Ozone generation device and water supply device

Abstract

The utility model discloses an ozone generating device and a water supply device, the ozone generating device comprises: a housing, which is provided with a water inlet, a water outlet and an accommodating cavity communicated with the water inlet and the water outlet; the electrode assembly comprises a main electrode, an auxiliary electrode and a proton exchange membrane located between the main electrode and the auxiliary electrode; the electrode assembly is arranged in the accommodating cavity; the main electrode and the auxiliary electrode are connected with a switching circuit; the switching circuit is used for switching anodes and cathodes of the main electrode and the auxiliary electrode; the switching circuit has a first state and a second state; the ozone generation device is configured as follows: when the switching circuit is in the first state, the main electrode is a positive electrode, the auxiliary electrode is a negative electrode, and ozone can be generated; when the switching circuit is in the second state, the main electrode is the negative electrode, the auxiliary electrode is the positive electrode, and ozone is not generated. According to the invention, the safety in use can be improved, the cost is reduced, the service life of the machine is prolonged, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ozone water generation, and particularly relates to an ozone generation device and a water supply device. Background Art

[0002] Ozone is composed of three oxygen atoms and is a natural powerful oxidant and bactericide. The ozone layer in the atmosphere can absorb harmful ultraviolet rays from sunlight and protect organisms on the earth's surface. The high-purity ozone manufactured in the ozone industry replaces chlorine disinfection and is widely used in tap water treatment, bottled water, pharmaceutical process water, and food process water. Ozone has the functions of sterilization, oxidation, decolorization, deodorization, and advanced oxidation in water. When the hydroxyl groups generated by the decomposition of ozone in water have a strong oxidation ability, they can quickly decompose iron, manganese, odors, peculiar smells, bacteria, viruses, etc. in water, and can also eliminate chlorine or trihalomethanes in tap water.

[0003] At present, a relatively typical method for generating ozone is the electrolysis method. When preparing ozone water by the electrolysis method, an ozone generator is usually provided. The basic structure of the ozone generator includes an anode, a cathode, and a membrane that plays a proton exchange role in the middle. When water flows into the ozone generator, the oxygen in the water molecules can be electrolyzed and combined into ozone molecules through electrolysis. The ozone generated in this way has high purity and high content to meet the requirements of sterilization, detoxification, preservation, deodorization, bleaching, etc.

[0004] Some ozone generators are also provided in the prior art. In order to further optimize the performance of the ozone generator, it is urgent to further optimize the structure of the ozone generator. Summary of the Utility Model

[0005] Aiming at the defects existing in the prior art, an ozone generation device and a water supply device are provided in the embodiments of the utility model, which can improve the safety during use, reduce costs, extend the service life of the machine, and improve the user experience.

[0006] The specific technical solution of the embodiment of the utility model is as follows:

[0007] An ozone generation device, the ozone generation device includes:

[0008] A housing, the housing is provided with a water inlet, a water outlet, and a receiving cavity communicating the water inlet and the water outlet;

[0009] An electrode assembly, the electrode assembly includes: a main electrode, an auxiliary electrode, and a proton exchange membrane located between the main electrode and the auxiliary electrode; the electrode assembly is arranged in the receiving cavity;

[0010] The main electrode and the auxiliary electrode are connected with a switching circuit, and the switching circuit is used to switch the positive and negative poles of the main electrode and the auxiliary electrode;

[0011] The switching circuit has a first state and a second state;

[0012] The ozone generating device is configured such that when the switching circuit is in the first state, the main electrode is the positive pole and the auxiliary electrode is the negative pole, and the water flowing in from the water inlet can generate ozone to form ozone water when flowing through the main electrode and is output from the water outlet; when the switching circuit is in the second state, the main electrode is the negative pole and the auxiliary electrode is the positive pole, and the water flowing in from the water inlet does not generate ozone when flowing through the auxiliary electrode.

[0013] In a preferred embodiment, the ozone generating device includes a time control module, and the time control module is used to control the working durations of the first state and the second state.

[0014] In a preferred embodiment, the main electrode includes any one of a boron-doped diamond electrode, a tin dioxide electrode, a lead dioxide electrode, and a platinum electrode; the auxiliary electrode includes any one of a stainless steel electrode, a titanium and titanium alloy electrode, a zirconium and zirconium alloy electrode, a carbon electrode, and an oxide-coated electrode.

[0015] In a preferred embodiment, the main electrode is in the shape of a plate with a predetermined thickness, the main electrode has a first surface and a second surface along the thickness direction, and pores penetrating the first surface and the second surface are provided on the main electrode; the proton exchange membrane is a complete sheet structure.

[0016] In a preferred embodiment, the auxiliary electrode is in the shape of a plate with a predetermined thickness.

[0017] In a preferred embodiment, the second surface of the main electrode is attached to one surface of the proton exchange membrane, and the auxiliary electrode is attached to the other surface of the proton exchange membrane.

[0018] In a preferred embodiment, the ozone generating device further includes a first conductor and a second conductor, the first conductor is connected to the main electrode, the second conductor is connected to the auxiliary electrode, and the power supply module can supply power to the ozone generating device through the first conductor and the second conductor.

[0019] In a preferred embodiment, the second conductor is integrally formed with the auxiliary electrode.

[0020] In a preferred embodiment, the main electrode is a boron-doped diamond electrode. The main electrode is detachably attached to the first conductor to electrically connect the main electrode and the first conductor, and there is no mechanical connection between the main electrode and the first conductor.

[0021] In a preferred embodiment, a buffer module is provided between the main electrode and the housing. The buffer module is configured to have an adjustable compression amount.

[0022] In a preferred embodiment, the buffer module has an opening, and the space where the opening is located is disposed opposite to the first surface of the main electrode.

[0023] In a preferred embodiment, the housing includes a detachable base and an end cap, and the base and the end cap cooperate to form the accommodation cavity.

[0024] In a preferred embodiment, the water inlet is provided at any one of the following positions: on the base, on the end cap, on both the base and the end cap; the water outlet is provided at any one of the following positions: on the base, on the end cap, on both the base and the end cap.

