Spraying type ice maker

Abstract

The invention discloses a spraying type ice maker which comprises a top cover, a shell and a base plate, a compressor and a condenser which are located on one side of the base plate and arranged side by side are installed on the lower side of the shell, and a fan which directly blows air to the outer side of the shell is installed beside the condenser; a cold water storage tank with a 7-shaped hopper-shaped cavity structure is mounted in the shell beside the compressor and the condenser, and the top end of the cold water storage tank is sealed by a top cover; a spiral automatic ice discharging device used for automatically supplying ice blocks outwards is obliquely arranged in the middle of the cold water storage box. A spraying ice-making device located on the upper portion of the rear side in the cold water storage box is arranged on the upper side of the spiral automatic ice discharging device. A spraying water pump for pumping ice water stored at the bottom of the cold water storage tank to the spraying ice-making device through a pipeline to perform spraying ice-making is also mounted on the outer wall of the storage cavity at the lower part of the cold water storage tank; the whole machine is small in size, capable of automatically controlling ice discharging, high in ice making efficiency and suitable for home use, the evaporator is integrally formed through the die-casting technology, and the heat transfer efficiency of the evaporator and the ice block quality are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household ice makers, in particular to a spray type ice maker. BACKGROUND

[0002] An ice maker is a refrigeration device that generates ice by cooling water through an evaporator assembly and a refrigeration system of a compressor; its evaporator ice-making method includes: (1) immersion type, which fills a water tank with water; (2) spray type, which sprays water through a nozzle; (3) flow type, which flows water from top to bottom at an inclined water place; and (4) various ice-making methods such as using an ice-making grid. However, there are few household spray type ice makers, mainly because the spray type ice maker has a complex structure, a large size, and a high cost, which is not suitable for household use.

[0003] Among existing household ice makers, a small spray type ice maker and an ice-making method thereof provided in patent publication "CN217464992U" uses a spray ice-making method, continuously sprays water upward on an evaporator by using a water pump, and because the flowing water can reduce air content, the ice produced is more transparent and hard, which cannot be compared with the opaque ice blocks of immersion type, flow type, and extrusion type ice makers. Therefore, the ice blocks produced by the spray type ice maker are widely used in alcoholic or beverage drinks.

[0004] However, in the existing household spray type ice maker, a drain pump needs to be additionally provided to pump the excess water in the ice storage box to the evaporator when the ice is removed, resulting in a complex structure and a large size of the ice maker. In addition, in the existing spray type ice maker, the water inlet temperature often exceeds 5℃, causing the pre-cooling time to be prolonged, the ice-making period to be increased, and the ice output speed to be slow, which often requires a long waiting time for the user, and cannot effectively meet the user's demand. Moreover, after long-term use, the spray head or pipeline is clogged by scale and impurities, causing the entire spray system to be clogged, resulting in uneven water flow distribution, slow ice layer formation, and serious impact on ice-making efficiency.

[0005] In addition, the evaporator in the existing household ice maker is generally formed by stamping, bending and combining copper plates to form ice cells, and then a bent copper pipe is tin soldered on the back of the ice cell as a circulating channel for refrigerant, and then nickel is plated on the surface. The ice cell made of copper plate is prone to deformation, which causes the ice cubes produced to be prone to deformation and unable to guarantee consistent shape and size. Moreover, the deformed ice cubes are not easy to be removed, which causes the ice removal time to be prolonged. Meanwhile, the connection between the ice cell and the copper pipe adopts the tin soldering method, which is prone to tin soldering gap and tin soldering instability, causing the ice cell and the copper pipe, or the separation piece between the ice cells to fall off after continuous ice making and ice removal, and many other problems such as poor heat conduction of the ice cell and the copper pipe behind it. Because the welding area of the copper pipe and the copper plate is only 10% of the area of the copper pipe, and the refrigeration system of the ice maker utilizes the refrigeration and heat transfer through the welding points of the copper pipe and the copper plate, the effective contact area between the copper pipe and the copper plate is small, the heat transfer efficiency is not high, the cold energy of the refrigeration system of the ice maker cannot be fully utilized by the copper plate on the ice cell, the other side of the copper pipe which is not connected with the copper plate will release the cold source energy through air, resulting in energy waste, ineffective improvement of ice making efficiency, and slow ice making speed.

[0006] Therefore, it is urgent to improve the internal structure of the existing ice maker to improve its ice making efficiency and ice quality. SUMMARY

[0007] The present application provides a spray type ice maker with small volume, suitable for household use, full-process automatic ice making and ice supply, and an evaporator formed by die casting process to improve the heat transfer efficiency of the evaporator and improve the ice making efficiency and ice quality.

[0008] The technical scheme adopted by the present application to solve the technical problems is: A spray type ice maker for full-automatic ice making and ice supply, comprising a top cover, a shell and a base plate, the top cover is fixedly capped on the top side of the square shell, and the base plate is fixedly supported on the bottom end of the shell; A compressor and a condenser are installed side by side on one side of the base plate and on the lower side of the shell, a fan is installed beside the condenser to directly blow air to the outside of the shell for air cooling of the condenser in the cavity; A cold water storage tank with a "7" shaped cavity structure is installed in the shell beside the compressor and the condenser, and the top end of the cold water storage tank is sealed by the top cover; A spiral automatic ice outlet device is arranged on the middle part of the cold water storage tank, and the upper ice outlet is arranged on the top end side of the cold water storage tank to automatically supply ice cubes outward; The upper side of the spiral automatic ice discharging device is provided with a rear upper part in the cold water storage tank, and a spray ice making device connected with the compressor and the condenser through refrigerant pipelines to form a refrigeration system; The cold water storage tank is used for providing ice making water for the spray ice making device, and forming a storage cavity at the bottom for receiving the cold water falling from the spray ice making device and the spiral automatic ice discharging device. The outer wall of the storage cavity at the lower part of the cold water storage tank is further provided with a spray water pump in the shell, which is used for pumping the ice water stored at the bottom of the cold water storage tank to the spray ice making device through pipelines to spray ice.

[0009] Preferably, the top of the cold water storage tank is further provided with a raw water tank beside the spray ice making device and on the upper side of the spiral automatic ice discharging device, which is used for supplementing water to the storage cavity at the lower part of the cold water storage tank.

