CN217838537U

CN217838537U - Water purifier filter element and water purifier

Info

Publication number: CN217838537U
Application number: CN202222000342.6U
Authority: CN
Inventors: 桂鹏; 郑跃东
Original assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Current assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-18
Anticipated expiration: 2032-07-29

Abstract

The utility model relates to a water purification technology field provides a water purifier filter core and water purifier. The filter element of the water purifier comprises a shell and a filter element assembly, wherein the filter element assembly comprises a fresh-keeping bin component and a filter element body, a water storage cavity is formed between the fresh-keeping bin component and the shell, and a first water inlet which is suitable for communicating a first end of the filter element body with a water inlet flow passage is formed in the fresh-keeping bin component; a second water outlet flow channel is formed in the filter element body and is respectively communicated with the water storage cavity and the pure water outlet flow channel. Through the outside at the filter core body setting storehouse part that keeps fresh, form the water storage chamber between storehouse part that keeps fresh and the casing, the part pure water after the filter core body filters can enter into the water storage chamber and save, treats the start back next time, and the pure water in the water storage chamber loops through second outlet flow way, third runner and the output of pure water outlet flow way under the pressure effect to effectively solve the problem of first glass of water. Because the fresh-keeping storehouse part is integrated inside the filter core and the thickness is thinner, the volume of the water purifier is effectively reduced.

Description

Water purifier filter element and water purifier

Technical Field

The utility model relates to a water purification technology field especially relates to water purifier filter core and water purifier.

Background

The main stream of the household water purification market is the reverse osmosis water purifier at present, the household water purification market is deeply loved by users due to extremely high filtration precision and service cycle, and the market proportion reaches more than 90%. As is known, the reverse osmosis filter element has the phenomenon of first cup of water (the desalination rate is rapidly reduced due to ion permeation after the reverse osmosis filter element is stopped for a period of time), pure water backflow, double-membrane mutual flushing and water drive tank flushing are adopted in the industry for relieving, and although a certain effect is achieved, the problems of large overall volume and complex structure exist.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least one of the technical problems existing in the related art. Therefore, the utility model provides a water purifier filter core has effectively reduced the volume of filter core, has simplified the structure of filter core, has avoided the appearance of first glass of water problem.

The utility model discloses still provide a water purifier.

According to the utility model discloses water purifier filter core of first aspect embodiment includes:

a housing formed with a water inlet flow passage and a pure water outlet flow passage;

the filter element assembly is arranged inside the shell and comprises a fresh-keeping bin component and a filter element body, a water storage cavity suitable for storing water is formed between the fresh-keeping bin component and the shell, the filter element body is arranged inside the fresh-keeping bin component, and a first water inlet suitable for communicating a first end of the filter element body with the water inlet flow passage is formed in the fresh-keeping bin component; a second water outlet flow passage is formed inside the filter element body and is respectively communicated with the water storage cavity and the pure water outlet flow passage.

According to the utility model discloses water purifier filter core through the outside at filter core body setting storehouse part that keeps fresh, forms the water storage chamber between storehouse part that keeps fresh and the casing, and the part pure water after filter through filter core body can enter into the water storage chamber and save, treats the start back next time, and the pure water of water storage intracavity loops through second water outlet flow way, third runner and pure water outlet flow way output under the pressure effect to effectively solve the problem of first glass of water. The fresh-keeping bin component has a simple structure, so that the fresh-keeping bin component has extremely high stability; because the fresh-keeping bin component is integrated in the filter element, the volume of the water purifier is effectively reduced.

According to the utility model discloses an embodiment still includes:

and the central pipe is inserted in the second water outlet flow channel, a plurality of through holes communicated with the filter element body are formed on the peripheral surface of the central pipe, the first end of the central pipe is communicated with the water storage cavity, and the second end of the central pipe is communicated with the pure water outlet flow channel.

According to the utility model discloses an embodiment, fresh-keeping storehouse part includes:

the fresh-keeping bin body is sleeved on the periphery of the filter element body and is in sealing fit with the peripheral surface of the filter element body;

the first end cover is arranged at one end of the fresh-keeping bin body and is respectively in sealing fit with the first end of the filter element body and the fresh-keeping bin body; the second end of the central tube is arranged on the first end cover in a penetrating way;

the second end cover is arranged at the other end of the fresh-keeping bin body and is respectively in sealing fit with the second end of the filter element body and the fresh-keeping bin body; and a water through hole is formed in the second end cover and is respectively communicated with the first end of the central pipe and the water storage cavity.

According to the utility model discloses an embodiment, the storehouse body that keeps fresh include the colloid and twine in the flexonics spare of filter core body outer peripheral face, the colloid cladding in the filter core body outer peripheral face, flexonics spare inlays to be located in the colloid.

According to an embodiment of the present invention, the glue is a food grade glue.

According to an embodiment of the utility model, the thickness of fresh-keeping storehouse body is 1-3mm.

According to the utility model discloses an embodiment, the casing still is formed with waste water outlet flow way, the inside of filter core body still forms first outlet flow way, first outlet flow way with waste water outlet flow way intercommunication.

According to the utility model discloses an embodiment, first end cover is close to the position of center tube forms first delivery port, first delivery port respectively with waste water outlet channel with first outlet channel intercommunication.

According to the utility model discloses an embodiment, the second end cap orientation one side of filter core body is formed with the setting element, the inside cavity of setting element, the setting element is inserted and is located the first end of center tube, the setting element respectively with cross the water hole and the first end intercommunication of center tube.

According to the utility model discloses an embodiment, be provided with the locating part in the casing, the locating part with the second end cover butt, the locating part be formed with respectively with cross the water hole and the water storage chamber communicates crosses the water flow way.

