Split type metal fuel cell lighting device capable of floating on water surface

Abstract

The utility model discloses a split type metal fuel cell lighting device capable of floating on the water surface, which aims at solving the problems that the existing metal fuel cell product is large in volume and electrolyte is easy to leak, the device is formed by connecting a battery and a lamp body through a lead, the cavity of the battery is hollow, an air electrode is adhered to the lower part and is compacted and sealed by a pressing plate, and the lamp body is connected with the air electrode. The metal electrode is mounted on the other side of the lower part and fixed by a screw, and a contact area is coated with sealant for corrosion prevention; the PCB can slide along the guide column, a conductive mechanism is formed through the conductive screw and the metal electrode, good contact between the PCB and the metal electrode is ensured through the spring, the switch and the waterproof breathable film cover the battery and are fixed through bonding or ultrasonic welding, the lamp body comprises the lampshade, the LED lamp and the switch, the battery of the device can completely float on the water surface, and the split type design enables lighting use to be more flexible. The sealing waterproof structure avoids electrolyte leakage, the waterproof breathable film ensures that the battery stably works in a complex environment, the defects in the prior art are effectively overcome, and the battery has a good application prospect.

Description

Technical Field

[0001] This utility model relates to the field of metal fuel cell technology, specifically a split-type metal fuel cell lighting device that can float on water. Background Technology

[0002] A metal fuel cell is a device that generates electricity by reacting oxygen from the air with metal. Its core structure includes an air electrode, a metal electrode, and an electrolyte. The air electrode adsorbs oxygen from the air, catalytically reduces it, and then reacts with water to generate OH- ions. The metal electrode undergoes electrochemical dissolution and reacts with OH- ions to form metal hydroxides. Commonly used metal electrodes include aluminum, magnesium, and zinc electrodes. The electrolyte is divided into neutral electrolytes and strongly alkaline electrolytes. Neutral electrolytes are mainly aqueous solutions of sodium chloride, potassium chloride, or ammonium chloride, while strongly alkaline electrolytes are mainly aqueous solutions of sodium hydroxide or potassium hydroxide.

[0003] Because neutral electrolytes are widely available—seawater, brine, energy drinks, and even urine can be used directly—metal fuel cell products using neutral electrolytes are widely used in civilian applications, such as saltwater lamps, seawater lamps, saltwater generators, and outdoor emergency power supplies. These civilian products typically use magnesium or aluminum electrodes; the battery is activated by adding saltwater or seawater for lighting or as an emergency power source.

[0004] However, existing technologies have the following drawbacks:

[0005] Metal fuel cells produce solid metal hydroxides during operation. These products accumulate in the electrolyte, degrading the battery's performance. Therefore, metal fuel cell products require a larger amount of electrolyte and need to be replaced periodically. The design often necessitates a large cavity for electrolyte storage, resulting in a larger product size.

[0006] The air electrode needs to be in contact with air on one side and with the electrolyte on the other. In product design, holes are usually made on the surface of the cavity to bond the air electrode to the cavity surface. If the product design is poor or the assembly process is inadequate, the electrolyte can easily leak from the contact surface between the air electrode and the cavity.

[0007] During the operation of a metal fuel cell, a certain amount of hydrogen is produced by side reactions. This hydrogen needs to be discharged outside the chamber. Therefore, the chamber is usually designed as a semi-open chamber. Although this makes it convenient to replace the electrolyte and discharge the hydrogen, it also has the problems of large volume and easy leakage mentioned above.

[0008] To address these issues, this invention provides a split-type metal fuel cell lighting device that can float on water. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides an open-type metal fuel cell and lighting device, solving the problems of large product size and easy electrolyte leakage in existing technologies. This allows the battery to float completely on the water surface, and the lighting device and battery are designed separately for easy use.

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution: a metal fuel cell and lighting device that can float on water, comprising a battery and a lamp body, which are connected by a wire. The battery part includes a battery cavity, a battery cover, an air electrode, an air electrode pressure plate, a metal electrode, a PCB, a spring, an LED switch, a waterproof and breathable membrane, and conductive screws and fixing screws. The battery cavity is hollow, and the air electrode is bonded to the lower part of the battery cavity and pressed firmly by the air electrode pressure plate to form a sealed structure with the lower part of the battery cavity.

[0011] Preferably, a metal electrode is installed on the other side of the lower part of the battery cavity, and the metal electrode is fixed to the battery cavity by screws; a PCB guide post is designed on the air electrode pressure plate, the PCB is installed on the guide post and can slide up and down along the guide post, and a conductive screw is soldered on the PCB. After the conductive screw passes through the battery cavity, it contacts the metal electrode fixed on the battery cavity to form a conductive mechanism.

[0012] Preferably, the area where the metal electrode contacts the battery cavity is coated with sealant to protect the contact area between the conductive screw and the metal electrode from corrosion.

[0013] Preferably, the battery cover is fixedly installed with an LED switch and a waterproof and breathable membrane, and the battery cover is fixedly installed on the battery cavity by adhesive or ultrasonic welding.

