Negative oxygen ion generating apparatus

Abstract

The application discloses a negative oxygen ion generating device, which comprises an air inlet, an air outlet and a water feeding module, a water flow diffusion module is arranged on an air duct between the air inlet and the air outlet, and the water flow diffusion module is arranged on a water outlet side of the water feeding module; and an electrolysis module is arranged on an upstream side of the water flow diffusion module, and water treated by the electrolysis module is transported to the water flow diffusion module. The water flow diffusion module greatly increases the contact area between water flow output by the electrolysis module and air, so that more negative oxygen ions are carried in air output through the air outlet, and the air output through the air outlet can be diffused to a farther distance without generating nitrogen oxides and other accompanying products consuming negative oxygen ions, so that a larger space is covered, which overcomes the technical prejudice that the amount of negative oxygen ions generated by electrolysis water cannot meet the user's demand, and has remarkable beneficial effects and economic values.

Description

Technical Field

[0001] This application belongs to the field of air purification technology, specifically relating to a negative oxygen ion generating device. Background Technology

[0002] Negative oxygen ions, hailed as "air vitamins," have the effects of settling particulate matter, neutralizing static electricity, and improving sleep. With societal progress, air purifiers that output negative oxygen ions are receiving increasing attention. However, most air purifiers on the market currently rely on corona discharge or high-voltage electric field technology to generate negative oxygen ions. This method inevitably produces ozone and nitrogen oxides during the generation of negative oxygen ions. These byproducts pose potential health risks to users and also continuously consume negative oxygen ions, resulting in a short diffusion distance and making it difficult for a single air purifier to cover a large space. Furthermore, due to the consumption of negative oxygen ions by these byproducts, the electrode area needs to be increased to output more negative oxygen ions. Therefore, this structural design faces the dilemma of not being able to simultaneously achieve high output efficiency and miniaturization of the device.

[0003] Patent application number "202120233689.9" discloses an air purifier, including a housing, a polarizing electrode, a water tank, and a fan. The housing includes a shell and an openable cover installed within it. The water tank and fan are located inside the shell. The polarizing electrode is placed in the water tank and submerged in water. An air inlet pipe and an air outlet pipe are provided in the water tank. The fan's outlet is connected to the air inlet pipe. The housing has an air inlet corresponding to the air inlet pipe and an air outlet corresponding to the air outlet pipe. However, this structural design outputs a relatively small amount of negative oxygen ions, which still cannot meet the needs of users who require a single air purifier to cover a large space.

[0004] Therefore, how to provide a negative oxygen ion generator that can cover a larger space has become an urgent problem to be solved. Utility Model Content

[0005] To address the problems existing in the prior art, this application provides a negative oxygen ion generating device. The device generates negative oxygen ions through an electrolysis module and increases the contact area between the negative oxygen ions and the air through a water flow diffusion module. This allows the negative oxygen ions output through the air outlet to diffuse over a wider area, thus possessing significant practical application value.

[0006] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0007] A negative oxygen ion generating device includes an air inlet, an air outlet, and a water supply module. A water flow diffusion module is provided on the air duct between the air inlet and the air outlet, and the water flow diffusion module is located on the water outlet side of the water supply module.

[0008] It also includes an electrolysis module located upstream of the water flow diffusion module, and the water flow processed by the electrolysis module is transported to the water flow diffusion module.

[0009] Without a water flow diffusion module, the amount of negative oxygen ions carried by the air output through the air outlet is limited due to the limited contact area between the outside air and the water flow, which cannot meet the needs of users covering a large space. This has led to the technical bias in the minds of those skilled in the art that "the amount of negative oxygen ions prepared by electrolysis of water cannot meet the needs of users".

[0010] This application prepares negative oxygen ions by treating water using an electrolysis module. During the preparation process, no byproducts such as nitrogen oxides that consume negative oxygen ions are generated, thus increasing the diffusion distance of the negative oxygen ions. Furthermore, this application also includes a water flow diffusion module that increases the contact area between the air and the water flow. With the increase in contact area, the amount of negative oxygen ions carried by the air output through the air outlet also increases significantly, covering a larger space. This overcomes the technical biases of existing technologies and has significant beneficial effects.

[0011] On the other hand, if this application wishes to further increase the amount of negative oxygen ions output, multiple electrolysis modules can be connected in parallel to simultaneously process the water flow from the water delivery module. Compared to the increase in electrode area required in air electrolysis, the existing space of the negative oxygen ion generator in this application can accommodate the additional multiple electrolysis modules. Furthermore, the negative oxygen ions output by these electrolysis modules can fully contact the air through the water flow diffusion module and are ultimately delivered to the external environment through the air outlet, thus regulating the external air quality. Therefore, with the water flow diffusion module included, the amount of negative oxygen ions output by this application is significantly increased compared to existing technologies within the same volume, demonstrating significant practical application value.

