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 capacitive deionization filter element, a first end of the capacitive deionization filter element is provided with a positive pole lug and a negative pole lug; the first end cover comprises a side wall and a top wall which are connected in a bending manner, the top wall is glued to the first end of the capacitive deionization filter element, a mounting space is defined by the side wall, and the positive pole lug and the negative pole lug extend into the mounting space; the annular fixing seat is coaxially arranged on the side wall, and a first positioning hole corresponding to the positive pole lug and a second positioning hole corresponding to the negative pole lug are formed in the annular fixing seat; the positive electrode electric connecting piece is arranged in the first positioning hole in a penetrating manner and is detachably connected with the positive electrode lug, and the negative electrode electric connecting piece is arranged in the second positioning hole in a penetrating manner and is detachably connected with the negative electrode lug. Therefore, efficient, stable and safe electric connection can be realized, the reliability of equipment is improved, and the service life of the equipment is prolonged.

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 theory of electric double layer capacitance. 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 electric field force and concentration gradient, and adsorb on the electrode surface to form an electric double layer, 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, the water purifier includes a water circuit part and an electric circuit part, and the structure of its electric circuit part is relatively complex, resulting in inconvenient installation and 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 can realize the rapid and accurate installation of the ear of the capacitive deionization filter element and the power connection 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 capacitive deionization filter element, having a water inlet end in its radial direction and a water outlet in its axial direction. The water outlet is arranged at the first end of the capacitive deionization filter element. The first end of the capacitive deionization filter element has a positive ear and a negative ear, and the positive ear and the negative ear are located outside the water outlet.

[0007] A first end cover, including a side wall and a top wall connected by bending. The top wall is adhesively connected to the first end of the capacitive deionization filter element. The side wall encloses an installation space, and the positive ear and the negative ear extend into the installation space.

[0008] An annular fixing seat, coaxially arranged on the side wall. The annular fixing seat is provided with a first positioning hole corresponding to the positive ear and a second positioning hole corresponding to the negative ear.

[0009] A positive electrical connector and a negative electrical connector. The positive electrical connector is inserted through the first positioning hole and is detachably connected to the positive ear. The negative electrical connector is inserted through the second positioning hole and is detachably connected to the negative ear.

[0010] According to an embodiment of the present utility model, the annular fixing seat includes a top plate and a side plate connected by bending, the top plate abuts against one side of the side wall away from the top wall, the top plate is provided with the first positioning hole and the second positioning hole, and the side plate abuts against the inner wall of the installation space.

[0011] According to an embodiment of the present utility model, the side plate is provided with a clamping groove, the inner wall of the installation space is provided with a clamping buckle, and the fixing seat and the first end cover are limited and matched in the circumferential direction of the installation space through the clamping groove and the clamping buckle.

[0012] According to an embodiment of the present utility model, each of the first positioning hole and the second positioning hole is a stepped hole, the stepped hole is provided with a stepped surface, and the outer side surface of each of the positive electrode electrical connector and the negative electrode electrical connector is provided with an abutting surface, and the abutting surface abuts against the stepped surface.

[0013] According to an embodiment of the present utility model, each of the positive electrode electrical connector and the negative electrode electrical connector is provided with a slot, and the corresponding tab is inserted into the slot.

[0014] According to an embodiment of the present utility model, it further includes:

[0015] A housing, the capacitive deionization filter element is arranged in the housing, a gap is left between the outer side surface of the capacitive deionization filter element and the inner wall of the housing, the inner wall of the housing is provided with a first partition plate and a second partition plate, the second partition plate is located outside the first partition plate, a water outlet space is formed by enclosing the first partition plate and the first end, and an accommodating space is formed by enclosing the first partition plate, the second partition plate and the first end; the outer side surface of the side wall is connected to the inner side surface of the second partition plate, the top wall is clamped between the first end and the second partition plate, and the annular fixing seat is located in the accommodating space and sleeved on the outer side surface of the second partition plate;

[0016] The housing is provided with a first through hole and a second through hole communicating with the accommodating space, a water outlet port communicating with the water outlet space, and an inlet port communicating with the gap, the first through hole, the second through hole, the water outlet port and the inlet port are located on the same side of the housing, the water outlet is communicated with the water outlet space, the positive electrode electrical connector sequentially passes through the first positioning hole and the first through hole, and the negative electrode electrical connector sequentially passes through the second positioning hole and the second through hole.

[0017] According to an embodiment of the present utility model, the water outlet extends into the water outlet space, and the water outlet is hermetically connected to the inner wall of the water outlet space.

[0018] According to an embodiment of the present utility model, it further includes a second end cap, and the second end cap is adhesively bonded to the second end of the capacitive deionization filter element.