[0025] In a preferred embodiment, the main electrode has opposite length and width directions, and the dimension of the main electrode in the length direction is greater than that in the width direction. The water inlet and the water outlet are respectively provided on both sides of the housing along the length direction.

[0026] In a preferred embodiment, the main electrode has opposite length and width directions, and the dimension of the main electrode in the length direction is greater than that in the width direction. The pores are strip-shaped holes extending along the width direction, and the number of the strip-shaped holes is multiple, and the multiple strip-shaped holes are arranged at intervals along the length direction.

[0027] A water supply device, which includes the ozone generation device as described in any one of the above.

[0028] In a preferred embodiment, the water supply device is any one of the following: a hot water device, a water purification device, a cleaning device.

[0029] In a preferred embodiment, when the water supply device is a hot water device, the ozone generation device is provided on the inlet pipeline of the hot water device;

[0030] Or, the ozone generation device is provided on the outlet pipeline of the hot water device;

[0031] Alternatively, the ozone generation device is arranged on a bypass pipeline of the hot water device, and the bypass pipeline is used to connect the water inlet pipeline and the water outlet pipeline of the hot water device.

[0032] In a preferred embodiment, the hot water device includes a housing, and the ozone generation device is arranged inside the housing or outside the housing.

[0033] The technical solution of the present utility model has the following remarkable beneficial effects:

[0034] In the embodiment of the present application, the ozone generation device is provided with a housing and a first electrode, a proton exchange membrane and a second electrode located inside the housing. When in use, when the main electrode is used as the positive electrode and the auxiliary electrode is used as the negative electrode, the water flowing in from the water inlet can generate ozone when flowing through the main electrode to form ozone water for outward output. When the main electrode is used as the negative electrode and the auxiliary electrode is used as the positive electrode, the water flowing in from the water inlet does not generate ozone when flowing through the auxiliary electrode. Thus, when the main electrode and the auxiliary electrode alternately serve as the positive electrode, only when the main electrode is the positive electrode, the ozone generation device can outwardly output ozone water. When the ozone water output section and the non-ozone water output section are combined, it is beneficial to reasonably control the concentration of the outwardly output ozone water, and greatly reduce the potential safety hazards that may be brought by excessive ozone water concentration during long-term use (such as during a bath). At the same time, when the auxiliary electrode is the positive electrode, the ozone generation device does not generate ozone. At this time, a material with a lower cost can be selected as the auxiliary electrode, which can reduce the machine cost and extend the service life of the machine, thereby better meeting the needs of users.

[0035] Referring to the following description and the accompanying drawings, specific embodiments of the present utility model are disclosed in detail, indicating the ways in which the principles of the present utility model can be adopted. It should be understood that the embodiments of the present utility model are not limited thereby in scope. Within the spirit and terms of the appended claims, the embodiments of the present utility model include many changes, modifications and equivalents. The features described and / or illustrated for one embodiment can be used in the same or similar manner in one or more other embodiments, combined with the features in other embodiments, or replace the features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present utility model in any way. Additionally, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to assist in understanding the present utility model, and do not specifically limit the shapes and proportional dimensions of the components of the present utility model. Those skilled in the art can, under the teaching of the present utility model, select various possible shapes and proportional dimensions according to specific circumstances to implement the present utility model.

[0037] Figure 1 The front view of an ozone generation device provided in an embodiment of the present application;

[0038] Figure 2 The top view of an ozone generation device provided in an embodiment of the present application;

[0039] Figure 3 The left view of an ozone generation device provided in an embodiment of the present application;

[0040] Figure 4 The structural schematic diagram of an ozone generation device provided in an embodiment of the present application;

[0041] Figure 5 is Figure 1 The A-A cross-sectional view in;

[0042] Figure 6 is Figure 5 The partial enlarged schematic diagram at B in;

[0043] Figure 7 The explosion diagram of an ozone generation device provided in an embodiment of the present application;

[0044] Figure 8 The structural schematic diagram of the first electrode in an ozone generation device provided in an embodiment of the present application;

[0045] Figure 9 The position distribution schematic diagram of an ozone generation device provided in an embodiment of the present application applied in a hot water device Figure 1 ;

[0046] Figure 10 The position distribution schematic diagram of an ozone generation device provided in an embodiment of the present application applied in a hot water device Figure 2 ;

[0047] Figure 11 The position distribution schematic diagram of an ozone generation device provided in an embodiment of the present application applied in a hot water device Figure 3 .

[0048] The reference numerals of the present application:

[0049] 100, ozone generation device;

[0050] 10, housing; 101, water inlet; 102, water outlet; 110, base; 120, end cap;

[0051] 11, main electrode; 111, first surface; 112, second surface; 113, pore;

[0052] 12, auxiliary electrode;

[0053] 13. Proton exchange membrane;

[0054] 14. First conductor; 141. First conductive column; 142. Conductive frame;

[0055] 15. Second conductor; 151. Second conductive column;

[0056] 161. Buffer module; 162. Buffer member;

[0057] 160. Opening;

[0058] 17. Mounting bracket;

[0059] 18. Screw;

[0060] 200. Hot water device;

[0061] 21. Inlet water pipeline;

[0062] 22. Outlet water pipeline;

[0063] 23. Bypass pipeline. Detailed implementation manner

[0064] Next, in combination with the accompanying drawings and specific embodiments, the technical solutions of the present invention will be described in detail. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, various equivalent forms of modification by those skilled in the art fall within the scope defined by the appended claims of this application.

[0065] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific implementation manners and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0067] The present invention provides an ozone generation device, which can improve the safety during use, reduce costs, extend the service life of the machine, and enhance the user experience.

