Vehicle power assembly and engineering mechanical equipment thereof

Abstract

The utility model discloses a vehicle power assembly and engineering mechanical equipment thereof. The vehicle power assembly comprises a power supply unit, a controller unit and a heat dissipation unit which are integrated on a vehicle frame. The power supply unit is detachably mounted on the frame; the controller unit comprises a control mechanism which is detachably mounted on the frame; the heat dissipation unit comprises a condenser and a heat dissipation device which are detachably installed on the vehicle frame, and the condenser and the heat dissipation device are detachably connected so that new energy parts can be connected in an integrated mode, the assembling difficulty of new energy small and medium-sized engineering machinery, special operation equipment and a whole vehicle is greatly reduced, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle power assembly and an engineering machinery equipment thereof. Background Art

[0002] In the process of the development of engineering machinery and vehicles towards the direction of electric drive and fuel engine power generation for energy replenishment, many problems have been exposed. In order to improve the energy utilization efficiency, it is necessary to decouple the power, that is, the forward and backward walking part of the vehicle is driven by a walking motor and its controller. The hydraulic system is driven by an oil pump motor and its controller. The range extender power generation system also has corresponding motors and controllers. At the same time, the lithium battery, the motor electronic control, and the engine need cooling water at three different temperatures for heat dissipation, and the cab occupant compartment needs an air conditioning and a heating system. Compared with the traditional diesel-powered engineering machinery and vehicles, the structure of new energy, especially the oil-electric hybrid architecture, is more complex, with more parts and more pipelines and wires. When assembling the whole vehicle, new energy controllers, high-voltage cables, cooling pipelines, engines, valve systems, radiators, etc. need to be assembled onto the vehicle frame one by one according to the assembly process. There are many processes, the process is complex, the assembly efficiency is low, and the maintenance convenience is poor. The same problems also exist in pure electric new energy vehicles. Content of the Utility Model

[0003] The purpose of the utility model is to provide a vehicle power assembly to solve the problems existing in the above-mentioned prior art, so as to be able to integrally connect new energy components, greatly reduce the assembly difficulty of the whole vehicle of new energy medium and small-sized engineering machinery, special operation equipment and vehicles, and improve the assembly efficiency.

[0004] To achieve the above purpose, the utility model provides the following solution: The utility model provides a vehicle power assembly, including a power assembly body, the power assembly body includes a power supply unit, a controller unit and a heat dissipation unit integrated together, and the power assembly body is detachably installed on the vehicle frame.

[0005] Preferably, the power assembly body includes a combined bracket detachably installed on the vehicle frame, and a bracket shock pad is provided at the connection between the combined bracket and the vehicle frame. The power supply unit, the controller unit and the heat dissipation unit are all detachably installed on the combined bracket.

[0006] Preferably, the power supply unit includes a generator, an engine and an intake and exhaust mechanism;

[0007] The generator and the engine are both detachably connected to the combined bracket; the rotor of the generator is detachably connected to the crankshaft output end of the engine, the stator of the generator is detachably connected to the flywheel housing of the engine, and the housing part of the generator and the intake and exhaust mechanism are both detachably connected to the housing part of the engine.

[0008] Preferably, the generator is located above the combined bracket, and a plurality of generator shock-absorbing foot pads detachably connected to the combined bracket are supported at its bottom, and the generator shock-absorbing foot pads are detachably connected to the housing part of the engine;

[0009] The engine is located above the combined bracket, and a plurality of engine shock-absorbing foot pads detachably connected to the combined bracket are supported at its bottom, and the engine shock-absorbing foot pads are detachably connected to the housing part of the generator.

[0010] Preferably, the intake and exhaust mechanism includes an intercooler detachably connected to the housing part of the engine, the intake port of the intercooler is communicated with the turbocharger of the engine, and the outlet port of the intercooler is communicated with the intake manifold of the engine.

[0011] Preferably, the power supply unit further includes an oil pump motor, an oil pump reducer and a gear oil pump with power transmitted in sequence, the housing parts of the oil pump reducer and the oil pump motor are both detachably connected to the lower part of the combined bracket, and the housing parts of the oil pump motor and the gear oil pump are both detachably connected to the housing part of the oil pump reducer.

