CN219037284U

CN219037284U - Oxygen treatment device and refrigerating and freezing device with same

Info

Publication number: CN219037284U
Application number: CN202222431862.2U
Authority: CN
Inventors: 黄璐璐; 苗建林; 程学丽
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-05-16
Anticipated expiration: 2032-09-14

Abstract

The utility model provides an oxygen treatment device and a refrigeration and freezing device with the same, wherein the oxygen treatment device comprises: a plurality of liquid storage bins which are separately and independently arranged and communicated with each other along the horizontal parallel arrangement; wherein, at least one liquid storage bin is an oxygen reaction bin, which provides an assembly space for assembling the electrode pairs and is used as a reaction place for performing electrochemical reaction to generate oxygen-deficient gas or oxygen-enriched gas; and at least one liquid storage bin is a liquid amount adjusting bin and is provided with a liquid supplementing port communicated with an external liquid source so as to receive liquid from the external liquid source and provide the liquid to at least one oxygen reaction bin. Because the liquid amount adjusting bin and the oxygen reaction bin form a communicating vessel, and the liquid levels are consistent based on the communicating vessel principle, the scheme of the utility model is beneficial to reducing the impact force of the liquid supplementing process on the electrode pair and improving the structural stability of the oxygen treatment device.

Description

Oxygen treatment device and refrigerating and freezing device with same

Technical Field

The utility model relates to air-conditioning fresh-keeping, in particular to an oxygen treatment device and a refrigeration and freezing device with the same.

Background

The modified atmosphere fresh-keeping technology is a technology for prolonging the storage life of food by adjusting the components of ambient gas. Refrigerating and freezing devices with air-conditioning fresh-keeping function are popular. Among the numerous gas components, oxygen is of great concern. The oxygen treatment device can treat oxygen in the working environment to generate oxygen-deficient gas or oxygen-enriched gas, thereby playing a role in regulating the oxygen content.

Some oxygen treatment devices in the prior art, such as some oxygen treatment devices that treat oxygen using electrochemical reactions, require timely replenishment of electrolyte to continuously perform the electrochemical reactions using electrode pairs. However, the inventors have recognized that the fluid replacement process can generate impact forces that can cause damage to the electrode pairs, which in turn can lead to reduced performance.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

An object of the present utility model is to overcome at least one technical defect in the prior art and to provide an oxygen treatment device and a refrigerating and freezing device having the same.

A further object of the present utility model is to reduce the impact force of the fluid infusion process on the electrode pairs and to improve the structural stability of the oxygen treatment device.

A further object of the utility model is to flexibly adjust the structure and the working efficiency of the oxygen treatment device.

Another further object of the present utility model is to reduce or avoid air lock during the fluid infusion process, and to ensure smooth fluid infusion process.

It is a further object of the present utility model to provide a liquid storage tank that avoids the occurrence of a random mixing of fluids while achieving both the air pressure balancing function and the liquid storage function.

It is a further object of the present utility model to maintain the liquid level in each reservoir in a dynamic equilibrium state, thereby ensuring a smooth progress of the electrochemical reaction.

It is a still further object of the present utility model to reduce the volume of the oxygen treatment device while ensuring the working efficiency.

In particular, according to an aspect of the present utility model, there is provided an oxygen treatment apparatus comprising:

a plurality of liquid storage bins which are separately and independently arranged and communicated with each other along the horizontal parallel arrangement; wherein the method comprises the steps of

At least one of the liquid storage bins is an oxygen reaction bin, which provides an assembly space for assembling the electrode pairs and is used as a reaction place for performing electrochemical reaction to generate oxygen-deficient gas or oxygen-enriched gas; and is also provided with

At least one of the liquid storage bins is a liquid amount adjusting bin which is provided with a liquid supplementing port communicated with an external liquid source so as to receive liquid from the external liquid source and provide the liquid to the at least one oxygen reaction bin.

Optionally, each liquid storage bin is provided with a liquid path communication port; the liquid path communication port is positioned at the bottom section of the liquid storage bin; and is also provided with

The oxygen treatment device also comprises at least one liquid path communicating pipe, wherein one liquid path communicating pipe is communicated with the liquid path communicating ports of the two liquid storage bins, so that the liquid paths of the liquid storage bins are communicated.

Optionally, a gas path communication port is formed in the top section of each liquid storage bin; and is also provided with

The oxygen treatment device also comprises at least one air passage communicating pipe, wherein one air passage communicating pipe is communicated with the air passage communicating ports of the two liquid storage bins, so that the air passages of the liquid storage bins are communicated; and one liquid storage bin is also provided with an air vent which is in air circuit communication with the air circuit communication port and is used for communicating with the external environment.

Optionally, each liquid storage bin comprises an upper bin body and a lower bin body which are communicated and arranged up and down; the upper bin body is used for circulating gas, and the lower bin body is used for storing liquid; and is also provided with

The liquid path communication port is arranged on the lower bin body; the gas path communication port is arranged on the upper bin body; the air vent is arranged on the upper bin body of one liquid storage bin.

Optionally, the fluid replacement opening is formed in the upper bin body of the fluid quantity adjusting bin; and is also provided with

The oxygen treatment device further comprises a liquid level switch, wherein the liquid level switch is arranged in the lower bin body of the liquid amount adjusting bin and used for moving according to the liquid level in the lower bin body, so that a passage between the lower bin body and the upper bin body of the liquid amount adjusting bin is opened and closed.

Optionally, an isolation bin which is communicated with the liquid supplementing port and is arranged at intervals with the gas circuit communication port is arranged in the upper bin body of the liquid amount regulating bin; a liquid outlet is formed in the bottom of the isolation bin and is communicated with the lower bin body of the liquid amount adjusting bin; and is also provided with

The liquid level switch is used for switching the liquid outlet through moving, so that a passage between the lower bin body and the upper bin body of the liquid amount adjusting bin is switched on and off.

Optionally, the oxygen treatment device further comprises at least one electrode pair, one of which is assembled to the lower chamber body of one of the oxygen reaction chambers; and is also provided with

The electrode pair comprises at least one cathode and one anode, and is used for transferring oxygen in the external gas into the oxygen reaction bin through electrochemical reaction so as to flow to the air vent and be discharged.

Optionally, a plurality of the liquid storage bins are arranged at intervals to form an air flow gap; the lower bin body is provided with at least one lateral opening; and is also provided with

The cathode is arranged at the lateral opening to define an electrolytic cavity for containing electrolyte together with the lower bin body, and is used for consuming oxygen in the gas flowing through the airflow gap through electrochemical reaction to generate oxygen-deficient gas; the anode is arranged in the electrolysis cavity and is used for providing reactants for the cathode through electrochemical reaction and generating oxygen.

Optionally, the liquid storage bin is flat; and is also provided with

The lateral openings are two and are oppositely arranged and are positioned on the wall of the lower bin body which is perpendicular to the arrangement direction of the liquid storage bins and has the largest area.

Optionally, the oxygen treatment device further comprises:

at least one connecting shaft; and is also provided with

The wall of each liquid storage bin is provided with at least one shaft hole which is arranged in a penetrating way and coaxial, the shaft holes are mutually separated from the inner space of the liquid storage bin, and the connecting shafts are inserted into the shaft holes, so that connection is realized.

Optionally, the number of the connecting shafts is four, and the wall of each liquid storage bin is provided with four shaft holes; wherein the method comprises the steps of

Two shaft holes are positioned at the top section of the liquid storage bin, and the other two shaft holes are positioned at the bottom section of the liquid storage bin.

