CN211896195U

CN211896195U - Capacitor deionization electrode piece component and water softener

Info

Publication number: CN211896195U
Application number: CN202020078354.9U
Authority: CN
Inventors: 徐伟; 黄隆重; 周静; 黄海; 许伟东; 黄宁杰
Original assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Current assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-11-10
Anticipated expiration: 2030-01-14

Abstract

A capacitive deionization electrode plate assembly comprises a first electrode plate and a second electrode plate, wherein the first electrode plate is provided with a first adsorption layer for adsorbing positive ions; the first electrode plate and the second electrode plate respectively comprise power supply connecting parts used for connecting the positive electrode and the negative electrode of a direct-current power supply, wherein the number of the power supply connecting parts of at least one of the first electrode plate and the second electrode plate is at least two. The application also relates to a water softener comprising the capacitive deionization electrode plate assembly. Compare in prior art, this application sets up the quantity of the power connecting portion of at least one electrode slice in first electrode slice and the second electrode slice into at least two, has increased the power tie point, is favorable to the electric field to distribute more evenly between first electrode slice and second electrode slice to be favorable to improving soft water effect.

Description

Capacitor deionization electrode piece component and water softener

Technical Field

The application relates to a capacitor deionization electrode piece assembly and a water softener, and belongs to the technical field of capacitor deionization.

Background

A capacitive deionization electrode sheet assembly in the related art generally includes a first electrode sheet, a second electrode sheet, and an adsorption material located on the surfaces of the first electrode sheet and the second electrode sheet, and the adsorption material is used for adsorbing anions and cations in water. The first electrode plate and the second electrode plate are respectively provided with a raised power supply connecting part for connecting the positive electrode and the negative electrode of a power supply. However, the adsorption material on the surfaces of the first electrode plate and the second electrode plate is similar to a resistor, which reduces the intensity of the electric field on the side away from the power connection portion, so that the electric field is not uniformly distributed, which is not favorable for performing the soft water function of the capacitive deionization electrode plate assembly. Especially under the condition that first electrode slice and second electrode slice have a plurality of respectively, along with the increase of electrode slice number of piles, the area of electrode slice also increases, and the resistance value that is formed by the adsorption material on electrode slice surface also constantly increases, and this can make the weakening of terminal electric field intensity become more obvious to influence electric field distribution uniformity, be unfavorable for the soft water effect.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a capacitance deionization electrode piece subassembly and water softener that can improve soft water effect.

In order to achieve the purpose, the following technical scheme is adopted in the application: a capacitive deionization electrode sheet assembly comprises a plurality of electrode sheets, wherein the plurality of electrode sheets comprise at least one first electrode sheet and at least one second electrode sheet stacked together with the first electrode sheet, and a circulation channel for water to pass through is formed between the first electrode sheet and the second electrode sheet adjacent to the first electrode sheet; a first adsorption layer for adsorbing positive ions is arranged on one side, facing the flow channel, of the first electrode plate; the first electrode plate and the second electrode plate respectively comprise power supply connecting parts, wherein the power supply connecting part of the first electrode plate is used for connecting one of the positive pole and the negative pole of a direct-current power supply, the power supply connecting part of the second electrode plate is used for connecting the other of the positive pole and the negative pole of the direct-current power supply, and the number of the power supply connecting parts of at least one of the first electrode plate and the second electrode plate is more than or equal to 2.

This application sets up the quantity of the power connecting portion of at least one electrode slice in first electrode slice and the second electrode slice into at least two, has increased the power tie point of electrode slice, is favorable to the electric field to distribute more evenly between first electrode slice and second electrode slice to be favorable to improving soft water effect.

Drawings

Fig. 1 is a perspective view of a water softener according to the present application.

Fig. 2 is a partial exploded perspective view of fig. 1.

Fig. 3 is a top view of the cover of fig. 2 removed.

Fig. 4 is a further exploded perspective view of fig. 2.

