CN118973159A - A six-in-one mining card integrated controller - Google Patents

Abstract

The invention relates to a six-in-one mine card integrated controller, which comprises: the casing, the inside cavity of casing divide into upper strata, middle level, lower floor by water-cooling subassembly, has arranged first IGBT module, PDU module, first DCAC module and second DCAC module in the upper strata, is provided with first bus capacitance and second bus capacitance in the middle level, is provided with second IGBT module and DCDC module in the lower floor, and first IGBT module is connected with first motor, and second IGBT module is connected with the second motor for control first motor and second motor. The controller is internally divided into three layers of spaces through the water cooling assembly, the primary loop pre-charging resistor, the secondary loop pre-charging resistor and the DCDC module are placed in the lower layer of bottom space, the two capacitors are symmetrically placed in the middle layer of space, the oil gas pump module and the relay are arranged in the upper layer of bottom space, the inner space of the cavity is fully utilized, the external transverse size of the controller is reduced, the main control board is placed through the metal support, electromagnetic shielding is realized, and the product performance is improved.

Description

A six-in-one mining card integrated controller

Technical Field

The invention belongs to the technical field of controllers, and in particular relates to a six-in-one mining card integrated controller.

Background Art

In the process of automation and intelligence of mining trucks, the controller is the core component of the vehicle, and its performance and integration are directly related to the operation efficiency, safety and maintenance cost of mining trucks. The current new energy mining truck controller consists of two MCUs (main drive motor control modules), DCDC (direct current conversion module), two DCACs (direct current transfer modules), and PDUs (high voltage distribution modules). The matching motor controller has six groups of parallel IGBT modules (two main drive motors are used, and each single phase of the three-phase motor uses a group of parallel IGBTs to complete the output), and it is installed in a flat plane. The required installation surface size is large, the required busbar capacitor size is large, and its external size is also large. The space layout is not reasonably utilized. These reasons will cause the lateral size of the controller to increase. In addition, the existence of cooling water pipes, connectors, mounting feet and external wiring harnesses on the outside of the controller further expands the lateral size of the controller, which will bring great difficulties to the wiring harness connection operation and other component installation of the whole vehicle, making the space utilization rate of the whole vehicle low, and its weight and related costs increase, which seriously restricts the flexibility of the whole vehicle assembly process.

Summary of the invention

Therefore, the present invention aims to solve the problem that the controller in the prior art has a large lateral size, and the presence of cooling water pipes, connectors, mounting feet and external wiring harnesses on the outside of the controller further expands the lateral size of the controller, which will bring great difficulties to the vehicle wiring harness connection operation and other component installation.

To this end, the technical solution adopted is that a six-in-one mining truck integrated controller of the present invention includes: a shell, the internal cavity of the shell is divided into an upper layer, a middle layer and a lower layer by a water cooling component, the upper layer is arranged with a first IGBT module, a PDU module, a first DCAC module and a second DCAC module, the middle layer is provided with a first bus capacitor and a second bus capacitor, and the lower layer is provided with a second IGBT module and a DCDC module.

Preferably, the first MCU includes: a first IGBT module and a first bus capacitor, one end of the first IGBT module is connected to the first bus capacitor, the other end of the first IGBT module is connected to the three-phase line of the first motor through a copper bus, the positive end of the first bus capacitor is connected to the first main drive fuse, the first main drive relay and the positive electrode of the battery in sequence, the negative end of the first bus capacitor is connected to the negative electrode of the battery, the first main drive relay is connected in parallel with the first main drive pre-charging resistor and the first main drive pre-charging relay, and the first bus capacitor is connected with a first discharge resistor.

Preferably, the second MCU includes: a second IGBT module and a second bus capacitor, one end of the second IGBT module is connected to the second bus capacitor, the other end of the second IGBT module is connected to the three-phase line of the second motor through a copper bus, the positive end of the second bus capacitor is connected to the second main drive fuse, the second main drive relay and the positive electrode of the battery in sequence, the negative end of the second bus capacitor is connected to the negative electrode of the battery, the second main drive relay is connected in parallel with the second main drive pre-charging resistor and the second main drive pre-charging relay, and the second bus capacitor is connected with a second discharge resistor.