[0010] Preferably, the outer wall of the cold water storage tank is further integrally wrapped with a layer of foamed heat preservation cotton in the shell, which is used for heat preservation inside the tank.

[0011] Preferably, the spray ice making device comprises a spray evaporator, a spray pipe, a spray seat and an ice block water filtering grid, the spray pipe is installed on the spray seat and connected with the spray water pump through pipelines, and a plurality of fan-shaped nozzles corresponding to each column of ice making grids at the lower side of the spray evaporator are installed on the spray pipe. The ice block water filtering grid is arranged opposite to the ice making grids at the lower side of the spray evaporator and is obliquely installed on the upper side of the spray seat, and forms an equal gap grid structure facilitating the fan-shaped nozzle spray water to pass through and the ice blocks in the ice making grids to slide down along the inclined surface and simultaneously filter out the ice melting water. The lower side of the spray evaporator is further rotationally connected with a plurality of coaxial and parallel arranged rotating swing arm plates which are automatically arranged to be downward by their own gravity, and at the same time, the rotating swing arm plates are surrounded by the spray seat and the inner wall of the cold water storage tank to form a closed space preventing the spray water of the fan-shaped nozzle from overflowing, and facilitating the ice blocks on the ice block water filtering grid to push the rotating swing arm plates to slide out after being deflected.

[0012] Preferably, the spray evaporator comprises an evaporative copper pipe, an ice tray base and a plurality of array distributed ice making grids, and the evaporative copper pipe is communicated with the refrigeration system for ice making. The ice making grids are arranged on the lower end surface of the ice tray base and are integrally formed by aluminum alloy die casting; The evaporative copper pipe is sequentially bent to form a row or double rows of bending channels which are directly exchanged with the cold quantity of each ice block forming cavity of the ice making grid and are sequentially and circularly connected and penetrated. The ice tray base is integrally die-cast with the ice-making grids along the extension direction of the evaporative copper pipe and is installed in the inner cavity of each ice-making grid on the corresponding side.

[0013] Preferably, all the bottom surfaces of the adjacent ice-making grids are flush and integrally die-cast on the other side of the ice outlet of the ice-making grid, and the ice tray base and the evaporative copper pipe are protrudingly arranged outside the bottom surfaces of all the ice-making grids.

[0014] Preferably, the inner cavity bottom of each ice block forming cavity of the ice-making grid is further provided with a negative pressure demolding hole for rapid demolding of ice blocks in the ice-making grid and preventing negative pressure adsorption on the inner cavity bottom.

[0015] Preferably, a plurality of drainage holes are further provided on the top end surface between the ice-making grids and penetrating the lower end surface of the ice-making grid for draining water accumulated in the corresponding rear cavity of the ice tray base during ice outlet, and a drainage flow channel is formed at the interval between the two rows of ice-making grids and communicating with all the drainage holes.

[0016] Preferably, a separation cover made of silicone or plastic material for isolating heat conduction is integrally die-cast and mounted on the corresponding lower surface of the ice-making grid in the integrally formed ice tray base and ice-making grid to avoid the situation that ice blocks are connected due to direct contact of the spray water with the ice-making grid and heat absorption of the ice-making grid.

[0017] Preferably, a rear shell seat made of silicone or plastic material for isolating heat conduction is integrally die-cast and sealed on the outside of the ice tray base and abuts against the separation cover to form a closed cavity for wrapping the entire ice tray base and ice-making grid refrigeration source to prevent the energy of the refrigeration source from dissipating.

[0018] Preferably, the spiral automatic ice outlet device comprises a U-shaped ice storage basket, a spiral shaft and an ice outlet motor, and the U-shaped ice storage basket is used for receiving and storing the ice blocks slid out of the spray ice-making device. The U-shaped ice storage basket is obliquely arranged in the middle of the cold water storage tank and extends out of the front side wall of the cold water storage tank in the axial direction of the spiral shaft to the ice outlet. The two ends of the spiral shaft are rotatably mounted on the U-shaped ice storage basket, and the ice outlet motor is mounted on the upper side of the ice outlet and drives the spiral shaft to convey the ice blocks stored in the U-shaped ice storage basket along the spiral trajectory to the ice outlet.

[0019] Preferably, the ice outlet upper side is further hung with an ice outlet door which is rotatably hinged at both sides of the ice outlet and automatically covers the whole side outlet by gravity. The ice block pushed out by the spiral automatic ice outlet device pushes the ice outlet door and opens the ice outlet by the upper hinged pivot as the pivot center, so that the ice block automatically slides out of the side outlet.

[0020] Preferably, the ice outlet door lower side inner edge is further provided with a leakage prevention and flow guide mechanism for collecting the ice chips or ice water melted from the U-shaped ice storage basket outlet and flowing back into the cold water storage tank, preventing the ice chips or ice water from leaking and dripping from the ice outlet. The leakage prevention and flow guide mechanism comprises an outer inclined plate and an inner inclined plate. The outer inclined plate inner side end is supported at the U-shaped ice storage basket outlet and is inclined outward relative to the ice outlet for guiding the ice block. The inner inclined plate is located at the outer inclined plate lower side and forms an inward inclined backflow channel between the two for the ice chip or ice water melted from the ice block to flow back into the cold water storage tank. The inner inclined plate outer side end is upwardly protruded and provided with a plurality of leakage grids which are arranged side by side, the upper side end surface is flushly connected with the outer inclined plate inclined surface, and the leakage grids are used for ice block sliding and ice chip or ice water melted from the ice block to flow back.

[0021] Preferably, the cold water storage tank lower part storage cavity bottom is provided with a water filter channel which is through the inner cavity bottom surface and is communicated with the machine shell outer wall surface along the bottom surface direction. The machine shell outer wall surface is provided with an opening which is directly communicated with the water filter channel. The storage cavity bottom is provided with a water inlet which enters the water filter channel. The water filter channel is detachably installed with a filter screen assembly which is inserted from the machine shell opening and is used for ice water filtering of the water inlet entering the water filter channel and regular dismounting and cleaning of the filter impurities from the opening. The water filter channel inner side end along the bottom surface direction is further provided with a water outlet pipeline which is conveniently communicated with the water pump water suction port for supplying the pure water filtered by the filter screen assembly.

