Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F7/00—Vibration-dampers; Shock-absorbers
  • F16F7/14—Vibration-dampers; Shock-absorbers of cable support type, i.e. frictionally-engaged loop-forming cables

Definitions

• the present invention relates to the technical field of new energy vehicles, particularly to a damping structure, a hot box damping system for SOFC vehicle and a new energy vehicle.
• An SOFC Solid Oxide Fuel Cell
• An SOFC Solid Oxide Fuel Cell
• Its direct power generation efficiency can be as high as 60%. It is characterized by environmental friendliness, high energy conversion efficiency and a long life and has broad application prospects in power stations, mobile equipment, households and transport.
• the most representative applications in the transport industry are fuel cell cars and fuel cell buses.
• the application of fuel cells in the transport field face more challenges, such as frequent start and stop and road vibration.
• the power generation system is less affected by external factors and different fixing methods of the fuel cell stack have relatively reliable safety, while in the transport industry, the fuel cell stack and its related components will all undergo varying degrees of vibration and shock. Under these working conditions, it is highly likely that the safety of the cell stack, especially the internal sealing of the cell stack and the sealing between various parts, will be affected.
• reaction fuel gas and reaction air may appear and, in serious cases, misalignment between the end plate and components such as single cells, insulating plates and current collectors, and even crush and breakage of the cathode and anode plates, may be caused.
• end plate and components such as single cells, insulating plates and current collectors, and even crush and breakage of the cathode and anode plates, may be caused.
• cell stacks will also face the impact of vibration and shock in the process of transport.
• CN 107623096 A discloses a fuel cell stack damping device.
• the fuel cell stack damping device comprises a mounting portion and a damping portion. During installation, the fuel cell stack can be installed on the mounting portion.
• the damping portion is arranged under the mounting portion. When the fuel cell stack is subjected to vibration and shock, the damping portion can effectively absorb the vibration energy, thereby effectively preventing leakage of reaction gas and cooling water and other damage to the cell stack.
• the SOFC stack, reformer, burner, heat exchanger and other key components and connecting pipes are sealed by a hot box with a box structure.
• the above patent does not relate to the damping and protection of the entire SOFC hot box system, nor does it mention the protection of the SOFC hot box system under actual road conditions such as acceleration, deceleration and turning of the vehicle.
• This invention provides a damping structure to improve the protection capacity of an SOFC hot box; and the present invention further provides a hot box damping system for SOFC vehicle and a new energy vehicle.
• a first aspect of the invention provides a damping structure, wherein the damping structure comprises an upper mounting base and a support pedestal which support a supported part, and an elastic damping structure arranged between the upper mounting base and the support pedestal, and the elastic damping structure comprises a damping spring which is transversely arranged and has two radial ends fixedly connected to the upper mounting base and the support pedestal respectively.
• the spring can be a cylindrical helical coil spring.
• the radial ends are defined by lines on the cylinder surface that are parallel to the longitudinal axis of the spring.
• the damping spring can comprise a first damping spring and a second damping spring, which are arranged coaxially and in parallel and are in opposite directions of rotation.
• the springs can have right hand and left hand helices respectively.
• the radial top end of the damping spring can be fixedly mounted with an upper support bar that passes through each turn of the damping spring and the upper mounting base can be fixedly mounted on the upper support bar.
• the radial bottom end of the damping spring can be fixedly mounted with a lower support bar that passes through each turn of the spring rings and the lower support bar can be fixedly connected to the support pedestal.
• the upper mounting base can comprise a first vertical portion fixedly connected to the supported part, and a first transverse portion fixedly connected to the upper support bar; and the upper support bar can be fixedly mounted on the first transverse portion by bolts.
• a stiffener plate can be arranged between the first transverse portion and the first vertical portion to support them.
• a second transverse portion on which the lower support bar can be mounted protrudes from the support pedestal, and the lower support bar can be fixedly mounted on the second transverse portion by bolts.
• a second aspect of the invention provides a hot box damping system for an SOFC vehicle, comprising a hot box and a support frame on which the hot box is mounted, wherein damping structures according to the first aspect are arranged between the hot box and the support frame.