[0012] Preferably, a front suspension and a rear suspension of the reducer are connected between the housing part of the oil pump reducer and the combined bracket, and the front suspension and the rear suspension of the reducer are distributed on both sides of the oil pump reducer;

[0013] An oil pump motor suspension is connected between the oil pump motor and the combined bracket.

[0014] Preferably, the power supply unit includes a lithium battery assembly, and the lithium battery assembly is detachably installed on the combined bracket.

[0015] Preferably, the controller unit includes the vehicle controller and the travel controller detachably installed on the combined bracket, the heat dissipation unit includes the condenser and the radiator detachably installed on the combined bracket, and the condenser is detachably connected to the radiator.

[0016] An engineering machinery equipment is further provided, which includes a vehicle frame, and the vehicle power assembly is installed on the vehicle frame, and the vehicle power assembly includes an integrated power supply unit, a controller unit and a heat dissipation unit.

[0017] The utility model has achieved the following technical effects compared with the prior art:

[0018] The vehicle powertrain provided by the utility model integrates a power supply unit, a controller unit, a heat dissipation unit 20, etc. on the vehicle frame, enabling new energy components and their attached pipeline systems to be separated from the vehicle frame and pre-assembled. Specifically, the assembly of new energy system components does not depend on the vehicle platform and can be independent of the vehicle assembly line. After being assembled and functionally tested in a sub-assembly production line or sub-assembly factory, they can be assembled onto the vehicle frame to complete the merger, reducing the vehicle assembly process and greatly improving the vehicle assembly efficiency. Moreover, during vehicle assembly, only the vehicle powertrain needs to be assembled onto the vehicle frame and the interface pipeline system connected to make the assembly operate, greatly reducing the vehicle assembly difficulty of new energy medium and small-sized construction machinery, special operation equipment, and vehicles. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the connection between the combined bracket and the power generation part of the present utility model;

[0021] Figure 2 Schematic diagram of the structure of the power generation part of the present utility model;

[0022] Figure 3 Schematic diagram of the connection between the combined bracket and the oil pump part of the present utility model;

[0023] Figure 4 Schematic diagram of the structure of the oil pump part of the present utility model;

[0024] Figure 5 Schematic diagram of the structure of the condenser and the heat dissipation part of the present utility model;

[0025] Figure 6 Schematic diagram of the overall structure of the present utility model;

[0026] Wherein, 1 - combined bracket, 2 - power generation part, 3 - muffler, 4 - intercooler silicone tube, 5 - intercooler, 6 - intake silicone tube, 7 - engine, 8 - engine shock absorber pad, 9 - generator shock absorber pad, 10 - generator, 11 - oil pump part, 12 - front suspension of the reducer, 13 - oil pump reducer, 14 - oil pump motor suspension, 15 - rear suspension of the reducer, 16 - oil pump motor, 17 - gear oil pump, 18 - condenser, 19 - radiator, 20 - heat dissipation unit. Detailed Embodiments

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] The purpose of the present invention is to provide a vehicle powertrain and its engineering machinery equipment, so as to solve the problems existing in the above-mentioned prior art, and to be able to integrally connect new energy components, greatly reducing the assembly difficulty of new energy medium and small-sized construction machinery, special operation equipment and vehicle whole vehicles, and improving the assembly efficiency.

[0029] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] As Figures 1 to 6 shown, this embodiment provides a vehicle powertrain, which includes a power supply unit, a controller unit and a heat dissipation unit 20 integrated on the vehicle frame; the power supply unit is detachably installed on the vehicle frame, and the power supply unit can be an extended-range power generation system, which includes a generator 10, an engine 7 and an intake and exhaust mechanism, etc., and is also equipped with an air filter assembly and a muffler 3, etc., and can also be a pure electric power generation system, which includes a lithium battery assembly, etc.; the controller unit includes a control mechanism that can be detachably installed on the vehicle frame, which includes a vehicle controller and a travel controller, etc., and when the control mechanism is an extended-range power generation system, it is also provided with a generator control mechanism, an engine control mechanism, an oil pump motor control mechanism, etc., and when the control mechanism is a pure electric power generation system, it is provided with a battery control mechanism. Preferably, control wire harnesses are connected between the control mechanisms, and a relay box is set according to the overall control requirements; the heat dissipation unit 20 includes a condenser 18 and a radiator 19 that are detachably installed on the vehicle frame, and the condenser 18 and the radiator 19 are detachably connected to each other. Specifically, the condenser 18 and the radiator 19 are provided in a supporting manner with a fuel engine heat dissipation system, a new energy component cooling system, an air conditioning system, a battery cooling system, etc., so as to realize the function of providing a cold source or heat dissipation.

