Water purification assembly and water purification equipment

Abstract

The utility model relates to the technical field of water purification, and provides a water purification assembly and water purification equipment, the water purification assembly comprises a shell and a capacitive deionization filter element; the first end of the capacitive deionization filter element and the inner wall of the shell form an accommodating space, the second end of the capacitive deionization filter element and the inner wall of the shell form a water outlet space, and the water outlet space and the accommodating space are oppositely arranged; a first gap is reserved between the capacitive deionization filter element and the shell, and the capacitive deionization filter element is provided with a water inlet end in the radial direction of the capacitive deionization filter element and a water outlet in the axial direction of the capacitive deionization filter element; the shell is provided with a water outlet port communicated with the water outlet space and a water inlet port communicated with the first gap, the water outlet port and the water inlet port are located on the same side of the shell, the water outlet is communicated with the water outlet space, and a positive pole lug and a negative pole lug of the capacitive deionization filter element both extend into the containing space; the positive pole lug and the negative pole lug are arranged at intervals and are suitable for being connected with an external power supply. Therefore, water and electricity isolation of the water purification assembly is realized, and the reliability of the water purification assembly is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a water purification component and a water purification device. 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 applying a low voltage to the electrodes, cations, anions or charged particles in the solution migrate to the two electrodes respectively under the action of the electric field force and the concentration gradient, and adsorb on the electrode surface to form a double-layer capacitance, so as to achieve the purpose of desalination or purification. The capacitive deionization technology can achieve different water outlet qualities at different voltages, while retaining the ions beneficial to the human body and removing heavy metal ions. In the related technology, there are great potential safety hazards in the waterway part and the circuit part of the water purifier, and safety accidents such as electric leakage may occur during use. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the related technology. For this purpose, the utility model provides a water purification component, which realizes the electrical isolation of the water purification component based on the mutually isolated water outlet space and accommodation space, and ensures the reliability of the operation of the water purification component.

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

[0005] The water purification component according to the first aspect embodiment of the utility model includes:

[0006] A housing;

[0007] A capacitive deionization filter element is arranged in the housing. A first accommodation space is formed between the first end of the capacitive deionization filter element and the inner wall of the housing, and a water outlet space is formed between the second end of the capacitive deionization filter element and the inner wall of the housing. The water outlet space and the accommodation space are arranged oppositely; a first gap is left between the outer side surface of the capacitive deionization filter element and the inner wall of the housing. The capacitive deionization filter element has a water inlet end in its radial direction and a water outlet in its axial direction.

[0008] Wherein, the housing is provided with a water outlet port communicated with the water outlet space and a water inlet port communicated with the first gap. The water outlet port and the water inlet port are located on the same side of the housing. The water outlet is communicated with the water outlet space. The positive electrode lug and the negative electrode lug of the capacitive deionization filter element both extend into the accommodation space. The positive electrode lug and the negative electrode lug are arranged at intervals and are suitable for being connected with an external power supply.

[0009] According to an embodiment of the present utility model, the water purification assembly further includes a first end cap, the first end cap includes a side wall and a top wall connected to each other, the side wall is connected to the inner wall of the housing, and a filling adhesive is used for sealing connection between the top wall and the first end of the capacitive deionization filter element. A receiving space is formed by enclosing between the top wall, the side wall and the inner wall of the housing; 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.

[0010] According to an embodiment of the present utility model, the first end cap further includes a first glue blocking wall bent and connected to the top wall, an outer side surface of the first glue blocking wall is hermetically connected to the inner wall of the housing, and an inner side surface of the first glue blocking wall is connected to an outer side surface of the capacitive deionization filter element.

[0011] According to an embodiment of the present utility model, the first end cap further includes a glue blocking plate, the glue blocking plate is disposed on a side of the top wall facing the first end of the capacitive deionization filter element and is disposed close to the outer side surface of the capacitive deionization filter element.

[0012] According to an embodiment of the present utility model, a projected area of the first through hole on the first end of the capacitive deionization filter element is greater than a projected area of the positive electrode tab on the first end of the capacitive deionization filter element; and / or,

[0013] A projected area of the second through hole on the first end of the capacitive deionization filter element is greater than a projected area of the negative electrode tab on the first end of the capacitive deionization filter element.

[0014] According to an embodiment of the present utility model, a partition is provided on the inner wall of the housing, and a water outlet space is formed by enclosing between the partition and the second end of the capacitive deionization filter element.

[0015] According to an embodiment of the present utility model, the water purification assembly further includes a second end cap, the second end cap includes a bottom wall, and the bottom wall is limited between the second end of the capacitive deionization filter element and a side of the partition away from the inner wall of the housing; wherein, the bottom wall is provided with a through hole, and the water outlet is communicated with the water outlet space through the through hole.

[0016] According to an embodiment of the present utility model, the second end cap further includes a second glue blocking wall bent and connected to the bottom wall, an inner side surface of the second glue blocking wall is connected to an outer side surface of the capacitive deionization filter element, and a second gap is left between an outer side surface of the second glue blocking wall and the inner wall of the housing.

[0017] According to an embodiment of the present utility model, the capacitive deionization filter element includes:

[0018] The electrode assembly includes: an insulating sheet and at least two layers of electrode sheets. The insulating sheet and the electrode sheets are arranged in a stacked manner, and the insulating sheet is clamped between two adjacent layers of the electrode sheets.

[0019] The electrode sheet includes a current collector layer and an adsorption layer, and the adsorption layers are provided on both the front and back sides of the current collector layer; two adjacent layers of the electrode sheets are respectively configured as a positive electrode sheet and a negative electrode sheet. The current collector layer of the positive electrode sheet is connected with a positive electrode tab, and the current collector layer of the negative electrode sheet is connected with a negative electrode tab. A water passing channel for accommodating the insulating sheet is formed between the positive electrode sheet and the negative electrode sheet.

[0020] The water outlet pipe has a water outlet channel and a first water passing hole communicated with the water outlet channel. The water outlet is formed in the water outlet channel, and the first water passing hole is arranged on the peripheral wall of the water outlet pipe; the electrode assembly is wound around the peripheral wall of the water outlet pipe, and the inner and outer ends of the electrode assembly corresponding to the water outlet pipe are respectively formed as a water outlet end and a water inlet end.