• Two sides of the hot box in the width direction can be respectively provided with a first support frame and a second support frame that protrude along the length direction of the hot box, and a plurality of the damping structures that support the hot box can be arranged on the first support frame and the second support frame at intervals.
• damping structures that support the hot box can be arranged on each of the first support frame and the second support frame at intervals.
• a third aspect of the invention provides a new energy vehicle, comprising a car body, an SOFC system arranged inside the car body, and a vehicle hot box damping system arranged between the SOFC and the car body, wherein the vehicle hot box damping system is the hot box damping system for SOFC vehicle according to the second aspect.
• the damping structure provided by the present invention comprises an upper mounting base and a support pedestal which support a supported part, and an elastic damping structure arranged between the upper mounting base and the support pedestal, and the elastic damping structure comprises a damping spring which is transversely arranged and has two radial ends fixedly connected to the upper mounting base and the support pedestal respectively.
• the supported part can be fixedly connected to the upper mounting seat and erected on the support pedestal through the elastic damping structure.
• the elastic damping structure is elastically buffered by the damping spring.
• the damping spring is arranged transversely and provides elastic support for the supported part through compression in the radial direction.
• the transversely arranged damping spring can provide elastic support in the vertical direction and the transverse direction for the supported part and meanwhile can withstand lateral twisting force and other external forces.
• the support structure is stable, has a small inclination angle and small vibration under bumpy working conditions and can achieve effective protection of the supported part.
• Fig. 1 is a schematic view of a damping structure.
• Fig. 2 is an assembly diagram of a damping structure.
• Fig. 3 is an assembly layout of a damping structure.
• the present invention discloses a damping structure to improve the protection capacity of an SOFC hot box; and the present invention further provides a hot box damping system for SOFC vehicle and a new energy vehicle.
• the damping structure comprises an upper mounting base 1 and a support pedestal 3 which support a supported part, and an elastic damping structure 2 arranged between the upper mounting base 1 and the support pedestal 3.
• the elastic damping structure comprises a damping spring 4 which is transversely arranged and has two radial ends fixedly connected to the upper mounting base 1 and the support pedestal 3 respectively.
• the supported part is fixedly connected to the upper mounting seat 1 and erected on the support pedestal 3 through the elastic damping structure 2.
• the elastic damping structure 2 is elastically buffered by the damping spring 4.
• the damping spring 4 is arranged transversely and provides elastic support for the supported part through compression in the radial direction.
• the transversely arranged damping spring 4 can provide elastic support in the vertical direction and the transverse direction for the supported part and meanwhile can withstand lateral twisting force and other external forces.
• the support structure is stable, has a small inclination angle and small vibration under bumpy working conditions and can achieve effective protection of the supported part.
• the damping spring 4 comprises a first damping spring 41 and a second damping spring 42, which are arranged coaxially and in parallel and are in opposite directions of rotation (i.e. right and left handed helices).
• the damping structure adopts a structure of horizontal arrangement of the damping spring 4. Under static working conditions, the supported part is radially supported by the damping spring 4 and under dynamic working conditions, the twisting of the supported part causes the damping spring to tilt in the radial plane.
• the damping spring 4 comprises a first damping spring 41 and a second damping spring 42, which are arranged coaxially and in parallel and are in the same direction of rotation, so that when the supported part swings along the axial direction of the damping spring, the first damping spring 41 and the second damping spring 42 pull each other to limit the inclination angle of the radial plane, further improving the support safety of the supported part.
• the first damping spring 41 and the second damping spring 42 can be arranged symmetrically and balance the swing of the supported part along the axial direction of the damping spring 4.
• the radial top of the damping spring 4 is fixedly mounted with an upper support bar 5 that passes through each of spring rings or turns of the damping spring 4 and the upper mounting base 1 is fixedly mounted on the upper support bar 43.
• the radial bottom of the damping spring 4 is fixedly mounted with a lower support bar 6 that passes through each of the spring rings or turns and the lower support bar 6 is fixedly connected to the support pedestal 3.
• the spring rings or turns of the damping spring 4 need to be connected to the supported part stably to avoid mutual rotation and misalignment between the upper mounting base 1/support pedestal 3 and the damping spring 4.
