High-voltage dual-motor controller
By designing a high-voltage dual motor controller, the IGBT module shares a water channel and uses vertical settings and PIN-FIN needle fin heat sinks to solve the problems of large size, long cooling water channels and low integration in the prior art. It realizes the functions of efficient heat dissipation and driving two motors simultaneously.
Patent Information
- Application Number
- CN202420255260.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing dual motor controller has large size, long cooling water channels of IGBT modules and low integration, making it difficult to drive two motors efficiently at the same time.
Design a high-voltage dual motor controller. The IGBT module shares a water channel. It is arranged vertically through the first cavity and the second cavity. The IGBT module is located above and below the water channel, and is equipped with a PIN-FIN needle fin heat sink. cool down.
It realizes efficient heat dissipation of the IGBT module, reduces the waterway area and length, improves the heat dissipation efficiency, and can drive and control two motors at the same time, improving the integration and power density of the controller.
Smart Images
Figure CN222515455U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of controllers, in particular to a high-voltage dual-motor controller. Background Art
[0002] Forklifts are industrial handling vehicles, which refer to various wheeled handling vehicles for loading and unloading, stacking and short-distance transportation of palletized goods. Forklifts now have two independent electronic control motors, which take up a large space, have more wiring, and are relatively expensive. In addition, the existing dual-motor controllers are all flat-lay solutions, which take up a large length and width of space, have low power density, and the water channels used to cool the IGBT modules are long, take up a large space, and have low integration.
[0003] Therefore, it is a problem worthy of study to provide a high-voltage dual-motor controller which is small in size, has IGBT modules sharing one water channel, has high integration, and can drive and control two motors at the same time. Summary of the invention
[0004] The utility model aims to provide a high-voltage dual-motor controller which is small in size, has IGBT modules sharing one water channel, has high integration, and can drive and control two motors at the same time.
[0005] The purpose of the utility model is achieved in this way:
[0006] A high-voltage dual-motor controller comprises a shell, an upper cover plate located at the top of the shell, a lower cover plate located at the bottom of the shell, a water channel with left and right ends passing through the shell and connected to water pipes at both ends, a first cavity located above the water channel and within the shell, and a second cavity located below the water channel and within the shell, a first IGBT module is arranged in the first cavity, a second IGBT module is arranged in the second cavity, and the first IGBT module and the second IGBT module are respectively located above and below the water channel.
[0007] The first IGBT module and the second IGBT module are both provided with PIN-FIN pin-fin heat sinks, and the PIN-FIN pin-fin heat sinks are located in the water channel to dissipate heat for the first IGBT module and the second IGBT module.
[0008] The upper cover plate, the outer shell and the lower cover plate are sealed by dispensing glue.
[0009] It also includes a control board, a shielding board, a film capacitor and an EMC magnetic ring located in the first cavity, and a busbar is arranged on the right side of the shell.
[0010] Water pipe joints are arranged at both ends of the water channel, and the water pipe joints are located outside the shell.
[0011] The shell is provided with high-voltage positive and negative connectors and a three-phase connector.
[0012] The beneficial effect of the utility model is that the first cavity and the second cavity of the utility model are arranged vertically up and down, the first IGBT module and the second IGBT module are respectively located in the first cavity and the second cavity, the structure is compact, and a water channel is provided between the first cavity and the second cavity, the first IGBT module and the second IGBT module are respectively located above and below the water channel, and the first IGBT module and the second IGBT module are both provided with PIN-FIN pin-fin heat sinks, that is, the PIN-FIN pin-fin heat sink of the first IGBT module and the PIN-FIN pin-fin heat sink of the second IGBT module are both located in the water channel, then one water channel directly cools the two IGBT modules, reduces the area and length of the water channel, improves the heat dissipation efficiency, and the first IGBT module and the second IGBT module can drive and control two motors at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0015] In the figure: housing 1, upper cover plate 2, lower cover plate 3, first IGBT module 4, second IGBT module 5, EMC magnetic ring 6, film capacitor 7, bus bar 8, control board 9, shielding plate 10, first cavity 11, second cavity 12, PIN-FIN pin-fin heat sink 13, water channel 14, high-voltage positive and negative connectors 15, three-phase connector 16. DETAILED DESCRIPTION
