Power unit for overhead working truck

Abstract

A power unit for an overhead working truck relates to the technical field of overhead working trucks and comprises a front box body and a rear box body, the front box body comprises a front bottom plate, a panel on the front side, a mounting plate on the rear side, two front side plates and a front top plate, a power battery charger and a DC-DC converter are arranged on one side of the mounting plate, and a working truck chassis controller is arranged in the middle of the mounting plate. The rear box body comprises a rear bottom plate, four rear side plates and a rear top plate, a partition plate is arranged among the rear side plates and divides the rear box body into an upper space and a lower space, the lower space is large, a power battery cell is arranged in the lower space, a pre-charging contactor is arranged on the partition plate, and the power battery cell is connected with the pre-charging contactor. A power battery charging port and a power battery output port are formed in a rear side plate, close to the front box body, above the partition plate. All electrical components of the power unit are neatly and orderly arranged in the space of the box body, so that external wiring is reduced, the overall size of the system is smaller and more compact, the system is concise and attractive, the system is rainproof, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work vehicles, in particular to a power unit for aerial work vehicles. Background Art

[0002] Aerial work vehicles refer to special vehicles used to transport workers and equipment to the site and perform aerial operations. The height position of the aerial work platform can be adjusted through the lifting arm on the aerial work vehicle, so that personnel can ride on the aerial work platform to perform high-altitude construction or maintenance work.

[0003] In addition to the chassis, aerial work vehicles also have power transmission devices, working devices, safety devices and hydraulic systems to achieve their aerial work functions. Common power transmission devices include internal combustion engine-mechanical transmission, electric-mechanical transmission, internal combustion engine-electric transmission, internal combustion engine-hydraulic transmission and other transmission methods. Among them, electric-mechanical transmission uses external power supply or vehicle power supply to convert electrical energy into mechanical energy through electric motors, and then transmits power to each working device through mechanical transmission devices. Since the electric motor has the characteristics of reversibility and stepless speed regulation within a large speed range, and each mechanism can be driven by an independent motor, the transmission and operating mechanism are simplified, and the noise and pollution are less, which is suitable for site operations where external power supply is convenient or mobility is not large.

[0004] However, existing electric-mechanical transmission power units have some problems. There are a large number of electrical components and many of them are exposed, resulting in a lot of external wiring, which is very messy and cannot be protected from rain, posing a safety hazard. In addition, the overall size of the system is large and takes up a lot of space in the vehicle. Utility Model Content

[0005] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art and to provide a power unit for an aerial work vehicle. All electrical components are neatly and orderly built-in in several spaces of a box body, reducing external wiring. The overall size of the system is smaller and more compact, and it appears simple and beautiful. It occupies less space in the vehicle, and can be rainproof, reducing safety hazards.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A power unit for aerial work vehicles, including a front box and a rear box, the front box including a front bottom plate, a front panel, a rear mounting plate, two left and right front side plates and a front top plate, one side of the mounting plate is provided with a power battery charger and a DC-DC converter distributed up and down, a chassis controller of the work vehicle is provided in the middle, and a pump station motor driver is provided on the other side. The rear box includes a rear bottom plate, four rear side plates of front, back, left and right, and a rear top plate, a partition is provided between the rear side plates, the partition divides the rear box into two spaces, the lower space is larger, and a power battery cell is provided therein, a pre-charge contactor is provided on the partition, and a power battery charging port and a power battery output port are provided on the rear side plate above the partition near the front box. The power battery charger and the DC-DC converter charge the power supply unit of the vehicle control system, the chassis controller of the work vehicle can be connected to the vehicle control systems of various brands and models, and control each actuator to perform tasks, and the pump station motor driver is used to drive the operation of the pump station motor of the work vehicle. The pre-charge contactor required for the pump station motor driver is built into the battery compartment to reduce external wiring, making the overall size of the system smaller and convenient for compatibility with a variety of vehicle models. The power battery charging port and power battery output port are located on the side of the partition close to the front box, and the corresponding electrical components and power battery cells are connected by cables.

[0008] Preferably, a liquid crystal instrument and several control buttons are provided on the panel, and a battery communication port is provided on the rear side panel above the partition close to the front box body. The liquid crystal instrument displays the operating status of the power unit, the control buttons control the operation of the power unit, and the signal is transmitted through a cable connected to the battery communication port.

[0009] Preferably, the front bottom plate is provided with a cable hole, and the edge of the partition is provided with a plurality of notches. The external cables of the power unit are routed through the cable holes of the front bottom plate, and the cables of the battery compartment are routed through the notches at the edge of the partition.

