CN217388517U - High-performance frequency converter - Google Patents
High-performance frequency converter Download PDFInfo
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- CN217388517U CN217388517U CN202220169334.1U CN202220169334U CN217388517U CN 217388517 U CN217388517 U CN 217388517U CN 202220169334 U CN202220169334 U CN 202220169334U CN 217388517 U CN217388517 U CN 217388517U
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- grounding
- support
- card
- radiator
- stud
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Abstract
The utility model relates to a high performance converter, include radiator, casing and expansion card support by lower to upper range upon range of fixed placing, be provided with electric capacity board and drive plate between radiator and the casing, electric capacity board and the range upon range of fixing of drive plate are on the radiator, electric capacity board ground plane, drive plate ground plane and radiator electric connection, be provided with ground connection support and control panel between casing and the expansion card support, ground connection support and control panel are fixed on the casing, control panel ground plane and ground connection support electric connection, ground connection support and radiator electric connection, the expansion card shelf location is provided with PG card and communication card, PG joint stratum, communication joint stratum and ground connection support electric connection. The beneficial effects of the utility model are that: compared with the prior art, the frequency converter of the utility model has compact structure, is stacked up and down, and efficiently utilizes space; and effectively improve anti-interference performance, guaranteed the stable work of circuit.
Description
Technical Field
The utility model relates to a power electronics field, in particular to high performance converter.
Background
The frequency converter is an electric control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor. The existing frequency converter needs to be provided with control equipment in order to meet the requirements of some applications with high control requirements, or needs to be provided with communication equipment for synchronous communication in order to meet the requirements of some applications with multiple pieces of equipment matched together, and the equipment needs a PG card or a communication card when being connected with the frequency converter. However, when the frequency converter is connected to these devices, interference signals may occur in the application circuit of the frequency converter, including interference signals from the frequency converter to peripheral devices or interference signals from the peripheral devices to the frequency converter, which may cause unstable operation of the devices and even malfunction of the devices.
SUMMERY OF THE UTILITY MODEL
For overcoming the defect among the prior art, the utility model provides a high performance converter is realized through following technical scheme.
A high-performance frequency converter comprises a radiator, a shell and an expansion card support which are fixedly placed from bottom to top in a stacking mode, a capacitor plate and a driving plate are arranged between the radiator and the shell, the capacitor plate and the driving plate are fixedly mounted on the radiator in a stacking mode, a capacitor plate grounding layer is arranged on the capacitor plate, a driving plate grounding layer is arranged on the driving plate, the capacitor plate grounding layer, the driving plate grounding layer and the radiator are electrically connected, a grounding support and a control plate are arranged between the shell and the expansion card support, the grounding support and the control plate are fixed on the shell, a control plate grounding layer is arranged on the control plate, the control plate grounding layer is electrically connected with the grounding support, the grounding support is electrically connected with the radiator, a PG card and a communication card are mounted on the expansion card support, a PG card clamping ground layer is arranged on the PG card, and a communication card clamping ground layer is arranged on the communication card, PG joint stratum, communication joint stratum and ground connection support electric connection.
Furthermore, a first shaft column, a second shaft column and a third shaft column are arranged on the radiator, the grounding layer of the capacitor plate is electrically connected with the radiator through the first shaft column, the grounding layer of the drive plate is electrically connected with the radiator through the second shaft column, a copper stud is arranged between the radiator and the grounding support, and two ends of the copper stud are respectively electrically connected with the grounding support and the third shaft column, so that the grounding support is electrically connected with the radiator through the copper stud.
Further, an EMC circuit and a VDR circuit are arranged on the driving board.
Furthermore, a fourth axial column and a fifth axial column are further arranged on the radiator, the EMC circuit is electrically connected with the radiator through the fourth axial column, and the VDR circuit is electrically connected with the radiator through the fifth axial column.
Further, be provided with first spliced pole, second spliced pole and third spliced pole on the ground connection support, the ground connection support passes through first spliced pole and control panel ground plane electric connection, PG joint stratum passes through the second spliced pole and is connected with ground connection support, communication joint stratum passes through third spliced pole and ground connection support connection.
Furthermore, the grounding support is further provided with a wiring terminal, the wiring terminal is provided with a nut hole, and the nut hole is used for grounding a shielding cable for connecting the control panel, the PG card and the communication card with external equipment.
