Double-source power excavator

Abstract

The utility model discloses a double-source power excavator, and belongs to the technical field of engineering machinery. Through the arrangement of the auxiliary power supply module and the power battery II in the vehicle-mounted module, the vehicle-mounted module can be independently powered by the auxiliary power supply module or the power battery II in the vehicle-mounted module, or the auxiliary power supply module and the power battery II in the vehicle-mounted module simultaneously supply power to the vehicle-mounted module; the requirement for long-time operation of a large-tonnage new energy excavator can be met, and the problem that in the prior art, long-time operation of equipment cannot be met is solved. And the auxiliary power supply module is configured to be a movable auxiliary power supply module, so that when the equipment is transferred or no external power supply works, the equipment can work all the time by being connected with the auxiliary power supply module without waiting for access of the auxiliary power supply module.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering machinery, in particular to a dual-source power excavator. Background Art

[0002] With the growing global emphasis on environmental protection and energy efficiency, the use of new energy equipment is becoming increasingly widespread, especially in large-scale machinery such as excavators. However, these devices typically require a large power supply, which poses challenges to their mobility and operational life. Traditional solutions typically rely on connecting to the power grid via cables. However, this approach is inconvenient when equipment is being moved or operating for extended periods, and requires a nearby power grid. However, grid construction is expensive and time-consuming, making it difficult to meet user needs in a short period of time. Furthermore, equipment requires frequent relocation, making it difficult for the power grid to be readily available.

[0003] Existing technical solutions primarily rely on internal batteries or external power sources to power the equipment. Power sources vary, including 6kV / 380V / 220V AC or DC output from energy storage batteries. This approach can address equipment relocation issues to a certain extent and allows for off-grid operation.

[0004] While power can be provided by batteries or external dragline radial sources, this approach may not be sufficient for the long-term operation of large-tonnage equipment. Secondly, due to the mobility requirements of equipment, the need for cable-free operation is increasing in short-haul scenarios, and existing technical solutions still need improvement in this regard. Finally, existing radial sources are relatively simple and cannot meet the power needs of different equipment or environments. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] The purpose of the utility model is to solve the problem that existing engineering machinery is difficult to disconnect from the power grid and realize fast and multi-mode power supply.

[0007] 2. Technical solution

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the present utility model is:

[0009] The utility model discloses a dual-source power excavator, comprising

[0010] An auxiliary power supply module and an on-board module, wherein the auxiliary power supply module is configured as a movable auxiliary power supply module; the auxiliary power supply module is electrically connected to the high-voltage box BDU of the on-board module through a wiring module to supply power to the on-board module, and the on-board module includes a power battery 2 electrically connected to the high-voltage box BDU, and the power battery 2 is electrically connected to a thermal management unit TMS.

[0011] Preferably, the auxiliary power module includes a power battery 1 and a DCDC 1, and the power battery 1 is electrically connected to the wiring module through the DCDC 1.

[0012] Preferably, the wiring module includes a reel and a slip ring.

[0013] Preferably, the high-voltage box BDU is electrically connected to the all-in-one controller and the second motor controller, and the all-in-one controller includes the high-voltage box PDU, the first motor controller and the second DCDC.

[0014] Preferably, the high-voltage box PDU is electrically connected to a compressor and an electric heating PTC.

[0015] Preferably, the motor controller 1 is electrically connected to the motor 2.

[0016] Preferably, the DCDC is electrically connected to a battery.

[0017] Preferably, the second motor controller is electrically connected to the first motor.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0020] The utility model discloses a dual-source power excavator. By providing an auxiliary power module and a second power battery within the vehicle module, the vehicle module can be powered solely by the auxiliary power module or the second power battery within the vehicle module, or both can be used simultaneously. This can meet the long-term operation requirements of large-tonnage new energy excavators, resolving the problem of existing equipment being unable to meet these requirements. Furthermore, the auxiliary power module is configured as a removable auxiliary power module. When the equipment is being transferred or operating without an external power source, it can continue operating by simply connecting to the auxiliary power module without having to wait for it to be connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural schematic diagram of a dual-source power excavator.

