Fuel cell packaging structure and fuel cell

Abstract

The utility model relates to a fuel cell packaging structure and a fuel cell. The fuel cell packaging structure comprises a metal packaging shell, a resin shell and a cover plate, the metal packaging shell is provided with an inner cavity for accommodating a battery cell and a battery cell inlet communicated with the inner cavity, and the metal packaging shell is provided with a window; the resin shell is wrapped outside the metal packaging shell and seals the window; and the sealing cover is used for sealing the cell inlet. According to the fuel cell packaging structure disclosed by the utility model, the window is formed in the metal packaging shell, and the metal packaging shell is sealed by the resin shell, so that the weight of the whole fuel cell packaging structure can be reduced, and the fuel cell applying the fuel cell packaging structure disclosed by the utility model can have higher efficiency and longer service life; and the method can be applied to more occasions.

Description

Technical Field

[0001] The present disclosure relates to the technical field of fuel cells, and in particular, to a fuel cell packaging structure and a fuel cell using the fuel cell packaging structure. Background Art

[0002] Fuel cell packaging is an important component of the battery. At present, the fuel cell packaging shell is usually made of metal materials such as all-aluminum alloy and manufactured using mechanical processing technology. The processing cycle is long, the cost is high and the weight is heavy, which seriously affects the overall quality and power of the battery, increases the operating cost of the battery, and affects the economy of the fuel cell. Utility Model Content

[0003] An object of the present disclosure is to provide a fuel cell packaging structure that can effectively reduce the weight of the fuel cell.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a fuel cell packaging structure, comprising: a metal packaging shell, the metal packaging shell having an inner cavity for accommodating a battery cell and a battery cell inlet connected to the inner cavity, and a window is provided on the metal packaging shell; a resin shell, the resin shell is wrapped around the outside of the metal packaging shell and seals the window; and a cover plate, used to close the battery cell inlet.

[0005] Optionally, the metal packaging shell is a rectangular body, and a plurality of windows are provided and distributed on each surface of the metal packaging shell.

[0006] Optionally, the rectangular body includes two first planes, two second planes, and a bottom surface, the window includes a first window and a second window, the first window is located on the first plane, the second window is located on the second plane and the bottom surface, and the area of ​​the first window is larger than that of the second window.

[0007] Optionally, the window is rectangular.

[0008] Optionally, the resin shell is a rectangular body adapted to match the shape of the metal packaging shell, and has an insertion opening for the metal packaging shell to enter the resin shell.

[0009] Optionally, a step groove is provided at the entrance of the battery cell, and a flange is provided on the cover plate, and the flange can cooperate with the step groove to fix the cover plate to the metal packaging shell.

[0010] Optionally, connecting holes are provided on the flange and the step groove, the flange and the connecting holes on the step groove are arranged opposite to each other, and fastening bolts are provided in the connecting holes.

[0011] Optionally, the resin shell has a thickness of 0.1-10 mm.

[0012] Optionally, the metal packaging shell is made of aluminum alloy material.

[0013] According to a second aspect of the present disclosure, a fuel cell is also provided, comprising a battery cell and the fuel cell packaging structure described in the above embodiment, wherein the battery cell is located in the inner cavity of the metal packaging shell.

[0014] Compared with the prior art, the utility model has the following advantages: the fuel cell packaging structure of the utility model includes a metal packaging shell, a resin shell and a cover plate. By opening a window in the metal packaging shell and then sealing the metal packaging shell with the resin shell, the weight of the entire fuel cell packaging structure can be reduced, so that the fuel cell using the fuel cell packaging structure of the utility model can have higher efficiency and longer service life, and can be used in more occasions.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a schematic structural diagram of a fuel cell packaging structure provided in an exemplary embodiment of the present disclosure;

[0018] Figure 2 is a schematic structural diagram of a metal packaging shell in a fuel cell packaging structure provided in an exemplary embodiment of the present disclosure;

[0019] Figure 3 is a partially enlarged cross-sectional view of a fuel cell packaging structure provided in an exemplary embodiment of the present disclosure.

