Packaging structure of galvanic pile module

Abstract

The utility model discloses a packaging structure of an electric pile module, which relates to the technical field of hydrogen fuel cell assembly, and comprises a first protective block, a second protective block and a connecting block, the first protective block is arranged at the outer side end of an electric pile monomer at the outermost side, and the first protective block comprises a first base body; a first insulator and a first buffer body which are arranged in sequence are arranged on the end side, facing the galvanic pile single body, of the first base body; the second protection block is arranged between two adjacent galvanic pile monomers, the second protection block comprises a second base body, and the end side, facing the galvanic pile monomers, of the second base body is provided with a second insulator and a second buffer body. According to the packaging structure, the second protection block is arranged between the two adjacent galvanic pile monomers, the two adjacent galvanic pile monomers are supported through the second base body, and the two adjacent galvanic pile monomers are buffered and protected through the second buffer body, so that the requirements of supporting and buffering protection between the two adjacent galvanic pile monomers are met; and collapse of the galvanic pile monomers in the galvanic pile module is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel cell assembly, in particular to a packaging structure of a fuel cell module. Background Art

[0002] A hydrogen fuel cell is a power generation device that converts chemical energy directly into electrical energy. Existing hydrogen fuel cells generally include components such as a housing, a stack module, a hydrogen circulation pump, an air circuit system, a cooling system, a fuel cell control system, and ventilation components. The stack module is composed of at least one stack cell, and a stack cell is composed of multiple stack cells stacked together.

[0003] At present, the stack module of a hydrogen fuel cell is generally assembled by directly stacking multiple stack cells. Metal parts and insulating parts are filled between two adjacent stack cells to ensure the stack pressure and the insulation effect between the metal parts and the core. After multiple stack cells are stacked to form a stack, an insulating plate is installed on the outer peripheral side of the stack, and steel belts or screws are used to fasten it to meet the requirements of the stack in terms of pre-compression and insulation protection. However, this method of assembling the stack module is not easy to operate, and the assembly process is time-consuming, which makes the assembly efficiency of the existing stack module low. Moreover, the screws and insulating plates arranged on the outer peripheral side of the stack lack the function of buffering protection. The stack module is prone to core collapse during use, which affects the service life of the stack module. Utility Model Content

[0004] The purpose of the utility model is to provide a packaging structure of a battery stack module, which can meet the pre-pressure and insulation requirements of the battery stack module, and arrange buffer structures inside and outside the battery stack module to solve the problem of battery stack cell collapse in existing battery stack modules.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A packaging structure of a battery stack module, the battery stack module includes a plurality of stack cells arranged in a stacked manner, the packaging structure includes a first protection block, a second protection block, and a connection block,

[0007] The first protection block is arranged at the outer end of the outermost stack cell, and includes a first base for support, a first insulator is provided on the end side of the first base facing the stack cell, and a first buffer body for fitting the stack cell is provided on the end side of the first insulator facing the stack cell;

[0008] The second protection block is arranged between two adjacent battery stack cells, and includes a second base body for support, and the second base body is provided with a second insulator on the end side facing the battery stack cell, and the second insulator is provided with a second buffer body for fitting the battery stack cell on the end side facing the battery stack cell;

[0009] The connection block is arranged at the end of each battery stack cell along the length direction, and the connection blocks respectively arranged on two adjacent battery stack cells are connected to each other, and the first protection block is connected to the connection block and / or the battery stack cell, and the second protection block is connected to the connection block.

[0010] In some embodiments, there are multiple first protection blocks arranged on the same end side, and the multiple first protection blocks are arranged in an alternating pattern.

[0011] In some embodiments, the first insulator wraps around an outer peripheral side of the first base.

[0012] In some embodiments, a first mounting surface and first protrusions arranged on both sides of the first mounting surface are formed on the end side of the first substrate facing the first buffer body, and the first protrusions extend toward the position of the first buffer body, and the first buffer body is connected to the first mounting surface.

[0013] In some embodiments, a weight-reducing groove for reducing the weight of the first protection block is disposed on the first substrate.

[0014] In some embodiments, there are multiple second protection blocks arranged on the same end side, and the multiple second protection blocks are arranged in an alternating pattern.

[0015] In some embodiments, the second insulator wraps around the outer peripheral side of the second base.

[0016] In some embodiments, a second mounting surface and second protrusions arranged on both sides of the second mounting surface are formed on the end side of the second substrate facing the second buffer body, and the second protrusions extend toward the corresponding second buffer body, which is connected to the second mounting surface.