[0021] Wherein, the water inlet end is communicated with the water outlet end through the water passing channel. The water outlet end extends towards the peripheral wall of the water outlet pipe and forms a fluid communication with the first water passing hole.

[0022] According to an embodiment of the present invention, the water outlet pipe extends into the water outlet space, and the outer side surface of the water outlet pipe is sealingly connected with the inner wall of the water outlet space.

[0023] According to an embodiment of the present invention, two adjacent layers of the electrode sheets are arranged oppositely along the stacking direction, and the insulating sheet and the electrode sheets are arranged in a staggered manner along the stacking direction, so that the electrode sheets are hidden between two adjacent layers of the insulating sheets.

[0024] The water purification device according to the second aspect embodiment of the present invention includes: a machine body and the water purification assembly as described above; the machine body has an installation cavity, and the water purification assembly is detachably arranged in the installation cavity.

[0025] One or more of the above technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0026] Since the positive electrode tab and the negative electrode tab of the capacitive deionization filter element are arranged in the accommodation space, and the water outlet of the capacitive deionization filter element is arranged in the water outlet space, this design realizes the electrical and water isolation of the water purification assembly based on the mutually isolated water outlet space and accommodation space, and ensures the reliability of the water purification work of the water purification assembly.

[0027] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is one of the structural schematic diagrams of the water purification component provided by the embodiment of the present utility model;

[0030] Figure 2 It is the second structural schematic diagram of the water purification component provided by the embodiment of the present utility model;

[0031] Figure 3 It is the third structural schematic diagram of the water purification component provided by the embodiment of the present utility model;

[0032] Figure 4 It is the structural schematic diagram of the capacitive deionization filter element provided by the embodiment of the present utility model;

[0033] Figure 5 It is the first structural schematic diagram of the assembly of the water outlet pipe and the diversion pipe provided by the embodiment of the present utility model;

[0034] Figure 6 It is the second structural schematic diagram of the assembly of the water outlet pipe and the diversion pipe provided by the embodiment of the present utility model;

[0035] Figure 7 It is provided by the embodiment of the present utility model Figure 6 The partial enlarged schematic diagram of part K therein;

[0036] Figure 8 It is the structural schematic diagram of winding the electrode assembly on the water outlet pipe provided by the embodiment of the present utility model;

[0037] Figure 9 It is the structural schematic diagram of the first end cover provided by the embodiment of the present utility model;

[0038] Figure 10 It is the structural schematic diagram of the second end cover provided by the embodiment of the present utility model;

[0039] Figure 11 It is the cross-sectional schematic diagram of the laminated arrangement of the electrode assemblies provided by the embodiment of the present utility model;

[0040] Figure 12 It is the cross-sectional schematic diagram of the electrode plate provided by the embodiment of the present utility model;

[0041] Figure 13 It is the structural schematic diagram of the fixing seat provided by the embodiment of the present utility model;

[0042] Figure 14 It is an assembly schematic diagram of the first end cap, the second end cap, and the capacitive deionization filter element provided by the embodiment of the present utility model.

[0043] Reference numerals:

[0044] 1. Housing; 101. Water inlet port; 102. Water outlet port; 103. First insertion hole; 104. Second insertion hole; 111. Water outlet space; 112. Accommodation space; 121. Partition board;

[0045] 2. Capacitive deionization filter element; 21. Water outlet pipe; 22. Electrode assembly; 23. Diversion pipe; 211. First water passing hole; 212. Water outlet; 201. Water passing gap; 202. Second water passing hole; 230. Plugging member; 2301. Plugging board; 2302. Protrusion; 221. Insulating sheet; 222. Electrode sheet; 2201. Water passing channel; 2221. Current collector layer; 2222. Adsorption layer; 201. Positive electrode tab; 202. Negative electrode tab;

[0046] 3. First end cap; 31. Side wall; 311. Snap; 32. Top wall; 321. Glue baffle; 322. First through hole; 33. First glue blocking wall;

[0047] 4. Second end cap; 41. Bottom wall; 42. Second glue blocking wall;

[0048] 5. Power connection assembly; 51. Positive electrode electrical connector; 52. Negative electrode electrical connector;

[0049] 6. Fixed seat; 61. Card slot; 62. First positioning hole. Specific embodiments

[0050] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0051] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the embodiments of the present utility model and for simplification, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, in the description of the present utility model, unless otherwise specified, the meanings of "a plurality", "a plurality of roots", "a plurality of groups" are two or more.

[0052] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0053] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0054] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0055] The following will be combined with Figures 1 to 14 , and the water purification component and water purification equipment provided by the embodiments of the present utility model will be described in detail through specific embodiments and their application scenarios.

[0056] In the first aspect, in some embodiments, as Figure 1 , Figure 2 and Figure 3 shown, the water purification component includes: a housing 1 and a capacitive deionization filter element 2; the housing 1 has a water inlet port 101 and a water outlet port 102, and the water inlet port 101 and the water outlet port 102 are located on the same side of the housing 1;

[0057] The capacitive deionization filter element 2 has a water inlet end in its radial direction and a water outlet 212 in its axial direction. The capacitive deionization filter element 2 is arranged in the housing 1. A receiving space 112 is formed between the first end of the capacitive deionization filter element 2 and the inner wall of the housing 1, and a water outlet space 111 is formed between the second end of the capacitive deionization filter element 2 and the inner wall of the housing 1. The water outlet space 111 and the receiving space 112 are oppositely arranged; a first gap is left between the outer side surface of the capacitive deionization filter element 2 and the inner wall of the housing 1;

[0058] Among them, the water inlet port 101 is communicated with the first gap, and the water outlet 212, the water outlet space 111 and the water outlet port 102 are communicated in sequence; the positive electrode lug 201 and the negative electrode lug 202 of the capacitive deionization filter element 2 both extend into the receiving space 112, and the positive electrode lug 201 and the negative electrode lug 202 are arranged at intervals and are adapted to be connected to an external power supply.

