CN212353887U - Fuel cell automobile front cabin high-voltage distribution box - Google Patents
Fuel cell automobile front cabin high-voltage distribution box Download PDFInfo
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- CN212353887U CN212353887U CN202020355170.2U CN202020355170U CN212353887U CN 212353887 U CN212353887 U CN 212353887U CN 202020355170 U CN202020355170 U CN 202020355170U CN 212353887 U CN212353887 U CN 212353887U
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Abstract
The utility model provides a fuel cell car front deck high voltage distribution box, include: the high-voltage distribution box comprises a high-voltage distribution box body, a fuel cell boosting DC/DC input end, a fuel cell boosting DC/DC output end, a low-voltage DC/DC output end, a cooling plate, a cooling pipeline water inlet and a cooling pipeline water outlet; the high-voltage distribution box body is in a cuboid shape; the fuel cell boosting DC/DC input end, the fuel cell boosting DC/DC output end and the low-voltage DC/DC output end are arranged on the front surface of the body; the cooling pipeline water inlet and the cooling pipeline water outlet are arranged on the back surface of the body; the cooling plate is arranged in the body and is connected with the cooling pipeline water inlet and the cooling pipeline water outlet through cooling pipes; the utility model has the advantages that: the integrated design of the high-voltage power distribution unit of the front cabin of the fuel cell automobile is realized, the weight and the cost are reduced, and the space of the front cabin is saved.
Description
Technical Field
The invention belongs to the field of distribution of a hydrogen fuel cell automobile front cabin high-voltage system, and particularly relates to a fuel cell automobile front cabin high-voltage distribution box.
Background
The current high-voltage system distribution integration level is lower, fuel cell front deck generally arranges fuel galvanic pile system spare part, need step up DCDC with voltage rise to whole car voltage platform's voltage after distribute to whole car high voltage with electric apparatus and driving system use, whole car low voltage with electric apparatus need convert the high pressure into the low pressure through step down DCDC and charge for low voltage battery after simultaneously, be used for whole car low pressure to use electric system power supply, the front deck also has steering motor in addition, warm braw PTC, air condition compressor and fuel cell air compressor machine, high voltage with electric apparatus such as fuel cell PTC need carry out high-voltage power distribution. The fuel cell voltage boosting DCDC and voltage reducing DCDC and the front cabin power distribution unit in the prior art are generally arranged for separated parts, the number of high-voltage wires, the number of connectors, a shell and the like are increased, the weight cost is increased, and more front cabin space is occupied.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses an integrated fuel cell DC/DC and front deck high voltage distribution box and step-down DC/DC have realized the design of integrating of front deck high voltage distribution unit, have reduced weight, cost, have saved the front deck space. Meanwhile, the fuel cell voltage boosting DC/DC module and the voltage reducing DC/DC module can share the cooling plate on the internal arrangement of the distribution box, so that the cost is further reduced, the internal arrangement of the whole electrical box is compact and reasonable, the light weight and the cost reduction can be realized, and the whole volume is reduced.
The utility model provides a pair of fuel cell car front deck high voltage distribution box specifically includes:
the high-voltage distribution box comprises a high-voltage distribution box body, a fuel cell boosting DC/DC input end, a fuel cell boosting DC/DC output end, a cooling plate, a cooling pipeline water inlet and a cooling pipeline water outlet;
the high-voltage distribution box body is in a cuboid shape;
the fuel cell boosting DC/DC input ends comprise 4 fuel cell boosting DC/DC first input ends, fuel cell boosting DC/DC second input ends, fuel cell boosting DC/DC third input ends and fuel cell boosting DC/DC fourth input ends;
the fuel cell boosting DC/DC output ends comprise two, namely a fuel cell boosting DC/DC first output end and a fuel cell boosting DC/DC second output end;
the fuel cell boosting DC/DC input end and the fuel cell boosting DC/DC output end are uniformly distributed and arranged above the front surface of the high-voltage distribution box body;
the cooling pipeline water inlet and the cooling pipeline water outlet are arranged on the back surface of the high-voltage distribution box body; the cooling plate is arranged inside the high-voltage distribution box body and is connected with the cooling pipeline water inlet and the cooling pipeline water outlet through a cooling pipe.