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0017] like Figure 1 and Figure 2As shown, a high-voltage dual-motor controller includes a housing 1, an upper cover plate 2 located at the top of the housing 1, and a lower cover plate 3 located at the bottom of the housing 1. The upper cover plate, the housing and the lower cover plate are sealed by dispensing glue, and the sealing effect is good. The overall protection level can reach IP67; it also includes a waterway 14 that passes through the housing 1 at both ends and is connected to the water pipe at both ends, a first cavity 11 located above the waterway 14 and located in the housing 1, and a second cavity 12 located below the waterway 14 and located in the housing. A first IGBT module 4 is arranged in the first cavity 11, and a second IGBT module 5 is arranged in the second cavity 12. The first IGBT module 4 and the second IGBT module 5 are respectively located above and below the waterway 14. PIN-FIN pin-fin heat sinks 13 are provided on the first IGBT module 4 and the second IGBT module 5. The PIN-FIN pin-fin heat sinks 13 are located in the waterway 14 and face the PIN-FIN pin-fin heat sinks 13, thereby dissipating heat for the first IGBT module 4 and the second IGBT module 5. One water channel directly cools two IGBT modules, reducing the area and length of the water channel and improving the heat dissipation efficiency. The first IGBT module and the second IGBT module can drive and control two motors at the same time. The first cavity 11 and the second cavity 12 are arranged vertically up and down, and the first IGBT module 4 and the second IGBT module 5 are respectively located in the first cavity 11 and the second cavity 12, with a compact structure and a high degree of integration.
[0018] It also includes a control board 9, a shielding plate 10, a film capacitor 7 and an EMC magnetic ring 6 located in the first cavity 11. A busbar 8 is provided on the right side of the housing 1; and a high-voltage positive and negative connector 15 and a three-phase connector 16 are provided on the housing 1. When the positive and negative bus currents enter the motor controller, they are first filtered by the EMC magnetic ring 6 and then enter the film capacitor 7. The film capacitor 7 is divided into two positive and negative paths and enters two IGBT power modules. The two power modules output to the motor through the six-phase busbar 8.
[0019] Water pipe joints are provided at both ends of the water channel 114 , and the water pipe joints are located outside the housing 1 , so as to facilitate replacement of water in the water channel 14 to improve the efficiency of heat dissipation.
[0020] The utility model comprises a first cavity and a second cavity which are arranged vertically up and down, and a first IGBT module and a second IGBT module are respectively located in the first cavity and the second cavity, with a compact structure, and a water channel is provided between the first cavity and the second cavity, and the first IGBT module and the second IGBT module are respectively located above and below the water channel, and the first IGBT module and the second IGBT module are both provided with PIN-FIN pin-fin heat sinks, that is, the PIN-FIN pin-fin heat sink of the first IGBT module and the PIN-FIN pin-fin heat sink of the second IGBT module are both located in the water channel, and then one water channel directly cools the two IGBT modules, thereby reducing the area and length of the water channel and improving the heat dissipation efficiency, and the first IGBT module and the second IGBT module can drive and control two motors at the same time.
Claims
1. A high-voltage dual-motor controller, comprising a housing, an upper cover plate located at the top of the housing, and a lower cover plate located at the bottom of the housing, characterized in that: It also includes a water channel with left and right ends passing through the shell and connected to water pipes at both ends, a first cavity located above the water channel and within the shell, and a second cavity located below the water channel and within the shell. A first IGBT module is arranged in the first cavity, and a second IGBT module is arranged in the second cavity. The first IGBT module and the second IGBT module are respectively located above and below the water channel.
2. The high voltage dual motor controller according to claim 1, characterized in that: The first IGBT module and the second IGBT module are both provided with PIN-FIN pin-fin heat sinks, and the PIN-FIN pin-fin heat sinks are located in the water channel to dissipate heat for the first IGBT module and the second IGBT module.
3. The high voltage dual motor controller according to claim 1, characterized in that: The upper cover plate, the outer shell and the lower cover plate are sealed by dispensing glue.
4. The high voltage dual motor controller according to claim 1, characterized in that: It also includes a control board, a shielding board, a film capacitor and an EMC magnetic ring located in the first cavity, and a busbar is provided on the right side of the shell.
5. The high voltage dual motor controller according to claim 1, characterized in that: Water pipe joints are arranged at both ends of the water channel, and the water pipe joints are located outside the shell.
6. The high voltage dual motor controller according to claim 1, characterized in that: The shell is provided with high-voltage positive and negative connectors and a three-phase connector.