additional devices such as a pipeline machine and a direct drinking faucet can be connected, so as to meet different usage scenarios. Additionally, corresponding pipe orifices can be added to each pipe on the water circuit board and solenoid valves can be provided to control the on / off of a certain pipeline.

[0050] Thus, on the premise of realizing functions of outputting various filtered water qualities such as domestic water, pure water, and concentrated water, the volume of the water circuit board 310 can be further reduced. Exemplarily, the external tap water enters the short composite filter element 220 through the raw water inlet pipe 3102, and after primary filtration, it passes through the primary filtered water outlet pipe 3103. One way is to enter the main pipe 3107 through the primary filtered water supply pipe 3114, and after being pressurized by the booster pump 500, it flows into the long composite filter element 210 for secondary filtration. The long composite filter element 210 produces pure water and concentrated water respectively. The pure water after secondary filtration is output through the pure water outlet pipe 3105, and the concentrated water is discharged through the concentrated water outlet pipe 3106.

[0051] Therefore, by concentrating the water intake end on one side of the plate body 3101, it is convenient to connect to the external water supply or directly take the filtered water, so that it can be used immediately. Multiple other interfaces are located on the other side of the plate body 3101, which is convenient for the quick connection of internal components and reduces the interference between the water intake nozzle and the component connection nozzle. Through the three-dimensional layout of longitudinal, vertical and transverse pipelines, the flow channels of raw water inlet, primary filtration and secondary filtration are integrated into a plate body 3101. The length of the connecting pipe between other components and the waterway plate 310 is shortened through compact components. At the same time, complex flow channel functions can be realized in a limited space without the need for additional pipeline transfers, which is conducive to the miniaturization of the water purifier.

[0052] In particular, the plate body 3101 of the waterway plate 310 and the plurality of pipelines are integrally formed, thereby reducing hose connections, reducing pipeline redundancy and leakage risks, and further reducing the volume of the waterway plate 310 .

[0053] In some optional embodiments, the plate body of the waterway plate further includes at least one detection tube 3113 extending vertically, the detection tube 3113 is arranged on the plate body, one end of the detection tube is connected to the main pipe, and the other end is used to connect to the detection element. Exemplarily, a TDS (Total dissolved solids) sensor probe or a temperature sensor probe is inserted and fixed on the detection tube to perform real-time detection of the filtered water quality or water temperature.

[0054] Reference Figures 13 to 14 The waterway plate assembly 300 also includes a one-way valve 320 assembly, the waterway plate 310 also includes a return pipe 3109 extending horizontally, a return connecting pipe 3110 extending longitudinally, and a secondary filtration outlet pipe 3111 extending vertically, the return pipe 3109 is connected and communicated with the main pipe 3107, the return pipe 3109 is communicated with the return connecting pipe 3110, and the one-way valve 320 assembly is arranged in the return pipe 3109 to prevent the pure water in the return pipe 3109 from flowing back.

[0055] The reflux pipe 3109 flows to the main pipe 3107 and forms a loop with the reflux connecting pipe 3110 to reflux it to the front side of the booster pump 500, dilute the concentration at the front end of the RO membrane, balance the osmotic pressure on both sides of the membrane, and reduce the accumulation of stale water, so that subsequent components can control whether to reflux to the front end for re-filtration or discharge.

[0056] Optionally, the check valve 320 assembly includes a valve seat 321, a valve core 322, a spring 323, and an inner sealing ring 324. The valve seat 321 is provided in the pipeline. A flow-through cavity 327 is provided in the valve seat 321. The valve core 322 is located inside the valve seat 321. The valve core 322 includes a valve stem 325 and a valve head 326 that are connected to each other. The valve stem 325 is inserted into the flow-through cavity 327. An inner sealing ring 324 is sleeved on the outer wall of the valve head 326. One end of the spring 323 abuts against the valve seat 321, and the other end abuts against the valve head 326, pressing the inner sealing ring 324 tightly against the valve seat 321.