Preferably, the PDU module includes: a reserved high-voltage interface, an auxiliary drive main relay, an auxiliary drive pre-charging relay, an auxiliary drive pre-charging resistor, an air pump, an oil pump, a 24V battery, an air conditioner, an electric heater, a second DCDC external interface and a third DCDC external interface, one path of the positive electrode of the battery is connected to the positive electrode of the reserved high-voltage interface, another path of the positive electrode of the battery is connected to one end of the auxiliary drive main relay, the other end of the auxiliary drive main relay is respectively connected to the positive ends of the first DCAC module, the second DCAC module and the DCDC module, the auxiliary drive main relay is connected in parallel with the auxiliary drive pre-charging relay and the auxiliary drive pre-charging resistor, one path of the negative electrode of the battery is connected to the negative electrode of the reserved high-voltage interface, and another path of the negative electrode of the battery is respectively connected to the first D The negative terminals of the CAC module, the second DCAC module and the DCDC module are connected, the first DCAC module and the motor of the air pump are connected through a three-phase line, the second DCAC module and the motor of the oil pump are connected through a three-phase line, completing the output to the auxiliary drive motor, the DCDC module is connected to the 24V battery, the positive terminals of the air conditioner, electric heating, the second DCDC external interface and the third DCDC external interface are all connected to the auxiliary drive main relay, the negative terminals of the air conditioner, electric heating, the second DCDC external interface and the third DCDC external interface are all connected to the negative terminal of the battery, and the positive terminals of the electric heating, the second DCDC external interface and the third DCDC external interface are all connected to the control relay.

Preferably, an upper cover plate is provided at the top of the shell, a busbar inspection port is provided on the upper cover plate, the upper cover plate is fastened to the shell by hexagonal screws, a fuse inspection port is also provided on the top of the shell, and the fuse cover plate is fastened to the shell by cross screws.

Preferably, a hanging ring is provided on the side wall of the shell, and a mounting foot is provided on the bottom wall of the shell.

Preferably, a three-phase output and a battery input terminal are arranged on the side of the shell, and a nameplate, a water outlet, a water inlet, a water channel cover, a low-voltage debugging interface, a high-voltage wiring port, a waterproof breathable valve, an oil pump interface, a PTC interface, an AC interface, a second DCDC interface, a third DCDC interface, an air pump interface, a 24V negative electrode interface, a 24V positive electrode interface and a grounding point are also arranged on the side of the shell.

The technical solution of the present invention has the following advantages:

1. The present invention fully considers the difficulty of vehicle layout in shell design, and designs a solution that can replace the current dual five-in-one controller to drive and control new energy heavy trucks, improves the current problems of functional redundancy, low space utilization and large lateral size, and greatly improves system integration while ensuring driving capability. The space utilization of the controller is increased through a more reasonable layout of components, providing more possibilities for vehicle layout, and reducing the weight and cost of the vehicle.

2. While ensuring that the use requirements can be met, the present invention designs a flow water channel in the internal space of the controller. The water channel design not only meets the heat dissipation of key modules such as IGBT, bus capacitor and DCDC, but also the IGBT is arranged in parallel in space to reduce the lateral size of the controller, making the actual loading and layout process more flexible.

3. The present invention fully considers the wiring harness and pipeline assembly during the whole vehicle layout process. The DC input terminal of the controller is located on the upper side of the controller to facilitate connection with the battery pack; the three-phase line is led out downward to facilitate connection with the motor; the waterway inlet and outlet and various functional sockets are all located on the same side, which greatly facilitates the layout and fixation of the wiring harness and pipelines and reduces the difficulty of vehicle assembly.

4. The present invention divides the interior of the controller into three layers of space through a water cooling component, places the primary and secondary circuit pre-charging resistors and the DCDC module in the lower bottom space, places two capacitors symmetrically in the middle space, and arranges the oil and gas pump module and the relay in the upper bottom space, making full use of the internal space of the cavity, which helps to reduce the external lateral size of the controller, and uses a metal bracket to place the main control board and achieve electromagnetic shielding at the same time, which is more conducive to improving product performance.