[0022] Explanation of the numbers in the schematic diagram:

[0023] 100, auxiliary power module; 110, power battery 1; 120, DCDC 1;

[0024] 200, wiring module; 210, reel; 220, slip ring;

[0025] 300, on-board module; 310, all-in-one controller; 311, high-voltage box PDU; 312, motor controller 1; 313, DCDC 2; 320, high-voltage box BDU; 330, compressor; 340, electric heating PTC; 350, power battery 2; 360, thermal management unit TMS; 370, motor controller 2; 380, battery; 391, motor 2; 392, motor 1. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0029] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Example 1

[0033] Refer to the attached Figure 1 A dual-source power excavator according to this embodiment includes

[0034] The auxiliary power module 100 and the onboard module 300 are configured as a removable auxiliary power module 100. The auxiliary power module 100 is electrically connected to the high-voltage box BDU 320 of the onboard module 300 via the wiring module 200 to power the onboard module 300. The onboard module 300 includes a second power battery 350 electrically connected to the high-voltage box BDU 320, and the second power battery 350 is electrically connected to a thermal management unit TMS 360. By providing the auxiliary power module 100 and the second power battery 350 within the onboard module 300, the excavator of this embodiment can power the onboard module 300 through either the auxiliary power module 100 or the second power battery 350 within the onboard module 300, or through both the auxiliary power module 100 and the second power battery 350 within the onboard module 300. This can meet the long-term operation requirements of large-tonnage new energy excavators, solving the problem that existing equipment cannot meet the long-term operation requirements. Furthermore, the auxiliary power module 100 is configured as a movable auxiliary power module 100 . When the device is transferred or working without an external power source, there is no need to wait for it to be connected, and the device can continue to work by connecting the auxiliary power module 100 .

[0035] The auxiliary power module 100 includes a power battery 110 and a DC-DC converter 120. The power battery 110 is electrically connected to the wiring module 200 via the DC-DC converter 120. The wiring module 200 includes a reel 210 and a slip ring 220. The reel 210 and slip ring 220 work together to conveniently transmit power from the power battery 110 to the onboard module 300, thereby supplying the systems within the onboard module 300. The high-voltage power supply (BDU) 320 is electrically connected to the all-in-one controller 310 and the motor controller 2 270. The all-in-one controller 310 includes a high-voltage power supply (PDU) 311, a motor controller 1 312, and a DC-DC converter 2 313. The high-voltage power supply (PDU) 311 is electrically connected to a compressor 330 and an electric heater (PTC) 340. The motor controller 1 312 is electrically connected to a motor 2 391. The DC-DC converter 2 313 is electrically connected to a battery 380. The motor controller 2 270 is electrically connected to a motor 1 392. The all-in-one controller 310 facilitates control and management of the battery 380 , the second motor 391 , the compressor 330 and the electric heating PTC 340 , making the overall structure more concise and efficient.

[0036] The above-mentioned embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, which all fall within the scope of protection of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A dual-source power excavator, characterized by: include An auxiliary power supply module (100) and an on-board module (300), wherein the auxiliary power supply module (100) is configured as a movable auxiliary power supply module (100); the auxiliary power supply module (100) is electrically connected to a high-voltage box BDU (320) of the on-board module (300) through a wiring module (200) to supply power to the on-board module (300); the on-board module (300) includes a second power battery (350) electrically connected to the high-voltage box BDU (320); and the second power battery (350) is electrically connected to a thermal management unit TMS (360).

2. A dual-source power excavator according to claim 1, characterized in that: The auxiliary power supply module (100) comprises a power battery (110) and a DC-DC converter (120), wherein the power battery (110) is electrically connected to the connection module (200) via the DC-DC converter (120).

3. The dual-source power excavator according to claim 1, characterized in that: The junction module (200) comprises a reel (210) and a collector ring (220).

4. The dual-source power excavator according to claim 1, characterized in that: The high-voltage box BDU (320) is electrically connected to the all-in-one controller (310) and the motor controller 2 (270), and the all-in-one controller (310) includes a high-voltage box PDU (311), a motor controller 1 (312) and a DCDC 2 (313).

5. The dual-source power excavator according to claim 4, characterized in that: The high-voltage box PDU (311) is electrically connected to a compressor (330) and an electric heating PTC (340).

6. The dual-source power excavator according to claim 4, characterized in that: The motor controller 1 (312) is electrically connected to the motor 2 (391).

7. The dual-source power excavator according to claim 4, characterized in that: The DCDC 2 (313) is electrically connected to a battery (380).

8. The dual-source power excavator according to claim 4, characterized in that: The motor controller 2 (270) is electrically connected to the motor 1 (392).

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