CN212950159U

CN212950159U - Fuel cell converter and electric automobile

Info

Publication number: CN212950159U
Application number: CN202021731341.3U
Authority: CN
Inventors: 王飞; 吴壬华
Original assignee: Shenzhen Shinry Technologies Co Ltd
Current assignee: Shenzhen Shinry Technologies Co Ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-04-13
Anticipated expiration: 2030-08-14

Abstract

The utility model provides a fuel cell converter and an electric automobile, wherein the fuel cell converter comprises a shell, an input interface, a signal control interface, a voltage conversion module and a first output interface component; the input interface and the signal control interface are arranged on the shell, the input interface is used for receiving a first voltage signal, the signal control interface is used for receiving a control signal, the voltage conversion module is arranged in the shell, the voltage conversion module is respectively and electrically connected with the input interface and the signal control interface so as to convert the first voltage signal into a second voltage signal under the control of the control signal, and the first output interface component comprises a battery interface and a motor control interface; the battery interface and the motor control interface are both arranged on the shell and are respectively and electrically connected with the output end of the voltage conversion module so as to output a second voltage signal. The utility model discloses a fuel cell converter compact structure, it is small.

Description

Fuel cell converter and electric automobile

Technical Field

The utility model belongs to the transformer field, concretely relates to fuel cell converter and electric automobile.

Background

The voltage generated by the fuel cell system is usually unstable, and sometimes the voltage generated by the fuel cell system does not necessarily meet the voltage requirement of each device, therefore, the fuel cell system is usually connected to the device not directly, but through a Direct Current to Direct Current (DC-DC) fuel cell converter, so that stable voltage output can be performed, and the voltages required by different devices can be output. One DCDC is applied to various scenes, different equipment is required to be connected, different equipment interfaces are different, the existing DCDC fuel cell converter can not meet the requirements in this respect often, other interfaces are required to be connected externally, the use is inconvenient, and the size is large.

SUMMERY OF THE UTILITY MODEL

In view of this, embodiments of the present invention provide a fuel cell converter, which can be connected to multiple external devices simultaneously, without using a conversion interface, and has a compact structure and a smaller size.

Furthermore, the embodiment of the utility model provides an electric automobile is still provided.

The utility model provides a fuel cell converter, which is used for outputting the electric energy generated by a fuel cell system in a voltage-stabilizing way and comprises a shell, an input interface, a signal control interface, a voltage conversion module and a first output interface component; the input interface and the signal control interface are arranged on the shell, the input interface is used for receiving a first voltage signal, the signal control interface is used for receiving a control signal, the voltage conversion module is arranged in the shell, the voltage conversion module is respectively and electrically connected with the input interface and the signal control interface so as to convert the first voltage signal into a second voltage signal under the control of the control signal, and the first output interface component comprises a battery interface and a motor control interface; the battery interface and the motor control interface are both arranged on the shell and are respectively and electrically connected with the output end of the voltage conversion module so as to output the second voltage signal.

Furthermore, the shell comprises a cylinder body with openings at two opposite ends, and a first bottom plate and a second bottom plate which are respectively arranged at two ends of the cylinder body; the cylinder body comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially connected end to end; the input interface is arranged on the second side plate; the battery interface and the motor control interface are both arranged on the first side plate; the signal control interface is arranged on the fourth side plate.

Further, the fuel cell converter also includes a second output interface assembly; the second output interface assembly is arranged on the second side plate and electrically connected with the output end of the voltage conversion module so as to output the second voltage signal.

Further, the second output interface assembly comprises a hydrogen pump interface, a water pump interface and an air compressor interface; the hydrogen pump interface is electrically connected with the output end of the voltage conversion module so as to output the second voltage signal; the water pump interface is electrically connected with the output end of the voltage conversion module so as to output the second voltage signal; and the air compressor interface is electrically connected with the output end of the voltage conversion module so as to output the second voltage signal.

Further, the fuel cell converter further comprises a vent valve, wherein the vent valve is arranged on the first side plate and communicated with the inside of the shell, and is used for keeping the pressure inside the fuel cell converter stable.

Further, the fuel cell converter further includes a fixing member; the fixing member is provided on the cylinder for fixing the fuel cell converter to an external device.

Further, the voltage conversion module comprises a fuse located within the housing for over-current and/or over-voltage protection of the fuel cell converter; the first bottom plate comprises a plate body and a cover body, a through hole is formed in the position, opposite to the fuse, of the plate body, and the cover body is detachably arranged on the plate body and seals the through hole.