[0019] According to an embodiment of the present utility model, the capacitive deionization filter element includes:

[0020] An electrode assembly, including: an insulating sheet and at least two layers of electrode sheets, the insulating sheet and the electrode sheets are arranged in a laminated manner, and the insulating sheet is clamped between two adjacent layers of the electrode sheets;

[0021] 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 the positive electrode tab, the current collector layer of the negative electrode sheet is connected with the negative electrode tab, and a water passing channel for accommodating the insulating sheet is formed between the positive electrode sheet and the negative electrode sheet;

[0022] A water outlet pipe, having a water outlet channel and water passing holes communicated with the water outlet channel, the water outlet is formed in the water outlet channel, and the water passing holes are 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 relative to the water outlet pipe are respectively formed as a water outlet end and a water inlet end;

[0023] Wherein, the water inlet end is communicated with the water outlet end through the water passing channel, the water outlet end extends to the peripheral wall of the water outlet pipe, and forms a fluid connection with the water passing holes.

[0024] The water purification device according to an embodiment of the second aspect of the present utility model includes: 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.

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

[0026] Under the positioning and support of the first positioning hole of the annular fixing seat, the positive electrode electrical connector can be inserted into the first positioning hole and directly connected to the positive electrode tab. Under the positioning and support of the second positioning hole of the annular fixing seat, the negative electrode electrical connector can be inserted into the second positioning hole and directly connected to the negative electrode tab. In this way, efficient, stable and safe electrical connection can be achieved, improving the reliability and service life of the device.

[0027] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. 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 one of the structural schematic diagrams of the water outlet pipe provided by the embodiment of the present utility model.

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

[0035] Figure 7 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.

[0036] Figure 8 It is the structural schematic diagram of the first end cap provided by the embodiment of the present utility model.

[0037] Figure 9 It is the structural schematic diagram of the annular fixing seat provided by the embodiment of the present utility model.

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

[0039] Figure 11 It is the assembly structural 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.

[0040] Figure 12 is Figure 2 partial schematic diagram of.

[0041] Figure 13 It is the cross-sectional schematic diagram of the laminated arrangement of the electrode assembly provided by the embodiment of the present utility model.

[0042] Figure 14 It is a cross-sectional schematic view of the electrode sheet provided by the embodiment of the present utility model.

[0043] Reference numerals:

[0044] 1. Housing; 11. Protrusion; 101. Water inlet port; 102. Water outlet port; 103. First through hole; 104. Second through hole; 111. Water outlet space; 112. Accommodation space; 121. First partition; 122. Second partition;

[0045] 2. Capacitive deionization filter element; 21. Water outlet pipe; 22. Electrode assembly; 211. Water outlet channel; 212. Water passing hole; 213. Water outlet; 214. Diversion groove; 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 cover; 31. Side wall; 311. Snap; 32. Top wall; 321. Rubber blocking plate; 33. First rubber blocking wall; 331. Groove; 332. Abutting portion;

[0047] 4. Second end cover; 41. Bottom wall; 42. Second rubber blocking wall;

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

[0049] 6. Annular fixing seat; 61. Top plate; 611. First positioning hole; 62. Side plate; 621. Card slot. Detailed implementation manners

[0050] The following further describes in detail the implementation manners 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 relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, 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, and therefore cannot be understood as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present utility model, unless otherwise stated, the meanings of "multiple", "multiple roots", and "multiple 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 specified and defined, the terms "connected" and "connected" 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 situations.

[0053] In the embodiments of the present utility model, unless otherwise clearly specified and defined, 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" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at 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", "examples", "specific examples", or "some examples" etc. 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 Figures 1 to 14 , through specific embodiments and their application scenarios, will describe in detail the water purification components and water purification equipment provided by the embodiments of the present utility model.

[0056] In the first aspect, as Figure 2 , Figure 8 , Figure 9 , Figure 10 and Figure 11 shown, the water purification component implemented by the present utility model includes: a first end cap 3, a power connection component 5, an annular fixing seat 6, and a capacitive deionization filter element 2.

[0057] The capacitive deionization filter element 2 has a water inlet end in its radial direction and a water outlet 213 in its axial direction. The water outlet 213 is arranged at the first end of the capacitive deionization filter element 2. The first end of the capacitive deionization filter element 2 has a positive electrode tab 201 and a negative electrode tab 202, and the positive electrode tab 201 and the negative electrode tab 202 are located outside the water outlet 213.

[0058] The first end cap 3 includes a side wall 31 and a top wall 32 which are bent and connected. The top wall 32 is adhesively bonded to the first end of the capacitive deionization filter element 2. The side wall 31 encloses an installation space, and the positive electrode tab 201 and the negative electrode tab 202 extend into the installation space.

[0059] It can be understood that the top wall 32 is in a disc shape, the top wall 32 is provided with a central hole, the central hole is coaxially arranged with the water outlet port 102, the side wall 31 extends circumferentially relative to the central hole, and the positive electrode tab 201, the negative electrode tab 202 and the water outlet 213 of the capacitive deionization filter element 2 pass through the central hole.

