CN114497672A - Manifold device of fuel cell stack - Google Patents

Manifold device of fuel cell stack Download PDF

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Publication number
CN114497672A
CN114497672A CN202210353272.4A CN202210353272A CN114497672A CN 114497672 A CN114497672 A CN 114497672A CN 202210353272 A CN202210353272 A CN 202210353272A CN 114497672 A CN114497672 A CN 114497672A
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China
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channel
cooling liquid
input
output
hydrogen
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CN202210353272.4A
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CN114497672B (en
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郑军
王斌
刘锋
钱伟
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Foshan Cleanest Energy Technology Co Ltd
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Foshan Cleanest Energy Technology Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
    • H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

The invention discloses a manifold device of a fuel cell stack, which comprises an upper cover plate, a pack top plate and an end plate, wherein the interiors of the upper cover plate, the pack top plate and the end plate are hollowed to obtain a series of channels required by a manifold, and the manifold device comprises: the gas-liquid input/output hole, the gas-liquid input/output channel, the gas-liquid input/output shunting hole, the gas-liquid input/output distribution channel, and the gas-liquid input/output port. The manifold device is arranged in the upper cover plate, the pack top plate and the end plate of the fuel cell stack, so that the manifold device is highly integrated, the cost of the fuel cell stack is greatly reduced, and the spatial layout of the fuel cell stack is easy.

Description

Manifold device of fuel cell stack
Technical Field
The invention relates to the technical field of fuel cells, in particular to a manifold device of a fuel cell stack.
Background
The fuel cell is a device for directly converting chemical energy stored in fuel and oxidant into electric energy, has great advantages compared with traditional energy sources such as coal, petroleum, natural gas and the like, is an effective means for solving environmental pollution and energy crisis, the fuel of the fuel cell is generally hydrogen, methanol, methane and the like, and air or oxygen and the like are used as the oxidant.
In the field of fuel cell technology, as more fuel cells occupy more space, and in order to make better use of space, a large fuel cell stack needs to be divided into several small fuel cells, and the fuel cells are usually combined in series or in parallel. The design of the manifolds is crucial for series or parallel stacks.
In the prior art, the manifolds are all independent integrated part modules, the manifolds are integrated between the fuel cell stack and the box body, the manifolds not only occupy the large volume inside the box body, but also the pipelines of most of the manifolds can be exposed outside the box body, the volume of the whole box body is increased, the layout of the fuel cell stack in the inner space of the whole fuel cell engine is influenced, and the independent manifold device can increase extra cost.
Disclosure of Invention
In order to solve one of the above technical problems, the present invention provides a manifold device for a fuel cell stack, which is highly integrated by placing the manifold device in an upper cover plate, a pack top plate and an end plate of the fuel cell stack, thereby greatly reducing the cost of the fuel cell stack and facilitating the spatial layout of the fuel cell stack.
In order to solve the technical problems, the invention provides the following technical scheme: a manifold device of a fuel cell stack comprises an upper cover plate, a pack top plate and an end plate which are sequentially matched and connected;
the upper cover plate comprises an air input hole, a cooling liquid output hole, a hydrogen output hole, an air output hole, a cooling liquid input hole and a hydrogen input hole; the air input hole, the cooling liquid output hole, the hydrogen output hole, the air output hole, the cooling liquid input hole and the hydrogen input hole penetrate through the upper cover plate;
the upper cover plate also comprises an air input channel upper channel, a cooling liquid output channel upper channel, a hydrogen output channel upper channel, an air output channel upper channel, a cooling liquid input channel upper channel and a hydrogen input channel upper channel; the hydrogen output channel is arranged on the hydrogen output channel, the air output hole is arranged at the upper end of the upper channel of the air output channel, the cooling liquid input hole is arranged in the middle of the upper channel of the cooling liquid input channel, and the hydrogen input hole is arranged in the middle of the upper channel of the hydrogen input channel;
the pack top plate comprises an air input channel lower channel, a cooling liquid output channel lower channel, a hydrogen output channel lower channel, an air output channel lower channel, a cooling liquid input channel lower channel, a hydrogen input channel lower channel, an air input first diversion hole, an air input second diversion hole, a cooling liquid output first diversion hole, a cooling liquid output second diversion hole, a hydrogen output first diversion hole, a hydrogen output second diversion hole, an air output first diversion hole, an air output second diversion hole, a cooling liquid input first diversion hole, a cooling liquid input second diversion hole, a hydrogen input first diversion hole and a hydrogen input second diversion hole;
the air input first diversion hole, the air input second diversion hole, the cooling liquid output first diversion hole, the cooling liquid output second diversion hole, the hydrogen output first diversion hole, the hydrogen output second diversion hole, the air output first diversion hole, the air output second diversion hole, the cooling liquid input first diversion hole, the cooling liquid input second diversion hole, the hydrogen input first diversion hole and the hydrogen input second diversion hole penetrate through the pack top plate;
the cooling liquid output first diversion hole and the cooling liquid output second diversion hole are respectively positioned at the upper end and the lower end of the lower channel of the cooling liquid output channel; the hydrogen output first flow dividing hole and the hydrogen output second flow dividing hole are respectively positioned at the upper end and the lower end of the lower channel of the hydrogen output channel; the air output first diversion hole and the air output second diversion hole are respectively positioned at the lower end and the upper end of the lower channel of the air output channel; the cooling liquid input first diversion hole and the cooling liquid input second diversion hole are respectively positioned at the lower end and the upper end of the lower channel of the cooling liquid input channel; the hydrogen input first flow dividing hole and the hydrogen input second flow dividing hole are respectively positioned at the lower end and the upper end of the lower channel of the hydrogen input channel;
the upper channel of the air input channel and the lower channel of the air input channel are combined into an air input channel; the upper channel of the cooling liquid output channel and the lower channel of the cooling liquid output channel are combined into a cooling liquid output channel; the upper channel of the hydrogen output channel and the lower channel of the hydrogen output channel are combined into an air input channel; the upper channel of the air output channel and the lower channel of the air output channel are combined into an air input channel; the upper channel of the cooling liquid input channel and the lower channel of the cooling liquid input channel are combined into an air input channel; the upper channel of the hydrogen input channel and the lower channel of the hydrogen input channel are combined into an air input channel;
the pack top plate also comprises a first cooling liquid output distribution channel upper channel, a second cooling liquid output distribution channel upper channel, a first cooling liquid input distribution channel upper channel and a second cooling liquid input distribution channel upper channel;
the cooling liquid output first diversion hole is positioned in the upper channel of the first cooling liquid output distribution channel and at the right end of the upper channel of the first cooling liquid output distribution channel; the cooling liquid output second diversion hole is positioned in the upper channel of the second cooling liquid output distribution channel and at the right end of the upper channel of the second cooling liquid output distribution channel; the cooling liquid input first diversion hole is positioned in the upper channel of the first cooling liquid input distribution channel and at the left end of the upper channel of the first cooling liquid input distribution channel; the cooling liquid input second diversion hole is positioned in the upper channel of the second cooling liquid input distribution channel and at the left end of the upper channel of the second cooling liquid input distribution channel;
the end plate comprises a first air inlet, a first cooling liquid outlet, a first hydrogen outlet, a second air inlet, a second cooling liquid outlet, a second hydrogen outlet, a first air outlet, a first cooling liquid inlet, a first hydrogen inlet, a second air outlet, a second cooling liquid inlet, a second hydrogen inlet, a first hydrogen output distribution channel, a first cooling liquid output distribution channel lower channel, a second hydrogen output distribution channel, a second cooling liquid output distribution channel lower channel, a first hydrogen input distribution channel, a first cooling liquid input distribution channel lower channel, a second hydrogen input distribution channel and a second cooling liquid input distribution channel lower channel;
the first air inlet, the first cooling liquid outlet, the first hydrogen outlet, the second air inlet, the second cooling liquid outlet, the second hydrogen outlet, the first air outlet, the first cooling liquid inlet, the first hydrogen inlet, the second air outlet, the second cooling liquid inlet and the second hydrogen inlet penetrate through the end plate;
the first cooling liquid output port is positioned at the left end of the lower channel of the first cooling liquid output distribution channel; the first hydrogen output port is positioned at the left end of the first hydrogen output distribution channel; the second cooling liquid output port is positioned at the left end of the lower channel of the second cooling liquid output distribution channel; the second hydrogen output port is positioned at the left end of the second hydrogen output distribution channel; the first cooling liquid input port is positioned at the right end of the lower channel of the first cooling liquid input distribution channel; the first hydrogen input port is positioned at the right end of the first hydrogen input distribution channel; the second cooling liquid input port is positioned at the right end of the lower channel of the second cooling liquid input distribution channel; the second hydrogen input port is positioned at the right end of the second hydrogen input distribution channel;
the first cooling liquid output distribution channel upper channel and the first cooling liquid output distribution channel lower channel are combined into a first cooling liquid output distribution channel; the upper channel of the second cooling liquid output distribution channel and the lower channel of the second cooling liquid output distribution channel are combined into a second cooling liquid output distribution channel; the first cooling liquid input distribution channel upper channel and the first cooling liquid input distribution channel lower channel are combined into a first cooling liquid input distribution channel; the upper channel of the second cooling liquid input distribution channel and the lower channel of the second cooling liquid input distribution channel are combined into a second cooling liquid input distribution channel;
the sizes and the shapes of the upper channel openings of the first cooling liquid output distribution channels and the lower channel openings of the first cooling liquid output distribution channels are consistent, the sizes and the shapes of the upper channel openings of the second cooling liquid output distribution channels and the lower channel openings of the second cooling liquid output distribution channels are consistent, the sizes and the shapes of the upper channel openings of the first cooling liquid input distribution channels and the lower channel openings of the first cooling liquid input distribution channels are consistent, and the sizes and the shapes of the upper channel openings of the second cooling liquid input distribution channels and the lower channel openings of the second cooling liquid input distribution channels are consistent; when the pack top plate and the end plate are connected in a matched mode, the upper channel of the first cooling liquid output distribution channel and the lower channel of the first cooling liquid output distribution channel are correspondingly connected in a matched mode, the upper channel of the second cooling liquid output distribution channel and the lower channel of the second cooling liquid output distribution channel are correspondingly connected in a matched mode, the upper channel of the first cooling liquid input distribution channel and the lower channel of the first cooling liquid input distribution channel are correspondingly connected in a matched mode, and the upper channel of the second cooling liquid input distribution channel and the lower channel of the second cooling liquid input distribution channel are correspondingly connected in a matched mode;
when pack roof and end plate cooperation are connected, the first reposition of redundant personnel of hydrogen output is located inside first hydrogen output distribution passageway, the second reposition of redundant personnel of hydrogen output is located inside second hydrogen output distribution passageway, the first reposition of redundant personnel of hydrogen input is located inside first hydrogen input distribution passageway, the second reposition of redundant personnel of hydrogen input is located inside second hydrogen input distribution passageway.