[0068] Please refer to comprehensively Figures 1 to 8 In the embodiments of the specification of this application, an ozone generation device 100 is provided. The ozone generation device 100 may include: a housing 10, the housing 10 is provided with a water inlet 101, a water outlet 102, and a receiving cavity communicating the water inlet 101 and the water outlet 102; an electrode assembly, the electrode assembly includes: a main electrode 11, an auxiliary electrode 12, and a proton exchange membrane 13 located between the main electrode 11 and the auxiliary electrode 12; the electrode assembly is disposed in the receiving cavity; the main electrode 11 and the auxiliary electrode 12 are connected with a switching circuit, the switching circuit is used to switch the positive and negative poles of the main electrode 11 and the auxiliary electrode 12; the switching circuit has a first state and a second state; the ozone generation device 100 is configured to: when the switching circuit is in the first state, the main electrode 11 is the positive pole and the auxiliary electrode 12 is the negative pole, and the water flowing in from the water inlet 101 can generate ozone to form ozone water when flowing through the main electrode 11 and is output from the water outlet 102; when the switching circuit is in the second state, the main electrode 11 is the negative pole and the auxiliary electrode 12 is the positive pole, and the water flowing in from the water inlet 101 does not generate ozone when flowing through the auxiliary electrode 12.

[0069] In the embodiments of this application, the ozone generation device 100 may mainly include: a housing 10, and an electrode assembly disposed in the housing 10. The electrode assembly mainly includes: a main electrode 11, an auxiliary electrode 12, a proton exchange membrane 13, etc.

[0070] The following will describe this application in detail in conjunction with specific drawings and embodiments.

[0071] Please refer to in combination Figure 2 、 Figure 4 and Figure 7 , the housing 10 may include a detachable base 110 and an end cap 120. Inside the housing 10, a receiving cavity is formed by the cooperation of the base 110 and the end cap 120. The main electrode 11, the proton exchange membrane 13, and the auxiliary electrode 12 are located in the receiving cavity. Among them, the detachable connection manner between the base 110 and the end cap 120 may specifically be a threaded connection, such as a screw 18 connection. As Figure 7As shown in the figure, when the base 110 and the end cap 120 are connected by screws 18, screw holes can be evenly arranged around the end cap 120 and the base 110 respectively, and the screws 18 are used for installation through these screw holes, so as to connect the base 110 and the end cap 120. Among them, the number of the screws 18 can be different according to the specific structures of the end cap 120 and / or the base 110. For example, when the overall outer contour of the end cap 120 is rectangular or quasi-rectangular, the number of the screws 18 can be four, and the four screws 18 are distributed at the four corners of the end cap 120.

[0072] Of course, the detachable connection manner between the base 110 and the end cap 120 further includes snap connection or other forms, which are not limited to the above description. Those skilled in the art may make other changes under the inspiration of the technical essence of this application, but as long as the functions and effects achieved are the same as or similar to those of this application, they should all be covered within the protection scope of this application.

[0073] An inlet 101 and an outlet 102 are provided on the housing 10. The inlet 101 and the outlet 102 can be respectively communicated with the accommodation cavity. Among them, the inlet 101 is arranged at any one of the following positions: on the base 110, on the end cap 120, on both the base 110 and the end cap 120; the outlet 102 is arranged at any one of the following positions: on the base 110, on the end cap 120, on both the base 110 and the end cap 120.

[0074] Specifically, the inlet 101 can be arranged on the base 110, and it can be an opening formed on the base 110; or, the inlet 101 can be formed after the assembly of the base 110 and the end cap 120. For example, the inlet 101 can be a notch formed on the base 110, and / or the inlet 101 can be a notch formed on the end cap 120; or, the inlet 101 can be an opening formed on the end cap 120.

[0075] Specifically, the outlet 102 can be arranged on the base 110, and it can be an opening formed on the base 110; or, the outlet 102 can be formed after the assembly of the base 110 and the end cap 120. For example, the outlet 102 can be a notch formed on the base 110, and / or the outlet 102 can be a notch formed on the end cap 120; or, the outlet 102 can be an opening formed on the end cap 120.

[0076] In this embodiment, the main electrode 11 can be in the form of a plate with a predetermined thickness, having a first surface 111 and a second surface 112 along the thickness direction of the main electrode 11, where the second surface 112 is the surface that fits the proton exchange membrane 13. The first surface 111 is the surface relatively far from the proton exchange membrane 13.

[0077] Among them, the thickness of the main electrode 11 can vary depending on the materials used, manufacturing processes, etc., and no specific numerical limit is set in this application.

[0078] A through pore 113 is provided along the thickness direction on the main electrode 11. Among them, the proton exchange membrane 13 is a complete sheet without a hole structure. When the main electrode 11 is an anode, the pore 113 can be used to expand the perimeter of the three-phase interface between the main electrode 11, water, and the proton exchange membrane 13, improving the efficiency of the electrolysis reaction; in addition, when pores 131 are provided on the main electrode 11, it is beneficial to efficiently export the ozone water generated at the interface between the main electrode 11 and the proton exchange membrane 13 to the side away from the proton exchange membrane 13.

[0079] Among them, the shape, structure, size, distribution position, etc. of the pore 113 can vary depending on the water flow scouring direction, the structure of the main electrode 11, the performance requirements of the ozone generation device 100, etc. For example, as Figure 8 shown, the main electrode 11 can be of a rectangular structure or a quasi-rectangular structure, having opposite length and width directions. The size of the main electrode 11 in the length direction is greater than the size in the width direction. The pore 113 can be a strip-shaped hole extending along the width direction, and the number of the strip-shaped holes is multiple, and the multiple strip-shaped holes are arranged at intervals along the length direction. Among them, the strip-shaped hole can specifically be a rectangular hole with equal width, or can be a kidney-shaped hole with unequal width, etc.

[0080] When water enters the accommodation cavity from the water inlet 101, it will flow through the main electrode 11. Since the overall direction of water flow forms a certain angle with the extending direction of the pore 113, for example, approximately perpendicular, it can directly scour the pore 113, which is more conducive to carrying away the generated ozone water and outputting it to the user's water use terminal.

[0081] For the main electrode 11, a noble metal oxide layer (coating) is provided on its second surface 112 facing the proton exchange membrane 13 by deposition, and the noble metal oxide layer will be gradually consumed during use. Theoretically, the surface area of the noble metal oxide layer is proportional to its service life.