The utility model has the advantages that: compared with the prior art, the utility model discloses a converter compact structure, the range upon range of from top to bottom is placed, and the space is utilized to the high efficiency, through being provided with PG card and communication card, makes and to cooperate many equipment to carry out the communication, is connected condenser plate, drive plate, control panel, PG card and communication card and radiator ground connection, makes the converter effectively improve the interference killing feature, guarantees that the circuit is stable to be worked.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
fig. 2 is a schematic structural diagram of the grounding bracket of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples, which are only part of the examples of the present invention, and these examples are only used to explain the present invention, and do not limit the scope of the present invention.
As shown in fig. 1-2, a high performance frequency converter comprises a heat sink 1, a housing 4 and an expansion card bracket 8, wherein the heat sink 1, the housing 4 and the expansion card bracket 8 are fixedly arranged from bottom to top in a stacked manner, a capacitor plate 2 and a drive plate 3 are arranged between the heat sink 1 and the housing 4, the drive plate 3 is arranged above the capacitor plate 2, the capacitor plate 2 is fixed on the heat sink 1, the ground layer of the capacitor plate is electrically connected with the heat sink, the drive plate 3 is fixed on the heat sink 1, the ground layer is electrically connected with the heat sink, a ground bracket 6 and a control board 7 are arranged between the housing 4 and the expansion card bracket 8, the control board 7 is arranged above the ground bracket 6, the ground bracket 6 is fixed on the housing 4 and electrically connected with the heat sink 1, the control board 7 is fixed on the housing 4, the ground layer of the control board is electrically connected with the ground bracket 6, the expansion card bracket 8 is provided with a PG card 9 and a communication card 10, the PG card is clamped with the ground layer, The communication card ground layer is electrically connected with the grounding bracket 6.
The frequency converter is stacked up and down, so that the space is efficiently utilized, and the structure is compact. The control panel ground plane, PG joint ground plane, communication joint ground plane passes through ground support and radiator electric connection, ground support, the capacitor plate ground plane, drive plate ground plane and radiator electric connection, be provided with ground platform 16 on the radiator, ground platform 16 is connected with external equipment and ground, thereby make control panel ground plane, PG joint ground plane, communication joint ground plane, ground support ground plane, capacitor plate ground plane and drive plate ground plane ground connection, be favorable to making whole circuit system have a public reference zero potential, ground between each circuit does not have the potential difference, guarantee circuit system stable operation, and simultaneously, control panel ground plane, PG joint ground plane, communication joint ground plane passes through ground support ground connection, make the converter improve self interference killing feature and reduced external interference performance.
Further, a first shaft column 11, a second shaft column 12 and a third shaft column 13 are arranged on the radiator 1, the capacitor plate grounding layer is electrically connected with the radiator 1 through the first shaft column 11, the drive plate grounding layer is electrically connected with the radiator through the second shaft column 12, a copper stud 5 is arranged between the radiator 1 and the grounding support 6, and two ends of the copper stud 5 are respectively electrically connected with the grounding support 6 and the third shaft column 13, so that the grounding support 6 is electrically connected with the radiator 1 through the copper stud 5.
The capacitor plate grounding layer is connected with the radiator through the first shaft column 11 and grounded, the driving plate grounding layer is connected with the radiator through the second shaft column 12 and grounded, one end of the copper stud 5 is fixedly connected with the grounding support 6 through a bolt, and the other end of the copper stud 5 is fixedly connected with the third shaft column 13, so that the grounding support is connected with the radiator through the copper stud and grounded.
Further, an EMC circuit and a VDR circuit are provided on the driving board 3.
Further, a fourth stud 14 and a fifth stud 15 are further disposed on the heat sink 1, the EMC circuit is electrically connected to the heat sink 1 through the fourth stud 14, and the VDR circuit is electrically connected to the heat sink 1 through the fifth stud 15. EMC circuit passes through fourth pedestal ground connection, and VDR circuit passes through fifth pedestal ground connection, is favorable to making the converter also can stable work in ungrounded electric network system and high impedance ground connection electrical power generating system.