[0012] Furthermore, the water flow diffusion module blocks part of the area of ​​the air duct, and a driving module is provided in the air duct to drive the water flow diffusion module to form a pressure difference on both sides;

[0013] The water delivery module has at least one diffuser port facing the water flow diffusion module on its outlet side.

[0014] Furthermore, the water flow diffusion module is closed or partially closed to form a hollow area, and the diffusion port is located inside the water flow diffusion module, or located within the hollow area with the opening facing the inside of the water flow diffusion module.

[0015] Furthermore, the water flow diffusion module is a spray component, and the diffuser of the spray component faces into the air duct;

[0016] The air duct is equipped with a drive module that drives the airflow.

[0017] Furthermore, the electrolysis space of the electrolysis module includes a cathode chamber with a cathode and an anode chamber with an anode, and the cathode chamber and the anode chamber are connected.

[0018] The electrolysis module is directly installed inside the water delivery module, and / or installed on the pipeline connecting the water delivery module and the water flow diffusion module.

[0019] Furthermore, the electrolysis space is divided into a cathode chamber and an anode chamber by a first partition, and a connection port connecting the cathode chamber and the anode chamber is provided through the first partition. Alternatively, a first gap is provided between the first partition and the peripheral wall of the electrolysis space, and the first gap connects the cathode chamber and the anode chamber.

[0020] Furthermore, the electrolysis space of the electrolysis module is divided into a cathode chamber with a cathode and an anode chamber with an anode by a first partition, and the water inlet and outlet of the electrolysis space are both located in the anode chamber;

[0021] The cathode chamber is provided with a hydrogen outlet, which connects the cathode chamber to the outside of the anode chamber.

[0022] The first separator is equipped with a gas check structure.

[0023] Furthermore, the electrolysis module is installed on the pipeline connecting the water delivery module and the water flow diffusion module.

[0024] Furthermore, the electrolysis space of the electrolysis module is divided into a cathode chamber with a cathode and an anode chamber with an anode by a first partition. Both the cathode chamber and the anode chamber are provided with an inlet and an outlet.

[0025] The water flow diffusion module is located downstream of the outlet of the anode chamber.

[0026] Furthermore, it also includes a humidity-sensitive element, which controls the control circuit of the electrolysis module to conduct when the electrolysis module is filled with water.

[0027] After adopting the above technical solution, this application has the following beneficial effects:

[0028] 1. The negative oxygen ion generating device described in this application greatly increases the contact area between the water output from the electrolysis module and the air through the water flow diffusion module, thereby enabling the air output through the air outlet to carry more negative oxygen ions. Furthermore, since it does not generate nitrogen oxides or other byproducts that consume negative oxygen ions, the air output through the air outlet of this application can diffuse a greater distance, thereby covering a larger space. This overcomes the technical bias in the prior art that "the amount of negative oxygen ions generated by electrolysis of water is too low to meet user needs," and has significant beneficial effects and economic value.

[0029] 2. The negative oxygen ion generating device described in this application uses a water flow diffusion module in a closed or semi-closed form. Under the action of the driving module, outside air enters the hollow area of ​​the water flow diffusion module, further increasing the contact area between the outside air and the water flow diffusion module. Moreover, under this structural form, even if several electrolysis modules are set in parallel to process the water flow output from the water supply module, it can still ensure that the generated negative oxygen ions are in full contact with the air, thereby ensuring that the air output from the air outlet carries sufficient negative oxygen ions.

[0030] 3. In the negative oxygen ion generating device described in this application, the electrolysis space of the electrolysis module is divided into a cathode chamber and an anode chamber by a first separator. Under the blocking effect of the first separator, compared with the case where the cathode chamber and the anode chamber are completely connected, the amount of negative oxygen ions carried in the air output through the air outlet is further increased under this structural form. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of an explosion of the negative oxygen ion generating device of this application;

[0034] Figure 2 This is a cross-sectional view of the negative oxygen ion generating device of this application;

[0035] Figure 3 This is a schematic diagram of the explosion of the negative oxygen ion generating device of this application from another angle;

[0036] Figure 4 A schematic diagram of a diffuser located in another position;

[0037] Figure 5 This is a schematic diagram of an electrolysis module in one embodiment of this application;

[0038] Figure 6 This is a cross-sectional view of the electrolysis module in one embodiment of this application;

[0039] Figure 7 This is a schematic diagram of the electrolysis module in another embodiment of this application;