[0010] Preferably, a heat dissipation louver is provided on one of the front side panels, and a heat dissipation fan is provided inside the heat dissipation louver for dissipating the heat of the front box body to reduce safety hazards.

[0011] Preferably, a battery fuse module is provided above the partition to provide overload protection.

[0012] Preferably, a certain number of parallel distributed cross beams are arranged below the partition, fixing plates with bolts are arranged at both ends of the cross beams, corresponding nut columns are arranged on the inner wall of the rear side plate, and the cross beams are fixed to the nut columns by bolts.

[0013] Preferably, at least two raised support platforms are provided above the crossbeam, and the bottom surface of the partition plate abuts against the top surface of the support platform.

[0014] Preferably, a fire-retardant plate is provided on the inner wall of the rear side plate below the partition to reduce safety hazards.

[0015] Preferably, the front bottom plate, two left and right front side plates and the front top plate of the front box body are integrally formed, the rear bottom plate and four front, rear, left and right rear side plates of the rear box body are integrally formed, and the rear top plate extends forward to cover the front top plate, making the system as a whole more sealed and compact, and having a good rainproof effect.

[0016] Preferably, the bottom of the front box body and the rear box body are provided with anchor plates, and the anchor plates are provided with bolt holes for installation and fixation of the power unit.

[0017] The advantages of the utility model are that all electrical components are neatly and orderly built into several spaces of the box body, reducing external wiring, making the overall size of the system smaller and more compact, appearing simple and beautiful, occupying less space in the vehicle, and being rainproof, reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional Figure 1 ;

[0019] Figure 2 The three-dimensional Figure 2 ;

[0020] Figure 3 The utility model hides part of the three-dimensional box behind Figure 1 ;

[0021] Figure 4 The utility model hides part of the three-dimensional box behind Figure 2 ;

[0022] Figure 5 The utility model hides part of the three-dimensional box behind Figure 3 ;

[0023] Figure 6 for Figure 5 The enlarged schematic diagram of point A in the middle;

[0024] Figure 7 It is a three-dimensional cross-sectional view of the utility model.

[0025] Description of the main component symbols in the figure:

[0026] 10. Front box; 11. Front bottom plate; 11.1. Cable hole; 12. Panel; 13. Mounting plate; 14. Front side plate; 15. Front top plate; 16. LCD instrument; 17. Control button; 18. Heat dissipation shutter; 19. Cooling fan;

[0027] 20. Rear box; 21. Rear bottom plate; 22. Rear side plate; 23. Rear top plate; 24. Partition plate; 24.1. Notch; 25. Pre-charge contactor; 26. Power battery charging port; 27. Power battery output port; 28. Battery communication port; 29. ​​Battery fuse module; 210. Crossbeam; 210.1. Fixing plate; 210.2. Support platform; 211. Nut column; 212. Fire retardant plate;

[0028] 31. Power battery charger; 32. DC-DC converter; 33. Operation vehicle chassis controller; 34. Pump station motor driver;

[0029] 40. Anchor plate. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0031] Embodiment 1: Figure 1-4 and Figure 7 As shown, a power unit for an aerial work vehicle comprises a front box body 10 and a rear box body 20, wherein the front box body 10 comprises a front bottom plate 11, a front panel 12, a rear mounting plate 13, two left and right front side plates 14 and a front top plate 15, a power battery charger 31 and a DC-DC converter 32 distributed vertically are arranged on one side of the mounting plate 13, a work vehicle chassis controller 33 is arranged in the middle, and a pump station motor driver 34 is arranged on the other side.

[0032] The rear box body 20 includes a rear bottom plate 21, four rear side plates 22 on the front, back, left and right sides, and a rear top plate 23. A partition 24 is arranged between the rear side plates 22. The partition 24 divides the rear box body 20 into two upper and lower spaces. The lower space is larger and a power battery cell is arranged therein. A pre-charging contactor 25 is arranged on the partition 24. A power battery charging port 26 and a power battery output port 27 are arranged on the rear side plate 22 above the partition 24 and close to the front box body 10.

[0033] The panel 12 is provided with a liquid crystal instrument 16 and a plurality of control buttons 17 , and a battery communication port 28 is provided on the rear side panel 22 above the partition 24 and close to the front box body 10 .

[0034] In addition, a cable hole 11.1 is provided on the front bottom plate 11, and a plurality of notches 24.1 are provided on the edge of the partition plate 24.

[0035] Embodiment 2: Combination Figure 1 and Figure 3 As shown, on the basis of the first embodiment, a heat dissipation louver 18 is provided on one of the front side panels 14 , and a heat dissipation fan 19 is provided inside the heat dissipation louver 18 .