Furthermore, 2U-shaped fixing grooves are symmetrically arranged on the left side surface and the right side surface of the high-voltage distribution box body respectively; the center of the bottom of the U-shaped fixing groove is provided with a screw hole; the high-voltage distribution box body is fixedly installed in a front cabin of the fuel cell automobile through a screw hole in the center of the bottom of the U-shaped fixing groove.
Further, the front of high voltage distribution box body still installs low pressure control signal end, air conditioner compressor and distributes the electrical terminal, fuel cell air compressor machine and distributes the electrical terminal and fuel cell PTC and distributes the electrical terminal.
Further, the back of the high-voltage distribution box body is provided with a grounding terminal, a warm air PTC distribution end and a steering motor distribution end.
Further, the right side of the high-voltage distribution box body is also provided with a fuel cell low-voltage DC/DC output end.
Further, the inside of high voltage distribution box body is divided into three regions, includes: a PDU placement area, a boost DC/DC placement area, and a low voltage DC/DC placement area.
Further, the PDU layout area is used for arranging PDU devices; the PDU equipment is electrically connected with the low-voltage control signal end, the air conditioner compressor power distribution end, the fuel cell air compressor power distribution end and the fuel cell PTC power distribution end.
Further, the boost DC/DC arranging region is for arranging a boost DC/DC; the boost DC/DC is electrically connected with the fuel cell boost DC/DC input end and the fuel cell boost DC/DC output end;
the low-voltage DC/DC arrangement area is used for arranging low-voltage DC/DC; the low voltage DC/DC is electrically connected with the low voltage DC/DC output end of the fuel cell.
The cooling plate is arranged between the boosting DC/DC arrangement area and the low-voltage DC/DC arrangement area; the cooling plate is shared by the boost DC/DC and the low-voltage DC/DC of the boost DC/DC arrangement region and the low-voltage DC/DC arrangement region.
The utility model provides a beneficial effect that technical scheme brought is: the integrated design of the high-voltage power distribution unit of the front cabin of the fuel cell automobile is realized, the weight and the cost are reduced, and the space of the front cabin is saved.
Drawings
FIG. 1 is a front view of the high voltage distribution box body structure of the front cabin of a fuel cell vehicle;
FIG. 2 is a right side and a back side view of the high voltage distribution box body structure of the front cabin of the fuel cell vehicle of the present invention;
fig. 3 is the internal structure diagram of the high-voltage distribution box body structure of the front cabin of the fuel cell vehicle of the utility model in fig. 1, fig. 2 and fig. 3:
1: a fuel cell boost DC/DC first input; 2: a fuel cell boost DC/DC second input; 3: a fuel cell boost DC/DC third input; 4: a fuel cell boost DC/DC fourth input; 5: a fuel cell boost DC/DC first output; 6: a fuel cell boost DC/DC second output; end 7: a low voltage control signal terminal; 8: a power distribution terminal of an air conditioner compressor; 9: a power distribution terminal of a fuel cell air compressor; 10: a fuel cell PTC distribution terminal; 11: a low voltage DC/DC output; 12: a cooling pipeline water inlet; 13: a water outlet of the cooling pipeline; 14: a ground terminal; 15: a warm air PTC distribution terminal; 16: a steering motor power distribution terminal; 17: a PDU arrangement region; 18: a boost DC/DC arrangement region; 19: a low voltage DC/DC layout area; 20: and (6) cooling the plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a structure diagram of a high voltage distribution box of a front cabin of a fuel cell vehicle, which specifically includes:
the high-voltage distribution box comprises a high-voltage distribution box body, a fuel cell boosting DC/DC input end, a fuel cell boosting DC/DC output end, a cooling plate 20, a cooling pipeline water inlet 12 and a cooling pipeline water outlet 13;
the high-voltage distribution box body is in a cuboid shape;
the fuel cell boosting DC/DC input ends comprise 4, namely a fuel cell boosting DC/DC first input end 1, a fuel cell boosting DC/DC second input end 2, a fuel cell boosting DC/DC third input end 3 and a fuel cell boosting DC/DC fourth input end 4;
the fuel cell boosting DC/DC output ends comprise two, namely a fuel cell boosting DC/DC first output end 5 and a fuel cell boosting DC/DC second output end 6;
the fuel cell boosting DC/DC input end and the fuel cell boosting DC/DC output end are uniformly distributed and arranged above the front surface of the high-voltage distribution box body;
the cooling pipeline water inlet 12 and the cooling pipeline water outlet 13 are arranged on the back of the high-voltage distribution box body; the cooling plate 20 is installed inside the high voltage distribution box body and is connected to the cooling pipe water inlet 12 and the cooling pipe water outlet 13 through a cooling pipe.