[0040] Figure 8 This is a cross-sectional view of the electrolysis module in another embodiment of this application;

[0041] Figure 9 This is a partially enlarged schematic diagram of Part A of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Air inlet; 2. Air outlet; 3. Water supply module; 4. Electrolysis module; 41. Anode chamber; 42. Anode; 43. Cathode chamber; 44. Cathode; 45. First separator; 46. Water inlet; 47. Water outlet; 48. Hydrogen outlet; 5. Drive module; 6. Water flow diffusion module; 61. Diffusion port; 7. Water return port; 8. First gap; 9. Second gap; 10. Third gap. Detailed Implementation

[0044] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0045] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0046] Existing technologies for producing negative oxygen ions typically employ corona discharge or high-voltage electric field techniques. However, these technologies generate byproducts such as ozone and nitrogen oxides, which continuously deplete the negative oxygen ions, resulting in a short diffusion distance and insufficient capacity to meet the demand for negative oxygen ions in larger spaces. To overcome this, existing technologies have produced negative oxygen ions through water electrolysis, but the actual output of negative oxygen ions is relatively small and still cannot meet user needs.

[0047] Specifically, negative oxygen ions were monitored at a distance of 7.5 meters from the air outlet using a WST-1680 air ion detector manufactured by Beijing Wositeng Technology Co., Ltd. The negative oxygen ion concentration generated through corona discharge or high-voltage electric field technology was only 1200 ions / cm³. 3 While the output of negative oxygen ions through water electrolysis is somewhat increased, it is still only around 1800 ions / cm³. 3 about.

[0048] In view of this, such as Figure 1-9 As shown, this application provides a negative oxygen ion generating device, including an air inlet 1, an air outlet 2, and a water delivery module 3. An air duct is formed between the air inlet 1 and the air outlet 2. A water flow diffusion module 6 is provided on the air duct and is located on the water outlet side of the water delivery module 3. The water delivery module 3 can be configured as a water storage device in the form of a water tank or as a water pipe connected to a tap water pipe to directly deliver water.

[0049] It also includes an electrolysis module 4, which is located upstream of the water flow diffusion module 6. The water flowing from the water supply module 3 is processed in the electrolysis module 4 and transformed into a water flow carrying negative oxygen ions. This portion of the water then enters the water flow diffusion module 6. With the increased contact area with the air, the air output through the air outlet 2 carries more negative oxygen ions, thus achieving coverage of a larger space.

[0050] Regarding the water flow diffusion module 6, it can be implemented using spraying, atomization, flow guidance, or other methods to increase the contact area between the water flow and the air.

[0051] In one embodiment of this application, the water flow diffusion module 6 is a spray element, with the diffuser 61 of the spray element facing into the air duct. For example, the water flow diffusion module 6 can adopt the structural form of an atomizing nozzle, a spray nozzle, etc.

[0052] In this structural configuration, outside air enters the duct through the air inlet 1 and comes into contact with the water flow output through the diffuser 61. At this time, the contact area between the water flow and the outside air is significantly increased, and more negative oxygen ions can be carried out through the air outlet 2 to the outside, thus adjusting the outside air quality.

[0053] Accordingly, in this embodiment, a drive module 5 for driving airflow needs to be installed in the air duct, such as a fan structure installed at the air outlet 2 that drives airflow in the air duct through suction.

[0054] Alternatively, in another embodiment of this application, the water flow diffusion module 6 increases the diffusion area between the water flow and the air by guiding the flow. Under the action of a power module such as a water pump, the water flow in the water delivery module 3 is sent into the electrolysis module 4 to participate in electrolysis. The water flow carrying negative oxygen ions after being treated by the electrolysis module 4 is then transported to the water flow diffusion module 6. Under the guiding effect of the water flow diffusion module 6 and the action of gravity or the water pump, this part of the water flow gradually flows back to the water delivery module 3 in the form of a water storage device along the water flow diffusion module 6 and through the return water port 7. During the flow of water, a water curtain-like effect is formed, which significantly increases the contact area between the water flow and the air, thereby making the air output through the air outlet 2 carry more negative oxygen ions.

[0055] Specifically, the water flow diffusion module 6 can be set as a cylinder and coaxially with the air duct. In this case, one end of the water flow diffusion module 6 is the air inlet 1, and the other end is the air outlet 2. After the outside air enters the air duct through the air inlet 1, it moves along the axis of the water flow diffusion module 6 towards the air outlet 2. During this process, the water flow output from the electrolysis module 4 is continuously transported to the end of the water flow diffusion module 6, and then flows back into the water delivery module 3 under the action of a water pump or gravity. That is, by forming a water curtain, the contact area between the air and the water flow is increased, thereby increasing the negative oxygen ion content of the air output through the air outlet 2.