Furthermore, the manifold device of the fuel cell stack further comprises an air input joint, a cooling liquid output joint, a hydrogen output joint, an air output joint, a cooling liquid input joint and a hydrogen input joint; the air input connector, the cooling liquid output connector, the hydrogen output connector, the air output connector, the cooling liquid input connector and the hydrogen input connector are respectively matched and fixedly connected with the air input hole, the cooling liquid output hole, the hydrogen output hole, the air output hole, the cooling liquid input hole and the hydrogen input hole.
Furthermore, the air input hole comprises an air input hole sealing groove which is arranged at the outer edge of the air input hole, a sealing gasket is correspondingly arranged on the air input hole sealing groove, and the sealing gasket is used for sealing between the air input hole and the air input joint;
the cooling liquid output hole comprises a cooling liquid output hole sealing groove, the cooling liquid output hole sealing groove is arranged at the outer edge of the cooling liquid output hole, a sealing gasket is correspondingly arranged on the cooling liquid output hole sealing groove, and the sealing gasket is used for sealing between the cooling liquid output hole and the cooling liquid output connector;
the hydrogen output hole comprises a hydrogen output hole sealing groove which is arranged at the outer edge of the hydrogen output hole, a sealing gasket is correspondingly arranged on the hydrogen output hole sealing groove, and the sealing gasket is used for sealing between the hydrogen output hole and the hydrogen output connector;
the air output hole comprises an air output hole sealing groove, the air output hole sealing groove is arranged at the outer edge of the air output hole, a sealing gasket is correspondingly arranged on the air output hole sealing groove, and the sealing gasket is used for sealing between the air output hole and the air output connector;
the cooling liquid input hole comprises a cooling liquid input hole sealing groove, the cooling liquid input hole sealing groove is arranged at the outer edge of the cooling liquid input hole, a sealing gasket is correspondingly arranged on the cooling liquid input hole sealing groove, and the sealing gasket is used for sealing between the cooling liquid input hole and the cooling liquid input joint;
the hydrogen input hole comprises a hydrogen input hole sealing groove, the hydrogen input hole sealing groove is arranged on the outer edge of the hydrogen input hole, a sealing gasket is correspondingly arranged on the hydrogen input hole sealing groove, and the sealing gasket is used for sealing between the hydrogen input hole and the hydrogen input connector.
Furthermore, the air input hole, the cooling liquid output hole, the hydrogen output hole, the air output hole, the cooling liquid input hole and the hydrogen input hole are all cylindrical through holes;
the air input hole sealing groove, the cooling liquid output hole sealing groove, the hydrogen output hole sealing groove, the air output hole sealing groove, the cooling liquid input hole sealing groove and the hydrogen input hole sealing groove are all circular rings.
Furthermore, the upper channel and the lower channel of the air input channel are both semi-cylindrical, and the air input channel formed by combining the upper channel and the lower channel of the air input channel is cylindrical;
the upper channel and the lower channel of the cooling liquid output channel are both semi-cylindrical, and the air input channel formed by combining the upper channel and the lower channel of the cooling liquid output channel is cylindrical;
the upper channel and the lower channel of the hydrogen output channel are both semi-cylindrical, and the air input channel formed by combining the upper channel and the lower channel of the hydrogen output channel is cylindrical;
the upper channel and the lower channel of the air output channel are both semi-cylindrical, and the air input channel formed by combining the upper channel and the lower channel of the air output channel is cylindrical;
the upper channel of the cooling liquid input channel and the lower channel of the cooling liquid input channel are both semi-cylindrical, and the air input channel formed by combining the upper channel of the cooling liquid input channel and the lower channel of the cooling liquid input channel is cylindrical;
the upper channel of the hydrogen input channel and the lower channel of the hydrogen input channel are both semi-cylindrical, and the air input channel formed by combining the upper channel of the hydrogen input channel and the lower channel of the hydrogen input channel is cylindrical.
Furthermore, the pack top plate also comprises an air input channel sealing groove, a cooling liquid output channel sealing groove, a hydrogen output channel sealing groove, an air output channel sealing groove, a cooling liquid input channel sealing groove and a hydrogen input channel sealing groove;
the air input channel sealing groove is arranged at the outer edge of the lower channel of the air input channel, and the air input channel sealing groove is correspondingly provided with a sealing gasket;
the cooling liquid output channel sealing groove is arranged at the outer edge of the lower channel of the cooling liquid output channel, and a sealing gasket is correspondingly arranged on the cooling liquid output channel sealing groove;
the hydrogen output channel sealing groove is arranged at the outer edge of the lower channel of the hydrogen output channel, and a sealing gasket is correspondingly arranged on the hydrogen output channel sealing groove;
the air output channel sealing groove is arranged at the outer edge of the lower channel of the air output channel, and the air output channel sealing groove is correspondingly provided with a sealing gasket;
the cooling liquid input channel sealing groove is arranged at the outer edge of the lower channel of the cooling liquid input channel, and a sealing gasket is correspondingly arranged on the cooling liquid input channel sealing groove;
the hydrogen input channel sealing groove is arranged on the outer edge of the lower channel of the hydrogen input channel, and the hydrogen input channel sealing groove is correspondingly provided with a sealing gasket.
Further, the pack top plate further comprises a first sealing groove, a second sealing groove, a third sealing groove and a fourth sealing groove;
the first sealing groove is arranged at the outer edge of the first hydrogen output and distribution hole, the upper channel of the first cooling liquid output and distribution channel and the first air input and distribution hole, a sealing gasket is correspondingly arranged on the first sealing groove, and the sealing gasket is used for sealing between the first air input and distribution hole and the first air input port, sealing between the upper channel of the first cooling liquid output and distribution channel and the lower channel of the first cooling liquid output and distribution channel and sealing between the first hydrogen output and distribution channel and the lower end face of the pack top plate;
the second sealing groove is arranged at the outer edges of the hydrogen output second diversion hole, the upper channel of the second cooling liquid output distribution channel and the air input second diversion hole, a sealing gasket is correspondingly arranged on the second sealing groove, and the sealing gasket is used for sealing between the air input second diversion hole and the second air input port, sealing between the upper channel of the second cooling liquid output distribution channel and the lower channel of the second cooling liquid output distribution channel and sealing between the second hydrogen output distribution channel and the lower end face of the pack top plate;
the third sealing groove is arranged at the outer edges of the hydrogen input first diversion hole, the first cooling liquid input distribution channel upper channel and the air output first diversion hole, a sealing gasket is correspondingly arranged on the third sealing groove, and the sealing gasket is used for sealing between the air output first diversion hole and the first air output port, sealing between the first cooling liquid input distribution channel upper channel and the first cooling liquid input distribution channel lower channel and sealing between the first hydrogen input distribution channel and the pack top plate lower end face;
the fourth seal groove is arranged on the outer edges of the channel and the air output second flow dividing hole in the hydrogen input second flow dividing hole and the second cooling liquid input distribution channel, a seal gasket is correspondingly arranged on the fourth seal groove, and the seal gasket is used for sealing between the air output second flow dividing hole and the second air output port, sealing between the channel on the second cooling liquid input distribution channel and the channel below the second cooling liquid input distribution channel and sealing between the second input port hydrogen input distribution channel and the lower end face of the pack top plate.
Furthermore, the depth of the upper channel of the air input channel, the upper channel of the cooling liquid output channel, the upper channel of the hydrogen output channel, the upper channel of the air output channel, the upper channel of the cooling liquid input channel and the upper channel of the hydrogen input channel is smaller than the thickness of the upper cover plate.
Furthermore, the depths of the lower channel of the air input channel, the lower channel of the cooling liquid output channel, the lower channel of the hydrogen output channel, the lower channel of the air output channel, the lower channel of the cooling liquid input channel and the lower channel of the hydrogen input channel are all less than half of the thickness of the pack top plate;
the depths of the upper channel of the first cooling liquid output distribution channel, the upper channel of the second cooling liquid output distribution channel, the upper channel of the first cooling liquid input distribution channel and the upper channel of the second cooling liquid input distribution channel are all less than half of the thickness of the pack top plate.
Further, the first hydrogen output distribution channel, the first cooling liquid output distribution channel lower channel, the second hydrogen output distribution channel, the second cooling liquid output distribution channel lower channel, the first hydrogen input distribution channel, the first cooling liquid input distribution channel lower channel, the second hydrogen input distribution channel and the second cooling liquid input distribution channel lower channel are all smaller than the thickness of the end plate.
After the technical scheme is adopted, the invention at least has the following beneficial effects: the manifold device for the fuel cell stack is arranged in the upper cover plate 1, the pack top plate 2 and the end plate 3, so that the cost can be greatly saved, and the spatial arrangement of the fuel cell stack is greatly facilitated; the sealing gasket of each seal groove and cooperation seal groove that sets up has guaranteed the sealed effect between upper cover plate 1, pack roof 2 and end plate 3 two liang.
Drawings
Fig. 1 is a schematic perspective view of a manifold device according to the present invention.
Fig. 2 is an exploded top view of the manifold assembly of the present invention.
Fig. 3 is an exploded bottom view of the manifold assembly of the present invention.
Fig. 4 is a schematic structural diagram of the upper end surface of the upper cover plate according to the present invention.
Fig. 5 is a schematic view of the lower end surface structure of the upper cover plate according to the present invention.
FIG. 6 is a schematic view of the upper end face structure of the pack top plate according to the present invention.
FIG. 7 is a schematic view of the lower end surface structure of the pack top plate according to the present invention.
Fig. 8 is a schematic view of the upper end face structure of the end plate of the present invention.
Fig. 9 is a schematic view of the lower end surface structure of the end plate of the present invention.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict, and the present application is further described in detail with reference to the drawings and specific embodiments.
Examples
In the description of the upper, lower, left, right, front, rear and the like aspects related to the present invention, the reference is defined with respect to the drawings, and when the placement position of the manifold device of the fuel cell stack is changed, the corresponding aspect description should be changed accordingly, and the present invention is not described herein again.