Fig. 5 is a top view of the substrate of fig. 4.

FIG. 6 is a schematic perspective view of a capacitive deionization electrode pad assembly according to the present application.

Fig. 7 is a partial exploded perspective view of fig. 6 with four bolts separated.

Fig. 8 is a partial exploded perspective view of fig. 7 with the four bolts removed.

Fig. 9 is a plan view of the first electrode sheet in fig. 8.

Fig. 10 is a plan view of the second electrode sheet in fig. 8.

Fig. 11 is a top view of the first electrode sheet of fig. 9 assembled with the second electrode sheet of fig. 10.

Fig. 12 is a schematic sectional view taken along line a-a in fig. 6.

Fig. 13 is an enlarged partial view of the circled portion of fig. 12 in another embodiment.

Detailed Description

Referring to fig. 1 to 13, the present application discloses a water softener 100, which comprises a housing 200 and a capacitive deionization electrode sheet assembly 300 at least partially installed in the housing 200. The water softener 100 can be used in capacitive deionization applications, such as in a dishwasher, for softening water.

Referring to fig. 1 to 5, the housing 200 includes a base 201 and a cover 202 engaged with the base 201. Referring to fig. 4, in the embodiment illustrated in the present application, the base 201 has a bottom wall 203 and a receiving space 204 above the bottom wall 203 for receiving at least a portion of the capacitive deionization electrode sheet assembly 300. Referring to fig. 5, the bottom wall 203 is provided with a first mounting hole 2031, a second mounting hole 2032, a third mounting hole 2033 and a fourth mounting hole 2034. In one embodiment of the present application, the mounting holes are threaded holes.

Referring to fig. 8, the capacitive deionization electrode sheet assembly 300 includes a plurality of electrode sheets including at least one first electrode sheet 1 and at least one second electrode sheet 2 stacked with the first electrode sheet 1. And a circulation channel for water to flow through is formed between the first electrode plate 1 and the second electrode plate 2 adjacent to the first electrode plate 1. The first electrode sheet 1 and the second electrode sheet 2 can form more circulation channels through alternate arrangement, so that the soft water effect is improved. In one embodiment of the application, the capacitive deionizing electrode sheet assembly 300 comprises an insulating screen 5 located between the first electrode sheet 1 and the second electrode sheet 2. The insulating filter screen 5 may be made of a material having a porous structure, and when the first electrode sheet 1 and the second electrode sheet 2 are fixed together by a certain pressure, the insulating filter screen 5 is filled between the first electrode sheet 1 and the second electrode sheet 2, so as to form a flow channel for water to pass through between the first electrode sheet 1 and the second electrode sheet 2.

The first electrode plate 1 and the second electrode plate 2 may be thin graphite electrode plates, or may be made of other conductive materials. The first electrode plate 1 and the second electrode plate 2 both comprise power supply connecting parts, the power supply connecting part of the first electrode plate 1 and the power supply connecting part of the second electrode plate 2 are respectively connected with the positive electrode and the negative electrode of a direct-current power supply, and therefore an electric field can be formed between the first electrode plate 1 and the second electrode plate 2.

A first adsorption layer (not shown) for adsorbing cations (such as calcium and magnesium ions in water) is arranged on one side of the first electrode sheet 1 facing the flow channel, and a second adsorption layer (not shown) for adsorbing anions (such as chloride ions in water) is arranged on one side of the second electrode sheet 2 facing the flow channel.

When the capacitor deionization electrode plate assembly 300 is powered on, the first electrode plate 1 is connected with the negative electrode of a direct current power supply, and the second electrode plate 2 is connected with the positive electrode of the direct current power supply, at the moment, when water passes through the middle of the first electrode plate 1 and the second electrode plate 2, cations and anions in the water are respectively adsorbed on the first adsorption layer and the second adsorption layer, so that the purpose of softening the water is achieved.

