CN113098237B - Power converter and electric railway vehicle equipped with power converter - Google Patents
Power converter and electric railway vehicle equipped with power converter Download PDFInfo
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- CN113098237B CN113098237B CN202110516071.7A CN202110516071A CN113098237B CN 113098237 B CN113098237 B CN 113098237B CN 202110516071 A CN202110516071 A CN 202110516071A CN 113098237 B CN113098237 B CN 113098237B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0221—Locks; Latches
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Microelectronics & Electronic Packaging (AREA)
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- Power Engineering (AREA)
- Inverter Devices (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a power conversion device and an electric railway vehicle carrying the power conversion device, comprising a vehicle, the power conversion device and a heat dissipation air hole, wherein the power conversion device is fixedly arranged on a bottom plate of the vehicle, and the heat dissipation air hole is arranged on the power conversion device; according to the invention, the structure of the existing power conversion device is improved, and the improved power conversion device can effectively prevent splashed stones from entering the shell to damage electrical elements in the shell in the use process, so that the service life of the power conversion device can be prolonged in practical application, and the improved power conversion device has higher practical value.
Description
Technical Field
The present invention relates to the field of electrical equipment technology, and more particularly to a power converter and an electric railway vehicle equipped with the power converter.
Background
Under the floor of a railway vehicle, there are provided a vehicle drive control device that controls electric power supplied to a drive motor, and a power conversion device such as an auxiliary power supply device that controls electric power supplied to onboard electrical equipment such as an air conditioner. These power converters are provided with a semiconductor element for converting a current to convert a direct current/an alternating current, and a heat generating component such as a reactor for smoothing the current, and therefore, a blower for supplying cooling air to these components is provided. The electric blower for cooling the power converter and the circuit elements is accommodated in the casing, and the air inlet of the electric blower is arranged on the side wall of the casing, so that broken stones around the circuit can enter the casing, and the equipment in the casing is damaged. In order to solve the above problems, the present invention proposes a power converter and an electric railway vehicle mounted with the power converter.
Disclosure of Invention
(1) Technical problem to be solved
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a power converter and an electric railway vehicle equipped with the power converter, which are adapted to the actual needs and overcome the disadvantages of the prior art.
(2) Technical scheme
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
the power conversion device is fixedly arranged on a bottom plate of the vehicle, the power conversion device is provided with a heat dissipation air hole, a protection mechanism is arranged outside the power conversion device, and the protection mechanism is used for plugging the heat dissipation air hole and preventing splashed stones from entering the power conversion device to cause damage to combined equipment of a semiconductor element, a reactor and a blower in the power conversion device.
Further, protection machanism is including filtering protective frame and side position connecting plate, institute be provided with the filtration pore on the filtering protective frame, and filter two sliding blocks of symmetry fixedly connected with on the both sides wall of protective frame, a sliding block slides and sets up No. one at the spacing inslot, and a spacing groove sets up on power conversion device, No. two sliding blocks of lateral wall fixedly connected with of a sliding block, and No. two sliding blocks slide and set up No. two spacing inslots, No. two spacing grooves set up on power conversion device, and No. two spacing grooves and a spacing groove are linked together.
Furthermore, the protection mechanism is provided with a fixing mechanism, and the fixing mechanism is used for fixing the protection mechanism on the power conversion device, so that the protection mechanism is prevented from loosening and falling in the process of moving the vehicle.
Further, fixed establishment includes fixed orifices and fixed plate, the fixed orifices is seted up on power conversion equipment's lateral wall, and the side position matching of fixed orifices is provided with the fixed plate, the fixed setting of fixed plate is on the movable plate, and the movable plate slides and sets up in U type carriage, the fixed setting of U type carriage is on filtering the lateral wall of protection frame, the one end rotation that the fixed plate was kept away from to the movable plate is provided with the axis of rotation, and fixedly connected with threaded rod in the axis of rotation, threaded rod screw thread grafting is in the threaded hole, and the screw hole is seted up on U type carriage, the free end fixedly connected with of threaded rod adjusts the carousel, the one end fixedly connected with who the movable plate was kept away from to the fixed plate prevents the fixture block, prevents the setting of fixture block, can ensure that the fixed plate can be smooth entering into the fixed orifices.