[0060] The annular fixing seat 6 is coaxially arranged on the side wall 31. The annular fixing seat 6 is provided with a first positioning hole 611 corresponding to the positive electrode tab 201 and a second positioning hole corresponding to the negative electrode tab 202. The power connection assembly 5 includes a positive electrode electrical connector 51 and a negative electrode electrical connector 52. The positive electrode electrical connector 51 is inserted into the first positioning hole 611 and is detachably connected to the positive electrode tab 201. The negative electrode electrical connector 52 is inserted into the second positioning hole and is detachably connected to the negative electrode tab 202. Exemplarily, the positive electrode electrical connector 51 is in plug-in fit with the positive electrode tab 201, and the negative electrode electrical connector 52 is in plug-in fit with the negative electrode tab 202. Among them, the positive electrode electrical connector 51 and the negative electrode electrical connector 52 are used to connect to an external power supply.

[0061] Specifically, under the positioning and support of the first positioning hole 611 of the annular fixing seat 6, the positive electrode electrical connector 51 can be inserted into the first positioning hole 611 and directly connected to the positive electrode tab 201. Under the positioning and support of the second positioning hole of the annular fixing seat 6, the negative electrode electrical connector 52 can be inserted into the second positioning hole and directly connected to the negative electrode tab 202. In this way, efficient, stable and safe electrical connection can be achieved, and the reliability and service life of the equipment can be improved.

[0062] In some embodiments, as Figure 8 and Figure 9 shown, the annular fixing seat 6 includes a top plate 61 and a side plate 62 which are bent and connected. The top plate 61 abuts against the side wall 31 on the side away from the top wall 32. The top plate 61 is provided with a first positioning hole 611 and a second positioning hole, and the side plate 62 abuts against the inner wall of the installation space.

[0063] Specifically, the top plate 61 abuts against the top of the side wall 31, and the side plate 62 is in interference fit with the inner side surface of the side wall 31. In this way, the connection between the annular fixing seat 6 and the first end cover 3 can be realized, ensuring the relative fixation of the annular fixing seat 6 and the first end cover 3, so as to prevent the first positioning hole 611 from shifting relative to the positive electrode tab 201 and the second positioning hole from shifting relative to the negative electrode tab 202.

[0064] In some embodiments, as Figure 8 and Figure 9 shown, the side plate 62 is provided with a clamping groove 621, and the inner wall of the installation space is provided with a clamping buckle 311. The fixing seat and the first end cover 3 are in limit fit through the clamping groove 621 and the clamping buckle 311 in the circumferential direction of the installation space.

[0065] Specifically, a clamping groove 621 is provided on the side of the side plate 62 away from the top plate 61, and a clamping buckle 311 is provided on the inner side surface of the side wall 31. In this way, the fixing seat and the first end cover 3 are in limit fit through the clamping groove 621 and the clamping buckle 311 in the circumferential direction of the installation space, further improving the installation stability of the fixing seat and the first end cover 3.

[0066] In some embodiments, as Figure 9 shown, each of the first positioning hole 611 and the second positioning hole is a stepped hole, the stepped hole is provided with a stepped surface, and 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.

[0067] That is to say, under the action of the annular fixing seat 6, it can ensure the docking coaxiality of the electrical connector and the tab, and ensure that during the docking process of the electrical connector and the tab, the electrical connector will not move excessively, so as not to cause extrusion damage to the tab.

[0068] In some embodiments, as Figure 2 、 Figure 9 and Figure 12 shown, 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. In this way, it can ensure the quick and stable docking of the electrical connector and the tab.

[0069] As Figure 1 and Figure 2As shown in the figure, the water purification component of the embodiment of the present utility model further includes: a housing 1, a capacitive deionization filter element 2 is arranged in the housing 1, and there is a gap between the outer side surface of the capacitive deionization filter element 2 and the inner wall of the housing 1. The inner wall of the housing 1 is provided with a first partition plate 121 and a second partition plate 122. The second partition plate 122 is located outside the first partition plate 121. The first partition plate 121 and the first end enclose a water outlet space 111, and the first partition plate 121, the second partition plate 122 and the first end enclose an accommodation space 112; the outer side surface of the side wall 31 is connected to the inner side surface of the second partition plate 122, and the top wall 32 is clamped between the first end and the second partition plate 122. The annular fixing seat 6 is located in the accommodation space 112 and sleeved on the outer side surface of the second partition plate 122.

[0070] The housing 1 is provided with a first through hole 103 and a second through hole 104 communicating with the accommodation space 112, a water outlet port 102 communicating with the water outlet space 111, and a water inlet port 101 communicating with the gap. The first through hole 103, the second through hole 104, the water outlet port 102 and the water inlet port 101 are located on the same side of the housing 1. The water outlet 213 communicates with the water outlet space 111. The positive electrode electrical connector 51 sequentially passes through the first positioning hole 611 and the first through hole 103, and the negative electrode electrical connector 52 sequentially passes through the second positioning hole and the second through hole 104.