[0059] It can be understood that the housing 1 is columnar, a receiving cavity is provided in the housing 1, and the capacitive deionization filter element 2 is installed in the receiving cavity and is configured to be coaxially arranged with the housing 1.

[0060] A receiving space 112 is formed between the first end of the capacitive deionization filter element 2 and the inner wall of the first end of the housing 1, and a water outlet space 111 is formed between the second end of the capacitive deionization filter element 2 and the inner wall of the second end of the housing 1; the water inlet port 101 and the water outlet port 102 are respectively located at the second end of the housing 1 and are communicated with the receiving cavity.

[0061] Since the positive electrode lug 201 and the negative electrode lug 202 of the capacitive deionization filter element 2 are arranged in the receiving space 112, and the water outlet 212 of the capacitive deionization filter element 2 is arranged in the water outlet space 111, this design realizes the electrical and water isolation of the water purification component based on the mutually isolated water outlet space 111 and receiving space 112, ensuring the reliability of the water purification work of the water purification component.

[0062] Such as Figure 3As shown, a power connection assembly 5 may be disposed in the accommodation space 112, and the power connection assembly 5 includes a positive electrode electrical connector 51 and a negative electrode electrical connector 52, at least part of the positive electrode electrical connector 51 and at least part of the negative electrode electrical connector 52 are exposed outside the housing 1, the positive electrode electrical connector 51 is electrically connected to the positive electrode tab 201, and the negative electrode electrical connector 52 is electrically connected to the negative electrode tab 202. This design facilitates the external power supply to apply voltage to the positive electrode sheet and the negative electrode sheet through the power connection assembly 5.

[0063] In some embodiments, Figure 2 , Figure 3 and Figure 9 As shown, the water purification component also includes: a first end cover 3; the first end cover 3 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 connected to the first end of the capacitor deionization filter element 2, and the top wall 32, the side wall 31 and the inner wall of the shell 1 enclose a accommodating space 112; the top wall 32 is provided with a first through hole 322 for the positive electrode ear 201 to pass through and a second through hole for the negative electrode ear 202 to pass through.

[0064] It can be understood that the top wall 32 is disc-shaped, and the side wall 31 is extended circumferentially relative to the central axis of the capacitor deionization filter element 2; the side wall 31 is arranged on the side of the top wall 32 away from the capacitor deionization filter element 2, 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 containing space 112.

[0065] In some embodiments, Figure 2 , Figure 3 and Figure 9 As shown, the first end cover 3 also includes: a first rubber retaining wall 33 bent and connected to the top wall 32, the outer side surface of the first rubber retaining 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 2 are sealed by filling glue, and the inner side surface of the first rubber retaining wall 33 is in contact with the outer side surface of the capacitor deionizing filter element 2.

[0066] It is understandable that the filling glue forms a sealing glue layer at the first end of the capacitor deionizing filter element 2 , and the top wall 32 is in contact with the surface of the sealing glue layer to achieve sealing of the first end of the capacitor deionizing filter element 2 .

[0067] The first glue blocking 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 blocking wall 33 is adapted to the diameter of the capacitor deionization filter element 2. The first glue blocking wall 33 is used to prevent the filling glue from overflowing to the peripheral wall of the capacitor deionization filter element 2.

[0068] On one side of the top wall 32 facing the capacitive deionization filter element 2, a first support rib can be provided. The first support rib can be configured to extend radially along the capacitive deionization filter element 2. The first support rib is used to ensure the thickness of the filling glue filled at the first end of the capacitive deionization filter element 2 and is beneficial to ensuring the molding quality of the filling glue.

[0069] Wherein, by sealingly connecting the outer side surface of the first glue-blocking wall 33 to the inner wall of the housing 1, water can be prevented from entering the accommodation space 112 formed by enclosing between the top wall 32, the side wall 31 and the inner wall of the housing 1.

[0070] In some embodiments, as Figure 2 shown, in order to ensure the molding quality of the filling glue, the first end cap 3 further includes a glue-blocking plate 321. The glue-blocking plate 321 is arranged on one side of the top wall 32 facing the first end of the capacitive deionization filter element 2 and is arranged close to the outer side surface of the capacitive deionization filter element 2.

[0071] That is to say, the annular glue-blocking plate 321 is arranged inside the top wall 32. The annular glue-blocking plate 321 is coaxially arranged with the first glue-blocking wall 33, and the glue-blocking plate 321 is spaced from the first glue-blocking wall 33. The glue-blocking plate 321 is used to limit the flow of the filling glue towards the area where the through hole is located.

[0072] In some embodiments, as Figure 9 shown, the projected area of the first through hole 322 on the first end of the capacitive deionization filter element 2 is larger than the projected area of the positive electrode tab 201 on the first end of the capacitive deionization filter element 2, and the projected area of the second through hole on the first end of the capacitive deionization filter element 2 is larger than the projected area of the negative electrode tab 202 on the first end of the capacitive deionization filter element 2.

[0073] 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 capacitive deionization filter element 2. That is to say, after sealing the area between the glue-blocking plate 321 and the first glue-blocking wall 33 at the first end of the capacitive deionization filter element 2, the remaining area (the area enclosed by the glue-blocking plate 321) at the first end of the capacitive deionization filter element 2 is sealed through the first through hole 322 and the second through hole.

[0074] In some embodiments, as Figure 3 shown, a partition plate 121 is provided on the inner wall of the housing 1. The partition plate 121 and the second end of the capacitive deionization filter element 2 enclose an outlet water space 111.

[0075] It can be understood that the partition plate 121 extends circumferentially relative to the water outlet port 102, and the peripheral wall of the water outlet 212 of the capacitive deionization filter element 2 is sealingly connected to the inner side surface of the partition plate 121, so that the partition plate 121 and the second end of the capacitive deionization filter element 2 enclose an outlet water space 111.