Furthermore, the upper plate of the filtering and protecting frame is provided with a mounting hole, the mounting hole is movably inserted with a filtering and protecting plate, the filtering and protecting plate is provided with a filtering hole, the filtering and protecting plate is arranged, smooth passing of flowing wind can be guaranteed, and meanwhile splashing stones can be further prevented from entering the power conversion device.
Further, be provided with conflict locking mechanical system on the filtering protection plate, conflict locking mechanical system's setting is fixed on filtering the protecting plate through the conflict effect to ensure that filtering the protecting plate and have the effect of protection all the time.
Furthermore, the interference locking mechanism comprises a moving through hole and a first vertical plate, the moving through hole is arranged on the U-shaped supporting frame, a first vertical plate is movably arranged in the moving through hole, the lower end of the first vertical plate is fixedly connected on the moving plate, and the upper end of the first vertical plate is fixedly connected with a transverse plate which is movably inserted on the second vertical plate, and the outside of the transverse plate is wound and connected with a supporting spring, the two ends of the supporting spring are respectively and fixedly connected on the side wall of the transverse plate and the side wall of the second vertical plate, the second vertical plate is movably arranged in a moving groove, the moving groove is arranged on a connecting plate, the connecting plate is fixedly arranged on the filtering protection plate, the side wall of the second vertical plate is fixedly connected with a plurality of locking rods, a plurality of locking holes are formed in the locking rods, and the locking holes are matched with the locking rods in number.
Further, be provided with pressfitting locking mechanical system on filtering the protection frame, pressfitting locking mechanical system's setting is contradicted the effect through the pressfitting, further plays fixed effect to filtering the guard plate.
Furthermore, the pressing locking mechanism comprises a pressing plate and a spiral rod, the pressing plate is arranged above the filtering protection plate, the pressing plate is fixedly sleeved outside the spiral rod, an inner spiral pipe is sleeved outside the spiral rod in a threaded manner, an L-shaped fixing rod is fixedly connected to the outer side wall of the inner spiral pipe, the free end of the L-shaped fixing rod is fixedly connected to the outer side wall of the filtering protection frame, the spiral rod is movably inserted on the rotating column, a movable sleeve ring is sleeved outside the rotating column and fixedly arranged on the outer side wall of the filtering protection frame, a plurality of supporting rods are fixedly connected to the lower end face of the rotating column, the lower ends of the supporting rods are fixedly connected to the upper end face of the winding shaft, a guide assembly is fixedly connected to the upper end face of the winding shaft, the upper end of the guide assembly is fixedly connected to the lower end of the spiral rod, and one end of a traction steel rope is wound on the circumference of the winding shaft, and the other end of the traction steel rope is fixedly connected to the side wall of the first vertical plate.
Further, the guide assembly comprises a guide rod, a guide cylinder and a guide spring, the guide rod is movably inserted into the guide cylinder, the guide spring is wound and connected outside the guide rod, one end of the guide spring is fixedly connected to the side wall of the guide rod, and the other end of the guide spring is fixedly connected to the outer side wall of the guide cylinder.
(3) Has the advantages that:
1. according to the invention, the structure of the existing power conversion device is improved, and the improved power conversion device can effectively prevent splashed stones from entering the shell to damage electrical elements in the shell in the use process, so that the service life of the power conversion device can be prolonged in practical application, and the improved power conversion device has higher practical value.
2. The protection mechanism is additionally arranged and used for plugging the heat dissipation air holes, so that splashed stones can be effectively prevented from entering the power conversion device, the phenomenon that the splashed stones damage electrical elements in the power conversion device is avoided, and the service life of equipment is prolonged.
3. The fixing mechanism is additionally arranged and used for fixing the protection mechanism on the power conversion device, the fixing mechanism is reasonable in structural design, time-saving and labor-saving effects can be achieved in the adjusting process, meanwhile, the fixing mechanism is convenient to disassemble and assemble, the protection mechanism can be conveniently and efficiently disassembled and assembled, and therefore when the protection mechanism is damaged, the replacing process is guaranteed.