[0022] Preferably, the filter screen assembly comprises a pull handle, a port sealing part and a ring-shaped filter port located at the water filter channel inner side. The port sealing parts are respectively arranged at both sides of the ring-shaped filter port along the circumferential direction and are respectively used for separating the water before and after the water pump water suction port filtering and sealing the outer leakage of the water filter channel outer side port. The ring-shaped filter port is connected to the pull handle inner side end surface and is arranged relative to the water filter channel water inlet. The ring-shaped filter port is provided with a filter screen along the circumferential direction and forms a ring-shaped filter cavity structure which is communicated with the water filter channel water inlet and blocks the filter impurities outside the cavity. The water inlet of the water outlet pipeline is arranged on the water filter channel inner wall beside the ring-shaped filter port.

[0023] The beneficial effects of the present application are: The present application integrates the spiral automatic ice discharging device, the spraying ice making device and the ice making water storage cavity in the cold water storage tank, realizes the automatic control of ice discharging, simplifies the structure of the whole machine, reduces the volume of the household ice maker and effectively improves the ice making efficiency and quality.

[0024] The evaporator is made of aluminum alloy die-cast copper pipe, which is integrally formed with the ice tray base and the ice making grid, effectively improving the contact area of the evaporative copper pipe and the ice making grid, the heat transfer efficiency of the evaporator, simplifying the processing technology of the evaporator and reducing the production cost. The integrally formed evaporator can effectively prevent the deformation of the ice making grid and effectively ensure that each ice block is completely consistent. Moreover, the integrally die-cast evaporator can realize 100% refrigeration and heat transfer of the evaporative copper pipe, effectively improve the heat transfer efficiency of the evaporator, and form a closed cavity for wrapping the entire ice tray base and ice making grid refrigeration source to prevent the energy loss of the refrigeration source, effectively improving the ice making efficiency of the evaporator. The partition cover installed on the outer side of the ice making grid can effectively prevent the ice making water from directly contacting the ice making grid and being frozen into ice by the ice making grid, effectively improving the quality of the discharged ice.

[0025] At the same time, the spraying water pump is installed outside the cold water storage tank. Compared with the water pump immersed in the water tank in the prior art, the present application can effectively simplify the circuit protection of the spraying water pump, improve the reliability and safety level of the water pump during use, and effectively prolong the service life of the spraying water pump. The foamed insulation cotton wrapped on the outer wall of the cold water storage tank and the ice discharging door hung on the ice discharging port and automatically covering the entire side outlet by gravity not only serves to insulate the inside of the tank body, prevent the loss of cold energy in the cold water storage tank, prevent the melting of ice blocks during storage and the temperature change of ice water in the storage cavity, but also prevents foreign matter from entering the cavity inside the cold water storage tank, improving the cleanliness level during ice making.

[0026] In addition, the filter screen assembly is arranged in the water outlet channel at the bottom side of the cold water storage tank and can be directly disassembled from the outside of the shell, effectively filtering impurities in the water body, preventing foreign matter from entering the spraying ice making device through the spraying water pump, effectively improving the cleanliness of the ice blocks, and facilitating disassembly and cleaning during use, simplifying the cleaning and maintenance of the ice maker and improving the use convenience.

[0027] The present application will be further described in detail in conjunction with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the main view of the exploded structure of the present application; Figure 2 is the side view of the exploded structure of the present application; Figure 3 is the main view of the sectional structure of the present application; Figure 4 is the rear view of the sectional structure of the present application; Figure 5 is the sectional structure of the present application when ice is being produced; Figure 6 is the sectional structure of the present application when ice is being produced; Figure 5 is the sectional structure of the present application when ice is being produced; Figure 7 is the sectional structure of the present application when ice is being produced; Figure 8 is the sectional structure of the present application when ice is being produced; Figure 9 is the sectional structure of the present application when ice is being produced; Figure 10 is the rear view of the sectional structure of the present application; Figure 11 is the front view of the sectional structure of the present application; Figure 12 is the front view of the sectional structure of the present application; Figure 13 is the front view of the sectional structure of the present application; Figure 14 is the front view of the sectional structure of the present application; Figure 15 is the front view of the sectional structure of the present application; Figure 16 is the front view of the sectional structure of the present application; Figure 17 is the front view of the sectional structure of the present application; Figure 18 is the front view of the sectional structure of the present application; Figure 19 is the front view of the sectional structure of the present application; Figure 20 is the front view of the sectional structure of the present application; Figure 21Is the rear view of the evaporator structure of the present application enlarged schematic view; Figure 22 Is the front view of the evaporator structure of the present application enlarged schematic view; Figure 23 Is the right view of the evaporator structure of the present application enlarged schematic view; Figure 24 Is the top view of the evaporator structure of the present application enlarged schematic view; Figure 25 Is the cross-sectional structure of the evaporator of the present application enlarged schematic view; Figure 26 Is the local structure schematic view of the ice outlet door closed state of the invention; Figure 27 Is the local structure schematic view of the ice outlet door opened after ice outlet state of the invention; Figure 28 Is the three-dimensional structure of the ice outlet door assembly of the invention enlarged schematic view; Figure 29 Is the main view structure of the enlarged schematic view in Figure 28 ; Figure 30 Is the rear view structure of the enlarged schematic view in Figure 28 ; Figure 31 Is the main view structure of the enlarged schematic view of the ice outlet door of the invention; Figure 32 Is the three-dimensional structure of the upper cover and ice outlet door assembly of the invention enlarged schematic view; Figure 33 Is the rear view of the three-dimensional structure of the upper cover, ice outlet door and lower end cover assembly of the invention enlarged schematic view; Figure 34 Is the local cross-sectional structure of the filter screen assembly of the present invention schematic view; Figure 35 Is the local longitudinal cross-sectional structure of the filter screen assembly of the present invention schematic view; Figure 36 Is the flow direction of the filter screen assembly of the present invention and the enlarged structure schematic view after disassembly; Figure 37 Is the structure schematic view of the filter screen assembly after disassembly of the present invention; Figure 38 Is the bottom view of the cold water storage tank of the present invention enlarged structure schematic view; Figure 39 Is the back view of the three-dimensional structure of the cold water storage tank of the present invention enlarged structure schematic view; Figure 40 Is the cross-sectional structure of the cold water storage tank of the present invention enlarged schematic view; Figure 41 Is the main view of the filter screen assembly of the present invention enlarged schematic view of the structure; Figure 42 is a front perspective view of the filter assembly of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0030] In the description of the present application, one or more is meant to be one or more, and multiple is meant to be two or more than two. Greater than, less than, more than, etc. are understood as not including the number, and above, below, within, etc. are understood as including the number. If the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In addition, in the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above words in the present application can be reasonably determined in combination with the specific content of the technical solutions.

