CN209881601U

CN209881601U - IGBT module and drive circuit board assembly structure of motor

Info

Publication number: CN209881601U
Application number: CN201921075747.8U
Authority: CN
Inventors: 吴必瑞
Original assignee: Ningde Normal University
Current assignee: Ningde Normal University
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2019-12-31
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a IGBT module and drive circuit board assembly structure of motor relates to the motor field, including fender subassembly, IGBT module and drive circuit board, the fender subassembly is through first screw and IGBT module fixed connection, the drive circuit board welding is at the top of fender subassembly, the fender subassembly comprises guard plate, copper foil and protection network, the protection net passes through second screw and guard plate fixed connection, copper foil fixed mounting is on the top surface of guard plate, the mounting groove has been seted up to the bottom surface of guard plate, the right side fixed mounting of mounting groove has fan set. The utility model discloses a set up the protection plate subassembly, can dispel the heat fast to the IGBT module, avoid the big high temperature of operating current to lead to the IGBT module to damage, guaranteed its normal work, can form shielding layer one at IGBT module and drive circuit board, play fine shielding effect, the interference killing feature is strong, guarantees both normal work.

Description

IGBT module and drive circuit board assembly structure of motor

Technical Field

The utility model relates to a motor field, in particular to IGBT module and driving circuit board assembly structure of motor.

Background

The traditional IGBT module and driving circuit board assembly structure has two modes, the first mode is that the driving circuit board is connected with the IGBT module through a lead, and the structure has the following defects that the signal transmission distance is long through the lead connection, the anti-interference capability is poor, and the normal work of the IGBT module is influenced. The other mode is that the drive circuit board is directly welded on the IGBT module, and the IGBT module works at high temperature due to large working current of the IGBT module, so that the IGBT module is easy to damage, the normal work of the drive circuit board is influenced, the drive circuit board is subjected to electromagnetic interference, the output signal of the drive circuit board is influenced, and the normal work of the IGBT module and the drive circuit board is influenced.

Therefore, it is necessary to provide an assembly structure of the IGBT module and the driving circuit board of the motor to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a IGBT module and drive circuit board assembly structure of motor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an IGBT module and driving circuit board assembly structure of a motor comprises a protection plate assembly, an IGBT module and a driving circuit board, wherein the protection plate assembly is fixedly connected with the IGBT module through a first screw, the driving circuit board is welded at the top of the protection plate assembly, the protection plate assembly comprises a protection plate, a copper foil and a protection net, the protection net is fixedly connected with the protection plate through a second screw, and the copper foil is fixedly arranged on the top surface of the protection plate;

the mounting groove has been seted up to the bottom surface of guard plate, the right side fixed mounting of mounting groove has the fan group, the inside top side fixed mounting of mounting groove has the coolant liquid case, the inside bottom side fixed mounting of mounting groove has the backward flow case, the right side of coolant liquid case is provided with micro-water pump and power, fixedly connected with cooling tube between coolant liquid case and the backward flow case, be connected with the circulating pipe between backward flow case and the micro-water pump, the play liquid end fixed mounting of backward flow case has first total pipe, micro-water pump's inlet fixed mounting has the second house steward.

Optionally, first screw holes are formed in four corners of the bottom surface of the protection plate, and the first screw holes and the second screws are correspondingly arranged.

Optionally, the two sides of the protection plate are provided with symmetrically arranged second screw holes, and the second screw holes are arranged corresponding to the first screws.

Optionally, the fan set is composed of a plurality of fans;

the circulation pipe is provided in plurality.

Optionally, one end of the circulation pipe is fixedly connected with a first main pipe on the return tank, and the other end of the circulation pipe is fixedly connected with a second main pipe on the micro-water pump.

Optionally, the liquid outlet end of the micro water pump is fixedly connected with the cooling liquid tank.

Optionally, the power is connected with the micro water pump through a first wire, the power is connected with the fan set through a second wire, the second wire and the third wire on the power are both embedded in the protection plate, and the third wire on the power is an external wire.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a set up the protection plate subassembly, can dispel the heat fast to the IGBT module, avoid the big high temperature of operating current to lead to the IGBT module to damage, guaranteed its normal work.

2. The utility model discloses can form shielding layer one at IGBT module and dirver circuit board, play fine shielding effect, the interference killing feature is strong, guarantees both normal workings.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the utility model discloses protection plate subassembly structure schematic diagram.

Fig. 3 is a schematic view of the bottom surface structure of the protection plate of the present invention.

In the figure: the device comprises a protection plate assembly 1, an IGBT module 2, a driving circuit board 3, a protection plate 4, a copper foil 5, a protective screen 6, a first screw hole 7, a second screw hole 8, a mounting groove 9, a fan set 10, a cooling liquid tank 11, a micro water pump 12, a power supply 13, a return tank 14, a cooling pipe 15, a circulating pipe 16, a first main pipe 17 and a second main pipe 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The utility model provides a shown in fig. 1-3 IGBT module and drive circuit board assembly structure of motor, including protection plate subassembly 1, IGBT module 2 and drive circuit board 3, by fig. 1 and fig. 2 show, protection plate subassembly 1 is through first screw and IGBT module 2 fixed connection, drive circuit board 3 welds the top at protection plate subassembly 1, protection plate subassembly 1 comprises guard plate 4, copper foil 5 and protection network 6, protection network 6 passes through second screw and guard plate 4 fixed connection, copper foil 5 is fixed mounting on the top surface of guard plate 4, wherein copper foil 5 forms a shielding layer at IGBT module 2 and drive circuit board 3, play fine shielding effect, the interference killing feature is strong, guarantee that both normally work;