5. While ensuring the reasonable layout of various functional components, the present invention concentrates the internal wiring harness and copper busbar in the surplus space inside the controller, and fixes them with the assistance of components such as fuse boxes and main control board brackets. The wiring harness direction is reasonably planned while ensuring the wiring harness connection requirements, effectively preventing the wiring harness from bending and connector pin withdrawal, and is more conducive to ensuring the stability of the product under working conditions.

Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

Fig. 1 is a schematic diagram of the spatial layout of the present invention;

FIG2 is a schematic diagram of the upper layout of the controller of the present invention;

FIG3 is a schematic diagram of the lower layer arrangement of the controller of the present invention;

FIG4 is a schematic diagram of the circuit principle of the present invention;

Fig. 5 is a front view of the present invention;

Fig. 6 is a rear view of the present invention;

FIG7 is a schematic diagram of an internal explosion structure of the present invention;

FIG8 is a schematic diagram of the internal explosion structure of the side end of the present invention;

DETAILED DESCRIPTION

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

The present invention provides a six-in-one mining truck integrated controller, as shown in Figures 1-3, comprising: a shell 1, the internal cavity of the shell 1 is divided into an upper layer 3, a middle layer 4, and a lower layer 5 by a water cooling component 2, a first IGBT module 6, a PDU module 7, a first DCAC module 8, and a second DCAC module 9 are arranged in the upper layer 3, a first bus capacitor 10 and a second bus capacitor 11 are arranged in the middle layer 4, and a second IGBT module 12 and a DCDC module 13 are arranged in the lower layer 5.

The working principle and beneficial technical effects of the above technical solution are as follows: the interior of the controller is divided into three layers of space by the water cooling component 2, the upper layer 3 is arranged with the first IGBT module 6, the PDU module 7, the first DCAC module 8 and the second DCAC module 9, the middle layer 4 is provided with the first bus capacitor 10 and the second bus capacitor 11, and the lower layer 5 is arranged with the second IGBT module 12 and the DCDC module 13, which makes full use of the internal space of the cavity, helps to reduce the external lateral size of the controller, brings convenience to the wiring harness connection operation of the whole vehicle and the installation of other components, and improves the space utilization rate of the whole vehicle.

In one embodiment, as shown in Figures 1-4, the first MCU includes: a first IGBT module 6 and a first bus capacitor 10, one end of the first IGBT module 6 is connected to the first bus capacitor 10, the other end of the first IGBT module 6 is connected to the three-phase line of the first motor through a copper bus, the positive end of the first bus capacitor 10 is connected to the first main drive fuse 19, the first main drive relay 20 and the positive electrode of the battery 14 in sequence, the negative end of the first bus capacitor 10 is connected to the negative electrode of the battery 14, the first main drive relay 20 is connected in parallel with the first main drive pre-charging resistor 21 and the first main drive pre-charging relay 22, and the first bus capacitor 10 is connected with a first discharge resistor 23. The second MCU includes: a second IGBT module 12 and a second bus capacitor 11, one end of the second IGBT module 12 is connected to the second bus capacitor 11, the other end of the second IGBT module 12 is connected to the three-phase line of the second motor through a copper bus, the positive end of the second bus capacitor 11 is connected to the second main drive fuse 24, the second main drive relay 25 and the positive electrode of the battery 14 in sequence, the negative end of the second bus capacitor 11 is connected to the negative electrode of the battery 14, the second main drive relay 25 is connected in parallel with the second main drive pre-charge resistor 26 and the second main drive pre-charge relay 27, and the second bus capacitor 11 is connected with a second discharge resistor 28. The first IGBT module 6 is placed on the upper layer of the controller, and the second IGBT module 12 is placed on the lower layer of the controller, so as to reduce the lateral size of the controller.