[0020] Description of Reference Numerals

[0021] 1-metal packaging shell; 11-inner cavity; 12-cell entrance; 121-step groove; 13-first plane; 14-second plane; 15-bottom surface; 16-connection hole; 17-fastening bolt;

[0022] 2-resin shell; 21-socket;

[0023] 3-cover plate; 31-flange;

[0024] 4-window; 41-first window; 42-second window. DETAILED DESCRIPTION

[0025] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0026] In the present disclosure, unless otherwise stated, directional words such as "upper, lower, high, low, top, bottom" generally refer to the position of the corresponding component or structure in the direction of gravity. Figure 1 The directions of the drawings shown. "Inside and outside" refer to the inside and outside of the corresponding component outline. In addition, it should be noted that the terms used, such as "first, second", etc., are to distinguish one element from another and have no order or importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0027] For ease of understanding, please refer to the attached Figures 1 to 3 , the specific structure and working principle of the fuel cell packaging structure disclosed in the present invention are explained in detail in combination with the embodiments.

[0028] In one embodiment of the present disclosure, see Figure 1 and Figure 2 The fuel cell packaging structure disclosed in the present invention includes a metal packaging shell, a resin shell and a cover plate. Among them, the metal packaging shell 1 has an inner cavity 11 and a battery cell inlet 12 connected to the inner cavity 11. The battery cell can enter the inner cavity of the metal packaging shell 1 through the battery cell inlet 12, and then the battery cell inlet 12 is packaged through the cover plate 3. A plurality of windows 4 are also provided on the metal packaging shell 1. The windows 4 penetrate the metal packaging shell 1 and are connected to the inner cavity 11 of the metal packaging shell 1. By providing the windows 4, the weight of the metal packaging shell 1 can be effectively reduced, thereby reducing the weight of the entire fuel cell and improving the working efficiency of the fuel cell. However, since the windows 4 are provided on the metal packaging shell 1, in order to ensure the sealing of the metal packaging shell 1, it is necessary to provide a resin shell 2 on the outside of the metal packaging shell 1. The resin shell 2 can wrap the outside of the metal packaging shell 1, thereby playing a role in sealing the windows 4 to ensure the sealing of the metal packaging shell 1.

[0029] Furthermore, even if a resin shell 2 is added to the outside of the metal packaging shell 1, since the weight of the resin shell 2 is lighter than that of metal, the weight of the entire fuel cell packaging structure will not be heavier than that of a conventional fuel cell packaging shell made only of metal by sealing the metal packaging shell 1 through the resin shell 2. The resin shell 2 also has good insulation and corrosion resistance, which can improve the service life of the fuel cell packaging structure and the safety during use.

[0030] In one embodiment of the present disclosure, see Figure 1 and Figure 2 The metal packaging shell 1 is a rectangular body, and a plurality of windows 4 are provided, distributed on each surface of the metal packaging shell 1. With such an arrangement, on the one hand, since the metal packaging shell 1 of the rectangular body is easy to process, it can be assembled by a plurality of rectangular plates, and the windows 4 can be processed on the rectangular plates in advance, avoiding the need to process on the assembled rectangular body, thereby improving the manufacturing efficiency of the fuel cell packaging structure. On the other hand, the plurality of windows 4 can further reduce the weight of the metal packaging shell 1, making the weight of the entire fuel cell lighter. Of course, in other embodiments, the metal packaging shell 1 can also be of other shapes, such as cylindrical or trapezoidal, which can be determined according to actual conditions, such as the difficulty of processing, the efficiency of processing, etc., and the present disclosure does not limit this.

[0031] In one embodiment of the present disclosure, see Figure 1 and Figure 2 The rectangular body includes two first planes 13, two second planes 14 and a bottom surface 15. The two first planes 13 are arranged opposite to each other, and the two second planes 14 are also arranged opposite to each other. The edges of the first planes 13 and the second planes 14 are vertically connected to each other, and the bottom surface 15 is connected to the bottom edges of the first planes 13 and the second planes 14, thereby forming a rectangular metal packaging shell 1. In this embodiment, the area of ​​the first plane 13 is larger than the area of ​​the second plane 14, and a plurality of first windows 41 are arranged on the first plane 13, and a plurality of second windows 42 are arranged on the second plane 14 and the bottom surface 15. The area of ​​the first window 41 is larger than the area of ​​the second window 42. With such an arrangement, the rectangular body can, on the one hand, be provided with different windows 4 according to the size of the plane, so that the area of ​​the entire metal packaging shell 1 can be better utilized. On the other hand, the rectangular shell is easy to manufacture, which can improve the manufacturing efficiency of the fuel cell packaging structure.

