Overhead fuel cell system and heat dissipation system integrated equipment

Abstract

The invention discloses overhead fuel cell system and heat dissipation system integrated equipment in the field of fuel cells, and the overhead fuel cell system and heat dissipation system integrated equipment comprises fuel cell packs which are fixedly arranged at the top of a train compartment and are arranged in an array along the advancing direction of a train, and surrounding brackets are arranged on the outer rings of the fuel cell packs; the fan set is arranged above the fuel battery pack in a sliding manner through a surrounding bracket; the heat dissipation sets are rotationally arranged on the surrounding support and located on the two sides in the width direction of the train, and the heat dissipation sets and the fan sets are locked at the same time through locking structures; the fuel battery pack has the beneficial effects that the fan set is slidably arranged at the top of the fuel battery pack, the heat dissipation sets are rotatably arranged on the two sides of the fuel battery pack, the internal fuel battery pack can be more conveniently overhauled and maintained, the fan set and the heat dissipation sets are locked through one locking structure, the structure is simple, and use is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fuel cell, in particular to a top-mounted fuel cell system and heat dissipation system integrated device. BACKGROUND

[0002] The fuel cell system is a power generation device that generates electricity by hydrogen and oxygen generating electrochemical reaction to generate water, and generates a large amount of heat at the same time of generating electricity. As a power supply device of a power system, the fuel cell system is the core of the design of various types of transport vehicles, such as trains, commercial vehicles, etc., but since it needs to carry passengers and goods, the optimal way is to place these devices on the roof. However, the roof space is limited and there are many devices (hydrogen bottle, fuel cell, power battery, air conditioner, control unit, etc.), so there are very strict requirements for the size of each module device. In order to meet the aerodynamic resistance, all devices are slender and almost horizontally placed. At present, the design scheme of the top-mounted fuel cell system is to place the devices in front and back along the direction of the vehicle body under the condition of meeting the height limit, for example, the fuel cell system is in front and the heat dissipation system is in back. Such placement not only meets the requirements of vehicle aerodynamic resistance, but also occupies too much roof space, which reduces the space available for other devices, affects the overall functionality and efficiency of the vehicle, and limits the use of larger power fuel cell systems, because larger power fuel cell systems require larger volume heat sinks to ensure the temperature stability of the fuel cell system.

[0003] Then, some schemes for arranging fuel cell systems and heat dissipation systems on the roof of a vehicle appear, but the fuel cell system and the heat dissipation system are fixedly arranged between them, which is difficult to disassemble, causing the problem of difficulty in maintaining the internal fuel cell system.

[0004] Therefore, we propose a top-mounted fuel cell system and heat dissipation system integrated device. SUMMARY

[0005] In view of the above shortcomings of the prior art, the present application provides a top-mounted fuel cell system and heat dissipation system integrated device.

[0006] In order to achieve the above-mentioned application purposes, the technical scheme adopted by the present application is: A top-mounted fuel cell system and heat dissipation system integrated device, comprising: a fuel cell group, fixedly arranged on the top of a train carriage and arrayed along the direction of travel of the train, and a surrounding support arranged outside the fuel cell group; a fan group, slidably arranged above the fuel cell group through the surrounding support to perform air cooling and heat dissipation on the fuel cell group; a heat dissipation group, rotatably arranged on the surrounding support and located on both sides in the width direction of the train, so that the heat dissipation group can be expanded in the width direction of the train; and a locking structure for locking the heat dissipation group and the fan group.

[0007] The fuel cell stack is surrounded and protected by the surrounding support, the fan set is slidably arranged on the surrounding support, and the heat dissipation set is rotationally connected to the width direction of the surrounding support, so that the heat dissipation set can be turned and opened to both sides, and the fan set can also slide outward, which is more convenient for maintaining the fuel cell stack, and a locking structure is used to simultaneously lock the heat dissipation set and the fan set, which is simple in structure and more reasonable in locking.