When the adsorption capacity of the first adsorption layer and the second adsorption layer is saturated, the directions of the positive and negative poles of the direct-current power supply connected with the first electrode plate 1 and the second electrode plate 2 can be exchanged, that is, the first electrode plate 1 is connected with the positive pole of the direct-current power supply, and the second electrode plate 2 is connected with the positive pole of the direct-current power supply. At this moment, cations adsorbed on the first adsorption layer are separated from the first adsorption layer under the action of an electric field, the adsorption capacity of the second adsorption layer to the cations is poor, the cations are not easily adsorbed on the second adsorption layer, and therefore the cations return to water again to recover the adsorption capacity of the first adsorption layer. In the same way, the anions adsorbed on the second adsorption layer are separated from the second adsorption layer under the action of the electric field, so that the adsorption capacity of the second adsorption layer is recovered.

The number of the power supply connection parts of at least one of the first electrode sheet 1 and the second electrode sheet 2 is greater than or equal to 2. So set up, increased the power connection point, be favorable to the electric field to distribute more evenly between first electrode slice 1 and second electrode slice 2 to be favorable to improving soft water effect. In the embodiment illustrated in the present application, the number of power supply connection portions of the first electrode sheet 1 and the number of power supply connection portions of the second electrode sheet 2 are both equal to or greater than 2.

As shown in fig. 9, the power connection portion of the first electrode sheet 1 includes a first power connection portion 11 and a second power connection portion 12, wherein the first power connection portion 11 and the second power connection portion 12 are used for connecting a negative electrode of a dc power supply. In the illustrated embodiment of the present application, the first power supply connection portion 11 and the second power supply connection portion 12 are located on both sides of the first electrode sheet 1. In the embodiment illustrated in the present application, the first electrode sheet 1 includes a first main body portion 13 that is substantially rectangular, the first power supply connecting portion 11 and the second power supply connecting portion 12 both protrude from the first main body portion 13, the first power supply connecting portion 11 is located in the upper right corner of the rectangle, and the second power supply connecting portion 12 is located in the lower left corner of the rectangle. That is, the first power supply connection portion 11 and the second power supply connection portion 12 are arranged along a diagonal direction of the first main body portion 13, and the diagonal direction of the first main body portion 13 is substantially overlapped with the diagonal direction or deviated by a small angle, for example, 10 ° or less.

As shown in fig. 10, the power connection portion of the second electrode sheet 2 includes a third power connection portion 21 and a fourth power connection portion 22, wherein the third power connection portion 21 and the fourth power connection portion 22 are used for connecting the positive electrode of the dc power supply. In the embodiment illustrated in the present application, the third power supply connection portion 21 and the fourth power supply connection portion 22 are located on both sides of the second electrode sheet 2. In the embodiment illustrated in the present application, the second electrode sheet 2 includes a second main body portion 23 having a substantially rectangular shape, the third power supply connecting portion 21 and the fourth power supply connecting portion 22 both protrude from the second main body portion 23, the third power supply connecting portion 21 is located at the upper left corner of the rectangular shape, and the fourth power supply connecting portion 22 is located at the lower right corner of the rectangular shape. That is, the third power supply connection portion 21 and the fourth power supply connection portion 22 are arranged along a diagonal direction of the second main body portion 23, and the diagonal direction of the second main body portion 23 is substantially overlapped with the diagonal direction or deviated by a small angle, for example, by 10 ° or less. Referring to fig. 11, in the embodiment shown in the present application, the first power connection portion 11 is aligned with the fourth power connection portion 22 along a first straight line X1, the second power connection portion 12 is aligned with the third power connection portion 21 along a second straight line X2, and the first straight line X1 is parallel to the second straight line X2.