• an upper support bar 5 and a lower support bar 6 that are inserted into and cooperate with each spring ring of the damping spring 4 are provided.
• Spring perforations corresponding to every spring ring of the damping spring 4 are opened on the upper support bar 5 and the lower support bar 6.
• the upper support bar 5 and the lower support bar 6 are fixedly mounted on two radial ends of the damping spring 4.
• a support platform that fixedly connects the upper mounting base 1 and the support pedestal 3 is provided to further improve the stability of the support structure of the damping structure.
• the upper mounting base 1 comprises a first vertical portion 11 fixedly connected to the supported part, and a first transverse portion 12 fixedly connected to the upper support bar 5; and the upper support bar 5 is fixedly mounted on the first transverse portion 12 by bolts 7.
• the upper mounting basel uses the first vertical portion 11 to connect a side of the supported part to facilitate the installation and reduce the installation difficulty.
• the bottom of the first vertical portion 11 protrudes from the first transverse portion 12, and the top of the first transverse portion 12 can be connected to the upper support bar 5 by bolts to reduce the installation difficulty.
• a stiffener plate 13 is arranged between the first transverse portion 12 and the first vertical portion 11, to support them. As the mounting position of the upper mounting base 1 to the supported part is on a side of the supported part, when a transverse force or twisting force is applied, the force will act on the first transverse portion 12 through the first vertical portion 11 and be transferred to the damping spring 4.
• the stiffener plate 13 arranged in the connecting position of the first transverse portion 11 and the first vertical portion 12 raises the bending resistance of the first transverse portion 11 and the first vertical portion 12 and improves the stability of the support structure of the upper mounting base.
• a second transverse portion 31 on which the lower support bar 6 is mounted, protrudes from the support pedestal 3 and the lower support bar 6 is fixedly mounted on the second transverse portion 31 by bolts.
• the upper mounting base 1 and the support pedestal 3 can be a T-shaped structure or an L-shaped structure.
• the support pedestal 3 is connected to the car frame and the damping spring through the second vertical portion and the second transverse portion 31. The installation method is convenient and the installation difficulty is effectively reduced.
• the present invention further provides a hot box damping system for SOFC vehicle, comprising a hot box and a support frame on which the hot box is mounted.
• the support frame arranged on the hot box damping system for SOFC vehicle is the damping structure 1-1 provided in the foregoing embodiments.
• the beneficial effects of the hot box damping system for SOFC vehicle brought by the damping structure can be referred to the foregoing embodiments.
• Two sides of the hot box in the width direction are respectively provided with a first support frame 1-2 and a second support frame 1-3 that protrude along the length direction of the hot box, and a plurality of the damping structures 1-1 that support the hot box are arranged on the first support frame 1-1 and the second support frame 1-2 at intervals.
• the hot box has a box structure. In order to ensure the stability of its support structure, a plurality of the damping structures 1-1 are arranged to connect the car body.
• the damping support positions of the hot box are arranged on two sides of the hot box in the width direction, and meanwhile, in order to ensure consistency of support structures of a plurality of damping structures 1-1 , the first support frame 1-2 and the second support frame 1-3 protrude along the length direction of the hot box respectively and are located on two sides of the hot box in the width direction, a plurality of damping structures 1-1 are distributed on the first support frame 1-2 and the second support frame 1-3 at intervals, and the damping structures 1-1 are fixedly mounted on two sides of the hot box in the width direction, to facilitate operation of installation tools.
• the plurality of damping structures effectively reduce the installation difficulty.
• the present invention further provides a new energy vehicle, comprising a car body, an SOFC system arranged inside the car body, and a vehicle hot box damping system arranged between the SOFC and the car body.
• the vehicle hot box damping system arranged on the new energy vehicle is the hot box damping system for SOFC vehicle provided in the foregoing embodiment.
• the beneficial effects of the new energy vehicle brought by the hot box damping system for SOFC vehicle can be referred to the foregoing embodiments.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Vibration Prevention Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=69966383

Family Applications (1)

Country Status (2)

Citations (5)

• 2019
  • 2019-09-23 CN CN201921598203.XU patent/CN210245639U/zh active Active
• 2020
  • 2020-09-23 WO PCT/IB2020/058891 patent/WO2021064520A1/en active Application Filing

Patent Citations (5)

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