[0008] Further limitation, the locking structure includes a positioning rod, a plug-in slot, a special-shaped plug-in, a staggered compression spring, a first limiting block, a second limiting block and a third limiting block; The positioning rod is arranged through the top of the surrounding support and has an axial direction that is the forward direction of the train, the plug-in slot is arranged at intervals on the top of the surrounding support and is in communication with the through hole of the positioning rod, the special-shaped plug-in is fixedly arranged on the positioning rod in the plug-in slot, the first limiting block is fixedly arranged on the end of the positioning rod that protrudes from the front end of the surrounding support, the second limiting block is fixedly arranged on the end of the positioning rod that protrudes from the rear end of the surrounding support, the third limiting block is arranged in the plug-in slot near the rear end of the surrounding support and is located between the special-shaped plug-in and the rear end of the surrounding support, and the staggered compression spring is arranged through the positioning rod between the third limiting block and the rear end of the surrounding support. The heat dissipation set is provided with a locking hole corresponding to the special-shaped plug-in, when the positioning rod is not stressed, the staggered compression spring is in a pre-tightening state, and the special-shaped plug-in and the locking hole are in a staggered state in the vertical direction, at this time, the first limiting block has a gap with the front end surface of the surrounding support; When the positioning rod is stressed and the first limiting block is attached to the front end surface of the surrounding support, the staggered compression spring is in a compressed state, and the special-shaped plug-in and the locking hole are aligned in the vertical direction; When the special-shaped plug-in passes through the locking hole and is in a locked state, the end of the special-shaped plug-in abuts against the outer surface of the fan set.

[0009] By setting the positioning rod in the surrounding support, and opening the plug-in slot on the surrounding support, the special-shaped plug is fixed on the positioning rod in the plug-in slot. When we need to lock the heat dissipation group and the fan group, we push the positioning rod from the front end to the rear end of the surrounding support. At this time, the staggered compression spring will be compressed, and the positioning rod will move the special-shaped plug in the plug-in slot until the first limiting block contacts the surrounding support. At this time, the special-shaped plug is vertically aligned with the locking hole on the heat dissipation group. At this time, rotate the positioning rod to make the special-shaped plug rotate around the circumference of the positioning rod, from bottom to top through the locking hole, and the end of the special-shaped plug contacts the side of the fan group. At this time, release the positioning rod, and the staggered compression spring rebounds to increase the friction between the special-shaped plug and the locking hole, which locks the special-shaped plug, preventing the special-shaped plug from falling and unlocking during the train journey. When we need to unlock, we also push the positioning rod to the rear end of the surrounding support to reduce the friction between the special-shaped plug and the locking hole. At this time, rotate the positioning rod to make the special-shaped plug disengage from the locking hole, and then release the positioning rod to complete the unlocking. The structure is simple and easy to operate.

[0010] Further limitation, the surrounding support includes a rectangular top frame, a rectangular bottom frame, a diagonal rod and a reinforcing rod; The length of the rectangular top frame and the rectangular bottom frame is the same, and the width of the rectangular top frame is less than the width of the rectangular bottom frame. The diagonal rod is fixedly connected to the corners of the rectangular top frame and the rectangular bottom frame. The reinforcing rod is fixedly connected between the two long rods of the rectangular top frame, between the long rods of the rectangular top frame and the rectangular bottom frame, and between the wide rods of the rectangular top frame and the rectangular bottom frame. The plug-in slot is opened in the long rod of the rectangular top frame, and the positioning rod is arranged in the long rod of the rectangular top frame along the long rod of the rectangular top frame.

[0011] The surrounding support as a fuel cell protection device is used as a mounting component of the locking structure, and the locking structure is mounted on the surrounding support. The structure is compact and reasonable. The reinforcing rod is provided to ensure the strength of the surrounding support. The surrounding support is arranged in a trapezoidal shape, which can make the heat dissipation groups on both sides more easily affected by the wind, and improve the heat dissipation effect of the heat dissipation groups.

[0012] Further limitation, the fan group includes a fan, two sliding plates, a sliding bar and a sliding groove. The fan is fixedly arranged on the sliding plate, and the sliding plate is provided with a through hole through which the wind blown by the fan passes. The two sliding plates are arranged on the rectangular top frame in the width direction of the rectangular top frame. The sliding bar is fixedly arranged on the wide side bottom surface of the sliding plate. The sliding groove is fixedly arranged on the wide side of the rectangular top frame. The sliding plate is slidably connected to the wide side of the rectangular top frame through the cooperation of the sliding bar and the sliding groove. When the special-shaped plug is in the locked state, the end of the special-shaped plug abuts against the outer side surface of the sliding plate.

