CN102882384A - Surface-mounted metal oxide semiconductor field effect transistor (MOSFET) inversion module technology for power of motor controller of new energy automobile - Google Patents

Abstract

The invention relates to a new energy vehicle motor controller power patch MOSFET inverter module technology, which is based on an aluminum substrate and consists of a single tube of IGBT or MOSFET packaged in a patch, and all connecting lines pass through the aluminum substrate. Copper-coated wires printed on the substrate without other auxiliary wiring, a drive balance circuit is set on the IGBT or MOSFET single tube, the drive balance circuit is set on an independent PCB board, and the drive balance circuit with the drive balance circuit The PCB board is set on the IGBT or MOSFET single tube, and the driving balance circuit is separately made on an independent PCB board, and set on the IGBT or MOSFET single tube, so that the driver of each tube is close to itself , the consistency is very good, and the single tube fits closely with each other, reducing space and cost.

Description

New energy vehicle motor controller power patch MOSFET inverter module technology

technical field

The invention belongs to a novel power module integration method, and in particular relates to a new energy vehicle motor controller power patch MOSFET inverter module technology.

Background technique

At present, the existing power modules in the market are mainly monopolized by some foreign companies. They are mainly integrated on a ceramic surface in units of chips, and the cost is relatively high.

However, some other related companies in China simply tile the IGBT (or MOSFET) modules together, occupying a large space, and the actual use is limited. Moreover, their driving balance circuit is also made on the aluminum substrate, so that the parallel connection The consistency of MOSFET drive is difficult to guarantee.

Contents of the invention

In view of this, the purpose of the present invention is to provide a new energy vehicle motor controller power patch MOSFET inverter module technology that reduces processing difficulty and ensures the consistency of parallel MOSFET drive.

The present invention is realized through the following technical solutions: a new energy vehicle motor controller power patch MOSFET inverter module technology, which is based on an aluminum substrate and consists of a single tube of IGBT or MOSFET packaged in a patch, all connections The wirings all pass through the copper-coated wires printed on the aluminum substrate, without other auxiliary wirings, and a driving balance circuit is set on the single tube of the IGBT or MOSFET, and the driving balancing circuit is set on an independent PCB board, The PCB board with the driving balance circuit is sleeved on the single tube of the IGBT or MOSFET.

Further, the individual IGBTs or MOSFET single tubes are closely arranged and welded on the pads on the aluminum substrate.

Further, square holes are provided on the PCB, and the number, position and size of the square holes match the single tube of the IGBT or MOSFET.

Further, the busbar input pads and the three-phase output pads of the aluminum substrate are provided with connecting copper columns.

The advantage of the present invention is that: the driving balance circuit is separately built on an independent PCB board, and set on the single tube of the IGBT or MOSFET, so that the driving of each tube is close to itself, the consistency is very good, and the single tube The tight fit between the tube and the single tube reduces the space and reduces the cost.

Description of drawings

Fig. 1 is a schematic diagram of the power module structure based on the power chip MOSFET inverter module technology of the new energy vehicle motor controller of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Please refer to Fig. 1. Fig. 1 is a schematic structural diagram of a power module based on the power chip MOSFET inverter module technology of a new energy vehicle motor controller according to the present invention.

The new energy vehicle motor controller power patch MOSFET inverter module technology is based on an aluminum substrate 1, and according to specific product requirements, it is composed of a chip-packaged IGBT or MOSFET single tube 3, and all connecting lines are Through the copper-coated wires printed on the aluminum substrate 1, without other auxiliary wiring, a driving balance circuit is set on the IGBT or MOSFET single tube 3, and the driving balance circuit is set on an independent PCB board 4, The PCB board 4 with the driving balance circuit is sleeved on the IGBT or MOSFET single tube 3 .

The IGBTs or MOSFET single tubes 3 are closely arranged and welded on the pads on the aluminum substrate 1. The PCB board 4 is provided with square holes 5. The number, position and size of the square holes 5 are the same as The IGBT or MOSFET single tube 3 is matched, and the bus bar input pad and the three-phase output pad of the aluminum substrate 1 are provided with connecting copper columns 2 .

To sum up: the drive balance circuit is made separately on an independent PCB board, and set on the IGBT or MOSFET single tube, so that the drive of each tube is close to itself, the consistency is very good, and the single tube Close fit with the single tube, reducing space and cost.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (4)

1. new-energy automobile electric machine controller power paster MOSFET inversion module technology, be based on the aluminium base, IGBT or MOSFET single tube by the paster encapsulation form, it is characterized in that, all connect all deposited copper conductors by printing on the described aluminium base of cabling, there are not other attached cablings, at described IGBT or MOSFET single tube the driven equilibrium circuit is set, described driven equilibrium circuit is arranged on independently on the pcb board, and described pcb board with the driven equilibrium circuit is enclosed within on described IGBT or the MOSFET single tube.

2. new-energy automobile electric machine controller power paster MOSFET inversion module technology according to claim 1 is characterized in that, close-packed arrays between described each IGBT or each MOSFET, and be welded on the pad on the aluminium base.

3. new-energy automobile electric machine controller power paster MOSFET inversion module technology according to claim 1 is characterized in that, described pcb board is provided with square hole, and described square hole quantity, position and size and described IGBT or MOSFET are complementary.

4. new-energy automobile electric machine controller power paster MOSFET inversion module technology according to claim 1 is characterized in that, the bus input pad of described aluminium base and three-phase o pads are provided with and connect the copper post.

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