[0057] When the liquid flows in from the allowed flow direction, pressure acts on the valve core 322. When the pressure is greater than the pre-tightening force of the spring 323, the valve core 322 moves downward to compress the spring 323, and the valve head 326 and the valve seat 321 are separated, thereby opening the channel of the flow-through cavity 327, and the liquid passes through. When flowing in the reverse direction, the force of the spring 323 and the reverse liquid pressure act together to press the valve head 326 and the inner sealing ring 324 tightly against the valve seat 321, closing the channel, thereby preventing the liquid from flowing backward, realizing the one-way conduction function. When flowing in the reverse liquid direction, the force of the spring 323 and the liquid pressure are in the same direction, enhancing the sealing effect.

[0058] Therefore, by pressing the inner sealing ring 324 tightly against the valve seat 321 by the elastic force of the spring 323, it can effectively prevent the valve head 326 from shifting when the check valve 320 is assembled into the water circuit board 310. There is no need to additionally set fixing parts, the structure is simple, the number of parts is reduced, the assembly process is made more convenient, and thus it can be conveniently assembled inside the water circuit board 310 to save the internal space of the water purifier.

[0059] Since the valve core is prone to shift under water pressure, resulting in liquid leakage. In some embodiments, an inclined surface 332 is provided on the inner wall of the valve seat 321, and a sealing inclined surface 333 is correspondingly provided on the outer edge of the valve head 326. The sealing inclined surface 333 cooperates with the inclined surface 332. When flowing in the forward direction, the valve core 322 is lifted, and the sealing inclined surface 333 is separated from the inclined surface 332. When flowing in the reverse direction, the valve core 322 is reset upward to tightly press against the valve seat 321, and the inclined surfaces are closely fitted, increasing the contact area at the sealing joint, forming an upper-pressing conical surface seal to prevent the liquid from flowing backward. The greater the reverse liquid pressure, the tighter the fitting, so as to further improve the sealing performance of the check valve 320 and extend the service life of the water circuit board 310.

[0060] The check valve 320 assembly further includes an outer sealing ring 328. An annular groove is provided at the end of the valve seat 321. The outer sealing ring 328 is sleeved on the annular groove. The valve seat 321 fixes the outer sealing ring 328 through the annular groove. When the check valve 320 assembly is installed in the pipeline of the water circuit board 310, the outer sealing ring 328 is squeezed between the valve seat 321 and the inner wall of the pipeline, preventing the liquid from leaking from the fitting gap between the two and reducing the hidden danger of water leakage caused by pipeline deformation.

[0061] On one side of the valve head 326 facing the valve stem 325, a limit groove 331 is provided, and one end of the spring 323 is inserted into the limit groove 331. One end of the spring 323 is inserted into the limit groove 331 of the valve head 326 to prevent the spring 323 from shifting or skewing during assembly, ensuring that the elastic force is evenly transmitted along the axial direction of the valve core 322 onto the valve head 326, and avoiding the spring 323 from getting stuck or the valve head 326 from being unevenly stressed, which may affect the sealing effect.

[0062] Furthermore, a boss 330 is provided inside the valve seat 321, and the spring 323 is wound around the boss 330. By providing the boss 330, the lateral displacement of the spring 323 is restricted, preventing the spring 323 from directly abutting against a plane and slipping or shifting, which may cause uneven elastic force, ensuring the sealing performance, and at the same time preventing the spring 323 from fatigue deformation, thereby extending the service life. A through hole is provided on the boss 330, and one end of the valve stem 325 is fitted with and extends into the through hole. Through the cooperation between the valve stem 325 and the through hole, the movement of the valve core 322 is further guided, preventing the valve core 322 from shifting when impacted by water flow, and further extending the service life of the check valve 320 assembly.

[0063] A plurality of reinforcing ribs 329 are provided at the bottom of the valve seat 321. The reinforcing ribs 329 are arranged at intervals along the circumferential direction of the valve seat 321. One end of the reinforcing rib 329 is connected to the top of the valve seat 321, and the other end of the reinforcing rib 329 is connected to the boss 330. By connecting the top of the valve seat 321 and the boss 330 through the reinforcing ribs 329, the overall strength of the valve seat 321 is enhanced, preventing the valve seat 321 from deforming under long-term water flow impact.