According to the utility model discloses an embodiment, the outer peripheral face of first end cover is provided with the recess, the recess embedded be equipped with the sealed complex sealing washer of casing.

According to an embodiment of the utility model, the solidification strength of colloid is greater than 5Mpa, flexonics spare's breaking strength more than or equal to 0.45cN/tex.

According to the utility model discloses the water purifier of second aspect embodiment, including casing and the above-mentioned arbitrary water purifier filter core, the water purifier filter core sets up in the casing.

The embodiment of the utility model provides an in above-mentioned one or more technical scheme, one of following technological effect has at least:

according to the utility model discloses water purifier filter core through the outside at filter core body setting fresh-keeping storehouse part, forms the water storage chamber between fresh-keeping storehouse part and the casing, and the part pure water after filter core body filters can enter into the water storage chamber and save, treats the start back next time, and the pure water of water storage intracavity loops through second water flow channel, third runner and pure water outlet flow channel output under the pressure effect to effectively solve the problem of first glass of water. The fresh-keeping bin component has a simple structure, so that the fresh-keeping bin component has extremely high stability; because the fresh-keeping storehouse part is integrated inside the filter core and the thickness is thinner, the volume of the water purifier is effectively reduced.

Further, through using above-mentioned water purifier filter core, effectively improve the stability of water purifier, reduce the volume of water purifier, strengthened product competitiveness.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic side view, sectional structural diagram of a filter element provided in an embodiment of the present invention;

fig. 2 is a schematic top view of a cross-sectional structure of a filter element provided in an embodiment of the present invention.

Reference numerals are as follows:

100. a housing; 101. a water inlet flow channel; 102. a wastewater outlet flow channel; 103. a pure water outlet flow passage; 104. a water inlet connection port; 105. a waste water connection port; 106. a pure water connection port; 200. a waterway conversion component; 201. a first flow passage; 202. a first filter member; 203. a second flow passage; 204. a third flow path; 210. a flow passage inner shell member; 211. a first interface; 212. a second interface; 213. a first flow passage inner shell; 214. a second flow path inner shell; 215. a second filter member; 220. a runner housing part; 221. a first water outlet; 222. a second water inlet; 223. a second water outlet; 224. a first flow channel housing; 225. a second flow channel housing; 300. a filter element assembly; 301. a first water inlet; 302. a first water outlet channel; 310. a fresh-keeping bin component; 311. a water storage cavity; 312. a fresh-keeping bin main body; 313. a first end cap; 314. a second end cap; 315. a positioning member; 320. a filter element body; 400. a central tube.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the embodiments and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Fig. 1 illustrates a schematic side sectional view of a filter cartridge, and as shown in fig. 1, the filter cartridge of the water purifier includes a housing 100 and a filter cartridge assembly 300, wherein the housing 100 is formed with a water inlet flow passage 101 and a pure water outlet flow passage 103. The filter element assembly 300 is arranged inside the shell 100, the filter element assembly 300 comprises a fresh-keeping bin component 310 and a filter element body 320, a water storage cavity 311 suitable for storing water is formed between the fresh-keeping bin component 310 and the shell 100, the filter element body 320 is arranged inside the fresh-keeping bin component 310, and a first water inlet 301 suitable for communicating a first end of the filter element body 320 with the water inlet channel 101 is formed in the fresh-keeping bin component 310; a second water outlet channel is formed inside the filter element body 320, and the second water outlet channel is respectively communicated with the water storage cavity 311 and the pure water outlet channel 103.

According to the filter element of the water purifier provided by the embodiment of the utility model, the fresh-keeping bin component 310 is arranged outside the filter element body 320, the water storage cavity 311 is formed between the fresh-keeping bin component 310 and the shell 100, and part of pure water filtered by the filter element body 320 can enter the water storage cavity 311 for storage, so that air in the water storage cavity is compressed; when the machine is stopped, the pure water is closed, the pressure of the raw water end is cut off, the pure water slowly drops under the action of air pressure, part of the wastewater is discharged through the first water outlet 221, the exchange quantity with the wastewater is reduced, and the concentration balance is achieved as soon as possible. After the machine is started up next time, the pure water in the water storage cavity 311 sequentially passes through the second water outlet flow channel, the third flow channel 204 and the pure water outlet flow channel 103 under the action of pressure to be output, so that the problem of the first cup of water is effectively solved. The fresh-keeping bin component 310 has a simple structure, so that the fresh-keeping bin component has extremely high stability; because the fresh-keeping bin component 310 is integrated in the filter element, the volume of the water purifier is effectively reduced.

It can be understood that the housing 100 further forms a waste water outlet channel 102, the interior of the filter element body 320 further forms a first outlet channel 302, and the first outlet channel 302 is communicated with the waste water outlet channel 102.

It will be appreciated that the first end cap 313 forms a first water outlet 221 adjacent to the center tube 400, and the first water outlet 221 communicates with the waste water outlet channel 102 and the first water outlet channel 302, respectively.

Fig. 2 illustrates a schematic top view cross-sectional structure of a filter element provided in an embodiment of the present invention, as shown in fig. 1 and fig. 2, the filter element includes a housing 100, a waterway conversion assembly 200 and a filter element assembly 300, the housing 100 is formed with a water inlet channel 101, and the water inlet channel 101 is adapted to provide a flow channel for unfiltered raw water to enter the housing 100. Waterway conversion assembly 200 is disposed inside housing 100, waterway conversion assembly 200 is formed with a first flow channel, a first filter 202 is disposed in the first flow channel, and the first flow channel is communicated with water inlet channel 101. The filter element assembly 300 is disposed inside the housing 100, the filter element assembly 300 is formed with a first water inlet 301, and the first water inlet 301 is communicated with the first flow passage.