Beneficial technical effects of the above technical solution: the first MCU, the first main drive relay 20 and the battery 14 form a circuit loop for powering the first motor and controlling the first motor, and the second MCU, the second main drive relay 25 and the battery 14 form a circuit loop for powering the second motor and controlling the second motor. The first discharge resistor 23 and the second discharge resistor 28 are used to ensure that there is no residual current in the capacitor after the power is turned off. The first main drive relay 20 is connected in parallel with the first main drive pre-charge resistor 21 and the first main drive pre-charge relay 22 to achieve the protection of the first main drive circuit, and the second main drive relay 25 is connected in parallel with the second main drive pre-charge resistor 26 and the second main drive pre-charge relay 27 to achieve the protection of the second main drive circuit to prevent the relay from being damaged by overcurrent adhesion and the capacitor from being broken down.

In one embodiment, the PDU module includes: a reserved high-voltage interface 29, an auxiliary drive main relay 30, an auxiliary drive pre-charging relay 31, an auxiliary drive pre-charging resistor 32, an air pump 33, an oil pump 34, a 24V battery 35, an air conditioner 36, an electric heater 37, a second DCDC external interface 38 and a third DCDC external interface 39, one positive pole of the battery 14 is connected to the positive pole of the reserved high-voltage interface 29, another positive pole of the battery 14 is connected to one end of the auxiliary drive main relay 30, and the other end of the auxiliary drive main relay 30 is respectively connected to the positive ends of the first DCAC module 8, the second DCAC module 9 and the DCDC module 13, the auxiliary drive main relay 30 is connected in parallel with the auxiliary drive pre-charging relay 31 and the auxiliary drive pre-charging resistor 32, one negative pole of the battery 14 is connected to the negative pole of the reserved high-voltage interface 29, and another negative pole of the battery 14 is respectively connected to the first The negative terminals of the DCAC module 8, the second DCAC module 9 and the DCDC module 13 are connected, the first DCAC module 8 and the motor of the air pump 33 are connected through a three-phase line, the second DCAC module 9 and the motor of the oil pump 34 are connected through a three-phase line, the DCDC module 13 is connected to the 24V battery 35, the positive terminals of the air conditioner 36, the electric heater 37, the second DCDC external interface 38 and the third DCDC external interface 39 are all connected to the auxiliary drive main relay 30, the negative terminals of the air conditioner 36, the electric heater 37, the second DCDC external interface 38 and the third DCDC external interface 39 are all connected to the negative terminal of the battery 14, and the positive terminals of the electric heater 37, the second DCDC external interface 38 and the third DCDC external interface 39 are all connected to the control relay 43 to achieve the connection and disconnection and isolation protection of the circuit.

Beneficial technical effects of the above technical solution: The PDU module is used to realize power extraction from the battery 14, and to distribute high voltage power to the air pump 33, the oil pump 34, the 24V battery 35, the air conditioner 36, and the electric heater 37. The auxiliary drive main relay 30 is connected in parallel with the auxiliary drive pre-charge relay 31 and the auxiliary drive pre-charge resistor 32 to form a secondary circuit pre-charge circuit to ensure that the components are not damaged. The second DCDC external interface 38 and the third DCDC external interface 39 are used as backup interfaces to provide backup DC interfaces.

In one embodiment, as shown in Fig. 5-6, an upper cover plate 44 is provided at the top of the housing 1, and a busbar inspection port is provided on the upper cover plate 44. The upper cover plate 44 is fastened to the housing 1 by hexagonal screws 45. In order to facilitate operators to quickly identify information such as product factory numbers, part numbers and supplier codes, permanent identification and software and hardware version labels are affixed to the upper cover plate 44 to prevent operators from illegal operations. A fuse inspection port is also provided at the top of the housing 1 to quickly check and replace each fuse, and the fuse cover plate 46 is fastened to the housing 1 by cross screws 47. A lifting ring 48 is provided on the side wall of the housing 1, and a mounting foot 49 is provided on the bottom wall of the housing 1 to complete the movement and installation of the controller.

