Water purification assembly and water purification equipment

Abstract

The utility model relates to the technical field of water purification, and provides a water purification component and water purification equipment, the water purification component comprises a shell and a filter element, the filter element comprises a capacitive deionization filter element and a rear filter element which are coaxially arranged, and a positive pole lug and a negative pole lug of the capacitive deionization filter element are arranged in a containing space, so that the water purification component can be used for purifying water. The first water outlet of the rear filter element is formed in the water outlet space, and the design is based on the water outlet space and the accommodating space which are isolated from each other, so that water and electricity isolation of the water purification assembly is realized, and the reliability of water purification work of the water purification assembly is ensured. Moreover, the capacitive deionization filter element and the rear filter element are integrated into a whole to form the composite filter element, and the composite filter element is small in occupied space, so that the waterway structure of the existing water purification assembly is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a water purification component and water purification equipment. Background Art

[0002] Capacitive deionization (CDI) is a water desalination and purification technology based on the double-layer capacitance theory. Its basic principle is that after a low voltage is applied to the electrodes, the cations, anions or charged particles in the solution migrate to the two poles respectively under the action of the electric field force and the concentration gradient, and adsorb on the electrode surface to form a double layer, thereby achieving the purpose of desalination or purification. Capacitive deionization technology can achieve different effluent water quality at different voltages, while retaining ions that are beneficial to the human body and removing heavy metal ions. In related technologies, capacitive deionization filter elements are usually combined with other filter elements for physical filtration to ensure water purification effects. However, since each filter element is used independently, the water purification component formed by this combination not only has complex water channels, making it difficult to ensure water purification effects, but also occupies a large site space, which is not conducive to application in water purification equipment. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention proposes a water purification assembly that integrates a capacitive deionization filter element and a post-filter element into one unit, which occupies a small space, simplifies the water path structure of existing water purification assemblies, and is convenient for use in water purification equipment.

[0004] The utility model also provides a water purification device.

[0005] According to the first embodiment of the present invention, the water purification component includes:

[0006] case;

[0007] A filter element is arranged in the housing, a first gap is left between the outer side surface of the filter element and the inner wall of the housing, the filter element includes a coaxially arranged capacitor deionization filter element and a post-filter element, the capacitor deionization filter element and the post-filter element are fluidically connected in sequence, and the post-filter element is formed with a first water outlet; the capacitor deionization filter element and the inner wall of the housing form a accommodating space, the post-filter element and the inner wall of the housing form a water outlet space, the water outlet space and the accommodating space are arranged opposite to each other, the first water outlet is connected to the water outlet space, the positive pole tab and the negative pole tab of the capacitor deionization filter element both extend into the accommodating space, the positive pole tab and the negative pole tab are arranged at intervals and are suitable for connection to an external power supply;

[0008] The shell is provided with a water outlet port communicating with the water outlet space and a water inlet port communicating with the first gap, and the water outlet port and the water inlet port are located on the same side of the shell.

[0009] According to one embodiment of the present invention, the capacitive deionization filter element includes: a water outlet pipe and an electrode assembly;

[0010] The electrode assembly is wound around the peripheral wall of the water outlet pipe, and the water outlet pipe has a first water outlet channel and a water hole and a second water outlet connected to the first water outlet channel, and the water hole is arranged on the peripheral wall of the water outlet pipe; wherein, the second water outlet is arranged at the first end of the water outlet pipe, and the water hole is arranged on the peripheral wall near the second end of the water outlet pipe.

[0011] According to an embodiment of the present invention, a guide groove is provided on the peripheral wall of the water outlet pipe, and fluid communication is formed between the guide groove and the water hole.

[0012] According to one embodiment of the present invention, the electrode assembly includes: an insulating sheet and at least two layers of electrode sheets, wherein the insulating sheet and the electrode sheets are stacked, and the insulating sheet is sandwiched between two adjacent layers of the electrode sheets;

[0013] The electrode sheet includes a current collector layer and an adsorption layer, and the adsorption layer is provided on both the front and back sides of the current collector layer; two adjacent electrode sheets are respectively configured as a positive electrode sheet and a negative electrode sheet, the positive electrode sheet is connected to the positive electrode tab, and the negative electrode sheet is connected to the negative electrode tab, and a water passage for accommodating the insulating sheet is formed between the positive electrode sheet and the negative electrode sheet;

[0014] The inner and outer ends of the electrode assembly relative to the water outlet pipe are correspondingly formed as a water outlet end and a water inlet end; the water inlet end is connected to the water outlet end through the water passage, and the water outlet end extends to the peripheral wall of the water outlet pipe and forms a fluid connection with the water hole.

[0015] According to an embodiment of the present invention, the electrode sheets of two adjacent layers are arranged opposite to each other along the stacking direction, and the insulating sheet and the electrode sheet are staggered along the stacking direction, so that the electrode sheet is hidden between the insulating sheets of two adjacent layers.

[0016] According to one embodiment of the present invention, the peripheral wall of the water outlet pipe is provided with a plurality of groups of water holes along the circumferential direction, and each group of water holes is arranged along the axial direction of the water outlet pipe;

[0017] The number of the electrode sheets is greater than two layers, so that the electrode assembly forms multiple water channels; the inner end of the electrode assembly forms multiple water outlet ends corresponding to the multiple water channels, and the multiple water outlet ends are arranged opposite to the multiple groups of water holes.

[0018] According to one embodiment of the present invention, the current collector layer includes any one of copper foil, titanium foil and graphite paper, and the adsorption layer includes an activated carbon layer.

[0019] According to one embodiment of the present invention, the thickness of the current collector layer is 15-50 microns, and the thickness of the adsorption layer is 25-200 microns.

[0020] According to one embodiment of the present invention, the water purification component also includes a first end cover, the first end cover includes a side wall and a top wall connected by a bending connection, the side wall is connected to the inner wall of the shell, the top wall and the first end of the capacitor deionization filter element are sealed by a filling glue, and the top wall, the side wall and the inner wall of the shell enclose the accommodating space; wherein, the top wall is provided with a first through hole for the positive electrode tab to pass through and a second through hole for the negative electrode tab to pass through.

[0021] According to one embodiment of the present utility model, the first end cover also includes a first rubber stop wall bent and connected to the top wall, the outer side surface of the first rubber stop wall is sealed and connected to the inner wall of the shell, and the inner side surface of the first rubber stop wall is connected to the outer side surface of the capacitor deionization filter element.

[0022] According to one embodiment of the present utility model, the water purification component also includes a fixing seat, a positive electrode electrical connector and a negative electrode electrical connector. The fixing seat is detachably arranged on the side wall. The fixing seat is provided with a first positioning hole corresponding to the positive electrode tab and a second positioning hole corresponding to the negative electrode tab. The positive electrode electrical connector is installed in the first positioning hole and is detachably connected to the positive electrode tab. The negative electrode electrical connector is installed in the second positioning hole and is detachably connected to the negative electrode tab.

[0023] According to one embodiment of the present invention, the shell is provided with a first plug hole and a second plug hole, the positive electrical connector and the negative electrical connector are located inside the shell, at least part of the positive electrical connector is exposed to the first plug hole, and at least part of the negative electrical connector is exposed to the second plug hole.

[0024] According to one embodiment of the present invention, the water purification component also includes a second end cover, the second end cover includes a box body and a sealing plate, the box body is clamped between the second end of the capacitor deionization filter element and the inner wall of the shell, the water outlet space is formed between the box body and the inner wall of the shell, the box body is provided with a storage space and a first opening and a second opening connected to the storage space, the post-filter element is limited between the top wall of the storage space and the sealing plate, a second gap is left between the sealing plate and the bottom wall of the storage space, a third gap is left between the post-filter element and the side wall of the storage space, the second gap is connected to the third gap, the first water outlet is connected to the water outlet space through the first opening, and the second water outlet of the capacitor deionization filter element is connected to the second gap through the second opening.