[0082] Meanwhile, for the main electrode 11 provided with pores 113, the perimeter of the pores 113 is conducive to increasing the perimeter of the three-phase interface when the main electrode 11 serves as the anode, thereby facilitating the improvement of the efficiency of the electrolysis reaction. Theoretically, the longer the perimeter of the three-phase interface increased by setting the pores 113, the better the effect of improving the efficiency of the electrolysis reaction.

[0083] Considering the service life of the main electrode 11 and the requirement for the efficiency of the electrolysis reaction when it serves as the anode, the ratio of the effective area of the main electrode 11 to its surface area can be between 15% and 95%.

[0084] In some embodiments, the auxiliary electrode 12 is in the form of a plate with a predetermined thickness. The auxiliary electrode 12 can be in a complete plate shape without any hole structures formed thereon. For a structure in the form of a complete sheet or plate, it has a simple manufacturing process and low manufacturing cost; since no additional holes need to be drilled, the number of processes can be reduced, and at the same time, the defective rate can be lowered.

[0085] For the main electrode 11 in the form of a plate and the proton exchange membrane 13 in the form of a sheet, one surface of the second surface 112 of the main electrode 11 is attached to one surface of the proton exchange membrane 13. With such an assembly, direct contact between the main electrode 11 and the proton exchange membrane 13 can be ensured. When the main electrode 11 serves as the anode, since ozone is generated at the three-phase interface of water, the proton exchange membrane 13, and the main electrode 11, after direct contact and attachment, the migration path of conductive ions is shortened, the electrolysis reaction can be accelerated, ozone can be rapidly generated, and thus the efficiency of the ozone generation device 100 in generating ozone can be effectively improved.

[0086] Among them, one surface of the second surface 112 of the main electrode 11 is attached to one surface of the proton exchange membrane 13. With such an assembly, direct surface contact between the main electrode 11 and the proton exchange membrane 13 can be formed. When surface contact is formed between the main electrode 11 and the proton exchange membrane 13, the three-phase interface of the main electrode 11 (coating), water, and the proton exchange membrane 13 is formed at the periphery where the main electrode 11, the proton exchange membrane 13, and water are in contact and around the periphery of the pores 131. Overall, the electrolysis reaction starts at the outermost side of the press fit. As the reaction time increases, the coating gradually dissolves slowly from the outside to the inside, which is conducive to extending the service life of the main electrode 11.

[0087] In addition, for the main electrode 11 provided with pores 131, during use, the perimeter of the entire periphery of the main electrode 11 coating gradually decreases, while the perimeter at the pores 131 gradually increases. The increase in the perimeter of the pores 131 can be utilized to compensate for the decrease in the perimeter of the entire periphery of the main electrode 11, which is conducive to ensuring that the main electrode 11 always has a high electrolysis reaction efficiency when it serves as the anode.

[0088] In addition, the auxiliary electrode 12 can be attached to another surface of the proton exchange membrane 13, thereby forming a structurally compact electrode assembly, which is conducive to the subsequent positioning and installation of the entire electrode assembly.

[0089] Wherein, when the main electrode 11 serves as the positive electrode and the auxiliary electrode 12 serves as the negative electrode, the water flowing in from the water inlet 101 can generate ozone when flowing through the main electrode 11 to form ozone water for outward output.

[0090] Specifically, the main electrode 11 can include any one of a boron-doped diamond electrode, a tin dioxide electrode, a lead dioxide electrode, and a platinum electrode.

[0091] The material of the main electrode 11 can be a noble metal oxide. In addition to the materials of the boron-doped diamond electrode, tin dioxide electrode, lead dioxide electrode, and platinum electrode listed above, other noble metal oxide materials for the main electrode 11 are not excluded in this application. Generally, the material of the main electrode 11 can be selected to have a long service life and relatively low cost on the premise of meeting the requirements of use reliability and safety.

[0092] When the main electrode 11 serves as the negative electrode and the auxiliary electrode 12 serves as the positive electrode, the water flowing in from the water inlet 101 does not generate ozone when flowing through the auxiliary electrode 12. Using this auxiliary electrode 12 for pole inversion can adaptively adjust the ozone water concentration output by the ozone generation device 100 to output ozone water that meets the needs of users. In addition, as the auxiliary electrode 12 for pole inversion, the corresponding material cost of the main electrode 11 is relatively low.

[0093] Specifically, the auxiliary electrode 12 can include any one of a stainless steel electrode, a titanium and titanium alloy electrode, a zirconium and zirconium alloy electrode, a carbon electrode, and an oxide-coated electrode.

[0094] The auxiliary electrode 12 can be a metal electrode, a non-metal electrode, or an oxide-coated electrode with a material different from that of the main electrode 11. Specifically, in addition to the materials such as the stainless steel electrode, titanium and titanium alloy electrode, zirconium and zirconium alloy electrode, carbon electrode, and oxide-coated electrode listed above, other materials for the auxiliary electrode 12 are not excluded in this application.

[0095] In an embodiment of the present application, when the main electrode 11 serves as the positive electrode and the auxiliary electrode 12 serves as the negative electrode, the water flowing in from the water inlet 101 can generate ozone when flowing through the main electrode 11 to form ozone water for external output. When the main electrode 11 serves as the negative electrode and the auxiliary electrode 12 serves as the positive electrode, the water flowing in from the water inlet 101 does not generate ozone when flowing through the auxiliary electrode 12. With such a setting, when the main electrode 11 and the auxiliary electrode 12 alternately serve as the positive electrode, only when the main electrode 11 serves as the positive electrode, the ozone generating device 100 can output ozone water externally. When the ozone water output section and the non-ozone water output section are combined, it is beneficial to reasonably control the concentration of the ozone water output externally, and greatly reduce the potential safety hazards caused by excessive ozone water concentration during long-term use (such as during a bath). At the same time, when the auxiliary electrode 12 serves as the positive electrode, the ozone generating device 100 does not generate ozone. At this time, a material with a lower cost can be selected as the auxiliary electrode 12, which can reduce the machine cost and extend the service life of the machine, thus better meeting the needs of users.