[0013] The fan is installed on the two sliding plates, the two sliding plates can slide relative to or away from each other through the sliding strip and the sliding groove, when the two sliding plates slide away from each other, the fuel cell group is exposed, the inside of the fuel cell group is convenient to maintain and replace, when the two sliding plates slide relative to each other until contact, the two sliding plates shield the fuel cell group, the two sliding plates are prevented from sliding outward by the special-shaped pin in the state of shielding and protecting, the structure is simple, and the use is convenient.

[0014] Further limitation, the heat dissipation group includes a finned heat sink and a hinge; the surrounding support further includes a bottom plate, the rectangular bottom frame is fixedly arranged on the bottom plate, both ends of the bottom plate extend out of the rectangular bottom frame and are fixed on the top of the train carriage through bolts, the bottom end of the finned heat sink is rotatably connected to the bottom plate through the hinge, and the finned heat sink is located in the direction of the long side of the rectangular bottom frame, the top of the finned heat sink extends outwardly and has a locking plate, and the locking hole is arranged on the locking plate, when the special-shaped pin passes through the locking hole and is in the locking state, the two ends of the finned heat sink are in contact with the inclined rods.

[0015] The bottom end of the finned heat sink is hingedly connected to the bottom plate of the surrounding support, so that the finned heat sink can rotate around the hinge at the bottom end, thereby achieving the contact and separation with the surrounding support, and the locking is achieved by the special-shaped pin in the contact state.

[0016] Further limitation, the heat dissipation group further includes a limiting connecting rod, the limiting connecting rod includes two support rods rotatably connected at the first end and the tail end, the two ends of the limiting connecting rod at the two ends of the finned heat sink are rotatably connected to the inclined rods and the inner end face of the finned heat sink respectively, and the two ends of the limiting connecting rod at the middle of the finned heat sink are rotatably connected to the reinforcing rods and the inner end face of the finned heat sink respectively.

[0017] By arranging the limiting connecting rod, and the limiting connecting rod including two support rods rotatably connected at the first end and the tail end, the finned heat sink can be limited when rotating outward, preventing the finned heat sink from turning outward too much, preventing the gravity of the finned heat sink from damaging the hinge, and prolonging the service life, and when turning inward, the two support rods are folded, achieving the folding of the connecting rod, and not affecting the locking.

[0018] Further limitation, the special-shaped pin includes a straight section and a curved section, the curved section is in the shape of a quarter of a circle, the inner end of the straight section is fixedly connected to the positioning rod, and one end of the curved section is fixedly connected to the outer end of the straight section; in this way, compared with the straight pin, the special-shaped pin is more difficult to rotate by itself, and is more conducive to the stability of the locking.

[0019] Further limitation, the surrounding support further includes a front panel and a rear panel, the front panel is fixedly arranged at the front end of the rectangular top frame and the rectangular bottom frame, and the rear panel is fixedly arranged at the rear end of the rectangular top frame and the rectangular bottom frame; by arranging the front panel and the rear panel, the dustproof effect on the fuel cell group can be improved.

[0020] The beneficial effects of this invention are as follows: by sliding the fan unit on the top of the fuel cell stack and rotating the heat dissipation unit on both sides, it is easier to inspect and maintain the internal fuel cell stack. Furthermore, the fan unit and heat dissipation unit are locked by a locking structure, which makes the structure simple and easy to use. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the heat dissipation assembly in its deployed state from a rear-view perspective, according to the present invention. Figure 2 This is a front view of the heat dissipation assembly of the present invention in its unfolded state; Figure 3 This is a three-dimensional structural schematic diagram of a portion of the wind turbine unit of the present invention in its deployed state; Figure 4 This is a simplified structural diagram of the locking mechanism in an unloaded state. Figure 5 This is a simplified structural diagram of the locking structure in the pre-locking state under stress. Figure 6 This is a schematic diagram of the irregularly shaped pin.