According to the utility model discloses the filter core through set up first filtration piece 202 in first flow channel, utilizes first filtration piece 202 to carry out the prefilter to the raw water in the first flow channel, has reduced the impurity that gets into in the filter element group spare 300, has reduced the use of filter element group spare 300, has reduced the use cost of filter core, has prolonged the life of filter core. Because the first filter member 202 is integrated in the filter element, compared with the case of separately arranging the first filter member 202, the space occupied by the filter element is effectively reduced, and the product competitiveness is enhanced.

It is understood that the housing 100 is further formed with a wastewater outlet flow passage 102 and a pure water outlet flow passage 103, the wastewater outlet flow passage 102 is adapted to discharge wastewater in the first outlet flow passage 302, and the pure water outlet flow passage 103 is adapted to discharge purified pure water in the second outlet flow passage. The filter element assembly 300 is further formed with a first outlet flow passage 302 and a second outlet flow passage, the first outlet flow passage 302 is a waste water flow passage formed inside the filter element body 320, and the second outlet flow passage is a pure water flow passage formed inside the filter element body 320. The waterway conversion assembly 200 is further formed with a second flow channel 203 adapted to communicate the wastewater outlet flow channel 102 with the first outlet flow channel 302, and a third flow channel 204 adapted to communicate the second outlet flow channel with the pure water outlet flow channel 103.

In the using process, raw water firstly enters the first flow channel through the water inlet flow channel 101, the raw water in the first flow channel is primarily filtered into primarily filtered water through the first filtering piece 202, the primarily filtered water enters the inside of the filter element body 320 through the first water inlet 301 to be filtered and separated again into wastewater and pure water, wherein the wastewater is discharged through the first water outlet flow channel 302, the second flow channel 203 and the wastewater outlet flow channel 102 in sequence, and the pure water is discharged through the second water outlet flow channel, the third flow channel 204 and the pure water outlet flow channel 103 in sequence.

It can be understood that, as shown in fig. 1 and 2, the housing 100 includes a main housing and a cover, the main housing is hollow, the waterway conversion assembly 200 and the filter element assembly 300 are disposed inside the main housing, a port is formed at a first end of the main housing, and the cover covers the port of the main housing. The water inlet flow passage 101, the wastewater outlet flow passage 102 and the pure water outlet flow passage 103 are formed on the cover body. As shown in fig. 2, in order to facilitate connection with an external pipe, the water inlet flow passage 101 forms one water inlet connection port 104 on the cover, the waste water outlet flow passage 102 forms three waste water connection ports 105 on the cover, and the pure water outlet flow passage 103 forms one pure water connection port 106 on the cover. The water inlet connection port 104, the waste water connection port 105 and the pure water connection port 106 are arranged side by side to facilitate connection with a pipeline.

It is understood that the waterway conversion assembly 200 includes an inner housing member 210 and an outer housing member 220, the third flow passage 204 is formed inside the inner housing member 210, and the third flow passage 204 provides an installation site for the second filter 215 in addition to a passage for pure water to be discharged. The first end of the flow channel inner housing part 210 forms a first interface 211 adapted to communicate the third flow channel 204 with the second outlet flow channel, and in case a central tube 400 is provided, the first interface 211 is detachably connected with the second end of the central tube 400. The second end of the inner housing flow passage member 210 forms a second port 212 adapted to communicate the third flow passage 204 with the pure water outlet flow passage 103, and the second port 212 is detachably connected to the pure water outlet flow passage 103 of the top cover, so as to facilitate the mounting and dismounting of the inner housing flow passage member 210.

The flow path housing member 220 is connected to the filter element assembly 300, the flow path housing member 220 is disposed around the outer circumference of the flow path inner housing member 210, a second flow path 203 is formed between the flow path housing member 220 and the flow path inner housing member 210, and the second flow path 203 is an annular gap extending in the axial direction of the center tube 400. The flow channel outer shell part 220 and the flow channel inner shell part 210 are coaxially arranged, so that the width of any position of the same cross section of the second flow channel 203 is the same, the same resistance is applied to any position of the same cross section of the second flow channel 203 when water flows through the second flow channel 203, the formation of a dead water area is prevented, and the quality of filter element water outlet is improved.

The flow passage housing member 220 forms a first water outlet 221 adapted to communicate the second flow passage 203 with the first water outlet 302, the first water outlet 221 is adapted to communicate the first water outlet 302 with the second flow passage 203, the first water outlet 221 may have various structural forms, which may be an arc-shaped through hole formed on the flow passage housing member 220, or a plurality of circular through holes formed on the flow passage housing member 220, and the plurality of circular through holes are distributed on the same circle at intervals. The interior of the flow path housing part 220 forms a first flow path, and the flow path housing part 220 forms a second water inlet 222 adapted to communicate the first flow path with the water inlet flow path 101, and a second water outlet 223 adapted to communicate the first flow path with the first water inlet 301.

It will be appreciated that the flow housing member 220 includes a first flow housing 224 and a second flow housing 225, the first flow housing 224 being hollow in its interior, the first flow housing 224 being open at an end facing away from the cartridge assembly 300, the first flow housing 224 being connected to the cartridge assembly 300. To improve sealing, the junction of the first flow passage housing 224 and the filter cartridge assembly 300 is sealed with a sealing ring. The first flow passage housing 224 forms a first water outlet 221 toward one end of the cartridge assembly 300, and the first water outlet 221 is disposed at the outer circumference of the second end of the centertube 400.

