Mining vehicle-mounted high-power traction module

Abstract

The utility model discloses a mining vehicle-mounted high-power traction module, and belongs to the technical field of mining power equipment. The traction module comprises a water cooling plate, a power assembly, a composite busbar, a supporting capacitor assembly and a control assembly. The heating surface of the power component is tightly attached to the water-cooling plate, and the other surface of the power component is provided with a composite busbar; the conductive end of the support capacitor assembly is connected to the composite busbar. The control assembly is connected to the side surface of the support capacitor assembly. The side surface of the water cooling plate is connected to the cabinet, and the fixed end of the supporting capacitor assembly is connected to the cabinet. According to the utility model, the traction module is divided into the radiator assembly and the support capacitor assembly which are respectively mounted on the cabinet, so that the installation and assembly are convenient, the later disassembly and maintenance cost is low, the layout is compact, the assembly density is high, and the electrical control function is complete.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining power equipment, in particular to a mining vehicle-mounted high-power traction module. Background Art

[0002] In recent years, as the country strengthens its environmental protection policies, the country's ecological requirements for mining are getting higher and higher. In order to cooperate with the country's deployment on carbon peak and carbon neutrality, a large number of mining companies need to update old equipment and gradually eliminate or replace equipment with high energy consumption, high pollution and high noise. At this time, a large number of green and environmentally friendly new energy mining trucks came into being. Some large off-road mining locomotive manufacturers first launched 100-ton pure electric mining trucks. Most of the 100-ton pure electric mining trucks are modified on the basis of the diesel version. The original diesel engine, fuel tank and reducer are removed and replaced with batteries and traction motors. Most of the 100-ton diesel mining trucks are mechanically driven, and the walkways on the vehicles are designed to be relatively small, while the electric drive equipment is generally placed on the walkway, so the size of the electric drive equipment of the pure electric mining truck is required to be small. At present, the drive motors of pure electric mining trucks on the market are mainly high-power asynchronous motors above 600KW. For this reason, the high-power traction module of the traction motor also needs to be redesigned and laid out according to the requirements of mining trucks. Utility Model Content

[0003] The purpose of the utility model is to provide a high-power traction module for mining vehicles to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-power traction module for mining vehicles, the traction module comprising a water-cooling plate, a power component, a composite busbar, a supporting capacitor component and a control component; the heating surface of the power component is installed close to the water-cooling plate, and the composite busbar is installed on the other side of the power component; the conductive end of the supporting capacitor component is connected to the composite busbar, the control component is connected to the side of the supporting capacitor component, and the control component is electrically connected to the power component.

[0005] Furthermore, the side surface of the water cooling plate is connected to the cabinet, and the fixed end supporting the capacitor assembly is connected to the cabinet.

[0006] Furthermore, the power component includes multiple groups of power devices and a driving board, and the power device is electrically connected to the driving board; the heating surface of the power device is installed close to the water cooling plate, and the driving board is installed on the other side of the power device away from the water cooling plate, and the driving board is electrically connected to the control component through an optical fiber connection.

[0007] Furthermore, the water-cooled plate is connected to the cabinet through 8 M8 bolts; there are 6 groups of power components, each group includes 1 power device and 1 driver board, and each driver board is installed on the power device through 3 M4 bolts; the power device is fixed to the water-cooled plate through 8 M6 bolts; the composite busbar is connected to the power device through 36 M8 bolts.

[0008] Furthermore, the conductive end of the supporting capacitor assembly is connected to the composite busbar via 6 M8 bolts.

[0009] Furthermore, the control component is connected to the supporting capacitor component through four M8 bolts, and the fixed end of the supporting capacitor component is connected to the cabinet through four M8 bolts.

[0010] Furthermore, the water cooling plate has a size of 700mm*400mm*25mm.

[0011] Furthermore, the power device uses a package size of 190mm*140mm.

[0012] Furthermore, the size of the supporting capacitor assembly is 595mm*200mm*231mm.