[0071] It can be understood that the housing 1 is columnar, there is an accommodation cavity in the housing 1, and the capacitive deionization filter element 2 is installed in the accommodation cavity and is configured to be coaxially arranged with the housing 1. The water inlet port 101 and the water outlet port 102 are respectively located at the first end of the housing 1 and communicate with the accommodation cavity.

[0072] It can be understood that the first partition plate 121 and the second partition plate 122 are respectively arranged on the inner wall of the first end of the housing 1, the water outlet port 102 is arranged at the center of the first end of the housing 1, and the first partition plate 121 and the second partition plate 122 respectively extend circumferentially relative to the water outlet port 102 in a ring shape. Since the second partition plate 122 is located outside the first partition plate 121, the accommodation space 112 is located outside the water outlet space 111.

[0073] In practical applications, only by abutting the first end of the capacitive deionization filter element 2 against the inner wall of the first end of the housing 1, the water outlet space 111 and the accommodation space 112 can be formed between the first end of the capacitive deionization filter element 2 and the first end of the housing 1 based on the first partition plate 121 and the second partition plate 122.

[0074] When the first end of the capacitive deionization filter element 2 abuts against the inner wall of the first end of the housing 1, the outer side surface of the side wall 31 is hermetically connected to the inner side surface of the second partition plate 122. A closed accommodation space 112 is formed among the side wall 31, the first partition plate 121 and the first end of the capacitive deionization filter element 2, and waterproof isolation of the positive electrode tab 201 and the negative electrode tab 202 can be achieved based on the accommodation space 112.

[0075] Meanwhile, the peripheral wall of the water outlet 213 and the inner side surface of the first partition plate 121 can also be configured to be hermetically connected. This design can ensure that the water output from the water outlet 213 directly discharges from the water outlet port 102 after entering the water outlet space 111, and the water in the water outlet space 111 will not flow into the accommodation space 112.

[0076] In some embodiments, such as Figure 2 , Figure 3 and Figure 8 shown, the first end cap 3 further includes: a first glue-blocking wall 33, the first glue-blocking wall 33 is bent and connected to the top wall 32, the top wall 32 and the first end of the capacitive deionization filter element 2 are hermetically connected through a filling glue, and the inner side surface of the first glue-blocking wall 33 is attached to the peripheral wall of the capacitive deionization filter element 2;

[0077] Wherein, a water passing gap is left between the outer side surface of the first glue-blocking wall 33 and the inner wall of the housing 1, and the water inlet port 101 is communicated with the gap through the water passing gap.

[0078] It can be understood that the filling glue can be epoxy resin glue, and the filling glue forms a sealing glue layer at the first end of the capacitive deionization filter element 2. The first glue-blocking wall 33 is arranged on the outer edge of the top wall 32 and extends circumferentially relative to the central hole. The inner diameter of the first glue-blocking wall 33 is adapted to the diameter of the capacitive deionization filter element 2.

[0079] Optionally, in order to ensure the sealing effect of the first end of the capacitive deionization filter element 2, the side surface of the top wall 32 facing the capacitive deionization filter element 2 is provided with a first support rib, and the first support rib can be configured to extend radially along the water outlet pipe 21. The first support rib is used to ensure the filling thickness of the filling glue at the first end of the capacitive deionization filter element 2 and is beneficial to ensuring the forming quality of the filling glue.

[0080] In an alternative embodiment, such as Figure 12 shown, in order to ensure the forming quality of the filling glue, the side surface of the top wall 32 facing the capacitive deionization filter element 2 is further provided with a glue-blocking plate 321, and the glue-blocking plate 321 is arranged close to the side wall 31. That is to say, the glue-blocking plate 321 is arranged on the inner edge of the top wall 32 and extends circumferentially relative to the central hole. The glue-blocking plate 321 is used to limit the flow of the filling glue towards the area where the central hole is located.

[0081] In an alternative embodiment, such as Figure 8 andFigure 11 As shown, a plurality of spaced-apart abutting portions 332 are provided on the outer side surface of the first rubber blocking wall 33, and the abutting portions 332 abut against the inner wall of the housing 1.

[0082] In other words, bumps can be provided on the outer side surface of the first rubber blocking wall 33, and the bumps abut against the inner wall of the housing 1 so as to form a water passing gap between the outer side surface of the first rubber blocking wall 33 and the inner wall of the housing 1.

[0083] In some embodiments, as Figure 2 、 Figure 3 、 Figure 10 and Figure 11 shown, the water purification assembly further includes: a second end cap 4;

[0084] 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 hermetically connected to the second end of the capacitive deionization filter element 2 through a filling adhesive, and the second rubber blocking wall 42 is attached to the peripheral wall of the capacitive deionization filter element 2.