[0032] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0033] A spray-type ice maker, such asFigures 1 to 14 As shown, for full automatic ice making and ice, including the top cover 1, the shell 2 and the base plate 3, the top cover 1 is capped fixed on the top side of the square shell 2, the base plate 3 is supported and fixed on the bottom end of the shell 2; The lower side of the shell 2 is provided with a compressor 4 and a condenser 5 located on one side of the base plate 3 and arranged side by side, and a fan 6 is installed beside the condenser 5, which directly blows air to the outside of the shell 2, and is used for air cooling of the condenser 5 in the cavity; The compressor 4 and the condenser 5 are installed in the shell 2, and the top end of the cold water storage tank 7 is sealed by the top cover 1, and the cold water storage tank 7 is in the shape of "7" shaped cavity structure; The middle part of the cold water storage tank 7 is provided with an upper ice outlet a, which is provided with a spiral automatic ice outlet device 8 for automatically supplying ice outwardly from the top end side of the cold water storage tank 7; The upper side of the spiral automatic ice outlet device 8 is provided with a rear upper part located in the cold water storage tank 7, and the compressor 4 and the condenser 5 are connected to form a refrigeration system by a refrigerant pipeline; The cold water storage tank 7 is used for providing ice making water for the spray ice making device 9, and forming a storage cavity at the bottom for receiving the cold water falling from the spray ice making device 9 and the spiral automatic ice outlet device 8; The outer wall of the storage cavity at the lower part of the cold water storage tank 7 is also provided with a spray water pump 10 located in the shell 2, which is used for pumping the ice water stored at the bottom of the cold water storage tank 7 to the spray ice making device 9 for spraying ice. Moreover, a layer of foamed insulation cotton 11 is integrally wrapped on the outer wall of the cold water storage tank 7, which is located in the shell 2 and is used for heat preservation of the inside of the tank; A raw water tank 12 is provided on the top of the cold water storage tank 7, which is located beside the spray ice making device 9 and is used for water replenishment to the storage cavity at the lower part of the cold water storage tank 7; The top end of the cold water storage tank 7 is capped with a top cover plate which seals the corresponding cavity of the spray ice making device 9 and opens an opening for the raw water tank 12.

[0034] As shown in Figure 12 and Figure 13 , a water outlet pump 8' is also provided beside the top end side of the spiral automatic ice outlet device 8, which is connected to the storage cavity of the cold water storage tank 7 through a pipeline, and a cold water outlet pipe 80' is provided beside the ice outlet a, which is connected to the water outlet pump 8' and supplies the ice water stored in the cold water storage tank 7 outwardly; Of course, compared with the drain pipe connected to the bottom of the storage cavity in the cold water storage tank 7, which directly penetrates the shell 2 to drain water outwardly, when in use, the entire ice maker needs to be moved to a place with a basin or the back facing outward for drainage and cleaning. In this embodiment, all the ice water stored in the storage cavity of the cold water storage tank 7 can be pumped out by the water outlet pump 8' and the cold water outlet pipe 80', and the inside of the cold water storage tank 7 can be emptied for cleaning and maintenance of the entire cavity.

[0035] As shown in Figure 1 , Figure 2 , Figures 15 to 24As shown, the spray ice-making device 9 comprises a spray evaporator 90 for ice-making, a spray pipe 91, a spray seat 92, and an ice block water filtering grid 93. The spray pipe 91 is installed on the spray seat 92 and is connected to the spray water pump 10 through a pipeline. A plurality of fan-shaped nozzles 910 are installed on the spray pipe 91 and correspond to each column of ice-making grids 902 on the lower side of the spray evaporator 90. The ice block water filtering grid 93 is arranged opposite the ice-making grids 902 on the lower side of the spray evaporator 90 and is obliquely installed on the upper side of the spray seat 92. The ice block water filtering grid 93 forms an equal-interval grid structure that facilitates the spray water sprayed by the fan-shaped nozzles 910 to pass through and the ice blocks falling from the ice-making grids 902 to be guided along the inclined surface and the melted ice water to be filtered out at the same time. A plurality of rotating swing arm plates 94 are rotationally connected to the lower side of the spray evaporator 90 opposite the ice block sliding-out side on the ice block water filtering grid 93. The rotating swing arm plates 94 are coaxially arranged side by side, are automatically set to be downwardly inclined by their own gravity, and are surrounded by the spray seat 92 and the inner wall of the cold water storage tank 7 to form a closed space that prevents the spray water sprayed by the fan-shaped nozzles 910 from overflowing and facilitates the ice blocks falling on the ice block water filtering grid 93 to push the rotating swing arm plates 94 to slide out after being deflected.

[0036] As shown, Figures 15 to 24 The spray evaporator 90 comprises an evaporative copper pipe 900, an ice tray base 901, and a plurality of array-distributed ice-making grids 902. The evaporative copper pipe 900 is connected to the ice-making refrigeration system. The ice-making grids 902 are arranged on the lower end surface of the ice tray base 901 and are integrally formed by aluminum alloy die casting. The evaporative copper pipe 900 is sequentially bent to form double rows of curved channels that directly exchange cold energy with each ice block forming cavity in the ice-making grids 902 and are sequentially and circularly connected.