[0096] In an embodiment of the present application, only when the main electrode 11 serves as the positive electrode and the auxiliary electrode 12 serves as the negative electrode can ozone be generated to form ozone water for external output. The surface area of the main electrode 11 can be optimized. For example, compared with an embodiment in which ozone water can be generated when both electrodes serve as the positive electrode, the surface area of the main electrode 11 can be set to be larger than the scenario where ozone water can be generated when any one of the electrodes serves as the positive electrode. In this way, the current density on the main electrode 11 can be reduced, the loss of the main electrode 11 can be effectively slowed down, and the service life of the main electrode 11 can be more effectively and reliably extended.

[0097] In addition, since the ozone generating device 100 is in a pole-inverting state when the auxiliary electrode 12 serves as the positive electrode, an acidic environment is generated during pole inversion, which can neutralize the alkaline environment of the main electrode 11 when it serves as the positive electrode, and thus can slow down the generation of scale.

[0098] In an embodiment of the present application, a switching circuit is connected to the main electrode 11 and the auxiliary electrode 12, and the switching circuit is used to switch the positive and negative polarities of the main electrode 11 and the auxiliary electrode 12.

[0099] The ozone generating device 100 is configured as follows: when the switching circuit is in the first state, the main electrode 11 is the positive electrode and the auxiliary electrode 12 is the negative electrode; the water flowing in from the water inlet 101 can generate ozone when flowing through the main electrode 11 to form ozone water and output it from the water outlet 102; when the switching circuit is in the second state, the main electrode 11 is the negative electrode and the auxiliary electrode 12 is the positive electrode, and the water flowing in from the water inlet 101 does not generate ozone when flowing through the auxiliary electrode 12.

[0100] Specifically, the switching circuit can be arranged in various different ways. For example, the switching circuit can be arranged on the ozone generating device 100. Alternatively, the switching circuit can be separately arranged from the ozone generating device 100, for example, it can be arranged in the controller of the specific device to which the ozone generating device 100 is applied. Alternatively, the switching circuit can include multiple functional modules. For example, a first functional module, a second functional module, or more functional modules. In this application, two parts are taken as an example for illustration. Among them, the first functional module can be arranged on the ozone generating device 100, and the second functional module can be separately arranged from the ozone generating device 100. For example, it can be arranged in the controller of the specific device to which the ozone generating device 100 is applied.

[0101] Among them, one functional module in the switching circuit can be used to realize the switching of the positive and negative polarities of the main electrode 11 and the auxiliary electrode 12.

[0102] In this embodiment, the switching circuit can include two states, a first state and a second state. When the switching circuit is in different states, the polarities applied to the main electrode 11 and the auxiliary electrode 12 are opposite. Among them, when the switching circuit is in the first state, it can connect the main electrode 11 to the positive pole of the power supply module and connect the auxiliary electrode 12 to the negative pole of the power supply module. At this time, the main electrode 11 is the positive pole and the auxiliary electrode 12 is the negative pole; when the switching circuit is in the second state, it can connect the main electrode 11 to the negative pole of the power supply module and connect the auxiliary electrode 12 to the positive pole of the power supply module. At this time, the main electrode 11 is the negative pole and the auxiliary electrode 12 is the positive pole.

[0103] Among them, the specific configuration of the switching circuit can include: taking a MOS transistor and a single-pole double-throw switch as an example, or it can also be in the form of other components with switching functions. Of course, the specific configuration of the switching circuit is not limited to the above description. Those skilled in the art may make other changes under the inspiration of the technical essence of this application, but as long as the functions and effects achieved are the same or similar to those of this application, they should all be covered within the protection scope of this application. Taking the single-pole double-throw switch as an example, when its knife is located at the first connection position and the first circuit is connected, the switching circuit is in the first state; when its knife is located at the second connection position and the second circuit is connected, the switching circuit is in the second state.

[0104] Furthermore, the ozone generating device 100 includes a time control module, and the time control module is used to control the working duration of the first state and the second state. Among them, the time control module can be integrated in the switching circuit. Of course, the time control module can also be independent of the switching circuit.

[0105] In this embodiment, the time control module is used to control the working durations of the first state and the second state, that is, it can control the duration during which the main electrode 11 serves as the anode and the auxiliary electrode 12 serves as the cathode to generate ozone water, and the duration during which the main electrode 11 serves as the cathode and the auxiliary electrode 12 serves as the anode without generating ozone water. By controlling the working durations of the first state and the second state, the duration of generating ozone water and the duration of not generating ozone water can be reasonably controlled, so that the concentration of ozone water output to the user terminal can be adjusted to highly match the user's usage requirements and improve the user's usage experience.

[0106] As Figure 7 shown, in some embodiments, the ozone generating device 100 may further include a first conductor 14 and a second conductor 15. The first conductor 14 is connected to the main electrode 11, and the second conductor 15 is connected to the auxiliary electrode 12. The power supply module can supply power to the ozone generating device 100 through the first conductor 14 and the second conductor 15.

[0107] In this embodiment, in order to apply the voltage / current provided by an external power supply module to the main electrode 11 and the auxiliary electrode 12, the ozone generating device 100 is further provided with a first conductor 14 and a second conductor 15. Among them, the first conductor 14 can be used to electrically connect the power supply module to the main electrode 11, so that the power supply module can supply power to the main electrode 11; the second conductor 15 can be used to electrically connect the power supply module to the auxiliary electrode 12, so that the power supply module can supply power to the auxiliary electrode 12. The power supply module is connected to an external power source and is connected to the main electrode 11 and the auxiliary electrode 12.

[0108] Among them, the first conductor 14 may include: a conductive frame 142 and a first conductive column 141. Among them, the structure of the conductive frame 142 may be a hollow frame structure, and the outer contour thereof may be adapted to the outer contour of the main electrode 11. For example, when the outer contour of the main electrode 11 is rectangular, the conductive frame 142 may be a rectangular frame. Of course, the structure of the main electrode 11 and the specific structure of the conductive frame 142 may also be other shapes. The present application does not specifically limit their structures here. In the embodiments and drawings of the present application, mainly when the outer contour of the main electrode 11 is rectangular, the conductive frame 142 is a rectangular frame for illustration.