Further, the fuel cell converter further comprises a condensing system; the condensing system comprises a condensing pipe and a liquid inlet pipe and a liquid outlet pipe which are respectively connected with two ends of the condensing pipe; the condensation pipe is arranged in the shell and surrounds the voltage conversion module; the liquid inlet pipe and the liquid outlet pipe are arranged on the third side plate.

Furthermore, the liquid inlet pipe comprises a first connecting part and a liquid inlet end connected with the first connecting part in a bending way; one end of the first connecting part is connected with the liquid inlet of the condensing pipe, the other end of the first connecting part is connected with the liquid inlet end, and the first connecting part extends from the third side plate to the direction departing from the third side plate; the liquid inlet end extends from one end, far away from the third side plate, of the first connecting part to the direction of the first bottom plate; the liquid outlet pipe comprises a second connecting part and a liquid outlet end connected with the second connecting part in a bending mode; one end of the second connecting part is connected with the liquid outlet of the condensing pipe, the other end of the second connecting part is connected with the liquid outlet end, and the second connecting part extends from the third side plate to the direction departing from the third side plate; the liquid outlet end extends from one end, far away from the third side plate, of the second connecting part to the direction of the second side plate or the fourth side plate.

The utility model also provides an electric automobile, which comprises a fuel cell, the fuel cell converter and an automobile body; the fuel cell and the fuel cell converter are both arranged in the vehicle body; the fuel cell is used for generating electric energy, and the input end of the fuel cell converter is electrically connected with the output end of the fuel cell and used for performing voltage stabilization output on the electric energy generated by the fuel cell so as to supply power for the vehicle body.

Therefore, the utility model discloses a fuel cell converter is through rationally arranging input interface, battery interface, motor control interface and signal control interface position for more external equipment can be connected simultaneously to the fuel cell converter, need not to use interface fuel cell converter, and the structure is compacter, and the volume is littleer.

Drawings

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of a fuel cell converter according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a fuel cell converter according to another embodiment of the present invention.

Fig. 3 is a schematic circuit diagram of a fuel cell converter according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an electric vehicle according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a fuel cell converter 100 according to an embodiment of the present invention is applied to output electric energy generated by a fuel cell system in a stable voltage, and includes a voltage conversion module 10, a housing 30, an input interface 50, a first output interface assembly 70, and a signal control interface 90. The housing 30 includes a cylinder 31 with openings at opposite ends, and a first bottom plate 32 and a second bottom plate 33 respectively disposed at two ends of the cylinder 31. The cylinder 31 includes a first side plate 311, a second side plate 312, a third side plate 313 and a fourth side plate 314 connected end to end. The input interface 50 is disposed on the second side plate 312, and is used for connecting an output terminal (i.e., a stack) (not shown) of the fuel cell system to receive the first voltage signal. The signal control interface 90 is disposed on the fourth side plate 314 for receiving a control signal. The voltage conversion module 10 is disposed within the housing 30. The voltage conversion module 10 is electrically connected to the input interface 30 and the signal control interface 90 respectively, so as to convert the first voltage signal into the second voltage signal under the control of the control signal. The first output interface assembly 70 includes a battery interface 71 and a motor control interface 73. The battery interface 71 and the motor control interface 73 are disposed on the first side plate 311, and are respectively electrically connected to the output end of the voltage conversion module 10 to output the second voltage signal. Specifically, the battery interface 71 is used for connecting an external power battery to charge the power battery; the motor control interface 73 is used to connect to a motor controller to power the motor. The utility model discloses a fuel cell converter 100 can be used for carrying out high-power output steady voltage output, specifically, can be used for carrying out the output of 30KW-150KW power, for example 30KW, 50KW, 60KW, 90KW, 120KW etc..

In an embodiment, the fuel cell converter 100 of the present invention may be a DCDC fuel cell converter, and the voltage conversion module may be a DCDC voltage boost module, for converting the lower voltage of the incoming voltage conversion module into a higher voltage, that is, the voltage of the second voltage signal is higher than the first voltage signal.

The utility model discloses a fuel cell converter 100 is through the reasonable arrangement to input interface 50, battery interface 71, motor control interface 73 and signal control interface 90 position for more external equipment can be connected simultaneously to fuel cell converter 100, need not to use interface fuel cell converter, and the structure is compacter, and the volume is littleer.

Referring to fig. 1 and 3, in some embodiments, the fuel cell converter 100 of the present invention further includes a second output interface assembly 20. The second output interface assembly 20 is disposed on the second side plate 312 and electrically connected to the output end of the voltage conversion module 10 for outputting a second voltage signal. In addition, the second output interface assembly 20 can also be used as a backup interface, increasing the application scenarios of the fuel cell converter 100.