[0022] The symbols for each component are as follows: 1. Fuel cell stack; 2. Enclosure support; 21. Rectangular top frame; 22. Rectangular bottom frame; 23. Diagonal tie rod; 24. Reinforcing rod; 25. Front panel; 251. Air inlet; 26. Rear panel; 261. Tail exhaust port; 27. Base plate; 3. Fan assembly; 31. Fan; 32. Slide plate; 33. Slide bar; 34. Slide groove; 4. Heat dissipation assembly; 41. Finned heat sink; 411. Locking plate; 412. Locking hole; 42. Hinge; 43. Limiting link; 5. Locking structure; 51. Positioning rod; 52. Pin slot; 53. Irregular pin; 53. Straight section; 531. Bending section; 532. Misaligned compression spring; 54. First limiting block; 55. Second limiting block; 56. Third limiting block; 57. Detailed Implementation

[0023] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0024] Example: like Figures 1-6 As shown, a top-mounted fuel cell system and heat dissipation system integrated device includes a fuel cell stack 1, a casing support 2, a fan unit 3, a heat dissipation unit 4, and a locking structure 5. The fuel cell group 1 is fixed on the top of the train compartment and arranged along the running direction of the train, and the outer ring of the fuel cell group 1 is provided with a surrounding support 2; The surrounding support 2 comprises a rectangular top frame 21, a rectangular bottom frame 22, a diagonal pull rod 23, a reinforcing rod 24, a front panel 25, a rear panel 26 and a bottom plate 27; the length of the rectangular top frame 21 and the rectangular bottom frame 22 is the same, and the width of the rectangular top frame 21 is smaller than the width of the rectangular bottom frame 22; the diagonal pull rod 23 is fixedly connected at the corners of the rectangular top frame 21 and the rectangular bottom frame 22; the reinforcing rod 24 is fixedly connected between the two long rods of the rectangular top frame 21, between the long rod of the rectangular top frame 21 and the long rod of the rectangular bottom frame 22, and between the wide rod of the rectangular top frame 21 and the wide rod of the rectangular bottom frame 22; the pin accommodating groove 52 is formed on the long rod of the rectangular top frame 21, and the positioning rod 51 is arranged in the long rod of the rectangular top frame 21 along the long rod of the rectangular top frame 21; the front panel 25 is fixedly arranged at the front end of the rectangular top frame 21 and the rectangular bottom frame 22, and the rear panel 26 is fixedly arranged at the rear end of the rectangular top frame 21 and the rectangular bottom frame 22; The fan group 3 is used for air cooling and heat dissipation of the fuel cell group 1; the fan group 3 comprises a fan 31, two sliding plates 32, a sliding strip 33 and a sliding groove 34; the fan 31 is fixedly arranged on the sliding plate 32, the sliding plate 32 is provided with a through hole through which the air blown out by the fan 31 passes, the two sliding plates 32 are arranged on the rectangular top frame 21 along the width direction of the rectangular top frame 21, the sliding strip 33 is fixedly arranged on the wide side bottom surface of the two sides of the sliding plate 32, and the sliding groove 34 is fixedly arranged on the wide side of the rectangular top frame 21; the sliding plate 32 is slidably connected on the wide side of the rectangular top frame 21 through cooperation of the sliding strip 33 and the sliding groove 34; The heat dissipation group 4 is locked by the locking structure 5 to simultaneously lock the heat dissipation group 4 and the fan group 3; the heat dissipation group 4 comprises a finned radiator 41, a hinge 42 and a limiting connecting rod 43; the rectangular bottom frame 22 is fixedly arranged on the bottom plate 27, the two ends of the bottom plate 27 protrude out of the rectangular bottom frame 22 and are fixedly arranged on the top of the train compartment through bolts, the bottom end of the finned radiator 41 is rotatably connected to the bottom plate 27 through the hinge 42, and the finned radiator 41 is located in the direction of the long side of the rectangular bottom frame 22; the top of the finned radiator 41 protrudes inwardly and is provided with a locking plate 411, a locking hole 412 is formed on the locking plate 411, and the limiting connecting rod 43 comprises two branch rods rotatably connected at the first end and the second end; the two ends of the limiting connecting rod 43 at the two ends of the finned radiator 41 are rotatably connected to the diagonal pull rod 23 and the inner end surface of the finned radiator 41, respectively; the two ends of the limiting connecting rod 43 at the middle of the finned radiator 41 are rotatably connected to the reinforcing rod 24 and the inner end surface of the finned radiator 41, respectively; The locking structure 5 is used for locking the heat dissipation group 4 and the fan group 3. The locking structure 5 comprises a positioning rod 51, a latch accommodating groove 52, a special-shaped latch 53, a staggered compression spring 54, a first limiting block 55, a second limiting block 56 and a third limiting block 57. The positioning rod 51 is arranged through the top of the surrounding support 2 and axially arranged in the advancing direction of the train. The latch accommodating groove 52 is arranged on the top of the surrounding support 2 in a spaced manner and is in communication with the through hole of the positioning rod 51. The special-shaped latch 53 is fixedly arranged on the positioning rod 51 in the latch accommodating groove 52. The special-shaped latch 53 comprises a straight section 531 and a curved section 532. The curved section 532 is in the shape of a quarter of a circular arc. The inner side end of the straight section 531 is fixedly connected to the positioning rod 51. One end of the curved section 532 is fixedly connected to the outer side end of the straight section 531. The first limiting block 55 is fixedly arranged at the end of the positioning rod 51 which is arranged through the front end of the surrounding support 2. The second limiting block 56 is fixedly arranged at the end of the positioning rod 51 which is arranged through the rear end of the surrounding support 2. The third limiting block 57 is arranged in the latch accommodating groove 52 close to the rear end of the surrounding support 2 and is located between the special-shaped latch 53 and the rear end of the surrounding support 2. The staggered compression spring 54 is arranged on the positioning rod 51 between the third limiting block 57 and the rear end of the surrounding support 2. When the positioning rod 51 is not subjected to force, the staggered compression spring 54 is in a pre-tightening state, and the special-shaped latch 53 is staggered with the locking hole 412 in the vertical direction. At this time, the first limiting block 55 has a gap with the front panel 25 of the surrounding support 2. When the positioning rod 51 is subjected to force and the first limiting block 55 is attached to the front panel 25 of the surrounding support 2, the staggered compression spring 54 is in a compressed state, and the special-shaped latch 53 is aligned with the locking hole 412 in the vertical direction. When the special-shaped latch 53 passes through the locking hole 412 and is in a locked state, the end of the special-shaped latch 53 abuts against the outer side surface of the sliding plate 32, and the finned heat sink 41 is attached to both ends of the inclined pull rod 23.