Referring to fig. 6 to 8, the first body portion 13 and the second body portion 23 are aligned with each other in the stacking direction; the first power connection portion 11 and the third power connection portion 21 are located at one side of the capacitive deionizing electrode sheet assembly 300, and the second power connection portion 12 and the fourth power connection portion 22 are located at the other side of the capacitive deionizing electrode sheet assembly 300.

In the illustrated embodiment of the present application, the first electrode sheet 1 and the second electrode sheet 2 have a plurality of numbers, respectively, and are stacked on each other, wherein all the first power supply connection portions 11 are stacked together in the stacking direction, all the second power supply connection portions 12 are stacked together in the stacking direction, all the third power supply connection portions 21 are stacked together in the stacking direction, and all the fourth power supply connection portions 22 are stacked together in the stacking direction. For better power connection, all the first power connection portions 11 are electrically connected together, all the second power connection portions 12 are electrically connected together, all the third power connection portions 21 are electrically connected together, and all the fourth power connection portions 22 are electrically connected together.

In the illustrated embodiment of the present application, all of the first power supply connection portions 11 are provided with the first through holes 111, all of the second power supply connection portions 12 are provided with the second through holes 121, all of the third power supply connection portions 21 are provided with the third through holes 211, and all of the fourth power supply connection portions 22 are provided with the fourth through holes 221. The capacitive deionization electrode sheet assembly 300 includes a first connector 31 inserted in the first through-hole 111, a second connector 32 inserted in the second through-hole 121, a third connector 33 inserted in the third through-hole 121, and a fourth connector 34 inserted in the fourth through-hole 221. All the first power supply connection parts 11 can be connected together through the first connecting pieces 31, that is, the first power supply connection parts 11 are connected together in series; all the second power supply connections 12 can be connected together by the second connecting member 32, i.e. the second power supply connections 12 are connected together in series; all the third power supply connection parts 21 can be connected together through the third connecting members 33, that is, the third power supply connection parts 21 are connected together in series; all fourth power supply connections 22 can be connected together by means of the fourth connection 34, i.e. the fourth power supply connections 22 are connected in series.

In the illustrated embodiment of the present application, the first connecting member 31, the second connecting member 32, the third connecting member 33, and the fourth connecting member 34 are all bolts. The first connector 31, the second connector 32, the third connector 33, and the fourth connector 34 are respectively fixed in the corresponding first mounting hole 2031, the second mounting hole 2032, the third mounting hole 2033, and the fourth mounting hole 2034, so as to fix the capacitive deionization electrode pad assembly 300 in the receiving space 204 of the base 201. It is understood that in other embodiments, the first connector 31, the second connector 32, the third connector 33, and the fourth connector 34 may be other types of elements, such as pins, etc.

Referring to fig. 7, 8 and 12, since the first electrode sheet 1 and the second electrode sheet 2 are often relatively flexible, in order to avoid adverse effects on the first power connection portion 11, the second power connection portion 12, the third power connection portion 21 and the fourth power connection portion 22 when the bolts are tightened, the capacitive deionization electrode sheet assembly 300 further includes a spacer 6 installed between the bolts and the power connection portion located at the topmost portion and closest to the corresponding bolts.

In addition, the first electrode plate 1 and the second electrode plate 2 are relatively thick after being stacked layer by layer, the first electrode plate 1 and the second electrode plate 2 need to be connected with the positive electrode and the negative electrode of a direct current power supply respectively, in the embodiment illustrated in the application, the stacked power supply connecting parts are stacked and connected in series, and then are communicated with the direct current power supply, so that the convenience of installation is improved. In addition, in the embodiment illustrated in the present application, each of the first electrode sheet 1 and the second electrode sheet 2 is provided with at least two power connection portions, which is beneficial to reducing the influence of the resistance formed by the first adsorption layer and the second adsorption layer, so that the electric field is more uniformly distributed on the surfaces of the first electrode sheet 1 and the second electrode sheet 2, and the soft water effect is improved.