[0064] Next, referring to Figures 7 to 9 , in some embodiments, the control assembly 420 includes an electronic control board 421, a thyristor element 422, and a heat dissipation assembly 423. The electronic control board 421 is fixed inside the housing 100, the thyristor element 422 is fixedly provided on the electronic control board 421, the heat dissipation assembly 423 includes a heat dissipation plate body 4231, a liquid cooling pipeline 4232, and a heat conducting plate 4233. A liquid cooling pipeline 4232 is provided inside the heat dissipation plate body 4231. The liquid cooling pipeline 4232 is communicated with the water circuit board 310. A heat exchange cavity 4234 is provided on the liquid cooling pipeline 4232. An opening is provided on the heat exchange cavity 4234, and the heat conducting plate 4233 is fixedly covered on the opening, and the heat conducting plate 4233 is in contact and connected with at least part of the thyristor element 422. By the thyristor element 422 being in contact with the heat conducting plate 4233, it helps to conduct the heat generated on the thyristor to the heat conducting plate 4233. The inner side of the heat conducting plate 4233 is in contact with the liquid flow flowing through the cavity for heat exchange, thereby reducing the temperature of the thyristor, and further maintaining the relative stability of the temperature inside the water purifier.

[0065] Due to the limited internal space of the water purifier, in some embodiments, the diameter of the liquid cooling pipeline 4232 is smaller than the cross-sectional width of the heat exchange cavity 4234, so as to flow out through the relatively narrow water outlet pipe 4236 after absorbing heat, thereby increasing the contact area between the liquid and the heat conduction plate 4233 through the heat exchange cavity 4234 with a larger cross-section, prolonging the residence time of the liquid in the heat exchange cavity 4234, making the heat exchange more sufficient, and further enhancing the heat exchange efficiency. The heat dissipation component 423 is integrated on one side of the electronic control board 421, without occupying additional longitudinal or lateral space. The overall structure of the heat dissipation component 423 is compact, effectively saving the assembly space inside the water purifier.

[0066] In some embodiments, the liquid cooling pipeline 4232 includes a water inlet pipe 4235 and a water outlet pipe 4236. Both the water inlet pipe 4235 and the water outlet pipe 4236 are arranged on the heat dissipation plate body 4231. A water-cooled water supply pipe 3112 extending horizontally is also arranged on the water circuit board 310. One end of the water inlet pipe 4235 is communicated with the heat exchange cavity 4234, and the other end is communicated with the water-cooled water supply pipe 3112; one end of the water outlet pipe 4236 is communicated with the heat exchange cavity 4234, and the other end is communicated with the extension pipe 3104. When the thyristor element 422 works, heat is generated. The heat is conducted through the heat conduction plate 4233 in close contact, and then the heat conduction plate 4233 transfers the heat to the heat exchange cavity 4234. The flowing liquid in the water inlet pipe 4235 flows through the heat exchange cavity 4234 to absorb heat, and heat exchange is carried out through the cavity, and then it is discharged along the water outlet pipe 4236 through the extension pipe 3104. In order to achieve the effect of heat exchange using the liquid flow. In this way, the self-water circuit system of the water purifier is used as the heat dissipation medium, and heat dissipation is realized through the whole machine water circuit system, without additionally designing an independent coolant module.

[0067] Optionally, the overall shape of the heat exchange cavity 4234 is cylindrical. The liquid flows into the cylindrical heat exchange cavity 4234 from the water inlet pipe 4235, flows uniformly along the annular path, and flows out from the water outlet pipe 4236 after absorbing the heat transferred by the heat conduction plate 4233.

[0068] In some embodiments, the heat dissipation component 423 further includes heat dissipation fins 4237. The heat dissipation fins 4237 are fixedly attached to the side of the heat conduction plate 4233 away from the heat exchange cavity 4234. The heat dissipation fins 4237 are attached and fixed to the side of the heat conduction plate 4233 away from the heat exchange cavity 4234. The heat conduction plate 4233 conducts the thyristor heat to the heat dissipation fins 4237, exchanges heat with the liquid cooling pipeline 4232 on one side, and further dissipates heat through convection with the air through the heat dissipation fins 4237 on the other side, so as to form a dual heat dissipation path and further improve the heat dissipation efficiency.