[0025] The fuel cell group 1 is surrounded and protected by the surrounding support 2, the fan group 3 is slidably arranged on the surrounding support 2, and the heat dissipation group 4 is rotatably connected to the surrounding support 2 in the width direction, so that the heat dissipation group 4 can be turned to open to both sides, and the fan group 3 can also slide outward, which is more convenient for the maintenance of the fuel cell group 1, and the heat dissipation group 4 and the fan group 3 are locked by a locking structure 5 at the same time, which is simple in structure and more reasonable in locking; the positioning rod 51 is arranged in the surrounding support 2, the plug-in groove 52 is formed in the surrounding support 2, the special-shaped plug-in pin 53 is fixed on the positioning rod 51 in the plug-in groove 52, when the heat dissipation group 4 and the fan group 3 need to be locked, the positioning rod 51 is pushed from the front end to the rear end of the surrounding support 2, at this time, the misaligned compression spring 54 is compressed, the positioning rod 51 drives the special-shaped plug-in pin 53 to move in the plug-in groove 52, until the first limiting block 55 contacts the surrounding support 2, at this time, the special-shaped plug-in pin 53 is aligned with the locking hole 412 on the heat dissipation group 4 in the vertical direction, at this time, the positioning rod 51 is rotated, so that the special-shaped plug-in pin 53 rotates around the positioning rod 51, passes through the locking hole 412 from bottom to top, and the end of the special-shaped plug-in pin 53 contacts the side of the fan group 3, at this time, the positioning rod 51 is released, the misaligned compression spring 54 rebounds, so that the friction between the special-shaped plug-in pin 53 and the locking hole 412 increases, which plays a locking function on the special-shaped plug-in pin 53, prevents the special-shaped plug-in pin 53 from falling and unlocking during the train running, and when unlocking is needed, the positioning rod 51 is pushed to the rear end of the surrounding support 2, so that the friction between the special-shaped plug-in pin 53 and the locking hole 412 decreases, at this time, the positioning rod 51 is rotated to make the special-shaped plug-in pin 53 separate from the locking hole 412, and then the positioning rod 51 is released to complete the unlocking, which is simple in structure and convenient to operate; the surrounding support 2 serving as a protection member of the fuel cell group 1 is used as a mounting component of the locking structure 5, and the locking structure 5 is mounted on the surrounding support 2, which is compact and reasonable in structure, the strength of the surrounding support 2 is ensured by arranging the reinforcing rod 24, and the surrounding support 2 is arranged in a trapezoidal table shape, so that the heat dissipation groups 4 on both sides are more easily affected by wind, and the heat dissipation effect of the heat dissipation groups 4 is improved; two sliding plates 32 are arranged, the fan 31 is mounted on the sliding plate 32, the sliding bar 33 and the sliding groove 34 are arranged to make the two sliding plates 32 slide relatively or away from each other, when the two sliding plates 32 slide away from each other, the fuel cell group 1 is exposed outside, which is convenient for the maintenance and replacement of the fuel cell group 1, when the two sliding plates 32 slide relatively until contacting, the two sliding plates 32 shield and protect the fuel cell group 1, the two sliding plates 32 are prevented from sliding outward by the special-shaped plug-in pin 53 in the shielding and protecting state, which is simple in structure and convenient to use; the bottom end of the fin heat radiator 41 is hinged to the bottom plate 27 of the surrounding support 2, so that the fin heat radiator 41 can rotate around the hinge 42 at the bottom end, thereby realizing the adhesion and separation with the surrounding support 2, and the adhesion is locked by the special-shaped plug-in pin 53;By setting the limiting connecting rod 43, and the limiting connecting rod 43 includes two head-to-tail rotary connecting supporting rods, the fin heat sink 41 can be limited when rotating outward, prevent the fin heat sink 41 from turning over too much, prevent the gravity of the fin heat sink 41 from damaging the hinge 42, and prolong the service life. When turning inward, the two supporting rods are folded, the folding of the connecting rod is not affected, and the locking is not affected. By setting the special-shaped bolt 53, compared with the straight bolt, the difficulty of self-rotation is greater, and the stability of the locking is more beneficial. By setting the front panel 25 and the rear panel 26, the dustproof effect of the fuel cell stack 1 can be improved.