Optionally, the oxygen treatment device further comprises:

the shell is provided with an air inlet interface and an air outlet interface which are used for communicating an external pipeline, and an air flow channel which is used for communicating the air inlet interface and the air outlet interface and is used for arranging a plurality of liquid storage bins is defined in the shell.

Optionally, the oxygen treatment device further comprises:

the airflow actuating device is arranged in the airflow channel and is provided with an air suction port and an air outlet; wherein the method comprises the steps of

The air suction inlet is in air flow communication with the air inlet interface, and the air outlet is opposite to the air outlet interface; and the airflow actuating device is used for promoting airflow flowing from the air inlet interface into the airflow channel and flowing to the air outlet interface.

According to another aspect of the present utility model, there is also provided a refrigerating and freezing apparatus including:

the box body is internally provided with a storage space; and

an oxygen treatment device as claimed in any preceding claim for regulating the oxygen content of the storage space.

According to the oxygen treatment device and the refrigeration and freezing device with the same, the plurality of liquid storage bins which are separated and independently arranged and are horizontally arranged in parallel and communicated are arranged in the oxygen treatment device, at least one liquid storage bin is used as an oxygen reaction bin, at least one liquid storage bin is used as a liquid amount adjusting bin, liquid received by the liquid amount adjusting bin can enter the oxygen reaction bin, and the liquid amount adjusting bin and the oxygen reaction bin form a communicating vessel, and the liquid level is consistent based on the principle of the communicating vessel.

Furthermore, the oxygen treatment device and the refrigeration and freezing device with the oxygen treatment device are independently arranged, and when the liquid storage bin is provided with the liquid path communication port and the liquid path communication port of the liquid storage bin is communicated by the liquid path communication pipe so as to realize liquid path communication, the number of the liquid storage bins can be increased or decreased very conveniently according to actual needs.

Further, the oxygen treatment device and the refrigeration and freezing device with the oxygen treatment device are characterized in that the gas passage communication ports are formed in the top section of the liquid storage bin, the gas passage communication ports are utilized to enable the liquid storage bins to be communicated through the gas passage communication pipes, the gas passage communication ports which are communicated with the gas passage communication ports and are used for communicating the external environment are formed in one liquid storage bin, the gas flow space which is communicated with the external environment can be connected in series in each liquid storage bin, when the liquid amount adjusting bin receives liquid from an external liquid source, the gas flow space is beneficial to realizing gas-liquid balance, gas resistance generated in the liquid supplementing process is reduced or avoided, and smooth liquid supplementing process is ensured.

Further, when each liquid storage bin comprises an upper bin body and a lower bin body which are communicated and arranged up and down, the upper bin body is provided with the air passage communication port, the lower bin body is provided with the liquid passage communication port, the air vent is arranged on the upper bin body of one liquid storage bin, and the upper bin body is used for circulating air, and the lower bin body is used for storing liquid, so that a liquid storage area and an air flow area are respectively defined in each liquid storage bin, and the liquid storage bin can avoid the phenomenon of disordered mixed flow of fluid on the premise of realizing the air pressure balance function and the liquid storage function.

Further, according to the oxygen treatment device and the refrigeration and freezing device with the oxygen treatment device, when the liquid supplementing port is formed in the upper bin body of the liquid amount adjusting bin, and the liquid level switch is arranged in the lower bin body of the liquid amount adjusting bin, the liquid level in each liquid storage bin can be in a dynamic balance state under the action of the liquid level switch, so that the stable operation of an electrochemical reaction is ensured. And the liquid stored in the liquid storage bin can be always in the lower bin body, and the liquid does not occupy the air flow space defined by the upper bin body.

Furthermore, the oxygen treatment device and the refrigerating and freezing device with the oxygen treatment device are characterized in that the liquid storage bin is arranged in a flat shape, the lower bin body of the oxygen reaction bin is provided with two lateral openings, and the wall which is perpendicular to the arrangement direction of the liquid storage bins and has the largest area is provided with the lateral openings, so that the oxygen treatment device can form a densely arranged structure, the volume of the oxygen treatment device is reduced, and the working efficiency is ensured.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 is a schematic structural view of an oxygen treatment device according to one embodiment of the present utility model;

FIG. 2 is a schematic exploded view of the oxygen treatment device shown in FIG. 1;

FIG. 3 is a schematic internal structural view of the oxygen treatment device shown in FIG. 1;

FIG. 4 is a schematic top view of the internal structure of the oxygen treatment device shown in FIG. 3;

FIG. 5 is an assembled block diagram of a reservoir of an oxygen treatment device according to one embodiment of the present utility model;

FIG. 6 is a schematic side view of the assembled structure of the cartridge of the oxygen treatment device shown in FIG. 5;

FIG. 7 is a schematic exploded view of an assembled structure of a liquid reservoir of the oxygen treatment device shown in FIG. 5;

FIG. 8 is a schematic perspective view of a liquid amount adjustment cartridge of the oxygen treatment device shown in FIG. 3;

FIG. 9 is a schematic block diagram of the housing of the oxygen treatment device of FIG. 1 with a top wall of the housing hidden;

FIG. 10 is an assembled block diagram of a positioning mechanism and a flow actuation device of an oxygen treatment device according to one embodiment of the present utility model;

FIG. 11 is a schematic exploded view of the assembly structure of the positioning mechanism and the airflow actuation device shown in FIG. 10;

FIG. 12 is a schematic structural view of an oxygen treatment device according to another embodiment of the present utility model;

fig. 13 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present utility model.

Detailed Description

Reference now will be made in detail to embodiments of the utility model, one or more examples of which are illustrated in the drawings. The various embodiments are provided to illustrate the utility model and not to limit the utility model. Indeed, various modifications and variations of the present utility model will be apparent to those of ordinary skill in the art without departing from the scope or spirit of the present utility model. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield still further embodiments. Accordingly, it is intended that the present utility model cover such modifications and variations as come within the scope of the appended claims and their equivalents.

An oxygen treatment apparatus 10 and a refrigerating and freezing apparatus 20 having the same according to an embodiment of the present utility model will be described with reference to fig. 1 to 13. Wherein the directions or positional relationships indicated by "inner", "outer", "upper", "lower", "top", "bottom", "transverse", "longitudinal", "horizontal", "vertical" and the like are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. To facilitate the construction of the illustrative device, some of the figures of the present utility model are illustrated in perspective.

In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.

In the description of embodiments of the present utility model, a description of the terms "one embodiment," "some embodiments," "some examples," "one example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

An embodiment of the present utility model first provides an oxygen treatment device 10. Fig. 1 is a schematic structural view of an oxygen treatment device 10 according to one embodiment of the present utility model. Fig. 2 is a schematic exploded view of the oxygen treatment device 10 shown in fig. 1.

Oxygen treatment device 10 may generally include a plurality of separate reservoirs independently disposed and horizontally juxtaposed and communicating.

Wherein, the separate and independent arrangement of the liquid storage bins means that each liquid storage bin is not integrally formed, but can be independently manufactured and connected with each other. The 'intercommunication' means that any two liquid storage bins can be directly or indirectly communicated to realize liquid exchange, so that the liquid level of each liquid storage bin is kept consistent. Of course, in one example, when multiple reservoirs are in communication, gas exchange may also be achieved between any two reservoirs. When a plurality of liquid storage bins are arranged in parallel along the horizontal direction, the plurality of liquid storage bins are arranged in a stacked mode along the horizontal direction.

At least one of the reservoirs is an oxygen reaction cartridge 300 that provides an assembly space for assembling the electrode pairs and serves as a reaction site for performing an electrochemical reaction to produce an oxygen-depleted gas or an oxygen-enriched gas. At least one of the reservoirs is a fluid volume regulating reservoir 700 having a fluid make-up port 342 in communication with an external fluid source for receiving fluid from the external fluid source and providing fluid to at least one oxygen reaction reservoir 300.

