CN209860057U - Metal bipolar plate mechanism applied to hydrogen energy automobile battery - Google Patents

Abstract

The utility model discloses a metal bipolar plate mechanism is applied to hydrogen energy automobile battery, including battery main part and two ring flanges, battery main part includes shell and inner shell, and two ring flanges configuration sets up the both ends at the inner shell to with shell welded seal, the utility model discloses an erect formula installation of ring flange avoids shell and car inner structure contact, tentatively improves its safeguard measure, the interior shell structure of design, even the shell receives external damage, also can not cause great influence to battery main part's inside, further improves its guard action, holistic airtight measure obtains strengthening simultaneously, through the arc structural design of bipolar plate one side to gas plays the guide effect in the passageway, avoids appearing the acceleration erosion that the edges and corners caused, establishes the composite bed on arc passageway surface, strengthens its corrosivity and electric conductivity.

Description

Metal bipolar plate mechanism applied to hydrogen energy automobile battery

Technical Field

The utility model relates to a hydrogen energy automobile field, in particular to metal bipolar plate mechanism is applied to hydrogen energy automobile battery.

Background

Hydrogen energy automobile: an automobile using hydrogen as the main energy for movement. The principle of the hydrogen fuel cell is that hydrogen is input into the fuel cell, electrons of hydrogen atoms are blocked by a proton exchange membrane and are conducted from a negative electrode to a positive electrode through an external circuit to become an electric energy driving motor, and protons can be synthesized with oxygen through the proton exchange membrane to form pure water mist and then are discharged.

At first, the existing automobile battery does not use a double-layer structure design, when a vehicle is impacted, the battery is easy to damage and leak, the safety is low, the energy conversion amount cannot be changed within a certain time through the adjustment of the battery, and then the use of different power motors is realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a metal bipolar plate mechanism is applied to hydrogen energy automobile battery, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a metal bipolar plate mechanism is applied to hydrogen energy automobile battery, includes battery main part and two ring flanges, battery main part includes shell and inner shell, and two ring flanges are furnished with the cover and are set up the both ends at the inner shell to with shell welded seal, the inside of inner shell is provided with membrane electrode, sealed pad, bipolar plate and end plate by middle to both sides diffusion formula distribution, and is equipped with gas diffusion layer between membrane electrode and the sealed pad, the inside central point of end plate puts and sets up threaded hole, and the screw hole internal screw is provided with accurate bolt, membrane electrode includes proton exchange membrane and catalysis layer, and the catalysis layer distributes in proton exchange membrane's both sides, two of symmetric distribution bipolar plate is external negative pole and anodal circuit respectively.

Preferably, a cavity is formed between the outer shell and the inner shell, the thickness of the cavity is 20mm, the cross sections of the flange plate, the outer shell and the inner shell are all circular structures, and the circular radius of the flange plate is 35mm larger than that of the outer shell.

Preferably, the bipolar plate is connected with the end plate through a plurality of elastic pieces, and the elastic pieces are distributed around the precision bolt in a surrounding manner.

Preferably, one end of the precision bolt extending into the inner shell is connected with the bipolar plate, and is fixedly connected with the precision bolt through a rotating shaft arranged in the bipolar plate.

Preferably, one side of the bipolar plate facing the membrane electrode is provided with a plurality of arc-shaped channels, and the inner wall surfaces of the arc-shaped channels are provided with composite layers made of carbon-containing corrosion-resistant composite materials.

Preferably, the gas diffusion layer comprises a carbon plate, the cross section of the carbon plate is zigzag, a plurality of air holes are uniformly formed in the surface of the carbon plate, and the aperture of each air hole is 0.1-0.5 mm.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the shell is prevented from contacting with an in-vehicle structure through the erection type installation of the flange plate, the protection measures are preliminarily improved, the designed inner shell structure and the outer shell structure cannot cause great influence on the interior of the battery main body even if the shell is damaged by the outside, the protection effect is further improved, and meanwhile, the whole sealing measure is strengthened;

2. the bipolar plate moves by rotating the precision bolt, the elastic part elastically deforms, and meanwhile, the bipolar plate is uniformly stressed in the moving process, the precision bolt is conveniently adjusted under the action of elastic recovery force, so that the width of the gas diffusion layer is changed, the gas diffusion rate is the same by changing the width of the gas diffusion layer, but the gas passing time is shortened due to the shortened width of the gas diffusion layer, the energy conversion amount is increased, and the bipolar plate can be used for a high-power motor in an automobile, and conversely, the bipolar plate can be used for a low-power motor in the automobile;

3. through the arc structural design of bipolar plate one side to gas plays the guide effect in the passageway, the acceleration erosion that the edges and corners caused avoids appearing establishes the composite bed on arc passageway surface, strengthens its corrosion resistance and electric conductivity.