[0013] Furthermore, the frame of the cabinet is welded from low-temperature resistant one-piece square tubes, and the skin is made of low-temperature resistant 2mm weather-resistant steel plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are: 1) The traction power of this power module can reach about 400kW. Due to the large power consumption of the power device, a water-cooled plate is used for heat dissipation, and the water-cooled plate, power device and driver board are integrated into a component and installed in the cabinet; in order to facilitate the front door maintenance in the later stage, the component is wall-mounted on the cabinet frame; 2) The traction power of this power module is very large, which means that the power device is also large, and the corresponding radiator is also large. If the power part is integrated with the supporting capacitor, the overall weight will be very large, and the later maintenance will be very inconvenient and have limitations. In order to solve the later maintenance problem, the supporting capacitor is taken out separately to design a capacitor assembly, thereby reducing the weight of the power part. The capacitor assembly can be pushed into the cabinet through the guide rail and directly connected to the power part through the composite busbar, which effectively meets the requirements of electromagnetic compatibility; 3) In order to reduce stray inductance, the composite busbar should be as short as possible and have fewer bends. This requires that the supporting capacitor should be as close as possible to the power device and be easy to connect, such as Figure 1 In the layout shown, the stray inductance is less than 65nH; 4) When the power module is installed in the cabinet, it is installed on a support beam, and the flatness and parallelism between the corresponding support beams on the cabinet are less than 0.2, thereby reducing the assembly deviation and connection stress of the heat sink assembly and the capacitor assembly.

[0015] In order to more clearly illustrate the functional characteristics and structural parameters of the utility model, further description is given below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of a high-power traction module mounted on a mining vehicle;

[0018] Figure 2 This is a schematic diagram of the upper cabinet installation of a high-power traction module mounted on a mining vehicle;

[0019] The reference numerals in the figure are: 1-water cooling plate, 2-power device and drive board, 3-composite busbar, 4-support capacitor assembly, 5-control assembly, 6-cabinet, 7-traction module. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] like Figure 1 , Figure 2 As shown, a high-power traction module for mining vehicles is characterized in that the traction module 7 includes a water-cooled plate 1, a power component 2, a composite busbar 3, a supporting capacitor component 4 and a control component 5; the heating surface of the power component 2 is installed close to the water-cooled plate 1, and the composite busbar 3 is installed on the other side of the power component 2; the conductive end of the supporting capacitor component 4 is connected to the composite busbar 3, the control component 5 is connected to the side of the supporting capacitor component 4, and the control component 5 is electrically connected to the power component 2. The side of the water-cooled plate 1 is connected to the cabinet 6, and the fixed end of the supporting capacitor component 4 is connected to the cabinet 6.

[0022] Specifically, in one embodiment, the power component 2 includes multiple groups of power devices 2-1 and a driving board 2-2, and the power device 2-1 is electrically connected to the driving board 2-2; the heating surface of the power device 2-1 is installed close to the water cooling plate 1, and the driving board 2-2 is installed on the other side of the power device 2-1 away from the water cooling plate 1, and the driving board 2-2 is electrically connected to the control component 5 through an optical fiber connection.

[0023] Specifically, in one embodiment, the water-cooled plate 1 is connected to the cabinet 6 through 8 M8 bolts; there are 6 groups of power components 2, each group includes 1 power device 2-1 and 1 drive board 2-2, and each drive board 2-2 is installed on the power device 2-1 through 3 M4 bolts; the power device 2-1 is fixed to the water-cooled plate 1 through 8 M6 bolts; the composite busbar 3 is connected to the power device 2-1 through 36 M8 bolts.

[0024] Specifically, in one embodiment, the conductive end of the supporting capacitor assembly 4 is connected to the composite busbar 3 through 6 M8 bolts.

[0025] Specifically, in one embodiment, the control component 5 is connected to the supporting capacitor component 4 through four M8 bolts, and the fixed end of the supporting capacitor component 4 is connected to the cabinet 6 through four M8 bolts.

[0026] Specifically, in one embodiment, the size of the water cooling plate is 700 mm*400 mm*25 mm.

[0027] Specifically, in one embodiment, the power device uses a package size of 190 mm*140 mm.

[0028] Specifically, in one embodiment, the size of the supporting capacitor assembly is 595 mm*200 mm*231 mm.

[0029] Specifically, in one embodiment, the frame of the cabinet is welded from low-temperature resistant one-piece square tubes, and the skin is made of low-temperature resistant 2mm weather-resistant steel plate.

[0030] The processing and installation of various parts of a high-power traction module for mining vehicles are as follows:

[0031] 1. Water cooling plate. After calculation, the long-term heat consumption of the traction module is 8kw, and the maximum heat consumption is 13.4kw. If an air-cooled radiator is used, the volume will be very large, and the cabinet will also be larger. The size of the cabinet cannot meet customer needs. Therefore, water cooling is selected. The size of the water cooling plate is 700mmx400mmx25mm.

[0032] 2. Power components: The power devices use a package size of 190mmx140mm, and the driver uses the Amantys driver board.