Of course, in other embodiments, the number of power supply connection portions on the first and

second electrode sheets

1 and 2 may be more than two, for example, three, four, five, etc., to further improve the uniformity of the electric field distribution.

Since the power connection portions are soft and easily deformed or even broken, as shown in fig. 13, in another embodiment, the capacitive deionizing electrode sheet assembly 300 further includes a conductive clamping block 4 for clamping at least one set of power connection portions of the fourth power connection portions 22 stacked together. It is to be understood that the conductive clamping blocks 4 may be provided on both upper and lower sides of the plurality of first power supply connection parts 11, the plurality of second power supply connection parts 12, and the plurality of third power supply connection parts 21, which are stacked together, that is, each set of power supply connection parts (i.e., the stacked power supply connection parts) is clamped by the corresponding conductive clamping block 4. In the illustrated embodiment of the present application, the conductive clamping block 4 comprises a first clamping block 41 and a second clamping block 42 which are used together to clamp the at least one set of power supply connections. Due to the arrangement, on one hand, the conductive clamping block 4 can well protect the power supply connecting part, so that the electrode plate is fixed at a middle height position relative to the power supply connecting part, and the condition that the electrode plate is broken at a bent part along with the increase of the thickness is relieved; on the other hand, the conductive clamping block 4 can tightly press the stacked power supply connection parts together, thereby improving the conductivity. The conductive clamping block 4 is made of graphite or metal material. The metal material is preferably copper, and the metal material is low in cost and good in conductivity.

In the embodiments of the present application, the terms "power supply connection portion", "first power supply connection portion 11", "second power supply connection portion 12", "third power supply connection portion 21", and "fourth power supply connection portion 22" are presented, and are generic terms of various power supply connection portions when the term "power supply connection portion" is used for description. Other terms, please refer to this logic and so on.

The above embodiments are only used for illustrating the present application and not for limiting the technical solutions described in the present application, and the present application should be understood based on the description of the directions such as "up" and "down", etc. for those skilled in the art, and although the present application has been described in detail in the present application with reference to the above embodiments, those skilled in the art should understand that those skilled in the art can still make modifications or equivalent substitutions on the present application, and all technical solutions and modifications thereof that do not depart from the spirit and scope of the present application should be covered within the scope of the claims of the present application.

Claims

1. A capacitive deionization electrode sheet assembly (300) comprises a plurality of electrode sheets, wherein the plurality of electrode sheets comprise at least one first electrode sheet (1) and at least one second electrode sheet (2) stacked together with the first electrode sheet (1), and a circulation channel for water to pass through is formed between the first electrode sheet (1) and the second electrode sheet (2) adjacent to the first electrode sheet (1); one side of the first electrode plate (1) facing the flow channel is provided with a first adsorption layer for adsorbing positive ions; the method is characterized in that: the first electrode plate (1) and the second electrode plate (2) both comprise power supply connecting parts, wherein the power supply connecting part of the first electrode plate (1) is used for connecting one of a positive electrode and a negative electrode of a direct-current power supply, the power supply connecting part of the second electrode plate (2) is used for connecting the other of the positive electrode and the negative electrode of the direct-current power supply, and the number of the power supply connecting parts of at least one of the first electrode plate (1) and the second electrode plate (2) is more than or equal to 2.

2. The capacitive deionization electrode pad assembly (300) of claim 1, wherein: the number of the power supply connection parts of the first electrode plate (1) and the number of the power supply connection parts of the second electrode plate (2) are both more than or equal to 2; the power supply connecting part of the first electrode plate (1) comprises a first power supply connecting part (11) and a second power supply connecting part (12), wherein the first power supply connecting part (11) and the second power supply connecting part (12) are positioned on two sides of the first electrode plate (1); the power supply connecting part of the second electrode plate (2) comprises a third power supply connecting part (21) and a fourth power supply connecting part (22), wherein the third power supply connecting part (21) and the fourth power supply connecting part (22) are located on two sides of the second electrode plate (2).