4. Through using the carbon plate in the gas diffusion layer, its contact surface is increased to zigzag structural design to increase its gaseous volume of passing through at a certain extent, guarantee that the required gas of energy conversion is sufficient.

Drawings

Fig. 1 is a schematic view of the overall structure of a metal bipolar plate mechanism applied to a hydrogen energy automobile battery;

fig. 2 is a cross-sectional view of the metal bipolar plate mechanism applied to a hydrogen energy automobile battery;

fig. 3 is a gas diffusion layer structure diagram of the metal bipolar plate mechanism applied to a hydrogen energy automobile battery.

In the figure: 1. a battery main body; 101. a housing; 102. an inner shell; 2. a flange plate; 3. a precision bolt; 4. an end plate; 5. a bipolar plate; 6. a membrane electrode; 61. a catalytic layer; 62. a proton exchange membrane; 7. a gasket; 8. a gas diffusion layer; 81. a carbon plate; 82. air holes are formed; 9. an elastic member; 10. a threaded bore.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Example 1

As shown in fig. 1-3, a metal bipolar plate mechanism is applied to a hydrogen energy automobile battery, and includes a battery main body 1 and two flange plates 2, the battery main body 1 includes an outer shell 101 and an inner shell 102, and the two flange plates 2 are disposed at two ends of the inner shell 102 in a matching manner and are welded and sealed with the outer shell 101, a membrane electrode 6, a sealing pad 7, a bipolar plate 5 and an end plate 4 are disposed inside the inner shell 102 in a diffusion manner from the middle to two sides, a gas diffusion layer 8 is disposed between the membrane electrode 6 and the sealing pad 7, a threaded hole 10 is disposed at the center inside of the end plate 4, a precision bolt 3 is spirally disposed in the threaded hole 10, the membrane electrode 6 includes a proton exchange membrane 62 and a catalytic layer 61, the catalytic layer 61 is disposed at two sides of the proton exchange membrane 62.

As shown in fig. 1, a cavity is formed between the outer shell 101 and the inner shell 102, the thickness of the cavity is 20mm, the cross sections of the flange 2, the outer shell 101 and the inner shell 102 are all circular structures, and the circular radius of the flange 2 is 35mm larger than that of the outer shell 101.

Through the installation of the formula of erectting of ring flange 2, avoid shell 101 and car inner structure contact, tentatively improve its safeguard measure, the interior outer shell structure of design even shell 101 receives external damage, also can not cause great influence to the inside of main battery body 1, further improves its guard action, and holistic airtight measure is strengthened simultaneously.

As shown in fig. 2, the bipolar plate 5 and the end plate 4 are connected by a plurality of elastic members 9, and the elastic members 9 are circumferentially distributed around the precision bolts 3.

As shown in fig. 2, the end of the precision bolt 3 extending into the inner casing 102 is connected to the bipolar plate 5, and is fixedly connected to the precision bolt 3 by providing a rotation shaft in the bipolar plate 5.

Precision bolt 3 through setting up, elastic component 9 and gas diffusion layer 8, through rotating precision bolt 3, make bipolar plate 5 take place to remove, elastic component 9 makes bipolar plate 5 remove the in-process atress even when taking place elastic deformation, under the effect of elastic recovery power, make things convenient for precision bolt 3's adjustment, and then change gas diffusion layer 8's width, size through changing its width, gas diffusion's rate is the same, but because its width shortens, the time that gas passes through also shortens, the volume of energy conversion can improve, can be used to the interior powerful motor of car and use, vice versa, the motor that can be used to interior low-power of car uses.

Example 2

As shown in fig. 1-3, a metal bipolar plate mechanism is applied to a hydrogen energy automobile battery, and based on embodiment 1, a plurality of arc-shaped channels are arranged on one side of a bipolar plate 5 facing a membrane electrode 6, and a composite layer is arranged on the inner wall surface of each arc-shaped channel, and is made of a carbon-containing corrosion-resistant composite material.

Through the arc structural design of 5 one sides of bipolar plate to gas plays the guide effect in the passageway, avoids appearing the acceleration erosion that the edges and corners caused, establishes the composite bed on arc passageway surface, strengthens its corrosion resistance and electric conductivity.

As shown in fig. 3, the gas diffusion layer 8 includes a carbon plate 81, the cross-section of the carbon plate 81 is zigzag, a plurality of air holes 82 are uniformly formed on the surface of the carbon plate 81, and the aperture of each air hole 82 is 0.1-0.5 mm.