[0025] According to one embodiment of the present invention, the box body includes a box body and a cover body that are sealed and connected, the box body and the cover body enclose the storage space, the cover body is glued to the second end of the capacitor deionization filter element, the cover body is provided with the second opening, and the box body is provided with the first opening.

[0026] According to one embodiment of the present invention, an annular partition is provided on the inner wall of the shell, and an annular guide portion is provided on the outer side surface of the box body at the first opening. The annular partition is mounted on the outer side surface of the annular guide portion, and the annular partition and the annular guide portion enclose the water outlet space.

[0027] According to one embodiment of the present invention, the post-filter element is provided with a second water outlet channel, the second water outlet channel forms the first water outlet, the interior of the box body is formed with a first annular support portion near the first opening, and the outer side surface of the first annular support portion abuts against the inner wall of the second water outlet channel; and / or,

[0028] A second annular support portion is formed on a side of the sealing plate facing the post-filter element, and an outer side surface of the second annular support portion abuts against an inner wall of the second water outlet channel.

[0029] According to the second embodiment of the present invention, the water purification device includes: a body and the water purification component as described above; the body has an installation cavity, and the water purification component is detachably arranged in the installation cavity.

[0030] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0031] Because the positive and negative tabs of the capacitor deionization filter are located in the storage space, and the first water outlet is located in the water outlet space, this design, based on the isolated water outlet and storage spaces, achieves water and electricity isolation in the water purification component, ensuring the reliability of the water purification component's water purification operation. Furthermore, by integrating the capacitor deionization filter and the post-filter into one, forming a composite filter element, this composite filter element occupies less space and simplifies the water path structure of existing water purification components.

[0032] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 This is one of the structural diagrams of the water purification component provided by the embodiment of the present utility model.

[0035] Figure 2 This is the second structural diagram of the water purification component provided by the embodiment of the present utility model.

[0036] Figure 3 This is the third structural diagram of the water purification component provided by the embodiment of the present utility model.

[0037] Figure 4 It is a structural schematic diagram of a capacitor deionizing filter element provided in an embodiment of the present utility model.

[0038] Figure 5 This is one of the structural schematic diagrams of the water outlet pipe provided in the embodiment of the utility model.

[0039] Figure 6 This is the second schematic diagram of the water outlet pipe structure provided by the embodiment of the present utility model.

[0040] Figure 7 This is a schematic diagram of the structure of winding the electrode assembly on the water outlet pipe provided by an embodiment of the present utility model.

[0041] Figure 8 It is a structural schematic diagram of the first end cover provided in an embodiment of the present utility model.

[0042] Figure 9 It is a structural schematic diagram of the fixing seat provided in an embodiment of the utility model.

[0043] Figure 10 It is a schematic diagram of the assembly structure of the first end cover, the second end cover and the filter element provided in an embodiment of the present utility model.

[0044] Figure 11 It is a cross-sectional schematic diagram of the stacked arrangement of electrode assemblies provided in an embodiment of the present invention.

[0045] Figure 12 It is a cross-sectional schematic diagram of the electrode sheet provided in an embodiment of the present utility model.

[0046] Reference numerals:

[0047] 1. Shell; 11. First shell; 12. Second shell; 101. Water inlet port; 102. Water outlet port; 103. First plug hole; 104. Second plug hole; 111. Water outlet space; 112. Accommodation space; 121. Annular partition;

[0048] 2. Filter element; 20. Capacitive deionization filter element; 21. Water outlet pipe; 22. Electrode assembly; 23. Post-filter element; 231. Second water outlet channel; 2311. First water outlet; 211. First water outlet channel; 212. Water hole; 213. Second water outlet; 214. Diversion groove; 221. Insulation sheet; 222. Electrode sheet; 2201. Water channel; 2221. Current collector layer; 2222. Adsorption layer; 201. Positive electrode tab; 202. Negative electrode tab;

[0049] 3. First end cap; 31. Side wall; 311. Buckle; 32. Top wall; 321. Rubber stopper; 322. First through hole; 33. First rubber stopper wall;

[0050] 4. Second end cover; 41. Box body; 411. First annular support portion; 412. Second rubber retaining wall; 413. Third annular support portion; 414. Annular flow guide portion; 42. Closing plate; 421. Second annular support portion;

[0051] 5. Electrical connection assembly; 51. Positive electrical connection piece; 52. Negative electrical connection piece;

[0052] 6. Fixing seat; 61. Card slot; 62. First positioning hole. DETAILED DESCRIPTION

[0053] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0054] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0055] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0056] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation 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 different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0058] The following combination Figures 1 to 12 , the water purification component and water purification equipment provided by the embodiment of the utility model are described in detail through specific embodiments and their application scenarios.

[0059] like Figure 1 、 Figure 2 and Figure 3 As shown, the water purification component of the embodiment of the utility model includes: a shell 1 and a filter element 2.

[0060] The filter element 2 is arranged in the shell 1, and a first gap is left between the outer side surface of the filter element 2 and the inner wall of the shell 1; the first end of the filter element 2 and the inner wall of the shell 1 form an accommodating space 112, and the second end of the filter element 2 and the inner wall of the shell 1 form a water outlet space 111, and the water outlet space 111 and the accommodating space 112 are arranged opposite to each other.

[0061] The filter element 2 includes a capacitor deionization filter element 20 and a post-filter element 23. The capacitor deionization filter element 20 and the post-filter element 23 are coaxially arranged. The capacitor deionization filter element 20 and the post-filter element 23 form fluid communication in sequence. The post-filter element 23 is formed with a first water outlet 2311, and the first water outlet 2311 is connected to the water outlet space 111. The positive pole ear 201 and the negative pole ear 202 of the capacitor deionization filter element 20 both extend into the accommodating space 112. The positive pole ear 201 and the negative pole ear 202 are arranged at intervals and are suitable for connection to an external power supply; wherein, the shell 1 is provided with a water outlet port 102 connected to the water outlet space 111 and a water inlet port 101 connected to the first gap, and the water outlet port 102 and the water inlet port 101 are located on the same side of the shell 1.

[0062] It is understandable that the housing 1 is cylindrical, a receiving cavity is provided in the housing 1 , the filter element 2 is installed in the receiving cavity, and is configured to be coaxial with the housing 1 .

[0063] It should be noted that the post-filter element 23 may be a carbon rod, which can further adsorb organic matter and improve the taste, while intercepting impurities such as the adsorption layer 2222 that may fall from the capacitor deionization filter element 20.

[0064] The water enters the capacitor deionization filter element 20 from the outer side surface of the capacitor deionization filter element 20, and the water filtered by the capacitor deionization filter element 20 flows out from the second water outlet 213 set along the axial direction of the capacitor deionization filter element 20. The water flowing out of the second water outlet 213 enters the post-filter element 23 through the outer side surface of the post-filter element 23, and finally the water filtered by the post-filter element 23 flows out from the first water outlet 2311 set along the axial direction of the post-filter element 23.

[0065] The positive electrode tab 201 and the negative electrode tab 202 are located at the same end of the capacitor deionization filter element 20, that is, the tab and the first water outlet 2311 are arranged relative to each other, respectively located at the first end and the second end of the filter element 2. Since the positive electrode tab 201 and the negative electrode tab 202 of the capacitor deionization filter element 20 are arranged in the accommodating space 112, and the first water outlet 2311 is arranged in the water outlet space 111, this design is based on the isolated water outlet space 111 and the accommodating space 112, which realizes the water and electricity isolation of the water purification component and ensures the reliability of the water purification work of the water purification component. In addition, by integrating the capacitor deionization filter element 20 and the post-filter element 23 into one, to form a composite filter element, this composite filter element takes up little space and simplifies the water channel structure of the existing water purification component.