The left side surface and the right side surface of the high-voltage distribution box body are respectively and symmetrically provided with 2U-shaped fixing grooves; the center of the bottom of the U-shaped fixing groove is provided with a screw hole; the high-voltage distribution box body is fixedly installed in a front cabin of the fuel cell automobile through a screw hole in the center of the bottom of the U-shaped fixing groove.
And the front surface of the high-voltage distribution box body is also provided with a low-voltage control signal terminal 7, an air conditioner compressor distribution terminal 8, a fuel cell air compressor distribution terminal 9 and a fuel cell PTC distribution terminal 10.
The back of the high-voltage distribution box body is provided with a grounding terminal 14, a warm air PTC distribution terminal 15 and a steering motor distribution terminal 16.
The right side of the high-voltage distribution box body is also provided with a fuel cell low-voltage DC/DC output end 11.
The inside of high voltage distribution box body is divided into three regions, includes: a PDU layout area 17, a boost DC/DC layout area 18, and a low voltage DC/DC layout area 19.
The PDU layout region 17 is used for arranging PDU devices; the PDU equipment is electrically connected with the low-voltage control signal end 7, the air conditioner compressor power distribution end 8, the fuel cell air compressor power distribution end 9 and the fuel cell PTC power distribution end 10.
The boost DC/DC arranging region 18 is for arranging boost DC/DC; the boost DC/DC is electrically connected with the fuel cell boost DC/DC input end and the fuel cell boost DC/DC output end;
the low voltage DC/DC arrangement area 19 is for arranging low voltage DC/DC; the low voltage DC/DC is electrically connected to the fuel cell low voltage DC/DC output 11.
The cooling plate 20 is provided between the step-up DC/DC arrangement region 18 and the low-voltage DC/DC arrangement region 19; the cooling plate 20 is shared by the boost DC/DC and the low-voltage DC/DC of the boost DC/DC arrangement region 18 and the low-voltage DC/DC arrangement region 19.
In the embodiment, the DC/DC input end of the fuel cell mainly inputs the electric energy generated by the fuel cell to the boosting DC/DC output end of the fuel cell for boosting conversion, and because the voltage is relatively low and the current is large, the number of connectors is large; the fuel cell step-up DC/DC output end provides electric energy for the high-voltage electric appliance of the whole vehicle, the module for realizing the function is step-up DC/DC, and the module is arranged on the upper layer of the layered structure of the electric appliance box, namely a step-up DC/DC arrangement area, because the power is larger, the internal occupied space is larger, and the weight is also larger. The low-voltage DC/DC is used for converting high-voltage electricity output by the boosted DC/DC into low-voltage electricity used by the whole vehicle low-voltage electric appliance, plays an important role in the operation and low-voltage control of the whole vehicle low-voltage electric appliance, and is arranged at the lower layer of the layered structure of the electric appliance box, namely a low-voltage DC/DC arrangement area. The fuel cell air compressor machine, fuel cell PTC, air condition compressor, turn to the motor, the distribution of warm braw PTC all is the function that whole car high voltage distribution unit realized, inside components and parts mainly have relay, fuse, copper bar etc. this electrical apparatus box is integrated above DC/DC that steps up, behind the function of low pressure DC/DC and high voltage distribution unit, can reduce the quantity of high-voltage wire harness, effectively reduce weight and cost, save the front deck and arrange the space, be favorable to realizing the neat standard that the front deck part arranged simultaneously.
The utility model has the advantages that: the integrated design of the high-voltage power distribution unit of the front cabin of the fuel cell automobile is realized, the weight and the cost are reduced, and the space of the front cabin is saved.