[0056] Alternatively, to further increase the base area of ​​water flow and air, the water flow diffusion module 6 needs to block part of the air duct area. For example, while blocking the air duct, the water flow diffusion module 6 is also equipped with several air passage holes. After the outside air enters the air duct through the air inlet 1, it is blocked by the rest of the water flow diffusion module 6 and enters the air duct on the other side of the water flow diffusion module 6 through the air passage holes. During the process of passing through the air passage holes, it comes into full contact with the water curtain at the air passage holes and adsorbs a large number of negative oxygen ions. The air carrying negative oxygen ions is finally discharged to the outside through the air outlet 2 to regulate the outside air.

[0057] Correspondingly, at this time, a drive module 5 that drives the water flow diffusion module 6 to form a pressure difference on both sides needs to be installed in the air duct, such as a fan structure installed at the air outlet 2.

[0058] When the air inlet 1 and the air outlet 2 are on the same straight line, that is, when the air inlet direction and the air outlet direction are the same, the water flow diffusion module 6 can be set perpendicular to the straight line between the air inlet 1 and the air outlet 2.

[0059] Or, such as Figure 1As shown, when the air inlet 1 and the air outlet 2 are not on the same straight line, that is, when there is an angle between the air inlet direction and the air outlet direction, the water flow diffusion module 6 can be closed or partially closed to form a hollow area. Under the action of the drive module 5, the outside air enters the hollow area through several air passages on the water flow diffusion module 6. During this process, it comes into full contact with the water flow and adsorbs a large number of negative oxygen ions. Finally, the air carrying negative oxygen ions is discharged to the outside through the air outlet 2, thus regulating the outside air.

[0060] Furthermore, when the water flow diffusion module 6 adopts a structure with several air passages, such as sponge or polyester fiber mesh, it can also adopt a double-layer structure, such as... Figure 3 As shown, at this time, the diffuser 61 can be set between the inner and outer layers of the water flow diffusion module 6. However, under this structure, the water flow output by the electrolysis module 4 diffuses in both the inner and outer layers of the water flow diffusion module 6. The outside air first adsorbs the negative oxygen ions of the outer layer, and then adsorbs the negative oxygen ions of the inner layer, and is finally discharged through the air outlet 2.

[0061] like Figure 4 As shown, if the diffuser 61 is placed in the hollow area with the opening facing the inside of the water flow diffusion module 6, most of the water flow output from the electrolysis module 4 will diffuse on the inner layer of the water flow diffusion module 6. The outside air can adsorb more negative oxygen ions in the inner layer. Since the inner layer is closer to the air outlet 2, the unnecessary consumption of negative oxygen ions is reduced. Therefore, this way of setting the diffuser 61 can make the air output from the air outlet 2 carry more negative oxygen ions, thus enabling it to cover a larger space.

[0062] Furthermore, since this structural design results in a large contact area between air and water, several electrolysis modules 4 can be connected in parallel to fully utilize this contact area. In addition, if it is necessary to further increase the contact area between air and water, several water diffusion modules 6 can be nested together. That is, for the outermost, closed-off water diffusion module 6, several layers of water diffusion modules 6 are still provided in its hollow area.

[0063] Furthermore, considering that the water flow speed on the water diffusion module 6 is relatively fast under the action of gravity or a water pump, the contact time between the air and the water flow is short, making it impossible to adsorb more negative oxygen ions. Therefore, in this embodiment, the water diffusion module 6 preferably uses a water-absorbing material. With this structural form, the water flow is more evenly distributed on the water diffusion module 6, the contact time between the air and the water flow is longer, and thus more negative oxygen ions can be carried and output through the air outlet 2.

[0064] Regarding the electrolysis module 4, in one embodiment of this application, the electrolysis space of the electrolysis module 4 includes a cathode chamber 43 with a cathode 44 and an anode chamber 41 with an anode 42, and the cathode chamber 43 and the anode chamber 41 are connected. In this structural form, the electrolysis module 4 can be directly installed in the water delivery module 3 in the form of a water storage device, or it can be installed on the pipeline connecting the water delivery module 3 and the water flow diffusion module 6.

[0065] When the electrolysis module 4 is installed inside the water delivery module 3, considering that the electrolysis module 4 only processes the water flow around it, and the negative oxygen ions generated thereafter gradually diffuse to the other water flows, the electrolysis module 4 is preferably installed near the pipeline connecting the water flow diffusion module 6 to ensure that the water flow entering the water flow diffusion module 6 through the pipeline is all water flow treated by the electrolysis module 4; or, the electrolysis module 4 is preferably installed on the pipeline connecting the water delivery module 3 and the water flow diffusion module 6 to ensure that the water flow delivered to the water flow diffusion module 6 is all water flow treated by the electrolysis module 4.

