CN218769621U - Hydrogen fuel cell stack shell - Google Patents

Abstract

The utility model discloses a hydrogen cell pile casing, which comprises a housin, the arrangement draw-in groove has all been seted up to the both sides of casing, and two equal blocks in inside of settling the draw-in groove are provided with the semiconductor refrigeration piece, and the refrigeration face of two semiconductor refrigeration pieces is the fixed mount pad that is provided with all, and the equal fixed mounting in middle part of fan one side has the fan is kept away from to two mount pads, and the radiating surface of two semiconductor refrigeration pieces is the fixed radiating fin who is provided with a plurality of evenly distributed all, the utility model relates to a hydrogen cell pile casing carries out the heat exchange to the air through the coolant liquid in a plurality of water-cooling pipe, comes to carry out the preliminary cooling to the inside gas of casing and handles, produces the cold air through the refrigeration face of two semiconductor refrigeration pieces, by the fan with the cold air in the inside circulation of casing, and then accelerate the discharge of the inside hot-air of casing, improves the cooling effect, avoids the inside high temperature of casing and then influences the life of hydrogen cell pile.

Description

A hydrogen fuel cell stack housing

technical field

The utility model relates to the field of hydrogen fuel cells, in particular to a hydrogen fuel cell stack shell.

Background technique

In recent years, the national and local governments have continued to increase support and guidance for the hydrogen energy industry. The 2019 government work report clearly stated that "promote the construction of charging, hydrogenation and other facilities", and the hydrogen energy industry has ushered in a round of investment boom. Compared with pure electric vehicles, hydrogen fuel cell vehicles have the advantages of short refueling time and long cruising range, and are one of the important directions for future vehicle development. Due to the poor heat dissipation and cooling performance of the housing, the temperature inside the housing cannot be cooled in time, thereby affecting the service life of the hydrogen fuel cell stack.

Utility model content

The purpose of the present utility model is to provide a hydrogen fuel cell stack casing to solve the problem that the heat dissipation and cooling performance of the casing is not good enough to solve the problem that the inside of the casing cannot be cooled in time, thereby affecting the hydrogen fuel cell. The problem of the service life of the stack.

In order to achieve the above purpose, the utility model provides the following technical solutions: a hydrogen fuel cell stack housing, including the housing, both sides of the housing are provided with a placement card slot, the inside of the two placement card slots Both of them are fitted with semiconductor cooling sheets, the cooling surfaces of the two semiconductor cooling sheets are fixedly provided with mounting seats, and the middle parts of the two mounting seats away from the fan side are fixedly installed with fans, and the two semiconductor cooling sheets The heat dissipation surfaces of the fins are fixed with several evenly distributed heat dissipation fins, and the bottom end of the inner wall of the housing is fixed with a water cooling assembly, and the water cooling assembly includes several annular water cooling pipes and several connecting branch pipes, each adjacent There are two connecting branch pipes fixedly connected between the two ring-shaped water-cooling pipes, and a temperature control switch is fixedly installed on the top of the inner wall of the housing, and the air is exchanged for heat through the coolant in several ring-shaped water-cooling pipes. The air inside the casing is initially cooled, and cold air is generated through the cooling surfaces of the two semiconductor refrigeration chips, and the cold air is circulated inside the casing by a fan, thereby accelerating the discharge of hot air inside the casing, thereby improving the cooling effect and avoiding the cooling effect of the casing. If the temperature inside the body is too high, it will affect the service life of the hydrogen fuel cell stack.

Preferably, several heat dissipation fins are provided with several evenly distributed heat dissipation holes at one end away from the semiconductor refrigeration sheet, and the distance between the heat dissipation surface of the semiconductor refrigeration sheet and the air can be enlarged through the setting of several heat dissipation fins and several heat dissipation holes. Contact area, thereby improving heat dissipation efficiency.

Preferably, four fixing bolts are provided on the surface threads of the two semiconductor cooling sheets, four threaded holes are respectively provided at the joints between the two installation slots and the two semiconductor cooling sheets, and the eight fixing bolts They are threadedly connected with the eight threaded holes respectively, and the two semiconductor refrigeration chips are respectively fixed in the two installation slots through eight fixing bolts respectively threaded with the eight threaded holes, so as to ensure the sealing stability of the overall structure.