The related expressions such as upper, lower, left, right, front, side, back mentioned in the present invention are only used for convenience of expression, and are not used for any position or function limitation.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a fuel cell car front deck high pressure block terminal which characterized in that: the method specifically comprises the following steps:
the high-voltage distribution box comprises a high-voltage distribution box body, a fuel cell boosting DC/DC input end, a fuel cell boosting DC/DC output end, a cooling plate (20), a cooling pipeline water inlet (12) and a cooling pipeline water outlet (13);
the high-voltage distribution box body is in a cuboid shape;
the fuel cell boosting DC/DC input ends comprise 4, namely a first fuel cell boosting DC/DC input end (1), a second fuel cell boosting DC/DC input end (2), a third fuel cell boosting DC/DC input end (3) and a fourth fuel cell boosting DC/DC input end (4);
the fuel cell boosting DC/DC output ends comprise two, namely a first fuel cell boosting DC/DC output end (5) and a second fuel cell boosting DC/DC output end (6);
the fuel cell boosting DC/DC input end and the fuel cell boosting DC/DC output end are uniformly distributed and arranged above the front surface of the high-voltage distribution box body;
the cooling pipeline water inlet (12) and the cooling pipeline water outlet (13) are arranged on the back of the high-voltage distribution box body; the cooling plate (20) is installed inside the high-voltage distribution box body and is connected with the cooling pipeline water inlet (12) and the cooling pipeline water outlet (13) through a cooling pipe.
2. A fuel cell automotive front compartment high voltage distribution box according to claim 1, characterized in that: the left side surface and the right side surface of the high-voltage distribution box body are respectively and symmetrically provided with 2U-shaped fixing grooves; the center of the bottom of the U-shaped fixing groove is provided with a screw hole; the high-voltage distribution box body is fixedly installed in a front cabin of the fuel cell automobile through a screw hole in the center of the bottom of the U-shaped fixing groove.
3. A fuel cell automotive front compartment high voltage distribution box according to claim 1, characterized in that: the front of high voltage distribution box body still installs low pressure control signal end (7), air conditioner compressor and distributes electrical terminal (8), fuel cell air compressor machine and distributes electrical terminal (9) and fuel cell PTC and distributes electrical terminal (10).
4. A fuel cell automotive front compartment high voltage distribution box according to claim 1, characterized in that: the back of the high-voltage distribution box body is provided with a grounding terminal (14), a warm air PTC distribution terminal (15) and a steering motor distribution terminal (16).
5. A fuel cell automotive front compartment high voltage distribution box according to claim 3, characterized in that: the right side of the high-voltage distribution box body is also provided with a fuel cell low-voltage DC/DC output end (11).
6. A fuel cell automotive front compartment hyperbaric distribution box according to claim 5, wherein: the inside of high voltage distribution box body is divided into three regions, includes: a PDU arrangement region (17), a boost DC/DC arrangement region (18) and a low voltage DC/DC arrangement region (19).
7. A fuel cell automotive front compartment hyperbaric distribution box according to claim 6, wherein: the PDU arrangement region (17) is used for arranging PDU equipment; PDU equipment with low pressure control signal end (7), air condition compressor distribution end (8), fuel cell air compressor machine distribution end (9) and fuel cell PTC distribution end (10) electric connection.
8. A fuel cell automotive front compartment hyperbaric distribution box according to claim 6, wherein:
the boost DC/DC arrangement region (18) is used for arranging boost DC/DC; the boost DC/DC is electrically connected with the fuel cell boost DC/DC input end and the fuel cell boost DC/DC output end;
the low voltage DC/DC arrangement area (19) is used for arranging low voltage DC/DC; the low voltage DC/DC is electrically connected with the low voltage DC/DC output end (11) of the fuel cell.
9. A fuel cell automotive front compartment hyperbaric distribution box according to claim 6, wherein: the cooling plate (20) is disposed between the step-up DC/DC arrangement region (18) and the low-voltage DC/DC arrangement region (19); the cooling plate (20) is shared by the boost DC/DC and the low-voltage DC/DC of the boost DC/DC arrangement region (18) and the low-voltage DC/DC arrangement region (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020355170.2U CN212353887U (en) | 2020-03-19 | 2020-03-19 | Fuel cell automobile front cabin high-voltage distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020355170.2U CN212353887U (en) | 2020-03-19 | 2020-03-19 | Fuel cell automobile front cabin high-voltage distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212353887U true CN212353887U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020355170.2U Active CN212353887U (en) | 2020-03-19 | 2020-03-19 | Fuel cell automobile front cabin high-voltage distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212353887U (en) |
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2020
- 2020-03-19 CN CN202020355170.2U patent/CN212353887U/en active Active
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