The fluid volume regulating reservoir 700 is used for storing fluid. The liquid amount adjustment chamber 700 of the present embodiment is not used for assembling the electrode pair. Liquid from an external liquid source may enter the liquid level adjustment cartridge 700 through the liquid replenishment port 342. Since the respective liquid storage tanks are communicated, the liquid introduced into the liquid amount adjustment tank 700 may flow into the oxygen reaction tank 300 to supplement the oxygen reaction tank 300 with the electrolyte.

Through setting up a plurality of separation independence sets up and along the level liquid storage storehouse of arranging side by side and intercommunication in oxygen processing apparatus 10 to utilize at least one liquid storage storehouse as oxygen reaction storehouse 300, and utilize at least one liquid storage storehouse as liquid measure and adjust storehouse 700, liquid that liquid measure and adjust storehouse 700 received can get into oxygen reaction storehouse 300, because liquid measure adjust storehouse 700 and oxygen reaction storehouse 300 form the intercommunication ware, and can reach the liquid level unanimity based on the intercommunication ware principle, consequently, adopt the scheme of this embodiment, be favorable to reducing the impact force of fluid infusion process to the electrode pair, improve oxygen processing apparatus 10's structural stability.

In one example, the fluid volume adjustment cartridge 700 is one. When the liquid amount adjusting chamber 700 is provided as one, the number of liquid storage chambers can be reduced, and the volume of the whole oxygen treatment device 10 can be reduced. In another example, the liquid amount adjusting cartridge 700 may be provided in two, three or more. At this time, the liquid storage amount of the whole oxygen treatment device 10 can be improved to a certain extent, and the liquid supplementing frequency can be reduced.

The oxygen reaction chamber 300 may be one, but may be provided in plurality, for example, two, three or more, according to actual needs. Fig. 3 is a schematic internal structural view of the oxygen treatment device 10 shown in fig. 1, and fig. 4 is a schematic plan view of the internal structure of the oxygen treatment device 10 shown in fig. 3, showing one liquid amount adjusting chamber 700 and two oxygen reaction chambers 300. When the number of the oxygen reaction cartridges 300 is plural, the oxygen regulating efficiency of the whole oxygen treatment apparatus 10 can be improved so that a proper fresh-keeping atmosphere can be rapidly created.

The mode that each liquid storage bin realizes intercommunication can set up according to actual need. In some alternative embodiments, each reservoir is provided with a fluid communication port 312. The oxygen treatment apparatus 10 further includes at least one liquid path communicating pipe 380, and one liquid path communicating pipe 380 communicates with the liquid path communicating ports 312 of the two liquid storage tanks, so that the liquid paths of the liquid storage tanks are communicated.

Fig. 5 is an assembled structural view of a liquid reservoir of the oxygen treatment device 10 according to one embodiment of the present utility model. Fig. 6 is a schematic side view of an assembled structure of a liquid reservoir of the oxygen treatment apparatus 10 shown in fig. 5. Fig. 7 is a schematic exploded view of an assembled structure of a liquid reservoir of the oxygen treatment apparatus 10 shown in fig. 5. For example, one liquid path communicating pipe 380 may communicate with the liquid path communicating ports 312 of two adjacent liquid storage tanks. At this time, the two reservoirs at the head end and the tail end need not be directly connected. The number of liquid path communicating pipes 380 is one less than the number of liquid storage bins. By adopting the scheme of the embodiment, the liquid path connecting structure is simple, and the liquid storage bin can be increased or decreased conveniently.

In another example, adjacent liquid storage bins can be embedded or spliced with each other so as to realize the mutual communication of the inner spaces.

Because each liquid storage bin is separately and independently arranged, when the liquid channel communication port 312 is formed in the liquid storage bin and the liquid channel communication port 312 of the liquid storage bin is communicated by the liquid channel communication pipe 380 so as to realize liquid channel communication, the number of the liquid storage bins can be very conveniently increased or decreased according to actual needs, therefore, the structure and the working efficiency of the oxygen treatment device 10 can be flexibly and flexibly adjusted by adopting the scheme of the embodiment, the internal structure of each liquid storage bin is not required to be adaptively modified, and the whole device has higher integration.

In one example, the fluid path communication port 312 is located in a bottom section of the reservoir. The fluid communication port 312 may be provided on a sidewall of the reservoir. For example, the fluid path communication port 312 may be provided at a lower portion of a sidewall of the reservoir. By adopting the scheme of the embodiment, when the liquid amount adjusting bin 700 supplements liquid to the oxygen reaction bin 300, liquid can slowly enter the oxygen reaction bin 300 from the bottom of the oxygen reaction bin 300, and the electrode pair cannot be scoured, so that the damage to the electrode pair in the liquid supplementing process can be reduced.

The liquid path communication ports 312 of each liquid storage bin may be provided in two to be connected with the adjacent two liquid storage bins through the liquid path communication pipe 380, respectively. The two liquid storage bins at the head end and the tail end are respectively provided with a liquid path communication port 312 in an idle state and are not connected with the liquid path communication ports 312 of the adjacent liquid storage bins, and the liquid path communication ports 312 in the idle state can be closed by a sealing plug 391 at the moment so as to prevent liquid leakage.

In some alternative embodiments, the top section of each reservoir is provided with a gas passage communication port 343. The air passage communication port 343 may be provided on the top wall of the liquid storage bin. Of course, the air passage communication port 343 may be disposed on a side wall of the liquid storage bin and located at an upper portion of the side wall of the liquid storage bin.

The oxygen treatment device 10 further comprises at least one air passage communicating pipe 370, and the air passage communicating pipe 370 is communicated with the air passage communicating ports 343 of the two liquid storage bins, so that the air passages of the liquid storage bins are communicated. For example, one air passage communication tube 370 may communicate with air passage communication ports 343 of two adjacent reservoirs. At this time, the two reservoirs at the head end and the tail end need not be directly connected. The number of the air path communicating pipes 370 is one less than the number of the liquid storage bins. By adopting the scheme of the embodiment, the air circuit connection structure is simple, and the liquid storage bin can be increased or decreased conveniently.

One liquid storage bin is also provided with an air vent 341 which is in air passage communication with the air passage communication port 343 and is used for communicating with the external environment. The vent 341 may be provided on any of the reservoirs. The air vent 341 is communicated with the air passage communication opening 343 of the liquid storage bin and is communicated with the external environment of each liquid storage bin, so that each liquid storage bin is directly or indirectly in air passage communication with the external environment.

Through set up gas circuit intercommunication mouth 343 at the top section of stock solution storehouse to utilize gas circuit communicating pipe 370 to make each stock solution storehouse realize gas circuit intercommunication, and set up with gas circuit intercommunication mouth 343 gas circuit intercommunication and be used for the air vent 341 of external environment in a stock solution storehouse, can establish ties out the air current space of intercommunication external environment in each stock solution storehouse, when liquid volume adjustment storehouse 700 received the liquid from external liquid source, under the effect of air current space, be favorable to realizing gas-liquid balance, reduce or avoid the fluid infusion process to produce the air lock, guarantee that the fluid infusion process is smooth and easy to carry out.

By adopting the scheme, the gas in all the liquid storage bins can be discharged into the external environment through the air vents 341. When the electrochemical reaction performed in the oxygen reaction chamber 300 generates gas, the gas generated in each oxygen reaction chamber 300 may be collected to the vent 341 and discharged centrally, which facilitates the centralized treatment and utilization of the exhaust gas. The vent 341 may be provided on the top wall of one of the reservoirs. For example, the vent 341 may be provided on the top wall of the oxygen reaction cartridge 300. In another example, when one vent 341 is formed in one reservoir, another vent 341 may be further formed in another reservoir to increase the exhaust rate.