[0037] The bottom surfaces of all the ice-making grids 902 are flush and integrally die cast on the other side of the ice-making grid 902 opposite the ice outlet. The ice tray base 901 and the evaporative copper pipe 900 are protrusively arranged outside the bottom surfaces of all the ice-making grids 902. In addition, the lower side of the corresponding ice-making grid 902 in the integrally formed ice tray base 901 and ice-making grid 902 is further provided with a partition cover 903 that is integrally formed by using a silica gel or plastic material that insulates heat conduction, avoids the spray water from directly contacting the ice-making grids 902 to be frozen into ice by the ice-making grids 902, and avoids the ice blocks from being connected. The partition cover 903 is provided with an ice outlet corresponding to each ice block forming cavity in the ice-making grid 902. The outer side of the ice tray base 901 is further provided with a rear shell seat 904 that is integrally formed by using a silica gel or plastic material that insulates heat conduction and is connected to the partition cover 903 to form a closed cavity to wrap the entire ice tray base 901 and ice-making grid 902 to prevent the cold source energy from dissipating.

[0038] As shown,Figures 15 to 24 As shown, the evaporative copper pipe 900 is sequentially and circularly bent to form a curved channel which is symmetrically distributed in S shape with the length direction as the center and directly exchanges cold energy with each ice block forming cavity of the ice tray 902. An S-shaped protruding portion corresponding to the inner cavity of each ice tray 902 is provided on the rear side of the ice tray 902 and is integrally pressure cast with the ice tray 902. The S-shaped protruding portion is the ice tray base 901. The subsequent similar parts will not be described one by one. A negative pressure demolding hole 13 for rapid demolding of ice blocks in the cavity and preventing negative pressure adsorption on the inner cavity bottom of each ice block forming cavity of the ice tray 902 is also provided. The S-shaped protruding portion along the extension direction of the evaporative copper pipe 900 forms a drainage flow channel 14 for flowing and draining the melt water of all negative pressure demolding holes 13. A flow channel 15 for concentrating and flowing the melt water in the drainage flow channel 14 is also provided on the rear end surface of the ice tray 902 with the length direction of the ice tray 902 as the symmetric center. A plurality of drainage holes 16 for draining the water accumulated in the rear cavity corresponding to the front end surface of the ice tray 902 are provided in the flow channel 15. A drainage port 17 for draining the water from the front end surface of the ice tray 902 is also provided at the outlet end of the flow channel 15 corresponding to the edge of the ice tray 902. A layer of food-grade Teflon protective layer 18 is also sprayed on the outer surface of the ice tray 902.

[0039] As shown, the evaporative copper pipe 900 is sequentially and circularly bent to form a curved channel which is symmetrically distributed in S shape with the length direction as the center and directly exchanges cold energy with each ice block forming cavity of the ice tray 902. An S-shaped protruding portion corresponding to the inner cavity of each ice tray 902 is provided on the rear side of the ice tray 902 and is integrally pressure cast with the ice tray 902. The S-shaped protruding portion is the ice tray base 901. The subsequent similar parts will not be described one by one. A negative pressure demolding hole 13 for rapid demolding of ice blocks in the cavity and preventing negative pressure adsorption on the inner cavity bottom of each ice block forming cavity of the ice tray 902 is also provided. The S-shaped protruding portion along the extension direction of the evaporative copper pipe 900 forms a drainage flow channel 14 for flowing and draining the melt water of all negative pressure demolding holes 13. A flow channel 15 for concentrating and flowing the melt water in the drainage flow channel 14 is also provided on the rear end surface of the ice tray 902 with the length direction of the ice tray 902 as the symmetric center. A plurality of drainage holes 16 for draining the water accumulated in the rear cavity corresponding to the front end surface of the ice tray 902 are provided in the flow channel 15. A drainage port 17 for draining the water from the front end surface of the ice tray 902 is also provided at the outlet end of the flow channel 15 corresponding to the edge of the ice tray 902. A layer of food-grade Teflon protective layer 18 is also sprayed on the outer surface of the ice tray 902. Figures 15 to 24 As shown, the evaporative copper pipe 900 is sequentially and circularly bent to form a curved channel which is symmetrically distributed in S shape with the length direction as the center and directly exchanges cold energy with each ice block forming cavity of the ice tray 902. An S-shaped protruding portion corresponding to the inner cavity of each ice tray 902 is provided on the rear side of the ice tray 902 and is integrally pressure cast with the ice tray 902. The S-shaped protruding portion is the ice tray base 901. The subsequent similar parts will not be described one by one. A negative pressure demolding hole 13 for rapid demolding of ice blocks in the cavity and preventing negative pressure adsorption on the inner cavity bottom of each ice block forming cavity of the ice tray 902 is also provided. The S-shaped protruding portion along the extension direction of the evaporative copper pipe 900 forms a drainage flow channel 14 for flowing and draining the melt water of all negative pressure demolding holes 13. A flow channel 15 for concentrating and flowing the melt water in the drainage flow channel 14 is also provided on the rear end surface of the ice tray 902 with the length direction of the ice tray 902 as the symmetric center. A plurality of drainage holes 16 for draining the water accumulated in the rear cavity corresponding to the front end surface of the ice tray 902 are provided in the flow channel 15. A drainage port 17 for draining the water from the front end surface of the ice tray 902 is also provided at the outlet end of the flow channel 15 corresponding to the edge of the ice tray 902. A layer of food-grade Teflon protective layer 18 is also sprayed on the outer surface of the ice tray 902. The spacing between the ice cube forming cavities in the array on the ice tray 902 in this embodiment corresponds to the outer end face being flush, and the inner side face on the partition cover 903 corresponding to the ice outlet is flush and connected to the spacing face between the ice cube forming cavities, so that there is no gap between the inner side face of the partition cover 903 and the spacing face between the ice cube forming cavities, preventing water from being stored in the gap, which in turn causes the gap to expand and store more water when ice forms, which in turn extends into the ice cube forming cavities and affects the release of the ice cubes.

[0040] As shown in Figures 15 to 24 , three positioning columns 19 are further protruding and extending in the middle of the rear side of the partition cover 903, and are installed in the gaps between the adjacent ice cube forming cavities on the ice tray 902. Correspondingly, the gaps between the adjacent ice cube forming cavities are provided with a positioning hole 20 matched with each positioning column 16 and a drain hole 21 communicated with the drain hole 16 in the ice tray 902. Moreover, a buckle structure is further provided at the circumferential abutment of the rear shell seat 904, which is embedded with the rear side edge of the partition cover 903.