In order to improve the sealing performance between the first flow passage housing 224 and the filter element body 320, at least one annular convex edge is arranged at the end part of the first flow passage housing 224 facing one end of the filter element assembly 300, and after the first flow passage housing 224 is installed in place, the annular convex edge is embedded into the end surface of the first end of the filter element body 320, so that series flow between the first water outlet 221 and the first water inlet 301 is prevented, primary filtered water can only enter the inside of the filter element body 320, and after waste water is separated out, the primary filtered water enters the second flow passage 203 through the first water outlet 221.

The second flow path shell 225 is sleeved on the periphery of the first flow path shell 224, the second flow path shell 225 is an annular component, the second flow path shell 225 is hollow, a first flow path is formed inside the second flow path shell 225, the second water inlet 222 is formed on the outer peripheral surface of the second flow path shell 225, the second water inlet 222 is arranged on the outer peripheral surface of the second flow path shell 225, the opening area of the second water inlet 222 can be increased, the raw water and the first filter element 202 are ensured to have a larger contact surface, and the filtering efficiency is improved. The second water outlet 223 is formed on a side of the second flow path housing 225 facing the first flow path housing 224, and this arrangement also increases the opening area of the second water outlet 223.

It can be understood that, as shown in fig. 1, to facilitate the installation and removal of the first filter element 202, the second flow path housing 225 includes a first housing portion and a second housing portion, both of which are annular members, the first housing portion is sleeved on the upper end of the first filter element 202, the second housing portion is sleeved on the lower end of the first filter element 202, the first housing portion and the second housing portion form a second water inlet 222 on a side of the first filter element 202 facing away from the first flow path housing 224, and the first housing portion and the second housing portion form a second water outlet 223 on a side of the first filter element 202 facing toward the first flow path housing 224. The upper end of the first housing portion is sealed with the cover by a seal ring, and the lower end of the second housing portion is sealed with the first end cap 313 by a seal ring. Of course, the configuration of the second flow path housing 225 is not limited to this, and the first housing portion and the second housing portion may be connected by a connecting member, and a flow path may be formed between two adjacent connecting members.

It can be understood that the flow channel inner housing part 210 includes a first flow channel inner housing 213 and a second flow channel inner housing 214, the first flow channel inner housing 213 is disposed inside a first flow channel outer housing 224, a second flow channel 203 is formed between the first flow channel inner housing 213 and the second flow channel outer housing 225, the first flow channel inner housing 213 is disposed coaxially with the first flow channel outer housing 224, an opening is formed at an end of the first flow channel inner housing 213 facing away from the filter element assembly 300, a first interface 211 is formed at an end of the first flow channel inner housing 213 facing the filter element assembly 300, and a size of the first interface 211 is adapted to a size of a second end of the center tube 400. The second flow channel inner shell 214 covers the opening of the first flow channel inner shell 213, the second flow channel inner shell 214 is in sealing fit with the first flow channel inner shell 213, the second flow channel inner shell 214 and the first flow channel inner shell 213 are matched to define the third flow channel 204, the second interface 212 is formed on one side, away from the first flow channel inner shell 213, of the second flow channel inner shell 214, and the second interface 212 is in plug connection with the pure water outlet flow channel 103.

It can also be understood that, in order to improve the sealing performance, the outer peripheral surface of the end of the first flow channel inner shell 213 facing away from the filter element assembly 300 is provided with a groove, a sealing ring is embedded in the groove, and the second flow channel inner shell 214 is in sealing fit with the first flow channel inner shell 213 through the sealing ring. The peripheral surface of the second interface 212 is provided with a groove, a sealing ring is embedded in the groove, and the second interface 212 is in sealing fit with the pure water outlet flow channel 103 through the sealing ring.

It will be appreciated that a second filter element 215 is disposed in the third flow passage 204, and the second filter element 215 is adapted to re-filter the pure water passing through the third flow passage 204, further improving the quality of the water and enhancing the user experience. The second filter element 215 is integrated into the third flow channel 204, further reducing the volume of the filter element. The second filter element 215 has a tubular structure, the second filter element 215 is coaxially disposed with the first flow channel inner shell 213, and an annular gap is formed between the second filter element 215 and the inner wall of the first flow channel inner shell 213. The second filter member 215 is sealingly engaged at both ends thereof with the second flow path inner casing 214 and the first flow path inner casing 213, respectively. The pure water from the center pipe 400 enters the annular gap, is filtered again by the second filter 215, and finally enters the pure water outlet flow passage 103 through the center flow passage of the second filter 215. By arranging the second filter member 215 of a tubular structure coaxially with the first flow path inner casing 213, the cross-sections of pure water and the second filter member 215 are effectively increased, and the filtering effect is enhanced.

It can be understood that because the problem of the first cup of water is solved by generally adopting pure water backflow, double-film mutual flushing and water drive tank flushing in the related technology, although a certain effect is achieved, the problems of much waste water, high noise, large whole machine volume and complex and unreliable system exist. Although theoretically, the RO filter cartridge can be improved to solve the above problems, there are several difficulties: firstly, the internal space of the reverse osmosis membrane filter element is extremely small, and conventional sealing is extremely difficult to perform; secondly, in the reverse osmosis operation process, a higher pressure fluctuation exists, and common materials cannot bear the higher pressure; thirdly, the colloid of the sealed fresh-keeping bin is required to be high, and food-grade environment-friendly colloid is required. Fourth, there must be a high degree of reliability. Therefore, the utility model discloses a filter core is provided with fresh-keeping storehouse part 310 in filter core body 320 outside, can effectively solve above-mentioned problem.