In some alternative embodiments, each reservoir includes an upper reservoir body 340 and a lower reservoir body 310, respectively, that are in communication and arranged one above the other. Wherein, the upper bin 340 is used for circulating gas, and the lower bin 310 is used for storing liquid. As the name suggests, upper cartridge 340 is located above lower cartridge 310. The upper and

lower cartridges

340, 310 of this embodiment may be integrally formed. A gas-liquid communication port is formed between the upper bin 340 and the lower bin 310, so that the upper bin 340 and the lower bin 310 are communicated. By such arrangement, the assembly structure between the upper bin 340 and the lower bin 310 can be omitted, and the air tightness of the connection structure between the upper bin 340 and the lower bin 310 can be ensured.

Of course, in another example, the upper cartridge body 340 and the lower cartridge body 310 may be manufactured separately and independently, and communicate with each other through a connection. The connection modes include, but are not limited to, mutual plugging, mutual embedding and the like.

The liquid path communication port 312 is formed in the lower bin 310. For example, the liquid passage communication port 312 may be opened at a lower portion of a sidewall of the lower housing 310. The air passage communication port 343 is provided in the upper chamber 340. For example, the air passage communication port 343 may be opened on the top wall of the upper chamber 340. The vent 341 is provided on the upper bin 340 of one liquid storage bin. For example, the vent 341 may be formed in the upper chamber body 340 of the oxygen reaction chamber 300 and located on the top wall of the upper chamber body 340.

When each liquid storage bin comprises an upper bin body 340 and a lower bin body 310 which are mutually communicated and vertically arranged, the upper bin body 340 is provided with a gas path communication port 343, the lower bin body 310 is provided with a liquid path communication port 312, and the vent 341 is arranged on the upper bin body 340 of one liquid storage bin, and the lower bin body 310 is used for storing liquid because the upper bin body 340 is used for circulating gas, so that a liquid storage area and a gas flow area are respectively defined in each liquid storage bin, and the liquid storage bin can avoid the phenomenon of disordered mixed flow of fluid on the premise of realizing the air pressure balance function and the liquid storage function. The gas generated in the oxygen reaction chamber 300 can be directly discharged to the vent 341 through the gas flow space, the exhaust efficiency is high, and the gas discharged through the vent 341 hardly carries the electrolyte.

In some alternative embodiments, the fluid replacement port 342 opens into the upper cartridge body 340 of the fluid quantity adjustment cartridge 700. The oxygen treatment apparatus 10 further includes a liquid level switch 720 disposed in the lower chamber body 310 of the liquid level adjustment chamber 700 for moving according to the liquid level in the lower chamber body 310, thereby switching on and off the passage between the lower chamber body 310 and the upper chamber body 340 of the liquid level adjustment chamber 700. Fig. 8 is a schematic perspective view of the liquid amount adjustment cartridge 700 of the oxygen treatment device 10 shown in fig. 3, showing the liquid level switch 720. Fig. 8 (a) shows a perspective part by using a dotted line, and fig. 8 (b) shows a perspective part by using a solid line.

When the liquid amount of the liquid amount adjusting bin 700 decreases, the liquid level switch 720 may be moved downward to open a passage between the lower bin body 310 and the upper bin body 340 of the liquid amount adjusting bin 700, at which time liquid from an external liquid source may flow into the lower bin body 310 through the upper bin body 340 to increase the liquid amount of the liquid amount adjusting bin 700. When the liquid amount of the liquid amount adjusting bin 700 increases, the liquid level switch 720 may be moved upward to an initial position so that a path between the lower bin body 310 and the upper bin body 340 of the liquid amount adjusting bin 700 is restored to an off state, at which time liquid from an external liquid source cannot flow into the lower bin body 310.

When the upper bin body 340 of the liquid amount adjusting bin 700 is provided with the liquid supplementing opening 342, and the lower bin body 310 of the liquid amount adjusting bin 700 is provided with the liquid level switch 720, the liquid level in each liquid storage bin can be in a dynamic balance state under the action of the liquid level switch 720, so that the stable progress of the electrochemical reaction is ensured. And the liquid stored in the liquid storage bin can be always positioned in the lower bin body 310, so that the liquid does not occupy the air flow space defined by the upper bin body 340.

The fluid level switch 720 may include a rotary float 721, a rotary shaft 723, and a switch body 722. Wherein the rotation shaft 723 is fixed in the lower cartridge body 310. The switch body 722 is fixedly connected with the rotary float 721 or is an integral piece with the rotary float 721. The rotary float 721 is rotatably disposed in the lower bin body 310 around the rotation shaft 723, and floats up and down according to the liquid level in the lower bin body 310, so as to drive the switch body 722 to move, thereby adjusting the passage between the lower bin body 310 and the upper bin body 340 of the bin 700.

An isolation bin 710 which is communicated with the liquid supplementing port 342 and is arranged at intervals with the air passage communication port 343 is arranged in the upper bin body 340 of the liquid amount adjusting bin 700. The bottom of the isolation bin 710 is provided with a liquid outlet 711, and the liquid outlet 711 is communicated with the lower bin body 310 of the liquid amount adjusting bin 700. The isolation bin 710 is communicated with the upper bin body 340 and is arranged at intervals with the air channel communication port 343, which means that the liquid flowing into the upper bin body 340 can only enter the isolation bin 710 and flow into the lower bin body 310 through the liquid outlet 711 of the isolation bin 710, and does not flow into the air channel communication port 343, and the air flowing into the air channel communication port 343 does not flow into the isolation bin 710.

The liquid level switch 720 is used to open and close the liquid outlet 711 by moving, thereby opening and closing the passage between the lower and

upper tanks

310 and 340 of the liquid amount adjusting tank 700. For example, when the liquid amount in the lower tank body 310 of the liquid amount adjusting tank 700 is sufficient and no liquid replenishment is required, the switch body 722 of the liquid level switch 720 can just close the liquid outlet 711. The rotary float 721 opens or closes the liquid outlet 711 by driving the switch body 722 to move under the condition of buoyancy change, thereby opening and closing the passage between the lower and

upper tanks

310 and 340 of the liquid amount adjusting tank 700.

The liquid outlet 711 may penetrate through the bottom wall of the isolation bin 710 and protrude downward. The switch body 722 may have a sealing plug 391 adapted to close the outlet 711 with a bottom opening of the outlet 711.

By adopting the above scheme, when the liquid level switch 720 turns off the passage between the lower bin body 310 and the upper bin body 340 of the liquid level adjusting bin 700, the liquid flowing into the upper bin body 340 can be completely temporarily stored in the isolation bin 710 without overflowing to other parts of the upper bin body 340, so that the air flow space of the liquid level adjusting bin 700 can be kept dry and smooth. The level switch 720 may be configured to maintain the liquid level of the liquid level adjustment cartridge 700 below the upper cartridge body 340.

In some alternative embodiments, oxygen treatment device 10 also includes at least one electrode pair. That is, the electrode pairs may be provided in one or more. An electrode pair is assembled to the lower chamber body 310 of an oxygen reaction chamber 300. That is, one oxygen reaction cartridge 300 is equipped with one electrode pair. The number of electrode pairs is the same as the number of oxygen reaction cartridges 300. The fluid quantity adjusting chamber 700 is not equipped with an electrode pair.