[0109] When the conductive frame 142 is a rectangular frame, it has opposite long sides and short sides. Among them, at least one of the long side and the short side of the rectangular frame is in contact with the main electrode 11, so that the voltage / current provided by the power supply module can be applied to the main electrode 11. A connecting portion is provided on one side of the conductive frame 142, and this connecting portion is used to connect the first conductive column 141. One end of the first conductive column 141 is connected to the connecting portion, and the other end extends out of the housing 10 to be connected to the power supply module. The external power supply module can apply voltage / current to the main electrode 11 through the first conductive column 141 and the conductive frame 142.

[0110] For the rectangular main electrode 11 and the conductive frame 142, in order to extend the contact time of the water flow with the electrode and ensure the full progress of the electrolysis reaction, the water inlet 101 and the water outlet 102 are oppositely arranged along the long side direction of the main electrode 11 and the conductive frame 142. At this time, in order to prevent the first conductive column 141 from interfering with structures such as the water inlet 101 and the water outlet 102, the first conductive column 141 can be arranged on the long side of the conductive frame 142, that is, the connecting portion can be a partial protrusion formed on the long side of the conductive frame 142.

[0111] In this embodiment, the second conductor 15 can be separately provided from the auxiliary electrode 12. When the second conductor 15 is separately provided from the auxiliary electrode 12, the specific composition and connection relationship of the second conductor 15 and the like can refer to the specific description of the first conductor 14, and the present application will not elaborate here.

[0112] As Figure 7 shown, in a specific embodiment, considering that the auxiliary electrode 12 in the embodiment of the present application is an auxiliary electrode 12 for pole inversion, the second conductor 15 can be integrally formed with the auxiliary electrode 12.

[0113] In this embodiment, the second conductor 15 is integrally formed with the auxiliary electrode 12. Such a setting can simplify the structure of the ozone generating device 100, reduce the volume of the ozone generating device 100, and compared with the embodiment in which the second conductor 15 is separately provided from the auxiliary electrode 12, the cost of the ozone generating device 100 can be further reduced, and the reliability during the use of the ozone generating device 100 can be improved.

[0114] Please refer to Figure 3 and Figure 7 . A connecting portion is provided on one side of the auxiliary electrode 12, and this connecting portion is used to connect the second conductive column 151. One end of the second conductive column 151 is connected to the connecting portion, and the other end extends out of the housing 10 to be connected to the power supply module. The external power supply module can apply voltage / current to the auxiliary electrode 12 through the second conductive column 151.

[0115] In one embodiment, the main electrode 11 is a boron-doped diamond electrode. The main electrode 11 is detachably attached to the first conductor 14 so that the main electrode 11 and the first conductor 14 are electrically connected, and there is no mechanical connection between the main electrode 11 and the first conductor 14.

[0116] In this embodiment, the main electrode 11 can be a silicon-based boron-doped diamond electrode or a boron-doped diamond electrode formed by depositing a coating on the surface of another substrate material. For a boron-doped diamond electrode, when it is used as a cathode, scale formation can be avoided by reversing the polarity, thereby extending its service life.

[0117] For a boron-doped diamond electrode, it cannot be fixedly connected by traditional mechanical connection methods such as welding or threaded connection. To ensure that the first conductor 14 can be reliably connected to the main electrode 11 without mechanical connection, so as to apply the voltage / current provided by the external power supply module to the main electrode 11, the first conductor 14 and the main electrode 11 are detachably arranged and the first conductor 14 is directly attached to the main electrode 11, thereby realizing electrical connection between the main electrode 11 and the first conductor 14.

[0118] In one embodiment, the main electrode 11 is a boron-doped diamond electrode, and a buffer module 161 is arranged between the main electrode 11 and the housing 10. The buffer module 161 is configured to have an adjustable compression amount.

[0119] In this embodiment, the main electrode 11 can be a silicon-based boron-doped diamond electrode or a boron-doped diamond electrode formed by depositing a coating on the surface of another substrate material. For a boron-doped diamond electrode, when it is used as a cathode, scale formation can be avoided by reversing the polarity, thereby extending its service life.

[0120] Taking the silicon-based boron-doped diamond electrode as an example, for a silicon-based boron-doped diamond electrode, since the main component of its material is a silicon-based material, which is a brittle material and is prone to cracking under external force. To provide limited protection for the main electrode 11 and effectively position the main electrode 11 to ensure reliable surface contact between the main electrode 11 and the proton exchange membrane 13 at all times, a buffer module 161 can be arranged between the main electrode 11 and the housing 10. For example, the buffer module 161 can be arranged between the main electrode 11 and the end cover 120. Of course, when using other brittle substrate materials as the main body to make a boron-doped diamond electrode, a buffer module 161 also needs to be arranged to achieve the same or similar technical effects.

[0121] Among them, the buffer module 161 can specifically be a structure with adjustable compression amount. During the assembly process of the end cap 120 and the base 110, by adaptively adjusting its compression amount through the buffer module 161, corresponding deformation is generated, which can ensure the reliable fitting of the first conductor 14 and the main electrode 11. It can also release excessive force generated during production, assembly, etc. through the deformation of the buffer module 161 itself, preventing it from being transmitted to the electrode and damaging the electrode. In a specific scenario, during the assembly process, the fastening force formed between the end cap 120 and the base 110 is not uniform. For example, when the end cap 120 and the base 110 are connected by screws 18, the number of turns of the screws 18 engaged may be different, and the resulting pre-tightening force is different. Since the buffer module 161 is provided, it can weaken the damaging effect of the pre-tightening force on the main electrode 11.

[0122] In addition, in some embodiments, the ozone generating device 100 may further include a mounting bracket 17. The main electrode 11 and the auxiliary electrode 12 are respectively limited on both sides of the mounting bracket 17; the buffer module 161 and the buffer member 162 are respectively fixed on both sides of the mounting bracket 17 and respectively press and limit the main electrode 11 and the auxiliary electrode 12. The mounting bracket 17 can be a rectangular frame structure, and there are limiting columns on both sides of the rectangular frame structure. The main electrode 11 and the auxiliary electrode 12 are positioned and supported by the mounting bracket 17 under the limiting action of multiple limiting columns. The mounting bracket 17 is an insulating member. For example, its material can be plastic.