[0017] In some embodiments, the first substrate and the second substrate are both provided with through holes for connecting with the connecting block.

[0018] In some embodiments, the connection block includes a connection body, on which a connection portion for connecting adjacent connection blocks is disposed, and a connection groove for placing the first protection block or the second protection block is disposed in the connection portion.

[0019] Compared with the prior art, the packaging structure of a battery stack module implemented by the utility model has the following beneficial effects:

[0020] (1) This packaging structure is applied to a battery stack module. By applying a first protective block and a second protective block with supporting, insulating and protective effects, this packaging structure can achieve supporting, insulating and protective effects by assembling only a single component, thereby reducing the number of components for assembling the battery stack module and improving the assembly efficiency of the battery stack module;

[0021] (2) The packaging structure is provided with a second protective block between two adjacent battery stack cells, and provides support for the two adjacent battery stack cells through the second substrate, and provides buffer protection for the two adjacent battery stack cells through the second buffer body, thereby meeting the needs of support and buffer protection between the two adjacent battery stack cells, separating the two adjacent battery stack cells, and the battery stack cells are squeezed on the second buffer layer, effectively preventing the battery stack cells inside the battery stack module from collapsing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a battery stack module in an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of an explosion of a battery stack module in an embodiment of the utility model;

[0024] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0025] Figure 4 yes Figure 2 A partial enlarged view of B in the middle;

[0026] Figure 5 is a cross-sectional schematic diagram of a first protective block in an embodiment of the utility model;

[0027] Figure 6 is a cross-sectional schematic diagram of the second protection block in the embodiment of the utility model;

[0028] Figure 7 It is a schematic diagram of a connecting block in an embodiment of the utility model.

[0029] In the figure, 1. battery stack cell; 2. first protective block; 20. first substrate; 200. first mounting surface; 201. first raised portion; 21. weight reduction groove; 22. first insulator; 23. first buffer body; 24. through hole; 3. second protective block; 30. second substrate; 300. second mounting surface; 301. second raised portion; 31. second insulator; 32. second buffer body; 4. connecting block; 40. connecting body; 400. connecting portion; 401. connecting groove; 41. connecting hole. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of the present utility model, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0032] In the description of the present invention, it should be understood that the terms "height", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it should be understood that the terms "first" and "second" are used in the present invention for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0034] Example

[0035] like Figure 1-7 As shown, a packaging structure of a battery stack module preferably implemented in the present invention is applied to a battery stack module composed of a plurality of stacked battery cells 1, and the plurality of battery stack cells 1 are stacked in sequence along the up and down direction.

[0036] The packaging structure includes a first protection block 2, a second protection block 3, and a connection block 4, wherein:

[0037] The first protection block 2 is arranged at the outer end of the outermost stack cell 1, and there are multiple first protection blocks 2 arranged on the same end side, and the multiple first protection blocks 2 are arranged in an intermittent arrangement; the first protection block 2 includes a first substrate 20 for support, and the first substrate 20 is provided with a weight reduction groove 21 for reducing the weight of the first protection block 2. The first substrate 20 is provided with a first insulator 22 and a first buffer 23 arranged in sequence on the end side facing the stack cell 1, and the first buffer 23 is attached to the stack cell 1. Along the length direction of the first substrate 20, both ends of the first substrate 20 are provided with through holes 24 for connecting with the connection block 4.

[0038] It should be noted that when multiple stack cells 1 are stacked in sequence along the up-down direction, the outermost stack cell 1 is the topmost stack cell 1, and the lowermost stack cell 1. At this time, the outer end of the outermost stack cell 1 is the upper end side of the topmost stack cell 1, and the lower end side of the lowermost stack cell 1.

[0039] It should be noted that the first protection block 2 can be connected to the connection block 4, or to a certain structural part provided on the outer surface of the stack cell 1, and both connection methods can realize the connection and coordination between the first protection block 2 and the stack cell 1. Based on the layout of the external structural parts of each stack module and the structural design, the first protection block 2 can be selectively connected to the connection block 4 or the structural part of the stack cell 1, making the assembly of the packaging structure more convenient.

[0040] In order to ensure the supporting effect of the first substrate 20, the first substrate 20 can be made of high-strength material to meet the pre-pressure requirements of the battery stack monomer 1. The shape and size of the first substrate 20 can be designed to match the specifications of the battery stack module. The first substrate 20 can be provided with a weight-reducing groove 21 for reducing the weight of the first protective block 2, or a reinforcing rib for strengthening the structural strength of the first substrate 20, thereby improving the applicability of the first substrate 20.