As shown in fig. 1-9, the manifold device for a fuel cell stack of the present invention is applied to a fuel cell stack, and mainly comprises an upper cover plate 1, a pack top plate 2 and an end plate 3, wherein a manifold required by the fuel cell stack is formed by performing a series of hollowing operations on the upper cover plate 1, the pack top plate 2 and the end plate 3 and by matching and connecting the upper cover plate 1, the pack top plate 2 and the end plate 3; the pack top plate is one panel of a pack (box) of the fuel cell stack and is positioned on the top surface of the pack (box); the upper cover plate 1 is a newly designed plate and is used for matching with a pack top plate; the end plate 3 is an end plate used by the existing fuel cell stack, the upper end surface of the end plate 3 is used for being matched and connected with a pack top plate, the lower end surface of the end plate 3 is used for being matched and connected with an insulating plate of the fuel cell stack, and a current collecting plate of the fuel cell stack is connected below the insulating plate; the manifold assembly of a fuel cell stack according to the present invention does not involve the insulating plate and the current collecting plate used in the conventional art in the design of the manifold assembly, and thus the detailed description of the insulating plate and the current collecting plate can be omitted.
According to the invention, a manifold device is formed by performing a series of hollow operations on the upper cover plate 1, the pack top plate 2 and the end plate 3, so that a manifold device does not need to be additionally and independently arranged outside the fuel cell stack, the effect of reducing the cost is achieved, the space position occupied by an external manifold is reduced, and the spatial layout of the fuel cell stack is facilitated.
As shown in fig. 4 and 5, the upper cover plate 1 includes an upper end surface and a lower end surface; as shown in fig. 4, on the upper end surface of the upper cover plate 1, the upper cover plate 1 includes an air inlet hole 11, a coolant outlet hole 12, a hydrogen outlet hole 13, an air outlet hole 14, a coolant inlet hole 15, and a hydrogen inlet hole 16; the air input hole 11, the cooling liquid output hole 12, the hydrogen output hole 13, the air output hole 14, the cooling liquid input hole 15 and the hydrogen input hole 16 vertically penetrate through the upper cover plate 1. In fig. 4, the air input hole 11, the coolant output hole 12, and the hydrogen output hole 13 are located on the left side of the upper cover plate 1, and the air output hole 14, the coolant input hole 15, and the hydrogen input hole 16 are located on the right side of the upper cover plate 1.
As shown in fig. 1 to 3, the manifold device further includes an air input joint 41, a coolant output joint 42, a hydrogen output joint 43, an air output joint 51, a coolant input joint 52, and a hydrogen input joint 53; the air input joint 41, the cooling liquid output joint 42, the hydrogen output joint 43, the air output joint 51, the cooling liquid input joint 52 and the hydrogen input joint 53 are respectively matched and fixedly connected with the air input hole 11, the cooling liquid output hole 12, the hydrogen output hole 13, the air output hole 14, the cooling liquid input hole 15 and the hydrogen input hole 16.
As shown in fig. 4, on the upper end surface of the upper cover plate 1, the air inlet hole 11 includes an air inlet hole sealing groove 111, the air inlet hole sealing groove 111 is disposed at the outer edge of the air inlet hole 11, and a gasket is disposed in the air inlet hole sealing groove 111, and the gasket is used for sealing between the air inlet hole 11 and the air inlet connector 41; the air input joint 41 is fixedly connected with the upper end surface of the upper cover plate 1 through screws. Preferably, the air input hole 11 is a cylindrical through hole, and the air input hole sealing groove 111 is a circular ring type, and the diameter of the air input hole sealing groove 111 is larger than that of the air input hole 11; the air input joint 41 includes two parts, is upper end pipe and the square mounting of lower extreme respectively, and upper end pipe and the fixed an organic whole of the square mounting of lower extreme, upper end pipe diameter equal to 11 diameters of air input hole, and the square mounting width of lower extreme is greater than the 111 diameters of air input hole seal groove, the square mounting of lower extreme pass through the screw with the up end fixed connection of upper cover plate 1, the position that sets up of screw is located four edges that are close to the square mounting of lower extreme, and the screw is located the outer edge of air input hole seal groove 111 when the up end fixed connection of screw and upper cover plate 1.
On the upper end surface of the upper cover plate 1, the coolant output hole 12 comprises a coolant output hole sealing groove 121, the coolant output hole sealing groove 121 is arranged at the outer edge of the coolant output hole 12, a sealing gasket is correspondingly arranged on the coolant output hole sealing groove 121, and the sealing gasket is used for sealing between the coolant output hole 12 and the coolant output connector 42; the coolant output joint 42 is fixedly connected with the upper end surface of the upper cover plate 1 through screws. Preferably, the cooling liquid output hole 12 is a cylindrical through hole, the cooling liquid output hole sealing groove 121 is a circular ring, and the diameter of the cooling liquid output hole sealing groove 121 is larger than that of the cooling liquid output hole 12; the coolant liquid output joint 42 also includes two parts, be upper end pipe and the square mounting of lower extreme respectively, and upper end pipe and the fixed an organic whole of the square mounting of lower extreme, upper end pipe diameter equals coolant liquid delivery outlet 12 diameters, and the square mounting width of lower extreme is greater than coolant liquid delivery outlet seal groove 121 diameter, the square mounting of lower extreme pass through the screw with the up end fixed connection of upper cover plate 1, the position that sets up of screw is located four edges that are close to the square mounting of lower extreme, and the screw is located coolant liquid delivery outlet seal groove 121 outer edge when the screw is connected with the up end fixed connection of upper cover plate 1.
On the upper end surface of the upper cover plate 1, the hydrogen output hole 13 comprises a hydrogen output hole sealing groove 131, the hydrogen output hole sealing groove 131 is arranged at the outer edge of the hydrogen output hole 13, and a sealing gasket is correspondingly arranged on the hydrogen output hole sealing groove 131 and used for sealing between the hydrogen output hole 13 and the hydrogen output connector 43; the hydrogen output connector 43 is fixedly connected with the upper end surface of the upper cover plate 1 through screws. Preferably, the hydrogen output hole 13 is a cylindrical through hole, the hydrogen output hole sealing groove 131 is circular, and the diameter of the hydrogen output hole sealing groove 131 is larger than that of the hydrogen output hole 13; the hydrogen output connector 43 comprises two parts, namely an upper end circular tube and a lower end square fixing part, the upper end circular tube and the lower end square fixing part are fixed into a whole, the diameter of the upper end circular tube is equal to the diameter of the hydrogen output hole 13, the width of the lower end square fixing part is larger than the diameter of the hydrogen output hole sealing groove 131, the lower end square fixing part passes through a screw and is fixedly connected with the upper end face of the upper cover plate 1, the setting positions of the screw are located at four corners close to the lower end square fixing part, and the screw is located at the outer edge of the hydrogen output hole sealing groove 131 when the screw is fixedly connected with the upper end face of the upper cover plate 1.
On the upper end surface of the upper cover plate 1, the air output hole 14 comprises an air output hole sealing groove 141, the air output hole sealing groove 141 is arranged at the outer edge of the air output hole 14, and a sealing gasket is correspondingly arranged on the air output hole sealing groove 141 and used for sealing between the air output hole 14 and the air output connector 51; the air output connector 51 is fixedly connected with the upper end surface of the upper cover plate 1 through screws. Preferably, the air output hole 14 is a cylindrical through hole, the air output hole sealing groove 141 is circular, and the diameter of the air output hole sealing groove 141 is larger than that of the air output hole 14; air output connects 51 includes two parts, is upper end pipe and the square mounting of lower extreme respectively, and upper end pipe and the square mounting of lower extreme are fixed as an organic whole, and upper end pipe diameter equals 14 diameters of air delivery outlet, and the square mounting width of lower extreme is greater than air delivery outlet seal groove 141 diameter, the square mounting of lower extreme pass through the screw with the up end fixed connection of upper cover plate 1 sets up the position and is located four edges that are close to the square mounting of lower extreme, and the screw lies in air delivery outlet seal groove 141 outer edge during screw and upper cover plate 1's up end fixed connection.
On the upper end surface of the upper cover plate 1, the coolant inlet hole 15 includes a coolant inlet hole sealing groove 151, the coolant inlet hole sealing groove 151 is disposed at the outer edge of the coolant inlet hole 15, and a sealing gasket is disposed in the coolant inlet hole sealing groove 151 and used for sealing between the coolant inlet hole 15 and the coolant inlet joint 52; the coolant input connector 52 is fixedly connected with the upper end surface of the upper cover plate 1 through screws. Preferably, the cooling fluid inlet hole 15 is a cylindrical through hole, the cooling fluid inlet hole sealing groove 151 is a circular ring, and the diameter of the cooling fluid inlet hole sealing groove 151 is larger than that of the cooling fluid inlet hole 15; the coolant liquid input joint 52 includes two parts, be upper end pipe and the square mounting of lower extreme respectively, and upper end pipe and the fixed an organic whole of the square mounting of lower extreme, upper end pipe diameter equals the 15 diameters of coolant liquid input hole, and the square mounting width of lower extreme is greater than coolant liquid input hole seal groove 151 diameter, the square mounting of lower extreme pass through the screw with the up end fixed connection of upper cover plate 1, the position of setting up of screw is located four edges that are close to the square mounting of lower extreme, and the screw is located coolant liquid input hole seal groove 151 outer edge during screw and the up end fixed connection of upper cover plate 1.
On the upper end surface of the upper cover plate 1, the hydrogen inlet hole 16 includes a hydrogen inlet hole sealing groove 161, the hydrogen inlet hole sealing groove 161 is disposed at the outer edge of the hydrogen inlet hole 16, and a sealing gasket is correspondingly disposed on the hydrogen inlet hole sealing groove 161 and used for sealing between the hydrogen inlet hole 16 and the hydrogen inlet joint 53; the hydrogen input joint 53 is fixedly connected with the upper end surface of the upper cover plate 1 through a screw. Preferably, the hydrogen inlet hole 16 is a cylindrical through hole, and the hydrogen inlet hole sealing groove 161 is a circular ring type, and the diameter of the hydrogen inlet hole sealing groove 161 is larger than that of the hydrogen inlet hole 16; the hydrogen input connector 53 comprises two parts, namely an upper end round pipe and a lower end square fixing part, the upper end round pipe and the lower end square fixing part are fixed into a whole, the diameter of the upper end round pipe is equal to the diameter of the hydrogen input hole 16, the width of the lower end square fixing part is larger than the diameter of the hydrogen input hole sealing groove 161, the lower end square fixing part passes through a screw and is fixedly connected with the upper end face of the upper cover plate 1, the setting positions of the screw are located at four corners close to the lower end square fixing part, and the screw is located at the outer edge of the hydrogen input hole sealing groove 161 when the screw is fixedly connected with the upper end face of the upper cover plate 1.
In order to clearly show the specific shapes and positions of the air inlet hole seal groove 111, the coolant outlet hole seal groove 121, the hydrogen outlet hole seal groove 131, the air outlet hole seal groove 141, the coolant inlet hole seal groove 151, and the hydrogen inlet hole seal groove 161 in fig. 4, hatching is used for illustration in fig. 4.
