CN212752173U

CN212752173U - Plug-and-play IGBT drive board of new energy automobile

Info

Publication number: CN212752173U
Application number: CN202021545852.6U
Authority: CN
Inventors: 彭静; 袁成保; 郑春阳
Original assignee: Zhixin Control System Co ltd
Current assignee: Zhixin Control System Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-03-19
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a plug and play IGBT drive plate of new energy automobile, including three independent single-phase IGBT drive plate, every the single-phase IGBT drive plate all is equipped with the connector that is used for being connected with the control panel, single-phase IGBT drive plate includes power supply circuit, upper bridge driver chip, lower bridge driver chip, high-pressure sampling circuit and IGBT temperature resistance, upper bridge driver chip and lower bridge driver chip's output all is connected with the peripheral circuit of drive. The utility model discloses an adopt single-phase independent driven design, make the utility model discloses can adapt to the controller of multiple difference, strengthen its commonality and reduce cost of maintenance simultaneously.

Description

Plug-and-play IGBT drive board of new energy automobile

Technical Field

The utility model relates to a new energy automobile technical field, concretely relates to new energy automobile plug and play IGBT drive plate.

Background

With the continuous development of the new energy automobile industry, the motor controller is used as a key part of the new energy automobile, and the cost of the motor controller influences the industrialization process of the new energy automobile under the condition of meeting the function safety. In the motor controller, a driving board is used as an important intermediate link between a control system and a power switching device and plays important roles of receiving control instructions of the control system, transmitting the control instructions, ensuring that an IGBT (insulated gate bipolar translator) of the switching device executes correct switching action, protecting the switching device and feeding back the working state of the IGBT.

At present, a motor controller generally adopts a mode of joint debugging of a control board and a drive board, and under the condition of design change, the drive board opposite to the motor controller needs to be debugged again to ensure that the motor controller is normally used in function, so that the debugging cost is increased, and the flexibility is poor; the existing driving plate adopts three-phase driving circuit integration, which can cause the reliability reduction and the high maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of above-mentioned background art, provide a new energy automobile plug and play IGBT drive plate.

In order to achieve the above object, the utility model provides a plug-and-play IGBT drive board of new energy automobile, including three independent single-phase IGBT drive boards, each single-phase IGBT drive board all is equipped with the connector that is used for being connected with the control panel, single-phase IGBT drive board includes power supply circuit, upper bridge driver chip, lower bridge driver chip, high pressure sampling circuit and IGBT temperature resistance, the input of power supply circuit is used for being connected with the control panel through the connector, the PWM signal input part of upper bridge driver chip and lower bridge driver chip all is used for being connected with the control panel through the connector, the state feedback signal output part of upper bridge driver chip and lower bridge driver chip all is used for being connected with the control panel through the connector, the power input part of upper bridge driver chip and lower bridge driver chip all is connected with power supply circuit, the output part of upper bridge driver chip and lower bridge driver chip all is connected with drive peripheral circuit, the high-voltage sampling circuit and the IGBT temperature resistor are connected with the control panel through connectors.

Preferably, the driving peripheral circuit includes a totem-pole circuit composed of transistors T603 and T604.

Preferably, the power circuit includes an IR2085S power chip.

Preferably, the upper bridge driver chip and the lower bridge driver chip are both 1ED020I12FA2 single-channel driver chips.

The utility model provides a beneficial effect that technical scheme brought is:

the utility model discloses an adopt single-phase independent driven design, make the utility model discloses can adapt to the controller of multiple difference, strengthen its commonality and reduce cost of maintenance simultaneously.

Drawings

FIG. 1 is a schematic structural diagram of a prior art driving board connected to a control board;

FIG. 2 is a schematic structural view of the utility model after the control board is connected;

FIG. 3 is a block diagram of a circuit connection structure of a single-phase IGBT drive board;

fig. 4 is a circuit diagram of a driving peripheral circuit.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 2 and 3, the plug-and-play IGBT driver board for a new energy automobile comprises three independent single-phase IGBT driver boards, each single-phase IGBT driver board is provided with a connector for connecting with a control board, each single-phase IGBT driver board comprises a power circuit, an upper bridge driver chip, a lower bridge driver chip, a high-voltage sampling circuit and an IGBT temperature resistor, an input end of the power circuit is connected with the control board through the connector, the power circuit comprises an IR2085S power chip, the upper bridge driver chip and the lower bridge driver chip are both 1ED020I12FA2 single-circuit driver chips, PWM signal input ends of the upper bridge driver chip and the lower bridge driver chip are both connected with the control board through the connectors, state feedback signal output ends of the upper bridge driver chip and the lower bridge driver chip are both connected with the control board through the connectors, and power input ends of the upper bridge driver chip and the lower bridge driver chip are both connected with the power circuit, the output ends of the upper bridge driving chip and the lower bridge driving chip are connected with a driving peripheral circuit, and the high-voltage sampling circuit and the IGBT temperature resistor are connected with the control panel through connectors.

As shown in fig. 4, the driving peripheral circuit includes a totem pole circuit composed of transistors T603 and T604, bases of the transistors T603 and T604 are both connected to one end of a resistor R618, an emitter of the transistor T603 is connected to one end of a resistor R628 through 4 driving resistors (R619 to R622) connected in parallel, an emitter of the transistor T604 is connected to one end of the resistor R628 through 4 driving resistors (R623 to R627) connected in parallel, a collector of the transistor T603 is connected to a +15V power supply, and a collector of the transistor T604 is grounded.

The utility model discloses a concrete theory of operation does:

the power supply circuit provides driving voltage for the driving circuit, and the upper bridge driving chip and the lower bridge driving chip provide electric isolation and driving capability for the driving circuit. The driving peripheral circuit increases the driving capability for the driving circuit, and ensures the driving reliability. The high-voltage sampling circuit feeds sampling data back to the control panel to monitor the bus voltage in real time. And the IGBT temperature resistor feeds the sampling data back to the control board for monitoring the working temperature of the IGBT.

Other parts not described in detail are known in the art.

Claims

1. The utility model provides a new energy automobile plug and play IGBT drive plate which characterized in that: comprises three independent single-phase IGBT drive boards, each single-phase IGBT drive board is provided with a connector used for being connected with a control board, the single-phase IGBT driving board comprises a power circuit, an upper bridge driving chip, a lower bridge driving chip, a high-voltage sampling circuit and an IGBT temperature resistor, the input end of the power circuit is connected with the control panel through a connector, the PWM signal input ends of the upper bridge driving chip and the lower bridge driving chip are connected with the control panel through connectors, the state feedback signal output ends of the upper bridge driving chip and the lower bridge driving chip are connected with the control panel through connectors, the power input ends of the upper bridge driving chip and the lower bridge driving chip are both connected with a power circuit, the output ends of the upper bridge driving chip and the lower bridge driving chip are both connected with a driving peripheral circuit, the high-voltage sampling circuit and the IGBT temperature resistor are connected with the control panel through connectors.

2. The plug and play IGBT drive board of the new energy automobile according to claim 1, characterized in that: the driving peripheral circuit comprises a totem-pole circuit consisting of triodes T603 and T604.

3. The plug and play IGBT drive board of the new energy automobile according to claim 1, characterized in that: the power supply circuit includes an IR2085S power supply chip.

4. The plug and play IGBT drive board of the new energy automobile according to claim 1, characterized in that: the upper bridge driving chip and the lower bridge driving chip are both 1ED020I12FA2 single-path driving chips.