[0076] In some embodiments, such as Figure 2 , Figure 3 and Figure 10 shown, the water purification assembly further includes: a second end cap 4, the second end cap 4 includes a bottom wall 41 and a second rubber blocking wall 42 which are bent and connected. The bottom wall 41 is limited between the second end of the capacitive deionization filter element 2 and the side of the partition plate 121 away from the inner wall of the housing 1. The bottom wall 41 is provided with a through hole, and the water outlet 212 passes through the through hole and communicates with the water outlet space 111;

[0077] The bottom wall 41 is hermetically connected to the second end of the capacitive deionization filter element 2 by filling glue. The second rubber blocking wall 42 is attached to the peripheral wall of the capacitive deionization filter element 2. A second gap is left between the outer side surface of the second rubber blocking wall 42 and the inner wall of the housing 1. The water inlet port 101 communicates with the first gap through the second gap.

[0078] It can be understood that the filling glue forms a sealing glue layer at the second end of the capacitive deionization filter element 2. The second rubber blocking wall 42 is arranged on the outer edge of the bottom wall 41 and extends circumferentially relative to the water outlet 212. The inner diameter of the second rubber blocking wall 42 is adapted to the diameter of the capacitive deionization filter element 2.

[0079] A plurality of ribs can be arranged on the outer side surface of the second rubber blocking wall 42. The plurality of ribs are arranged circumferentially along the second rubber blocking wall 42 and abut against the inner wall of the housing 1 so as to form a second gap between the outer side surface of the second rubber blocking wall 42 and the inner wall of the housing 1. Of course, a plurality of ribs can also be arranged on the inner wall of the housing 1. The plurality of ribs are arranged circumferentially relative to the axis where the water outlet 212 is located and abut against the outer side surface of the second rubber blocking wall 42. This design can also form a second gap between the outer side surface of the second rubber blocking wall 42 and the inner wall of the housing 1.

[0080] Furthermore, in order to ensure the sealing effect of the second end of the capacitive deionization filter element 2, a second support rib is provided on the side surface of the bottom wall 41 facing the capacitive deionization filter element 2. The second support rib can be configured to extend radially along the capacitive deionization filter element 2. The second support rib is used to ensure the filling thickness of the filling glue at the second end of the capacitive deionization filter element 2 and is beneficial to ensuring the molding quality of the filling glue.

[0081] In an alternative embodiment, such as Figure 2As shown in the figure, the housing 1 is provided with a first insertion hole 103 and a second insertion hole 104 communicating with the accommodation space 112. The first insertion hole 103 and the second insertion 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. Among them, the first insertion hole 103 corresponds to the positive electrode tab 201, and the second insertion hole 104 corresponds to the negative electrode tab 202. Exemplarily, the positive electrode tab 201 can be exposed outside the first through hole 322, and the negative electrode tab 202 can be exposed outside the second through hole. In this way, the external connection of the positive electrode tab 201 and the negative electrode tab 202 to the power supply can be realized.

[0082] In an alternative embodiment, as Figure 13 shown, the water purification assembly further includes a fixing seat 6 and a power connection assembly 5. The power connection assembly 5 includes a positive electrode electrical connector 51 and a negative electrode electrical connector 52. The fixing seat 6 is coaxially 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 inserted through the first positioning hole 62 and is detachably connected to the positive electrode tab 201. The negative electrode electrical connector 52 is inserted through the second positioning hole and is detachably connected to the negative electrode tab 202. In addition, the positive electrode electrical connector 51 is exposed outside the first through hole 322, and the negative electrode electrical connector 52 is exposed outside the second through hole.

[0083] Specifically, the fixing seat 6 is detachably arranged on the side wall 31. For example, the fixing seat 6 is provided with a clamping groove 61, and the inner side surface of the side wall 31 is provided with a clamping buckle 311. The fixing seat 6 and the first end cover 3 are limited and matched in the circumferential direction through the clamping groove 61 and the clamping buckle 311.

[0084] In an alternative embodiment, each of the first positioning hole 62 and the second positioning hole is a stepped hole. The stepped hole is provided with a stepped surface. The outer side surface of each of the positive electrode electrical connector 51 and the negative electrode electrical connector 52 is provided with an abutting surface, and the abutting surface abuts against the stepped surface.

[0085] In addition, each of the positive electrode electrical connector 51 and the negative electrode electrical connector 52 is provided with a slot, and the corresponding tab is inserted into the slot. For example, the bottom of the positive electrode electrical connector 51 is provided with a slot, and the positive electrode tab 201 can be inserted into the slot of the positive electrode electrical connector 51.

[0086] In practical applications, as Figure 9 、 Figure 10 、 Figure 13 and Figure 14As shown in the figure, first, a layer of filling glue is set in the first area at the first end of the capacitive deionization filter element 2. The first area is the area between the first glue-blocking wall 33 and the glue-blocking plate 321. Then, the first end cap 3 is covered on the first end of the capacitive deionization filter element 2. Since the first glue-blocking wall 33 is attached to the peripheral wall of the capacitive deionization filter element 2 and the first glue-blocking wall 33 extends circumferentially relative to the water outlet port 102, the first glue-blocking wall 33 can not only prevent the filling glue from overflowing to the side of the capacitive deionization filter element 2, but also limit the capacitive deionization filter element 2 radially to ensure the coaxiality of the capacitive deionization filter element 2 and the water outlet port 102. Next, a layer of filling glue is set in the second area at the first end of the capacitive deionization filter element 2. The second area is the area enclosed by the glue-blocking plate 321, thereby completing the sealing of the first end of the capacitive deionization filter element 2. Subsequently, the fixing seat 6 is installed on the side wall 31. Under the limiting cooperation of the card slot 61 and the buckle 311, the first positioning hole 62 can correspond to the positive electrode tab 201, and the second positioning hole can correspond to the negative electrode tab 202. Then, the positive electrode electrical connector 51 is installed in the first positioning hole 62 and completes the plug-in cooperation with the positive electrode tab 201, and the negative electrode electrical connector 52 is installed in the second positioning hole and completes the plug-in cooperation with the negative electrode tab 202. That is to say, under the action of the fixing seat 6, the docking coaxiality of the electrical connector and the tab can be ensured, and during the docking process of the electrical connector and the tab, the electrical connector will not move excessively so as not to damage the tab.