[0066] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the capacitive deionization filter element 20 includes a water outlet pipe 21 and an electrode assembly 22. The electrode assembly 22 is wound around the peripheral wall of the water outlet pipe 21. The electrode assembly 22 is sealed at both ends along the axial direction of the water outlet pipe 21. The outer side of the electrode assembly 22 is used to receive the input of raw water, and the inner side of the electrode assembly 22 is used to output clean water or wastewater.

[0067] The water outlet pipe 21 has a first water outlet channel 211, a water hole 212 communicating with the first water outlet channel 211, and a second water outlet 213. The first water outlet channel 211 is disposed within the water outlet pipe 21, the first water outlet channel 211 is formed with the second water outlet 213, and the water hole 212 is disposed on the peripheral wall of the water outlet pipe 21. For example, the water outlet is disposed at the first end of the water outlet pipe 21, and the water hole 212 is disposed on the peripheral wall near the second end of the water outlet pipe 21.

[0068] It can be understood that the electrode assembly 22 generally includes stacked positive and negative electrodes, which are isolated from each other, and a flow channel for the flow of water is formed between the positive and negative electrodes; when the electrode assembly 22 is wound, the inner side surface of one end of the electrode assembly 22 contacts the peripheral wall of the water outlet pipe 21, and then the electrode assembly 22 is wound layer by layer with the water outlet pipe 21 as the central axis until the electrode assembly 22 is wound in a columnar distribution.

[0069] Since the electrode assembly 22 is wound around the peripheral wall of the water outlet pipe 21, the electrode assembly 22 is sealed at both ends along the axial direction of the water outlet pipe 21. When a positive voltage is applied to the positive electrode sheet and the negative electrode sheet, the cations, anions or charged particles in the water body will migrate to the surface of the positive electrode sheet and the negative electrode sheet under the action of the electric field force, so that the inner side of the electrode assembly 22 outputs the clean water after desalination treatment; when a reverse voltage is applied to the positive electrode sheet and the negative electrode sheet, or when the voltage is stopped, the anions, cations or charged particles adsorbed on the surface of the positive electrode sheet and the negative electrode sheet will automatically detach, so that the inner side of the electrode assembly 22 outputs wastewater with a higher concentration.

[0070] Considering that the surrounding wall of the existing water outlet pipe 21 is usually densely covered with multiple water holes 212, the water output from the inner side of the electrode assembly 22 will evenly pass through each water hole 212 and enter the water outlet channel. If bubbles appear in the electrode assembly 22, the bubbles may adhere to the surface of the positive electrode sheet and / or the negative electrode sheet, and the flowing water will not have an effect on the desorption of the bubbles. However, the present application sets the water hole 212 on the peripheral wall near the second end of the water outlet pipe 21, so that the water hole 212 is set away from the water outlet. This design can limit the water output from the inner side of the electrode assembly 22 to gradually converge toward the area where the water hole 212 is located, and then be output in sequence through the water hole 212, the water outlet channel and the water outlet. In the process of water flow, since the water hole 212 is set away from the water outlet, the flowing water will gradually converge toward the area where the water hole 212 is located. This will gradually squeeze the bubbles generated in the electrode assembly 22 to the area where the water hole 212 is located, and then enter the water outlet channel from the water hole 212 and be discharged together with the water, thereby effectively removing the bubbles appearing in the capacitor deionization filter element 20.

[0071] From the above, it can be seen that the water purification component shown in the utility model can effectively discharge the bubbles generated in the filter element 20 during the desalination process of the capacitor deionization filter element 20, prevent the capacitor deionization filter element 20 from generating noise during operation, ensure the stability of the internal electric field of the electrode assembly 22, and thus also ensure the water purification effect of the capacitor deionization filter element 20.

[0072] It should be pointed out here that the capacitive deionization filter element 20 also includes a protective cover, for example, the protective cover is a cylindrical film, and the protective cover is arranged on the peripheral wall of the electrode assembly 22. The protective cover is constructed with multiple water outlets to ensure that the water body can reach the outside of the electrode assembly 22 through the water outlets, and then the electrode assembly 22 desalinates the received water body.

[0073] In some embodiments, as Figure 5 and Figure 6 As shown, a guide groove 214 is provided on the peripheral wall of the water outlet pipe 21 , and fluid communication is formed between the guide groove 214 and the water hole 212 .

[0074] It can be understood that by providing a guide groove 214 on the peripheral wall of the water outlet pipe 21, it is possible to avoid the gap between the inner side of the electrode assembly 22 and the peripheral wall of the water outlet pipe 21 being too small to limit the flow of water, thereby facilitating the use of the guide groove 214 to collect the purified water output from the inner side of the electrode assembly 22, and then drain the collected purified water into the water hole 212.

[0075] The depth of the guide groove 214 can be set to 2-5 mm.

[0076] In some embodiments, as Figure 5 As shown, since the length of the water outlet pipe 21 is roughly the same as the axial length of the electrode assembly 22 along the central axis, one end of the guide groove 214 is arranged on the peripheral wall near the first end of the water outlet pipe 21, and the other end is arranged on the peripheral wall near the second end of the water outlet pipe 21. The guide groove 214 can be used at various positions along the axial direction of the water outlet pipe 21 to effectively collect the purified water output from the inner side of the electrode assembly 22, thereby ensuring the drainage effect of the purified water.

[0077] The guide groove 214 can be arranged along a spiral trajectory on the peripheral wall of the water outlet pipe 21 , or can be arranged along a straight trajectory on the peripheral wall of the water outlet pipe 21 , and there is no specific limitation on this.

[0078] In some embodiments, as Figure 5 As shown, the guide groove 214 is configured to extend along the axial direction of the water outlet pipe 21 . This design can effectively reduce the drainage path of the purified water and also facilitate the processing of the guide groove 214 .

[0079] At the same time, since the inner and outer ends of the electrode assembly 22 relative to the water outlet pipe 21 correspond to form the water outlet end and the water inlet end, the electrode assembly 22 is configured to be wound around the peripheral wall of the water outlet pipe 21, and the water outlet end of the electrode assembly 22 extends along the axial direction of the water outlet pipe 21. By setting the guide groove 214 to extend along the axial direction of the water outlet pipe 21, it is convenient to set the guide groove 214 relative to the water outlet end of the electrode assembly 22, thereby ensuring the drainage effect of the purified water.

[0080] In some embodiments, as Figure 6 As shown, in order to enhance the drainage effect of purified water, multiple guide grooves 214 and multiple water holes 212 are provided, and multiple guide grooves 214 and multiple water holes 212 are arranged relatively to each other, and at least part of the multiple water holes 212 are arranged along the circumference of the water outlet pipe 21.

[0081] Optionally, each guide groove 214 may be configured to form fluid communication with a plurality of water holes 212 arranged along the axial direction of the water outlet pipe 21 , and each guide groove 214 extends along the axial direction of the water outlet pipe 21 .

[0082] Optionally, multiple guide grooves 214 and multiple water holes 212 are arranged one by one relative to each other, multiple water holes 212 are arranged along the circumference of the water outlet pipe 21, and multiple guide grooves 214 are also arranged along the circumference of the water outlet pipe 21, and each guide groove 214 is extended along the axial direction of the water outlet pipe 21.

[0083] In some embodiments, there are multiple water holes 212, and the sum of the water flow areas of the multiple water holes 212 is not less than 20 mm². For example, the sum of the water flow areas of the multiple water holes 212 is 20 mm², 25 mm², 35 mm² and 50 mm², etc. This design avoids a large flow resistance when the water passes through the water holes 212, preventing the water holes 212 from limiting the flow of the water.