The electrode pair includes at least one cathode 320 and one anode 330 for transferring oxygen in the external gas into the oxygen reaction chamber 300 through an electrochemical reaction to flow to the vent 341 and be discharged. Wherein, the external air can refer to the ambient air in the environment where each liquid storage bin is located. Oxygen transferred into the oxygen reaction cartridge 300 may flow into the upper cartridge body 340 of the oxygen reaction cartridge 300 and be discharged through the vent 341.

That is, under the action of the electrode pair, oxygen in the external air can be transferred into the oxygen reaction chamber 300 and discharged through the air vent 341, so that the environment where each liquid storage chamber is located forms a low-oxygen atmosphere. The cathodes 320 of the electrode pairs may be one or more. When the number of the cathodes 320 of the electrode pair is plural, the plurality of cathodes 320 may share one anode 330 to improve the electrochemical reaction efficiency.

In some alternative embodiments, a plurality of reservoirs are spaced apart to form an air flow gap. The lower cartridge body 310 is provided with at least one lateral opening 315. The lateral opening 315 of each lower cartridge body 310 can be provided in one or more. The number of lateral openings 315 of the lower cartridge body 310 of the oxygen reaction cartridge 300 is the same as the number of cathodes 320 of the electrode pair to which the lower cartridge body 310 is assembled.

A cathode 320 is disposed at a lateral opening 315 to define an electrolytic chamber with the lower housing 310 for containing an electrolyte, i.e., the cathode 320 closes the lateral opening 315 of the lower housing 310. The cathode 320 is used to consume oxygen in the gas flowing through the gas flow gap through an electrochemical reaction to produce an oxygen-depleted gas. Oxygen in the air may undergo a reduction reaction at the cathode 320, namely: o (O) ₂ +2H ₂ O+4e ^- →4OH ^- . In one example, the electrolysis chamber contains an alkaline electrolyte, such as 1-8 mol/L NaOH, the concentration of which can be adjusted according to actual needs.

Anode 330 and cathode 320 are disposed at a distance from each other in the electrolysisAnd serves to supply reactant to the cathode 320 through electrochemical reaction and generate oxygen. OH generated by cathode 320 ^- An oxidation reaction may occur at anode 330 and oxygen is generated, namely: 4OH ^- →O ₂ +2H ₂ O+4e ^- . In one example, the cathode 320 and the anode 330 may be plate-shaped, respectively. In other examples, anode 330 may be any other suitable shape that is transformed into a cylindrical shape or an arc shape.

The above examples of electrochemical reactions with respect to the cathode 320 and the anode 330 are merely illustrative, and one skilled in the art should readily modify the types of electrochemical reactions or develop the structure of the oxygen treatment device 10 suitable for other types of electrochemical reactions in view of the above examples, and such modifications and extensions should fall within the scope of the present utility model.

By adopting the above scheme, since the liquid storage bins are not shielded from each other, each liquid storage bin can be contacted with the external gas, so that the contact area between the cathode 320 assembled to the lower bin body 310 and the external gas can be increased, thereby improving the electrochemical reaction efficiency. The lateral openings 315 may be provided on any wall of the lower cartridge body 310 of the oxygen reaction cartridge 300.

In some alternative embodiments, the lateral openings 315 may be provided in the wall of the lower cartridge body 310 perpendicular to the direction of arrangement of the plurality of reservoirs and having the largest area. That is, the wall of the liquid storage bin having the largest area of the lower bin body 310 is perpendicular to the arrangement direction of the plurality of liquid storage bins, and the lateral opening 315 is provided on the wall of the oxygen reaction bin 300 having the largest area of the lower bin body 310. By doing so, the working area of the cathode 320 can be increased, thereby further improving the electrochemical reaction efficiency.

In some alternative embodiments, the reservoir is flat in shape, such as a flat cuboid shape. The lateral openings 315 are two and are oppositely arranged and are positioned on the wall of the lower bin body 310 which is perpendicular to the arrangement direction of the plurality of liquid storage bins and has the largest area.

Through setting up the stock solution storehouse to the flat shape to offer two side direction openings 315 at the lower storehouse body 310 of oxygen reaction storehouse 300, and offer side direction openings 315 on the biggest wall of direction and area of arranging of a plurality of stock solution warehouses, can make oxygen processing apparatus 10 form intensive arrangement structure, can guarantee simultaneously that negative pole 320 has great working area, be favorable to reducing the volume of oxygen processing apparatus 10, ensure that electrochemical reaction's efficiency is in higher level. Compared with the conventional oxygen treatment device 10, the oxygen treatment device 10 according to the embodiment of the utility model has a significantly reduced volume while maintaining a higher working efficiency.

Each liquid storage bin can be connected with each other to realize the assembly of integrated form, can realize interconnect through joint structure, grafting structure or spiro union structure etc..

In some alternative embodiments, oxygen treatment device 10 may further include at least one connecting shaft 392. The connecting shaft 392 may be provided in one or more, for example, two, three, four or more. The wall of each liquid storage bin is provided with at least one shaft hole 311 which is arranged in a penetrating way and coaxial, the shaft holes 311 are mutually separated from the inner space of the liquid storage bin, and the connecting shaft 392 is inserted into the shaft holes, so that connection is realized. The number of shaft holes 311 of each liquid storage bin is the same as that of the connecting shafts 392. A connecting shaft 392 is inserted into the coaxial shaft holes 311 of the plurality of reservoirs. When the number of the connecting shafts 392 and the number of the shaft holes 311 of each liquid storage bin are plural, the shaft holes 311 of each liquid storage bin may be divided into plural groups, each group of shaft holes 311 is coaxially arranged, and the same connecting shaft 392 penetrates the same group of shaft holes 311 of the plural liquid storage bins.

In a further example, the connecting shafts 392 are four, and the wall of each reservoir is provided with four shaft holes 311. Wherein, two shaft holes 311 are positioned at the top section of the liquid storage bin, and the other two shaft holes 311 are positioned at the bottom section of the liquid storage bin.

By adopting the scheme, each liquid storage bin can be assembled into a whole through the connecting shaft 392, the assembly mode is simple, and an air flow gap can be formed between the adjacent liquid storage bins.

In some alternative embodiments, oxygen treatment device 10 may further include a housing 200. Fig. 9 is a schematic structural view of the housing 200 of the oxygen treatment device 10 shown in fig. 1, with the top wall 220 of the housing 200 omitted.

The housing 200 is formed with an inlet port 231 and an outlet port 221 for communicating with an external pipe, and defines an air flow passage 280 therein for communicating with the inlet port 231 and the outlet port 221 for disposing a plurality of reservoirs. Multiple reservoirs may form an oxygen treatment assembly.

Since the gas inlet port 231 and the gas outlet port 221 are formed on the housing 200, the gas flow channel 280 may communicate with the space to be regulated through a pipeline, so that the gas in the space to be regulated may flow into the gas flow channel 280 from the gas inlet port 231 and flow to the cathodes of the respective electrode pairs to form oxygen-depleted gas or oxygen-enriched gas under the action of the electrode pairs.

The electrode pairs mounted in the oxygen reaction cartridge may be used to treat oxygen in the gas flowing from the inlet port 231 into the gas flow channel 280 to produce an oxygen-depleted gas or an oxygen-enriched gas. Oxygen-depleted gas or oxygen-enriched gas is sent out through the outlet port 221, thereby adjusting the oxygen content of the external space. The external space herein may refer to a space to be conditioned, such as the storage space 610 of the refrigeration chiller 20. That is, the inlet port 231 and the outlet port 221 may communicate with the same space through external pipes, respectively. Of course, in another example, the inlet port 231 and the outlet port 221 may communicate with different spaces through external pipes, respectively.