Claims

1. A top-mounted fuel cell system and heat dissipation system integrated device, characterized by, The application relates to a fuel cell group (1) fixedly arranged on the top of a train compartment and arrayed along the running direction of the train, wherein an outer ring of the fuel cell group (1) is provided with a surrounding support (2); a fan group (3) is slidably arranged above the fuel cell group (1) through the surrounding support (2) and is used for air cooling and heat dissipation of the fuel cell group (1); a heat dissipation group (4) is rotatably arranged on the surrounding support (2) and located on both sides in the train width direction, so that the heat dissipation group (4) can be unfolded in the train width direction; and a locking structure (5) is used for locking the heat dissipation group (4) and the fan group (3). The locking structure (5) comprises a positioning rod (51), a bolt accommodating groove (52), a special-shaped bolt (53), a staggered compression spring (54), a first limiting block (55), a second limiting block (56) and a third limiting block (57); the positioning rod (51) is arranged on the top of the surrounding support (2) and is axially arranged in the running direction of the train; the bolt accommodating groove (52) is arranged on the top of the surrounding support (2) and is in communication with the penetrating hole of the positioning rod (51); the special-shaped bolt (53) is fixedly arranged on the positioning rod (51) in the bolt accommodating groove (52); the first limiting block (55) is fixedly arranged on the end of the positioning rod (51) penetrating out of the front end of the surrounding support (2); the second limiting block (56) is fixedly arranged on the end of the positioning rod (51) penetrating out of the rear end of the surrounding support (2); the third limiting block (57) is arranged in the bolt accommodating groove (52) close to the rear end of the surrounding support (2) and is located between the special-shaped bolt (53) and the rear end of the surrounding support (2); and the staggered compression spring (54) is arranged on the positioning rod (51) between the third limiting block (57) and the rear end of the surrounding support (2). A locking hole (412) is arranged on the heat dissipation group (4) corresponding to the special-shaped bolt (53); when the positioning rod (51) is not stressed, the staggered compression spring (54) is in a pre-tightening state, the special-shaped bolt (53) is staggered with the locking hole (412) in the vertical direction, and a gap is formed between the first limiting block (55) and the front end surface of the surrounding support (2); when the positioning rod (51) is stressed and the first limiting block (55) is attached to the front end surface of the surrounding support (2), the staggered compression spring (54) is in a compressed state, and the special-shaped bolt (53) is aligned with the locking hole (412) in the vertical direction; when the special-shaped bolt (53) is locked by penetrating through the locking hole (412), the end of the special-shaped bolt (53) abuts against the outer side surface of the fan group (3).