[0084] In some embodiments, in order to ensure the exhaust effect of the capacitor deionization filter 20, the axial distance between the water hole 212 and the second end of the water outlet pipe 21 is set to be no more than 15% of the length of the water outlet pipe 21.

[0085] Optionally, the length of the capacitor deionization filter element 20 is approximately 333-350 mm, and the axial distance between the water hole 212 and the second end of the outlet pipe 21 can be set to be less than 50 mm, so that the water hole 212 is as far away from the water outlet of the capacitor deionization filter element 20 as possible, thereby ensuring the exhaust effect.

[0086] In some embodiments, as Figure 7 、 Figure 11 and Figure 12 As shown, the electrode assembly 22 includes: an insulating sheet 221 and at least two layers of electrode sheets 222, the insulating sheet 221 and the electrode sheets 222 are stacked, and the insulating sheet 221 is sandwiched between two adjacent layers of electrode sheets 222;

[0087] The electrode sheet 222 includes a current collector layer 2221 and an adsorption layer 2222. The adsorption layer 2222 is provided on both the front and back sides of the current collector layer 2221. Two adjacent electrode sheets 222 are configured as a positive electrode sheet and a negative electrode sheet, respectively. A water passage 2201 for accommodating the insulating sheet 221 is formed between the positive electrode sheet and the negative electrode sheet.

[0088] The inner and outer ends of the electrode assembly 22 relative to the water outlet pipe 21 are correspondingly formed as a water outlet end and a water inlet end; the water inlet end is connected to the water outlet end through the water channel 2201, and the water outlet end extends to the peripheral wall of the water outlet pipe 21 and forms a fluid connection with the water hole 212.

[0089] It is understood that the insulating sheets 221 and electrode sheets 222 are stacked in an alternating arrangement so that the insulating sheet 221 is sandwiched between two adjacent layers of electrode sheets 222. Since the two adjacent layers of electrode sheets 222 are configured as positive and negative electrodes, respectively, when the number of electrode sheets 222 is greater than two, in order to meet the raw water filtration requirements of the electrode assembly 22, when the electrode assembly 22 is powered, the positive and negative electrodes can be arranged alternately in the stacking direction, with the insulating sheet 221 sandwiched between the positive and negative electrodes. Furthermore, the current collector layer 2221 of the positive electrode sheet is electrically connected to the positive electrode of the power supply, and the current collector layer 2221 of the negative electrode sheet is electrically connected to the negative electrode of the power supply. When the number of electrode sheets 222 is equal to two, the insulating sheet 221 can be directly sandwiched between the positive and negative electrodes.

[0090] For the electrode sheet 222, the current collector layer 2221 of the electrode sheet 222 can be made of metal or graphite material, so that the current collector layer 2221 forms a conductive layer, and the adsorption layer 2222 of the electrode sheet 222 can be made of activated carbon and other adsorption materials to achieve adsorption of ions in the raw water.

[0091] At the same time, the insulating sheet 221 can be made of plastic material. The insulating sheet 221 is used to play a supporting role between the positive electrode sheet and the negative electrode sheet, not only preventing the positive electrode sheet and the negative electrode sheet from short-circuiting, but also ensuring that a water channel 2201 is formed between the positive electrode sheet and the negative electrode sheet.

[0092] In practice, the capacitive deionization filter element 20 operates through an adsorption purification process and a desorption regeneration process. When two adjacent electrode sheets 222 are electrically connected to the positive and negative poles of a power source and the power supply is activated, the anions and cations in the raw water are attracted to the oppositely charged electrode sheet 222 and adsorbed by the adsorption layer 2222 on the electrode sheet 222. This operation of the capacitive deionization filter element 20 is called the adsorption purification process.

[0093] Accordingly, when the power supply is stopped or a reverse voltage is applied to two adjacent electrode sheets 222, the ions adsorbed by the adsorption layer 2222 are released into the water body of the water channel 2201. At this time, the water channel 2201 will output concentrated water with a higher ion concentration.

[0094] As can be seen from the above, the capacitive deionization filter element 20 shown in this embodiment realizes the integrated design of the electrode sheet 222 by setting the adsorption layer 2222 on the front and back sides of the current collector layer 2221. It is only necessary to stack the electrode sheet 222 and the insulating sheet 221 in an alternating arrangement to form the electrode assembly 22; this stacking arrangement design of the electrode assembly 22 simplifies the arrangement structure of the electrode assembly 22, facilitates processing and production, and helps to reduce production costs.

[0095] At the same time, in actual applications, simply electrically connecting two adjacent layers of electrode sheets 222 to the positive and negative poles of a power source can adsorb ions in the raw water passing through the water passage 2201, achieving the purpose of raw water purification. Because each electrode sheet 222 has adsorption layers 2222 on both sides of the current collector layer 2221, both sides of each electrode sheet 222 can adsorb ions, thereby ensuring a certain degree of raw water purification. The capacitive deionization filter element 20 can effectively remove heavy metal ions from water, retaining beneficial ions required by the human body, and meeting the needs of household water purification.

[0096] In some embodiments, in order to ensure the purification effect of raw water, two adjacent layers of electrode sheets 222 are arranged relative to each other along the stacking direction to ensure the coverage range of the electric field between the two adjacent layers of electrode sheets 222 as much as possible, and then remove anions, cations and other charged particles in the raw water based on the electric field between the two adjacent layers of electrode sheets 222.

[0097] Furthermore, by staggering the insulating sheets 221 and the electrode sheets 222 along the stacking direction, the electrode sheets 222 are hidden between two adjacent layers of insulating sheets 221. This design not only ensures electrical isolation between two adjacent layers of electrode sheets 222, but also facilitates positioning the water outlet end of the electrode assembly 22 opposite the water holes 212 and / or guide grooves 214 on the peripheral wall of the water outlet pipe 21, thereby ensuring fluid flow through the water passage 2201 in the electrode assembly 22 and the water outlet passage in the water outlet pipe 21. The stacking direction is along the thickness of the insulating sheets 221 or the electrode sheets 222.

[0098] In some embodiments, the peripheral wall of the water outlet pipe 21 is provided with multiple groups of water holes 212 along the circumferential direction, for example, the multiple groups of water holes 212 are evenly arranged along the circumference of the water outlet pipe 21; each group of water holes 212 is arranged along the axial direction of the water outlet pipe 21; the number of electrode sheets 222 is greater than two layers, so that the electrode assembly 22 forms multiple water channels 2201, and the inner end of the electrode assembly 22 forms multiple water outlet ends corresponding to the multiple water channels 2201, and the multiple water outlet ends are arranged opposite to the multiple groups of water holes 212.

[0099] It is understandable that by setting the number of electrode sheets 222 to be greater than two layers, multiple water channels 2201 can be formed based on the electrode assembly 22, and the raw water flowing in multiple paths in the capacitor deionization filter element 20 can be purified at the same time, thereby improving the purification efficiency of the raw water.

[0100] At the same time, by setting multiple water outlet ends and multiple groups of water holes 212 relative to each other, the smoothness of the water path between each water channel 2201 and the water outlet channel in the outlet pipe 21 can be ensured, which is beneficial to ensuring the clean water outlet flow rate of the capacitor deionization filter element 20.

[0101] In some embodiments, as Figure 3 、 Figure 4 and Figure 7 As shown, in order to facilitate the connection of two adjacent electrode sheets 222 to the positive and negative poles of the power supply, the electrode assembly 22 also includes: a positive electrode tab 201 and a negative electrode tab 202; the positive electrode tab 201 is electrically connected to the current collector layer 2221 of the positive electrode sheet; the negative electrode tab 202 is electrically connected to the current collector layer 2221 of the negative electrode sheet.