By providing the air inlet port 231 and the air outlet port 221 for communicating with the external pipeline on the housing 200, and providing a plurality of liquid storage bins in the air flow channel 280 communicating with the air inlet port 231 and the air outlet port 221, the air from the external space can flow into the air flow channel 280 through the air inlet port 231 and receive the treatment of the electrode pair, thereby forming oxygen-deficient air or oxygen-enriched air, and finally be sent out from the air outlet port 221. Since the gas in the external space can enter the air inlet port 231 through the pipeline, the oxygen treatment device 10 can be arranged at any position, for example, at any position far away from the space to be regulated by adopting the scheme of the embodiment, so that the dependence of the assembly of the oxygen treatment device 10 on the scene structure can be reduced, the assembly flexibility of the oxygen treatment device 10 in the refrigerating and freezing device 20 is improved, and the application range of the oxygen treatment device 10 is enlarged.

The electrode pairs may consume oxygen or generate oxygen to thereby function to regulate the oxygen content of the gas flowing through the gas flow channel 280 for the purpose of treating oxygen.

In some alternative embodiments, oxygen treatment device 10 may further include an inlet line and an outlet line. The intake pipe communicates with the intake port 231 and serves as an external pipe of the intake port 231. The air outlet pipeline is communicated with the air outlet interface 221 and serves as an external pipeline of the air outlet interface 221. The end of the intake conduit remote from the intake interface 231 may extend to the space to be conditioned. The end of the outlet pipe remote from the outlet port 221 may extend to the space to be conditioned. The gas in the space to be regulated flows into the gas inlet interface 231 through the gas inlet pipeline and flows into the gas flow channel 280, then flows out of the gas flow channel 280 through the gas outlet interface 221 and flows back into the space to be regulated through the gas outlet pipeline, and the gas inlet interface 231 and the gas outlet interface 221 can be respectively communicated with respective external pipelines directly or indirectly.

In one example, the inlet port 231 and the outlet port 221 may be openings or apertures, respectively, formed in the housing 200. In some alternative embodiments, air inlet interface 231 is a hollow cylindrical interface formed on housing 200 and bulging outward; and/or the outlet port 221 is a hollow cylindrical port formed on the housing 200 and bulging outward.

When the air inlet port 231 is a hollow cylindrical port formed on the housing 200 and protruding outwards, and/or the air outlet port 221 is a hollow cylindrical port formed on the housing 200 and protruding outwards, the air inlet port 231 and/or the air outlet port 221 may be connected to an external pipeline in a plugging or nesting manner, which may reduce the difficulty of connection between the oxygen treatment device 10 and the external pipeline.

In some alternative embodiments, the inlet port 231 and the outlet port 221 are formed on two different walls of the case 200, such that the distance between the inlet port 231 and the outlet port 221 can be appropriately extended to provide the gas flow channel 280 with a longer gas flow path, so that the flow time of the gas flowing through the gas flow channel 280 is increased to be in sufficient contact with the cathode of the electrode pair. In one example, the inlet port 231 is formed on the bottom wall 210 or one side wall of the housing 200 and the outlet port 221 is formed on the top wall 220 or the other side wall of the housing 200. The positions of the inlet interface 231 and the outlet interface 221 may be interchanged.

In a further embodiment, the inlet ports 231 are arranged offset from the outlet ports 221 in the longitudinal and transverse directions. For example, in one example, the inlet air interface 231 is formed at a bottom section of the housing 200 and the outlet air interface 221 is formed at a top section of the housing 200; further, the air inlet port 231 may be located at one lateral side of the housing 200, and further, the air outlet port 221 may be located at the other lateral side of the housing 200. In a further example, the housing 200 is generally in a hollow column shape, such as a hollow prism or a hollow cylinder, the air inlet port 231 is disposed on a side wall of the housing 200 and is located at a bottom of the housing 200, and the air outlet port 221 is disposed on a top wall 220 of the housing 200 and is remote from the side wall of the housing 200 where the air inlet port 231 is disposed so as to be diagonally opposite to the air inlet port 231.

By providing the inlet port 231 and the outlet port 221 on two different walls of the housing 200, or further by arranging the inlet port 231 and the outlet port 221 longitudinally and laterally offset, the gas flow path through the gas flow channel 280 may be prolonged, so that the gas flowing through the gas flow channel 280 is in sufficient contact with the cathode of the electrode pair, so that the oxygen content of the oxygen-depleted gas exiting the outlet port 221 is at a lower level, or so that the oxygen content of the oxygen-enriched gas exiting the outlet port 221 is at a higher level.

In some alternative embodiments, oxygen treatment device 10 further includes a gas flow actuation device 400 disposed within gas flow channel 280 and having a suction port 411 and a discharge port 412. Wherein, the air suction inlet 411 is in air flow communication with the air inlet interface 231, and the air outlet 412 is opposite to the air outlet interface 221. And the airflow actuation device 400 is configured to facilitate airflow from the air inlet interface 231 into the airflow channel 280 and to the air outlet interface 221.

When the airflow actuating device 400 is disposed in the airflow channel 280, and the air suction inlet 411 of the airflow actuating device 400 is in airflow communication with the air inlet 231, and the air outlet 412 of the airflow actuating device 400 is opposite to the air outlet 221, the air in the external space can flow into the airflow channel 280 from the air inlet 231 and flow to the air outlet 221 under the actuation of the airflow actuating device 400, so as to form an active high-speed airflow circulation structure, and the mode of capturing oxygen only by means of the molecular diffusion principle is changed, so that the air flow rate in the airflow channel 280 in unit time is facilitated to be improved, and the working efficiency of the oxygen treatment device 10 is improved.

In one example, the airflow actuation device 400 is a centrifugal fan. Of course, in other examples, the airflow actuation device 400 may be replaced with any other fan, such as an axial flow fan, for example.

In some alternative embodiments, the airflow channel 280 has a first section 281 that connects to the air intake interface 231 and tapers in cross-section and a second section 282 that connects to the air intake 411 of the airflow actuation device 400 and tapers in cross-section. As the gas flows through the first section 281, the cross-sectional area of the flow clusters (i.e., the area of the flow cross-section) perpendicular to the gas flow gradually expands in the gas flow direction. As the gas flows through the second section 282, the cross-sectional area of the flow clusters (i.e., the area of the flow cross-section) perpendicular to the gas flow is gradually reduced in the direction of gas flow.

By providing the first section 281 in the airflow channel 280, which connects to the air inlet port 231 and has a diverging flow cross section, and the second section 282, which connects to the air suction opening 411 of the airflow actuating device 400 and has a converging flow cross section, the air flowing through the airflow channel 280 can be guided by the first section 281 and the second section 282, respectively, so that turbulence is reduced or avoided. And the gas flowing into the gas inlet port 231 may flow at a reduced speed by the first section 281 to extend the flow time so as to be sufficiently contacted with the cathode of the electrode pair; under the action of the second section 282, the gas can flow in an accelerated manner and flow out of the gas outlet port 221 at a higher speed to increase the air conditioning efficiency of the space to be conditioned.

In one example, the first section 281 and the second section 282 may be directly connected. Oxygen treatment assembly 300 may be disposed within first section 281 or within second section 282, although it may be disposed at the junction of first section 281 and second section 282, or within both first section 281 and second section 282.

In another example, the airflow channel 280 also has a third section 283 connected between the first section 281 and the second section 282. The first and

second sections

281 and 282 are located on either side of the third section 283. The dashed lines in fig. 9 illustrate the boundary between the first and

third sections

281, 283 and the boundary between the second and

third sections

282, 283.