[0069] Optionally, the circuit board structure further includes an electric control box 424. The electric control box 424 is connected to the heat dissipation plate body 4231. The electric control board 421 and the thyristor element 422 are both disposed inside the electric control box 424, and the electric control box 424 protects the elements from interference from the external environment or other components. A through hole is formed in the electric control box 424, and the extending end of the heat conduction plate 4233 passes through the through hole and fits with the thyristor element 422. In this way, the thyristor element 422 generates heat when working inside the electric control box 424, and the heat is directly conducted to the heat dissipation assembly 423 through the extending end of the heat conduction plate 4233 passing through the through hole of the electric control board 421, and the heat is dissipated through the liquid cooling pipeline 4232 or the heat dissipation fins 4237. At the same time, the heat dissipation assembly 423 and the electric control board 421 are integrally designed, saving the internal space of the water purifier and facilitating the pre-assembly and subsequent maintenance.

[0070] In some embodiments, both the liquid inlet pipe and the liquid outlet pipe of the booster pump 500 are arranged vertically. The liquid inlet pipe of the booster pump 500 is connected to the main pipe outlet pipe 3108, and the liquid outlet pipe of the booster pump 500 is connected to the liquid inlet end of the long composite filter element 210. By arranging the pipes vertically, the longitudinal distance of the booster pump 500 itself is shortened, the bending and redundant length of the pipes connecting the filter element and the water circuit board 310 are reduced, and the occupation of the longitudinal space is prevented. In addition, certain terms in this specification have been used to describe the embodiments of this specification. For example, "one embodiment", "embodiment" and / or "some embodiments" mean that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of this specification. Therefore, it can be emphasized and should be understood that two or more references to "embodiment" or "one embodiment" in various parts of this specification do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics may be appropriately combined in one or more embodiments of this specification.

[0071] The above has specifically described the preferred embodiments of the present application, but the present application is not limited to the described embodiments. Without departing from the spirit and scope of this specification, those skilled in the art can adopt equivalent variations or replacement configurations according to the embodiments in this specification to implement the application in this specification, and these equivalent variations or replacements are all included within the scope defined by the claims of the present application.

Claims

1. A water purifier, characterized in that: include: Housing (100); A filter element assembly (200) comprises a long composite filter element (210) and a short composite filter element (220) arranged in sequence along the vertical direction, wherein the long composite filter element (210) and the short composite filter element (220) are both arranged transversely in the housing (100); A waterway plate assembly (300) is disposed in the housing (100) and is located on a side close to the filter outlet end of the long composite filter element (210); An electric control module (400) comprising a power supply device (410) and a control assembly (420) arranged opposite to each other in the longitudinal direction, wherein the power supply device (410) and the control assembly are both arranged between the long composite filter element (210) and the short composite filter element (220), and are located on a side of the housing (100) close to the short composite filter element (220); A booster pump (500) is disposed in the housing (100) and is located on a side of the waterway plate assembly (300) away from the long composite filter element (210).

2. The water purifier according to claim 1, characterized in that: The filter element assembly (200) further comprises a split middle frame (230), the split middle frame (230) comprising a first frame body (231) and a second frame body (232), the first frame body (231) and the second frame body (232) both being arranged in the housing (100), the first frame body (231) having a first arc-shaped portion (2311) and a second arc-shaped portion (2312), the second frame body (232) having a third arc-shaped portion (2321) and a fourth arc-shaped portion (2322), the first frame body (231) and the second frame body (232) being buckled so that the first arc-shaped portion (2311) and the second arc-shaped portion (2312) are respectively The first frame body (2311) and the third arc-shaped portion (2321) are enclosed to form a first accommodating cavity (233), the second arc-shaped portion (2312) and the fourth arc-shaped portion (2322) are enclosed to form a second accommodating cavity (234), the long composite filter element (210) is arranged in the first accommodating cavity (233), the short composite filter element (220) is arranged in the second accommodating cavity (234), a connecting plate (236) is provided at the joint of the first frame body (231) and the second frame body (232), and the power supply device (410) and the control component (420) are fixed on the connecting plate (236).

3. The water purifier according to claim 2, characterized in that: A drainage groove (235) is provided in the first accommodating cavity (233) and / or the second accommodating cavity (234), and the drainage groove (235) is provided at the joint of the first frame body (231) and the second frame body (232).