[0102] Specifically, a first extension portion is provided on one side of the current collector layer 2221 of each positive electrode sheet, and a second extension portion is provided on one side of the current collector layer 2221 of each negative electrode sheet; when the electrode assembly 22 is wound around the peripheral wall of the water outlet pipe 21, the first extension portions of each positive electrode sheet are stacked to form a positive electrode tab 201, and the second extension portions of each negative electrode sheet are stacked to form a negative electrode tab 202.

[0103] In some embodiments, the current collector layer 2221 includes any one of copper foil, titanium foil, and graphite paper, and the current collector layer 2221 is configured to be electrically connected to the positive electrode or the negative electrode of the power source.

[0104] The adsorption layer 2222 is attached to the surface of the current collector layer 2221 . The adsorption layer 2222 includes an activated carbon layer. The activated carbon layer has excellent adsorption properties and can adsorb ions in the raw water.

[0105] In some embodiments, since the thickness of the current collector layer 2221 of the electrode sheet 222 determines the supporting strength, winding difficulty and cost of the electrode sheet 222, if the current collector layer 2221 is too thin, the current collector layer 2221 is easily damaged, and if the current collector layer 2221 is too thick, the cost of the electrode sheet 222 is too high, so the thickness of the current collector layer 2221 is set to 15-50 microns; optionally, the thickness of the current collector layer 2221 is specifically 25 microns, 30 microns, 35 microns, 40 microns, 45 microns, 50 microns, etc.

[0106] At the same time, since the thickness of the adsorption layer 2222 of the electrode sheet 222 determines the adsorption capacity and adsorption speed, however, if the adsorption layer 2222 is too thick, the adsorption layer 2222 may crack during winding, so the thickness of the adsorption layer 2222 is set to 25-200 microns; optionally, the thickness of the adsorption layer 2222 is specifically 25 microns, 30 microns, 50 microns, 65 microns, 100 microns, 150 microns, 185 microns, 200 microns, etc.

[0107] In some embodiments, the insulating sheet 221 may be configured as a porous structure, for example, the insulating sheet 221 includes an insulating woven fabric or an insulating mesh. The insulating woven fabric may be a woven fabric or a melt-blown fabric.

[0108] In this way, although the insulating sheet 221 is arranged in the water channel 2201, since the insulating sheet 221 is a porous structure, the insulating sheet 221 will not affect the migration of ions between two adjacent electrode sheets 222, thereby not affecting the adsorption of ions in the water body by the adsorption layer 2222 of the electrode sheet 222. The insulating sheet 221 will ensure the uniform flow of water in the water channel 2201, and can ensure the adsorption effect of the adsorption layer 2222 on ions to a certain extent.

[0109] In some embodiments, considering that the greater the thickness of the insulating sheet 221, the smaller the water flow pressure loss and the lower the blockage risk, however, the greater the thickness of the insulating sheet 221, the greater the distance between two adjacent electrode sheets 222, and thus the greater the resistance between two adjacent electrode sheets 222, resulting in worse water purification performance. Therefore, in order to comprehensively consider the pressure loss and water purification effect, the thickness of the insulating sheet 221 is set to 0.1-1.0 mm; optionally, the thickness of the insulating sheet 221 is specifically set to 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, etc.

[0110] like Figure 2 、 Figure 3 and Figure 8 As shown, the water purification component also includes a first end cover 3, which includes a side wall 31 and a top wall 32 connected to each other, the side wall 31 is connected to the inner wall of the shell 1, and the top wall 32 is sealed to the first end of the capacitor deionization filter element 20 by a filling glue, and the top wall 32, the side wall 31 and the inner wall of the shell 1 form an accommodating space 112; wherein, the top wall 32 is provided with a first through hole 322 for the positive electrode tab 201 to pass through and a second through hole for the negative electrode tab 202 to pass through.

[0111] It can be understood that the top wall 32 is disc-shaped, and the side wall 31 extends circumferentially relative to the central axis of the capacitor deionization filter element 20; the side wall 31 is arranged on the side of the top wall 32 away from the capacitor deionization filter element 20, and abuts against the inner wall of the first end of the shell 1, so that the top wall 32, the side wall 31 and the inner wall of the shell 1 enclose a receiving space 112.

[0112] like Figure 2 、 Figure 3 and Figure 8 As shown, the first end cover 3 also includes: a first rubber blocking wall 33 bent and connected to the top wall 32, the outer side surface of the first rubber blocking wall 33 is sealed with the inner wall of the shell 1, the top wall 32 and the first end of the capacitor deionizing filter element 20 are sealed by filling glue, and the inner side surface of the first rubber blocking wall 33 is in contact with the outer side surface of the capacitor deionizing filter element 20.

[0113] It is understandable that the filling glue forms a sealant layer at the first end of the capacitor deionization filter element 20 , and the top wall 32 is in contact with the surface of the sealant layer to achieve sealing of the first end of the capacitor deionization filter element 20 .

[0114] The first glue retaining wall 33 is arranged on the outer edge of the top wall 32 and extends circumferentially relative to the center of the top wall 32. The inner diameter of the first glue retaining wall 33 is adapted to the diameter of the capacitor deionization filter element 20. The first glue retaining wall 33 is used to prevent the filling glue from overflowing to the peripheral wall of the capacitor deionization filter element 20.

[0115] A first support rib may be provided on a side of the top wall 32 facing the capacitor deionization filter element 20. The first support rib may be configured to extend radially along the capacitor deionization filter element 20. The first support rib is used to ensure the thickness of the filling glue at the first end of the capacitor deionization filter element 20 and is beneficial to ensuring the molding quality of the filling glue.

[0116] The outer side surface of the first rubber stop wall 33 is sealedly connected to the inner wall of the shell 1 to prevent water from entering the accommodating space 112 formed by the top wall 32 , the side wall 31 and the inner wall of the shell 1 .

[0117] In some embodiments, as Figure 2 As shown, in order to ensure the molding quality of the filling glue, the first end cover 3 also includes a glue baffle 321, which is arranged on the side of the top wall 32 facing the first end of the capacitor deionization filter element 20 and is arranged close to the outer side surface of the filter element 2.

[0118] That is, the annular glue blocking plate 321 is arranged on the inner side of the top wall 32, and the annular glue blocking plate 321 is arranged coaxially with the first glue blocking wall 33, and the glue blocking plate 321 is spaced apart from the first glue blocking wall 33. The glue blocking plate 321 is used to limit the filling glue from flowing toward the area where the through hole is located.

[0119] In some embodiments, as Figure 8 As shown, the projected area of ​​the first through hole 322 on the first end of the filter element 2 is larger than the projected area of ​​the positive electrode tab 201 on the first end of the filter element 2, and the projected area of ​​the second through hole on the first end of the filter element 2 is larger than the projected area of ​​the negative electrode tab 202 on the first end of the filter element 2.

[0120] In this way, it is convenient to seal the positive electrode tab 201 and the negative electrode tab 202 at the first end of the capacitor deionization filter element 20. That is to say, after the area between the rubber baffle 321 and the first rubber baffle wall 33 at the first end of the capacitor deionization filter element 20 is sealed, the remaining area of ​​the first end of the filter element 2 (the area enclosed by the rubber baffle 321) is sealed through the first through hole 322 and the second through hole.