as shown in fig. 3, four corners of the bottom surface of the protection plate 4 are respectively provided with a first screw hole 7, the first screw holes 7 and second screws are correspondingly arranged, two sides of the protection plate 4 are respectively provided with a second screw hole 8 which are symmetrically arranged, the second screw holes 8 are correspondingly arranged with the first screws, the bottom surface of the protection plate 4 is provided with a mounting groove 9, the right side of the mounting groove 9 is fixedly provided with a fan set 10, the fan set 10 is composed of a plurality of fans, and accelerates the airflow flow near the IGBT module 2 to dissipate heat of the IGBT module 2, the top side inside the mounting groove 9 is fixedly provided with a cooling liquid tank 11, the bottom side inside the mounting groove 9 is fixedly provided with a return tank 14, the right side of the cooling liquid tank 11 is provided with a micro water pump 12 and a power supply 13, a cooling pipe 15 is fixedly connected between the cooling liquid tank 11 and the return tank 14, wherein the cooling pipe 15 can accelerate the heat dissipation and the, the circulating pipe 16 is provided with a plurality of circulating pipes 16, as the circulating pipe 16 is close to the fan set 10, the fan set 10 can radiate and cool the liquid in the circulating pipe 16 when in work, the plurality of circulating pipes 16 are provided, the radiating area is increased, a first main pipe 17 is fixedly arranged at the liquid outlet end of the return tank 14, a second main pipe 18 is fixedly arranged at the liquid inlet of the micro-water pump 12, one end of the circulating pipe 16 is fixedly connected with the first main pipe 17 on the return tank 14, the other end of the circulating pipe 16 is fixedly connected with the second main pipe 18 on the micro-water pump 12, the liquid outlet end of the micro-water pump 12 is fixedly connected with the cooling liquid tank 11, the micro-water pump 12 can pump the cooling liquid flowing back in the return tank 14 into the cooling liquid tank 11, the power supply 13 is connected with the micro-water pump 12 through a first lead wire, the power supply 13 is connected with the fan set 10, the third wire of the power supply 13 is an external wire.

The utility model discloses the theory of operation:

when the electric fan is used, a power transmission wire in a third lead external connection machine on a power supply 13 is connected with an electric machine, the fan set 10 works to accelerate the air flow near the IGBT module 2 to flow, the IGBT module 2 is cooled, the cooling pipe 15 can accelerate the heat dissipation and cooling of the IGBT module 2, the micro-water pump 12 pumps cooling liquid flowing back in the return tank 14 into the cooling liquid tank 11, because the circulating pipe 16 is close to the fan set 10, the fan set 10 simultaneously dissipates and cools liquid in the circulating pipe 16, the design of the circulating pipes 16 increases the heat dissipation area, so that the liquid cooling in the circulating pipe 16 is more efficient, the copper foil 5 forms a shielding layer between the IGBT module 2 and the driving circuit board 3, the good shielding effect is achieved, the anti-interference capability is strong, and the normal work of the IGBT module 2 and the.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a IGBT module and dirver circuit board assembly structure of motor, includes protection plate subassembly (1), IGBT module (2) and dirver circuit board (3), its characterized in that: the protection plate assembly (1) is fixedly connected with the IGBT module (2) through a first screw, the driving circuit board (3) is welded at the top of the protection plate assembly (1), the protection plate assembly (1) is composed of a protection plate (4), a copper foil (5) and a protection net (6), the protection net (6) is fixedly connected with the protection plate (4) through a second screw, and the copper foil (5) is fixedly installed on the top surface of the protection plate (4);

mounting groove (9) have been seted up to the bottom surface of guard plate (4), the right side fixed mounting of mounting groove (9) has fan group (10), the inside top side fixed mounting of mounting groove (9) has coolant liquid case (11), the inside bottom side fixed mounting of mounting groove (9) has backward flow case (14), the right side of coolant liquid case (11) is provided with micro-pump (12) and power (13), fixedly connected with cooling tube (15) between coolant liquid case (11) and backward flow case (14), be connected with circulating pipe (16) between backward flow case (14) and micro-pump (12), the play liquid end fixed mounting of backward flow case (14) has first house steward (17), the inlet fixed mounting of micro-pump (12) has second house steward (18).

2. The structure of claim 1, wherein the structure comprises:

first screw (7) have all been seted up in the bottom surface four corners of guard plate (4), first screw (7) and second screw correspond the setting.

3. The structure of claim 1, wherein the structure comprises:

the two sides of the protection plate (4) are provided with second screw holes (8) which are symmetrically arranged, and the second screw holes (8) are arranged corresponding to the first screws.

4. The structure of claim 1, wherein the structure comprises:

the fan set (10) is composed of a plurality of fans;

the circulation pipe (16) is provided in plurality.

5. The structure of claim 1, wherein the structure comprises:

one end of the circulating pipe (16) is fixedly connected with a first main pipe (17) on the return tank (14), and the other end of the circulating pipe (16) is fixedly connected with a second main pipe (18) on the micro-water pump (12).

6. The structure of claim 1, wherein the structure comprises:

the liquid outlet end of the micro water pump (12) is fixedly connected with the cooling liquid tank (11).

7. The structure of claim 1, wherein the structure comprises:

the power (13) is connected with the micro water pump (12) through a first wire, the power (13) is connected with the fan set (10) through a second wire, the second wire and a third wire on the power (13) are embedded in the protection plate (4), and the third wire on the power (13) is an external wire.