4. The water purifier according to claim 1, characterized in that: The waterway plate assembly (300) comprises a waterway plate (310), the waterway plate (310) comprising a plate body (3101), a raw water inlet pipe (3102) extending in the transverse direction and arranged on the plate body (3101), a primary filter outlet pipe (3103), an extension pipe (3104), a pure water outlet pipe (3105) and a concentrated water outlet pipe (3106), a primary filter water supply pipe (3114) extending in the vertical direction, and a main pipe (3107) extending in the longitudinal direction, the main pipe (3107) being provided with a main pipe outlet pipe (3108) extending in the transverse direction and communicating with the main pipe (3107), the main pipe outlet pipe (3108) being communicated with a water inlet end of the booster pump (500), and the water outlet end of the booster pump (500) being communicated with a water inlet end of the long composite filter element (210); The primary filter water outlet pipe (3103) is connected and communicated with the main pipe (3107) via the primary filter water supply pipe (3114); The raw water inlet pipe (3102) is in communication with the water inlet end of the short composite filter element (220); The primary filter water outlet pipe (3103) is connected to the water outlet end of the short composite filter element (220); The pure water outlet pipe (3105) is in communication with the water outlet end of the long composite filter element (210); The concentrated water outlet pipe (3106) is in communication with the filter outlet end of the long composite filter element (210).

5. The water purifier according to claim 4, characterized in that: The waterway plate assembly (300) further includes a one-way valve assembly, and the waterway plate (310) further includes a return pipe (3109) extending in the transverse direction, a return connecting pipe (3110) extending in the longitudinal direction, and a secondary filtration outlet pipe (3111) extending in the vertical direction, wherein the return pipe (3109) is connected to and communicated with the main pipe (3107), the return pipe (3109) is communicated with the return connecting pipe (3110), and the one-way valve assembly is arranged in the return pipe (3109).

6. The water purifier according to claim 5, characterized in that: The one-way valve (320) assembly comprises a valve seat (321), a valve core (322), a spring (323), and an inner sealing ring (324); the valve seat (321) is arranged in a pipeline; a circulation cavity (327) is arranged in the valve seat (321); the valve core (322) is located on the inner side of the valve seat (321); the valve core (322) comprises a valve column (325) and a valve head (326) which are connected to each other; the valve column (325) is inserted into the circulation cavity (327); the outer wall of the valve head (326) is sleeved with the inner sealing ring (324); one end of the spring (323) abuts against the valve seat (321), and the other end abuts against the valve head (326), so as to press the inner sealing ring (324) against the valve seat (321).

7. The water purifier according to claim 5, characterized in that: The control component (420) comprises an electric control board (421), a thyristor element (422) and a heat dissipation component (423); the electric control board (421) is fixed in the housing (100); the thyristor element (422) is arranged on the electric control board (421); the heat dissipation component (423) comprises a heat dissipation plate body (4231), a liquid cooling pipeline (4232) and a heat conducting plate (4233); the heat dissipation plate body (4231) is provided with a liquid cooling pipeline (4232); the liquid cooling pipeline (4232) is connected with the water circuit plate (310); a heat exchange cavity (4234) is provided on the liquid cooling pipeline (4232); an opening is provided on the heat exchange cavity (4234); the heat conducting plate (4233) covers and is fixed on the opening; and the heat conducting plate (4233) is closely connected to at least part of the thyristor element (422).

8. The water purifier according to claim 7, characterized in that: The liquid cooling pipeline (4232) includes a water inlet pipe (4235) and a water outlet pipe (4236), and the water inlet pipe (4235) and the water outlet pipe (4236) are both arranged on the heat dissipation plate body (4231). The water circuit plate (310) is also provided with a water-cooling water supply pipe (3112) extending in the transverse direction. One end of the water inlet pipe (4235) is connected to the heat exchange cavity (4234), and the other end is connected to the water-cooling water supply pipe (3112); one end of the water outlet pipe (4236) is connected to the heat exchange cavity (4234), and the other end is connected to the extension pipe (3104).

9. The water purifier according to claim 7, characterized in that: The heat dissipation component (423) further comprises a heat dissipation fin (4237), wherein the heat dissipation fin (4237) is fitted and fixed to a side of the heat conduction plate (4233) away from the heat exchange cavity (4234).

10. The water purifier according to claim 1, characterized in that: The liquid inlet pipe and the liquid outlet pipe of the booster pump (500) are both arranged vertically.

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