[0041] In this embodiment, a drain channel is formed on the back of the evaporator and communicated with the front side, which synchronously discharges the melt water in the rear cavity when the ice is discharged, improves the efficiency of subsequent ice making of the evaporator, effectively discharges the water seeping into the gap, improves the quality of ice making, and reduces the breeding of bacteria. Moreover, the evaporator is integrally formed by evaporating copper pipe 900 and aluminum alloy die casting, which effectively improves the contact area of the evaporating copper pipe 900 and the ice tray 902, improves the heat transfer efficiency of the evaporator, and simplifies the processing technology of the evaporator and reduces the production cost. At the same time, the integrally formed evaporator can effectively prevent the deformation of the ice tray 902, and effectively ensure that each ice tray produces completely consistent ice cubes.

[0042] As shown in Figures 1 to 8 , the spiral automatic ice discharging device 8 includes a U-shaped ice storage basket 80, a spiral shaft 81 and an ice discharging motor 82. The U-shaped ice storage basket 80 is used to receive and store the ice cubes discharged by the spray ice making device 9. The U-shaped ice storage basket 80 is obliquely arranged in the middle of the cold water storage tank 7 and extends out of the front side wall of the cold water storage tank 7 along the axial direction of the spiral shaft 81 to the ice discharging port a. The two ends of the spiral shaft 81 are rotatably installed on the U-shaped ice storage basket 80, and the ice discharging motor 82 is installed on the upper side of the ice discharging port a and drives the spiral shaft 81 to convey the ice cubes stored in the U-shaped ice storage basket 80 along the spiral track to the ice discharging port a and push them out. Moreover, an ice discharging door 22 is hung on the upper side of the ice discharging port a, which is rotatably hinged on both sides of the ice discharging port a and automatically covers the entire side outlet by relying on gravity. The ice cubes pushed out by the spiral automatic ice discharging device 8 along the axial direction of the spiral shaft 81 push the ice discharging door 22, which is opened by rotating upward around the upper hinge shaft as the center, so that the ice cubes can automatically slide out and fall along the side.

[0043] As shown in Figures 1 to 8 ,Figures 26 to 33 As shown, the upper cover 23 is arranged on the upper side of the ice outlet a for suspending the ice outlet door 22 vertically by gravity and shielding the lower space, and the clamping groove is arranged on both sides of the upper cover 23 for clamping the upper two ends of the ice outlet door 22. The lower side of the upper cover 23 near the spiral automatic ice outlet device 8 is further connected with the side lower end cover 24 for abutting and blocking the entire outlet of the ice outlet door 22, and the bottom end surface of the lower end cover 24 is inclined for automatic sliding of the ice block. The other side of the bottom end surface of the lower end cover 24 is suspended to form an ice outlet cavity. The torsion spring 25 with a torsion smaller than the gravity of each ice block is further sleeved on the hinge shaft at the upper two ends of the ice outlet door 22 for driving the ice outlet door 22 to apply a certain pre-tightening sealing force to the side outlet.

[0044] As shown in the drawings, the ice outlet door 22 has a structure of being narrow at the bottom and wide at the top, and the ice outlet door 22 has an angle B with the vertical direction of the ice outlet a for conveniently abutting and blocking the entire outlet by gravity, and the angle B ranges from 2° to 15°. There is also a gap C between the left and right sides of the ice outlet door 22 and the two sides of the lower end cover 24 for ensuring smooth rotation, and the gap C ranges from 0.5 mm to 1.5 mm.

[0045] As shown in the drawings, Figure 6 , Figures 26 to 33 As shown, the inner edge of the lower end cover 24 corresponding to the lower side of the ice outlet door 22 is further provided with a leakage prevention and flow guide mechanism 26 for collecting the ice chips or ice water melted from the U-shaped ice storage basket 80 and flowing back to the internal cold water storage tank 7, and preventing the ice chips or ice water from leaking and dripping from the ice outlet a. The leakage prevention and flow guide mechanism 26 includes an outer inclined plate 260 and an inner inclined plate 261. The inner side end of the outer inclined plate 260 is connected to the outlet of the U-shaped ice storage basket 80 and is inclined outward relative to the ice outlet a for guiding the ice block. The inner inclined plate 261 is located on the lower side of the outer inclined plate 260 and forms a return flow channel 262 between them for the ice chips or ice water melted from the ice block to flow back to the internal cold water storage tank 7. The outer side end of the inner inclined plate 261 is provided with a plurality of leakage grids 263 arranged side by side and connected with the inclined surface of the outer inclined plate 260 at the upper end surface, for the ice block to slide out and the ice chips or ice water melted from the ice block to flow down.

[0046] In this embodiment, the ice outlet door 22 is hung on the upper side of the ice outlet a and is rotatably connected to the two sides of the ice outlet a. The ice outlet door 22 is automatically rotated to cover the entire side outlet by its own gravity and the auxiliary torsion spring 25, which simplifies the control mode of the ice outlet a, saves the installation space of the electric appliance, and improves the reliability of the control of the ice outlet a while simplifying the structure.

[0047] As shown in the drawings, Figures 34 to 42As shown, a filter water channel 27 is provided at the bottom of the storage cavity 70 of the lower part of the cold water storage tank 7, which penetrates the bottom surface of the inner cavity and communicates with the outer wall surface of the shell in the direction of the bottom surface. An opening is provided on the outer wall surface of the shell, which is directly connected to the filter water channel 27. The bottom of the storage cavity 70 is provided with a water inlet 71 that enters the filter water channel 27. A filter screen assembly 72 is detachably installed in the filter water channel 27, which is inserted from the opening of the shell 2 and used for ice water filtration at the water inlet 71 and regular removal of filtered impurities from the opening. The filter water channel 27 is also provided with a water outlet pipe 73 at the inner side end in the direction of the bottom surface, which is connected to the water inlet of the spray water pump 10 for pure water supply.