In one embodiment, as shown in Fig. 5-6, a three-phase output 50 and a battery input terminal 51 are provided on the side of the housing 1, and a nameplate 52, a water outlet 53, a water inlet 54, a water channel cover 55, a low-voltage debugging interface 56, a high-voltage wiring interface 57, a waterproof breathable valve 58, an oil pump interface 59, a PTC interface 60, an AC interface 61, a second DCDC interface 62, a third DCDC interface 63, an air pump interface 64, a 24V negative electrode interface 65, a 24V positive electrode interface 66 and a grounding point are also provided on the side of the housing 1. The waterproof breathable valve 58 plays a role in waterproofing and dustproofing, and prevents condensation inside the controller due to high humidity from causing adverse effects such as short circuits and failures on electronic components. The oil pump interface 59 realizes the output of the steering auxiliary drive motor drive. The PTC interface 60 realizes the electric heating power supply of the whole vehicle. The AC interface 61 realizes the power supply of the whole vehicle air conditioning system. The second DCDC interface 62 and the third DCDC interface 63 realize the conversion of the high voltage electricity of the whole vehicle into 24V low voltage electricity, and have certain protection functions. The air pump interface 64 realizes the air compressor drive output. The 24V negative electrode interface 65 and the 24V positive electrode interface 66 are high voltage electricity to 24V power supply interfaces. The grounding point ensures the normal operation of the equipment and personal safety through grounding.

In one embodiment, as shown in FIGS. 7-8 , a first main drive circuit and a second main drive circuit are disposed in the housing 1 , wherein the first main drive circuit is located in the upper layer 3 , and the second main drive circuit is located in the lower layer 5 .

The first main drive circuit includes: a positive copper bar 67 and a negative copper bar 68. The positive copper bar 67, the negative copper bar 68 and the laminated busbar 69 are fixed to the busbar insulation seat 70 by bolts. The busbar insulation seat 70 and the busbar shielding plate 71 assembled by bolts are fixed through five busbar insulation seat support columns 72 through holes. The positive copper bar 67 and the laminated busbar 69 are connected by bolts to form a DC bus input component, and the L1 ends of the two main relays are respectively connected under the laminated busbar 69 to form two MCUs. The negative copper bar 68 is connected to the negative pole of the first bus capacitor 10 through the first copper bar 73 to complete the DC bus output. The second copper bar 74 connects the first main drive fuse 75 and the first main drive relay 20. The first main drive fuse 75 is placed in a first main drive fuse box 76 installed on the shell by bolts. The other end of the first main drive fuse 75 is connected to the positive pole of the first bus capacitor 10 through the second copper bar 77. A negative electrode of a bus capacitor 10 is connected to a negative electrode copper bar 68 through a first copper bar 73. A first bus capacitor 10 is arranged below the water cooling assembly 2, and a first main drive IGBT module 78 is arranged above it. The input end of the first main drive IGBT module 78 is connected to the output end of the first bus capacitor 10 through screws. The output end of the first main drive IGBT module 78 is respectively connected to W1 output copper bar 80, V1 output copper bar 81, and U1 output copper bar 82 through a parallel copper bar 79. A current sensor 83 is installed on the V phase and the U phase to further ensure the stability of the output end structure. A copper bar support block 84 is arranged in the groove between the mounting plane of the first main drive IGBT module 78 and the water cooling assembly 2 to assist in fixing the parallel copper bar 79. The parallel copper bar 79 connects the two parallel IGBT output ends, and the output copper bar is fixed in the middle with the mounting hole on the copper bar support block 84 to complete the output of the first main drive circuit and supply power to the first main drive motor.