As shown in fig. 5, on the lower end surface of the upper cover plate 1, the upper cover plate 1 includes an air input channel upper channel 17, a coolant output channel upper channel 18, a hydrogen output channel upper channel 19, an air output channel upper channel 101, a coolant input channel upper channel 102, and a hydrogen input channel upper channel 103. The air input channel upper channel 17, the cooling liquid output channel upper channel 18, the hydrogen output channel upper channel 19, the air output channel upper channel 101, the cooling liquid input channel upper channel 102 and the hydrogen input channel upper channel 103 all belong to grooves on the lower end face of the upper cover plate 1, and the depths of the air input channel upper channel 17, the cooling liquid output channel upper channel 18, the hydrogen output channel upper channel 19, the air output channel upper channel 101, the cooling liquid input channel upper channel 102 and the hydrogen input channel upper channel 103 are smaller than the thickness of the upper cover plate 1.
In fig. 5, the air input channel upper channel 17, the coolant output channel upper channel 18, and the hydrogen output channel upper channel 19 are located on the left side of the upper cover plate 1, and the air output channel upper channel 101, the coolant input channel upper channel 102, and the hydrogen input channel upper channel 103 are located on the right side of the upper cover plate 1;
the air input hole 11 is positioned in the middle of the upper channel 17 of the air input channel, the air input hole 11 is perpendicular to the upper channel 17 of the air input channel, the diameter of the air input hole 11 is smaller than or equal to the width of the upper channel 17 of the air input channel, and preferably, the depth of the upper channel 17 of the air input channel is smaller than one half of the thickness of the upper cover plate 1;
the cooling liquid output hole 12 is positioned at the upper end of the upper channel 18 of the cooling liquid output channel, the cooling liquid output hole 12 is vertical to the upper channel 18 of the cooling liquid output channel, the diameter of the cooling liquid output hole 12 is smaller than or equal to the width of the upper channel 18 of the cooling liquid output channel, and preferably, the depth of the upper channel 18 of the cooling liquid output channel is smaller than one half of the thickness of the upper cover plate 1;
the hydrogen output hole 13 is positioned at the upper end of the upper channel 19 of the hydrogen output channel, the hydrogen output hole 13 is vertical to the upper channel 19 of the hydrogen output channel, the diameter of the hydrogen output hole 13 is less than or equal to the width of the upper channel 19 of the hydrogen output channel, and preferably, the depth of the upper channel 19 of the hydrogen output channel is less than one half of the thickness of the upper cover plate 1;
the air output hole 14 is positioned at the upper end of the upper channel 101 of the air output channel, the air output hole 14 is perpendicular to the upper channel 101 of the air output channel, the diameter of the air output hole 14 is smaller than or equal to that of the upper channel 101 of the air output channel, and preferably, the depth of the upper channel 101 of the air output channel is smaller than one half of the thickness of the upper cover plate 1;
the cooling liquid input hole 15 is positioned in the middle of the upper channel 102 of the cooling liquid input channel, the cooling liquid input hole 15 is perpendicular to the upper channel 102 of the cooling liquid input channel, the diameter of the cooling liquid input hole 15 is smaller than or equal to the width of the upper channel 102 of the cooling liquid input channel, and preferably, the depth of the upper channel 102 of the cooling liquid input channel is smaller than one half of the thickness of the upper cover plate 1;
the hydrogen input hole 16 is positioned in the middle of the upper hydrogen input channel 103, the hydrogen input hole 16 is perpendicular to the upper hydrogen input channel 103, the diameter of the hydrogen input hole 16 is smaller than or equal to that of the upper hydrogen input channel 103, and preferably, the depth of the upper hydrogen input channel 103 is smaller than one half of the thickness of the upper cover plate 1.
In fig. 5, the air inlet hole 11 is located in the middle of the upper channel 17 of the air inlet channel, the coolant inlet hole 15 is located in the middle of the upper channel 102 of the coolant inlet channel, and the hydrogen inlet hole 16 is located in the middle of the upper channel 103 of the hydrogen inlet channel, and the respective inlet holes are located in the middle of the inlet channels to help the uniform distribution of the supplied air, coolant and hydrogen.
As shown in fig. 6 and 7, the pack top plate 2 comprises an upper end surface and a lower end surface; as shown in fig. 6, on the upper end face of the pack top plate 2, the pack top plate 2 includes an air input channel lower passage 21, a coolant output channel lower passage 22, a hydrogen output channel lower passage 23, an air output channel lower passage 24, a coolant input channel lower passage 25, a hydrogen input channel lower passage 26, an air input first split hole 211, an air input second split hole 212, a coolant output first split hole 221, a coolant output second split hole 222, a hydrogen output first split hole 231, a hydrogen output second split hole 232, an air output first split hole 241, an air output second split hole 242, a coolant input first split hole 251, a coolant input second split hole 252, a hydrogen input first split hole 261, and a hydrogen input second split hole 262.
The lower channel 21 of the air input channel, the lower channel 22 of the cooling liquid output channel, the lower channel 23 of the hydrogen output channel, the lower channel 24 of the air output channel, the lower channel 25 of the cooling liquid input channel and the lower channel 26 of the hydrogen input channel all belong to grooves on the upper end surface of the pack top plate 2.
The air input first split hole 211, the air input second split hole 212, the coolant output first split hole 221, the coolant output second split hole 222, the hydrogen output first split hole 231, the hydrogen output second split hole 232, the air output first split hole 241, the air output second split hole 242, the coolant input first split hole 251, the coolant input second split hole 252, the hydrogen input first split hole 261, and the hydrogen input second split hole 262 all vertically penetrate the pack top plate 2.
In fig. 6, the air input channel lower channel 21, the cooling liquid output channel lower channel 22 and the hydrogen output channel lower channel 23 are positioned on the left side of the pack top plate 2; the air output channel lower channel 24, the cooling liquid input channel lower channel 25 and the hydrogen input channel lower channel 26 are positioned on the right side of the pack top plate 2;
the air input first flow dividing hole 211 and the air input second flow dividing hole 212 are respectively positioned at the upper end and the lower end of the air input channel lower channel 21, the air input first flow dividing hole 211 and the air input second flow dividing hole 212 are both positioned inside the air input channel lower channel 21, the air input first flow dividing hole 211 and the air input second flow dividing hole 212 are both perpendicular to the air input channel lower channel 21, and preferably, the depth of the air input channel lower channel 21 is less than one half of the thickness of the pack top plate 2;
the first coolant output tapping hole 221 and the second coolant output tapping hole 222 are respectively located at the upper end and the lower end of the lower coolant output channel 22, the first coolant output tapping hole 221 and the second coolant output tapping hole 222 are both located inside the lower coolant output channel 22, the first coolant output tapping hole 221 and the second coolant output tapping hole 222 are both perpendicular to the lower coolant output channel 22, and preferably, the depth of the lower coolant output channel 22 is less than one half of the thickness of the pack top plate 2;
the first hydrogen output flow dividing hole 231 and the second hydrogen output flow dividing hole 232 are respectively located at the upper end and the lower end of the lower hydrogen output channel 23, the first hydrogen output flow dividing hole 231 and the second hydrogen output flow dividing hole 232 are perpendicular to the lower hydrogen output channel 23, and preferably, the depth of the lower hydrogen output channel 23 is less than one half of the thickness of the pack top plate 2;
the air output first diversion hole 241 and the air output second diversion hole 242 are respectively positioned at the lower end and the upper end of the air output channel lower channel 24, the air output first diversion hole 241 and the air output second diversion hole 242 are both positioned inside the air output channel lower channel 24, the air output first diversion hole 241 and the air output second diversion hole 242 are both perpendicular to the air output channel lower channel 24, and preferably, the depth of the air output channel lower channel 24 is less than one half of the thickness of the pack top plate 2;
the cooling liquid input first diversion hole 251 and the cooling liquid input second diversion hole 252 are respectively positioned at the lower end and the upper end of the cooling liquid input channel lower channel 25, the cooling liquid input first diversion hole 251 and the cooling liquid input second diversion hole 252 are both positioned in the cooling liquid input channel lower channel 25, the cooling liquid input first diversion hole 251 and the cooling liquid input second diversion hole 252 are both perpendicular to the cooling liquid input channel lower channel 25, and preferably, the depth of the cooling liquid input channel lower channel 25 is less than one half of the thickness of the pack top plate 2;
the hydrogen inlet first and second flow dividing holes 261 and 262 are respectively located at the lower end and the upper end of the hydrogen inlet channel lower channel 26, and the hydrogen inlet first and second flow dividing holes 261 and 262 are perpendicular to the hydrogen inlet channel lower channel 26, preferably, the depth of the hydrogen inlet channel lower channel 26 is less than one half of the thickness of the pack top plate 2.
As shown in fig. 6, the pack top plate 2 further includes an air input channel sealing groove 213, a coolant output channel sealing groove 223, a hydrogen output channel sealing groove 233, an air output channel sealing groove 243, a coolant input channel sealing groove 253, and a hydrogen input channel sealing groove 263; the air inlet channel seal groove 213, the coolant outlet channel seal groove 223, the hydrogen outlet channel seal groove 233, the air outlet channel seal groove 243, the coolant inlet channel seal groove 253, and the hydrogen inlet channel seal groove 263 are all expressed using hatching in fig. 6.