4. According to the invention, the filtering protection plate is additionally arranged on the protection mechanism and is used for further preventing splashed stones from entering the power conversion device, in order to realize a better protection effect, the sizes of the filter holes arranged in the filtering protection frame and the filtering protection plate are set to be different during design, so that the filtering of the stones with different particle sizes can be realized through the filtering protection frame and the filtering protection plate.
5. According to the invention, the filter protection plate is provided with the conflict locking mechanism, the filter protection plate is stably fixed in the mounting hole through the conflict locking function, so that the function of filtering splashed stones is achieved, the structural design of the equipment is reasonable, the fixing process of the conflict locking mechanism on the filter protection plate can be realized in the fixing process of the fixing mechanism, the operation difficulty of the equipment is reduced, and the high efficiency of the equipment is ensured.
6. The filter protection plate fixing device is additionally provided with the pressing locking mechanism, the filter protection plate can be further fixed through the pressing effect, the structural design of the device is reasonable, and in the actual working process, the pressing locking mechanism can be driven to complete the pressing locking effect in the process of completing the pressing locking by the pressing locking mechanism, so that the high efficiency of the device can be ensured.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a power converter and an electric railway vehicle equipped with the power converter according to the present invention;
FIG. 2 is a schematic view of a power converter according to the present invention and a partial configuration of an electric railway vehicle equipped with the power converter in FIG. 1;
FIG. 3 is a schematic view of a power converter according to the present invention and a partial configuration of an electric railway vehicle equipped with the power converter in FIG. 2;
FIG. 4 is a schematic view of a power converter according to the present invention and a further enlarged partial configuration of an electric railway vehicle equipped with the power converter in FIG. 2;
FIG. 5 is a schematic view of a power converter according to the present invention and an electric railway vehicle equipped with the power converter, in which the power converter is partially enlarged in FIG. 4;
FIG. 6 is an enlarged schematic view of the power converter of the present invention and an electric railway vehicle equipped with the power converter of FIG. 5;
FIG. 7 is a partially enlarged schematic configuration view of a power converter and an electric railway vehicle equipped with the power converter of the present invention shown in FIG. 5;
FIG. 8 is an enlarged schematic view of a power converter according to the present invention and an electric railway vehicle equipped with the power converter, in which the structure B in FIG. 7 is shown;
fig. 9 is an enlarged schematic view of the structure C in fig. 7 of the power converter and the electric railway vehicle on which the power converter is mounted.
The reference numbers are as follows:
the vehicle comprises a vehicle 1, a power conversion device 2, a heat dissipation air hole 3, a protection mechanism 4, a filtering protection frame 41, a side position connecting plate 42, a first sliding block 43, a first limit groove 44, a second sliding block 45, a second limit groove 46, a fixing mechanism 5, a fixing hole 51, a fixing plate 52, a moving plate 53, a U-shaped support frame 54, a rotating shaft 55, a threaded rod 56, a threaded hole 57, an adjusting turntable 58, an anti-blocking block 59, a filtering protection plate 6, a mounting hole 7, an abutting locking mechanism 8, a moving through hole 81, a first vertical plate 82, a transverse plate 83, a second vertical plate 84, a supporting spring 85, a moving groove 86, a connecting plate 87, a locking rod 88, a locking hole 89, a pressing locking mechanism 9, a pressing plate 91, a spiral rod 92, an inner spiral pipe 93, an L-shaped fixing rod 94, a rotating column 95, a movable sleeve 96, a supporting rod 97, a winding shaft 98, a guide assembly 99, a guide rod 991, a guide cylinder 992, a side position connecting plate 42, a first sliding block 44, a second adjusting plate, an adjusting turntable blocks 59, an anti-blocking block 59, an anti-blocking plate 6, an anti-blocking mechanism 8, an anti-blocking mechanism, a movable sleeve, a movable, A guide spring 993, a traction cable 910.