[0014] Preferably, a spring is also installed on the upper part of the PCB. The spring passes through the guide post on the air electrode pressure plate, with its lower end pressing on the PCB and its upper end pressing on the battery cover. The spring force ensures that the conductive screw on the PCB is pressed against the metal electrode, thus ensuring good conductivity.

[0015] Preferred configuration: The lamp body consists of two parts: a lampshade and an LED light. The lamp body is equipped with an LED switch. Because the battery has a sealed, waterproof, and hollow internal structure, and the metal electrodes at the bottom of the battery are relatively heavy, when the battery is placed on the water surface, the metal electrodes and air electrodes will be submerged, while the upper part of the battery will float on the surface, like a buoy. At this time, adding electrolytes such as sodium chloride or potassium chloride to the water will connect the air electrodes and metal electrodes, and the LED light will illuminate when the LED switch is turned on. Alternatively, the product can be placed directly in seawater or a saltwater lake, where the battery will float on the surface, and the LED light will illuminate when the LED switch is turned on.

[0016] Preferred configuration: The top of the battery cover is covered with a waterproof and breathable membrane. When the battery is discharging, oxygen can enter the battery, while water is blocked from entering, ensuring that the battery can float on the water and work normally even in windy and turbulent conditions.

[0017] Beneficial effects

[0018] This invention provides a split-type metal fuel cell lighting device that can float on water. Compared with the prior art, it has the following advantages:

[0019] 1. This water-floating, split-type metal fuel cell lighting device eliminates the need for a traditional cavity design in the battery section. It features a completely waterproof structure and can float directly on the water surface (such as seawater or saltwater containers). This eliminates the size limitations imposed by the cavity, resulting in a smaller battery size that is easy to carry. Furthermore, the lighting device and battery are designed separately and connected by a long wire. The lighting device can be placed on the battery for use together or removed separately and placed in other areas that require lighting, making its use more flexible and diverse.

[0020] 2. This split-type metal fuel cell lighting device that can float on water has a sealed and waterproof internal structure, which avoids the problem of electrolyte leakage from the contact surface between the air electrode and the cavity. The top of the battery cover is covered with a waterproof and breathable membrane, which can ensure that oxygen can enter the interior smoothly when the battery is discharging, and can also block water from entering the battery, ensuring that the battery can float stably on the water and work normally in various environments (such as wind and waves). Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the external structure of this utility model;

[0023] Figure 2 This is a three-dimensional view of the disassembled structure of the lamp body and lampshade of this utility model;

[0024] Figure 3 This is the utility model Figure 2 Cross-sectional three-dimensional view;

[0025] Figure 4 This is a three-dimensional view of the top structure of this utility model;

[0026] Figure 5This is a three-dimensional cross-sectional view of the internal structure of the battery of this utility model;

[0027] Figure 6 This is an exploded view of the overall structure of this utility model.

[0028] In the diagram: 1. Lamp body; 11. Lamp cover; 12. LED lamp; 13. LED lamp switch; 14. Waterproof and breathable membrane; 2. Battery; 21. Battery cavity; 22. Metal electrode; 23. Metal electrode fixing screw; 24. Battery top cover; 25. Air electrode pressure plate; 26. Air electrode; 27. PCB; 28. Spring; 29. ​​Conductive screw; 3. Wire. Detailed Implementation

[0029] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0030] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Reference Figures 1 to 6This application provides a split-type metal fuel cell lighting device that can float on water, including: a battery 2 and a lamp body 1. The battery 2 and the lamp body 1 are connected by a wire 3. The battery 2 includes: a battery cavity 21, which is hollow; a battery cover 24, which is fixedly installed on the battery cavity 21; an air electrode 26, which is bonded to the lower part of the battery cavity 21; an air electrode pressure plate 25, which is used to compact the air electrode 26 and form a sealed structure with the lower part of the battery cavity 21; a metal electrode 22, which is installed on the other side of the lower part of the battery cavity 21 and fixed to the battery cavity 21 by a metal electrode fixing screw 23; a PCB 27, which is installed on the PCB guide post of the air electrode pressure plate 25 and can slide up and down along the guide post; and a conductive screw 29, which is soldered to the PCB 27, passes through the battery cavity 21 and connects to the metal electrode 26. 2. Contact to form a conductive mechanism; spring 28, installed on the upper part of PCB27, passes through the guide post of air electrode pressure plate 25, with the lower end pressing on PCB27 and the upper end pressing on battery cover 24; switch, fixedly installed on battery cover 24; waterproof and breathable membrane 14, fixedly installed on battery cover 24; the area where metal electrode 22 contacts battery cavity 21 is coated with sealant; battery cover 24 is fixedly installed on battery cavity 21 by adhesive or ultrasonic welding; lamp body 1 includes: lamp cover 11; LED light 12, set inside lamp cover 11; LED light switch 13, set on lamp body 1; battery 2 has a sealed waterproof and hollow internal structure; metal electrode 22 is located at the lower part of battery 2; when battery 2 is placed on water, metal electrode 22 and air electrode 26 are partially submerged in water, and the upper part of battery 2 floats on the water surface.