3. The capacitive deionization electrode pad assembly (300) of claim 2, wherein: the first electrode plate (1) comprises a first main body part (13), the first power supply connecting part (11) and the second power supply connecting part (12) both protrude out of the first main body part (13), and the first power supply connecting part (11) and the second power supply connecting part (12) are distributed along the diagonal direction of the first main body part (13); the second electrode plate (2) comprises a second main body part (23), the third power supply connecting part (21) and the fourth power supply connecting part (22) both protrude out of the second main body part (23), and the third power supply connecting part (21) and the fourth power supply connecting part (22) are distributed along the diagonal direction of the second main body part (23); the first main body portion (13) and the second main body portion (23) are aligned with each other in a stacking direction.

4. A capacitive deionization electrode pad assembly (300) according to claim 3, wherein: the first power supply connection portion (11) is aligned with the fourth power supply connection portion (22) along a first straight line (X1), the second power supply connection portion (12) is aligned with the third power supply connection portion (21) along a second straight line (X2), and the first straight line (X1) is parallel to the second straight line (X2).

5. The capacitive deionization electrode pad assembly (300) of claim 2, wherein: the capacitive deionization electrode sheet assembly (300) includes a plurality of the first electrode sheets (1) and a plurality of the second electrode sheets (2), wherein all the first power supply connection portions (11) are stacked together in a stacking direction, all the second power supply connection portions (12) are stacked together in the stacking direction, all the third power supply connection portions (21) are stacked together in the stacking direction, and all the fourth power supply connection portions (22) are stacked together in the stacking direction; wherein all the first power supply connection parts (11) are electrically connected together, all the second power supply connection parts (12) are electrically connected together, all the third power supply connection parts (21) are electrically connected together, and all the fourth power supply connection parts (22) are electrically connected together.

6. The capacitive deionization electrode pad assembly (300) of claim 5, wherein: all the first power supply connection parts (11) are provided with first through holes (111), all the second power supply connection parts (12) are provided with second through holes (121), all the third power supply connection parts (21) are provided with third through holes (211), and all the fourth power supply connection parts (22) are provided with fourth through holes (221); the capacitive deionization electrode pad assembly (300) includes a first connection member (31) inserted in the first through hole (111), a second connection member (32) inserted in the second through hole (121), a third connection member (33) inserted in the third through hole (211), and a fourth connection member (34) inserted in the fourth through hole (221).

7. The capacitive deionization electrode pad assembly (300) of claim 1, wherein: one side of the second electrode plate (2) facing the flow channel is provided with a second adsorption layer for adsorbing anions; the first electrode plate (1) comprises three, four or five power supply connecting parts; the second electrode sheet (2) comprises three, four or five power supply connecting parts.

8. The capacitive deionization electrode pad assembly (300) of claim 5, wherein: the capacitive deionization electrode plate assembly (300) further comprises a conductive clamping block (4), wherein the conductive clamping block (4) is used for clamping a plurality of first power supply connecting parts (11) which are stacked together;

and/or the conductive clamping block (4) is used for clamping a plurality of second power supply connection parts (12) which are stacked together; and/or

The conductive clamping block (4) is used for clamping a plurality of stacked third power supply connecting parts (21); and/or

The conductive clamping block (4) is used for clamping a plurality of the fourth power supply connecting parts (22) which are stacked together.

9. The capacitive deionization electrode pad assembly (300) of claim 8, wherein: the conductive clamping block (4) comprises a first clamping block (41) and a second clamping block (42), wherein the first clamping block (41) is located on one side of the clamped power supply connecting part, and the second clamping block (42) is located on the other side of the clamped power supply connecting part.

10. A water softener (100) comprising a housing (200) and a capacitive deionization electrode pad assembly (300) according to any one of claims 1 to 9, the capacitive deionization electrode pad assembly (300) being at least partially mounted within a receiving space (204) formed by the housing (200).