Preferably, the insides of the several annular water-cooling tubes are all filled with cooling liquid, and the cooling liquid is used to exchange heat with the air inside the casing, thereby reducing the temperature.

Preferably, the two semiconductor cooling chips and the two fans are electrically connected to an external power supply through a temperature control switch, and the temperature inside the casing is monitored through the temperature control switch.

Preferably, heat dissipation windows are provided on both sides of the top of the casing, and the heat dissipation of the casing is facilitated by the arrangement of the heat dissipation windows.

Preferably, dust-proof nets are fixedly installed inside the two heat dissipation windows, and the dust-proof nets can function to isolate dust.

Compared with the prior art, the beneficial effect of the utility model is: through the cooling liquid in several annular water-cooled tubes, the air is exchanged for heat exchange, and the gas inside the shell is initially cooled, and the cooling effect of the two semiconductor refrigeration chips Cool air is generated on the surface, and the fan circulates the cold air inside the shell, thereby accelerating the discharge of hot air inside the shell to improve the cooling effect and avoid excessive temperature inside the shell that will affect the service life of the hydrogen fuel cell stack.

Description of drawings

Fig. 1 is the perspective view of the utility model;

Fig. 2 is the front sectional view of the utility model;

Fig. 3 is a structural diagram of the utility model water cooling assembly;

Fig. 4 is an enlarged view of part A of the utility model.

In the figure: 1. Shell; 2. Temperature control switch; 3. Water cooling assembly; 31. Ring water cooling tube; 32. Connecting branch pipe; 4. Semiconductor cooling plate; 5. Mounting seat; 6. Fan; 7. Radiating fin ; 8, cooling holes; 9, cooling window; 10, dust screen; 11, placement card slot; 12, fixing bolts;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

Please refer to Figures 1-4. The utility model provides a hydrogen fuel cell stack housing, which includes a housing 1. Both sides of the housing 1 are provided with a seating slot 11, and the insides of the two seating slots 11 are A semiconductor cooling chip 4 is arranged for engagement, and the cooling surfaces of the two semiconductor cooling chips 4 are fixedly provided with a mounting seat 5, and the middle part of the two mounting seats 5 away from the fan 6 is fixedly installed with a fan 6, and the two semiconductor cooling chips The heat dissipation surfaces of 4 are fixedly provided with several evenly distributed heat dissipation fins 7, and the bottom end of the inner wall of the housing 1 is fixedly provided with a water cooling assembly 3, and the water cooling assembly 3 includes several annular water cooling pipes 31 and several connecting branch pipes 32, each There are two connecting branch pipes 32 fixedly connected between two adjacent annular water-cooling pipes 31, and a temperature control switch 2 is fixedly installed on the top of the inner wall of the housing 1, and the air is heated through the coolant in several annular water-cooling pipes 31. Exchange, to carry out preliminary cooling treatment on the gas inside the housing 1, generate cold air through the cooling surfaces of the two semiconductor cooling chips 4, and circulate the cold air inside the housing 1 by the fan 6, thereby accelerating the flow of hot air inside the housing 1 discharge, to improve the cooling effect, to prevent the temperature inside the housing 1 from being too high, thereby affecting the service life of the hydrogen fuel cell stack.

Several radiating fins 7 are provided with several evenly distributed radiating holes 8 at one end far away from the semiconductor refrigerating sheet 4, through the setting of several radiating fins 7 and several radiating holes 8, the contact between the radiating surface of the semiconductor refrigerating sheet 4 and the air can be enlarged. Contact area, thereby improving heat dissipation efficiency.

The surface threads of the two semiconductor refrigerating sheets 4 are provided with four fixing bolts 12, and the joints between the two installation slots 11 and the two semiconductor refrigerating sheets 4 are respectively provided with four threaded holes 13, and the eight fixing bolts 12 are connected with the eight fixing bolts 12 respectively. Threaded connection of four threaded holes 13, through eight fixing bolts 12 and eight threaded holes 13 respectively fixed by threads to fix two semiconductor refrigeration chips 4 in two placement slots 11, to ensure the sealing stability of the overall structure .

