Protective structure of hydrogen fuel cell

Abstract

The utility model discloses a protection structure of a hydrogen fuel cell, which comprises an outer shell, a cell cabin and a cooling cabin adjacent to the cell cabin are arranged in the outer shell, a partition plate is arranged between the cell cabin and the cooling cabin, a fan is arranged on the partition plate, the input end of the fan is positioned in the cooling cabin, and the output end of the fan is positioned in the cell cabin. A plurality of refrigeration parts are further arranged in the cooling cabin, the top of the outer shell is open and provided with a protective cover plate, cold energy is provided for the cooling cabin through the refrigeration parts, meanwhile, cold airflow in the cooling cabin is blown into the battery cabin through the fan, wrapping type air cooling and heat exchange are conducted on the battery through the air flow guide cavity, and meanwhile, the battery is cooled through the air flow guide cavity. The air flow subjected to heat exchange enters the cooling cabin again through the first air port, the second air port and the air guide cover for repeated pre-cooling and cooling under circular flowing, so that the circular flowing air is always kept in a relatively low temperature range, and the effect of continuously and efficiently cooling the battery is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen fuel cell technical field, concretely is a kind of protection structure of hydrogen fuel cell. BACKGROUND

[0002] Hydrogen fuel cell is the power generation device that hydrogen and oxygen chemical energy is directly converted into electric energy, and its basic principle is the reverse reaction of electrolysis of water, hydrogen and oxygen are supplied to anode and cathode respectively, hydrogen diffuses outward through anode and electrolyte after reaction, and electron is emitted to cathode through external load, hydrogen fuel cell battery is easy to produce high temperature when reacting, in order to prevent the damage of battery from high temperature, it needs to be protected from high temperature. The patent with announcement number CN110718703B discloses a kind of hydrogen fuel cell high temperature protection structure, it utilizes air suction fan to introduce the outside airflow into water tank through air guide pipe cooling, then after the cooling pipe is used to cool battery main body, by heat dissipation fan, the airflow is discharged, compared with the traditional airflow ventilation heat dissipation, improve the heat dissipation efficiency, and the outside airflow is dissolved by cooling water, so that the dust and other impurities entering water tank along with airflow are dissolved in water, avoid the damage of dust and other impurities to battery main body.

[0003] But the above-mentioned device and scheme still have some deficiencies in actual use, for example, it cools the airflow sucked from outside by water in water tank, and then cools battery main body by cooling pipe, which is essentially a heat exchange process. After the outside airflow and outside temperature are dissolved in water in water tank, the water temperature in water tank will also reach the same temperature as the outside air. Therefore, it can only perform short-term water cooling or intermittent cooling and heat dissipation, which has certain use limitations. Moreover, if the battery is continuously in high load output or used in high temperature environment, the cooling measure is difficult to form continuous and effective cooling for the battery. In view of this, the present application provides a new internal circulation type hydrogen fuel cell protection structure to solve the above-mentioned defects and deficiencies of heat dissipation. SUMMARY

[0004] This part aims to outline some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] Therefore, the purpose of the present application is to provide a protection structure for hydrogen fuel cell to solve the problem of the hydrogen fuel cell high temperature protection structure in the prior art that can only perform short-term water cooling or intermittent cooling and heat dissipation for the battery, which has certain use limitations.

[0006] To achieve the above object, the utility model provides the following technical scheme: A protection structure of hydrogen fuel cell, it includes the outer shell, the outer shell has the battery cabin and the cooling cabin adjacent with battery cabin inside, the baffle has between battery cabin and cooling cabin, be provided with fan on the baffle, the fan input end is located cooling cabin and the output end is located battery cabin, still be provided with a plurality of refrigeration components in cooling cabin, the outer shell top is open and is equipped with the protective cover, the protective cover upper end has the wind scooper, make battery cabin and cooling cabin communicate through the wind scooper,

[0007] Among them, the battery cabin is used for placing the battery, and an air guide cavity is formed between the outer side of the battery and the inner side of the battery cabin and the protective cover.

[0008] As a preferred scheme of the protection structure of the hydrogen fuel cell, the refrigeration component is a semiconductor refrigeration sheet, the heat absorption surface of the semiconductor refrigeration sheet is located inside the cooling cabin, and the heat dissipation surface is located outside the outer shell, and the heat dissipation surface of the semiconductor refrigeration sheet is also provided with a plurality of fins, and the fins are made of graphene.

[0009] As a preferred scheme of the protection structure of the hydrogen fuel cell, one end of the protective cover is provided with a first air inlet corresponding to the battery cabin, and the other end is provided with a second air inlet corresponding to the cooling cabin, and the wind scooper is arranged on the outer side of the upper part of the first air inlet and the second air inlet.

[0010] As a preferred scheme of the protection structure of the hydrogen fuel cell, the inner side of the battery cabin, the bottom, and the bottom of the protective cover located in the battery cabin section are provided with a plurality of support ribs, and the support ribs are provided with a plurality of ventilation grooves distributed densely along the length direction.