[0031] Most traditional small and medium-sized construction machinery, special operation equipment, and vehicles use diesel engines as power sources, with few components and relatively simple vehicle assembly. New energy small and medium-sized construction machinery, special operation equipment, and vehicles have complex structures, numerous and discrete components, and different heat dissipation requirements. This has greatly increased the difficulty of vehicle assembly, with complex assembly processes and long overall vehicle assembly times. The vehicle powertrain provided by the present utility model integrates a power supply unit, a controller unit, a heat dissipation unit 20, etc. on the vehicle frame, enabling new energy components and their attached pipelines to be detached from the vehicle frame and pre-assembled. Specifically, the assembly of new energy system components does not depend on the vehicle platform, can be independent of the vehicle assembly line, can be assembled and functionally tested at a sub-assembly line or sub-assembly factory, and then assembled onto the vehicle frame to complete the merger, reducing the vehicle assembly process and greatly improving the vehicle assembly efficiency. Moreover, during vehicle assembly, only the vehicle powertrain needs to be assembled onto the vehicle frame and the interface pipelines connected to make the assembly operate, greatly reducing the vehicle assembly difficulty of new energy small and medium-sized construction machinery, special operation equipment, and vehicles.

[0032] Furthermore, after the entire vehicle powertrain is assembled, the function tests of the drive system, oil pump system, thermal management system, and battery system can be carried out without relying on the vehicle mechanism. This is convenient for early problem detection and reduces the risk of debugging and repair after vehicle assembly. The vehicle powertrain has completed the functional performance test before vehicle merger. As long as the vehicle interface is ensured to be consistent with the powertrain interface, it can be started and operated, which is beneficial to improving the first start success rate and reducing the vehicle debugging and repair risk.

[0033] Further, the vehicle powertrain provided by the present utility model has high integration, high space utilization, and high power density. It has relatively low requirements for the vehicle layout space, which can improve the design flexibility of the vehicle, especially the working mechanism. It should be noted that specifically, when referring to the high power density of the present utility model, the entire vehicle powertrain includes a 35kW fuel power generation system, a 50kW oil pump system, a 5kW air-conditioning electric compressor, and a 140kW traveling system, with a cumulative power of 230kW. Under the same volume, the power of a fuel engine is only 75 to 95kW. It can be seen that the power density of this solution is higher than that of the traditional fuel solution.

[0034] As a preferred embodiment of the present utility model, the power supply unit, the controller unit, the heat dissipation unit 20, etc. can be directly connected together through their own structures. Or, as another preferred embodiment, a combined bracket 1 is detachably connected to the vehicle frame, and the power supply unit, the vehicle controller, the traveling controller, the condenser 18, and the radiator 19 can all be detachably installed on the combined bracket 1. Taking the combined bracket 1 as the basic unit, the connection of each structure is completed, thereby realizing pre-assembly. And preferably, a bracket shock pad is provided at the connection between the combined bracket 1 and the vehicle frame, preferably a rubber shock pad, which is used to isolate the vibration of the new energy powertrain from being transmitted to the vehicle frame.

[0035] When the power supply unit can be an extended-range power generation system, the power supply unit includes a generator 10, an engine 7, and an intake and exhaust mechanism. The generator 10, the engine 7, and the intake and exhaust mechanism are combined into a power generation unit 2. The generator 10 and the engine 7 are both detachably connected to the combined bracket 1. The rotor of the generator 10 is detachably connected to the crankshaft output end of the engine 7. Preferably, the rotor of the generator 10 and the crankshaft output end of the engine 7 are connected by a flange. The stator of the generator 10 is detachably connected to the flywheel housing of the engine 7. Preferably, it is connected by bolts, etc. And a sealing ring is provided at the joint surface between the stator of the generator 10 and the flywheel housing of the engine 7. Preferably, a rubber sealing ring, etc. is used. And the housing part of the generator 10 and the intake and exhaust mechanism are both detachably connected to the housing part of the engine 7. Preferably, it is connected by bolts, etc., to complete the integrated connection between the engine 7, the engine 7, and the intake and exhaust mechanism, and then it can be integrally installed on the combined bracket 1.