[0048] The filter screen assembly 72 includes a pull handle 720, a port sealing part 721, and a ring-shaped filter port 722 inside the filter water channel 27. The port sealing part 721 is arranged on both sides of the ring-shaped filter port 722 in the circumferential direction, respectively, for separating the water before and after the water inlet of the spray water pump 10 and sealing the outer port of the filter water channel 27. The ring-shaped filter port 722 is connected to the inner side end surface of the pull handle 720 and is arranged opposite to the water inlet of the filter water channel 27. The ring-shaped filter port 722 is provided with a filter screen in the circumferential direction and forms a ring-shaped filter cavity structure that is connected to the water inlet of the filter water channel 27 and blocks the filtered impurities outside the cavity. The water inlet of the water outlet pipe 73 is arranged on the inner wall of the filter water channel 27 beside the ring-shaped filter port 722.

[0049] In this embodiment, the pull handle 720, the port sealing part 721, and the ring-shaped filter port 722 are integrally formed in a cylindrical cavity structure made of environmentally friendly plastic material. The ring-shaped filter port 722 is provided with a plurality of evenly spaced ribs 28 in the circumferential direction, and a filter screen is arranged between the ribs 28 to block the filtered impurities outside the cavity and at the water inlet of the filter water channel 27. The port sealing part 721 is provided with three sealing rings that are arranged on the outer periphery of the ring-shaped filter port 722 in a ring-shaped nested manner. Two sealing rings are arranged on the outer side end, and one sealing ring is arranged on the inner side end for isolation from unfiltered ice water and filtered impurities.

[0050] In the embodiment, the filter screen assembly 72 adopts an external pressure type filtering mode, water flows from the outer wall of the filter screen to the inside for collection and filtration, and the impurities are blocked in the external space outside the filter screen. When the filter screen is blocked by too many foreign matters, the filter screen assembly 72 is pulled out from the back of the ice maker shell for cleaning, at the same time, the residual impurities and remaining ice water in the cold water storage tank 7 are discharged from the filter water channel 27 to the outside of the shell, realizing the synchronous cleaning of the inside of the cold water storage tank 7 and the filter water channel 27. Moreover, the spray water pump is installed in an external manner at the bottom of the cold water storage tank 7, the filter water channel 27 and the water outlet pipeline are arranged at the bottom side of the cold water storage tank 7, the filter screen assembly 72 is detachably installed in the filter water channel 27 and inserted from the open part of the shell, has a large filtering area and can effectively improve the effective duration of continuous filtration; during use, the ice water entering the filter water channel 27 is filtered by the filter screen assembly 72 and then supplied to the spray water pump through the water outlet pipeline, when the filter screen is blocked by foreign matters, the entire filter screen assembly 72 is regularly detached from the open part of the shell, the filter impurities are cleaned, the effective filtration of the water pump is ensured, the water pump is prevented from being blocked by foreign matters and stuck, the machine cannot work normally, the service life of the machine is improved, and the operation process is simple and convenient.

[0051] The above-described embodiments are only the preferred embodiments of the present application, and do not limit the implementation scope of the present application. Any equivalent changes made according to the shape, structure and principle of the present application should be covered in the protection scope of the present application.

Claims

1. A spray ice maker for fully automatic ice making and dispensing, characterized in that: It includes a top cover, a shell and a base plate, wherein the top cover is fixed to the top side of the square shell, and the base plate is supported and fixed to the bottom end of the shell; The lower side of the shell is equipped with a compressor and a condenser located on one side of the base plate and arranged in parallel. A fan is installed next to the condenser to blow air directly to the outside of the shell for cooling the condenser in the inner cavity. A cold water storage tank having a "7"-shaped bucket-shaped cavity structure and a top sealed by the top cover is installed in the shell beside the compressor and the condenser; The middle part of the cold water storage tank is provided with an upper ice outlet which is inclined and passes through the side of the top front end of the cold water storage tank and is used for automatically supplying ice cubes outward; A spray ice-making device is provided on the upper side of the spiral automatic ice-dispensing device and is located at the upper rear part of the cold water storage tank and is connected to the compressor and the condenser through a refrigerant pipeline to form a refrigeration system; The cold water storage tank is used to provide ice-making water for the spray ice-making device, and has a storage cavity at the bottom for receiving cold water dropped by the spray ice-making device and the spiral automatic ice-dispensing device; A spray water pump is also installed on the outer wall of the storage cavity at the lower part of the cold water storage tank. The pump is located in the shell and is used to pump the ice water stored at the bottom of the cold water storage tank to the spray ice making device through a pipeline for spraying and making ice.

2. A spray ice maker according to claim 1, characterized in that: The top of the cold water storage tank is also provided with a raw water tank located on the upper side of the spiral automatic ice-discharging device beside the spray ice-making device and used to replenish water in the storage cavity at the lower part of the cold water storage tank.

3. The spray ice maker according to claim 1, characterized in that: The outer wall of the cold water storage box is also integrally wrapped with a layer of foam insulation cotton located inside the shell for heat preservation inside the box.

4. The spray ice maker according to claim 1, characterized in that: The spray ice making device includes a spray evaporator for making ice, a spray pipe, a spray seat and an ice filter grid. The spray pipe is installed on the spray seat and is connected to the spray water pump through a pipeline. The spray pipe is equipped with a plurality of fan-shaped nozzles corresponding to each column of ice making grids on the lower side of the spray evaporator. The ice filter grid is arranged opposite to the ice making grid on the lower side of the spray evaporator and is installed obliquely on the upper side of the spray seat, and forms an equal-gap grid structure that facilitates the passage of water sprayed by the fan-shaped nozzle and the drainage of ice cubes in the ice making grid along the inclined surface when the ice cubes fall, and simultaneously filters out the melted ice water; The lower side of the spray evaporator is rotatably connected to the side where the ice cubes on the ice filter grid slide out, and is arranged coaxially and parallel and automatically droops by its own gravity. At the same time, it is surrounded by the spray seat and the inner wall of the cold water storage tank to form a closed space to prevent the spray water from the fan-shaped nozzle from overflowing, and a rotating swing arm plate that facilitates the ice cubes sliding off the ice filter grid to push it to deflect and slide out.