By using the carbon plate 81 in the gas diffusion layer 8, the contact surface is increased by the zigzag structural design, so that the gas passing amount is increased to a certain extent, and the sufficient gas required by energy conversion is ensured.

It should be noted that the utility model relates to a metal bipolar plate mechanism applied to a hydrogen energy automobile battery, firstly, the shell 101 is prevented from contacting with the structure in the automobile through the erection type installation of the flange 2, the protection measure is improved primarily, the designed inner and outer shell structure can not cause great influence to the interior of the battery main body 1 even if the shell 101 is damaged by the outside, the protection function is further improved,

then according to the motors with different powers in the automobile, the bipolar plate 5 moves by rotating the precision bolt 3 through the precision bolt 3, the elastic part 9 and the gas diffusion layer 8, the bipolar plate 5 is uniformly stressed in the moving process while the elastic part 9 elastically deforms, the precision bolt 3 is conveniently adjusted under the action of elastic recovery force, the width of the gas diffusion layer 8 is further changed, the gas diffusion rate is the same by changing the width, but the gas passing time is also shortened due to the shortened width, the energy conversion amount is increased, the gas diffusion layer can be used for the motor with high power in the automobile, otherwise, the cruising performance of energy use is improved, and the gas diffusion layer can be used for the motor with low power in the automobile,

external negative and positive pole circuit is connected to bipolar plate 5, realize the power supply, the arc structural design of two bipolar plate 5 one sides, thereby gas plays the guide effect in the passageway, the acceleration erosion that the edges and corners caused avoids appearing, establish the composite bed on arc passageway surface, strengthen its corrosivity and electric conductivity, use carbon plate 81 in the gas diffusion layer 8 simultaneously, the structural design of zigzag, increase its contact surface, thereby increase the volume that its gas passes through at a certain degree, guarantee that the required gas of energy conversion is sufficient.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A metal bipolar plate mechanism is applied to a hydrogen energy automobile battery and is characterized by comprising a battery main body (1) and two flange plates (2), wherein the battery main body (1) comprises an outer shell (101) and an inner shell (102), the two flange plates (2) are arranged at two ends of the inner shell (102) in a matched manner and are welded and sealed with the outer shell (101), a membrane electrode (6), a sealing gasket (7), a bipolar plate (5) and an end plate (4) are arranged in the inner part of the inner shell (102) in a diffused manner from the middle to two sides, a gas diffusion layer (8) is arranged between the membrane electrode (6) and the sealing gasket (7), a threaded hole (10) is formed in the center of the inner part of the end plate (4), a precise bolt (3) is spirally arranged in the threaded hole (10), the membrane electrode (6) comprises a proton exchange membrane (62) and a catalytic layer (61), and the catalytic layer (61), the two bipolar plates (5) which are symmetrically distributed are respectively externally connected with circuits of a cathode and an anode.

2. The metallic bipolar plate mechanism as claimed in claim 1, applied to a hydrogen energy automobile battery, wherein: a cavity is formed between the outer shell (101) and the inner shell (102), the thickness of the cavity is 20mm, the cross sections of the flange plate (2), the outer shell (101) and the inner shell (102) are all of circular structures, and the circular radius of the flange plate (2) is 35mm larger than that of the outer shell (101).

3. The metallic bipolar plate mechanism as claimed in claim 1, applied to a hydrogen energy automobile battery, wherein: the bipolar plate (5) is connected with the end plate (4) through a plurality of elastic pieces (9), and the elastic pieces (9) are distributed around the precision bolt (3) in a surrounding manner.

4. The metallic bipolar plate mechanism as claimed in claim 1, applied to a hydrogen energy automobile battery, wherein: one end of the precision bolt (3) extending into the inner shell (102) is connected with the bipolar plate (5), and is fixedly connected with the precision bolt (3) through a rotating shaft arranged in the bipolar plate (5).

5. The metallic bipolar plate mechanism as claimed in claim 1, applied to a hydrogen energy automobile battery, wherein: the bipolar plate (5) is provided with a plurality of arc-shaped channels on one side facing the membrane electrode (6), and composite layers are arranged on the inner wall surfaces of the arc-shaped channels and made of carbon-containing corrosion-resistant composite materials.

6. The metallic bipolar plate mechanism as claimed in claim 1, applied to a hydrogen energy automobile battery, wherein: the gas diffusion layer (8) comprises a carbon plate (81), the cross section of the carbon plate (81) is zigzag, a plurality of air holes (82) are uniformly formed in the surface of the carbon plate (81), and the aperture of each air hole (82) is 0.1-0.5 mm.