[0085] It can be understood that the bottom wall 41 is in a disc shape, the filling adhesive forms a sealing adhesive layer at the second end of the capacitive deionization filter element 2, and the bottom wall 41 is attached to the surface of the sealing adhesive layer to realize the sealing of the second end of the capacitive deionization filter element 2.

[0086] The second rubber blocking wall 42 is provided on the outer edge of the bottom wall 41 and extends circumferentially relative to the center of the bottom wall 41. The inner diameter of the second rubber blocking wall 42 is adapted to the diameter of the capacitive deionization filter element 2, and the second rubber blocking wall 42 is used to prevent the filling adhesive from overflowing to the peripheral wall of the capacitive deionization filter element 2.

[0087] Furthermore, second support ribs can also be provided on one side surface of the bottom wall 41 facing the capacitive deionization filter element 2. The second support ribs can be configured to extend radially along the water outlet pipe 21, and the second support ribs are used to ensure the thickness of the filling adhesive filled at the second end of the capacitive deionization filter element 2 and are beneficial to ensuring the forming quality of the filling adhesive.

[0088] In practical applications, as Figure 8 、 Figure 9 、 Figure 10 and Figure 11As shown in the figure, first, a layer of filling glue is provided in the first area at the first end of the capacitive deionization filter element 2. The first area is axially opposite to the top wall 32 along the housing 1. 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 fits against 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 provided in the second area at the first end of the capacitive deionization filter element 2. The second area corresponds to the area where the central hole is located on the top wall 32, thereby completing the sealing of the first end of the capacitive deionization filter element 2. Subsequently, the annular fixing seat 6 is installed on the side wall 31. Under the limiting cooperation of the card slot 621 and the buckle 311, the first positioning hole 611 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 611 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.

[0089] In an alternative embodiment, as Figure 8 and Figure 12 shown, the positioning structure includes a groove 331 and a protrusion 11. The protrusion 11 is provided on the inner wall of the housing 1, and the groove 331 extends from the outer side of the top wall 32 to the outer side of the first glue-blocking wall 33. Thus, when assembling the capacitive deionization filter element 2 and the housing 1, the docking accuracy between the positive electrode electrical connector 51 and the first through hole 103 and the docking accuracy between the negative electrode electrical connector 52 and the second through hole 104 can be ensured. Among them, after the capacitive deionization filter element 2 is assembled to the housing 1, the top plate 61 of the annular fixing seat 6 can be sleeved on the outer side of the first partition 121.

[0090] 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 2 is installed in the first housing, the first housing and the second housing are then connected.

[0091] As Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7 shown, 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;

[0092] The water outlet pipe 21 has a water outlet channel 211, a water passing hole 212 and a water outlet 213 that communicate with the water outlet channel 211. The water outlet channel 211 is arranged inside the water outlet pipe 21, the water outlet channel 211 forms the water outlet 213, and the water passing hole 212 is arranged on the peripheral wall of the water outlet pipe 21. Exemplarily, the water outlet 213 is arranged at the first end of the water outlet pipe 21, and the water passing hole 212 is arranged on the peripheral wall near the second end of 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 stacked, 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 the two 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 purified water after desalination treatment is output from the inner side 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 wastewater with a higher concentration is output from the inner side 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 212, the water body output from the inner side of the electrode assembly 22 will uniformly enter the water outlet channel 211 through each water passing hole 212. If there are bubbles 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 body will not act on the desorption of the bubbles. However, in this application, by arranging the water passing hole 212 on the peripheral wall near the second end of the water outlet pipe 21, the water passing hole 212 is arranged far away from the water outlet 213. 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 water passing hole 212 is located, and then sequentially output through the water passing hole 212, the water outlet channel 211 and the water outlet 213. Then, during the flow of the water body, since the water passing hole 212 is arranged far away from the water outlet 213, the flowing water body will gradually converge towards the area where the water passing hole 212 is located, which will gradually squeeze the bubbles generated in the electrode assembly 22 towards the area where the water passing hole 212 is located, then enter the water outlet channel 211 from the water passing hole 212, and be discharged together with the water body, thereby effectively removing the bubbles appearing in the capacitive deionization filter element 2.

[0096] As can be seen from the above, in the process of desalination by the capacitive deionization filter element 2 of the present utility model, the air bubbles generated inside the filter element can be effectively discharged, which can 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 also ensure the water purification effect of the capacitive deionization filter element 2.

[0097] It should be noted here that as Figure 4 shown, the capacitive deionization filter element 2 further includes a protective sleeve. For example, the protective sleeve is a cylindrical rubber film. The protective sleeve is sleeved on the peripheral wall of the electrode assembly 22, and a plurality of water passing holes 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 holes, and then the electrode assembly 22 performs desalination treatment on the received water body.