The insides of the plurality of annular water-cooling tubes 31 are all filled with cooling liquid, through which the cooling liquid exchanges heat with the air inside the housing 1 , thereby reducing the temperature.

The two semiconductor cooling chips 4 and the two fans 6 are electrically connected to the external power supply through the temperature control switch 2 , and the temperature inside the casing 1 is monitored through the temperature control switch 2 .

Both sides of the top of the casing 1 are provided with heat dissipation windows 9 , and the heat dissipation of the casing 1 is facilitated by the arrangement of the heat dissipation windows 9 .

The insides of the two heat dissipation windows 9 are fixedly provided with dust-proof nets 10, and the setting of the dust-proof nets 10 can play the role of isolating dust.

When the embodiment of the present application is in use: when the internal temperature of the housing 1 rises, heat exchange is performed on the air through the cooling liquid in several annular water-cooled tubes 31 to perform preliminary cooling treatment on the gas inside the housing 1. When the temperature When it continues to rise, the temperature control switch 2 will be triggered to control the two semiconductor cooling chips 4 and the two fans 6 to start working. The cooling surfaces of the two semiconductor cooling chips 4 will generate cold air. Circulate inside the housing 1, and then accelerate the discharge of hot air inside the housing 1 to improve the cooling effect, avoid the temperature inside the housing 1 from being too high and affect the service life of the hydrogen fuel cell stack. Among them, through several cooling fins The setting of the sheet 7 and the plurality of cooling holes 8 can enlarge the contact area between the cooling surface of the semiconductor cooling sheet 4 and the air, thereby improving the cooling efficiency.

Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art can modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the present utility model, any modification, equivalent replacement, improvement, etc. should be included in the protection scope of the present utility model.

Claims (7)

1. A housing for a hydrogen fuel cell stack, comprising a housing (1), characterized in that: both sides of the housing (1) are provided with mounting slots (11), and the two mounting slots The interior of (11) is fitted with a semiconductor cooling chip (4), and the cooling surfaces of the two semiconductor cooling chips (4) are fixed with mounting seats (5), and the two mounting seats (5) are far away from A fan (6) is fixedly installed in the middle of one side of the fan (6), and several evenly distributed cooling fins (7) are fixedly installed on the heat dissipation surfaces of the two semiconductor cooling fins (4). (1) The bottom end of the inner wall is fixed with a water-cooling assembly (3). The water-cooling assembly (3) includes several annular water-cooling pipes (31) and several connecting branch pipes (32). Two connecting branch pipes (32) are fixedly connected between the pipes (31), and a temperature control switch (2) is fixedly installed on the top of the inner wall of the housing (1). 2. A hydrogen fuel cell stack housing according to claim 1, characterized in that: the ends of the plurality of heat dissipation fins (7) away from the semiconductor cooling fins (4) are provided with several evenly distributed Cooling holes (8). 3. A hydrogen fuel cell stack housing according to claim 1, characterized in that: four fixing bolts (12) are provided on the surface threads of the two semiconductor cooling plates (4), and the two Four threaded holes (13) are provided at the joints between the placement card slots (11) and the two semiconductor refrigeration chips (4), and the eight fixing bolts (12) are threadedly connected with the eight threaded holes (13). 4. A hydrogen fuel cell stack housing according to claim 1, characterized in that: the insides of the several annular water-cooled tubes (31) are all filled with cooling liquid. 5. A hydrogen fuel cell stack housing according to claim 1, characterized in that: the two semiconductor cooling chips (4) and the two fans (6) are connected to the external connection through the temperature control switch (2) Electrical power connection. 6. A hydrogen fuel cell stack housing according to claim 1, characterized in that: heat dissipation windows (9) are opened on both sides of the top of the housing (1). 7 . The hydrogen fuel cell stack housing according to claim 6 , characterized in that: dust-proof nets ( 10 ) are fixedly installed inside the two heat dissipation windows ( 9 ).

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