Detailed Description
The invention will be further illustrated with reference to the following figures 1 to 9 and examples:
a power converter and electric railway vehicle carrying the power converter, including the vehicle 1, power converter 2 and heat-dissipating wind hole 3, the power converter 2 is fixedly set up on the bottom plate of the vehicle 1, and equip with the heat-dissipating wind hole 3 on the power converter 2, there are guard mechanisms 4 outside the power converter 2, the arrangement of the guard mechanism 4, is used for realizing the shutoff to the heat-dissipating wind hole 3, avoid the splash stone, enter the power converter 2, cause the semiconductor element in the power converter 2, reactor to take place and the combination equipment of the blower is damaged, the structure of the present power converter is improved in the invention, the improved power converter in the course of using, can prevent effectively the splash stone, enter the body, cause the body inner electric element to damage, thus in the actual application, the service life of the power conversion device can be prolonged, and the improved power conversion device has higher practical value.
In the embodiment, the protection mechanism 4 comprises a filtering protection frame 41 and a side position connecting plate 42, a filtering hole is arranged on the filtering protection frame 41, two first sliding blocks 43 are symmetrically and fixedly connected on two side walls of the filtering protection frame 41, the first sliding block 43 is arranged in a first limiting groove 44 in a sliding manner, the first limiting groove 44 is arranged on the power conversion device 2, a second sliding block 45 is fixedly connected on the side wall of the first sliding block 43, the second sliding block 45 is arranged in a second limiting groove 46 in a sliding manner, the second limiting groove 46 is arranged on the power conversion device 2, and the second limiting groove 46 is communicated with the first limiting groove 44, the protection mechanism 4 is additionally arranged in the invention and is used for plugging the radiating air hole 3, so that splashed stones can be effectively prevented from entering the power conversion device 2, and the splashed stones are prevented from causing damage to electric elements in the power conversion device 2, thereby prolonging the service life of the device.
In this embodiment, the protection mechanism 4 is provided with a fixing mechanism 5, the fixing mechanism 5 is arranged to fix the protection mechanism 4 on the power conversion device 2, and prevent the protection mechanism 4 from loosening and falling off during the movement of the vehicle, the fixing mechanism 5 includes a fixing hole 51 and a fixing plate 52, the fixing hole 51 is opened on the outer side wall of the power conversion device 2, the fixing plate 52 is arranged at a side position of the fixing hole 51 in a matching manner, the fixing plate 52 is fixedly arranged on the moving plate 53, the moving plate 53 is slidably arranged in the U-shaped supporting frame 54, the U-shaped supporting frame 54 is fixedly arranged on the outer side wall of the filtering protection frame 41, one end of the moving plate 53, which is far away from the fixing plate 52, is rotatably provided with a rotating shaft 55, a threaded rod 56 is fixedly connected to the rotating shaft 55, the threaded rod 56 is inserted into a threaded hole 57, the threaded hole 57 is opened on the U-shaped supporting frame 54, a free end of the threaded rod 56 is fixedly connected to an adjusting dial 58, the anti-clamping block 59 is fixedly connected to one end, far away from the moving plate 53, of the fixing plate 52, the anti-clamping block 59 is arranged, the fixing plate 52 can be ensured to smoothly enter the fixing hole 51, the fixing mechanism 5 is additionally arranged in the power conversion device 2, the fixing mechanism 5 is arranged and used for fixing the protection mechanism 4 on the power conversion device 2, the fixing mechanism 5 is reasonable in structural design, the time-saving and labor-saving effects can be achieved in the adjusting process, meanwhile, the fixing mechanism 5 is convenient to disassemble and assemble, the protection mechanism 4 can be conveniently disassembled and assembled, and therefore when the protection mechanism 4 is damaged, the replacing process is ensured, and the method can be conveniently and efficiently carried out.
In the embodiment, the mounting hole 7 is formed in the upper plate of the filtering protection frame 41, the filtering protection plate 6 is movably inserted in the mounting hole 7, the filtering hole is formed in the filtering protection plate 6, and the filtering protection plate 6 is arranged to ensure smooth passing of flowing air and further prevent splashed stones from entering the power conversion device 2.