The air input channel sealing groove 213 is arranged at the outer edge of the air input channel lower channel 21, the air input channel sealing groove 213 is correspondingly provided with a sealing gasket, the size and the shape of the opening of the air input channel upper channel 17 are consistent with the size and the shape of the opening of the air input channel lower channel 21, when the upper cover plate 1 is matched and connected with the pack top plate 2, the air input channel upper channel 17 is correspondingly matched and connected with the air input channel lower channel 21, the air input channel upper channel 17 and the air input channel lower channel 21 are combined into an air input channel, and the sealing gasket of the air input channel sealing groove 213 is used for sealing between the air input channel upper channel 17 and the air input channel lower channel 21; preferably, the air inlet channel upper channel 17 and the air inlet channel lower channel 21 are both semi-cylindrical, so that the air inlet channel formed by combining the air inlet channel upper channel 17 and the air inlet channel lower channel 21 is cylindrical;
the cooling liquid output channel sealing groove 223 is arranged at the outer edge of the cooling liquid output channel lower channel 22, a sealing gasket is correspondingly arranged on the cooling liquid output channel sealing groove 223, the opening of the cooling liquid output channel upper channel 18 and the opening of the cooling liquid output channel lower channel 22 are identical in size and shape, when the upper cover plate 1 is matched and connected with the pack top plate 2, the cooling liquid output channel upper channel 18 and the cooling liquid output channel lower channel 22 are correspondingly matched and connected, the cooling liquid output channel upper channel 18 and the cooling liquid output channel lower channel 22 are combined into a cooling liquid output channel, and the sealing gasket of the cooling liquid output channel sealing groove 223 is used for sealing between the cooling liquid output channel upper channel 18 and the cooling liquid output channel lower channel 22; preferably, the upper cooling liquid outlet channel 18 and the lower cooling liquid outlet channel 22 are semi-cylindrical, so that the air inlet channel formed by combining the upper cooling liquid outlet channel 18 and the lower cooling liquid outlet channel 22 is cylindrical;
the hydrogen output channel sealing groove 233 is arranged at the outer edge of the hydrogen output channel lower channel 23, the hydrogen output channel sealing groove 233 is correspondingly provided with a sealing gasket, the opening of the hydrogen output channel upper channel 19 and the opening of the hydrogen output channel lower channel 23 are identical in size and shape, when the upper cover plate 1 is matched and connected with the pack top plate 2, the hydrogen output channel upper channel 19 is correspondingly matched and connected with the hydrogen output channel lower channel 23, the hydrogen output channel upper channel 19 and the hydrogen output channel lower channel 23 are combined into an air input channel, and the sealing gasket of the hydrogen output channel sealing groove 233 is used for sealing between the hydrogen output channel upper channel 19 and the hydrogen output channel lower channel 23; preferably, the hydrogen output channel upper channel 19 and the hydrogen output channel lower channel 23 are both semi-cylindrical, so that the air input channel formed by combining the hydrogen output channel upper channel 19 and the hydrogen output channel lower channel 23 is cylindrical;
the air output channel sealing groove 243 is arranged at the outer edge of the air output channel lower channel 24, the air output channel sealing groove 243 is correspondingly provided with a sealing gasket, the size and the shape of the opening of the air output channel upper channel 101 are consistent with the size and the shape of the opening of the air output channel lower channel 24, when the upper cover plate 1 is matched and connected with the pack top plate 2, the air output channel upper channel 101 is correspondingly matched and connected with the air output channel lower channel 24, the air output channel upper channel 101 and the air output channel lower channel 24 are combined into an air input channel, and the sealing gasket of the air output channel sealing groove 243 is used for sealing between the air output channel upper channel 101 and the air output channel lower channel 24; preferably, the air output channel upper channel 101 and the air output channel lower channel 24 are both semi-cylindrical, so that the air input channel formed by combining the air output channel upper channel 101 and the air output channel lower channel 24 is cylindrical;
the cooling liquid input channel sealing groove 253 is arranged at the outer edge of the cooling liquid input channel lower channel 25, a sealing gasket is correspondingly arranged on the cooling liquid input channel sealing groove 253, the opening of the cooling liquid input channel upper channel 102 and the opening of the cooling liquid input channel lower channel 25 are identical in size and shape, when the upper cover plate 1 is matched and connected with the pack top plate 2, the cooling liquid input channel upper channel 102 and the cooling liquid input channel lower channel 25 are correspondingly matched and connected, the cooling liquid input channel upper channel 102 and the cooling liquid input channel lower channel 25 are combined into an air input channel, and the sealing gasket of the cooling liquid input channel sealing groove 253 is used for sealing between the cooling liquid input channel upper channel 102 and the cooling liquid input channel lower channel 25; preferably, the upper cooling fluid inlet channel 102 and the lower cooling fluid inlet channel 25 are semi-cylindrical, so that the air inlet channel formed by the combination of the upper cooling fluid inlet channel 102 and the lower cooling fluid inlet channel 25 is cylindrical;
the hydrogen input channel sealing groove 263 is arranged at the outer edge of the hydrogen input channel lower channel 26, a sealing gasket is correspondingly arranged on the hydrogen input channel sealing groove 263, the opening of the hydrogen input channel upper channel 103 and the opening of the hydrogen input channel lower channel 26 are identical in size and shape, when the upper cover plate 1 is matched and connected with the pack top plate 2, the hydrogen input channel upper channel 103 is correspondingly matched and connected with the hydrogen input channel lower channel 26, the hydrogen input channel upper channel 103 and the hydrogen input channel lower channel 26 are combined into an air input channel, and the sealing gasket of the hydrogen input channel sealing groove 263 is used for sealing between the hydrogen input channel upper channel 103 and the hydrogen input channel lower channel 26; preferably, the hydrogen input channel upper channel 103 and the hydrogen input channel lower channel 26 are both semi-cylindrical, and thus, the air input channel formed by combining the hydrogen input channel upper channel 103 and the hydrogen input channel lower channel 26 is cylindrical.
As shown in fig. 7, on the lower end face of the pack top plate 2, the pack top plate 2 includes a first coolant output distribution channel upper passage 271, a second coolant output distribution channel upper passage 272, a first coolant input distribution channel upper passage 273, and a second coolant input distribution channel upper passage 274; the first cooling liquid output distribution channel upper channel 271, the second cooling liquid output distribution channel upper channel 272, the first cooling liquid input distribution channel upper channel 273 and the second cooling liquid input distribution channel upper channel 274 all belong to grooves on the lower end face of the pack top plate 2; the depths of the first cooling liquid output distribution channel upper channel 271, the second cooling liquid output distribution channel upper channel 272, the first cooling liquid input distribution channel upper channel 273 and the second cooling liquid input distribution channel upper channel 274 are all less than half of the thickness of the pack top plate 2;
the cooling liquid output first diversion hole 221 is positioned inside the first cooling liquid output distribution channel upper channel 271 and at the right end of the first cooling liquid output distribution channel upper channel 271; the cooling liquid output second diversion hole 222 is positioned inside the second cooling liquid output distribution channel upper channel 272 and at the right end of the second cooling liquid output distribution channel upper channel 272;
the coolant inlet first flow dividing hole 251 is located inside the first coolant inlet distribution channel upper channel 273 and at the left end of the first coolant inlet distribution channel upper channel 273; the coolant inlet second distribution hole 252 is located within the second coolant inlet distribution channel upper passage 274 at the left end of the second coolant inlet distribution channel upper passage 274.
As shown in fig. 7, the pack top plate 2 further includes a first seal groove 281, a second seal groove 282, a third seal groove 283, and a fourth seal groove 284; in fig. 7, the first, second, third and fourth seal grooves 281, 282, 283, 284 are all expressed using shadow filling;
the first sealing groove 281 is arranged at the outer edges of the hydrogen output first flow dividing hole 231, the first cooling liquid output distribution channel upper channel 271 and the air input first flow dividing hole 211, and a sealing gasket is correspondingly arranged on the first sealing groove 281;
the second sealing groove 282 is formed at the outer edges of the hydrogen output second flow dividing hole 232, the second cooling liquid output distribution channel upper channel 272 and the air input second flow dividing hole 212, and a sealing gasket is correspondingly arranged on the second sealing groove 282;
the third seal groove 283 is arranged at the outer edges of the hydrogen input first flow dividing hole 261, the first cooling liquid input distribution channel upper channel 273 and the air output first flow dividing hole 241, and a seal gasket is correspondingly arranged on the third seal groove 283;
the fourth sealing groove 284 is formed at the outer edges of the hydrogen inlet second distribution hole 262, the second coolant inlet distribution channel upper passage 274, and the air outlet second distribution hole 242, and a gasket is disposed in the fourth sealing groove 284.
As shown in fig. 8 and 9, the end plate 3 includes an upper end surface and a lower end surface; as shown in fig. 8, on the upper end face of the end plate 3, the end plate 3 includes a first air input port 31, a first cooling liquid output port 32, a first hydrogen output port 33, a second air input port 34, a second cooling liquid output port 35, a second hydrogen output port 36, a first air output port 37, a first cooling liquid input port 38, a first hydrogen input port 39, a second air output port 301, a second cooling liquid input port 302, a second hydrogen input port 303, a first hydrogen output distribution channel 331, a first cooling liquid output distribution channel lower channel 321, a second hydrogen output distribution channel 361, a second cooling liquid output distribution channel lower channel 351, a first hydrogen input distribution channel 391, a first cooling liquid input distribution channel lower channel 381, a second hydrogen input distribution channel 3031, and a second cooling liquid input distribution channel lower channel 3021;
the first air inlet 31, the first cooling liquid outlet 32, the first hydrogen outlet 33, the second air inlet 34, the second cooling liquid outlet 35, the second hydrogen outlet 36, the first air outlet 37, the first cooling liquid inlet 38, the first hydrogen inlet 39, the second air outlet 301, the second cooling liquid inlet 302 and the second hydrogen inlet 303 all vertically penetrate through the end plate 3;
the first hydrogen output distribution channel 331, the first cooling liquid output distribution channel lower channel 321, the second hydrogen output distribution channel 361, the second cooling liquid output distribution channel lower channel 351, the first hydrogen input distribution channel 391, the first cooling liquid input distribution channel lower channel 381, the second hydrogen input distribution channel 3031 and the second cooling liquid input distribution channel lower channel 3021 all belong to grooves on the upper end face of the end plate 3;
the depths of the first hydrogen output distribution channel 331, the first cooling liquid output distribution channel lower channel 321, the second hydrogen output distribution channel 361, the second cooling liquid output distribution channel lower channel 351, the first hydrogen input distribution channel 391, the first cooling liquid input distribution channel lower channel 381, the second hydrogen input distribution channel 3031 and the second cooling liquid input distribution channel lower channel 3021 are all smaller than the thickness of the end plate 3;
the first cooling liquid output port 32 is located at the left end of the first cooling liquid output distribution channel lower channel 321, and the first cooling liquid output port 32 is located inside the first cooling liquid output distribution channel lower channel 321;
the first hydrogen output port 33 is located at the left end of the first hydrogen output distribution channel 331, and the first hydrogen output port 33 is located inside the first hydrogen output distribution channel 331;
the second cooling liquid output port 35 is located at the left end of the second cooling liquid output distribution channel lower channel 351, and the second cooling liquid output port 35 is located inside the second cooling liquid output distribution channel lower channel 351;
the second hydrogen output port 36 is located at the left end of the second hydrogen output distribution channel 361, and the second hydrogen output port 36 is located inside the second hydrogen output distribution channel 361;
the first cooling liquid inlet 38 is located at the right end of the first cooling liquid inlet distribution channel lower channel 381, and the first cooling liquid inlet 38 is located inside the first cooling liquid inlet distribution channel lower channel 381;
the first hydrogen input port 39 is located at the right end of the first hydrogen input distribution channel 391, and the first hydrogen input port 39 is located inside the first hydrogen input distribution channel 391;
the second coolant inlet port 302 is located at the right end of the second coolant inlet distribution channel lower channel 3021, and the second coolant inlet port 302 is located inside the second coolant inlet distribution channel lower channel 3021;
the second hydrogen input port 303 is located at the right end of the second hydrogen input distribution channel 3031, and the second hydrogen input port 303 is located inside the second hydrogen input distribution channel 3031.