2. The rooftop fuel cell system and heat dissipation system integrated apparatus according to claim 1, characterized by, The surrounding support (2) comprises a rectangular top frame (21), a rectangular bottom frame (22), a diagonal pull rod (23) and a reinforcing rod (24). ​ ​ ​ ​ 3. The roof-mounted fuel cell system and heat dissipation system integrated apparatus according to claim 2, characterized by ​ The length of the rectangular top frame (21) and the rectangular bottom frame (22) is the same, and the width of the rectangular top frame (21) is smaller than the width of the rectangular bottom frame (22), the diagonal pull rod (23) is fixedly connected at the corner of the rectangular top frame (21) and the rectangular bottom frame (22), the reinforcing rod (24) is fixedly connected between the two long rods of the rectangular top frame (21), between the long rod of the rectangular top frame (21) and the long rod of the rectangular bottom frame (22), between the wide rod of the rectangular top frame (21) and the wide rod of the rectangular bottom frame (22), the bolt containing groove (52) is arranged on the long rod of the rectangular top frame (21), and the positioning rod (51) is arranged in the long rod of the rectangular top frame (21) along the long rod of the rectangular top frame (21).

4. The roof-mounted fuel cell system and heat dissipation system integrated apparatus according to claim 3, characterized by The fan group (3) comprises a fan (31), two sliding plates (32), a sliding bar (33) and a sliding groove (34); the fan (31) is fixedly arranged on the sliding plate (32), the sliding plate (32) is provided with a through hole through which the wind blown by the fan (31) passes, and the two sliding plates (32) are arranged on the rectangular top frame (21) in the width direction of the rectangular top frame (21); the sliding bar (33) is fixedly arranged on the wide bottom surface on both sides of the sliding plate (32), the sliding groove (34) is fixedly arranged on the wide side of the rectangular top frame (21), and the sliding plate (32) is slidably connected to the wide side of the rectangular top frame (21) through cooperation of the sliding bar (33) and the sliding groove (34). When the special-shaped bolt (53) passes through the locking hole (412) and is in the locking state, the end of the special-shaped bolt (53) abuts against the outer side of the sliding plate (32).

5. The rooftop fuel cell system and heat rejection system integrated apparatus according to claim 4, wherein The heat dissipation group (4) comprises a finned heat sink (41) and a hinge (42); the surrounding support (2) further comprises a bottom plate (27), the rectangular bottom frame (22) is fixedly arranged on the bottom plate (27), both ends of the bottom plate (27) protrude from the rectangular bottom frame (22) and are fixed to the top of the train carriage through bolts, the bottom end of the finned heat sink (41) is rotatably connected to the bottom plate (27) through the hinge (42), and the finned heat sink (41) is located in the direction of the long side of the rectangular bottom frame (22); the top of the finned heat sink (41) protrudes inwardly and is provided with a locking plate (411), the locking hole (412) is arranged on the locking plate (411), and when the special-shaped bolt (53) passes through the locking hole (412) and is in the locking state, the finned heat sink (41) is in contact with the two ends of the diagonal pull rod (23).

6. The rooftop fuel cell system and heat dissipation system integrated apparatus according to claim 5, wherein The heat dissipation group (4) further comprises a limiting connecting rod (43), the limiting connecting rod (43) comprises two branch rods which are rotationally connected at the head and tail, the two ends of the limiting connecting rod (43) at the two ends of the fin heat radiator (41) are respectively rotationally connected on the inclined pull rod (23) and the inner end face of the fin heat radiator (41), and the two ends of the limiting connecting rod (43) at the middle part of the fin heat radiator (41) are respectively rotationally connected on the reinforcing rod (24) and the inner end face of the fin heat radiator (41).

7. The integrated top-mounted fuel cell system and heat dissipation system according to claim 2, wherein The special-shaped bolt (53) comprises a straight section (531) and a curved section (532), the curved section (532) is in the shape of a quarter of a circle, and the inner side end of the straight section (531) is fixedly connected on the positioning rod (51), and one end of the curved section (532) is fixedly connected on the outer side end of the straight section (531).

8. The integrated top-mounted fuel cell system and heat dissipation system according to claim 5, wherein The surrounding support (2) further comprises a front panel (25) and a rear panel (26), the front panel (25) is fixedly arranged at the front end of the rectangular top frame (21) and the rectangular bottom frame (22), and the rear panel (26) is fixedly arranged at the rear end of the rectangular top frame (21) and the rectangular bottom frame (22).

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