[0087] It should be noted that the housing 1 can be set as a first housing and a second housing. After the capacitive deionization filter element is installed in the first housing, the first housing and the second housing are then connected.

[0088] In an alternative embodiment, the capacitive deionization filter element 2 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. Both ends of the electrode assembly 22 along the axial direction of the water outlet pipe 21 are sealed. The outside of the electrode assembly 22 is used to receive the input of raw water, and the inside of the electrode assembly 22 is used to output purified water or wastewater.

[0089] The water outlet pipe has a water outlet channel, water passing holes communicating with the water outlet channel, and a water outlet 212. The water outlet channel is arranged inside the water outlet pipe. The water outlet channel forms a water outlet 212, and the water passing holes are arranged on the peripheral wall of the water outlet pipe.

[0090] Further, as Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, the capacitive deionization filter element 2 of the embodiment of the present utility model includes a water outlet pipe 21, a diversion pipe 23 and an electrode assembly 22. The electrode assembly 22 is wound around the peripheral wall of the water outlet pipe 21. Both ends of the electrode assembly 22 along the axial direction of the water outlet pipe 21 are sealed. The outside of the electrode assembly 22 is used to receive the input of raw water, and the inside of the electrode assembly 22 is used to output purified water or wastewater.

[0091] The peripheral wall of the water outlet pipe 21 is provided with first water passing holes 211. The first end of the water outlet pipe 21 forms a water outlet 212, and the second end of the water outlet pipe 21 is closed. The diversion pipe 23 is arranged inside the water outlet pipe 21 to form a water passing gap 201 between the diversion pipe 23 and the water outlet pipe 21. The peripheral wall of the first end of the diversion pipe 23 is hermetically connected to the inner wall of the water outlet pipe 21, and a second water passing hole 202 is formed between the second end of the diversion pipe 23 and the second end of the water outlet pipe 21.

[0092] Wherein, the first water passing holes 211, the water passing gap 201, the second water passing holes 202, the inner cavity of the diversion pipe 23 and the water outlet 212 are sequentially in fluid communication. The outer diameter of the diversion pipe 23 is smaller than the inner diameter of the water outlet pipe 21 to form a water passing gap 201 between the diversion pipe 23 and the water outlet pipe 21.

[0093] It can be understood that the electrode assembly 22 generally includes a positive electrode sheet and a negative electrode sheet arranged in a stacked manner. The positive electrode sheet and the negative electrode sheet are isolated from each other, and a flow channel for the water body to flow is formed between the positive electrode sheet and the negative electrode sheet. When winding the electrode assembly 22, the inner side surface of one end of the electrode assembly 22 contacts the peripheral wall of the water outlet pipe 21, and then with the water outlet pipe 21 as the central axis, the electrode assembly 22 is wound layer by layer until the electrode assembly 22 is wound into a columnar distribution form.

[0094] Since the electrode assembly 22 is wound around the peripheral wall of the water outlet pipe 21 and both ends of the electrode assembly 22 along the axial direction of the water outlet pipe 21 are sealed, when a positive voltage is applied to the positive electrode sheet and the negative electrode sheet, cations, anions or charged particles in the water body will migrate to the surfaces of the positive electrode sheet and the negative electrode sheet under the action of the electric field force, so that the purified water after desalination treatment is output from the inside of the electrode assembly 22. When a reverse voltage is applied to the positive electrode sheet and the negative electrode sheet, or when the voltage application to the positive electrode sheet and the negative electrode sheet is stopped, the adsorbed anions, cations or charged particles on the surfaces of the positive electrode sheet and the negative electrode sheet will automatically detach, so that the wastewater with a higher concentration is output from the inside of the electrode assembly 22.

[0095] Considering that the peripheral wall of the existing water outlet pipe 21 is usually densely provided with a plurality of water passing holes, the water output from the inner side of the electrode assembly 22 will uniformly pass through each water passing hole and enter the water outlet channel. If air bubbles appear in the electrode assembly 22, the air bubbles may adhere to the surface of the positive electrode plate and / or the negative electrode plate, and the flowing water body will not act on the desorption of the air bubbles. However, in this application, a diversion pipe 23 is arranged inside the water outlet pipe 21, and a second water passing hole 202 is arranged between the second end of the diversion pipe 23 and the second end of the water outlet pipe 21, so that the second water passing hole 202 is arranged away from the water outlet 212. This design can limit the water body output from the inner side of the electrode assembly 22 to gradually converge towards the area where the second water passing hole 202 is located after entering the water passing gap 201 from the first water passing hole 211, and then enter the diversion pipe 23 through the second water passing hole 202, and finally be output from the water outlet 212 under the guidance of the diversion pipe 23. During the flow of the water body, since the second water passing hole 202 is arranged away from the water outlet 212, the flowing water body gradually converges towards the area where the second water passing hole 202 is located, which will gradually squeeze the air bubbles generated in the electrode assembly 22 to the area where the second water passing hole 202 is located, and then be discharged together with the water body under the guidance of the diversion pipe 23, thereby effectively removing the air bubbles appearing in the capacitive deionization filter element 2.

[0096] As can be seen from the above, the water purification component shown in the present utility model can effectively discharge the air bubbles generated in the filter element during the desalination process of the capacitive deionization filter element 2, prevent the capacitive deionization filter element 2 from generating noise during operation, ensure the stability of the internal electric field of the electrode assembly 22, and thus ensure the water purification treatment effect of the capacitive deionization filter element 2.

[0097] It should be noted here that the capacitive deionization filter element 2 further includes a protective sleeve. For example, the protective sleeve is a cylindrical rubber film, and the protective sleeve is sleeved on the peripheral wall of the electrode assembly 22. A plurality of water passing openings are formed on the protective sleeve to ensure that the water body can reach the outside of the electrode assembly 22 through the water passing openings, and then the electrode assembly 22 performs desalination treatment on the received water body.

[0098] In some embodiments, as Figure 6 and Figure 7 shown, a blocking member 230 is arranged inside the water outlet pipe 21, and the blocking member 230 is arranged at a position close to the second end of the water outlet pipe 21; the peripheral wall of the first end of the diversion pipe 23 is hermetically connected to the inner wall of the first end of the water outlet pipe 21, and a second water passing hole 202 is formed between the second end of the diversion pipe 23 and the blocking member 230.

