CN218183680U - Power module insulation mounting structure - Google Patents
Power module insulation mounting structure Download PDFInfo
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- CN218183680U CN218183680U CN202221242330.8U CN202221242330U CN218183680U CN 218183680 U CN218183680 U CN 218183680U CN 202221242330 U CN202221242330 U CN 202221242330U CN 218183680 U CN218183680 U CN 218183680U
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Abstract
The utility model discloses a power module insulation mounting structure, which comprises a metal concave shell, a top plate, a bottom insulation plate, a power unit structural member, a front insulation plate and a rear insulation plate; an insulating plate is superposed on the upper surface of the bottom surface of the concave shell; the power module, the insulating plate and the bottom surface of the concave shell are fixedly connected through a hexagonal insulating column which is integrally injected; the upper internal thread and the lower internal thread of the hexagonal insulating column are not communicated; during connection, the hexagonal insulating column penetrates through the through hole, is fixedly connected to the power module through the internal thread at the upper end of the hexagonal insulating column, and is fixedly connected to the bottom surface of the concave shell through the internal thread at the lower end of the hexagonal insulating column; the front insulating plate and the rear insulating plate are respectively arranged at the front end and the rear end of the concave shell; the top plate is arranged on the top surface of the concave shell; the top plate is not in contact with the power module; the front insulating plate and the rear insulating plate are both provided with vent holes. The utility model discloses a can protect naked electric leakage ware, prevent the emergence of electric shock accident to guarantee insulating reliability and size precision's stability.
Description
Technical Field
The utility model relates to an insulating installation technical field of power module in the relevant equipment of track traffic trade, concretely relates to power module insulation mounting structure.
Background
In the rail transit vehicle electrical equipment, because the rail transit vehicle electrical equipment has larger heat productivity during operation, the rail transit vehicle electrical equipment has higher heat dissipation requirements on a power unit in order to ensure the stability of operation. The power unit module is a core part of equipment, and in the face of complexity of a rail transit system and uncertainty of environment, when the core part fails, the rest parts are easily damaged. In order to avoid the situation, firstly, insulation treatment needs to be carried out on the whole power unit, insulation treatment of a plurality of devices is carried out on the outside of the power module, the insulation treatment is unreliable, and the precision cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
1. The technical problem to be solved is as follows:
to the technical problem, the utility model provides a small, the quality is light to can the effective control size power unit's insulation system, can realize the insulating installation to power module.
2. The technical scheme is as follows:
a power module insulation mounting structure comprises a concave shell, a top plate, a bottom insulation plate, a power module, a front insulation plate and a rear insulation plate; the method is characterized in that: the concave shell is a metal shell; a bottom insulating plate is superposed on the upper surface of the bottom surface of the concave shell; the bottom insulating plate and the side wall of the concave shell form a power module mounting space; the power module, the bottom insulating plate and the bottom surface of the concave shell are fixedly connected through a hexagonal insulating column; the hexagonal insulating column is a columnar insulator formed by integral injection molding, internal threads are arranged on the upper surface and the lower surface of the hexagonal insulating column, and the upper internal thread and the lower internal thread are not communicated; the surface of the bottom insulating plate is provided with a through hole which is suitable for the outer wall of the hexagonal insulating column in shape; during connection, the hexagonal insulating column penetrates through the through hole, is fixedly connected to the power module through the internal thread at the upper end of the hexagonal insulating column, and is fixedly connected to the bottom surface of the concave shell through the internal thread at the lower end of the hexagonal insulating column; the front insulating plate and the rear insulating plate are respectively arranged at the front end and the rear end of the concave shell; the top plate is arranged on the top surface of the concave shell; the top plate is not in contact with the power module; the front insulating plate and the rear insulating plate are both provided with vent holes.
Further, the power unit comprises a composite busbar, an IGBT module, a capacitor and a radiator; the radiator is arranged on the upper surface of the bottom insulating plate; the radiator, the front insulating plate and the rear insulating plate form a radiating channel; the capacitor and the IGBT module are arranged on the surface of the radiator in parallel; the composite busbar is arranged on the upper surfaces of the capacitor and the IGBT module.
Furthermore, the inner side wall of the concave shell and the inner side of the top plate are both stuck with insulating paper.
Furthermore, the left side wall and the right side wall of the concave shell are respectively provided with an incoming line insulating sleeve and an outgoing line insulating sleeve.
Further, the air conditioner is provided with a fan,
3. has the advantages that:
the utility model discloses an insulating mounting structure of power module adopts the isolated power unit of an insulation board for the bottom, and the air gap is utilized at the top, and the outside is assembled into the box with metal component, can protect naked electric leakage ware, prevents the emergence of electric shock accident to guarantee insulating reliability and size precision's stability. The structure is convenient to disassemble, and the power module and the box body can be completely separated to facilitate installation and maintenance.