[0011] As a preferred scheme of the protection structure of the hydrogen fuel cell, one end of the outer shell is also provided with a heat dissipation cavity adjacent to the cooling cabin, and the heat dissipation cavity is open on the side opposite to the cooling cabin, and the inner side of the opening is provided with a detachable protective mesh.

[0012] As a preferred scheme of the protection structure of the hydrogen fuel cell, the battery cabin is also provided with a temperature sensor and a microcontroller, and the microcontroller is signal connected with the fan, the refrigeration component and the temperature sensor.

[0013] Compared with the prior art, the hydrogen fuel cell protection structure has the beneficial effects that when the battery temperature is too high and needs to be cooled, the control system immediately controls the air fan and the refrigeration component, the refrigeration component provides cold energy to the cooling cabin, the fan blows the cold air in the cooling cabin into the battery cabin, the air flow after heat exchange reenters the cooling cabin through the first and second air inlets and the air guide cover for repeated precooling and temperature reduction, the circulating air flow is always kept in a low temperature range, the battery is continuously and efficiently cooled, the battery protection structure is not affected by the external temperature, and the dustproof effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal protection structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the refrigeration component of the utility model;

[0017] Figure 4 It is a schematic diagram of the half-section structure of the protective cover plate of the utility model.

[0018] In the drawing: 100, outer shell; 110, battery cabin; 120, cooling cabin; 130, partition; 140, heat dissipation cavity; 200, fan; 300, refrigeration component; 310, fin; 400, protective cover plate; 410, air guide cover; 420, first air inlet; 430, second air inlet; 500, support rib; 510, ventilation groove; 600, protective mesh. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0020] Secondly, the utility model is described in detail in combination with the schematic diagram, and in the detailed description of the utility model embodiments, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the utility model herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0021] In order to make the purposes, technical schemes and advantages of the utility model more clear, the specific embodiments of the utility model will be described in further detail below with reference to the drawings.

[0022] Figures 1-4The utility model discloses a whole structure schematic diagram of a protection structure of hydrogen fuel cell shows, please refer to Figures 1-4 The utility model discloses a protection structure of hydrogen fuel cell, including shell body 100, the inside of shell body 100 has battery cabin 110 and with the cooling cabin 120 of battery cabin 110 adjacent, the partition 130 between battery cabin 110 and cooling cabin 120 is provided with fan 200, and the output end of fan 200 input end is located in cooling cabin 120 and is located in battery cabin 110, and the inside of cooling cabin 120 still is provided with a plurality of refrigeration parts 300, and the top of shell body 100 is open and is equipped with the protective cover plate 400, and the upper end of protective cover plate 400 has the wind scooper 410, and the battery cabin 110 and cooling cabin 120 are communicated through the wind scooper 410, wherein, battery cabin 110 is used to insert the battery, and the air flow guide chamber between the outside of battery and battery cabin 110 and the inside of protective cover plate 400 has.

[0023] The refrigeration component 300 is a semiconductor refrigeration sheet, the heat absorption surface of the semiconductor refrigeration sheet is located inside the cooling cabin 120, and the heat dissipation surface is located outside the outer shell 100, and the heat dissipation surface of the semiconductor refrigeration sheet is also distributed with a plurality of fins 310, and the fins 310 are graphene material. It can be understood that the semiconductor refrigeration sheet has the characteristics of simple structure, small size, high unit refrigeration efficiency and long service life. In addition, since the semiconductor refrigeration sheet is refrigerated at the same time, it is also a heat dissipation process, therefore, the fins 310 made of graphene have excellent heat conductivity, can quickly absorb and dissipate the heat discharged by the refrigeration sheet, and improve the operating efficiency of the refrigeration sheet. The protective cover plate 400 is provided with a first air port 420 corresponding to the battery cabin 110 at one end, and a second air port 430 corresponding to the cooling cabin 120 at the other end, and the air baffle 410 is arranged on the outer side of the upper part of the first air port 420 and the second air port 430. The bottom of the battery cabin 110 and the bottom of the battery cabin 110 are provided with a plurality of supporting ribs 500, and the supporting ribs 500 are provided with a plurality of ventilation grooves 510 distributed densely along the length direction. It can be understood that the battery in the battery cabin 110 is erected by the supporting ribs 500, so that the outer circumferential side of the battery cabin 110 and the battery cabin 110 and the protective cover plate 400 form an air guide cavity, and the control can flow freely under the cooperation of the ventilation grooves 510. Specifically, in this embodiment, when the battery temperature is too high and needs to be cooled, the control system drives the fan 200 and the refrigeration component 300 at the same time, provides cold energy to the cooling cabin 120 through the refrigeration component 300, blows the cold air in the cooling cabin 120 into the battery cabin 110 through the fan 200, and carries out the air-cooled cooling and heat exchange of the battery through the air guide cavity. At the same time, the airflow after heat exchange reenters the cooling cabin 120 through the first and second air ports and the air baffle 410 to carry out repeated precooling and cooling, so that the circulating air always maintains a low temperature range, thereby achieving the effect of continuous and efficient cooling of the battery, so that the battery protection structure is not affected by the external temperature, and the dustproof effect is achieved.