In this embodiment, the filtering protection plate 6 is provided with the abutting locking mechanism 8, the abutting locking mechanism 8 is arranged to fix the filtering protection plate 6 on the filtering protection frame 41 through an abutting action, so as to ensure that the filtering protection plate 6 has a protection effect all the time, the abutting locking mechanism 8 comprises a moving through hole 81 and a first vertical plate 82, the moving through hole 81 is arranged on the U-shaped support frame 54, the first vertical plate 82 is movably arranged in the moving through hole 81, the lower end of the first vertical plate 82 is fixedly connected to the moving plate 53, the upper end of the first vertical plate 82 is fixedly connected with a transverse plate 83, the transverse plate 83 is movably inserted on a second vertical plate 84, the transverse plate 83 is externally wound with a support spring 85, two ends of the support spring 85 are respectively fixedly connected to the side wall of the transverse plate 83 and the side wall of the second vertical plate 84, and the second vertical plate 84 is movably arranged in the moving groove 86, the movable groove 86 is formed in the connecting plate 87, the connecting plate 87 is fixedly arranged on the filtering protection plate 6, the side wall of the second vertical plate 84 is fixedly connected with a plurality of locking rods 88, a plurality of locking holes 89 are formed in the locking rods 88, the locking holes 89 are matched with the locking rods 88 in number, the filtering protection plate 6 is provided with the conflict locking mechanism 8, the conflict locking mechanism 8 is arranged, the filtering protection plate 6 is stably fixed in the mounting hole 7 through conflict locking, splashing stones are filtered, the structural design of the device is reasonable, the conflict locking mechanism 8 can fix the filtering protection plate 6 in the fixing process of the fixing mechanism 5, the operation difficulty of the device is reduced, and high efficiency of the device is guaranteed.
In this embodiment, the filter protection frame 41 is provided with the press-fit locking mechanism 9, the press-fit locking mechanism 9 is arranged to further fix the filter protection plate 6 by press-fit interference, the press-fit locking mechanism 9 includes a press-fit plate 91 and a screw rod 92, the press-fit plate 91 is arranged above the filter protection plate 6, the press-fit plate 91 is fixedly sleeved outside the screw rod 92, an inner screw tube 93 is sleeved outside the screw rod 92, an L-shaped fixing rod 94 is fixedly connected to an outer side wall of the inner screw tube 93, a free end of the L-shaped fixing rod 94 is fixedly connected to an outer side wall of the filter protection frame 41, the screw rod 92 is movably inserted into the rotation column 95, a movable sleeve ring 96 is movably sleeved outside the rotation column 95, the movable sleeve ring 96 is fixedly arranged on the outer side wall of the filter protection frame 41, a plurality of support rods 97 are fixedly connected to a lower end face of the rotation column 95, and a lower end of the support rods 97 is fixedly connected to an upper end face of the winding shaft 98, the upper end face of the winding shaft 98 is fixedly connected with a guide assembly 99, the upper end of the guide assembly 99 is fixedly connected to the lower end of the screw rod 92, one end of a traction steel rope 910 is wound and connected to the circumference of the winding shaft 98, and the other end of the traction steel rope 910 is fixedly connected to the side wall of the first vertical plate 82.
In this embodiment, direction subassembly 99 includes guide bar 991, guide cylinder 992 and guide spring 993, the activity of guide bar 991 is pegged graft in guide cylinder 992, guide spring 993 winding is connected outside guide bar 991, and guide spring 993's one end fixed connection is on guide bar 991's lateral wall, guide spring 993's other end fixed connection is on guide cylinder 992's lateral wall, the setting of direction subassembly 99, both can play the spacing effect of direction for the motion of hob 92, and simultaneously, can provide power for the reset motion of hob 92 again.