[0098] In some embodiments, as Figure 2 , Figure 5 and Figure 6 shown, a diversion groove 214 is provided on the peripheral wall of the water outlet pipe 21, and a fluid communication is formed between the diversion groove 214 and the water passing hole 212.

[0099] It can be understood that by providing the diversion 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 from being too small to cause water flow restriction to the water body, so as to facilitate collecting the purified water output from the inner side of the electrode assembly 22 by the diversion groove 214 and then diverting the collected purified water to the water passing hole 212.

[0100] Among them, the depth of the diversion groove 214 can be set to 2-5 mm.

[0101] In some embodiments, as Figure 5 shown, since the length of the water outlet pipe 21 is substantially the same as the length of the electrode assembly 22 along the axial direction of the central axis, one end of the diversion groove 214 is provided on the peripheral wall near the first end of the water outlet pipe 21, and the other end is provided on the peripheral wall near the second end of the water outlet pipe 21, so that the purified water output from the inner side of the electrode assembly 22 can be effectively collected at various positions along the axial direction of the water outlet pipe 21 by the diversion groove 214, ensuring the diversion effect on the purified water.

[0102] Among them, the diversion groove 214 can be configured to be provided on the peripheral wall of the water outlet pipe 21 along a spiral track or along a straight track, and no specific limitation is made thereto.

[0103] In some embodiments, as Figure 5 shown, the diversion groove 214 is configured to extend along the axial direction of the water outlet pipe 21. This design can effectively reduce the diversion path of the purified water and is also convenient for processing the diversion groove 214.

[0104] Meanwhile, since the inner and outer ends of the electrode assembly 22 correspond to the water outlet end and the water inlet end with respect to the water outlet pipe 21, and the electrode assembly 22 is configured to be wound around the circumferential wall of the water outlet pipe 21, the water outlet end of the electrode assembly 22 extends along the axial direction of the water outlet pipe 21. By arranging the diversion grooves 214 to extend along the axial direction of the water outlet pipe 21, it is convenient to relatively arrange the diversion grooves 214 with the water outlet end of the electrode assembly 22, ensuring the diversion effect on the purified water.

[0105] In some embodiments, as Figure 6 shown, in order to enhance the diversion effect on the purified water, a plurality of diversion grooves 214 and water passing holes 212 are provided. The plurality of diversion grooves 214 and the plurality of water passing holes 212 are arranged opposite to each other, and at least a part of the plurality of water passing holes 212 are arranged along the circumferential direction of the water outlet pipe 21.

[0106] Optionally, each diversion groove 214 can be configured to form fluid communication with a plurality of water passing holes 212 arranged along the axial direction of the water outlet pipe 21, and each diversion groove 214 extends along the axial direction of the water outlet pipe 21.

[0107] Optionally, the plurality of diversion grooves 214 and the plurality of water passing holes 212 are arranged opposite to each other one by one. The plurality of water passing holes 212 are arranged along the circumferential direction of the water outlet pipe 21, and the plurality of diversion grooves 214 are also arranged along the circumferential direction of the water outlet pipe 21. Each diversion groove 214 extends along the axial direction of the water outlet pipe 21.

[0108] In some embodiments, a plurality of water passing holes 212 are provided. The sum of the water passing areas of the plurality of water passing holes 212 is not less than 20 mm². For example, the sum of the water passing areas of the plurality of water passing holes 212 is 20 mm², 25 mm², 35 mm², 50 mm², etc. This design avoids a large flow resistance when the water body passes through the water passing holes 212 and prevents the water passing holes 212 from restricting the flow of the water body.

[0109] 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 water passing holes 212 and the second end of the water outlet pipe 21 to the length of the water outlet pipe 21 is not greater than 15%.

[0110] Optionally, the length of the capacitive deionization filter element 2 is approximately 333 - 350 mm. The axial distance between the water passing holes 212 and the second end of the water outlet pipe 21 can be set to be less than 50 mm, so that the water passing holes 212 are as far as possible from the water outlet 213 of the capacitive deionization filter element 2, thereby ensuring the exhaust effect.

[0111] In some embodiments, as Figure 7 , Figure 13 and Figure 14As 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;

[0112] The electrode sheet 222 includes a current collector layer 2221 and an adsorption layer 2222. 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;

[0113] The inner and outer ends of the electrode assembly 22 corresponding to the inner and outer ends of the water outlet pipe 21 are respectively formed as 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 to the peripheral wall of the water outlet pipe 21 and forms a fluid communication with the water passage hole 212.

[0114] It can be understood that the insulating sheet 221 and the electrode sheets 222 are stacked in an alternating arrangement to achieve 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.

[0115] For the electrode sheet 222, the current collector layer 2221 of the electrode sheet 222 can be made of a metal or graphite material so that the current collector layer 2221 is formed as a conductive layer, and the adsorption layer 2222 of the electrode sheet 222 can be made of activated carbon and other adsorption materials to adsorb ions in the raw water.