Further, be provided with first spliced pole 61, second spliced pole 62 and third spliced pole 63 on the ground connection support 6, the ground connection support passes through first spliced pole 61 and control panel ground layer electric connection, the PG joint stratum passes through second spliced pole 62 and is connected with ground connection support 6, the communication joint stratum passes through third spliced pole 63 and is connected with ground connection support 6. The PG card 9 is fixed on the expansion card support 8, a first through hole corresponding to the second connecting column and a second through hole corresponding to the third connecting column are formed in the expansion card support, one end of the second connecting column penetrates through the first through hole to extend out of the expansion card support, so that the second connecting column is connected with the PG clamping stratum, one end of the third connecting column penetrates through the second through hole to extend out of the expansion card support, so that the third connecting column is connected with the communication clamping stratum, and the PG clamping stratum and the communication clamping stratum are grounded.
Furthermore, the grounding bracket 6 is further provided with a wiring terminal 64, the wiring terminal 64 is provided with a nut hole 641, and the nut hole 641 is used for grounding the shielding cable connecting the control board, the PG card, and the communication card with the external device. The expansion card support 8 is provided with a through hole corresponding to the wiring terminal, and the wiring terminal penetrates through the expansion card support through the through hole, so that the external equipment is conveniently connected with the shielding cable of the control panel, the PG card and the communication card to be grounded, and the interference of the frequency converter to the external equipment and the interference of the external equipment are reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention will still fall within the scope of the technical solution of the present invention.
Claims (6)
1. A high-performance frequency converter is characterized by comprising a radiator, a shell and an expansion card support which are fixedly placed from bottom to top in a stacking mode, a capacitor plate and a drive plate are arranged between the radiator and the shell, the capacitor plate and the drive plate are fixedly placed on the radiator in a stacking mode, a capacitor plate grounding layer is arranged on the capacitor plate, a drive plate grounding layer is arranged on the drive plate, the capacitor plate grounding layer, the drive plate grounding layer and the radiator are electrically connected, a grounding support and a control plate are arranged between the shell and the expansion card support, the grounding support and the control plate are fixed on the shell, a control plate grounding layer is arranged on the control plate, the control plate grounding layer is electrically connected with the grounding support, the grounding support is electrically connected with the radiator, a PG card and a communication card are installed on the expansion card support, a PG card grounding layer is arranged on the PG card, the communication card is provided with a communication card connection stratum, and the PG card connection stratum, the communication card connection stratum and the grounding support are electrically connected.
2. The high-performance frequency converter according to claim 1, wherein the heat sink is provided with a first stud, a second stud and a third stud, the capacitor plate ground layer is electrically connected to the heat sink through the first stud, the drive plate ground layer is electrically connected to the heat sink through the second stud, a copper stud is provided between the heat sink and the ground bracket, and two ends of the copper stud are electrically connected to the ground bracket and the third stud respectively, so that the ground bracket is electrically connected to the heat sink through the copper stud.
3. A high performance frequency converter according to claim 2, wherein said driver board is provided with EMC circuitry and VDR circuitry.
4. The high-performance frequency converter according to claim 3, wherein a fourth stud and a fifth stud are further disposed on the heat sink, the EMC circuit is electrically connected to the heat sink through the fourth stud, and the VDR circuit is electrically connected to the heat sink through the fifth stud.
5. The high-performance frequency converter according to claim 1, wherein the grounding bracket is provided with a first connecting column, a second connecting column and a third connecting column, the grounding bracket is electrically connected with the control panel grounding layer through the first connecting column, the PG clamping stratum is connected with the grounding bracket through the second connecting column, and the communication clamping stratum is connected with the grounding bracket through the third connecting column.
6. The high-performance frequency converter according to claim 5, wherein the grounding bracket is further provided with a connecting terminal, the connecting terminal is provided with a nut hole, and the nut hole is used for grounding a shielding cable for connecting the control board, the PG card and the communication card with external equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169334.1U CN217388517U (en) | 2022-01-21 | 2022-01-21 | High-performance frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169334.1U CN217388517U (en) | 2022-01-21 | 2022-01-21 | High-performance frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217388517U true CN217388517U (en) | 2022-09-06 |
Family
ID=83097790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220169334.1U Active CN217388517U (en) | 2022-01-21 | 2022-01-21 | High-performance frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217388517U (en) |
-
2022
- 2022-01-21 CN CN202220169334.1U patent/CN217388517U/en active Active
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