The filter element assembly 300 comprises a fresh food bin component 310 and a filter element body 320, wherein the fresh food bin component 310 is arranged inside the shell 100, a water storage cavity 311 suitable for storing water is formed between the fresh food bin component 310 and the shell 100, and the first water inlet 301 is formed in the fresh food bin component 310. The interior of the fresh-keeping bin component 310 is hollow, the filter element body 320 is arranged inside the fresh-keeping bin component 310, and the surface of the filter element body 320 is in sealing fit with the fresh-keeping bin component 310. By arranging the water storage cavity 311 between the fresh food storage bin 310 and the casing 100, part of pure water filtered by the filter element body 320 can enter the water storage cavity 311 for storage, and after the machine is started next time, the pure water in the water storage cavity 311 sequentially passes through the central pipe 400, the third flow channel 204 and the pure water outlet flow channel 103 under the action of pressure to be output, so that the problem of the first cup of water is effectively solved.

The first end of the filter element body 320 is communicated with the first water inlet 301, a first water outlet flow passage 302 and a second water outlet flow passage are formed inside the filter element body 320, and the second water outlet flow passage is communicated with the water storage cavity 311 through the central tube 400. As shown in fig. 1, raw water (a solid arrow with a single line) firstly enters the first flow channel through the water inlet flow channel 101, the raw water in the first flow channel is primarily filtered into primarily filtered water (a hollow arrow with a single line) through the first filtering member 202, and then enters the inside of the filter element body 320 from the first end of the filter element body 320 through the first water inlet 301, a part of the primarily filtered water flows to the second end of the filter element body 320 along the length direction of the filter element body 320, a part of the primarily filtered water flows into the inside of the central tube 400 along the radial direction of the filter element body 320, the primarily filtered water is separated into pure water (a thick hollow arrow) and waste water (a thick solid arrow) in the filtering process, the pure water is discharged through the central tube 400, and the waste water cannot penetrate through the filter element body 320 and can only be discharged through the first water outlet flow channel 302.

It is understood that the cartridge body 320 may be a reverse osmosis cartridge, a NF cartridge, or other types of cartridges.

It can be understood that the filter element further includes a central tube 400, the central tube 400 is inserted into the second water outlet flow channel, the central tube 400 and the filter element body 320 are coaxially arranged, a plurality of through holes communicated with the filter element body 320 are formed on the outer peripheral surface of the central tube 400, the through holes are arranged at equal intervals, a first end of the central tube 400 is communicated with the water storage cavity 311, and the first connector 211 is connected with the third flow channel 204 in an inserting manner, so that a second end of the central tube 400 is communicated with the third flow channel 204. In order to improve the sealing property between the second end of the central tube 400 and the third flow channel 204, a groove is formed in the outer circumferential surface of the second end of the central tube 400, a sealing ring is arranged in the groove, and the second end of the central tube 400 and the third flow channel 204 are sealed through the sealing ring.

It can be understood that the fresh food compartment component 310 includes a fresh food compartment main body 312, a first end cap 313 and a second end cap 314, the fresh food compartment main body 312 is a tubular structure, the fresh food compartment main body 312 is sleeved on the outer periphery of the filter element body 320, and the inner surface of the fresh food compartment main body 312 is in sealing fit with the outer peripheral surface of the filter element body 320, so as to prevent water from streaming between the fresh food compartment main body 312 and the outer peripheral surface of the filter element body 320.

The first end cover 313 is disposed at one end of the fresh food compartment main body 312, and the outer peripheral surface of the first end cover 313 is in sealing fit with the inner wall of the main housing. In order to improve the sealing performance between the first end cap 313 and the main casing, a groove is formed in the outer peripheral surface of the first end cap 313, a sealing ring is embedded in the groove, and the first end cap 313 and the main casing are sealed through the sealing ring.

The first end cover 313 is in sealing fit with the first end of the filter element body 320, the sealing fit mode between the first end cover 313 and the first end of the filter element body 320 can be various, the first end cover 313 and the first end of the filter element body 320 can be sealed through gluing, an annular convex edge can be arranged on one side, facing the filter element body 320, of the first end cover 313, and the first end of the filter element body 320 is embedded into the annular convex edge to achieve sealing fit. The first end cover 313 is also in sealing fit with the first end of the fresh-keeping bin main body 312, in this embodiment, the first end cover 313 and the fresh-keeping bin main body 312 are sealed by gluing, and in the process of manufacturing the fresh-keeping bin main body 312 by using glass fibers, the glass fibers and the first end cover 313 can be connected by gluing after the glue is cured by winding part of the glass fibers immersed in the glue on the first end cover 313, so that the sealing between the first end cover 313 and the fresh-keeping bin main body 312 is realized. The first end cap 313 is centrally formed with a mounting hole through which the second end of the center tube 400 is inserted into the first end cap 313.

Of course, in the case that the waterway conversion assembly 200 is provided in the main housing, an end of the first flow channel housing 224 facing the filter cartridge assembly 300 may be inserted into the mounting hole, and an end of the first flow channel housing 224 facing the filter cartridge assembly 300 may be sealingly engaged with the first end cap 313. And then a center hole is formed at one end of the first flow path housing 224 facing the filter element assembly 300, and a second end of the center tube 400 is inserted into one end of the first flow path housing 224 facing the filter element assembly 300. By embedding the first fluid passage housing 224 in the mounting hole toward the end of the filter element assembly 300, the fixing of the waterway conversion assembly 200 is realized, and the sealing of the first end cap 313 is also realized, so that the assembly of the components inside the filter element is more compact.

The second end cap 314 is disposed at the other end of the fresh-keeping bin main body 312, the second end cap 314 is a circular sheet structure, the second end cap 314 is in sealing fit with the second end of the filter element body 320, the second end cap 314 is in sealing fit with the second end of the fresh-keeping bin main body 312, and the sealing manner between the second end cap 314 and the second end of the fresh-keeping bin main body 312 is the same as that of the first end, which will not be described in detail herein. In order to connect the second end cap 314 with the second end of the fresh-keeping bin main body 312 conveniently, a circular step is formed on one side of the second end cap 314 facing the filter element body 320, the circular step can increase the connection area between the glue of the fresh-keeping bin main body 312 and the second end cap 314, and the connection strength between the fresh-keeping bin main body 312 and the second end cap 314 is improved. The second end cap 314 is formed with a water through hole, which is located at the center of the second end cap 314 and is respectively communicated with the first end of the central tube 400 and the water storage cavity 311.