[0066] When the cathode chamber 43 and the anode chamber 41 are fully connected, taking the closed-type water flow diffusion module 6 as an example, the air outlet 2 at a distance of 7.5 meters is monitored using a WST-1680 air ion detector produced by Beijing Wositeng Technology Co., Ltd. Compared to the negative oxygen ions generated through corona discharge or high-voltage electric field technology, which only reach 1200 ions / cm³, the actual concentration is significantly higher. 3 Around 1800 negative oxygen ions / cm³ are output through water electrolysis. 3 In this embodiment, the negative oxygen ion output through the synergistic effect of electrolysis module 4 and water flow diffusion module 6 can be increased to 7000 ions / cm³. 3 about.

[0067] The electrolysis space of the electrolysis module 4 can also be divided into a cathode chamber 43 with a cathode 44 and an anode chamber 41 with an anode 42 by a first partition 45. In order to achieve communication between the cathode chamber 43 and the anode chamber 41, a connection port for communicating between the cathode chamber 43 and the anode chamber 41 can be provided through the first partition 45. Alternatively, a first gap 8 can be provided between the first partition 45 and the peripheral wall of the electrolysis space to communicate between the cathode chamber 43 and the anode chamber 41.

[0068] Specifically, considering the correlation between negative oxygen ions and anode products, when a connection port connecting the cathode chamber 43 and the anode chamber 41 is provided on the first separator 45, the water inlet 46 of the electrolysis module 4 can be located in the cathode chamber 43, and the water outlet 47 can be located in the anode chamber 41. In this case, the water carrying negative oxygen ions is closer to the water flow diffusion module 6, which can reduce the unnecessary consumption of negative oxygen ions to a certain extent. In this case, the first separator 45 needs to be set as an anion channel such as an anion exchange membrane. Alternatively, when the water inlet 46 is located in the anode chamber and the water outlet 47 is located in the cathode chamber 43, the first separator 45 needs to be set as a cation channel such as a cation exchange membrane.

[0069] Alternatively, considering the complexity of setting a connection port on the first partition 45, to achieve communication between the cathode chamber 43 and the anode chamber 41, such as... Figure 8 and 9 As shown, a first gap 8 can be provided between the first separator 45 and the peripheral wall of the electrolysis space to connect the cathode chamber 43 and the anode chamber 41.

[0070] Correspondingly, the anode chamber 41 is connected to the first gap 8 through the second gap 9, wherein the second gap 9 may be disposed between the anode 42 and the first partition 45, and / or disposed between the anode 42 and the peripheral wall of the anode chamber 41;

[0071] The cathode chamber 43 is connected to the first gap 8 through the third gap 10, wherein the third gap 10 may be disposed between the cathode 44 and the first partition 45, and / or disposed between the cathode 44 and the peripheral wall of the cathode chamber 43.

[0072] Specifically, such as Figure 7-9 As shown, in this embodiment, the inlet 46 and outlet 47 of the electrolysis module 4 are both located on one side of the anode chamber 41, and a water-blocking structure is provided on the first partition 45.

[0073] During the electrolysis process, the water in the water supply module 3 flows into the anode chamber 41 through the inlet 46 and participates in electrolysis at the anode 42. The generated hydrogen ions and other cations then enter the cathode chamber 43 through the first separator 45 and continue to participate in electrolysis at the cathode 44, generating hydrogen gas and other cathode products.

[0074] The specific reaction formula is as follows:

[0075] At anode 42: 4H2O-4e - →O2;+2H2O+4H + ;

[0076] Cathode 44: 2H + +2e - →H2;;

[0077] Since no additional water inlet 46 is provided at the cathode chamber 43, and the cathode chamber 43 is separated from the anode chamber 41 by the first partition 45, the water volume in the cathode chamber 43 is limited during the electrolysis process. To prevent the cathode 44 from burning dry during electrolysis, a first gap 8 is provided between the first partition 45 and the peripheral wall of the electrolysis space in this invention. The cathode chamber 43 and the anode chamber 41 are connected through the first gap 8, allowing water from the anode chamber 41 to enter the cathode chamber 43 through the first gap 8. This water flow can prevent the cathode 44 from burning dry.