The openings of the first cooling liquid output distribution channel upper channel 271 and the first cooling liquid output distribution channel lower channel 321 are consistent in size and shape, when the pack top plate 2 and the end plate 3 are connected in a matched mode, the first cooling liquid output distribution channel upper channel 271 and the first cooling liquid output distribution channel lower channel 321 are correspondingly connected in a matched mode, and the first cooling liquid output distribution channel upper channel 271 and the first cooling liquid output distribution channel lower channel 321 are combined to form a first cooling liquid output distribution channel;
the openings of the second cooling liquid output distribution channel upper channel 272 and the second cooling liquid output distribution channel lower channel 351 are consistent in size and shape, when the pack top plate 2 and the end plate 3 are connected in a matching mode, the second cooling liquid output distribution channel upper channel 272 and the second cooling liquid output distribution channel lower channel 351 are correspondingly connected in a matching mode, and the second cooling liquid output distribution channel upper channel 272 and the second cooling liquid output distribution channel lower channel 351 are combined into a second cooling liquid output distribution channel;
the openings of the first cooling liquid input distribution channel upper channel 273 and the first cooling liquid input distribution channel lower channel 381 are identical in size and shape, when the pack top plate 2 and the end plate 3 are connected in a matched mode, the first cooling liquid input distribution channel upper channel 273 and the first cooling liquid input distribution channel lower channel 381 are correspondingly connected in a matched mode, and the first cooling liquid input distribution channel upper channel 273 and the first cooling liquid input distribution channel lower channel 381 are combined into a first cooling liquid input distribution channel;
the openings of the upper channel 274 and the lower channel 3021 of the second cooling liquid input distribution channel are identical in size and shape, when the pack top plate 2 and the end plate 3 are connected in a matching manner, the upper channel 274 and the lower channel 3021 of the second cooling liquid input distribution channel are correspondingly connected in a matching manner, and the upper channel 274 and the lower channel 3021 of the second cooling liquid input distribution channel are combined into a second cooling liquid input distribution channel;
preferably, the first hydrogen output distribution channel 331, the second hydrogen output distribution channel 361, the first hydrogen input distribution channel 391 and the second hydrogen input distribution channel 3031 are all identical in shape and size; the first cooling liquid output distribution channel and the second cooling liquid output distribution channel; a first cooling fluid input distribution channel; the shape and the size of the second cooling liquid input distribution channel are consistent.
As shown in fig. 8, when the pack top plate 2 and the end plate 3 are coupled, the hydrogen gas output first split hole 231 is located at the right end of the first hydrogen gas output distribution passage 331 and inside the first hydrogen gas output distribution passage 331; the hydrogen output second split hole 232 is positioned at the right end of the second hydrogen output distribution channel 361 and is positioned inside the second hydrogen output distribution channel 361; the hydrogen input first split hole 261 is located at the left end of the first hydrogen input distribution channel 391 and inside the first hydrogen input distribution channel 391; the hydrogen gas input second split hole 262 is located at the left end of the second hydrogen gas input distribution channel 3031 and inside the second hydrogen gas input distribution channel 3031.
The first seal slot 281 houses a seal for: when the pack top plate 2 and the end plate 3 are connected in a matching manner, the air input first diversion hole 211 is correspondingly connected with the first air input port 31 in a matching manner, the first cooling liquid output distribution channel upper channel 271 is correspondingly connected with the first cooling liquid output distribution channel lower channel 321 in a matching manner, the hydrogen output first diversion hole 231 is opened at the right end of the first hydrogen output distribution channel 331 and is positioned inside the first hydrogen output distribution channel 331, and the sealing gaskets are used for sealing between the air input first diversion hole 211 and the first air input port 31, sealing between the first cooling liquid output distribution channel upper channel 271 and the first cooling liquid output distribution channel lower channel 321 and sealing between the first hydrogen output distribution channel 331 and the lower end face of the pack top plate 2;
the second seal groove 282 is configured to receive a seal: when the pack top plate 2 and the end plate 3 are connected in a matching way, the air input second diversion hole 212 is correspondingly connected with the second air input port 34 in a matching way, the second cooling liquid output distribution channel upper channel 272 is correspondingly connected with the second cooling liquid output distribution channel lower channel 351 in a matching way, and the opening of the hydrogen output second diversion hole 232 is positioned at the right end of the second hydrogen output distribution channel 361 and positioned inside the second hydrogen output distribution channel 361; the sealing gaskets are used for sealing between the air input second flow dividing hole 212 and the second air input port 34, for sealing between the second cooling liquid output distribution channel upper channel 272 and the second cooling liquid output distribution channel lower channel 351, and for sealing between the second hydrogen output distribution channel 361 and the lower end face of the pack top plate 2;
the third seal groove 283 is used for placing a seal gasket for: when the pack top plate 2 and the end plate 3 are connected in a matching way, the air output first diversion hole 241 is correspondingly connected with the first air output port 37 in a matching way, the first cooling liquid input distribution channel upper channel 273 is correspondingly connected with the first cooling liquid input distribution channel lower channel 381 in a matching way, and the opening of the hydrogen input first diversion hole 261 is positioned at the right end of the first hydrogen input distribution channel 391 and positioned inside the first hydrogen input distribution channel 391; the gasket is used for sealing between the air output first split hole 241 and the first air output port 37, for sealing between the first cooling liquid input distribution channel upper channel 273 and the first cooling liquid input distribution channel lower channel 381, and for sealing between the first hydrogen input distribution channel 391 and the lower end face of the pack top plate 2;
the gasket positioned with fourth seal groove 284 is used to: when the pack top plate 2 and the end plate 3 are connected in a matching mode, the air output second diversion hole 242 and the second air output port 301 are correspondingly connected in a matching mode, the second cooling liquid input distribution channel upper channel 274 and the second cooling liquid input distribution channel lower channel 3021 are correspondingly connected in a matching mode, and the hydrogen input second diversion hole 262 is located at the right end of the second hydrogen input distribution channel 3031 and located inside the second hydrogen input distribution channel 3031; the gasket is used for sealing between the air outlet second distribution hole 242 and the second air outlet 301, for sealing between the second cooling fluid inlet distribution channel upper passage 274 and the second cooling fluid inlet distribution channel lower passage 3021, and for sealing between the second hydrogen inlet distribution channel 3031 and the lower end surface of the pack top plate 2.
In practical application, two fuel cell stacks in parallel need to be connected, so that the end plate 3 can be divided into two end plates, that is, the end plate 3 includes a first end plate and a second end plate, where the first end plate includes a first air input port 31, a first cooling liquid output port 32, a first hydrogen output port 33, a second air output port 301, a second cooling liquid input port 302, a second hydrogen input port 303, a first hydrogen output distribution channel 331, a first cooling liquid output distribution channel lower channel 321, a second hydrogen input distribution channel 3031, and a second cooling liquid input distribution channel lower channel 3021; the second air input port 34, the second coolant output port 35, the second hydrogen output port 36, and the second end plate include a first air output port 37, a first coolant input port 38, a first hydrogen input port 39, a second hydrogen output distribution channel 361, a second coolant output distribution channel lower channel 351, a first hydrogen input distribution channel 391, and a first coolant input distribution channel 381.
In a particular embodiment, for the input and output of air: the air input joint 41 receives air transmitted by external equipment (such as an air compressor which transmits the air to the air input joint 41 through a pipeline), and the air enters the air input hole 11 through the air input joint 41 and then enters the central position of an air input channel formed by combining the upper channel 17 of the air input channel and the lower channel 21 of the air input channel; the air input channel distributes air evenly to its two ends, entering the air input first splitter hole 211 and the air input second splitter hole 212, respectively; the air is respectively fed into the air inlets of the two fuel cell stacks through the first air inlet 31 and the second air inlet 34 by the air feeding first flow dividing hole 211 and the air feeding second flow dividing hole 212, the air is respectively fed into the air inlets of the two fuel cell stacks through the first air inlet 31 and the second air inlet 34, after the air is electrochemically reacted by the cathodes of the bipolar plates in the two fuel cell stacks, the air which is not completely reacted is fed from the outlets of the two fuel cell stacks to the first air outlet 37 and the second air outlet 301, and the air is respectively fed into the air feeding first flow dividing hole 241 and the air feeding second flow dividing hole 242 by the first air outlet 37 and the second air outlet 301, namely the air is fed into the air feeding channel (the air feeding channel is composed of the air feeding channel lower channel 24 and the air feeding channel upper channel 101) through the air feeding first flow dividing hole 241 and the air feeding second flow dividing hole 242 and then collected, finally, the air is discharged to the outside through the air outlet hole 14 and the air outlet connector 51.
In a particular embodiment, for the input and output of hydrogen: hydrogen enters a hydrogen input channel (the hydrogen input channel consists of a hydrogen input channel upper channel 103 and a hydrogen input channel lower channel 26) through a hydrogen input joint 53 and a hydrogen input hole 16, the hydrogen input channel uniformly distributes the hydrogen to a hydrogen input first diversion hole 261 and a hydrogen input second diversion hole 262 at two ends of the hydrogen input channel, the hydrogen input first diversion hole 261 and the hydrogen input second diversion hole 262 respectively convey the hydrogen to a first hydrogen output distribution channel 331 and a second hydrogen output distribution channel 361, and the first hydrogen output distribution channel 331 and the second hydrogen output distribution channel 361 respectively guide the hydrogen to a first hydrogen input port 39 and a second hydrogen input port 303; hydrogen enters the hydrogen inlets of the two fuel cell stacks from the first hydrogen inlet 39 and the second hydrogen inlet 303, bipolar plates inside the fuel cell stacks perform electrochemical reaction on the hydrogen, and the hydrogen tail gas which is not completely reacted is discharged from the fuel cell stacks to the first hydrogen outlet 33 and the second hydrogen outlet 36; the hydrogen gas enters a first hydrogen gas output distribution channel 331 and a second hydrogen gas output distribution channel 361, the first hydrogen gas output distribution channel 331 and the second hydrogen gas output distribution channel 361 respectively guide the hydrogen gas to a first hydrogen gas output flow dividing hole 231 and a second hydrogen gas output flow dividing hole 232, the hydrogen gas output channel (the hydrogen gas output channel is composed of a lower hydrogen gas output channel 23 and an upper hydrogen gas output channel 19) collects the hydrogen gas conveyed by the first hydrogen gas output flow dividing hole 231 and the second hydrogen gas output flow dividing hole 232, and the collected hydrogen gas is discharged to the outside through a hydrogen gas output hole 13 and a hydrogen gas output joint 43 (the hydrogen gas output joint 43 can be externally connected with a recovery device for circularly recovering the hydrogen gas).