It is understood that the first water outlet 221 is formed at a position of the first flow path housing 224 near the centertube 400, the first water outlet 221 is disposed at an outer circumference of the second end of the centertube 400, and the first water outlet 221 communicates with the second flow path 203 and the first water outlet flow path 302, respectively. The first water inlet 301 is formed at one side of the first end cover 313 close to the first flow channel housing 224, and since the first water inlet 301 and the first water outlet 221 are located at the farthest position of the first end surface of the filter element body 320, the flow distance of the raw water in the radial direction of the filter element body 320 is increased, and the purification effect of the filter element is enhanced.

It is understood that the housing 100 is provided with a limiting element, the limiting element is located at an end of the main housing away from the cover, and the limiting element is integrally formed with the main housing, but may also be connected to the main housing through a buckle or a plastic screw. The limiting member is abutted against the second end cap 314, and a water passing channel respectively communicated with the water passing hole and the water storage cavity 311 is formed on the limiting member.

It can be understood that the fresh-keeping bin main body 312 comprises a colloid and a flexible connecting piece wound on the outer peripheral surface of the filter element body 320, the colloid is coated on the outer peripheral surface of the filter element body 320, and the flexible connecting piece is embedded in the colloid. Because the installation space of the fresh-keeping bin main body 312 is small, the thickness of the fresh-keeping bin main body 312 needs to be thin, the thinner the thickness of the fresh-keeping bin main body 312 is, the larger the water storage amount of the water storage cavity 311 is, and the thickness of the fresh-keeping bin main body 312 is 1-3mm in this embodiment. The crisper bin body 312 needs to have a high strength because of the large pressure fluctuations that it needs to withstand during use. The utility model discloses the filter core is owing to fresh-keeping storehouse main part 312 comprises flexible piece and colloid, under the condition that reduces fresh-keeping storehouse main part 312 thickness, makes fresh-keeping storehouse still have very high intensity through the flexonics spare that uses higher strength to satisfy fresh-keeping storehouse main part 312's resistance to compression requirement.

It can be understood that the colloid is food level glue, adopts food level glue preparation fresh-keeping storehouse main part 312, can avoid the problem that the pure water in the filter core has the peculiar smell, has improved the quality of drinking water, has strengthened user experience and has felt, improves product competitiveness.

It can be understood that the positioning member 315 is formed on a side of the second end cap 314 facing the filter element body 320, and the positioning member 315 and the second end cap 314 are integrally formed, but the connection manner of the positioning member 315 and the second end cap 314 is not limited thereto, and a screw thread may be provided on an inner wall of the water through hole, so that the positioning member 315 is installed in the water through hole by the screw thread. The positioning member 315 is hollow, the positioning member 315 is inserted into the first end of the center tube 400, and the positioning member 315 is respectively communicated with the water through hole and the first end of the center tube 400. In order to facilitate the installation of the second end cap 314 at the second end of the filter element body 320, a guiding inclined plane is disposed at the edge of the positioning member 315 away from the second end cap 314, and the guiding inclined plane is disposed to reduce the outer diameter of the positioning member 315 away from the second end cap 314, so that the positioning member 315 can be conveniently inserted into the central tube 400, and the guiding inclined plane plays a guiding role during the insertion process, thereby ensuring that the positioning member 315 can be rapidly inserted in place.

In order to conveniently know the advantage of fresh-keeping storehouse main part 312, the utility model also provides a manufacturing process of fresh-keeping storehouse part, wherein, fresh-keeping storehouse main part 312 comprises glue and flexible piece, and the major component of glue is AB glue, and the polyurethane of the preferred food level of glue is glued. The density of the A glue is 0.95-1.05g/cm ³ The density of the B glue is 1.18-1.28g/cm ³ (ii) a The viscosity of the adhesive A at 20 ℃ is 1600-2400mPa.s, the viscosity of the adhesive B at 20 DEG CThe viscosity under the temperature condition is 30-70mPa.s, and the viscosity of the AB adhesive under the temperature condition of 20 ℃ is 200-600mPa.s. The curing tack-free time of the glue is 30min-1h, and it should be noted here that the curing tack-free time refers to the time from the beginning of the curing of the glue to the curing of the surface of the glue. The pressure-bearing strength of the fresh-keeping bin main body 312 is related to the performance of glue besides the strength of the flexible connecting piece. The curing strength of the glue in this embodiment is 5Mpa, but of course, the curing strength of the glue is not limited thereto, and is specifically selected according to actual needs.

The flexible part is made of glass fiber, the water content of the glass fiber is 0-0.05%, the combustible content of the glass fiber is 0.45-0.75%, the breaking strength of the glass fiber is more than or equal to 0.45cN/tex, and the linear density variation coefficient of the glass fiber is less than or equal to 5.0.

The manufacturing process of the fresh-keeping bin component mainly comprises the following steps:

mounting the first end cap 313 to a first end of the cartridge body 320 and the second end cap 314 to a second end of the cartridge body 320, respectively;

immersing the glass fiber into a glue groove filled with AB glue through a tool, so that the AB glue is coated on the surface of the glass fiber;

the glass fiber dipped with the AB glue is wound on the peripheral surface of the filter element body 320 by adopting automatic equipment, and the winding number is 2-3 circles.