[0078] Furthermore, it should be noted that in this utility model, the first separator 45 can restrict most of the water flow in the anode chamber 41 from diffusing into the cathode chamber 43. However, since the hydrogen ions and other cations generated at the anode 42 need to pass through the first separator 45 to enter the cathode chamber 43 and continue to participate in electrolysis, and water is required as a medium during the migration of ions, the first separator 45 can allow ions to carry some water through during the migration process. This water can also prevent the cathode 44 from drying out during the electrolysis process.

[0079] The first separator 45 preferably also has a gas check structure, such as a cation exchange membrane, a polytetrafluoroethylene (PTFE) composite membrane, a multilayer hydrophobic coating membrane, or other structural forms.

[0080] The working principle of the polytetrafluoroethylene composite membrane is to disperse the perfluorosulfonic acid membrane in the porous polytetrafluoroethylene framework, and to use the hydrophobicity and density of polytetrafluoroethylene to block various gases, including hydrogen.

[0081] The working principle of the multilayer hydrophobic coating membrane is to coat the surface of the cation exchange layer with an ultrathin polyvinylidene fluoride layer to block liquid water and gas from passing through.

[0082] The greater the distance between the cathode 44 and the anode 42, the higher the voltage required for electrolysis. As the electrolysis voltage increases, products such as ozone, which consume negative oxygen ions, may be generated. Therefore, in this embodiment, the cathode 44, the first separator 45, and the anode 42 are preferably stacked. Correspondingly, the cathode 44 and the anode 42 also need to have several through-holes to allow hydrogen and oxygen to escape. Ions generated during electrolysis can also directly enter adjacent chambers through the through-holes and the first separator 45.

[0083] Furthermore, considering that ions require water as a medium during migration, the first separator 45 will swell during its transmembrane diffusion. In this embodiment, by symmetrically arranging the vent holes of the cathode 44 and anode 42 on both sides of the first separator 45, when the first separator 45 swells, it can symmetrically swell into the vent holes on both sides, thereby reducing the extent of unilateral swelling and extending its service life.

[0084] The air outlet 2, located 7.5 meters away, was monitored using a WST-1680 air ion detector manufactured by Beijing Wositeng Technology Co., Ltd. The concentration of negative oxygen ions was only 1200 ions / cm³, compared to the concentration generated by corona discharge or high-voltage electric field technology. 3 Around 1800 negative oxygen ions / cm³ are output through water electrolysis. 3 In this embodiment, the negative oxygen ions output through the synergistic action of electrolysis module 4 and water flow diffusion module 6 reach as high as 26,000 per cm³. 3 about.

[0085] In another embodiment of this application, the electrolysis space of the electrolysis module 4 is divided into a cathode chamber 43 with a cathode 44 and an anode chamber 41 with an anode 42 by a first separator 45. In this embodiment, the cathode chamber 43 and the anode chamber 41 are not connected. Therefore, both the cathode chamber 43 and the anode chamber 41 need to be provided with independent inlets 46 and outlets 47. Since the generation of negative oxygen ions is related to the anode 41, the water flow diffusion module 6 needs to be located downstream of the outlet 47 of the anode chamber to ensure that the air in contact with the water flow can carry sufficient negative oxygen ions.

[0086] Alternatively, a hydrogen outlet 48 can be provided at the cathode chamber 43, connecting the cathode chamber 43 to the outside of the anode chamber 41. In this configuration, the inlet 46 and outlet 47 can be located only on one side of the anode chamber 41, and the dry burning of the cathode 44 can be prevented by the water flow carried by ions during migration. The first partition 45 needs to be equipped with a gas check valve structure accordingly.

[0087] Accordingly, since a hydrogen outlet 48 is provided, the electrolysis module 4 is not suitable to be directly installed in the water delivery module 3. Therefore, in this embodiment, the electrolysis module 4 is preferably installed on the pipeline connecting the water delivery module 3 and the water flow diffusion module 6.

[0088] The first separator 45 can be configured as an ultrafiltration membrane, a hydrophilic cation exchange membrane, a negatively charged nanofiltration membrane, or a mixed matrix membrane, etc., which allows water to flow through while blocking the diffusion of hydrogen generated at the cathode 44 across the membrane.

[0089] The hydrophilic cation membrane adsorbs water molecules through hydrophilic groups such as sulfonic acid groups to form a hydration layer, providing a transport channel for cations and water. Non-polar gas molecules are blocked because they cannot form hydrogen bonds or electrostatic interactions with the hydration layer, thus achieving the function of gas anti-reverse flow.

[0090] Negatively charged nanofiltration membranes have a negatively charged surface, and their pore size can block gases while allowing cations and water to pass through. By incorporating hydrophilic groups, a dynamic hydration layer can be formed, enhancing water transport. Gases, due to their hydrophobicity, nonpolarity, and low solubility, are trapped, thus achieving a gas anti-reverse function.