[0123] Please refer to Figure 5 、 Figure 6 and Figure 7 . In a specific embodiment, the buffer module 161 is provided with an opening 160, and the space where the opening 160 is located is disposed opposite to the first surface 111 of the main electrode 11.

[0124] An opening 160 can be provided in the middle of the buffer module 161, and the space where the opening 160 is located is disposed opposite to the first surface 111 of the main electrode 11, so that the main electrode 11 provided with pores 113 cannot be completely blocked by the buffer module 161, especially the area provided with pores 113 is not blocked by the buffer module 161. When water enters through the water inlet 101, it can flow into the area of the main electrode 11 provided with pores 113 through the opening 160, thereby carrying away the ozone water with a higher concentration in the pores 113 area and outputting it to the user's water using terminal, avoiding the formation of stagnant water in the pores 113 area.

[0125] In addition, during the electrolysis reaction process, the main electrode 11 itself has a certain resistance value, which will convert a part of the electrical energy into heat energy. Taking the main electrode 11 as an example, if the main electrode 11 itself has poor heat dissipation, it may generate a large temperature rise, resulting in easy scaling and affecting its service life. In this embodiment, by using the structure of the buffer module 161 provided with the opening 160, the external water flow can be guided to the main electrode 11 at a certain angle to wash the main electrode 11, so as to effectively dissipate the heat of the main electrode 11 with flowing water and extend its service life.

[0126] Among them, the specific structure of the buffer module 161 can be adapted to the structure of the first conductor 14. For example, when the structure of the first conductor 14 is a rectangular frame, the buffer module 161 can also be integrally in the shape of a rectangular frame structure. Among them, the material of the buffer module 161 can be a flexible insulating material. Specifically, the material of the buffer module 161 includes rubber or spring. For example, the material of the buffer module 161 can be insulating rubber. When the buffer module 161 is insulating rubber, on the one hand, it can utilize the deformable property of the rubber to produce the above-mentioned buffering effect, and on the other hand, when the buffer module 161 can be used as an insulating protection part of the first conductor 14, it can improve the structural compactness of the ozone generation device 100 and the safety during use.

[0127] In this embodiment, a buffer member 162 can also be provided between the auxiliary electrode 12 and the housing 10. The functions of the buffer member 162 and the like can refer to the description of the buffer module 161 above, and the present application will not elaborate here.

[0128] Please refer to Figures 9 to 11 In the embodiments of the present application, a water supply device is further provided. The water supply device may include the ozone generation device 100 described in any one of the above embodiments.

[0129] For the water supply device, it may include a switching circuit. The switching circuit includes a switching circuit for switching the positive and negative poles of the main electrode and the auxiliary electrode. The switching circuit is configured as follows: when the switching circuit is in the first state, the main electrode is the positive pole and the auxiliary electrode is the negative pole; when the switching circuit is in the second state, the main electrode is the negative pole and the auxiliary electrode is the positive pole. The switching circuit may include a time control module for controlling the working duration of the first state and the second state.

[0130] By providing the ozone generation device 100, the water supply device can achieve the technical effects achieved by the embodiments of the ozone generation device 100. Specifically, please refer to the specific description of the embodiments of the oxygen generation device above, and the present application will not elaborate here.

[0131] In the embodiments of the present application, the water supply device can be any device that needs to use ozone water. Specifically, the water supply device can be any one of the following: a hot water device 200, a water purification device, a cleaning device, etc. In the embodiments of the present application, the example mainly takes the application of the water supply device in the hot water device 200. When the water supply device is applied to other devices, adaptive adjustments can be made with reference to the above scenarios.

[0132] In some embodiments, when the water supply device is the hot water device 200, the ozone generation device 100 is disposed on the inlet pipeline 21 of the hot water device 200; or, the ozone generation device 100 is disposed on the outlet pipeline 22 of the hot water device 200; or, the ozone generation device 100 is disposed on the bypass pipeline 23 of the hot water device 200, and the bypass pipeline 23 is used to connect the inlet pipeline 21 and the outlet pipeline 22 of the hot water device 200.

[0133] As Figure 9 shown, the ozone generation device 100 is disposed on the inlet pipeline 21 of the hot water device 200. In this way, the ozone generation device 100 will not come into contact with the hot water generated in the hot water device 200, so that it can be not affected by the hot water, and the service life of the ozone generation device 100 can be reliably guaranteed.

[0134] As Figure 10 shown, the ozone generation device 100 is disposed on the outlet pipeline 22 of the hot water device 200. In this way, the ozone water generated by the ozone generation device 100 does not need to pass through the inside of the hot water device 200, and its concentration will not be diluted by the water inside the hot water device 200. Especially for the volumetric hot water device 200 with a water tank, when the ozone generation device 100 is disposed downstream of the water tank, the dilution effect of the water in the water tank on the ozone water generated by the ozone generation device 100 can be avoided.

[0135] As Figure 11 shown, the ozone generation device 100 can be disposed on the bypass pipeline 23 of the hot water device 200, and the bypass pipeline 23 is used to connect the inlet pipeline 21 and the outlet pipeline 22 of the hot water device 200. In this way, the ozone generation device 100 can obtain all the advantages of the above two embodiments. It can avoid coming into contact with the hot water generated in the hot water device 200, so that it can be not affected by the hot water, and the service life of the ozone generation device 100 can be reliably guaranteed; it can also make the ozone water generated by the ozone generation device 100 not need to pass through the inside of the hot water device 200, and its concentration will not be diluted by the water inside the hot water device 200.

[0136] In some embodiments, the hot water device 200 may include a housing, and the ozone generation device 100 is disposed inside the housing or the ozone generation device 100 is disposed outside the housing.

