CN219957647U - Opposite-support experiment bench high-voltage box for collecting multipath current and voltage - Google Patents
Opposite-support experiment bench high-voltage box for collecting multipath current and voltage Download PDFInfo
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- CN219957647U CN219957647U CN202320842783.2U CN202320842783U CN219957647U CN 219957647 U CN219957647 U CN 219957647U CN 202320842783 U CN202320842783 U CN 202320842783U CN 219957647 U CN219957647 U CN 219957647U
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- 238000002474 experimental method Methods 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000008054 signal transmission Effects 0.000 claims abstract description 5
- 238000013480 data collection Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of distribution boxes, in particular to a butt-support experiment table frame high-voltage box for multi-path current and voltage collection, which comprises a box body, wherein the box body is provided with a positive power interface and a negative power interface which are connected with a battery pack, a positive output 1 interface and a negative output 1 interface which are connected with a driving motor, a positive output 2 interface and a negative output 2 interface which are connected with a towed motor, and a low-voltage signal interface for providing power supply and CAN network communication signal transmission for a high-voltage collection module. The utility model integrates a high-voltage acquisition module in a high-voltage box body, acquires current and voltage signals of a driving motor and a towed motor, then sends the signals to a CAN network through a low-voltage signal interface, and an upper computer in the CAN network records the signals and calculates power and output efficiency curves. Thereby replacing a power analysis instrument, reducing the cost and saving the resources.
Description
Technical Field
The utility model relates to the technical field of distribution boxes, in particular to a split-type experiment bench high-voltage box for multi-channel current and voltage collection.
Background
When a new energy automobile motor is used for carrying out a load experiment, the work of a driving motor is generally consumed through a loading machine, for example, a driving motor with the power of 100KW is used, when 60KW power is output, the loading machine needs to consume the 60KW power through self-heating, and resources are greatly wasted; therefore, in a laboratory bench at present, two motors are generally used for carrying out load experiments, one of the motors is used as the output power of the driving motor, in addition, the towed motor consumes the output power of the driving motor as a load through reverse moment and feedback power generation, and meanwhile, the towed motor transmits the feedback power generation to the power end of the driving motor, so that the energy consumption is effectively reduced, and meanwhile, the load consumption function is also considered.
In the opposite-support experiment bench, the high-voltage box is responsible for the normal actions of the power on and off of the driving motor, and effectively cuts off the power supply when abnormal conditions occur, so that the safety of the whole circuit is protected, but the data acquisition of the system and the efficiency calculation of the driving motor are calculated by additionally adding a set of power analysis instrument. In order to save resources and reduce cost, a high-voltage box capable of collecting current and voltage data is needed to be matched with an upper computer to replace a power analysis instrument so as to realize data collection and efficiency calculation.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a counter-support experiment bench high-voltage box for multi-path current and voltage collection, which upgrades and improves the existing high-voltage box to realize current and voltage data collection among a driving motor, a towed motor and a battery pack.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a multichannel electric current, voltage are gathered with to holding in palm experiment bench high voltage box, includes the box, the box is provided with positive interface of power and power negative interface, the output 1 positive interface and the output 1 negative interface that are connected with driving motor, the output 2 positive interface and the output 2 negative interface that are connected with the towed motor that are connected with the group battery, and provide power and CAN network communication signal transmission's low pressure signal interface for high voltage acquisition module; the high-voltage acquisition module comprises battery pack terminal voltage acquisition HV+ and HV-, output 1 positive interface voltage acquisition HV+1, output 1 positive interface current acquisition I1 and output 2 positive interface current acquisition I2.
Preferably, the box body is a waterproof airtight box body, and the box body is further provided with a grounding valve and a pressure relief valve.
Preferably, the low voltage signal interface may provide 24V dc power.
Preferably, the main circuit which is connected with the battery pack is provided with a first contactor, and the first contactor has the specification of 400A/750V, so that remote automatic control and manual control can be realized.
Preferably, the output 1 positive interface is provided with a second contactor and a pre-charging module connected with the second contactor in parallel corresponding to the circuit.
Preferably, the first fuse is connected in series with the positive interface of the output 1, the second fuse is connected in series with the positive interface of the output 2, and the specification of the first fuse and the second fuse is 350A/750V.
The beneficial effects of the utility model are as follows: the utility model provides a multichannel electric current, voltage are gathered and are used to hold in palm experiment bench high voltage box, its includes the box, the box is provided with positive interface of power and power negative interface, the output 1 positive interface and the output 1 negative interface of being connected with driving motor, the output 2 positive interface and the output 2 negative interface of being connected with the towed motor that are connected with group battery, and provide power and CAN network communication signal transmission's low pressure signal interface for high voltage acquisition module; the high-voltage acquisition module comprises battery pack terminal voltage acquisition HV+ and HV-, output 1 positive interface voltage acquisition HV+1, output 1 positive interface current acquisition I1 and output 2 positive interface current acquisition I2. The utility model integrates a high-voltage acquisition module in a high-voltage box body, acquires current and voltage signals of a driving motor and a towed motor, then sends the signals to a CAN network through a low-voltage signal interface, and an upper computer in the CAN network records the signals and calculates power and output efficiency curves. Thereby replacing a power analysis instrument, reducing the cost and saving the resources.