[0041] The first insulator 22 can be made of an insulating material such as PPS, so that the first insulator 22 can isolate the first substrate 20 from the battery stack cell 1. Figure 3 , 5 As shown, in this embodiment, the first insulator 22 is wrapped around the outer peripheral side of the first substrate 20, so that an insulating layer is formed on the end side of the first substrate 20 facing the battery stack cell 1, so that the first substrate 20 is completely isolated from the battery stack cell 1 by the first insulator 22, thereby ensuring the insulation effect of the first protective block 2.

[0042] In this embodiment, the first substrate 20 is formed with a first mounting surface 200 and first protrusions 201 arranged on both sides of the first mounting surface 200 on the end side facing the first buffer body 23. The first protrusions 201 extend toward the location of the first buffer body 23. In this way, when the first insulator 22 is wrapped around the outer peripheral side of the first substrate 20, a structure matching the first mounting surface 200 and the first protrusions 201 is also formed on the first insulator 22. The first buffer body 23 is connected to the first mounting surface 200 through the first insulator 22. When the first protective block 2 is tightened, the first substrate 20 will be squeezed on the first buffer body 23, and a force toward the stack cell 1 is applied to the first buffer body 23, so that the first buffer body 23 is squeezed and deformed. Based on the design of the first protrusion 201 on the first substrate 20 and the matching design of the first insulator 22, the first buffer body 23 will be confined between the two first protrusions 201, thereby ensuring that the first buffer body 23 can provide sufficient buffering effect when the first protective block 2 is tightened.

[0043] In this embodiment, the second protection block 3 is arranged between two adjacent battery stack cells 1, and the number of second protection blocks 3 arranged on the same end side is multiple, and multiple second protection blocks 3 are arranged at intervals. The second protection block 3 includes a second base 30 for support, and the second base 30 is provided with a second insulator 31 and a second buffer 32 arranged in sequence on the end side facing the battery stack cell 1, and the second buffer 32 is attached to the battery stack cell 1. Along the length direction of the second base 30, both ends of the second base 30 are provided with through holes 24 for connecting with the connection block 4.

[0044] The second insulator 31 can also be made of insulating materials such as PPS, so that the second insulator 31 can isolate the second substrate 30 from the battery stack monomer 1. Figure 6 As shown, in this embodiment, the second insulator 31 is wrapped around the outer peripheral side of the second substrate 30, so that an insulating layer is formed on the end side of the second substrate 30 facing the battery stack cell 1, so that the second substrate 30 is completely isolated from the battery stack cell 1 by the second insulator 31, ensuring the insulation effect of the second protective block 3.

[0045] In this embodiment, the second substrate 30 is formed with a second mounting surface 300 and second protrusions 301 arranged on both sides of the second mounting surface 300 on the end side facing the second buffer body 32. The second protrusions 301 extend toward the position of the second buffer body 32. In this way, when the second insulator 31 is wrapped around the outer peripheral side of the first substrate 20, a structure matching the second mounting surface 300 and the second protrusions 301 is also formed on the second insulator 31. The second buffer body 32 is connected to the second mounting surface 300 through the second insulator 31. When the stack module is assembled, the second protective block 3 between two adjacent stack cells 1 will be squeezed by the stack cell 1, and the stack cell 1 applies a force toward the second substrate 30 to the second buffer body 32, so that the second buffer body 32 is squeezed and deformed. Based on the design of the second protrusion 301 on the second substrate 30 and the matching design of the second insulator 31, the second buffer body 32 will be restricted between the two second protrusions 301, thereby ensuring that the second buffer body 32 can provide sufficient buffering effect.

[0046] In this embodiment, the connection block 4 includes a connection body 40, on which a connection portion 400 for connecting adjacent connection blocks 4 is provided, the connection portion 400 is provided at the upper end side and the lower end side of the connection body 40, and a connection groove 401 for placing the first protection block 2 or the second protection block 3 is provided in the connection portion 400. The connection block 4 is arranged at the end of each stack cell 1 along the length direction, and the connection blocks 4 respectively arranged on two adjacent stack cells 1 are connected to each other through the connection holes 41 provided in the connection portion 400.

[0047] like Figure 1 , 2 As shown, when assembling the battery stack module, the second protection block 3 is arranged between two adjacent battery stack cells 1, the second buffer body 32 is connected to the two battery stack cells 1 respectively, and the first protection block 2 is arranged on the upper end side of the top battery stack cell 1 and the lower end side of the bottom battery stack cell 1, and the first buffer body 23 is respectively attached to the top battery stack cell 1 and the bottom battery stack cell 1. The connection block 4 is installed on the end of each battery stack cell 1 along the length direction, and the connection blocks 4 respectively arranged on two adjacent battery stack cells 1 are connected to each other through the connection holes 41 set in the connection part 400, so that the ends of the two adjacent battery stack cells 1 along the length direction are assembled together.