[0032] In one embodiment of the present disclosure, see Figure 1 and Figure 2 , the shape of the window 4 is rectangular. This arrangement is made because the rectangular window 4 is easy to process, and different sizes of rectangular molds can be selected according to different metal packaging shells 1 to complete the processing of the window 4. At the same time, the rectangular window 4 can also effectively utilize the space on the metal packaging shell 1, and it is convenient to arrange multiple windows 4 according to the size of the space, thereby further reducing the weight of the fuel cell packaging structure. Of course, in other embodiments, the shape of the window 4 can also be other, such as circular, triangular, etc., which can be determined according to actual conditions, and the present disclosure does not limit this.

[0033] In one embodiment of the present disclosure, see Figure 1 and Figure 2In order to facilitate the sealing of the rectangular metal packaging shell 1, the resin shell 2 is also set to a rectangular shape, and a socket 21 is set on the resin shell 2, so that the metal packaging shell 1 can enter the inside of the resin shell 2 through the socket 21 to complete the sealing of the metal packaging shell 1. The sealing connection method can be that after the metal packaging shell 1 enters the resin shell 2, the resin shell 2 is melted by heating and then cooled to complete the connection and sealing between the resin shell 2 and the metal packaging shell 1, or glue or other viscous substances are applied to the inside of the vertical shell 2 to bond the resin shell 2 to the metal packaging shell 1, or it can be directly assembled with the outside of the metal packaging shell 1 through other components, and of course it can also be other connection methods known to those skilled in the art, which will not be elaborated here.

[0034] In one embodiment of the present disclosure, see Figure 2 and Figure 3 After the battery cell enters the inner cavity 11 of the metal packaging shell 1 through the battery cell inlet 12 on the metal packaging shell 1, the battery cell inlet 12 needs to be sealed by the cover plate 3 to prevent the battery cell in the inner cavity 11 from escaping. In this embodiment, a step groove 121 is provided at the battery cell inlet 12, and a flange 31 is provided on the cover plate 3. When the cover plate 3 needs to be fixedly connected to the battery cell inlet 12, the flange 31 on the cover plate 3 needs to be connected with the step groove 121 at the battery cell inlet 12, and then the cover plate 3 is fixed. The flange 31 and the step groove 121 can improve the sealing between the cover plate 3 and the battery cell inlet 12, as well as the stability of the connection, to prevent the cover plate 3 from loosening during the movement of the fuel cell.

[0035] In one embodiment of the present disclosure, see Figure 2 and Figure 3 , connection holes 16 are provided on the flange 31 and the step groove 121, and the number of connection holes 16 on the flange 31 and the step groove 121 are arranged relatively to each other. When the cover plate 3 needs to be fixedly connected to the battery cell entrance 12, the cover plate 3 needs to be placed at the battery cell entrance 12 first, so that the flange 31 on the cover plate 3 and the step groove 121 on the battery cell entrance 12 are aligned, and the connection holes 16 on both are also aligned synchronously, and then the fastening bolts 17 are screwed into the connection holes 16 on both, and the fixed connection between the cover plate 3 and the battery cell entrance 12 can be completed. Of course, in other embodiments, the connection between the cover plate 3 and the battery cell entrance 12 can also be in other forms, such as welding, bonding, etc., which will not be elaborated here.

[0036] In one embodiment of the present disclosure, the thickness of the resin shell is 0.1-10 mm. Metal packaging shells 1 of different metal materials and different numbers of windows 4 on the metal packaging shell 1 will affect the thickness of the resin shell 2 used to seal the metal packaging shell 1. Setting the thickness to 0.1-10 mm can meet the sealing requirements of most metal packaging shells 1 of different materials and metal packaging shells 1 with different numbers of windows 4. In addition, the resin shell 2 with a thickness of 0.1-10 mm will not have a large weight, thereby increasing the weight of the entire fuel cell packaging structure.