[0032] Example 1

[0033] In practice, the battery assembly is performed first. The air electrode 26 is bonded to the lower part of the battery cavity 21, and then the air electrode clamping plate 25 is used to press it firmly to ensure that a sealed structure is formed with the lower part of the battery cavity 21. On the other side of the lower part of the battery cavity 21, the metal electrode 22 is fixed to the battery cavity 21 by the metal electrode fixing screw 23. The area where the metal electrode 22 contacts the battery cavity 21 is coated with sealant to protect the contact point between the conductive screw 29 and the metal electrode 22 from corrosion.

[0034] Install PCB guide posts on the air electrode pressure plate 25, and install PCB 27 on the guide posts so that it can slide up and down along the guide posts; weld conductive screws 29 on PCB 27 so that the conductive screws 29 pass through the battery cavity 21 and contact the metal electrode 22 to form a conductive mechanism.

[0035] An LED switch and a waterproof and breathable membrane 14 are fixedly installed on the battery cover 24. The battery cover 24 is then fixedly installed on the battery cavity 21 by adhesive bonding. A spring 28 is installed on the upper part of the PCB 27. The spring 28 passes through the guide post on the air electrode pressure plate 25, with its lower end pressing on the PCB 27 and its upper end pressing on the battery cover 24. The elastic force of the spring 28 ensures that the conductive screw 29 on the PCB 27 is in close contact with the metal electrode 22, thus achieving good conductivity.

[0036] Assemble the lamp body by installing the LED lamp 12 inside the lamp cover 11 and setting the LED lamp switch 13 on the lamp body 1;

[0037] The battery 2 and the lamp body 1 are connected by the wire 3. When in use, the battery 2 is placed on the surface of the water in a container containing sodium chloride solution, with the metal electrode 22 and the air electrode 26 partially submerged in the water and the upper part of the battery 2 floating on the water surface. The LED switch on the battery cover 24 and the LED switch 13 on the lamp body 1 are turned on, the air electrode 26 and the metal electrode 22 are connected, and the LED light 12 is lit.

[0038] Example 2

[0039] When battery 2 is placed directly into seawater, it floats on the surface while metal electrode 22 and air electrode 26 are partially submerged. The electrolyte in the seawater makes air electrode 26 and metal electrode 22 conductive. When the LED switch is turned on, LED light 12 lights up, providing illumination at the seaside.

[0040] Example 3

[0041] Fill a plastic bag with brine, drop battery 2 into the bag, and battery 2 will float in the brine. Turn on the LED switch, and LED 12 will light up, which can be used for emergency lighting in specific scenarios.

[0042] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A split-type metal fuel cell lighting device that can float on water, characterized in that: include: A battery (2) and a lamp body (1) are connected by a wire (3). The battery (2) comprises: The battery cavity (21) is a hollow design; The battery cover (24) is fixedly installed on the battery cavity (21); An air electrode (26) is bonded to the lower part of the battery cavity (21); An air electrode pressure plate (25) is used to press the air electrode (26) and form a sealed structure with the lower part of the battery cavity (21); A metal electrode (22) is installed on the other side of the lower part of the battery cavity (21) and fixed to the battery cavity (21) by a metal electrode fixing screw (23); PCB (27) is mounted on the PCB guide post of the air electrode pressure plate (25) and can slide up and down along the guide post; The conductive screw (29) is soldered onto the PCB (27), passes through the battery cavity (21), and contacts the metal electrode (22) to form a conductive mechanism; Spring (28) is installed on the upper part of the PCB (27), passes through the guide post of the air electrode pressure plate (25), presses the lower end on the PCB (27), and presses the upper end on the battery cover (24). The switch is fixedly installed on the battery cover (24); A waterproof and breathable membrane (14) is fixedly installed on the battery cover (24).

2. The detachable metal fuel cell lighting device capable of floating on water surface according to claim 1, characterized in that: The area where the metal electrode (22) contacts the battery cavity (21) is coated with sealant.

3. A split-type metal fuel cell lighting device capable of floating on water surface according to claim 1, characterized in that: The battery cover (24) is fixedly installed on the battery cavity (21) by adhesive bonding or ultrasonic welding.

4. A split-type metal fuel cell lighting device capable of floating on water surface according to claim 1, characterized in that: The lamp body (1) includes: Lampshade (11); LED light (12) is disposed inside the lamp cover (11); An LED light switch (13) is mounted on the lamp body (1).

5. A split-type metal fuel cell lighting device capable of floating on water surface according to claim 4, characterized in that: The battery (2) has a sealed, waterproof, and hollow interior, and the metal electrode (22) is located at the bottom of the battery (2).

6. A split-type metal fuel cell lighting device capable of floating on water surface according to claim 4, characterized in that: When the battery (2) is placed on the water surface, the metal electrode (22) and the air electrode (26) are partially submerged in the water, and the upper part of the battery (2) floats on the water surface.

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