[0099] It can be understood that the axial distance between the blocking member 230 and the second end of the water outlet pipe 21 is less than the axial distance between the blocking member 230 and the first end of the water outlet pipe 21.

[0100] The length of the diversion pipe 23 can be configured to be equal to the axial length between the plugging member 230 and the first end of the water outlet pipe 21. A sealing ring can be used to achieve a sealed connection between the peripheral wall of the first end of the diversion pipe 23 and the inner wall of the first end of the water outlet pipe 21. The second end of the diversion pipe 23 can be configured to abut against the plugging member 230. However, a gap is reserved between the second end of the diversion pipe 23 and the plugging member 230 to form the second water passing hole 202.

[0101] Further, as Figure 7 shown, the plugging member 230 includes: a plugging plate 2301 and a plurality of protrusions 2302; the plugging plate 2301 is connected to the inner wall of the water outlet pipe 21. For example, the periphery of the plugging plate 2301 is connected to the inner wall of the water outlet pipe 21; the plurality of protrusions 2302 are arranged on the side of the plugging plate 2301 facing the water outlet 212, and the plurality of protrusions 2302 are arranged at intervals in the circumferential direction. The second end of the diversion pipe 23 abuts against at least part of the plurality of protrusions 2302, and the second water passing hole 202 is formed between two adjacent protrusions 2302.

[0102] It can be understood that since the plurality of protrusions 2302 are arranged at intervals in the circumferential direction, there are a plurality of second water passing holes 202. The plurality of second water passing holes 202 are defined to be arranged in the circumferential direction, and each of the second water passing holes 202 can achieve fluid communication between the water passing gap 201 and the inner cavity of the diversion pipe 23.

[0103] In some embodiments, in order to ensure the exhaust effect of the capacitive deionization filter element 2, the ratio of the axial distance between the plugging member 230 and the second end of the water outlet pipe 21 to the length of the water outlet pipe 21 is not greater than 15%.

[0104] It can be understood that since the second water passing hole 202 is formed between the second end of the diversion pipe 23 and the plugging member 230, the ratio of the axial length between the second water passing hole 202 and the water outlet 212 to the length of the water outlet pipe 21 is not greater than 15%.

[0105] Optionally, the length of the capacitive deionization filter element 2 is approximately 333 - 350 mm. The axial distance between the plugging member 230 and the second end of the water outlet pipe 21 can be set to be less than 50 mm, so that the second water passing hole 202 is as far away from the water outlet 212 of the capacitive deionization filter element 2 as possible, thereby ensuring the exhaust effect.

[0106] In some embodiments, there are a plurality of second water passing holes 202, and the sum of the water passing areas of the plurality of second water passing holes 202 is not less than 20 mm². For example, the sum of the water passing areas of the plurality of second water passing holes 202 is 20 mm², 25 mm², 35 mm², 50 mm², etc. This design avoids a large flow resistance when the water body passes through the second water passing hole 202 and prevents the second water passing hole 202 from restricting the flow of the water body.

[0107] In some embodiments, such as Figure 8 , Figure 10 and Figure 12 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 arranged in a stacked manner, and the insulating sheet 221 is sandwiched between two adjacent layers of electrode sheets 222;

[0108] The electrode sheet 222 includes a current collector layer 2221 and an adsorption layer 2222. The adsorption layers 2222 are provided on both the front and back sides of the current collector layer 2221; two adjacent electrode sheets 222 are respectively configured as a positive electrode sheet and a negative electrode sheet, and a water passage 2201 for accommodating the insulating sheet 221 is formed between the positive electrode sheet and the negative electrode sheet;

[0109] The inner and outer ends of the electrode assembly 22 correspond to the inner and outer ends of the water outlet pipe 21 to form a water outlet end and a water inlet end; the water inlet end is communicated with the water outlet end through the water passage 2201, and the water outlet end extends towards the peripheral wall of the water outlet pipe 21 and forms a fluid communication with the first water hole 211.

[0110] It can be understood that the insulating sheet 221 and the electrode sheets 222 are stacked in an alternating arrangement manner to realize that the insulating sheet 221 is sandwiched between two adjacent layers of electrode sheets 222. Since two adjacent electrode sheets 222 are respectively configured as a positive electrode sheet and a negative electrode sheet, when the number of electrode sheets 222 is greater than two layers, in order to meet the water filtration requirement of the electrode assembly 22 for raw water, when designing the power supply for the electrode assembly 22, the positive electrode sheet and the negative electrode sheet can be arranged alternately in the stacking direction in sequence, the insulating sheet 221 is sandwiched between the positive electrode sheet and the negative electrode sheet, and 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 layers, the insulating sheet 221 can be directly sandwiched between the positive electrode sheet and the negative electrode sheet.

[0111] 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 realize the adsorption of ions in the raw water.

[0112] 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 being short-circuited, but also ensuring that a water passage 2201 is formed between the positive electrode sheet and the negative electrode sheet.

[0113] In practical applications, the operation of the capacitive deionization filter element 2 includes an adsorption purification process and a desorption regeneration process. When adjacent two layers of electrode plates 222 are electrically connected to the positive and negative electrodes of the power supply and the power supply is started to supply power, the cations and anions in the raw water are attracted to the electrode plates 222 with opposite charges and adsorbed by the adsorption layer 2222 on the electrode plates 222. This operation process of the capacitive deionization filter element 2 is the adsorption purification process.

[0114] Correspondingly, when the power supply is stopped, or when a reverse voltage is applied to adjacent two layers of electrode plates 222, the ions adsorbed by the adsorption layer 2222 are detached into the water body of the water passage 2201. At this time, the water passage 2201 will output concentrated water with a higher ion concentration.