[0137] For the hot water device 200, it has a housing. In the present application, the ozone generation device 100 can be disposed inside or outside the housing. For example, in the case where the ozone generation device 100 is disposed outside the housing, it can be retrofitted for an existing hot water device 200. By installing the ozone generation device 100 between the water inlet pipeline 21 and the water outlet pipeline 22 of the existing hot water device 200, such as a tee joint, a hot water device 200 with the function of generating ozone water can be obtained. Since the electrode of the ozone generation device 100 itself is a consumable part, it needs to be replaced after being used for a certain period of time. To ensure convenient disassembly, the ozone generation device 100 can be disposed outside the housing.

[0138] Of course, during the production process of a new product, if there is originally an installation space for the ozone generation device 100, the ozone generation device 100 can be installed inside the housing, thereby ensuring the overall aesthetics of the hot water device 200.

[0139] It should be noted that in the description of the present application, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects, and there is no sequence between them, nor can they be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0140] The above various embodiments in this specification are all described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0141] The above are only several embodiments of the present utility model. Although the disclosed embodiments of the present utility model are as above, the content is only an embodiment adopted for the convenience of understanding the present utility model and is not used to limit the present utility model. Any person skilled in the art in the technical field to which the present utility model belongs can make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed by the present utility model. However, the scope of patent protection of the present utility model shall still be subject to the scope defined by the appended claims.

Claims

1. An ozone generating device, characterized in that: include: A housing, wherein the housing is provided with a water inlet, a water outlet, and a receiving cavity communicating with the water inlet and the water outlet; An electrode assembly, the electrode assembly comprising: a main electrode, an auxiliary electrode, and a proton exchange membrane located between the main electrode and the auxiliary electrode; the electrode assembly is arranged in the accommodating cavity; The main electrode and the auxiliary electrode are connected to a switching circuit, and the switching circuit is used to switch the positive and negative poles of the main electrode and the auxiliary electrode; The switching circuit has a first state and a second state; The ozone generating device is configured as follows: when the switching circuit is in the first state, the main electrode is the positive electrode, the auxiliary electrode is the negative electrode, and the water flowing in from the water inlet can generate ozone to form ozone water when flowing through the main electrode and output from the water outlet; when the switching circuit is in the second state, the main electrode is the negative electrode, the auxiliary electrode is the positive electrode, and the water flowing in from the water inlet does not generate ozone when flowing through the auxiliary electrode.

2. The ozone generating device according to claim 1, characterized in that: The ozone generating device comprises a time control module, and the time control module is used to control the working duration of the first state and the second state.

3. The ozone generating device according to claim 1, characterized in that: The main electrode includes any one of a boron-doped diamond electrode, a tin dioxide electrode, a lead dioxide electrode, and a platinum electrode; the auxiliary electrode includes any one of a stainless steel electrode, a titanium and titanium alloy electrode, a zirconium and zirconium alloy electrode, a carbon electrode, and an oxide-coated electrode.

4. The ozone generating device according to claim 3, characterized in that: The main electrode is in the form of a plate with a predetermined thickness, has a first surface and a second surface along the thickness direction, and is provided with pores penetrating the first surface and the second surface; the proton exchange membrane is a complete sheet structure.

5. The ozone generating device according to claim 4, characterized in that: The auxiliary electrode is in the shape of a plate with a predetermined thickness.

6. The ozone generating device according to claim 4, characterized in that: The second surface of the main electrode is in contact with one surface of the proton exchange membrane, and the auxiliary electrode is in contact with the other surface of the proton exchange membrane.

7. The ozone generating device according to claim 1, characterized in that: The ozone generating device further includes a first conductor and a second conductor, wherein the first conductor is connected to the main electrode, and the second conductor is connected to the auxiliary electrode, and a power supply module can supply power to the ozone generating device through the first conductor and the second conductor.

8. The ozone generating device according to claim 7, characterized in that: The second conductor is integrally formed with the auxiliary electrode.

9. The ozone generating device according to claim 7, characterized in that: The main electrode is a boron-doped diamond electrode, and the main electrode is separately attached to the first conductor so that the main electrode and the first conductor are electrically conductive, and the main electrode has no mechanical connection with the first conductor.

10. The ozone generating device according to claim 4, characterized in that: The main electrode is a boron-doped diamond electrode. A buffer module is arranged between the main electrode and the shell. The buffer module is configured so that the compression amount can be adjusted.

11. The ozone generating device according to claim 10, characterized in that: The buffer module is provided with an opening, and a space where the opening is located is arranged opposite to the first surface of the main electrode.

12. The ozone generating device according to claim 1, characterized in that: The shell comprises a detachably connected base and an end cover, and the base and the end cover cooperate to form the accommodating cavity.

13. The ozone generating device according to claim 12, characterized in that: The water inlet is arranged at any one of the following positions: on the base, on the end cover, on the base and the end cover; the water outlet is arranged at any one of the following positions: on the base, on the end cover, on the base and the end cover.

14. The ozone generating device according to claim 12, characterized in that: The main electrode has a relative length direction and a width direction. The dimension of the main electrode in the length direction is greater than the dimension in the width direction. The water inlet and the water outlet are respectively arranged on both sides of the shell along the length direction.

15. The ozone generating device according to claim 4, characterized in that: The main electrode has a relative length direction and a width direction. The size of the main electrode in the length direction is larger than the size in the width direction. The pores are strip-shaped holes extending along the width direction. There are multiple strip-shaped holes, and the multiple strip-shaped holes are arranged at intervals along the length direction.

16. A water supply device, characterized in that: The water supply device comprises an ozone generating device as described in any one of claims 1 to 15.

17. The water supply device according to claim 16, characterized in that: The water supply device is any one of the following: a hot water device, a water purification device, and a cleaning device.

18. The water supply device according to claim 17, characterized in that: When the water supply device is a hot water device, the ozone generating device is arranged on the water inlet pipe of the hot water device; Or, the ozone generating device is arranged on the water outlet pipe of the water heater; Alternatively, the ozone generating device is arranged on a bypass pipeline of the water heater, and the bypass pipeline is used to connect a water inlet pipeline and a water outlet pipeline of the water heater.

19. The water supply device according to claim 18, characterized in that The water heater comprises a housing, and the ozone generator is arranged inside the housing or outside the housing.

Images