Oxygen treatment assembly 300 is disposed within third section 283. The area of the flow cross section of the third section 283 (i.e., the cross sectional area of the flow clusters perpendicular to the flow of gas) may remain unchanged in the direction of gas flow. As such, the flow rate of the gas flowing through the third zone 283 does not significantly vary, such that various portions of the oxygen treatment assembly 300 are uniformly in contact with the gas flowing therethrough, thereby uniformly producing an oxygen-depleted gas or an oxygen-enriched gas.

In some alternative embodiments, oxygen treatment device 10 also includes a positioning mechanism 500 that is secured within gas flow channel 280 and fixedly coupled to gas flow actuation device 400 to secure gas flow actuation device 400 within gas flow channel 280. Fig. 10 is an assembled block diagram of a positioning mechanism 500 and a flow actuation device 400 of an oxygen treatment device 10 according to one embodiment of the utility model. Fig. 11 is a schematic exploded view of the assembled structure of the positioning mechanism 500 and the air flow actuation device 400 shown in fig. 10.

When it is desired to mount the airflow actuation device 400 to the airflow channel 280, the airflow actuation device 400 may be assembled to the positioning mechanism 500, and then the positioning mechanism 500 may be assembled to the airflow channel 280, for example, fixed to an inner wall of the housing 200. The positioning mechanism 500 is used to indirectly fix the airflow actuating device 400 to the airflow channel 280, so that the connection operation of the airflow actuating device 400 and the housing 200 can be avoided from being directly performed in the narrower airflow channel 280.

In some further embodiments, the airflow actuation device 400 includes a volute 410 and a wind wheel 420 disposed within the volute 410. The suction port 411 and the discharge port 412 are formed on the scroll 410, respectively.

The positioning mechanism 500 defines a mounting slot 510 into which the volute 410 fits, and further defines a first opening 520 that communicates with the mounting slot 510 and communicates with the air outlet 412, and a second opening 530 that communicates with the mounting slot 510 and communicates with the air intake 411. The first opening 520 may be facing the suction inlet 411 of the scroll case 410 and the second opening 530 may be facing the outlet 412 of the scroll case 410. The scroll case 410 may be fixed in the installation groove 510 by screwing.

By fitting the airflow actuating device 400 within the mounting slot 510 of the positioning mechanism 500 and communicating the mounting slot 510 with the first opening 520 and the second opening 530, the stability of the fitting between the airflow actuating device 400 and the positioning mechanism 500 can be improved, and the positioning mechanism 500 can be reduced or avoided from blocking the air suction opening 411 and the air outlet 412 of the airflow actuating device 400.

In some alternative embodiments, the positioning mechanism 500 further defines a male pawl 540 extending outwardly from at least a portion of the open edge of the mounting slot 510. The inner wall of the housing 200 correspondingly defines a clamping groove 241 into which the male jaws 540 are inserted for clamping.

By adopting the above scheme, the positioning mechanism 500 is fixed in the airflow channel 280, and the positioning mechanism 500 is fixedly connected with the airflow actuating device 400, so that the airflow actuating device 400 is fixed in the airflow channel 280, and when the positioning mechanism 500 is fixed on the inner wall of the housing 200 by adopting the matching structure of the clamping claw and the clamping groove 241, the assembly mode of the airflow actuating device 400 of the oxygen treatment device 10 can be simplified.

In some alternative embodiments, the male jaws 540 may extend radially outwardly from at least a portion of the open edge of the mounting groove 510, such as from the lateral ends and bottom ends of the mounting groove 510.

In one example, the positioning mechanism 500 also defines a flange 550 extending outwardly from the top end of the open edge of the mounting slot 510. The flange 550 is provided with a first screw hole 551, and the inner wall of the housing 200 is correspondingly formed with a second screw hole 242 opposite to the first screw hole 551, so that the flange 550 is fixedly connected with the inner wall of the housing 200 through screwing.

In another example, the positioning mechanism 500 may define both the male protrusion 540 and the flange 550, such that the positioning mechanism 500 is secured to the inner wall of the housing 200 using both the mating structure of the protrusion and the clamping groove 241 and the screw structure, which is advantageous for further improving the assembly stability of the airflow actuation device 400 within the airflow channel 280.

In some alternative embodiments, the outer surfaces of the cathodes of the electrode pairs extend in the direction of extension of the flow clusters of the gas flow through the third section 283.

That is, the extending direction of the outer surfaces of the cathodes 320 of the electrode pairs is parallel to the extending direction of the flow clusters of the gas flow passing through the third section 283, so that the gas passing through the third section 283 can be uniformly contacted with the outer surfaces of the cathodes 320 of the electrode pairs in time sequence, thereby extending the contact time of the cathodes 320 of the electrode pairs with the gas flow to be treated per unit time.

In one example, oxygen vented through vent 341 may be vented directly. Of course, in another example, the oxygen discharged through the air vent 341 may also be delivered to the high-oxygen fresh-keeping space of the refrigeration and freezing device 20 to create a high-oxygen fresh-keeping atmosphere, so as to improve the fresh-keeping performance of the refrigeration and freezing device 20.

With the above structure, the oxygen treatment device 10 can consume oxygen in the low-oxygen fresh-keeping space of the refrigerating and freezing device 20, or the oxygen treatment device 10 can raise oxygen in the high-oxygen fresh-keeping space of the refrigerating and freezing device 20, so that the function multiplexing of the oxygen treatment device 10 can be realized.

In some alternative embodiments, the housing 200 is further provided with an oxygen outlet 222. The oxygen treatment apparatus 10 further includes an oxygen discharge pipe 350 having one end communicating with the vent port and the other end protruding from the oxygen discharge port 222 to the outside of the housing 200 for discharging oxygen discharged through the vent port to the outside of the housing 200.

In alternative embodiments, the oxygen treatment device 10 may further omit the oxygen discharge tube 350, and the vent 341 may be a hollow cylindrical port formed in the upper cartridge body 340 and protruding outward, and the vent 341 may protrude to the outside of the housing 200 through the oxygen discharge port 222 to discharge the oxygen flowing therethrough to the outside of the housing 200.

In some alternative embodiments, the housing 200 is further provided with a filling port 223. And the oxygen treatment apparatus 10 further includes a liquid replenishing pipe 360 having one end communicating with the liquid replenishing port 342 and the other end protruding from the liquid filling port 223 to the outside of the housing 200 for guiding the liquid from the external liquid source to the lower tank body 310 of the liquid amount adjusting tank 700.

In some alternative embodiments, the housing 200 has a bottom wall 210 and a top wall 220, and first and

second sidewalls

230 and 240, respectively, extending upwardly from the bottom wall 210 to the top wall 220 and disposed opposite thereto.

The outlet port 221 is formed on the top wall 220 of the housing 200, and may be disposed on one lateral side of the housing 200, for example. The air inlet port 231 is formed on the first sidewall 230 of the case 200, for example, the first sidewall 230 may be formed at the other lateral side of the case 200, and the air inlet port 231 may be disposed at the bottom center of the first sidewall 230. The airflow actuation device 400 is secured to the second side wall 240 of the housing 200 and is positioned below the outlet port 221.

With the above-described structure, the gas flowing through the gas flow channel 280 can flow in an obliquely upward direction by the gas flow actuating device 400, and the gas flow path through the gas flow channel 280 is prolonged.

The housing 200 also has third and

fourth sidewalls

250 and 260, first and second guide surfaces 271 and 272, and third and fourth guide surfaces 273 and 274.