The second main drive circuit includes: a first drive copper bar 85 and a second main drive relay 25, the first drive copper bar 85 is connected to the second main drive relay 25 and the second main drive fuse 86, the second main drive fuse 86 is installed in a second main drive fuse box 87, the second main drive fuse 86 is connected to the positive electrode of the second bus capacitor 11 through the third copper bar 88 and the fourth copper bar 89, the negative electrode of the second bus capacitor 11 is first connected to the negative copper bar in the laminated busbar 69 through the fifth copper bar 90 and the sixth copper bar 91, and then connected to the negative electrode Copper bar 68, copper bar bracket 129 fixes the third copper bar 88, the fourth copper bar 89, the fifth copper bar 90 and the sixth copper bar 91 inside the lower layer of the shell 1, the output end of the second bus capacitor 11 is connected to the input end of the second main drive IGBT module 92, the output end of the second main drive IGBT module 92 is connected to the W2 output copper bar 93, the V2 output copper bar 94 and the U2 output copper bar 95 by bolts, and the current sensor 83 is installed on the W phase and the V phase. The three-phase output of the second main drive circuit is concentrated on the right side through the W2 output copper bar 93, the V2 output copper bar 94 and the U2 output copper bar 95 to supply power to the second main drive motor.

The W2 output copper busbar 93, the V2 output copper busbar 94 and the U2 output copper busbar 95 are installed in the three-phase insulating seat 96 by bolts to form a high-voltage wiring window, and are connected to the three-phase output wiring harness 97 to output three-phase AC power to each motor. The first discharge resistor 23 is fixed in the threaded hole of the water cooling component 2 by bolts. To ensure that there is no residual current in the capacitor after the power is turned off, the first bus capacitor and the second bus capacitor in the controller are equipped with discharge resistors, and both ends of the discharge resistor are connected to the positive and negative electrodes of the bus capacitor by wires. The second discharge resistor 28 is fixed in the lower space of the shell 1 by bolts to prevent the relay from being damaged by overcurrent adhesion and the capacitor from being broken down. , the two main drive circuits are equipped with their own pre-charging circuits, the first main drive relay 20 is connected to one end of the first main drive pre-charging resistor 21, the other end of the first main drive pre-charging resistor 21 is connected to the first connection end of the first main drive pre-charging relay 22, the second connection end of the first main drive pre-charging relay 22 is connected to the second copper bus 74, to achieve pre-charging protection of the first main drive circuit, the second main drive relay 25 is connected to one end of the second main drive pre-charging resistor 26, the other end of the second main drive pre-charging resistor 26 is connected to the first connection end of the second main drive pre-charging relay 27, the second connection end of the second main drive pre-charging relay 27 is connected to the first drive copper bus 85, to achieve pre-charging protection of the second main drive circuit.

The DCDC module assembly 98 is fixed in the lower space of the housing 1. The positive pole of the DCDC module assembly 98 is connected to the small fuse 99, and the negative pole is connected to the sixth copper bar 91. The sixth copper bar 91 is connected to the negative copper bar 68, and the negative copper bar 68 is connected to the eighth copper bar 100 and the socket crimping copper bar 101 in sequence. The DCDC module can convert high-voltage input electricity into 24V low-voltage output electricity, and work according to the enable command issued by the VCU to convert the high-voltage electricity of the whole vehicle into 24V low-voltage electricity; it has protection functions such as overvoltage, undervoltage, overtemperature, overcurrent, short circuit and anti-reverse connection.

The first DCAC module 8 and the second DCAC module 9 are both installed in the upper space of the housing 1 by bolts. The oil pump module 102 and the air pump module 103 are respectively located at the two ends of the bottom surface of the housing 1 and are respectively connected to the positive electrodes of the first DCAC module 8 and the second DCAC module 9. The negative electrodes of the first DCAC module 8 and the second DCAC module 9 are connected to the sixth copper bar 91 and the negative copper bar 68. The UVW phases of the first DCAC module 8 and the second DCAC module 9 are respectively connected to the external air pump socket and the oil pump socket to complete the output of the three-phase current. The first DCAC module 8 and the second DCAC module 9 mainly realize the drive control of the auxiliary drive motor. The two auxiliary drive drive modules in this controller can independently drive an auxiliary drive motor to work, drive the air pump motor and the oil pump motor respectively, and realize the control of the air compression pump and the steering oil pump. The speed mode closed-loop control is adopted, and it works according to the enable command issued by the VCU to drive the auxiliary drive motor to meet the needs of the whole vehicle.