[0091] The hybrid matrix membrane uses organic polymers as the matrix and inorganic nanomaterials such as zeolite and metal-organic frameworks (MOFs) are uniformly dispersed inside. The surface charge and hydrophilicity of the materials can promote the transport of cations and water, and the gas anti-reverse function can be achieved by controlling the pore size distribution.

[0092] Furthermore, the first separator 45 can also be configured as a cation exchange membrane, a hydrophobic MOF (metal-organic framework) membrane, a hydrophobic COF (covalent organic framework) membrane, or a hydrophobic mixed matrix membrane, etc. This structure can allow hydrogen ions to carry some water into the cathode chamber 43, preventing the cathode 44 from burning dry, and can also achieve a water-blocking function. Among them, the cation exchange membrane is preferably a proton exchange membrane.

[0093] Hydrophobic MOF and COF membranes form low surface energy interfaces by introducing hydrophobic functional groups such as fluorinated groups, which block the permeation of polar water molecules and gases; their pore surfaces are modified with negatively charged groups to promote cation migration.

[0094] The hydrophobic hybrid matrix membrane uses hydrophobic polymers such as polyvinylidene fluoride as the matrix and embeds hydrophilic inorganic nanoparticles such as zeolite and sulfonated carbon nanotubes. It forms a continuous ion transport channel through hydrophilic fillers, allowing cations and their hydrated ions to pass through, while preventing gas diffusion across the membrane through the hydrophobic matrix.

[0095] In this embodiment, the cathode 44, the first separator 45, and the anode 42 are preferably stacked to reduce the electrolysis voltage required for ion migration. Correspondingly, the cathode 44 and the anode 42 are each provided with several vent holes to allow hydrogen and oxygen to escape. Ions generated during electrolysis can directly enter adjacent chambers through the vent holes and the first separator 45.

[0096] In addition, in this embodiment, the vent holes of the cathode 44 and the anode 42 are symmetrically arranged on both sides of the first separator 45, so that when the first separator 45 swells, it can symmetrically expand into the vent holes on both sides, thereby reducing the extent of its unilateral expansion and extending its service life.

[0097] The air outlet 2, located 7.5 meters away, was monitored using a WST-1680 air ion detector manufactured by Beijing Wositeng Technology Co., Ltd. The concentration of negative oxygen ions was only 1200 ions / cm³, compared to the concentration generated by corona discharge or high-voltage electric field technology. 3 Around 1800 negative oxygen ions / cm³ are output through water electrolysis. 3In this embodiment, the negative oxygen ion output through the synergistic effect of electrolysis module 4 and water flow diffusion module 6 can be increased to 16,000 ions / cm³. 3 about.

[0098] Furthermore, in this embodiment, the diffusion capacity of negative oxygen ions generated by corona discharge or high-voltage electric field technology and negative oxygen ions generated by water electrolysis was monitored. Near the air outlet 2, the negative oxygen ion concentrations generated by both methods were 25 million / cm³. 3 Left and right and 50 million / cm 3 about.

[0099] However, at a distance of 75cm from the air outlet, the number of negative oxygen ions generated by corona discharge or high-voltage electric field technology is 25 million / cm². 3 Rapidly decreased to 800,000 / cm 3 While the output of negative oxygen ions is around 2.6 million / cm³, in this embodiment, the output can still be maintained at 2.6 million / cm³. 3 Therefore, with the synergistic effect of the electrolysis module 4 and the water flow diffusion module 6, the negative oxygen ions output from the air outlet 2 in this embodiment can cover a larger space.

[0100] It should be noted that the above comparison was conducted under the condition of negative oxygen ion generating devices of the same volume. For devices that generate negative oxygen ions through corona discharge or high-voltage electric field technology, improving the output efficiency of negative oxygen ions inevitably requires increasing the electrode area. However, as the electrode area increases, the device size also increases. Therefore, under this preparation method, it is impossible to simultaneously improve the output efficiency of negative oxygen ions and reduce the size of the device.

[0101] In this embodiment, several electrolysis modules 4 can be connected in parallel within the current device volume to generate as many negative oxygen ions as possible. Furthermore, due to the inclusion of a water flow diffusion module 6, these negative oxygen ions can fully contact the air and be transported to the external environment through the air outlet 2, thus adjusting the external air quality. The aforementioned comparison result of 50 million / cm³... 3 The comparison results are only for a single electrolysis module 4.