[0036] Among them, the power supply unit composed of the generator 10 and the engine 7 is located above the combined bracket 1. The bottom of the generator 10 is supported by a plurality of generator shock pads 9 detachably connected to the combined bracket 1. The generator shock pads 9 are detachably connected to the housing part of the engine 7. Preferably, it is connected by bolts. The bottom of the engine 7 is supported by a plurality of engine shock pads 8 detachably connected to the combined bracket 1. The engine shock pads 8 are detachably connected to the housing part of the generator 10. Preferably, it is connected by bolts. The generator 10 is connected to the combined bracket 1 through the generator shock pads 9 and has a shock-absorbing effect. The engine 7 is connected to the combined bracket 1 through the engine shock pads 8 and has a shock-absorbing effect. Further, through the connection between the generator shock pads 9 and the engine 7, and the connection between the engine shock pads 8 and the generator 10, the stability of the connection between the generator 10 and the engine 7 is ensured.

[0037] Moreover, the intake and exhaust mechanism includes an intercooler 5 detachably connected to the housing part of the engine 7. Preferably, the intercooler 5 is fastened to the engine 7 by bolts. The intake port of the intercooler 5 is communicated with the turbocharger of the engine 7. Preferably, it is communicated through an intake silica gel tube 6. The outlet port of the intercooler 5 is communicated with the intake manifold of the engine 7. Preferably, it is communicated through an intercooling silica gel tube 4.

[0038] As a preferred embodiment of the present utility model, the power supply unit further includes an oil pump motor 16, an oil pump reducer 13, and a gear oil pump 17 whose power is transmitted in sequence. The oil pump motor 16, the oil pump reducer 13, and the gear oil pump 17 are combined into an oil pump unit 11. Specifically, the output shaft of the oil pump motor 16 is transmitted to the oil pump reducer 13 through a spline, and the gear oil pump 17 obtains power from the oil pump reducer 13 through a spline. The housing parts of the oil pump reducer 13 and the oil pump motor 16 are detachably connected to the lower part of the combined bracket 1, for example, by bolt connection, etc., and the housing parts of the oil pump motor 16 and the gear oil pump 17 are detachably connected to the housing part of the oil pump reducer 13, for example, by bolt connection, etc.

[0039] Among them, a reducer front mount 12 and a reducer rear mount 15 are connected between the housing part of the oil pump reducer 13 and the combined bracket 1. Preferably, both the reducer front mount 12 and the reducer rear mount 15 are connected to the oil pump reducer 13 by bolts, and the reducer front mount 12 and the reducer rear mount 15 are distributed on both sides of the oil pump reducer 13; an oil pump motor mount 14 is connected between the oil pump motor 16 and the combined bracket 1. Preferably, the oil pump motor mount 14 is connected to the oil pump motor 16 by bolts. By setting the reducer front mount 12 and the reducer rear mount 15, a shock-absorbing connection is formed between the oil pump reducer 13 and the combined bracket 1, and by setting the oil pump motor mount 14, a shock-absorbing connection is formed between the oil pump motor mount 14 and the combined bracket 1.

[0040] Preferably, the condenser 18 is fixed to the radiator 19 by bolts to form a heat dissipation unit 20, and then it is assembled to the combined bracket 1. Specifically, the radiator 19 and the combined bracket 1 are connected by bolts to integrate the heat dissipation unit 20 with the power supply unit and the controller unit. And the condenser 18 is equipped with an electric compressor for defrosting, which is connected to the combined bracket 1 by bolts. Further, the heat dissipation unit 20 is equipped with high-voltage cables, cooling pipelines, a coolant replenishment kettle, refrigerant pipelines, an electric air-conditioning compressor, etc., which are connected according to functional divisions.