In some embodiments, the second output interface assembly 20 includes a hydrogen pump interface 21. The hydrogen pump interface 21 is electrically connected to the output end of the voltage conversion module 10, and is used for connecting the hydrogen pump to supply power to the hydrogen pump, so as to output the second voltage signal.

In some embodiments, the second output interface assembly 20 further includes a water pump interface 23. The water pump interface 21 is electrically connected to the output end of the voltage conversion module 10, and is used for connecting a water pump to supply power to the water pump, so as to output the second voltage signal.

In some embodiments, the second output interface assembly 20 further includes an air compressor interface 25. The air compressor interface 25 is electrically connected to the output end of the voltage conversion module 10, and is used for supplying power to the air compressor to output the second voltage signal.

Referring to fig. 1, in some embodiments, the voltage conversion module 10 includes a fuse (not shown) within the housing 30 for over-current and/or over-voltage protection of the fuel cell converter 100 to increase the service life of the fuel cell converter 100. The first base plate 32 includes a plate 321 and a cover 322, a through hole 323 is disposed on the plate 321 at a position opposite to the fuse, and the cover 322 is detachably disposed on the plate 321 and seals the through hole 323. By providing the through hole 323 in the first base plate 32, it is possible to facilitate the replacement of the fuse, which facilitates the later maintenance of the fuel cell converter 100.

Referring to fig. 1, in some embodiments, the fuel cell converter 100 further includes a vent valve 101, and the vent valve 101 is disposed on the first side plate 311 and is communicated with the inside of the housing 30 for maintaining the pressure inside the fuel cell converter 100 stable.

In some embodiments, the fuel cell converter 100 further includes a mount 103. The fixing member 103 is provided around the cylinder 31 for fixing the fuel cell converter 100 to an external device. Specifically, the mounting 103 is 3, 4 or 5, and when the mounting 103 is a plurality of, the mounting 103 can be symmetrically arranged around the barrel 31, and can also be adjusted according to the actual installation environment, and the utility model discloses do not do specifically to this and limit. Further, the fixing member 103 has a hole 105, and the hole 105 is used for a screw to pass through to fix the fixing member 103.

Referring to fig. 2, the fuel cell converter 100 further includes a condensing system 40. A condensing system 40 is disposed within the housing 30 for cooling the voltage conversion module 10 to increase the service life and safety of the fuel cell converter 100. Specifically, the condensing system 40 includes a condensing tube (not shown), and a liquid inlet pipe 41 and a liquid outlet pipe 43 respectively connected to two ends of the condensing tube. The condensation duct is disposed within the housing 30 and surrounds the voltage conversion module 10 to better cool the voltage conversion module 10. The liquid inlet pipe 41 and the liquid outlet pipe 43 are both disposed on the third side plate 313.

In one embodiment, the liquid inlet pipe 41 includes a first connection portion 411 and a liquid inlet end 413 connected to the first connection portion 411 in a bending manner. One end of the first connecting portion 411 is connected to the liquid inlet of the condenser tube, and the other end is connected to the liquid inlet end 413, and the first connecting portion 411 extends from the third side plate 313 to the direction away from the third side plate 313. The liquid inlet end 413 extends from one end of the first connecting portion 411 away from the third side plate 313 to the direction of the first bottom plate 32. In an embodiment, the first connection portion 411 extends from a position on the third side plate 313 close to the second bottom plate 33 to a direction away from the third side plate 313, and the liquid inlet end 413 extends from an end of the first connection portion 411 away from the third side plate 313 to the direction of the first bottom plate 32 and extends to the first bottom plate 32. The inlet pipe 41 thus does not extend beyond the first bottom plate 32 in the direction of the inlet end 413, which makes the fuel cell converter 100 more compact and less bulky.

The liquid outlet pipe 43 includes a second connecting portion 431 and a liquid outlet end 433 connected to the second connecting portion 431 in a bending manner. One end of the second connecting portion 431 is connected to the liquid outlet of the condensation tube, the other end is connected to the liquid outlet 433, and the second connecting portion 431 extends from the third side plate 313 to the direction away from the third side plate 313. The liquid outlet end 433 extends from one end of the second connecting portion 431 away from the third side plate 313 to the direction of the second side plate 312 or the fourth side plate 314.

The condensate flows in from feed liquor end 413, cools off back through the condenser pipe to voltage conversion module 10, flows out from play liquid end 433, and feed liquor end 413 is 90 settings with play liquid end 433, and during the use, feed liquor end 413 level up, play liquid end 433 level is placed, makes the condensate near from high play like this, and low department goes out, both can save the electric energy, can be better again carry out the condensation to voltage conversion module 10.