[0116] At the same time, the insulating sheet 221 can be made of a 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.

[0117] In practical applications, the work of the capacitor deionization filter element 2 includes an adsorption purification process and a desorption regeneration process. When the two adjacent layers of electrode sheets 222 are electrically connected to the positive and negative electrodes of the power supply and the power supply is started, the anions and cations in the raw water are attracted to the electrode sheets 222 with opposite charges and adsorbed by the adsorption layer 2222 on the electrode sheets 222. This working process of the capacitor deionization filter element 2 is an adsorption purification process.

[0118] 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 in the water channel 2201. At this time, the water channel 2201 outputs concentrated water with a higher ion concentration.

[0119] As can be seen from the above, the capacitor deionization filter element 2 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.

[0120] At the same time, in practical applications, only two adjacent layers of electrode sheets 222 need to be electrically connected to the positive and negative electrodes of the power supply to adsorb the ions in the raw water passing through the water passage 2201, thereby achieving the purpose of purifying the raw water; since the two sides of the current collector layer 2221 of each electrode sheet 222 are provided with adsorption layers 2222, the two sides of each electrode sheet 222 can achieve the adsorption of ions, thereby ensuring the purification effect of the raw water to a certain extent. The capacitor deionization filter element 2 can effectively remove heavy metal ions in water, retain the beneficial ions required by the human body, and meet the needs of household water purification.

[0121] 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 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.

[0122] Further, by arranging the insulating sheet 221 and the electrode sheet 222 to be offset in the stacking direction, the electrode sheet 222 is hidden between two adjacent insulating sheets 221. This design not only ensures electrical isolation between two adjacent electrode sheets 222 but also facilitates arranging the water outlet end of the electrode assembly 22 at a position opposite to the water passing holes 212 and / or the diversion grooves 214 on the peripheral wall of the water outlet pipe 21, so as to ensure that the water passing channel 2201 in the electrode assembly 22 is in fluid communication with the water outlet channel 211 in the water outlet pipe 21. Herein, the stacking direction is along the thickness direction of the insulating sheet 221 or the electrode sheet 222.

[0123] In some embodiments, multiple groups of water passing holes 212 are arranged circumferentially on the peripheral wall of the water outlet pipe 21. For example, multiple groups of water passing holes 212 are evenly arranged circumferentially along the water outlet pipe 21; each group of water passing holes 212 is arranged axially along the water outlet pipe 21; the number of electrode sheets 222 is greater than two, 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 water passing holes 212.

[0124] It can be understood that by setting the number of electrode sheets 222 to be greater than two, based on the multiple water passing channels 2201 formed by the electrode assembly 22, the raw water flowing in multiple paths in the capacitive deionization filter element 2 can be purified simultaneously, improving the purification efficiency of the raw water.

[0125] Meanwhile, by arranging the multiple water outlet ends opposite to the multiple groups of water passing holes 212, the smoothness of the water path between each water passing channel 2201 and the water outlet channel 211 in the water outlet pipe 21 can be ensured, which is conducive to ensuring the purified water outlet flow rate of the capacitive deionization filter element 2.

[0126] In some embodiments, as Figure 2 、 Figure 4 and Figure 7 shown, in order to facilitate connecting two adjacent 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.

[0127] Specifically, a first extension portion is provided on one side edge of the current collector layer 2221 of each positive electrode sheet, and a second extension portion is provided on one side edge 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 the respective positive electrode sheets are stacked to form the positive electrode tab 201, and the second extension portions of the respective negative electrode sheets are stacked to form the negative electrode tab 202.

[0128] 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.

[0129] 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.

[0130] 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 likely to be damaged; if the current collector layer 2221 is too thick, the cost of the electrode sheet 222 is too high. Thus, 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.

[0131] 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 will crack during winding. Thus, 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.

[0132] 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.

[0133] In this way, although the insulating sheet 221 is disposed in the water - passing channel 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 - passing channel 2201 and can, to a certain extent, ensure the adsorption effect of the adsorption layer 2222 on ions.

[0134] 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 risk of blockage. 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 mm; optionally, the thickness of the insulating sheet 221 is specifically set to 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, etc.

[0135] In an alternative embodiment, as Figure 3 shown, the end of the water outlet pipe 21 provided with the water outlet 213 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.

[0136] In other words, the end of the water outlet pipe 21 provided with the water outlet 213 extends into the first partition 121, and the outer side surface of the water outlet pipe 21 is sealingly connected to the inner side surface of the first partition 121. For example, the sealing connection is achieved through a sealing ring.

[0137] 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 assembly as described above; the machine body has an installation cavity, and the water purification assembly is detachably disposed in the installation cavity.

[0138] 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.

[0139] Since the water purification device includes the water purification assembly, and the specific structure of the water purification assembly 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 herein one by one.