Drawings
FIG. 1 is an overall structure diagram of the present invention;
fig. 2 is an exploded view of the medium power module according to the present invention;
fig. 3 is a schematic view illustrating the installation of the hexagonal insulating column according to the present invention;
fig. 4 is a schematic diagram of the power module according to the present invention after being installed;
fig. 5 is an external view after the installation of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, a power module insulation mounting structure includes a concave housing 1, a top plate 2, a bottom insulation plate 3, a power module 4, a front insulation plate 5, and a rear insulation plate 6; the method is characterized in that: the concave shell is a metal shell; a bottom insulating plate is superposed on the upper surface of the bottom surface of the concave shell; the bottom insulating plate and the side wall of the concave shell form a power module mounting space; the power module, the bottom insulating plate and the bottom surface of the concave shell are fixedly connected through a hexagonal insulating column 7; the hexagonal insulating column is a columnar insulator formed by integral injection molding, internal threads are arranged on the upper surface and the lower surface of the hexagonal insulating column, and the upper internal thread and the lower internal thread are not communicated; the surface of the bottom insulating plate is provided with a through hole 8 which is suitable for the outer wall of the hexagonal insulating column in shape; during connection, the hexagonal insulating column penetrates through the through hole, is fixedly connected to the power module through the internal thread at the upper end of the hexagonal insulating column, and is fixedly connected to the bottom surface of the concave shell through the internal thread at the lower end of the hexagonal insulating column; the front insulating plate and the rear insulating plate are respectively arranged at the front end and the rear end of the concave shell; the top plate is arranged on the top surface of the concave shell; the top plate is not in contact with the power module; the front insulating plate and the rear insulating plate are both provided with vent holes 9.
Further, the power unit includes a composite busbar 41, an IGBT module 42, a capacitor 43, and a heat sink 44; the radiator is arranged on the upper surface of the bottom insulating plate; the radiator, the front insulating plate and the rear insulating plate form a radiating channel; the capacitor and the IGBT module are arranged on the surface of the radiator in parallel; the composite busbar is arranged on the upper surfaces of the capacitor and the IGBT module.
Furthermore, the inner side wall of the concave shell and the inner side of the top plate are both pasted with insulating paper.
Furthermore, the left side wall and the right side wall of the concave shell are respectively provided with an incoming line insulating sleeve and an outgoing line insulating sleeve.
The specific embodiment is as follows:
the installation step:
s1, screwing a hexagonal insulating column into a bottom plate of a concave shell to press and rivet a screw, wherein M5 internal threads are arranged at two ends of the hexagonal insulating column, and the middle part of the hexagonal insulating column is separated by a solid body; then inserting the through hole position of the bottom insulating plate into the assembled hexagonal insulating column, namely assembling the assembly 1;
s2, assembling the composite busbar, the IGBT module, the radiator and the capacitor into a power module mounting space, coating heat-conducting silicone grease on the IGBT module and mounting the IGBT module on the surface of the radiator to form an assembly 2;
and S3, aligning the inner side mounting hole of the power unit component of the assembly 2 with the threaded hole of the hexagonal insulation column of the assembly 1, screwing the power unit component with the threaded hole of the hexagonal insulation column of the assembly 1, then placing the power unit component on the assembly 1, aligning the holes, screwing the power unit component with the threaded hole of the hexagonal insulation column, and assembling the power unit component as shown in the figure 4 after the assembly is completed, namely assembling the assembly 12.
S4: and (5) mounting the top plate, the front insulating plate and the rear insulating plate, namely completing assembly.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (4)
1. A power module insulation mounting structure comprises a concave shell, a top plate, a bottom insulation plate, a power module, a front insulation plate and a rear insulation plate; the method is characterized in that: the concave shell is a metal shell; a bottom insulating plate is superposed on the upper surface of the bottom surface of the concave shell; the bottom insulating plate and the side wall of the concave shell form a power module mounting space; the power module, the insulating plate and the bottom surface of the concave shell are fixedly connected through a hexagonal insulating column; the hexagonal insulating column is a columnar insulator formed by integral injection molding, internal threads are arranged on the upper surface and the lower surface of the hexagonal insulating column, and the upper internal thread and the lower internal thread are not communicated; the surface of the bottom insulating plate is provided with a through hole which is suitable for the outer wall of the hexagonal insulating column in shape; during connection, the hexagonal insulating column penetrates through the through hole, is fixedly connected to the power module through the internal thread at the upper end of the hexagonal insulating column, and is fixedly connected to the bottom surface of the concave shell through the internal thread at the lower end of the hexagonal insulating column; the front insulating plate and the rear insulating plate are respectively arranged at the front end and the rear end of the concave shell; the top plate is arranged on the top surface of the concave shell; the top plate is not in contact with the power module; the front insulating plate and the rear insulating plate are both provided with vent holes.
2. The insulative mounting structure of power module as claimed in claim 1, wherein: the power module comprises a composite busbar, an IGBT module, a capacitor and a radiator; the radiator is arranged on the upper surface of the bottom insulating plate; the radiator, the front insulating plate and the rear insulating plate form a radiating channel; the capacitor and the IGBT module are arranged on the surface of the radiator in parallel; the composite busbar is arranged on the upper surfaces of the capacitor and the IGBT module.
3. The insulative mounting structure of power module as claimed in claim 1, wherein: and the inner side wall of the concave shell and the inner side of the top plate are both stuck with insulating paper.
4. The insulative mounting structure of power module as claimed in claim 1, wherein: the left side wall and the right side wall of the concave shell are respectively provided with an incoming line insulating sleeve and an outgoing line insulating sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221242330.8U CN218183680U (en) | 2022-05-23 | 2022-05-23 | Power module insulation mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221242330.8U CN218183680U (en) | 2022-05-23 | 2022-05-23 | Power module insulation mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218183680U true CN218183680U (en) | 2022-12-30 |
Family
ID=84610260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221242330.8U Active CN218183680U (en) | 2022-05-23 | 2022-05-23 | Power module insulation mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218183680U (en) |
-
2022
- 2022-05-23 CN CN202221242330.8U patent/CN218183680U/en active Active
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