[0115] As can be seen from the above, for the capacitive deionization filter element 2 shown in this embodiment, by arranging the adsorption layers 2222 on the front and back sides of the current collector layer 2221, an integrated design of the electrode plates 222 is realized. Only by stacking the electrode plates 222 and the insulating sheets 221 in an alternating arrangement manner can the electrode assembly 22 be formed; this stacked arrangement design of the electrode assembly 22 simplifies the arrangement structure of the electrode assembly 22, is convenient for processing and production, and is beneficial to reducing the production cost.

[0116] Meanwhile, in practical applications, as long as adjacent two layers of electrode plates 222 are electrically connected to the positive and negative electrodes of the power supply, the ions in the raw water passing through the water passage 2201 can be adsorbed, so as to achieve the purpose of purifying the raw water; since the adsorption layers 2222 are arranged on both sides of the current collector layer 2221 of each electrode plate 222, both sides of each electrode plate 222 can adsorb ions, thereby ensuring the purification effect of the raw water to a certain extent. The capacitive deionization filter element 2 can effectively remove heavy metal ions in water and retain the beneficial ions required by the human body, meeting the needs of household water purification.

[0117] In some embodiments, in order to ensure the purification effect of the raw water, adjacent two layers of electrode plates 222 are arranged oppositely along the stacking direction to ensure as much as possible the coverage range of the electric field between adjacent two layers of electrode plates 222, and then based on the electric field between adjacent two layers of electrode plates 222, the anions, cations and other charged particles in the raw water are removed.

[0118] Furthermore, by arranging the insulating sheets 221 and the electrode plates 222 to be offset along the stacking direction, the electrode plates 222 are hidden between adjacent two layers of insulating sheets 221. This design not only ensures the electrical isolation between adjacent two layers of electrode plates 222, but also facilitates setting the water outlet end of the electrode assembly 22 at a position opposite to the first water passage hole 211 on the peripheral wall of the water outlet pipe 21 to ensure the fluid communication between the water passage 2201 in the electrode assembly 22 and the water passage gap 201 inside the water outlet pipe 21.

[0119] Among them, as Figure 11 shown, the stacking direction is along the thickness direction of the insulating sheet 221 or the electrode sheet 222.

[0120] In some embodiments, as Figure 6 and Figure 8 shown, the peripheral wall of the water outlet pipe 21 is provided with multiple groups of first water passing holes 211 along the circumferential direction, and each group of first water passing holes 211 is arranged along the axial direction of the water outlet pipe 21;

[0121] The number of the electrode sheets 222 is greater than two layers, so that the electrode assembly 22 forms multiple water passing channels 2201; the inner ends of the electrode assembly 22 form multiple water outlet ends corresponding to the multiple water passing channels 2201, and the multiple water outlet ends are arranged opposite to the multiple groups of first water passing holes 211.

[0122] It can be understood that by setting the number of the electrode sheets 222 to be greater than two layers, based on the multiple water passing channels 2201 formed by the electrode assembly 22, the raw water flowing through multiple paths in the capacitive deionization filter element 2 can be purified simultaneously, improving the purification efficiency of the raw water.

[0123] At the same time, by setting the multiple water outlet ends to be arranged opposite to the multiple groups of first water passing holes 211, the smoothness of the water path between each water passing channel 2201 and the water passing gap 201 inside the water outlet pipe 21 can be ensured, which is beneficial to ensuring the purified water outlet flow rate of the capacitive deionization filter element 2.

[0124] In practical applications, on the premise of ensuring electrical isolation between adjacent two layers of electrode sheets 222, along the extending direction of the electrode sheets 222, the insulating sheets 221 and the ends of the electrode sheets 222 at one end of the electrode assembly 22 close to the water outlet pipe 21 are arranged in a staggered manner in sequence and are arranged along the circumferential direction of the water outlet pipe 21.

[0125] In some embodiments, as Figure 3 、 Figure 4 and Figure 8 shown, in order to facilitate the connection of adjacent two electrode sheets 222 to the positive and negative electrodes of the power supply, the electrode assembly 22 further 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.

[0126] Specifically, one side edge of the current collector layer 2221 of each positive electrode sheet is provided with a first extension part, and one side edge of the current collector layer 2221 of each negative electrode sheet is provided with a second extension part; when the electrode assembly 22 is wound around the peripheral wall of the water outlet pipe 21, the first extension parts of the respective positive electrode sheets are stacked to form the positive electrode tab 201, and the second extension parts of the respective negative electrode sheets are stacked to form the negative electrode tab 202.

[0127] 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 or negative electrode of a power source.

[0128] The adsorption layer 2222 is attached to the surface of the current collector layer 2221. The adsorption layer 2222 includes an activated carbon layer, and the activated carbon layer has excellent adsorption performance and can adsorb ions in raw water.

[0129] In some embodiments, since the thickness of the current collector layer 2221 of the electrode sheet 222 determines the support 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 prone to damage, and if the current collector layer 2221 is too thick, the cost of the electrode sheet 222 is too high. Therefore, 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.

[0130] At the same time, since the thickness of the adsorption layer 2222 of the electrode sheet 222 determines the adsorption capacity and adsorption rate, however, if the adsorption layer 2222 is too thick, the adsorption layer 2222 will crack during winding. Therefore, 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.

[0131] In some embodiments, the insulating sheet 221 can be configured as a porous structure. For example, the insulating sheet 221 includes insulating fabric or insulating grid. The insulating fabric can be woven fabric or melt-blown fabric.

[0132] Thus, although the insulating sheet 221 is disposed in the water passage 2201, however, since the insulating sheet 221 is a porous structure, the insulating sheet 221 does not affect the migration of ions between two adjacent electrode sheets 222, and thus does not affect the adsorption of ions in the water body by the adsorption layer 2222 of the electrode sheet 222. The insulating sheet 221 ensures the uniform flow of water in the water passage 2201 and can, to a certain extent, ensure the adsorption effect of the adsorption layer 2222 on ions.

[0133] 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, resulting in a greater resistance between two adjacent electrode sheets 222 and poorer 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 millimeters; 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.

[0134] In an alternative embodiment, as Figure 3 shown, the end of the water outlet pipe 21 provided with the water outlet 212 extends into the water outlet space 111, and the outer side surface of the water outlet pipe 21 is sealingly connected to the inner wall of the water outlet space 111.