The working principle of the invention comprises the following processes:
the first slider 43 and the first limiting groove 44 are matched and butted with each other without the positions of the second slider 45 and the second limiting groove 46, and the filtering protection frame 41 is pushed to drive the first slider 43 to move in the first limiting groove 44 until the filtering protection frame 41 stops moving;
then, the filter protection plate 6 is inserted into the mounting hole 7, and in the movement process, the position of the moving plate 53 needs to be adjusted in advance to ensure that the second vertical plate 84 can be accurately inserted into the moving groove 86;
then, the adjusting turntable 58 is screwed, the threaded rod 56 is driven to rotate by the rotation of the adjusting turntable 58, the moving plate 53 is pushed to move by the rotation of the threaded rod 56 through the threaded hole 57, the moving plate 53 drives the fixed plate 52 to move towards the direction close to the fixed hole 51 by the movement of the moving plate 53, and along with the continuous movement of the fixed plate 52, the fixed plate 52 can enter the fixed hole 51 under the guide of the anti-blocking block 59, so that under the action of the fixed machine pole 5, the filtering protection frame 41 can be fixed on the power conversion device 2, and the filtering of the splashed stones is completed through the filtering protection frame 41, so that the stones are prevented from entering the power conversion device 2, the electric elements in the power conversion device 2 are prevented from being damaged, and the service life of the equipment can be prolonged;
when the moving plate 53 moves, the first vertical plate 82 is driven to move, the second vertical plate 84 is driven to move through the transverse plate 83 due to the movement of the first vertical plate 82, the locking rod 88 is driven to move towards the locking hole 89 due to the movement of the second vertical plate 84, after the locking rod 88 enters the locking hole 89, the connecting plate 87 can be butted and locked on the outer side wall of the filtering protective frame 41 through the combined structure of the locking rod 88 and the locking hole 89, and the filtering protective plate 6 is locked in the mounting hole 7 through the connecting plate 87;
in the process of movement of the first vertical plate 82, the winding shaft 98 is pulled by the traction steel rope 910 to rotate clockwise, the rotation of the winding shaft 98 drives the screw rod 92 to rotate clockwise through the guide assembly 99, and the rotation of the screw rod 92 drives the pressing plate 91 to move above the filtering protection plate 6; simultaneously, take place pivoted in-process at hob 92, because hob 92 and interior spiral pipe 93 threaded connection, consequently under the effect of interior spiral pipe 93, can make hob 92 rotate the post 95 downstream relatively, hob 92's motion can take the pressfitting board 91 downstream to accomplish the pressfitting fixed process to filtering protection plate 6 from the top, thereby play further fixed effect to filtering protection plate 6.
The invention has the beneficial effects that:
the structure of the conventional power conversion device is improved, and the improved power conversion device can effectively prevent splashed stones from entering the shell to damage electrical elements in the shell in the using process, so that the service life of the power conversion device can be prolonged in practical application, and the improved power conversion device has higher practical value.
According to the invention, the protection mechanism 4 is additionally arranged, and the protection mechanism 4 is used for plugging the heat dissipation air hole 3, so that splashed stones can be effectively prevented from entering the power conversion device 2, and the phenomenon that the splashed stones cause damage to electric elements in the power conversion device 2 is avoided, and the service life of equipment is prolonged.
The fixing mechanism 5 is additionally arranged, the fixing mechanism 5 is arranged and used for fixing the protection mechanism 4 on the power conversion device 2, the fixing mechanism 5 is reasonable in structural design, time-saving and labor-saving effects can be achieved in the adjusting process, meanwhile, the fixing mechanism 5 can be conveniently disassembled and assembled, the protection mechanism 4 can be conveniently and efficiently disassembled and assembled, and therefore when the protection mechanism 4 is damaged, the replacing process can be conveniently and efficiently carried out.
According to the invention, the filtering protection plate 6 is additionally arranged on the protection mechanism 4, the filtering protection plate 6 is arranged and used for further preventing splashed stones from entering the power conversion device 2, and in order to realize a better protection effect, the filter protection frame 41 and the filtering protection plate 6 are designed to have different aperture sizes of the filter holes, so that the filtering of the stones with different particle sizes can be realized through the filtering protection frame 41 and the filtering protection plate 6.
According to the invention, the collision locking mechanism 8 is arranged on the filtering protection plate 6, the collision locking mechanism 8 is arranged, the filtering protection plate 6 is stably fixed in the mounting hole 7 through the collision locking effect, the function of filtering splashed stones is achieved, the structural design of the equipment is reasonable, the fixing process of the collision locking mechanism 8 on the filtering protection plate 6 can be realized in the fixing process of the fixing mechanism 5, the operation difficulty of the equipment is reduced, and the high efficiency of the equipment is ensured.