[0037] In one embodiment of the present disclosure, the metal packaging shell 1 is made of aluminum alloy. The aluminum alloy material has a light weight and good corrosion resistance, thereby improving the service life of the entire metal packaging shell 1 and the stability during use, and making the metal packaging shell 1 light and easy to produce and manufacture. Of course, in other embodiments, the metal packaging shell 1 can be made of other metal materials, such as stainless steel or other metal alloy materials.

[0038] The material of the resin shell 2 can be made of a polymer resin material that is insulating, corrosion-resistant, fire-retardant, resistant to high and low temperatures, and has a certain degree of elasticity. For example, it can be organic silicone, PPO, PEN, PC / ABS material, PPE, PBT, carbon fiber reinforced plastic (CFRP) and other resin / modified resin materials, etc., so that the resin shell 2 can have a lighter weight and better sealing performance, ensuring that the fuel cell will not leak during use.

[0039] When the fuel cell packaging structure disclosed in the present invention is used, it is necessary to install the battery cell. During the installation process, the battery cell needs to be first placed into the inner cavity 11 through the battery cell inlet 12 on the metal packaging shell 1, and then the cover plate 3 is placed at the battery cell inlet 12 so that the flange 31 on the cover plate 3 and the step groove 121 at the battery cell inlet 12 are connected to each other, and finally, the fastening bolts 17 are screwed into the connecting holes 16 at the cover plate 3 and the battery cell inlet 12 to complete the fixation of the cover plate 3, and then the subsequent processes are carried out to complete the production of the entire fuel cell.

[0040] In a second aspect of the present disclosure, a fuel cell is provided. The fuel cell of the present disclosure includes the packaging structure of the fuel cell described in the above embodiment and a battery cell, and the battery cell is located in the inner cavity of the metal packaging shell 1 in the fuel cell packaging structure. The fuel cell of the present disclosure has a light weight, so it can be used in more occasions and environments, such as in batteries, and has a high efficiency and a long life.

[0041] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0043] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A fuel cell packaging structure, It is characterized in that include: A metal packaging shell, wherein the metal packaging shell has an inner cavity for accommodating the battery cell and a battery cell inlet communicating with the inner cavity, and the metal packaging shell is provided with a window; A resin shell, the resin shell is wrapped around the outside of the metal packaging shell and seals the window; A cover plate is used to close the battery cell entrance.

2. The fuel cell packaging structure according to claim 1, It is characterized in that The metal packaging shell is a rectangular body, and a plurality of windows are provided and distributed on each surface of the metal packaging shell.

3. The fuel cell packaging structure according to claim 2, It is characterized in that The rectangular body includes two first planes, two second planes, and a bottom surface. The window includes a first window and a second window. The first window is located on the first plane, and the second window is located on the second plane and the bottom surface. The area of ​​the first window is larger than that of the second window, and the first plane is larger than the second plane.

4. The fuel cell packaging structure according to claim 2, It is characterized in that The window is rectangular.

5. The fuel cell packaging structure according to claim 2, It is characterized in that The resin shell is a rectangular body, adapted to the shape of the metal packaging shell, and has an insertion opening for the metal packaging shell to enter the resin shell.

6. The fuel cell packaging structure according to claim 2, It is characterized in that A step groove is arranged at the entrance of the battery cell, and a flange is arranged on the cover plate, and the flange can cooperate with the step groove to fix the cover plate to the metal packaging shell.

7. The fuel cell packaging structure according to claim 6, It is characterized in that The flange and the step groove are provided with connecting holes, the flange and the connecting holes on the step groove are arranged opposite to each other, and fastening bolts are arranged in the connecting holes.

8. The fuel cell packaging structure according to claim 1, It is characterized in that The thickness of the resin shell is 0.1-10 mm.

9. The fuel cell packaging structure according to claim 1, It is characterized in that The metal packaging shell is made of aluminum alloy material.

10. A fuel cell, It is characterized in that It comprises a battery cell and the fuel cell packaging structure according to any one of claims 1 to 9, wherein the battery cell is located in the inner cavity of the metal packaging shell.

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