[0135] In other words, the end of the water outlet pipe 21 provided with the water outlet 212 extends into the partition plate 121, and the outer side surface of the water outlet pipe 21 is sealingly connected to the inner side surface of the partition plate 121. For example, the sealing connection is achieved through a sealing ring.

[0136] In a second aspect, an embodiment of the present utility model further provides a water purification device, including: a machine body and the water purification component as described above; the machine body has an installation cavity, and the water purification component is detachably arranged in the installation cavity.

[0137] Specifically, the water purification device can be an instant hot water dispenser, and the machine body can be provided with an installation port communicating with the installation cavity, and the capacitive deionization filter element 2 can be inserted into the installation cavity through the installation port.

[0138] Since the water purification device includes the water purification component, and the specific structure of the water purification component refers to the above embodiments, the water purification device of this embodiment includes all the technical solutions of the above embodiments. Therefore, it has at least all the beneficial effects obtained by all the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0139] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A water purification component, characterized in that, Comprising: A housing (1); A capacitive deionization filter element (2), disposed within the housing (1). A first end of the capacitive deionization filter element (2) and the inner wall of the housing (1) form a receiving space (112), and a second end of the capacitive deionization filter element (2) and the inner wall of the housing (1) form a water outlet space (111). The water outlet space (111) and the receiving space (112) are disposed opposite to each other. A first gap is left between the outer side surface of the capacitive deionization filter element (2) and the inner wall of the housing (1). The capacitive deionization filter element (2) has a water inlet end in its radial direction and a water outlet (212) in its axial direction; Wherein, 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. The water outlet port (102) and the water inlet port (101) are located on the same side of the housing (1). The water outlet (212) communicates with the water outlet space (111). The positive electrode tab (201) and the negative electrode tab (202) of the capacitive deionization filter element (2) both extend into the receiving space (112). The positive electrode tab (201) and the negative electrode tab (202) are spaced apart and adapted to be connected to an external power source.

2. The water purification component according to claim 1, characterized in that, The water purification assembly further includes a first end cap (3). The first end cap (3) 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 housing (1), and the top wall (32) and the first end of the capacitive deionization filter element (2) are hermetically connected by a filling adhesive. The top wall (32), the side wall (31), and the inner wall of the housing (1) enclose to form the receiving 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.

3. The water purification component according to claim 2, characterized in that, The first end cap (3) further includes a first glue-blocking wall (33) bent and connected to the top wall (32). The outer side surface of the first glue-blocking wall (33) is hermetically connected to the inner wall of the housing (1), and the inner side surface of the first glue-blocking wall (33) is connected to the outer side surface of the capacitive deionization filter element (2).

4. The water purification component according to claim 2, wherein The first end cap (3) further includes a glue-blocking plate (321). The glue-blocking plate (321) is disposed on a side of the top wall (32) facing the first end of the capacitive deionization filter element (2) and is disposed close to the outer side surface of the capacitive deionization filter element (2).

5. The water purification component according to claim 2, wherein The projected area of the first through hole (322) on the first end of the capacitive deionization filter element (2) is greater than the projected area of the positive electrode tab (201) on the first end of the capacitive deionization filter element (2); and / or, The projected area of the second through hole on the first end of the capacitive deionization filter element (2) is greater than the projected area of the negative electrode tab (202) on the first end of the capacitive deionization filter element (2).

6. The water purification component according to claim 1, wherein The inner wall of the housing (1) is provided with a partition (121), and an outlet space (111) is formed by enclosing the partition (121) and the second end of the capacitive deionization filter element (2).

7. The water purification component according to claim 6, characterized in that The water purification assembly further includes a second end cover (4), the second end cover (4) includes a bottom wall (41), and the bottom wall (41) is limited between the second end of the capacitive deionization filter element (2) and the side of the partition (121) away from the inner wall of the housing (1); wherein, the bottom wall (41) is provided with a through hole, and the water outlet (212) is communicated with the outlet space (111) through the through hole.

8. The water purification component according to claim 7, characterized in that, The second end cover (4) further includes a second rubber blocking wall (42) bent and connected to the bottom wall (41), the inner side surface of the second rubber blocking wall (42) is connected to the outer side surface of the capacitive deionization filter element (2), and a second gap is left between the outer side surface of the second rubber blocking wall (42) and the inner wall of the housing (1).

9. The water purification component according to any one of claims 1 to 8, characterized in that, The capacitive deionization filter element (2) includes: An electrode assembly (22), including: an insulating sheet (221) and at least two layers of electrode sheets (222), the insulating sheet (221) and the electrode sheets (222) are arranged in a laminated manner, and the insulating sheet (221) is sandwiched between two adjacent layers of the electrode sheets (222); The electrode sheet (222) includes 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 current collector layer (2221) of the positive electrode sheet is connected with the positive electrode tab (201), the current collector layer (2221) of the negative electrode sheet is connected with the negative electrode tab (202), and a water passing channel (2201) for accommodating the insulating sheet (221) is formed between the positive electrode sheet and the negative electrode sheet; A water outlet pipe (21), having a water outlet channel and a first water passing hole (211) communicated with the water outlet channel, the water outlet channel forms the water outlet (212), and the first water passing hole (211) is arranged on the peripheral wall of the water outlet pipe (21); the electrode assembly (22) is wound around the peripheral wall of the water outlet pipe (21), and the inner and outer ends of the electrode assembly (22) relative to the water outlet pipe (21) are respectively formed as the water outlet end and the water inlet end; Wherein, the water inlet end is communicated with the water outlet end through the water passing channel (2201), the water outlet end extends to the peripheral wall of the water outlet pipe (21), and is in fluid communication with the first water passing hole (211).

10. The water purification component according to claim 9, characterized in that, The water outlet pipe (21) extends into the outlet space (111), and the outer side surface of the water outlet pipe (21) is hermetically connected to the inner wall of the outlet space (111).

11. A water purification device, characterized in that, Including: A machine body and the water purification assembly according to any one of claims 1 to 10; The machine body has an installation cavity, and the water purification assembly is detachably arranged in the installation cavity.

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