The PDU module 7 includes: a secondary circuit main relay 104, a first connection end of the secondary circuit main relay 104 is connected to the first circuit copper busbar 105 and the laminated busbar 69 in sequence, a second connection end of the secondary circuit main relay 104 is connected to the second circuit copper busbar 106, the third circuit copper busbar 107, the fuse copper busbar 108 and the small fuse 99 in sequence, the small fuse 99 is connected to one end of the PTC relay 109, and the other end of the PTC relay 109 is connected to the positive electrode of the external socket to form a PTC power supply circuit, and is connected to the negative electrode on the sixth copper busbar 91, one end of the first HV1 copper busbar 110 is connected to the laminated busbar 69, and the first HV1 copper busbar 110 is connected to the laminated busbar 69. 0 The other end is connected to the HV1 fuse 111, and is connected to the positive pole of the external socket through the second HV1 copper bar 112, the third HV1 copper bar 113 is connected to the negative pole of the external socket, the second HV1 copper bar 112 is connected to the HV1 fuse 111 through bolts, the third HV1 copper bar 113 is connected to the sixth copper bar 91 through bolts, and the fuse junction box 114 is installed inside the housing 1 through bolts, which not only plays the role of placing the small fuse 99 and the HV1 fuse 111, but also has threaded holes on its back and side to assist in the positioning of the copper bar, and at the same time, an array of waist-round holes are opened on the edge to assist in binding the wiring harness, so that the internal wiring harness and copper bar of the controller are more reasonably oriented. A small fuse 99 and an HV1 fuse 111 are arranged in the fuse junction box 114, the first circuit copper busbar 105 is connected to one end of the secondary circuit pre-charging relay 115, the other end of the secondary circuit pre-charging relay 115 is connected to one end of the secondary circuit pre-charging resistor 116, the other end of the secondary circuit pre-charging resistor 116 is connected to the second circuit copper busbar 106, the second circuit copper busbar 106 is connected to the secondary circuit main relay 104, the small fuse 99 is respectively connected to the second DCDC relay 117 and the third DCDC relay 128 to form a secondary circuit pre-charging circuit to ensure that the components are not damaged.

The main control board 118 is suspended and installed in the housing 1 through the threaded holes on the support frame 119 and the shielding plate 123, and the main control board 118 realizes the collection and control of the signal. The shielding plate 123 is suspended and installed on the water cooling component 2 through the threaded holes on the first shielding plate support column 120, the second shielding plate support column 121 and the busbar insulation seat 70. The sixth copper bar 91 is suspended and fixed above the shielding plate 123 through three insulation columns 122. A shielding insulation plate 124 is arranged between the sixth copper bar 91 and the shielding plate 123. A high-voltage collection insulation plate 125 is arranged between the main control board 118 and the support frame 119. The multi-layer insulation and metal material not only ensure the stable installation of each component, but also ensure a good electromagnetic shielding effect. The bottom surface of the housing 1 is provided with a wire tie seat 126 and a nylon wire tie column 127 to facilitate the arrangement of the internal wiring harness of the controller. The first main drive fuse box 76 and the support frame 119 are provided with wiring harness holes to ensure reasonable planning of the wiring harness direction under the wiring harness connection requirements, effectively prevent the wiring harness from bending and connector pin retreat, and are more conducive to ensuring the stability of the product in working condition.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (7)

1. A six-in-one mining card integrated controller, comprising: the shell body (1), the inside cavity of shell body (1) is divided into upper strata (3), middle level (4), lower floor (5) by water-cooling subassembly (2), has arranged first IGBT module (6), PDU module (7), first DCAC module (8) and second DCAC module (9) in upper strata (3), is provided with first bus capacitor (10) and second bus capacitor (11) in middle level (4), is provided with second IGBT module (12) and DCDC module (13) in lower floor (5).