After the glue is cured, the fresh keeping bin main body 312 can be adhered to the outer peripheral surfaces of the first end cap 313, the second end cap 314 and the filter element body 320, so that the filter element body 320 is sealed in the fresh keeping bin component 310. The pressure of the fresh-keeping bin component 310 formed by curing can reach 5Mpa.

Referring now to fig. 1 and 2, an embodiment of the present invention is described, wherein the cartridge includes a housing 100, a waterway conversion assembly 200, a cartridge assembly 300, and a central tube 400, as shown in fig. 1 and 2.

The housing 100 includes a main housing and a cover, the main housing is hollow, the main housing is a circular barrel structure, a port is formed at a first end of the main housing, the cover covers the port of the main housing, and the waterway conversion assembly 200 and the filter element assembly 300 are disposed in the main housing. The cover body is formed with a water inlet flow passage 101, a waste water outlet flow passage 102 and a pure water outlet flow passage 103, wherein the water inlet flow passage 101 forms a water inlet connection port 104 on the cover body, the waste water outlet flow passage 102 forms three waste water connection ports 105 on the cover body, the pure water outlet flow passage 103 forms a pure water connection port 106 on the cover body, and the water inlet connection port 104, the waste water connection port 105 and the pure water connection port 106 are arranged side by side.

The waterway conversion assembly 200 comprises a waterway conversion assembly 210 and a waterway conversion assembly 220, wherein the waterway conversion assembly 220 comprises a first waterway outer shell 224 and a second waterway outer shell 225, the first waterway outer shell 224 is hollow, and one end of the first waterway outer shell 224, which faces away from the filter element assembly 300, is opened, and the opening is a circular opening. The first flow passage housing 224 forms a first water outlet 221 toward one end of the filter cartridge assembly 300, and the first water outlet 221 is annularly arranged at the outer circumference of the second end of the center tube 400. The end of the first flow channel housing 224 facing the filter element assembly 300 is provided with two annular ribs embedded into the end face of the first end of the filter element body 320.

The second flow path housing 225 is an annular member, the second flow path housing 225 is sleeved on the periphery of the first flow path housing 224, the second flow path housing 225 and the first flow path housing 224 are coaxially arranged, the second flow path housing 225 is hollow inside, and a first flow path is formed inside the second flow path housing 225. The outer peripheral surface of the second flow channel shell 225 is formed with a second water inlet 222, the second water inlets 222 are distributed annularly, and the second water inlets 222 are respectively communicated with the first flow channel and the water inlet flow channel 101. The second water outlet 223 is formed on one side of the second flow passage housing 225 facing the first flow passage housing 224, the second water outlet 223 is distributed annularly, and the second water outlet 223 is respectively communicated with the first flow passage and the first water inlet 301. The first filter 202 is disposed in the first flow passage, and the first filter 202 is an annular filter.

The flow passage inner housing member 210 includes a first flow passage inner housing 213 and a second flow passage inner housing 214, the first flow passage inner housing 213 is disposed inside a first flow passage outer housing 224, a second flow passage 203 is formed between the first flow passage inner housing 213 and the first flow passage outer housing 224, and the first flow passage inner housing 213 is disposed coaxially with the first flow passage outer housing 224. The cross section of the second flow channel 203 is annular, and the second flow channel 203 is respectively communicated with the wastewater outlet flow channel 102 and the first outlet flow channel 302. An opening is formed at one end, away from the filter element assembly 300, of the first flow channel inner shell 213, the first interface 211 is formed at one end, facing the filter element assembly 300, of the first flow channel inner shell 213, the second flow channel inner shell 214 covers the opening of the first flow channel inner shell 213, the second flow channel inner shell 214 is in sealing fit with the first flow channel inner shell 213, the second flow channel inner shell 214 and the first flow channel inner shell 213 are matched to form a third flow channel 204, the second interface 212 is formed at one side, away from the first flow channel inner shell 213, of the second flow channel inner shell 214, and the second interface 212 is in plug connection with the pure water outlet flow channel 103. A second filtering member 215 is arranged in the third flow passage 204, the second filtering member 215 is of a tubular structure, the second filtering member 215 is coaxially arranged with the first flow passage inner shell 213, and an annular gap is formed between the second filtering member 215 and the inner wall of the first flow passage inner shell 213. The second filter member 215 is sealingly engaged at both ends thereof with the second flow path inner casing 214 and the first flow path inner casing 213, respectively.

The filter element assembly 300 comprises a fresh food compartment component 310 and a filter element body 320, wherein the fresh food compartment component 310 is arranged inside the casing 100, and a water storage cavity 311 suitable for storing water is formed between the fresh food compartment component 310 and the casing 100. Fresh-keeping storehouse part 310 is including fresh-keeping storehouse main part 312, first end cover 313 and second end cover 314, fresh-keeping storehouse main part 312 is the tubular structure, the periphery of filter core body 320 is located to fresh-keeping storehouse main part 312 cover, the internal surface of fresh-keeping storehouse main part 312 and the sealed cooperation of the outer peripheral face of filter core body 320, fresh-keeping storehouse main part 312 includes the colloid and twines in the flexible connectors of filter core body 320 outer peripheral face, the colloid cladding is in the filter core body 320 outer peripheral face, flexible connectors inlays to be located in the colloid.