[0102] Therefore, for smaller spaces, such as the interior of a car or near an office desk, the negative ion generator of this application can still meet the negative ion demand of the space within a small volume. Furthermore, in addition to outputting sufficient negative ions, the bactericidal ability of the anode products generated during electrolysis can also inhibit the growth of bacteria in the water diffusion module 6 and the water delivery module 3 (in the form of a water storage component), thus preventing the generation of odors and ensuring that the air in contact with the water diffusion module 6, when output through the air outlet 2, does not cause secondary pollution to the outside air and affect the user experience.

[0103] On the other hand, to prevent impurities deposited during electrolysis from adhering to the electrode surface and affecting the contact between the electrode and the conductive component, at least one electrode in the chamber of this application is provided with a conductive portion extending outward through the chamber's peripheral wall. This means the conductive portion is located outside the chamber to ensure a smooth electrical connection between the conductive component and the electrode.

[0104] Specifically, the anode 42 can penetrate the peripheral wall of the anode chamber 41 and extend outward to provide a conductive part, and / or the cathode 44 can penetrate the peripheral wall of the cathode chamber 43 and extend outward to provide a conductive part.

[0105] The negative oxygen ion generator of this application is also equipped with a humidity-sensitive element to control the start and stop of the electrolysis module 4.

[0106] Specifically, when water passes through the electrolysis module 4, as the humidity increases, the humidity-sensitive element can automatically control the control circuit of the electrolysis module 4 to conduct electrolysis on the water flowing through it; when water does not pass through the electrolysis module 4, as the humidity decreases, the humidity-sensitive element can automatically control the control circuit of the electrolysis module 4 to turn off to prevent the electrodes inside from drying out.

[0107] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A negative oxygen ion generating device, characterized in that, It includes an air inlet, an air outlet, and a water supply module. A water flow diffusion module is installed on the air duct between the air inlet and the air outlet, and the water flow diffusion module is located on the water outlet side of the water supply module. It also includes an electrolysis module located upstream of the water flow diffusion module, and the water flow processed by the electrolysis module is transported to the water flow diffusion module.

2. The negative oxygen ion generating device according to claim 1, characterized in that, The water flow diffusion module blocks part of the area of ​​the air duct, and a driving module is provided in the air duct to drive the water flow diffusion module to form a pressure difference on both sides; The water delivery module has at least one diffuser port facing the water flow diffusion module on its outlet side.

3. The negative oxygen ion generating device according to claim 2, characterized in that, The water flow diffusion module is closed or partially closed to form a hollow area. The diffusion port is located inside the water flow diffusion module, or located within the hollow area with the opening facing the inside of the water flow diffusion module.

4. The negative oxygen ion generating device according to claim 1, characterized in that, The water flow diffusion module is a spray component, and the diffuser of the spray component faces into the air duct; The air duct is equipped with a drive module that drives the airflow.

5. The negative oxygen ion generating device according to any one of claims 1-4, characterized in that, The electrolysis space of the electrolysis module includes a cathode chamber with a cathode and an anode chamber with an anode, and the cathode chamber and the anode chamber are connected. The electrolysis module is directly installed inside the water delivery module, and / or installed on the pipeline connecting the water delivery module and the water flow diffusion module.

6. The negative oxygen ion generating device according to claim 5, characterized in that, The electrolysis space is divided into a cathode chamber and an anode chamber by a first partition. The first partition has a through-hole for connecting the cathode chamber and the anode chamber. Alternatively, a first gap is provided between the first partition and the peripheral wall of the electrolysis space, and the first gap connects the cathode chamber and the anode chamber.

7. The negative oxygen ion generating device according to any one of claims 1-4, characterized in that, The electrolysis space of the electrolysis module is divided into a cathode chamber with a cathode and an anode chamber with an anode by a first partition. The water inlet and water outlet of the electrolysis space are both located in the anode chamber. The cathode chamber is provided with a hydrogen outlet, which connects the cathode chamber to the outside of the anode chamber. The first separator is equipped with a gas check structure.

8. The negative oxygen ion generating device according to claim 7, characterized in that, The electrolysis module is installed on the pipeline connecting the water delivery module and the water flow diffusion module.

9. The negative oxygen ion generating device according to any one of claims 1-4, characterized in that, The electrolysis space of the electrolysis module is divided into a cathode chamber with a cathode and an anode chamber with an anode by a first partition. Both the cathode chamber and the anode chamber are provided with an inlet and an outlet. The water flow diffusion module is located downstream of the outlet of the anode chamber.

10. The negative oxygen ion generating device according to any one of claims 1-4, characterized in that, It also includes a humidity-sensitive element, which controls the control circuit of the electrolysis module to conduct when the electrolysis module is filled with water.

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