In a particular embodiment, for the input and output of the cooling liquid: the coolant input joint 52 receives the coolant from the outside and feeds the coolant into the middle of the coolant input channel (the coolant input channel is composed of the upper coolant input channel 102 and the lower coolant input channel 25) through the coolant input hole 15, the coolant input channel uniformly distributes the coolant to the first coolant input diversion hole 251 and the second coolant input diversion hole 252, the cooling liquid is respectively input into a first cooling liquid input distribution channel and a second cooling liquid input distribution channel by the cooling liquid input first diversion hole 251 and the cooling liquid input second diversion hole 252 (the first cooling liquid output distribution channel is composed of a first cooling liquid output distribution channel upper channel 271 and a first cooling liquid output distribution channel lower channel 321, and the second cooling liquid input distribution channel is composed of a second cooling liquid output distribution channel upper channel 272 and a second cooling liquid output distribution channel lower channel 351); the first cooling liquid input distribution channel and the second cooling liquid input distribution channel respectively guide the cooling liquid to the first cooling liquid input port 38 and the second cooling liquid input port 302, the cooling liquid enters the interior of the bipolar plates of the two fuel cell stacks through the first cooling liquid input port 38 and the second cooling liquid input port 302 to perform cooling action on the bipolar plates, the cooling liquid carrying away heat flows out from the interior of the bipolar plates, the cooling liquid reaches the first cooling liquid output distribution channel and the second cooling liquid output distribution channel through the first cooling liquid output port 32 and the second cooling liquid output port 35 (the first cooling liquid output distribution channel consists of a first cooling liquid output distribution channel upper channel 271 and a first cooling liquid output distribution channel lower channel 321, and the second cooling liquid output distribution channel consists of a second cooling liquid output distribution channel upper channel 272 and a second cooling liquid output distribution channel lower channel 351), the first cooling liquid output distribution channel and the second cooling liquid output distribution channel respectively guide the cooling liquid to the first cooling liquid output flow dividing hole 221 and the second cooling liquid output flow dividing hole 222, the cooling liquid output channel receives and collects the cooling liquid (composed of the upper cooling liquid output channel 18 and the lower cooling liquid output channel 22) conveyed by the first cooling liquid output flow dividing hole 221 and the second cooling liquid output flow dividing hole 222, and the cooling liquid output channel discharges the collected cooling liquid from the cooling liquid output hole 12 and the cooling liquid output joint 42 to the outside.
The invention discloses a manifold device of a fuel cell stack, which hollows the interiors of an upper cover plate, a pack top plate and an end plate so as to obtain a series of channels required by a manifold, and comprises: a gas-liquid input/output hole (such as an air input hole, a coolant output hole, a hydrogen output hole, an air output hole, a coolant input hole and a hydrogen input hole), a gas-liquid input/output channel (such as an air input channel, a coolant output channel, a hydrogen output channel, an air output channel, a coolant input channel, a hydrogen input channel), a gas-liquid input/output split-flow hole (such as an air input first split-flow hole, an air input second split-flow hole, a coolant output first split-flow hole, a coolant output second split-flow hole, a hydrogen output first split-flow hole, a hydrogen output second split-flow hole, an air output first split-flow hole, an air output second split-flow hole, a coolant input first split-flow hole, a hydrogen input second split flow hole), a gas-liquid input/output distribution channel (such as a first coolant output distribution channel, a hydrogen distribution channel, a liquid distribution channel, a hydrogen distribution channel, a liquid distribution channel, a second cooling fluid output distribution channel, a first cooling fluid input distribution channel, a second cooling fluid input distribution channel, a first hydrogen output distribution channel, a second hydrogen output distribution channel, a first hydrogen input distribution channel, and a second hydrogen input distribution channel), and a gas-liquid input/output port (e.g., a first air input port, a first cooling fluid output port, a first hydrogen output port, a second air input port, a second cooling fluid output port, a second hydrogen output port, a first air output port, a first cooling fluid input port, a first hydrogen input port, a second air output port, a second cooling fluid input port, and a second hydrogen input port). The manifold device is arranged in the upper cover plate, the pack top plate and the end plate of the fuel cell stack, so that the manifold device is highly integrated, the cost of the fuel cell stack is greatly reduced, and the spatial layout of the fuel cell stack is easy.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various equivalent changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims (10)

1. A manifold device of a fuel cell stack comprises a pack top plate and an end plate and is characterized by also comprising an upper cover plate, wherein the upper cover plate, the pack top plate and the end plate are sequentially connected in a matching way;
the upper cover plate comprises an air input hole, a cooling liquid output hole, a hydrogen output hole, an air output hole, a cooling liquid input hole and a hydrogen input hole; the air input hole, the cooling liquid output hole, the hydrogen output hole, the air output hole, the cooling liquid input hole and the hydrogen input hole penetrate through the upper cover plate;
the upper cover plate also comprises an air input channel upper channel, a cooling liquid output channel upper channel, a hydrogen output channel upper channel, an air output channel upper channel, a cooling liquid input channel upper channel and a hydrogen input channel upper channel; the hydrogen output channel is arranged on the hydrogen output channel, the air output hole is arranged at the upper end of the upper channel of the air output channel, the cooling liquid input hole is arranged in the middle of the upper channel of the cooling liquid input channel, and the hydrogen input hole is arranged in the middle of the upper channel of the hydrogen input channel;
the pack top plate comprises an air input channel lower channel, a cooling liquid output channel lower channel, a hydrogen output channel lower channel, an air output channel lower channel, a cooling liquid input channel lower channel, a hydrogen input channel lower channel, an air input first diversion hole, an air input second diversion hole, a cooling liquid output first diversion hole, a cooling liquid output second diversion hole, a hydrogen output first diversion hole, a hydrogen output second diversion hole, an air output first diversion hole, an air output second diversion hole, a cooling liquid input first diversion hole, a cooling liquid input second diversion hole, a hydrogen input first diversion hole and a hydrogen input second diversion hole;
the air input first diversion hole, the air input second diversion hole, the cooling liquid output first diversion hole, the cooling liquid output second diversion hole, the hydrogen output first diversion hole, the hydrogen output second diversion hole, the air output first diversion hole, the air output second diversion hole, the cooling liquid input first diversion hole, the cooling liquid input second diversion hole, the hydrogen input first diversion hole and the hydrogen input second diversion hole penetrate through the pack top plate;
the cooling liquid output first diversion hole and the cooling liquid output second diversion hole are respectively positioned at the upper end and the lower end of the lower channel of the cooling liquid output channel; the hydrogen output first flow dividing hole and the hydrogen output second flow dividing hole are respectively positioned at the upper end and the lower end of the lower channel of the hydrogen output channel; the air output first diversion hole and the air output second diversion hole are respectively positioned at the lower end and the upper end of the lower channel of the air output channel; the cooling liquid input first diversion hole and the cooling liquid input second diversion hole are respectively positioned at the lower end and the upper end of the lower channel of the cooling liquid input channel; the hydrogen input first flow dividing hole and the hydrogen input second flow dividing hole are respectively positioned at the lower end and the upper end of the lower channel of the hydrogen input channel;
the upper channel of the air input channel and the lower channel of the air input channel are combined into an air input channel; the upper channel of the cooling liquid output channel and the lower channel of the cooling liquid output channel are combined into a cooling liquid output channel; the upper channel of the hydrogen output channel and the lower channel of the hydrogen output channel are combined into an air input channel; the upper channel of the air output channel and the lower channel of the air output channel are combined into an air input channel; the upper channel of the cooling liquid input channel and the lower channel of the cooling liquid input channel are combined into an air input channel; the upper channel of the hydrogen input channel and the lower channel of the hydrogen input channel are combined into an air input channel;
the pack top plate also comprises a first cooling liquid output distribution channel upper channel, a second cooling liquid output distribution channel upper channel, a first cooling liquid input distribution channel upper channel and a second cooling liquid input distribution channel upper channel;
the cooling liquid output first diversion hole is positioned in the upper channel of the first cooling liquid output distribution channel and at the right end of the upper channel of the first cooling liquid output distribution channel; the cooling liquid output second diversion hole is positioned in the upper channel of the second cooling liquid output distribution channel and at the right end of the upper channel of the second cooling liquid output distribution channel; the cooling liquid input first diversion hole is positioned in the upper channel of the first cooling liquid input distribution channel and at the left end of the upper channel of the first cooling liquid input distribution channel; the cooling liquid input second diversion hole is positioned in the upper channel of the second cooling liquid input distribution channel and at the left end of the upper channel of the second cooling liquid input distribution channel;
the end plate comprises a first air inlet, a first cooling liquid outlet, a first hydrogen outlet, a second air inlet, a second cooling liquid outlet, a second hydrogen outlet, a first air outlet, a first cooling liquid inlet, a first hydrogen inlet, a second air outlet, a second cooling liquid inlet, a second hydrogen inlet, a first hydrogen output distribution channel, a first cooling liquid output distribution channel lower channel, a second hydrogen output distribution channel, a second cooling liquid output distribution channel lower channel, a first hydrogen input distribution channel, a first cooling liquid input distribution channel lower channel, a second hydrogen input distribution channel and a second cooling liquid input distribution channel lower channel;
the first air inlet, the first cooling liquid outlet, the first hydrogen outlet, the second air inlet, the second cooling liquid outlet, the second hydrogen outlet, the first air outlet, the first cooling liquid inlet, the first hydrogen inlet, the second air outlet, the second cooling liquid inlet and the second hydrogen inlet penetrate through the end plate;
the first cooling liquid output port is positioned at the left end of the lower channel of the first cooling liquid output distribution channel; the first hydrogen output port is positioned at the left end of the first hydrogen output distribution channel; the second cooling liquid output port is positioned at the left end of the lower channel of the second cooling liquid output distribution channel; the second hydrogen output port is positioned at the left end of the second hydrogen output distribution channel; the first cooling liquid input port is positioned at the right end of the lower channel of the first cooling liquid input distribution channel; the first hydrogen input port is positioned at the right end of the first hydrogen input distribution channel; the second cooling liquid input port is positioned at the right end of the lower channel of the second cooling liquid input distribution channel; the second hydrogen input port is positioned at the right end of the second hydrogen input distribution channel;
the first cooling liquid output distribution channel upper channel and the first cooling liquid output distribution channel lower channel are combined into a first cooling liquid output distribution channel; the upper channel of the second cooling liquid output distribution channel and the lower channel of the second cooling liquid output distribution channel are combined into a second cooling liquid output distribution channel; the first cooling liquid input distribution channel upper channel and the first cooling liquid input distribution channel lower channel are combined into a first cooling liquid input distribution channel; the upper channel of the second cooling liquid input distribution channel and the lower channel of the second cooling liquid input distribution channel are combined into a second cooling liquid input distribution channel;
the sizes and the shapes of the upper channel openings of the first cooling liquid output distribution channels and the lower channel openings of the first cooling liquid output distribution channels are consistent, the sizes and the shapes of the upper channel openings of the second cooling liquid output distribution channels and the lower channel openings of the second cooling liquid output distribution channels are consistent, the sizes and the shapes of the upper channel openings of the first cooling liquid input distribution channels and the lower channel openings of the first cooling liquid input distribution channels are consistent, and the sizes and the shapes of the upper channel openings of the second cooling liquid input distribution channels and the lower channel openings of the second cooling liquid input distribution channels are consistent; when the pack top plate and the end plate are connected in a matched mode, the upper channel of the first cooling liquid output distribution channel and the lower channel of the first cooling liquid output distribution channel are correspondingly connected in a matched mode, the upper channel of the second cooling liquid output distribution channel and the lower channel of the second cooling liquid output distribution channel are correspondingly connected in a matched mode, the upper channel of the first cooling liquid input distribution channel and the lower channel of the first cooling liquid input distribution channel are correspondingly connected in a matched mode, and the upper channel of the second cooling liquid input distribution channel and the lower channel of the second cooling liquid input distribution channel are correspondingly connected in a matched mode;
when pack roof and end plate cooperation are connected, the first reposition of redundant personnel of hydrogen output is located inside first hydrogen output distribution passageway, the second reposition of redundant personnel of hydrogen output is located inside second hydrogen output distribution passageway, the first reposition of redundant personnel of hydrogen input is located inside first hydrogen input distribution passageway, the second reposition of redundant personnel of hydrogen input is located inside second hydrogen input distribution passageway.