[0041] When the power supply unit can be a lithium battery power generation system, the power supply unit includes a lithium battery assembly, and the lithium battery assembly is detachably installed on the combined bracket 1 to realize the integrated setting of the power supply unit with the controller unit and the heat dissipation unit 20. Specifically, the housing structure of the lithium battery assembly is bolted to the combined bracket 1 for easy disassembly and assembly.

[0042] Furthermore, an engineering construction machinery device is also provided, which includes a vehicle frame, on which a vehicle power assembly is installed. The vehicle power assembly includes a power supply unit, a controller unit and a heat dissipation unit 20 integrated together. Preferably, a combined bracket 1 is installed on the vehicle frame, and the vehicle power assembly is installed on the combined bracket 1. In the present utility model, the vehicle power assembly is assembled on the vehicle frame, which greatly reduces the assembly difficulty of new energy medium and small-sized engineering construction machinery, special operation equipment and vehicle, and improves the assembly efficiency.

[0043] Adaptability changes made according to actual requirements are all within the protection scope of the present utility model.

[0044] It should be noted that for those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0045] In the present utility model, specific examples are used to elaborate the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be understood as a limitation to the present utility model.

Claims

1. A vehicle powertrain, characterized in that: The power train body comprises a power supply unit, a controller unit and a heat dissipation unit which are integrated together, and the power train body can be detachably mounted on a vehicle frame; The powertrain body comprises a combined bracket detachably mounted on the frame, and a bracket shock-absorbing pad is provided at the connection between the combined bracket and the frame, and the power supply unit, the controller unit and the heat dissipation unit can all be detachably mounted on the combined bracket; The power supply unit includes a generator, an engine and an intake and exhaust mechanism; the generator and the engine are both detachably connected to the combined bracket; the rotor of the generator is detachably connected to the crankshaft output end of the engine, the stator of the generator is detachably connected to the flywheel housing of the engine, and the housing part of the generator and the intake and exhaust mechanism are both detachably connected to the housing part of the engine.

2. The vehicle powertrain according to claim 1, characterized in that: The generator is located above the combined bracket, and the bottom of the generator supports a plurality of generator shock-absorbing pads detachably connected to the combined bracket, and the generator shock-absorbing pads are detachably connected to the housing portion of the engine; The engine is located above the combined bracket, and the bottom of the engine supports a plurality of engine shock-absorbing pads detachably connected to the combined bracket, and the engine shock-absorbing pads are detachably connected to the housing portion of the generator.

3. The vehicle powertrain according to claim 2, characterized in that: The air intake and exhaust mechanism comprises an intercooler detachably connected to the engine housing portion, the air intake of the intercooler is connected to the turbocharger of the engine, and the air outlet of the intercooler is connected to the intake manifold of the engine.

4. The vehicle powertrain according to claim 3, characterized in that: The power supply unit also includes an oil pump motor, an oil pump reducer and a gear oil pump for sequentially transmitting power. The shell parts of the oil pump reducer and the oil pump motor can be detachably connected below the combined bracket, and the shell parts of the oil pump motor and the gear oil pump can be detachably connected to the shell part of the oil pump reducer.

5. The vehicle powertrain according to claim 4, characterized in that: A reducer front suspension and a reducer rear suspension are connected between the housing portion of the oil pump reducer and the combined bracket, and the reducer front suspension and the reducer rear suspension are distributed on both sides of the oil pump reducer; An oil pump motor suspension is connected between the oil pump motor and the combined bracket.

6. The vehicle powertrain according to claim 1, characterized in that: The power supply unit comprises a lithium battery assembly, and the lithium battery assembly is detachably mounted on the combined bracket.

7. The vehicle powertrain according to claim 1 or 6, characterized in that: The controller unit includes a vehicle controller and a travel controller which are detachably mounted on the combined bracket, and the heat dissipation unit includes a condenser and a radiator which are detachably mounted on the combined bracket, and the condenser is detachably connected to the radiator.

8. An engineering machinery equipment using the vehicle powertrain according to any one of claims 1 to 7, characterized in that: It comprises a vehicle frame, on which the vehicle powertrain is mounted, and the vehicle powertrain comprises a power supply unit, a controller unit and a heat dissipation unit which are integrated together.

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