Referring to fig. 4, the present invention further provides an electric vehicle 200, which includes a fuel cell 210, a fuel cell converter 100 according to an embodiment of the present invention, and a vehicle body 230. The fuel cell 210 and the fuel cell converter 100 are both disposed in the vehicle body 230. The fuel cell 210 is used for generating electric energy, and an input end of the fuel cell converter 100 is electrically connected with an output end of the fuel cell, and is used for performing voltage-stabilized output on the electric energy generated by the fuel cell to supply power to the vehicle body 230.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A fuel cell converter is used for outputting the electric energy generated by a fuel cell system in a voltage stabilizing way, and is characterized by comprising a shell, an input interface, a signal control interface, a voltage conversion module and a first output interface component; the input interface and the signal control interface are arranged on the shell, the input interface is used for receiving a first voltage signal, the signal control interface is used for receiving a control signal, the voltage conversion module is arranged in the shell, the voltage conversion module is respectively and electrically connected with the input interface and the signal control interface so as to convert the first voltage signal into a second voltage signal under the control of the control signal, and the first output interface component comprises a battery interface and a motor control interface; the battery interface and the motor control interface are both arranged on the shell and are respectively and electrically connected with the output end of the voltage conversion module so as to output the second voltage signal.

2. The fuel cell converter according to claim 1, wherein the housing includes a cylindrical body open at opposite ends, a first bottom plate and a second bottom plate respectively disposed at the opposite ends of the cylindrical body; the cylinder body comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially connected end to end; the input interface is arranged on the second side plate; the battery interface and the motor control interface are both arranged on the first side plate; the signal control interface is arranged on the fourth side plate.

3. The fuel cell converter of claim 2, further comprising a second output interface assembly; the second output interface assembly is arranged on the second side plate and electrically connected with the output end of the voltage conversion module so as to output the second voltage signal.

4. The fuel cell converter of claim 3, wherein the second output interface assembly comprises a hydrogen pump interface, a water pump interface, and an air compressor interface; the hydrogen pump interface is electrically connected with the output end of the voltage conversion module so as to output the second voltage signal; the water pump interface is electrically connected with the output end of the voltage conversion module so as to output the second voltage signal; and the air compressor interface is electrically connected with the output end of the voltage conversion module so as to output the second voltage signal.

5. The fuel cell converter of claim 2 further comprising a vent valve disposed in the first side plate and in communication with the housing interior for maintaining a stable pressure within the fuel cell converter.

6. The fuel cell converter of claim 2, further comprising a fixture; the fixing member is provided on the cylinder for fixing the fuel cell converter to an external device.

7. The fuel cell converter of claim 2, wherein the voltage conversion module comprises a fuse within the housing for over-current and/or over-voltage protection of the fuel cell converter; the first bottom plate comprises a plate body and a cover body, a through hole is formed in the position, opposite to the fuse, of the plate body, and the cover body is detachably arranged on the plate body and seals the through hole.

8. The fuel cell converter according to any of claims 2-7, further comprising a condensing system; the condensing system comprises a condensing pipe and a liquid inlet pipe and a liquid outlet pipe which are respectively connected with two ends of the condensing pipe; the condensation pipe is arranged in the shell and surrounds the voltage conversion module; the liquid inlet pipe and the liquid outlet pipe are arranged on the third side plate.

9. The fuel cell converter according to claim 8, wherein the inlet pipe includes a first connection portion and an inlet end bent and connected to the first connection portion; one end of the first connecting part is connected with the liquid inlet of the condensing pipe, the other end of the first connecting part is connected with the liquid inlet end, and the first connecting part extends from the third side plate to the direction departing from the third side plate; the liquid inlet end extends from one end, far away from the third side plate, of the first connecting part to the direction of the first bottom plate; the liquid outlet pipe comprises a second connecting part and a liquid outlet end connected with the second connecting part in a bending mode; one end of the second connecting part is connected with the liquid outlet of the condensing pipe, the other end of the second connecting part is connected with the liquid outlet end, and the second connecting part extends from the third side plate to the direction departing from the third side plate; the liquid outlet end extends from one end, far away from the third side plate, of the second connecting part to the direction of the second side plate or the fourth side plate.

10. An electric vehicle comprising a fuel cell, a fuel cell converter according to any one of claims 1 to 9, and a vehicle body; the fuel cell and the fuel cell converter are both arranged in the vehicle body; the fuel cell is used for generating electric energy, and the input end of the fuel cell converter is electrically connected with the output end of the fuel cell and used for performing voltage stabilization output on the electric energy generated by the fuel cell so as to supply power for the vehicle body.