[0048] The second protection block 3 arranged between two adjacent battery stack cells 1 is embedded in the connection groove 401, and is connected and fixed to the corresponding connection block 4 through the through hole 24 set on the second substrate 30, and the first protection block 2 connected to the connection block 4 is also embedded in the connection groove 401, and is connected and fixed to the corresponding connection block 4 through the through hole 24 set on the first substrate 20. As the fasteners (such as bolts, etc.) located in the through hole 24 or the connection hole 41 lock the connection block 4, the first protection block 2, and the second protection block 3, the first protection block 2 is pressed against the surface of the battery stack cell 1, and the second protection block 3 is pressed by the two adjacent battery stack cells 1. The first buffer body 23 and the second buffer body 32 are subjected to the extrusion force to provide buffer protection for the corresponding battery stack cell 1, and the first substrate 20 and the second substrate 30 provide support for the corresponding battery stack cell 1, so that the stacked battery stack module maintains a compact structure and does not collapse.

[0049] In summary, the embodiment of the utility model provides a packaging structure of a battery stack module, which is applied to the battery stack module. By applying a first protective block 2 and a second protective block 3 with supporting, insulating and protective effects, the packaging structure only needs to assemble a single component to achieve the supporting, insulating and protective effects, which can reduce the number of components for assembling the battery stack module and improve the assembly efficiency of the battery stack module. Moreover, the packaging structure is provided with a second protective block 3 between two adjacent battery stack cells 1, and support is provided for the two adjacent battery stack cells 1 through the second base body 30, and buffer protection is provided for the two adjacent battery stack cells 1 through the second buffer body 32, which meets the needs of support and buffer protection between the two adjacent battery stack cells 1, separates the two adjacent battery stack cells 1, and the battery stack cells 1 are squeezed on the second buffer layer, which effectively prevents the battery stack cells 1 inside the battery stack module from collapsing.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A packaging structure of a battery stack module, the battery stack module comprising a plurality of stacked battery cells, characterized in that: comprising a first protection block, a second protection block, and a connecting block, The first protection block is arranged at the outer end of the outermost stack cell, and the first protection block includes a first base for support, the first base is provided with a first insulator on the end side facing the stack cell, and the first insulator is provided with a first buffer for fitting the stack cell on the end side facing the stack cell; The second protection block is arranged between two adjacent battery stack cells, and includes a second base body for support, and the second base body is provided with a second insulator on the end side facing the battery stack cell, and the second insulator is provided with a second buffer body for fitting the battery stack cell on the end side facing the battery stack cell; The connecting block is arranged at the end of each battery stack cell along the length direction, and the connecting blocks respectively arranged on two adjacent battery stack cells are connected to each other, and the first protective block is connected to the connecting block and / or the battery stack cell, and the second protective block is connected to the connecting block.

2. The packaging structure according to claim 1, characterized in that: There are multiple first protection blocks arranged on the same end side, and the multiple first protection blocks are arranged at intervals.

3. The packaging structure according to claim 1, characterized in that: The first insulator wraps the outer peripheral side of the first base.

4. The packaging structure according to claim 1, characterized in that: A first mounting surface and first protrusions arranged on both sides of the first mounting surface are formed on the end side of the first base body facing the first buffer body. The first protrusions extend toward the location of the first buffer body. The first buffer body is connected to the first mounting surface.

5. The packaging structure according to claim 1, characterized in that: The first base is provided with a weight-reducing groove for reducing the weight of the first protection block.

6. The packaging structure according to claim 1, characterized in that: There are a plurality of second protection blocks arranged on the same end side, and the plurality of second protection blocks are arranged in an alternating pattern.

7. The packaging structure according to claim 1, characterized in that: A second mounting surface and second protrusions arranged on both sides of the second mounting surface are formed on the end side of the second base body facing the second buffer body. The second protrusions extend toward the corresponding position of the second buffer body, and the second buffer body is connected to the second mounting surface.

8. The packaging structure according to claim 1, characterized in that: The first substrate and the second substrate are both provided with through holes for connecting with the connecting block.

9. The packaging structure according to claim 1, characterized in that: The connection block comprises a connection body, a connection portion for connecting adjacent connection blocks is arranged on the connection body, and a connection groove for placing the first protection block or the second protection block is arranged in the connection portion.

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