2. The six-in-one mining card integrated controller according to claim 1, wherein the first MCU comprises a first IGBT module (6) and a first bus capacitor (10), one end of the first IGBT module (6) is connected with the first bus capacitor (10), the other end of the first IGBT module (6) is connected with a three-phase line of a first motor through a copper bar, the positive electrode end of the first bus capacitor (10) is sequentially connected with a first main drive fuse (19), a first main drive relay (20) and the positive electrode of a battery (14), the negative electrode end of the first bus capacitor (10) is connected with the negative electrode of the battery (14), the first main drive relay (20) is connected with a first main drive pre-charge resistor (21) and a first main drive pre-charge relay (22) in parallel, and the first bus capacitor (10) is connected with a first discharge resistor (23).

3. The integrated controller of claim 1, wherein the second MCU comprises: the second IGBT module (12) and second bus capacitor (11), second IGBT module (12) one end is connected with second bus capacitor (11), the three phase line of second motor is passed through the copper bar with second IGBT module (12) other end and is connected, the positive pole end of second bus capacitor (11) is connected with second owner in proper order and drives fusing (24), second owner drives relay (25) and battery (14) positive pole, the negative pole end of second bus capacitor (11) is connected with battery (14) negative pole, second owner drives relay (25) parallelly connected second owner and drives precharge resistor (26) and second owner and fill relay (27), be connected with second discharge resistor (28) on second bus capacitor (11).

4. The integrated controller of claim 1, wherein the PDU module comprises: reserved high-voltage interface (29), auxiliary drive main relay (30), auxiliary drive pre-charge relay (31), auxiliary drive pre-charge resistor (32), air pump (33), oil pump (34), 24V storage battery (35), air conditioner (36), electric heating (37), second DCDC external interface (38) and third DCDC external interface (39), battery (14) positive pole is connected with reserved high-voltage interface (29) positive pole all the way, battery (14) positive pole is connected with auxiliary drive main relay (30) one end in the other way, auxiliary drive main relay (30) other end is connected with first DCAC module (8), second DCAC module (9) and the positive pole end of DCDC module (13) respectively, auxiliary drive main relay (30) are connected with the parallel auxiliary drive pre-charge resistor (32) and the negative pole of battery (14) is connected with reserved high-voltage interface (29) negative pole, battery (14) negative pole is connected with first DCAC module (8), second DCAC module (9) and DCDC motor (13) negative pole end respectively, first DCAC module (9) and third DCAC module (13) negative pole end are connected with air conditioner (35) through electric phase line (35), air conditioner (13) and air pump (37) are connected with electric phase line (35) The positive ends of the second DCDC external interface (38) and the third DCDC external interface (39) are connected with the auxiliary driving main relay (30), the negative ends of the air conditioner (36), the electric heating (37), the second DCDC external interface (38) and the third DCDC external interface (39) are connected with the negative electrode of the battery (14), and the positive ends of the electric heating (37), the second DCDC external interface (38) and the third DCDC external interface (39) are connected with the control relay (43).

5. The integrated controller of a six-in-one mining card according to claim 1, wherein an upper cover plate (44) is arranged at the top end of the housing (1), a bus access hole is arranged on the upper cover plate (44), the upper cover plate (44) is fastened on the housing (1) through a hexagonal screw (45), a fusing access hole is also arranged at the top end of the housing (1), and a fusing cover plate (46) is fastened on the housing (1) through a cross screw (47).

6. The integrated controller of a six-in-one mining card according to claim 1, wherein a hanging ring (48) is arranged on the side wall of the housing (1), and a mounting support leg (49) is arranged on the bottom wall of the housing (1).

7. A six-in-one mining card integrated controller according to claim 1, characterized in that a three-phase output (50) and a battery input end (51) are arranged on the side surface of the casing (1), and a nameplate (52), a water outlet (53), a water inlet (54), a water channel cover plate (55), a low-voltage debugging interface (56), a high-voltage wiring interface (57), a waterproof ventilation valve (58), an oil pump interface (59), a PTC interface (60), an AC interface (61), a second DCDC interface (62), a third DCDC interface (63), an air pump interface (64), a 24V negative electrode interface (65), a 24V positive electrode interface (66) and a grounding point are also arranged on the side surface of the casing (1).