2. The manifold device for a fuel cell stack according to claim 1, further comprising an air input joint, a coolant output joint, a hydrogen output joint, an air output joint, a coolant input joint, and a hydrogen input joint; the air input connector, the cooling liquid output connector, the hydrogen output connector, the air output connector, the cooling liquid input connector and the hydrogen input connector are respectively matched and fixedly connected with the air input hole, the cooling liquid output hole, the hydrogen output hole, the air output hole, the cooling liquid input hole and the hydrogen input hole.
3. The manifold assembly of a fuel cell stack according to claim 2, wherein the air inlet hole comprises an air inlet hole sealing groove disposed at an outer edge of the air inlet hole, the air inlet hole sealing groove being formed to correspond to a gasket for sealing between the air inlet hole and the air inlet connector;
the cooling liquid output hole comprises a cooling liquid output hole sealing groove, the cooling liquid output hole sealing groove is arranged at the outer edge of the cooling liquid output hole, a sealing gasket is correspondingly arranged on the cooling liquid output hole sealing groove, and the sealing gasket is used for sealing between the cooling liquid output hole and the cooling liquid output connector;
the hydrogen output hole comprises a hydrogen output hole sealing groove which is arranged at the outer edge of the hydrogen output hole, a sealing gasket is correspondingly arranged on the hydrogen output hole sealing groove, and the sealing gasket is used for sealing between the hydrogen output hole and the hydrogen output connector;
the air output hole comprises an air output hole sealing groove, the air output hole sealing groove is arranged at the outer edge of the air output hole, a sealing gasket is correspondingly arranged on the air output hole sealing groove, and the sealing gasket is used for sealing between the air output hole and the air output connector;
the cooling liquid input hole comprises a cooling liquid input hole sealing groove, the cooling liquid input hole sealing groove is arranged at the outer edge of the cooling liquid input hole, a sealing gasket is correspondingly arranged on the cooling liquid input hole sealing groove, and the sealing gasket is used for sealing between the cooling liquid input hole and the cooling liquid input joint;
the hydrogen input hole comprises a hydrogen input hole sealing groove, the hydrogen input hole sealing groove is arranged on the outer edge of the hydrogen input hole, a sealing gasket is correspondingly arranged on the hydrogen input hole sealing groove, and the sealing gasket is used for sealing between the hydrogen input hole and the hydrogen input connector.
4. The manifold device for a fuel cell stack according to claim 3, wherein the air inlet hole, the coolant outlet hole, the hydrogen outlet hole, the air outlet hole, the coolant inlet hole, and the hydrogen inlet hole are cylindrical through holes;
the air input hole sealing groove, the cooling liquid output hole sealing groove, the hydrogen output hole sealing groove, the air output hole sealing groove, the cooling liquid input hole sealing groove and the hydrogen input hole sealing groove are all circular rings.
5. The manifold device of a fuel cell stack according to claim 1, wherein the upper air inlet channel and the lower air inlet channel are semi-cylindrical, and the combined air inlet channel of the upper air inlet channel and the lower air inlet channel is cylindrical;
the upper channel and the lower channel of the cooling liquid output channel are both semi-cylindrical, and the air input channel formed by combining the upper channel and the lower channel of the cooling liquid output channel is cylindrical;
the upper channel and the lower channel of the hydrogen output channel are both semi-cylindrical, and the air input channel formed by combining the upper channel and the lower channel of the hydrogen output channel is cylindrical;
the upper channel and the lower channel of the air output channel are both semi-cylindrical, and the air input channel formed by combining the upper channel and the lower channel of the air output channel is cylindrical;
the upper channel of the cooling liquid input channel and the lower channel of the cooling liquid input channel are both semi-cylindrical, and the air input channel formed by combining the upper channel of the cooling liquid input channel and the lower channel of the cooling liquid input channel is cylindrical;
the upper channel of the hydrogen input channel and the lower channel of the hydrogen input channel are both semi-cylindrical, and the air input channel formed by combining the upper channel of the hydrogen input channel and the lower channel of the hydrogen input channel is cylindrical.
6. The manifold assembly of a fuel cell stack as claimed in claim 1, wherein said pack top plate further comprises an air input channel seal groove, a coolant output channel seal groove, a hydrogen output channel seal groove, an air output channel seal groove, a coolant input channel seal groove, a hydrogen input channel seal groove;
the air input channel sealing groove is arranged at the outer edge of the lower channel of the air input channel, and the air input channel sealing groove is correspondingly provided with a sealing gasket;
the cooling liquid output channel sealing groove is arranged at the outer edge of the lower channel of the cooling liquid output channel, and a sealing gasket is correspondingly arranged on the cooling liquid output channel sealing groove;
the hydrogen output channel sealing groove is arranged at the outer edge of the lower channel of the hydrogen output channel, and a sealing gasket is correspondingly arranged on the hydrogen output channel sealing groove;
the air output channel sealing groove is arranged at the outer edge of the lower channel of the air output channel, and the air output channel sealing groove is correspondingly provided with a sealing gasket;
the cooling liquid input channel sealing groove is arranged at the outer edge of the lower channel of the cooling liquid input channel, and a sealing gasket is correspondingly arranged on the cooling liquid input channel sealing groove;
the hydrogen input channel sealing groove is arranged on the outer edge of the lower channel of the hydrogen input channel, and the hydrogen input channel sealing groove is correspondingly provided with a sealing gasket.
7. The manifolding for a fuel cell stack according to claim 1, wherein the pack top plate further comprises a first seal groove, a second seal groove, a third seal groove and a fourth seal groove;
the first sealing groove is arranged at the outer edges of the first hydrogen output and distribution hole, the upper channel of the first cooling liquid output and distribution channel and the first air input and distribution hole, and a sealing gasket is correspondingly arranged on the first sealing groove and used for sealing between the first air input and distribution hole and the first air input port, between the upper channel of the first cooling liquid output and distribution channel and the lower channel of the first cooling liquid output and distribution channel and between the first hydrogen output and distribution channel and the lower end face of the pack top plate;
the second sealing groove is arranged at the outer edges of the hydrogen output second diversion hole, the upper channel of the second cooling liquid output distribution channel and the air input second diversion hole, a sealing gasket is correspondingly arranged on the second sealing groove, and the sealing gasket is used for sealing between the air input second diversion hole and the second air input port, sealing between the upper channel of the second cooling liquid output distribution channel and the lower channel of the second cooling liquid output distribution channel and sealing between the second hydrogen output distribution channel and the lower end face of the pack top plate;
the third sealing groove is arranged at the outer edges of the hydrogen input first diversion hole, the first cooling liquid input distribution channel upper channel and the air output first diversion hole, a sealing gasket is correspondingly arranged on the third sealing groove, and the sealing gasket is used for sealing between the air output first diversion hole and the first air output port, sealing between the first cooling liquid input distribution channel upper channel and the first cooling liquid input distribution channel lower channel and sealing between the first hydrogen input distribution channel and the pack top plate lower end face;
the fourth seal groove is arranged on the outer edges of the channel and the air output second flow dividing hole in the hydrogen input second flow dividing hole and the second cooling liquid input distribution channel, a seal gasket is correspondingly arranged on the fourth seal groove, and the seal gasket is used for sealing between the air output second flow dividing hole and the second air output port, sealing between the channel on the second cooling liquid input distribution channel and the channel below the second cooling liquid input distribution channel and sealing between the second input port hydrogen input distribution channel and the lower end face of the pack top plate.
8. The manifold device for a fuel cell stack according to claim 1, wherein the depths of the air inlet channel upper channel, the coolant outlet channel upper channel, the hydrogen outlet channel upper channel, the air outlet channel upper channel, the coolant inlet channel upper channel and the hydrogen inlet channel upper channel are smaller than the thickness of the upper cover plate.
9. The manifold device for a fuel cell stack according to claim 1, wherein the depths of the air inlet channel lower channel, the coolant outlet channel lower channel, the hydrogen outlet channel lower channel, the air outlet channel lower channel, the coolant inlet channel lower channel and the hydrogen inlet channel lower channel are less than one-half of the pack top plate thickness;
the depths of the upper channel of the first cooling liquid output distribution channel, the upper channel of the second cooling liquid output distribution channel, the upper channel of the first cooling liquid input distribution channel and the upper channel of the second cooling liquid input distribution channel are all less than half of the thickness of the pack top plate.
10. The manifold assembly of a fuel cell stack as set forth in claim 1, wherein the first hydrogen output distribution channel, the first coolant output distribution channel lower channel, the second hydrogen output distribution channel, the second coolant output distribution channel lower channel, the first hydrogen input distribution channel, the first coolant input distribution channel lower channel, the second hydrogen input distribution channel, and the second coolant input distribution channel lower channel each have a depth less than the thickness of the end plate.
CN202210353272.4A 2022-04-06 2022-04-06 Manifold device of fuel cell stack Active CN114497672B (en)

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