[0024] As preferred, further, the outer shell 100 has a heat dissipation cavity 140 adjacent to the cooling cabin 120 at one end, and the heat dissipation cavity 140 is open at the opposite side of the cooling cabin 120, and the inside of the opening is provided with a detachable protective mesh 600. It can be understood that the refrigeration component 300 and the fin 310 are externally protected through the cooperation of the heat dissipation cavity 140 and the protective mesh 600, so that the fin 310 has sufficient heat dissipation space.

[0025] As preferred, further, the battery cabin 110 is also provided with a temperature sensor and a microcontroller, the microcontroller is in signal connection with the fan 200, the refrigeration component 300 and the temperature sensor.

[0026] In summary, the protection structure of the hydrogen fuel cell in the embodiment, in use, the battery in the battery cabin 110 is erected by the support rib 500, so that an air flow guide cavity is formed between the outer circumferential side of the battery cabin 110 and the battery cabin 110 and the protection cover plate 400, and the air can flow freely under the cooperation of the ventilation groove 510. Specifically, in the embodiment, when the battery temperature is too high and needs to be cooled, the control system starts the fan 200 and the refrigeration component 300 immediately, provides cold energy to the cooling cabin 120 through the refrigeration component 300, blows the cold air in the cooling cabin 120 into the battery cabin 110 by the fan 200, and cools and exchanges heat with the battery through the air flow guide cavity. At the same time, the airflow after heat exchange reenters the cooling cabin 120 for repeated precooling and cooling under the circulation, so that the circulating air always keeps in a lower temperature range, thereby achieving the effect of continuous and efficient cooling of the battery.

[0027] Although the utility model has been described above with reference to the embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the utility model can be combined in any way, and the combinations are not described in the specification only for the purpose of saving space and resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A protective structure for a hydrogen fuel cell, characterized by, The application relates to a battery cooling device, which comprises an outer shell (100), wherein the inner part of the outer shell (100) is provided with a battery cabin (110) and a cooling cabin (120) adjacent to the battery cabin (110), a partition plate (130) is arranged between the battery cabin (110) and the cooling cabin (120), a fan (200) is arranged on the partition plate (130), the input end of the fan (200) is located in the cooling cabin (120), the output end of the fan (200) is located in the battery cabin (110), a plurality of refrigeration components (300) are further arranged in the cooling cabin (120), the top of the outer shell (100) is open and is provided with a protective cover plate (400), the upper end of the protective cover plate (400) is provided with a wind guide cover (410), and the battery cabin (110) and the cooling cabin (120) are connected through the wind guide cover (410). The battery cabin (110) is used for placing a battery, and an air guide cavity is arranged between the outer side of the battery and the inner side of the battery cabin (110) and the protective cover plate (400).

2. The protective structure for a hydrogen fuel cell according to claim 1, wherein: The refrigeration component (300) is a semiconductor refrigeration sheet, the heat absorbing surface of the semiconductor refrigeration sheet is located in the cooling cabin (120), the heat radiating surface of the semiconductor refrigeration sheet is located outside the outer shell (100), a plurality of fins (310) are arranged on the heat radiating surface of the semiconductor refrigeration sheet, and the fins (310) are made of graphene.

3. The protective structure for a hydrogen fuel cell according to claim 1, wherein: The protective cover plate (400) is provided with a first air port (420) corresponding to the battery cabin (110) at one end and a second air port (430) corresponding to the cooling cabin (120) at the other end, and the wind guide cover (410) is arranged outside the upper parts of the first air port (420) and the second air port (430).

4. The protective structure for a hydrogen fuel cell according to claim 1, wherein: The inner side, the bottom and the bottom of the protective cover plate (400) located in the battery cabin (110) are provided with a plurality of supporting ribs (500), and the supporting ribs (500) are provided with densely distributed ventilation grooves (510) along the length direction of the supporting ribs (500).

5. The protective structure for a hydrogen fuel cell according to claim 1, wherein: The outer shell (100) is further provided with a heat dissipation cavity (140) adjacent to the cooling cabin (120) at one end, and the heat dissipation cavity (140) is open at the side opposite to the cooling cabin (120), and the inner side of the opening is provided with a detachable protective mesh (600).

6. The protective structure for a hydrogen fuel cell according to claim 1, wherein: The battery cabin (110) is further provided with a temperature sensor and a microcontroller, and the microcontroller is signal-connected with the fan (200), the refrigeration component (300) and the temperature sensor.

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