Wherein the third sidewall 250 and the fourth sidewall 260 respectively extend upward from the bottom wall 210 to the top wall 220 and enclose a cylinder with a top opening together with the first sidewall 230 and the second sidewall 240. In one example, the first sidewall 230 is substantially parallel to the second sidewall 240, and the third sidewall 250 is substantially parallel to the fourth sidewall 260.

The first and second diversion surfaces 271 and 272 extend from the inner surface of the first side wall 230 to the inner surface of the third side wall 250 and the inner surface of the fourth side wall 260, respectively, and form an obtuse angle with the inner surface of the first side wall 230 to define the first section 281. The first flow guide surface 271 may extend from an inner surface of the end section of the first side wall 230 proximate the third side wall 250 to an inner surface of the end section of the third side wall 250 proximate the first side wall 230. The second flow guide surface 272 may extend from an inner surface of the end section of the first side wall 230 adjacent to the fourth side wall 260 to an inner surface of the end section of the fourth side wall 260 adjacent to the first side wall 230.

The third and fourth diversion surfaces 273 and 274 extend from the inner surface of the second side wall 240 to the inner surface of the third side wall 250 and the inner surface of the fourth side wall 260, respectively, and form an obtuse angle with the inner surface of the second side wall 240 to define the second section 282. The third flow guide surface 273 may extend from an inner surface of the end section of the second side wall 240 adjacent to the third side wall 250 to an inner surface of the end section of the third side wall 250 adjacent to the second side wall 240. The fourth flow guide surface 274 may extend from an inner surface of the end section of the second side wall 240 proximate the fourth side wall 260 to an inner surface of the end section of the fourth side wall 260 proximate the second side wall 240.

In one example, the top wall 220, the bottom wall 210, the first sidewall 230, the second sidewall 240, the third sidewall 250, the fourth sidewall 260, the first flow guiding surface 271, the second flow guiding surface 272, the third flow guiding surface 273, and the fourth flow guiding surface 274 of the housing 200 may all be manufactured by an integral molding process. With the above structure, since the housing 200 can be mass-produced by an integral molding process, on the one hand, the assembling process of the whole oxygen treatment device 10 can be simplified, and on the other hand, the consistency of the product can be ensured.

In one example, the top wall 220 of the housing 200 is removably disposed. And the edge of the top wall 220 of the housing 200 may be fixedly connected with the edge of the top opening to achieve a seal. The connection mode includes but is not limited to screw connection, bonding or clamping connection and the like. The oxygen discharge port 222 and the liquid injection port 223 may be provided on the top wall 220 of the housing 200, respectively.

In one example, the top wall 220 of the housing 200 is connected with a flap extending downwardly from an edge of the top wall 220 to define a lower opening.

The vertical length of the folded edge can be adjusted according to actual needs so as to adapt to different scenes. The vertical length of the flap is substantially equivalent to the depth of the lower opening. The edge of the lower opening is attached to the edge of the top opening of the cylinder body surrounded by the first side wall, the second side wall, the third side wall and the fourth side wall together, so that sealing is realized.

Fig. 12 is a schematic structural view of an oxygen treatment device 10 according to another embodiment of the present utility model. As shown in fig. 12, when the vertical length of the flange is small, in order to avoid the inability to assemble the gas path communicating tube 370 due to the small space, a light hole may be opened in the top wall 220 of the housing 200 so that at least a portion of the gas path communicating tube 370 protrudes to the outside of the housing 200 therethrough.

The embodiment of the utility model also provides a refrigeration and freezing device 20. The refrigerating and freezing device 20 according to the embodiment of the present utility model may be a refrigerator, or may be a refrigerator, a freezer or a refrigerating apparatus having a low-temperature storage function, for example. Fig. 13 is a schematic structural view of a refrigerating and freezing apparatus 20 according to an embodiment of the present utility model. The refrigeration and freezer 20 includes a cabinet 600 and the oxygen treatment apparatus 10 of any of the above embodiments. The interior of the case 600 defines a storage space 610. The oxygen treatment device 10 is used to regulate the oxygen content of the storage space 610.

The electrode pair assembled in the oxygen reaction chamber 300 is used to generate oxygen-deficient gas or oxygen-enriched gas through electrochemical reaction to supply to the storage space 610, thereby making the storage space 610 create a low oxygen fresh-keeping atmosphere and a high oxygen fresh-keeping atmosphere.

The air outlet port 221 of the housing 200 of the oxygen treatment device 10 communicates with the storage space 610, for example, may communicate with the storage space 610 via an air return line. Oxygen-depleted gas or oxygen-enriched gas is sent out through the outlet port 221, thereby adjusting the oxygen content of the storage space 610.

In one example, storage space 610 may be a hypoxic fresh-keeping space; the electrode pairs are used to consume oxygen in the gas flowing into the gas flow channel 280 through an electrochemical reaction to produce an oxygen-depleted gas. In this case, in a further example, the high-oxygen fresh-keeping space may be further defined in the case 600. The high oxygen fresh space can be communicated with the oxygen discharge port 222 on the shell 200 through a pipeline to receive oxygen from the oxygen discharge port 222.

In another example, storage space 610 may be a high oxygen fresh space. The electrode pair is used for generating oxygen through electrochemical reaction and is discharged through the vent. The vent of the oxygen treatment assembly 300 may be connected to the gas flow channel 280 and to the gas outlet 221, and the gas outlet 221 may be connected to the high-oxygen fresh-keeping space through a pipeline, so as to convey oxygen generated by the electrochemical reaction to the high-oxygen fresh-keeping space.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims

1. An oxygen treatment device, characterized by comprising:

2. The oxygen treatment device according to claim 1, wherein,

each liquid storage bin is provided with a liquid path communication port; the liquid path communication port is positioned at the bottom section of the liquid storage bin; and is also provided with

3. The oxygen treatment device according to claim 2, wherein,

the top section of each liquid storage bin is provided with a gas path communication port; and is also provided with

4. An oxygen treatment device according to claim 3, wherein,

each liquid storage bin comprises an upper bin body and a lower bin body which are communicated and arranged up and down; the upper bin body is used for circulating gas, and the lower bin body is used for storing liquid; and is also provided with

5. The oxygen treatment device according to claim 4, wherein,

the liquid supplementing port is arranged on the upper bin body of the liquid amount regulating bin; and is also provided with

6. The oxygen treatment device according to claim 5, wherein,

an isolation bin which is communicated with the liquid supplementing port and is arranged at intervals with the gas circuit communication port is arranged in the upper bin body of the liquid amount regulating bin; a liquid outlet is formed in the bottom of the isolation bin and is communicated with the lower bin body of the liquid amount adjusting bin; and is also provided with

7. The oxygen treatment device according to claim 4, wherein,

the oxygen treatment device further comprises at least one electrode pair, one electrode pair being assembled to the lower chamber body of one oxygen reaction chamber; and is also provided with

8. The oxygen treatment device according to claim 7, wherein,

the liquid storage bins are arranged at intervals to form an air flow gap; the lower bin body is provided with at least one lateral opening; and is also provided with

9. The oxygen treatment device according to claim 8, wherein,

the liquid storage bin is flat; and is also provided with

10. The oxygen treatment device of claim 1, further comprising:

at least one connecting shaft; and is also provided with

11. The oxygen treatment device according to claim 10, wherein,

the number of the connecting shafts is four, and four shaft holes are formed in the wall of each liquid storage bin; wherein the method comprises the steps of

12. The oxygen treatment device of claim 1, further comprising:

13. The oxygen treatment device of claim 12, further comprising:

14. A refrigeration and freezer comprising:

the box body is internally provided with a storage space; and

the oxygen treatment device of any one of claims 1-13, for regulating the oxygen content of the storage space.