The pressing locking mechanism 9 is additionally arranged, the pressing locking mechanism 9 is arranged, the filtering protection plate 6 can be further fixed through pressing, the structural design of the equipment is reasonable, the pressing locking mechanism 9 can be driven to complete pressing locking in the process of completing pressing locking by the pressing locking mechanism 8 in the actual working process, and therefore the high efficiency of the equipment can be guaranteed.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (9)
1. An electric railway vehicle carrying a power conversion device comprises a vehicle (1), the power conversion device (2) and a heat dissipation air hole (3), wherein the power conversion device (2) is fixedly arranged on a bottom plate of the vehicle (1), and the heat dissipation air hole (3) is formed in the power conversion device (2), the electric railway vehicle is characterized in that a protection mechanism (4) is arranged outside the power conversion device (2), the protection mechanism (4) is arranged and used for plugging the heat dissipation air hole (3) and preventing splashed stones from entering the power conversion device (2) to cause damage to combined equipment of a semiconductor element, a reactor and a blower in the power conversion device (2), the protection mechanism (4) comprises a filtering protection frame (41) and a side position connecting plate (42), the filtering protection frame (41) is provided with a filtering hole, and two first sliding blocks (43) are symmetrically and fixedly connected to two side walls of the filtering protection frame (41), a sliding block (43) slides and sets up in a spacing groove (44), and a spacing groove (44) is seted up on power conversion equipment (2), No. two sliding blocks (45) of lateral wall fixedly connected with of a sliding block (43), and No. two sliding blocks (45) slide and set up in No. two spacing grooves (46), No. two spacing grooves (46) are seted up on power conversion equipment (2), and No. two spacing grooves (46) are linked together with a spacing groove (44).
2. The electric railway vehicle with a power converter according to claim 1, characterized in that: the protection mechanism (4) is provided with a fixing mechanism (5), and the fixing mechanism (5) is arranged and used for fixing the protection mechanism (4) on the power conversion device (2) so as to prevent the protection mechanism (4) from loosening and falling in the process of moving the vehicle.
3. The electric railway vehicle having the power converter mounted thereon according to claim 2, wherein: the fixing mechanism (5) comprises a fixing hole (51) and a fixing plate (52), the fixing hole (51) is formed in the outer side wall of the power conversion device (2), the fixing plate (52) is arranged on the side position of the fixing hole (51) in a matched mode, the fixing plate (52) is fixedly arranged on a moving plate (53), the moving plate (53) is arranged in a U-shaped supporting frame (54) in a sliding mode, the U-shaped supporting frame (54) is fixedly arranged on the outer side wall of the filtering and protecting frame (41), a rotating shaft (55) is rotatably arranged at one end, far away from the fixing plate (52), of the moving plate (53), a threaded rod (56) is fixedly connected onto the rotating shaft (55), the threaded rod (56) is in threaded connection with a threaded hole (57), the threaded hole (57) is formed in the U-shaped supporting frame (54), and a free end of the threaded rod (56) is fixedly connected with an adjusting turntable (58), one end of the fixing plate (52) far away from the moving plate (53) is fixedly connected with an anti-clamping block (59), and the arrangement of the anti-clamping block (59) can ensure that the fixing plate (52) can smoothly enter the fixing hole (51).
4. The electric railway vehicle having the power converter according to claim 3, wherein: the utility model discloses a wind power generation device, including filter protection frame (41), filter protection frame (6), filter protection frame (7), mounting hole (7) have been seted up on the upper plate of filter protection frame (41), and the activity is pegged graft in mounting hole (7) has filter protection plate (6), has seted up the filter hole on filter protection plate (6), and the setting of filter protection plate (6) both can guarantee the smooth of flowing wind and pass through, simultaneously, can further prevent that the stone that splashes from entering into in power conversion device (2).
5. The electric railway vehicle having the power converter according to claim 4, wherein: be provided with conflict locking mechanical system (8) on filtering guard plate (6), the setting of conflict locking mechanical system (8) through the conflict effect, will filter guard plate (6) and fix on filtering protective frame (41) to ensure that filtering guard plate (6) has the effect of protection all the time.