Drawings
FIG. 1 is a schematic view of the external interface of the high pressure tank of the present utility model;
fig. 2 shows a high voltage topology of a gantry experiment.
Reference numerals illustrate:
1-box body, 2-power positive interface, 3-power negative interface, 4-output 1 positive interface, 5-output 1 negative interface, 6-output 2 positive interface, 7-output 2 negative interface, 8-low voltage signal interface, 9-high voltage acquisition module, 10-grounding, 11-pressure release valve, 12-contactor I, 13-contactor II, 14-pre-charging module, 15-fuse I, 16-fuse II.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and the specific embodiments, without limiting the scope of the utility model.
As shown in fig. 1 and 2, the multi-path current and voltage collection bench high-voltage box comprises a box body 1, wherein the box body 1 is provided with a positive power interface 2 and a negative power interface 3 which are connected with a battery pack, a positive output 1 interface 4 and a negative output 1 interface 5 which are connected with a driving motor, a positive output 2 interface 6 and a negative output 2 interface 7 which are connected with a towed motor, and a low-voltage signal interface 8 which provides power supply and CAN network communication signal transmission for a high-voltage collection module 9; the high-voltage acquisition module 9 comprises battery pack terminal voltage acquisition HV+ and HV-, output 1 positive interface 4 voltage acquisition HV+1, output 1 positive interface 4 current acquisition I1 and output 2 positive interface 6 current acquisition I2.
The utility model upgrades the existing high-voltage box, integrates a high-voltage acquisition module 9 in the high-voltage box, CAN acquire the voltage of a battery end, the voltage HV+1 and the current I1 of the input end of a driving motor and the current I2 of the output end of a towed motor in real time, combines other acquired data of a battery pack, uploads the acquired data to a CAN network, is positioned on an upper computer of the CAN network, and obtains an efficiency curve of the driving motor through software analysis and calculation after receiving signals. The utility model realizes the function of the power analysis instrument through the discrete cooperation of multiple devices, thereby realizing substitution, reducing the cost and saving the resources.
This high-pressure tank is used for the electric motor car, adopts airtight waterproof construction, in order to prevent the inside fever of box 1 causes box 1 inflation, box 1 is provided with relief valve 11, in addition, for safety, prevents the electric leakage, box 1 is provided with ground connection 10.
The high-voltage line of the embodiment is provided with a first power supply main switch contactor 12 and a second contactor 13 for controlling the power supply of the driving motor, and in addition, for the safety of the driving motor, the second contactor 13 is connected with a pre-charging module 14 in parallel.
Similarly, for the safety of electricity consumption of the driving motor and the towed motor, the first fuse 15 is connected in series with the positive interface 4 of the output 1, and the second fuse 16 is connected in series with the positive interface 6 of the output 2.
Finally, it should be noted that the foregoing embodiments are merely for illustrating the technical solution of the present utility model, and the front, rear, left, right, upper, middle, lower, etc. directions adopted for the description of the technical solution are set based on the drawings, not limiting the scope of the present utility model, although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (6)
1. The utility model provides a multichannel electric current, voltage are gathered with holding in palm experiment bench high voltage box which characterized in that: the power source positive interface and the power source negative interface are connected with the battery pack, the output 1 positive interface and the output 1 negative interface are connected with the driving motor, the output 2 positive interface and the output 2 negative interface are connected with the towed motor, and the low-voltage signal interface is used for providing power source and CAN network communication signal transmission for the high-voltage acquisition module; the high-voltage acquisition module comprises battery pack terminal voltage acquisition HV+ and HV-, output 1 positive interface voltage acquisition HV+1, output 1 positive interface current acquisition I1 and output 2 positive interface current acquisition I2.
2. The multi-path current and voltage collection split-mount laboratory bench high-voltage box according to claim 1, wherein: the box is waterproof airtight box, the box still is provided with ground connection and relief valve.
3. The multi-path current and voltage collection split-mount laboratory bench high-voltage box according to claim 1, wherein: the low voltage signal interface may provide 24V dc power.
4. The multi-path current and voltage collection split-mount laboratory bench high-voltage box according to claim 1, wherein: the main circuit which is connected with the battery pack is provided with a first contactor, the specification of the first contactor is 400A/750V, and remote automatic control and manual control can be realized.
5. The multi-path current and voltage collection split-mount laboratory bench high-voltage box according to claim 1, wherein: and the output 1 positive interface is provided with a contactor II and a pre-charging module connected with the contactor II in parallel corresponding to the circuit.
6. The multi-path current and voltage collection split-mount laboratory bench high-voltage box according to claim 1, wherein: the output 1 positive interface is connected with a first fuse in series, the output 2 positive interface is connected with a second fuse in series, and the specifications of the first fuse and the second fuse are 350A/750V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320842783.2U CN219957647U (en) | 2023-04-17 | 2023-04-17 | Opposite-support experiment bench high-voltage box for collecting multipath current and voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320842783.2U CN219957647U (en) | 2023-04-17 | 2023-04-17 | Opposite-support experiment bench high-voltage box for collecting multipath current and voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219957647U true CN219957647U (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320842783.2U Active CN219957647U (en) | 2023-04-17 | 2023-04-17 | Opposite-support experiment bench high-voltage box for collecting multipath current and voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219957647U (en) |
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2023
- 2023-04-17 CN CN202320842783.2U patent/CN219957647U/en active Active
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