[0121] In an optional embodiment, if Figure 2 、 Figure 3 、 Figure 8 and Figure 9 As shown, the water purification component also includes a fixing seat 6, a positive electrode electrical connector 51 and a negative electrode electrical connector 52. The fixing seat 6 is detachably arranged on the side wall 31. The fixing seat 6 is provided with a first positioning hole 62 corresponding to the positive electrode tab 201 and a second positioning hole corresponding to the negative electrode tab 202. The positive electrode electrical connector 51 is installed in the first positioning hole 62 and is detachably connected to the positive electrode tab 201. The negative electrode electrical connector 52 is installed in the second positioning hole and is detachably connected to the negative electrode tab 202.

[0122] The electrical connection assembly 5 includes a positive electrical connector 51 and a negative electrical connector 52. The positive electrical connector 51 is electrically connected to the positive electrode tab 201 and can be inserted into the first positioning hole 62. The negative electrical connector 52 is electrically connected to the negative electrode tab 202 and can be inserted into the second positioning hole. In this way, the coaxiality of the positive and negative electrical connectors 51 and 52 can be ensured by the first and second positioning holes.

[0123] In order to improve the installation stability of the fixing seat 6 and the first end cover 3, a card slot 61 is provided on the side of the fixing seat 6 facing the top wall 32, and a buckle 311 is provided on the inner side of the side wall 31. The fixing seat 6 and the first end cover 3 are limited in the circumferential direction by the card slot 61 and the buckle 311.

[0124] In some embodiments, as Figure 9 As shown, each of the first positioning hole 62 and the second positioning hole is a stepped hole, and the stepped hole is provided with a stepped surface. The outer side surface of each electrical connector is provided with an abutting surface, and the abutting surface abuts against the stepped surface.

[0125] That is to say, under the action of the fixing seat 6, the coaxiality of the electrical connector and the tab can be ensured, and the electrical connector will not move excessively during the docking process to avoid squeezing damage to the tab.

[0126] In some embodiments, as Figure 3 As shown, each of the positive and negative electrical connectors 51 and 52 is provided with a slot into which the corresponding tab is inserted. For example, the bottom of the positive electrical connector 51 is provided with a slot into which the positive tab 201 can be inserted. This ensures quick and stable connection between the electrical connector and the tab.

[0127] Among them, the electrical connector has a conductive surface and a connecting surface, which are arranged opposite to each other. The conductive surface is used to connect to the external power supply, and the connecting surface is used to connect to the pole ear. The conductive surface of each electrical connector is flush with the side of the fixing seat 6 away from the top wall 32.

[0128] To ensure accurate connection between the external power source and the positive and negative electrical connectors 51 and 52, the positive and negative electrical connectors 51 and 52 are located inside the housing 1. The projected area of ​​the first insertion hole 103 on the bottom wall is less than or equal to the projected area of ​​the conductive surface of the positive electrical connector 51 on the bottom wall, and the projected area of ​​the second insertion hole 104 on the bottom wall is less than or equal to the projected area of ​​the conductive surface of the negative electrical connector 52 on the bottom wall. In other words, the positive electrical connector 51 does not extend into the first insertion hole 103, and the negative electrical connector 52 does not extend into the first insertion hole 103. The external positive power supply terminal can enter the first insertion hole 103 to connect with the positive electrical connector 51, and the external negative power supply terminal can enter the second insertion hole 104 to connect with the negative electrical connector 52.

[0129] like Figure 3 As shown, the shell 1 is provided with a first plug hole 103 and a second plug hole 104, the positive electrical connector 51 and the negative electrical connector 52 are located inside the shell 1, at least part of the positive electrical connector 51 is exposed in the first plug hole 103, and at least part of the negative electrical connector 52 is exposed in the second plug hole 104.

[0130] Specifically, the housing 1 is provided with a first plug hole 103 and a second plug hole 104 that communicate with the accommodating space 112. The first plug hole 103 and the second plug hole 104 are located on one side of the housing 1, and the water outlet port 102 and the water inlet port 101 are located on the other side of the housing 1. The first plug hole 103 corresponds to the positive electrical connector 51, and the second plug hole 104 corresponds to the negative electrical connector 52. For example, the positive electrical connector 51 can be exposed in the first through hole 322, and the negative electrical connector 52 can be exposed in the second through hole. In this way, the positive and negative tabs 201 and 202 can be connected to an external power source.

[0131] like Figure 2 and Figure 3 As shown, the shell 1 includes a first shell 11 and a second shell 12 connected to each other, the first shell 11 is provided with a first plug hole 103 and a second plug hole 104, the first end of the capacitor deionization filter element 20 has a positive pole ear 201 and a negative pole ear 202, the positive pole ear 201 and the negative pole ear 202 are located inside the first shell 11, and at least part of the positive pole electrical connector 51 is exposed to the first plug hole 103, and at least part of the negative pole electrical connector 52 is exposed to the second plug hole 104, the outer side surface of the filter element 2 is sealed with the inner wall of the second shell 12 near its first end, and a first gap is left between the outer side surface of the filter element 2 and the inner wall of the second shell 12, the second shell 12 is provided with a water outlet port 102 and a water inlet port 101 connected to the first gap, and the water outlet located at the second end of the filter element 2 is connected to the water outlet port 102.

[0132] It should be noted that the first shell 11 has a first plug hole 103 and a second plug hole 104, and the second shell 12 has a water inlet port 101 and a water outlet port 102, that is, the first plug hole 103 and the second plug hole 104 are located on one side of the shell 1, and the water inlet port 101 and the water outlet port 102 are located on the other side of the shell 1.

[0133] In addition, the outer side surface of the filter element 2 is sealedly connected to the inner wall of the second shell 12 near its first end, so that the first plug hole 103 and the second plug hole 104 can be isolated from the water inlet port 101 and the water outlet port 102, and the water entering the interior of the second shell 12 through the water inlet port 101 cannot enter the interior of the first shell 11.

[0134] When assembling the filter element 2 to the housing 1, the filter element 2 is first assembled into the second housing 12 so that the water outlet at the second end of the filter element 2 communicates with the water outlet port 102 at the second housing 12. Thereafter, the first housing 11 and the second housing 12 are docked so that at least a portion of the positive electrical connector 51 at the first end of the filter element 2 is exposed to the first insertion hole 103, and at least a portion of the negative electrical connector 52 is exposed to the second insertion hole 104. After the positive electrical connector 51 is docked with the first insertion hole 103, and the negative electrical connector 52 is docked with the second insertion hole 104, the connection between the first housing 11 and the second housing 12 is completed. In this way, by arranging the housing 1 into the first housing 11 and the second housing 12, the docking accuracy of the positive electrical connector 51 and the first insertion hole 103, and the docking accuracy of the negative electrical connector 52 and the second insertion hole 104 can be ensured.

[0135] In actual application, a layer of filling glue is first placed in a first area of ​​the first end of the filter element 2, the first area being the area between the first glue retaining wall 33 and the glue retaining plate 321. Then, the first end cap 3 is placed on the first end of the filter element 2. Since the first glue retaining wall 33 is in contact with the peripheral wall of the capacitor deionization filter element 20 and extends circumferentially relative to the water outlet port 102, the first glue retaining wall 33 not only prevents the filling glue from overflowing to the side of the filter element 2, but also radially limits the filter element 2, ensuring the coaxiality of the filter element 2 and the water outlet port 102. Next, a layer of filling glue is placed in a second area of ​​the first end of the filter element 2, the second area being the area enclosed by the glue retaining plate 321, thereby completing the sealing of the first end of the filter element 2. Subsequently, the fixing seat 6 is installed on the side wall 31. Under the limiting cooperation of the slot 61 and the buckle 311, the first positioning hole 62 can correspond to the positive pole ear 201, and the second positioning hole can correspond to the negative pole ear 202. After that, the positive pole electrical connector 51 is installed in the first positioning hole 62 and plugged into the positive pole ear 201. The negative pole electrical connector 52 is installed in the second positioning hole and plugged into the negative pole ear 202. That is to say, under the action of the fixing seat 6, the coaxiality of the docking between the electrical connector and the ear can be ensured, and it can be ensured that during the docking process between the electrical connector and the ear, the electrical connector will not move excessively to avoid damage to the ear.