[0033] 3. Composite busbar is a component that is crimped together by a layer of 3mm copper plate and two layers of 2mm copper plate with insulating paper between the layers. According to the circuit connection diagram, determine the connection relationship of each power device, crimp the copper pillars at the appropriate position of each layer of copper plate and open holes at the appropriate position for electrical isolation. Main technical parameter requirements: (1) Rated voltage: 1000V (2) Rated current: 700A (3) Insulation resistance: ≥20MΩDC1000V (4) Insulation withstand voltage: DC3500V / 60S≤2mA (5) Flame retardant grade: UL94-V0 (6) Operating temperature: -40~105℃ (9) Minimum creepage distance: 20mm (10) Minimum electrical clearance: 15mm.

[0034] 4. Support capacitor components. According to the circuit diagram, the capacitance is determined to be 4000uF through calculation. Because the capacitance is large, if columnar capacitors are used, the quantity will be large and the space occupied will be large, which does not meet the cabinet size requirements. Therefore, customized capacitors are selected from the manufacturer with dimensions of 595 (width) x200 (depth) x231 (height). After assembling the customized capacitors with the capacitor brackets, they are installed in the cabinet together and electrically connected to the radiator assembly through the composite busbar.

[0035] 5. Control components: Assemble the control board with the metal mounting plate and protective plate, and install them together on the supporting capacitor.

[0036] 6. The cabinet is formed by welding and gluing the frame and skin. The frame is welded with low-temperature resistant one-piece square tubes, and the skin is made of low-temperature resistant 2mm weather-resistant steel plate.

[0037] 7. The traction module is assembled from the radiator assembly and the supporting capacitor assembly. The two parts are assembled separately in the cabinet. The radiator assembly is installed in the cabinet first, and then the supporting capacitor assembly is installed. The composite busbar is used to connect the middle, which is convenient for installation and later maintenance.

[0038] The above is a description of the processing and installation of the main components of the high-power traction module for mining vehicles of the present invention.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-power traction module for mining vehicles, characterized in that: The traction module (7) comprises a water-cooling plate (1), a power component (2), a composite busbar (3), a supporting capacitor component (4) and a control component (5); the heating surface of the power component (2) is installed close to the water-cooling plate (1), and the composite busbar (3) is installed on the other side of the power component (2); the conductive end of the supporting capacitor component (4) is connected to the composite busbar (3), the control component (5) is connected to the side of the supporting capacitor component (4), and the control component (5) is electrically connected to the power component (2).

2. A high-power traction module for mining vehicles according to claim 1, characterized in that: The side surface of the water cooling plate (1) is connected to the cabinet (6), and the fixed end of the supporting capacitor assembly (4) is connected to the cabinet (6).

3. A high-power traction module for mining vehicles according to claim 1, characterized in that: The power assembly (2) comprises a plurality of groups of power devices (2-1) and a drive board (2-2), wherein the power devices (2-1) are electrically connected to the drive board (2-2); the heating surface of the power device (2-1) is installed close to the water-cooling plate (1), and the drive board (2-2) is installed on the other side of the power device (2-1) away from the water-cooling plate (1); and the drive board (2-2) is electrically connected to the control assembly (5) via an optical fiber connection.

4. A high-power traction module for mining vehicles according to claim 3, characterized in that: The water cooling plate (1) is connected to the cabinet (6) via 8 M8 bolts; the power components (2) have 6 groups, each group comprising a power device (2-1) and a drive board (2-2); each drive board (2-2) is mounted on the power device (2-1) via 3 M4 bolts; the power device (2-1) is fixed to the water cooling plate (1) via 8 M6 bolts; and the composite busbar (3) is connected to the power device (2-1) via 36 M8 bolts.

5. A high-power traction module for mining vehicles according to claim 2, characterized in that: The conductive end of the supporting capacitor assembly (4) is connected to the composite busbar (3) via six M8 bolts.

6. A high-power traction module for mining vehicles according to claim 2, characterized in that: The control component (5) is connected to the supporting capacitor component (4) via four M8 bolts, and the fixed end of the supporting capacitor component (4) is connected to the cabinet (6) via four M8 bolts.

7. A high-power traction module for mining vehicles according to claim 1, characterized in that: The size of the water cooling plate (1) is 700mm*400mm*25mm.

8. A high-power traction module for mining vehicles according to claim 3, characterized in that: The power device (2-1) adopts a packaging size of 190mm*140mm.

9. A high-power traction module for mining vehicles according to claim 1, characterized in that: The supporting capacitor assembly (4) has a size of 595 mm*200 mm*231 mm.

10. A high-power traction module for mining vehicles according to claim 2, characterized in that: The frame of the cabinet (6) is welded from low-temperature resistant one-piece square tubes, and the skin is made of low-temperature resistant 2 mm weather-resistant steel plate.

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