[0036] A battery fuse module 29 is disposed above the partition 24 .

[0037] Example 3: Combination Figure 5-6 As shown, based on the first or second embodiment, a certain number of parallel beams 210 are arranged below the partition 24, fixing plates 210.1 with bolts are arranged at both ends of the beams 210, and corresponding nut columns 211 are arranged on the inner wall of the rear side plate 22.

[0038] Among them, at least two protruding support platforms 210.2 are arranged above the crossbeam 210, and the bottom surface of the partition plate 24 abuts against the top surface of the support platform 210.2.

[0039] Embodiment 4: Combination Figure 6-7 As shown, on the basis of the first embodiment, the second embodiment or the third embodiment, a fireproof and flame-retardant plate 212 is provided on the inner wall of the rear side plate 22 below the partition plate 24 .

[0040] Embodiment 5: Based on the above embodiment, the front bottom plate 11, the two left and right front side plates 14 and the front top plate 15 of the front box body 10 are integrally formed, and the rear bottom plate 21 and the four rear side plates 22 of the rear box body 20 are integrally formed. Figure 1 and Figure 7 As shown, the rear top plate 23 extends forward to cover the front top plate 15. In addition, in combination with Figure 1-2 As shown, the bottom of the front box body 10 and the bottom of the rear box body 20 are provided with a ground fixing plate 40 .

[0041] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. The present invention can be used on similar products. Any changes or modifications made by any technician in the field of the present invention are covered by the patent scope of the present invention.

Claims

1. A power unit for an aerial work vehicle, characterized in that: The invention comprises a front box body (10) and a rear box body (20), wherein the front box body (10) comprises a front bottom plate (11), a front panel (12), a rear mounting plate (13), two left and right front side plates (14) and a front top plate (15), a power battery charger (31) and a DC-DC converter (32) arranged in upper and lower distributions are arranged on one side of the mounting plate (13), a working vehicle chassis controller (33) is arranged in the middle, and a pump station motor driver (34) is arranged on the other side; The rear box body (20) comprises a rear bottom plate (21), four rear side plates (22) in front, rear, left and right, and a rear top plate (23); a partition plate (24) is arranged between the rear side plates (22); the partition plate (24) divides the rear box body (20) into two upper and lower spaces; the lower space is larger and contains a power battery cell; a pre-charging contactor (25) is arranged on the partition plate (24); and a power battery charging port (26) and a power battery output port (27) are arranged on the rear side plate (22) above the partition plate (24) and close to the front box body (10).

2. The power unit for aerial work vehicle according to claim 1, characterized in that: A liquid crystal instrument (16) and a plurality of control buttons (17) are arranged on the panel (12), and a battery communication port (28) is arranged on the rear side panel (22) above the partition (24) and close to the front box body (10).

3. A power unit for an aerial work vehicle according to claim 2, characterized in that: The front bottom plate (11) is provided with a cable hole (11.1), and the edge of the partition plate (24) is provided with a plurality of notches (24.1).

4. The power unit for aerial work vehicle according to claim 1, characterized in that: A heat dissipation louver (18) is provided on one of the front side panels (14), and a heat dissipation fan (19) is provided inside the heat dissipation louver (18).

5. The power unit for aerial work vehicle according to claim 1, characterized in that: A battery fuse module (29) is arranged above the partition (24).

6. The power unit for aerial work vehicle according to claim 1, characterized in that: A certain number of parallel distributed cross beams (210) are arranged below the partition plate (24), fixing plates (210.1) with bolts are arranged at both ends of the cross beam (210), and corresponding nut columns (211) are arranged on the inner wall of the rear side plate (22).

7. A power unit for an aerial work vehicle according to claim 6, characterized in that: At least two raised support platforms (210.2) are arranged above the crossbeam (210), and the bottom surface of the partition plate (24) abuts against the top surface of the support platform (210.2).

8. The power unit for aerial work vehicle according to claim 1, characterized in that: The inner wall of the rear side plate (22) below the partition plate (24) is provided with a fireproof and flame-retardant plate (212).

9. A power unit for an aerial work vehicle according to any one of claims 1 to 8, characterized in that: The front bottom plate (11), the two left and right front side plates (14) and the front top plate (15) of the front box body (10) are integrally formed, the rear bottom plate (21) and the four rear side plates (22) of the rear box body (20) are integrally formed, and the rear top plate (23) extends forward to cover the front top plate (15).

10. A power unit for an aerial work vehicle according to claim 9, characterized in that: The bottoms of the front box body (10) and the rear box body (20) are provided with anchor fixing plates (40).

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