[0140] 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 recorded in the foregoing embodiments, or perform equivalent replacements on 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 capacitive deionization filter element (2), having a water inlet end along its radial direction and a water outlet (213) along its axial direction, the water outlet (213) being provided at the first end of the capacitive deionization filter element (2), the first end of the capacitive deionization filter element (2) having a positive electrode tab (201) and a negative electrode tab (202), the positive electrode tab (201) and the negative electrode tab (202) being located outside the water outlet (213); A first end cap (3), comprising a side wall (31) and a top wall (32) connected by bending, the top wall (32) being adhesively bonded to the first end of the capacitive deionization filter element (2), the side wall (31) enclosing to form an installation space, the positive electrode tab (201) and the negative electrode tab (202) extending into the installation space; An annular fixing seat (6), coaxially arranged on the side wall (31), the annular fixing seat (6) being provided with a first positioning hole (611) corresponding to the positive electrode tab (201) and a second positioning hole corresponding to the negative electrode tab (202); A positive electrode electrical connector (51) and a negative electrode electrical connector (52), the positive electrode electrical connector (51) being inserted through the first positioning hole (611) and being detachably connected to the positive electrode tab (201), the negative electrode electrical connector (52) being inserted through the second positioning hole and being detachably connected to the negative electrode tab (202).

2. The water purification component according to claim 1, characterized in that The annular fixing seat (6) comprises a top plate (61) and a side plate (62) connected by bending, the top plate (61) abutting against the side of the side wall (31) away from the top wall (32), the top plate (61) being provided with the first positioning hole (611) and the second positioning hole, the side plate (62) abutting against the inner wall of the installation space.

3. The water purification component according to claim 2, wherein The side plate (62) is provided with a clamping groove (621), and the inner wall of the installation space is provided with a clamping buckle (311), and the fixing seat and the first end cap (3) are in limit fit in the circumferential direction of the installation space through the clamping groove (621) and the clamping buckle (311).

4. The water purification component according to claim 1, wherein Each of the first positioning hole (611) and the second positioning hole is a stepped hole, the stepped hole is provided with a stepped surface, and 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.

5. The water purification component according to claim 1, characterized in that Each of the positive electrode electrical connector (51) and the negative electrode electrical connector (52) is provided with a slot, and the corresponding electrode tab is inserted into the slot.

6. The water purification component according to any one of claims 1 to 5, characterized in that, Also comprising: A housing (1), within which a capacitive deionization filter element (2) is disposed. A gap is left between the outer side surface of the capacitive deionization filter element (2) and the inner wall of the housing (1). The inner wall of the housing (1) is provided with a first partition (121) and a second partition (122). The second partition (122) is located outside the first partition (121). The first partition (121) and the first end enclose an outlet space (111). The first partition (121), the second partition (122) and the first end enclose a receiving space (112). The outer side surface of the side wall (31) is connected to the inner side surface of the second partition (122). The top wall (32) is clamped between the first end and the second partition (122). The annular fixing seat (6) is located within the receiving space (112) and sleeved on the outer side surface of the second partition (122). The housing (1) is provided with a first through hole (103) and a second through hole (104) communicating with the receiving space (112), an outlet port (102) communicating with the outlet space (111), and an inlet port (101) communicating with the gap. The first through hole (103), the second through hole (104), the outlet port (102) and the inlet port (101) are located on the same side of the housing (1). The water outlet (213) communicates with the outlet space (111). The positive electrode electrical connector (51) sequentially passes through the first positioning hole (611) and the first through hole (103). The negative electrode electrical connector (52) sequentially passes through the second positioning hole and the second through hole (104).

7. The water purification component according to claim 6, wherein The water outlet (213) extends into the outlet space (111), and is hermetically connected between the water outlet (213) and the inner wall of the outlet space (111).

8. The water purification component according to any one of claims 1 to 5, characterized in that, It further includes a second end cap (4), and the second end cap (4) is adhesively bonded to the second end of the capacitive deionization filter element (2).

9. The water purification component according to any one of claims 1 to 5, 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. The insulating sheet (221) is clamped between two adjacent layers of the electrode sheets (222). 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 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). A water passage (2201) for accommodating the insulating sheet (221) is formed between the positive electrode sheet and the negative electrode sheet. The water outlet pipe (21) has a water outlet channel (211) and a water passing hole (212) communicating with the water outlet channel (211). The water outlet (213) is formed in the water outlet channel (211), and the water passing hole (212) is provided 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 correspondingly formed as a 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 towards the peripheral wall of the water outlet pipe (21) and forms a fluid communication with the water passing hole (212).

10. A water purification device, characterized in that, Comprising: A machine body and the water purification assembly according to any one of claims 1 to 9; The machine body has an installation cavity, and the water purification assembly is detachably arranged in the installation cavity.

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