[0136] In an optional embodiment, if Figure 2 、 Figure 3 and Figure 10 As shown, the water purification component also includes a second end cover 4, the second end cover 4 includes a box body 41 and a sealing plate 42, the box body 41 is clamped between the second end of the capacitor deionization filter element 20 and the inner wall of the shell 1, and a water outlet space 111 is formed between the box body 41 and the inner wall of the shell 1, the box body 41 is provided with a storage space and a first opening and a second opening connected to the storage space, the post-filter element 23 is limited between the top wall 32 of the storage space and the sealing plate 42, a second gap is left between the sealing plate 42 and the bottom wall of the storage space, a third gap is left between the outer side surface of the post-filter element 23 and the side wall 31 of the storage space, the second gap is connected to the third gap, the first water outlet 2311 is connected to the water outlet space 111 through the first opening, and the second water outlet 213 of the capacitor deionization filter element 20 is connected to the second gap through the second opening.

[0137] It should be noted that the housing 41 can be cylindrical, the post-filter element 23 can be cylindrical, and the post-filter element 23 can be coaxially arranged with the housing 41. The housing 41 has a first side and a second side opposite each other, the first side is provided with a second opening, the first side is glued to the end face of the capacitor deionization filter element 20, and the second opening is connected to the second water outlet 213 of the capacitor deionization filter element 20, and the second side is provided with a first opening, and a water outlet space 111 is formed between the second side and the inner wall of the housing 1. At this time, the first water outlet 2311, the first opening, the water outlet space 111, and the water outlet port 102 are connected in sequence.

[0138] In addition, the first end of the rear filter element 23 is glued to the top wall 32 of the storage space, and the first water outlet 2311 located at the first end of the rear filter element 23 corresponds to and is connected to the first opening, and the second end of the rear filter element 23 is glued to the sealing plate 42.

[0139] In actual application, water enters the capacitor deionization filter element 20 from the outer side of the capacitor deionization filter element 20, and the capacitor deionization filter element 20 completes the first purification of the water body. The water body purified by the capacitor deionization filter element 20 flows out from the second water outlet 213. Thereafter, the water body flows into the second gap through the second opening, and then flows into the third gap from the second gap. In this way, the water body can complete the second purification through the post-filter element 23, and the purified water body flows out through the first water outlet 2311. The water body flowing out through the first water outlet 2311 flows through the first opening and the water outlet space 111 in turn, and finally flows out from the water outlet port 102.

[0140] like Figure 2 、 Figure 3 as well as Figure 10 As shown, in order to facilitate the installation of the post-filter element 23 in the box body 41 and the completion of the gluing of the post-filter element 23 and the sealing plate 42, the box body 41 includes a box body and a cover body that are sealed and connected. The box body and the cover body enclose a storage space, the cover body is provided with a second opening, and the box body is provided with a first opening. In other words, the installation of the post-filter element 23 and the box body can be completed first. After the post-filter element 23 and the box body are installed, the gluing of the post-filter element 23 and the sealing plate 42 can be completed. Finally, the connection between the box body and the cover body, as well as the connection between the capacitor deionization filter element 20 and the cover body, can be completed.

[0141] It should be noted that the cover includes a bent sealing portion and a connecting portion. The sealing portion is glued to the end of the capacitor deionizing filter element 20 away from the first end cap 3. The inner side of the connecting portion is sealed to the outer side of the box body. In other words, the second opening is provided in the sealing portion.

[0142] like Figure 2 、 Figure 3 and Figure 10As shown, the inner wall of the shell 1 is provided with an annular partition 121, and the outer side of the box body 41 is provided with an annular guide portion 414 at the first opening. The annular partition 121 is mounted on the outer side of the annular guide portion 414, and the annular partition 121 and the annular guide portion 414 enclose a water outlet space 111.

[0143] It should be noted that the outer side surface of the annular guide portion 414 and the inner side surface of the annular partition 121 are directly sealed and connected. For example, a plurality of sealing rings are arranged along the axial direction of the outer side surface of the annular guide portion 414, so as to prevent the water flowing out of the first opening from entering the interior of the shell 1 through the water outlet space 111.

[0144] like Figure 2 and Figure 3 As shown, the post-filter element 23 is provided with a second water outlet channel 231, which is formed with a first water outlet 2311. A first annular support portion 411 is formed inside the housing 41 near the first opening, and the outer side of the first annular support portion 411 abuts against the inner wall of the second water outlet channel 231. A second annular support portion 421 is formed on the side of the sealing plate 42 facing the post-filter element 23, and the outer side of the second annular support portion 421 abuts against the inner wall of the second water outlet channel 231.

[0145] The post-filter element 23 can be cylindrical, and a second water outlet channel 231 is provided at the central axis of the post-filter element 23. The post-filter element 23 is limited by the first annular support portion 411 and the second annular support portion 421, so that the coaxiality of the post-filter element 23 and the box body 41 can be ensured.

[0146] It is understandable that the cover body also includes a second adhesive retaining wall 412 that is bent and connected to the sealing portion. The bending direction of the second adhesive retaining wall 412 is opposite to the bending direction of the connecting portion, and the second adhesive retaining wall 412 is connected to the outer side surface of the capacitor deionization filter element 20.

[0147] It should be noted that a third annular support portion 413 is formed on the outside of the box body 41 near the second opening. The third annular support portion 413 extends into the interior of the water outlet pipe 21, and the outer side surface of the third annular support portion 413 is sealed and connected to the inner wall of the water outlet pipe 21.

[0148] It is particularly important to point out that a fourth gap is directly left between the outer side surface of the box body 41 and the inner wall of the shell 1, so that the water inlet port 101 can be connected to the first gap through the fourth gap, and the water can reach the outer side surface of the capacitor deionization filter element 20.

[0149] In a second aspect, an embodiment of the present invention further provides a water purification device, comprising: a body and the water purification component as described above; the body has an installation cavity, and the water purification component is detachably arranged in the installation cavity.

[0150] Specifically, the water purification device may be an instant hot water dispenser, and the machine body may be provided with an installation port communicating with the installation cavity, and the capacitor deionization filter element 20 may be inserted into the installation cavity through the installation port.

[0151] Since the water purification equipment includes a water purification component, the specific structure of the water purification component refers to the above embodiment, and the water purification equipment of this embodiment includes all the technical solutions of the above embodiment, and therefore has at least all the beneficial effects achieved by all the technical solutions of the above embodiment, which will not be repeated here.

[0152] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A water purification component, characterized in that: include: housing (1); A filter element (2) is arranged in the housing (1), a first gap is left between the outer side surface of the filter element (2) and the inner wall of the housing (1), the filter element (2) comprises a capacitor deionizing filter element (20) and a post filter element (23) arranged coaxially, the capacitor deionizing filter element (20) and the post filter element (23) are fluidically connected in sequence, and the post filter element (23) is formed with a first water outlet (2311); the capacitor deionizing filter element (20) and the inner wall of the housing (1) form an accommodating space (112 ), the post-filter element (23) and the inner wall of the housing (1) form a water outlet space (111), the water outlet space (111) and the accommodating space (112) are arranged relative to each other, the first water outlet (2311) is connected to the water outlet space (111), the positive electrode tab (201) and the negative electrode tab (202) of the capacitor deionizing filter element (20) both extend into the accommodating space (112), the positive electrode tab (201) and the negative electrode tab (202) are arranged at intervals and are suitable for connection to an external power supply; The housing (1) is provided with a water outlet port (102) communicating with the water outlet space (111) and a water inlet port (101) communicating with the first gap, and the water outlet port (102) and the water inlet port (101) are located on the same side of the housing (1).