The first end cap 313 is disposed at one end of the fresh food compartment main body 312, and an outer peripheral surface of the first end cap 313 is in sealing fit with an inner wall of the main housing. The first end cover 313 is provided with an annular convex edge towards one side of the filter element body 320, the first end of the filter element body 320 is embedded into the annular convex edge to realize sealing fit, and the first end cover 313 is also in sealing fit with the first end of the fresh-keeping bin main body 312. The first end cap 313 is provided with a mounting hole in which one end of the first flow channel housing 224 facing the filter element assembly 300 is fitted, and one end of the first flow channel housing 224 facing the filter element assembly 300 is in sealing engagement with the first end cap 313. The first flow passage housing 224 is provided with a central hole toward one end of the filter cartridge assembly 300, and the second end of the center tube 400 is penetrated through the first flow passage housing 224 toward one end of the filter cartridge assembly 300 through the central hole. A first water outlet 221 is formed at a position of the first flow path housing 224 close to the center tube 400, the first water outlet 221 is disposed at an outer circumference of a second end of the center tube 400, and the first water outlet 221 communicates with the waste water outlet flow path 102 and the first outlet flow path 302, respectively. The first water inlet 301 is formed at a side of the first end cap 313 adjacent to the first flow path housing 224.

The second end cap 314 is disposed at the other end of the fresh-keeping bin main body 312, the second end cap 314 is a circular sheet structure, the second end cap 314 is in sealing fit with the second end of the filter element body 320, and the second end cap 314 is in sealing fit with the second end of the fresh-keeping bin main body 312. The second end cap 314 is formed with a water through hole at a central position of the second end cap 314, and the water through hole is respectively communicated with the first end of the central tube 400 and the water storage cavity 311.

The first end and the first water inlet 301 intercommunication of filter core body 320, the inside of filter core body 320 is formed with first play water runner 302 and second play water runner, and in the second play water runner was located in the center tube 400 was inserted, center tube 400 and the coaxial setting of filter core body 320, the outer peripheral face of center tube 400 was formed with a plurality of through-holes that communicate with filter core body 320, and the through-hole equidistance interval sets up, and the first end and the water storage chamber 311 intercommunication of center tube 400. The filter element body 320 can be a reverse osmosis filter element or a NF filter element.

The limiting member is located at one end of the main housing away from the cover body, the limiting member and the main housing are integrally formed, the limiting member abuts against the second end cap 314, and the limiting member is formed with a water flowing channel respectively communicated with the water flowing hole and the water storage cavity 311. A positioning member 315 is formed on one side of the second end cap 314 facing the filter element body 320, the positioning member 315 and the second end cap 314 are integrally formed, the positioning member 315 is hollow, the positioning member 315 is inserted into the first end of the central tube 400, the positioning member 315 is respectively communicated with the water passing hole and the first end of the central tube 400, and a guide inclined plane is arranged on the edge of one end of the positioning member 315 away from the second end cap 314.

The utility model also provides a water purifier, water purifier include casing and above-mentioned arbitrary one embodiment the filter core, the filter core sets up in the casing. According to the utility model discloses water purifier through using above-mentioned filter core, has reduced the volume of water purifier, has effectively prolonged the life of water purifier.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A water purifier filter element, comprising:

the filter element assembly is arranged inside the shell and comprises a fresh-keeping bin component and a filter element body, a water storage cavity suitable for storing water is formed between the fresh-keeping bin component and the shell, the filter element body is arranged inside the fresh-keeping bin component, and a first water inlet suitable for communicating a first end of the filter element body with the water inlet flow passage is formed in the fresh-keeping bin component; the filter element body is internally provided with a second water outlet flow passage which is respectively communicated with the water storage cavity and the pure water outlet flow passage.

2. The water purifier cartridge as recited in claim 1, further comprising:

the central tube is inserted into the second water outlet flow channel, a plurality of through holes communicated with the filter element body are formed in the peripheral surface of the central tube, the first end of the central tube is communicated with the water storage cavity, and the second end of the central tube is communicated with the pure water outlet flow channel.

3. The water purifier filter element of claim 2, wherein the fresh food compartment component comprises:

the first end cover is arranged at one end of the fresh-keeping bin body and is respectively in sealing fit with the first end of the filter element body and the fresh-keeping bin body; the second end of the central tube is arranged through the first end cover;

4. The filter element of water purifier as recited in any one of claims 1 to 3, wherein the fresh-keeping bin body comprises a colloid and a flexible connecting member wound around the outer peripheral surface of the filter element body, the colloid is coated on the outer peripheral surface of the filter element body, and the flexible connecting member is embedded in the colloid.

5. The water purifier filter element of claim 4, wherein the gel is a food grade glue.

6. The water purifier filter element of any one of claims 1 to 3, wherein the freshness storehouse body has a thickness of 1-3mm.

7. The water purifier filter element according to claim 3, wherein the housing is further formed with a wastewater effluent passage, and the interior of the filter element body is further formed with a first effluent passage communicating with the wastewater effluent passage.

8. The water purifier cartridge as recited in claim 7, wherein a location of said first end cap adjacent said center tube defines a first water outlet in communication with said wastewater outlet flow passage and said first outlet flow passage, respectively.

9. The filter element of the water purifier as recited in claim 3 or 8, wherein a positioning member is formed at a side of the second end cap facing the filter element body, the positioning member has a hollow interior, the positioning member is inserted into the first end of the central tube, and the positioning member is respectively communicated with the water through hole and the first end of the central tube.

10. The filter element of water purifier as recited in claim 3 or 8, wherein a limiting member is disposed in the housing, the limiting member abuts against the second end cap, and the limiting member is formed with a water flowing channel respectively communicating with the water flowing hole and the water storage chamber.

11. The water purifier filter element according to claim 3 or 8, wherein a groove is provided on the outer circumferential surface of the first end cap, and a sealing ring which is in sealing fit with the housing is embedded in the groove.

12. The water purifier filter element according to claim 4, wherein the curing strength of the gel is greater than 5Mpa, and the breaking strength of the flexible connector is greater than or equal to 0.45cN/tex.

13. A water purifier comprising a housing and a water purifier filter element according to any one of claims 1 to 12, said water purifier filter element being disposed within said housing.