5. The spray ice maker according to claim 4, characterized in that: The spray evaporator includes an evaporation copper tube, an ice tray base and a plurality of array-distributed ice making grids, and the evaporation copper tube is connected to the ice making refrigeration system; The ice making tray is arranged on the lower end surface of the ice tray base, and the two are formed into an integral structure by die-casting of aluminum alloy; The evaporation copper tube is bent in sequence relative to each ice forming cavity in the ice making tray to form one or two rows of curved channels that directly exchange cold energy with each ice forming cavity in the ice making tray and are circulated and connected in sequence; The ice tray base is along the extending direction of the evaporation copper tube, and when the ice tray base is integrally die-casted with the ice making grid, the evaporation copper tube is buried and installed on the corresponding side of the inner cavity of each ice making grid.

6. The spray ice maker according to claim 5, characterized in that: Relative to the other side of the ice outlet of the ice making tray, the bottom surfaces of all adjacent ice making trays are arranged flush and integrally die-cast, and the ice tray base and the evaporation copper tube are protrudingly arranged on the outer sides of the bottom surfaces of all ice making trays.

7. The spray ice maker according to claim 5, characterized in that: The bottom of the inner cavity of each ice cube forming cavity on the ice making tray is also provided with a negative pressure demoulding hole for quickly demoulding the ice cubes in the ice making tray and preventing negative pressure adsorption at the bottom of the inner cavity.

8. The spray ice maker according to claim 5, characterized in that: A plurality of drainage holes are provided on the top surfaces between the ice making grids, which are connected to the lower end surfaces of the ice making grids for discharging ice, and are used to discharge water accumulated in the rear cavity corresponding to the ice tray base when discharging ice. A drainage channel connected to all the drainage holes is formed at the intervals between the two rows of ice making grids.

9. The spray ice maker according to claim 5, characterized in that: The integrally formed ice tray base and the lower side of the corresponding ice making grid in the ice making grid are also buckled with a partition cover which is integrally formed with silicone or plastic material to isolate heat conduction and prevent the spray water from directly contacting the ice making grid and being frozen into ice by the ice making grid to cause the ice cubes to be connected. The partition cover is provided with an ice outlet corresponding to each ice cube forming cavity on the ice making grid.

10. The spray ice maker according to claim 9, characterized in that: The outer side of the ice tray base is also sealed with a rear shell seat which is integrally formed of silicone or plastic material that insulates heat conduction and is connected to the partition cover to form a closed cavity to wrap the entire ice tray base and the ice making grid cooling source to prevent the cooling source energy from dissipating.

11. The spray ice maker according to claim 1, characterized in that: The spiral automatic ice-discharging device includes a U-shaped ice storage basket, a spiral shaft and an ice-discharging motor. The U-shaped ice storage basket is used to receive and store ice cubes that slide out of the spray ice-making device. The U-shaped ice storage basket is arranged in an inclined shape in the middle of the cold water storage tank and extends from the front side wall of the cold water storage tank to the ice outlet along the axial direction of the spiral shaft; Both ends of the spiral shaft are rotatably mounted on the U-shaped ice storage basket, and the ice discharging motor is mounted on the upper side of the ice outlet and drives the spiral shaft to transport the ice cubes stored in the U-shaped ice storage basket along a spiral trajectory to the ice outlet and push them out.

12. The spray ice maker according to claim 11, characterized in that: An ice outlet door is also hoisted on the upper side of the ice outlet, with both ends rotatably hinged on both sides of the ice outlet and automatically covering the entire side outlet by gravity. The ice cubes pushed out by the spiral automatic ice outlet device along the axial direction of the spiral shaft push the ice outlet door, and the ice outlet is turned upward with the hinged shaft on the upper side as the rotation center to open the ice outlet, so that the ice cubes can automatically slide out and fall along the side.

13. The spray ice maker according to claim 12, characterized in that: The ice outlet door is further provided with an anti-leakage guide mechanism at the lower inner edge for collecting ice chips or ice cubes at the outlet of the U-shaped ice storage basket, melting ice water and returning it to the cold water storage tank, thereby preventing ice chips or ice water from leaking and dripping from the ice outlet. The anti-leakage guide mechanism includes an outward-inclined plate and an inward-inclined plate, the inner end of the outward-inclined plate being connected to the outlet of the U-shaped ice storage basket and tilted outward relative to the ice outlet for guiding out the ice cubes. The inward-inclined plate is located under the outward-inclined plate, and an inward-inclined reflux channel is formed therebetween for the ice chips or ice cubes to melt and flow back into the cold water storage tank. The outer end of the inward-inclined plate is protruding upward and is provided with a plurality of leakage grids arranged in parallel, with the upper end faces being flush with the inclined surface of the outward-inclined plate, for the ice cubes to slide out and the ice chips or ice cubes to melt and leak and intercept the ice water.

14. The spray ice maker according to claim 12, characterized in that: The bottom of the storage cavity at the lower part of the cold water storage tank is provided with a water filter channel that penetrates the bottom surface of the inner cavity and is connected to the outer wall surface of the casing along the bottom surface. The outer wall surface of the casing is provided with an opening that directly communicates with the water filter channel. The bottom of the storage cavity is provided with a water inlet that enters the water filter channel. The water filter channel is detachably provided with a filter assembly which is inserted from the opening of the housing and is used for filtering ice water entering the water filter channel from the water inlet and is periodically removed from the opening to filter out impurities. The inner side end of the water filtering channel along the bottom surface direction is also provided with a water outlet pipeline which is connected to the water intake port of the water pump to supply the pure water filtered by the filter assembly.

15. The spray ice maker according to claim 12, characterized in that: The filter assembly includes a pull-out handle, a port sealing portion, and an annular filter port located inside the water filter channel. The port sealing portions are respectively arranged in an annular shape on both sides of the annular filter port along the circumferential direction, and are used to separate the water body before and after filtration of the water pump's water intake port and to seal leakage at the outer port of the water filter channel; The annular filter port is connected to the inner end surface of the pull handle and is arranged opposite to the water inlet of the water filter channel; A filter net is arranged around the annular filter port, forming an annular filter cavity structure that is connected to the water inlet of the water filter channel and blocks filtered impurities outside the cavity. The water inlet of the outlet pipe is arranged on the inner wall of the water filter channel beside the annular filter port.

Images