2. The water purification assembly according to claim 1, characterized in that: The capacitive deionization filter element (20) comprises: a water outlet pipe (21) and an electrode assembly (22); The electrode assembly (22) is wound around the peripheral wall of the water outlet pipe (21); the water outlet pipe (21) has a first water outlet channel (211), a water hole (212) and a second water outlet (213) communicating with the first water outlet channel (211); the water hole (212) is provided on the peripheral wall of the water outlet pipe (21); wherein the second water outlet (213) is provided at the first end of the water outlet pipe (21), and the water hole (212) is provided on the peripheral wall near the second end of the water outlet pipe (21).

3. The water purification assembly according to claim 2, characterized in that: A guide groove (214) is provided on the peripheral wall of the water outlet pipe (21), and fluid communication is formed between the guide groove (214) and the water hole (212).

4. The water purification assembly according to claim 2, characterized in that: The electrode assembly (22) comprises: an insulating sheet (221) and at least two layers of electrode sheets (222), the insulating sheet (221) and the electrode sheets (222) being stacked, and the insulating sheet (221) being sandwiched between two adjacent layers of the electrode sheets (222); The electrode sheet (222) comprises a current collector layer (2221) and an adsorption layer (2222), and the adsorption layer (2222) is provided on both the front and back sides of the current collector layer (2221); two adjacent layers of the electrode sheets (222) are respectively configured as a positive electrode sheet and a negative electrode sheet, the positive electrode sheet is connected to the positive electrode tab (201), and the negative electrode sheet is connected to the negative electrode tab (202), and a water passage (2201) for accommodating the insulating sheet (221) is formed between the positive electrode sheet and the negative electrode sheet; The inner and outer ends of the electrode assembly (22) relative to the water outlet pipe (21) are formed into a water outlet end and a water inlet end, respectively; the water inlet end is connected to the water outlet end through the water passage (2201), and the water outlet end extends toward the peripheral wall of the water outlet pipe (21) and forms a fluid connection with the water hole (212).

5. The water purification assembly according to claim 4, characterized in that: The two adjacent layers of electrode sheets (222) are arranged opposite to each other along the stacking direction, and the insulating sheet (221) and the electrode sheet (222) are arranged in a staggered manner along the stacking direction, so that the electrode sheet (222) is hidden between the two adjacent layers of insulating sheets (221).

6. The water purification assembly according to claim 4, characterized in that: The peripheral wall of the water outlet pipe (21) is provided with a plurality of groups of water holes (212) along the circumferential direction, and each group of water holes (212) is arranged along the axial direction of the water outlet pipe (21); The number of the electrode sheets (222) is greater than two layers, so that the electrode assembly (22) forms a plurality of water passages (2201); the inner end of the electrode assembly (22) forms a plurality of water outlet ends corresponding to the plurality of water passages (2201), and the plurality of water outlet ends are arranged relative to the plurality of groups of water holes (212).

7. The water purification assembly according to claim 4, characterized in that: The current collector layer (2221) includes any one of copper foil, titanium foil and graphite paper, and the adsorption layer (2222) includes an activated carbon layer.

8. The water purification assembly according to claim 4, characterized in that: The thickness of the current collector layer (2221) is 15-50 microns, and the thickness of the adsorption layer (2222) is 25-200 microns.

9. The water purification assembly according to any one of claims 1 to 8, characterized in that: The water purification component further comprises a first end cap (3), the first end cap (3) comprising a side wall (31) and a top wall (32) connected in a bent manner, the side wall (31) being connected to the inner wall of the housing (1), the top wall (32) being sealed to the first end of the capacitor deionizing filter element (20) by means of a filling glue, and the top wall (32), the side wall (31) and the inner wall of the housing (1) forming the accommodating space (112); wherein the top wall (32) is provided with a first through hole (322) for the positive electrode tab (201) to pass through and a second through hole for the negative electrode tab (202) to pass through.

10. The water purification assembly according to claim 9, characterized in that: The first end cap (3) further comprises a first rubber stop wall (33) bent and connected to the top wall (32); the outer side surface of the first rubber stop wall (33) is sealedly connected to the inner wall of the housing (1); and the inner side surface of the first rubber stop wall (33) is connected to the outer side surface of the capacitor deionization filter element (20).

11. The water purification assembly according to claim 10, characterized in that: The water purification component further comprises a fixing seat (6), a positive electrode electrical connector (51) and a negative electrode electrical connector (52); the fixing seat (6) is detachably arranged on the side wall (31); the fixing seat (6) is provided with a first positioning hole (62) corresponding to the positive electrode tab (201) and a second positioning hole corresponding to the negative electrode tab (202); the positive electrode electrical connector (51) is installed in the first positioning hole (62) and is detachably connected to the positive electrode tab (201); the negative electrode electrical connector (52) is installed in the second positioning hole and is detachably connected to the negative electrode tab (202).

12. The water purification assembly according to claim 11, characterized in that: The housing (1) is provided with a first plug hole (103) and a second plug hole (104); the positive electrode electrical connector (51) and the negative electrode electrical connector (52) are located inside the housing (1); at least a portion of the positive electrode electrical connector (51) is exposed outside the first plug hole (103); and at least a portion of the negative electrode electrical connector (52) is exposed outside the second plug hole (104).

13. The water purification assembly according to any one of claims 1 to 8, characterized in that: The water purification component further comprises a second end cover (4), the second end cover (4) comprising a box body (41) and a sealing plate (42), the box body (41) being sandwiched between the second end of the capacitor deionization filter element (20) and the inner wall of the housing (1), the water outlet space (111) being formed between the box body (41) and the inner wall of the housing (1), the box body (41) being provided with a storage space and a first opening and a second opening communicating with the storage space, the post filter element (23) being limited to the storage space. A second gap is left between the top wall (32) of the space and the sealing plate (42), and between the sealing plate (42) and the bottom wall of the storage space. A third gap is left between the post-filter element (23) and the side wall (31) of the storage space. The second gap is connected to the third gap. The first water outlet (2311) is connected to the water outlet space (111) through the first opening. The second water outlet (213) of the capacitor deionizing filter element (20) is connected to the second gap through the second opening.

14. The water purification assembly according to claim 13, characterized in that: The box body (41) comprises a box body and a cover body that are sealed and connected, the box body and the cover body enclose the storage space, the cover body is glued to the second end of the capacitor deionization filter element (20), the cover body is provided with the second opening, and the box body is provided with the first opening.

15. The water purification assembly according to claim 13, characterized in that: An annular partition (121) is provided on the inner wall of the shell (1); an annular flow guide portion (414) is provided on the outer side surface of the box body (41) at the first opening; the annular partition (121) is fitted onto the outer side surface of the annular flow guide portion (414); the annular partition (121) and the annular flow guide portion (414) enclose the water outlet space (111).

16. The water purification assembly according to claim 13, characterized in that: The post-filter element (23) is provided with a second water outlet channel (231), the second water outlet channel (231) is formed with the first water outlet (2311), a first annular support portion (411) is formed inside the box body (41) near the first opening, and the outer side surface of the first annular support portion (411) abuts against the inner wall of the second water outlet channel (231); and / or, A second annular support portion (421) is formed on the side of the sealing plate (42) facing the post-filter element (23), and the outer side surface of the second annular support portion (421) abuts against the inner wall of the second water outlet channel (231).

17. A water purification device, characterized in that: include: A body and a water purification component according to any one of claims 1 to 16; The machine body has an installation cavity, and the water purification component is detachably arranged in the installation cavity.

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