6. The electric railway vehicle having the power converter mounted thereon according to claim 5, wherein: the conflict locking mechanism (8) comprises a moving through hole (81) and a first vertical plate (82), the moving through hole (81) is formed in a U-shaped supporting frame (54), the first vertical plate (82) is movably arranged in the moving through hole (81), the lower end of the first vertical plate (82) is fixedly connected to the moving plate (53), the upper end of the first vertical plate (82) is fixedly connected with a transverse plate (83), the transverse plate (83) is movably inserted into a second vertical plate (84), a supporting spring (85) is wound outside the transverse plate (83), two ends of the supporting spring (85) are respectively and fixedly connected to the side wall of the transverse plate (83) and the side wall of the second vertical plate (84), the second vertical plate (84) is movably arranged in a moving groove (86), the moving groove (86) is formed in a connecting plate (87), and the connecting plate (87) is fixedly arranged on the filtering protection plate (6), the side wall fixedly connected with of No. two vertical plate (84) has a plurality of locking lever (88), a plurality of locking hole (89) have been seted up on locking lever (88), and locking hole (89) and the quantity phase-match setting of locking lever (88).
7. The electric railway vehicle having the power converter according to claim 6, wherein: be provided with pressfitting locking mechanical system (9) on filtering protection frame (41), the setting of pressfitting locking mechanical system (9) is through pressfitting conflict effect, further plays fixed effect to filtering protection plate (6).
8. The electric railway vehicle having the power converter according to claim 7, wherein: the pressing locking mechanism (9) comprises a pressing plate (91) and a screw rod (92), the pressing plate (91) is arranged above the filtering protection plate (6), the pressing plate (91) is fixedly sleeved outside the screw rod (92), an inner spiral pipe (93) is sleeved outside the screw rod (92), an L-shaped fixing rod (94) is fixedly connected to the outer side wall of the inner spiral pipe (93), the free end of the L-shaped fixing rod (94) is fixedly connected to the outer side wall of the filtering protection frame (41), the screw rod (92) is movably inserted into the rotating column (95), a movable sleeve ring (96) is movably sleeved outside the rotating column (95), the movable sleeve ring (96) is fixedly arranged on the outer side wall of the filtering protection frame (41), a plurality of support rods (97) are fixedly connected to the lower end face of the rotating column (95), and the lower ends of the support rods (97) are fixedly connected to the upper end face of the winding shaft (98), fixedly connected with direction subassembly (99) on the up end of spool (98), and the upper end fixed connection of direction subassembly (99) is on the lower extreme of hob (92), the winding is connected with the one end of pulling steel cable (910) on the circumference of spool (98), and the other end fixed connection of pulling steel cable (910) is on the lateral wall of a vertical plate (82).
9. The electric railway vehicle having the power converter according to claim 8, wherein: guide assembly (99) include guide bar (991), guide cylinder (992) and guide spring (993), guide bar (991) activity is pegged graft in guide cylinder (992), guide spring (993) winding is connected outside guide bar (991), and guide spring (993)'s one end fixed connection is on the lateral wall of guide bar (991), guide spring (993)'s other end fixed connection is on the lateral wall of guide cylinder (992).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110516071.7A CN113098237B (en) | 2021-05-12 | 2021-05-12 | Power converter and electric railway vehicle equipped with power converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110516071.7A CN113098237B (en) | 2021-05-12 | 2021-05-12 | Power converter and electric railway vehicle equipped with power converter |
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| CN113098237A CN113098237A (en) | 2021-07-09 |
| CN113098237B true CN113098237B (en) | 2022-05-31 |
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| CN111630766B (en) * | 2018-01-26 | 2024-02-09 | 株式会社日立制作所 | Power conversion device and electric railway vehicle equipped with same |
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| JP2003258471A (en) * | 2002-02-28 | 2003-09-12 | Mitsubishi Electric Corp | Cooler for moving element |
| JP2006240614A (en) * | 2006-03-22 | 2006-09-14 | Mitsubishi Electric Corp | Car-mounted cooler |
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| CN113098237A (en) | 2021-07-09 |
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