Power system for dumper and wide-body dumper

Abstract

The utility model belongs to the technical field of battery heat exchange, and particularly relates to a dumper power system and a wide-body dumper, the dumper power system comprises a first thermal management machine, a second thermal management machine and a connecting water pipe, a first battery power pack is arranged below the first thermal management machine, a second battery power pack is arranged below the second thermal management machine, and the connecting water pipe is connected with the first thermal management machine. A hot water distribution pipe is arranged on one side of the first battery power pack and one side of the second battery power pack, a cold water distribution pipe is arranged on the other side of the first battery power pack and the other side of the second battery power pack, and a first drain valve and a second drain valve are symmetrically arranged on the hot water distribution pipe. The first heat management machine and the second heat management machine are connected with the cold water distribution pipe through connecting water pipes, and the first heat management machine and the second heat management machine are further connected with the hot water distribution pipe through connecting water pipes, so that the problem that the arrangement of the heat management device becomes more and more complicated along with the increase of the number of the battery packs is solved; and the effect of waterway circulation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery heat exchange technical field especially is a kind of power system and wide-body dump truck for wide-body dump truck. BACKGROUND

[0002] Electric wide-body car is a heavy-duty dump truck specially designed for off-highway transportation, mainly used for material transportation in open-pit mine, construction, water conservancy engineering and other fields, and adopts lithium battery or hydrogen fuel cell as power source.

[0003] At present, with the wide application of electric wide-body car in open-pit mine, construction, water conservancy engineering and other fields, its demand for electricity is increasing. In order to meet the requirements of vehicle endurance and power, the number of power battery pack is increasing, resulting in large overall layout span.

[0004] However, electric wide-body car usually has multiple power battery packs, which are distributed at different positions of the vehicle to ensure the balance and stability of the vehicle. However, with the increase of the number of battery packs, the arrangement of the heat management device becomes more and more complex.

[0005] Therefore, it is necessary to provide a power system for dump truck and wide-body dump truck. SUMMARY

[0006] Therefore, the utility model provides a power system for dump truck and wide-body dump truck.

[0007] The utility model solves the technical scheme that the technical problem it adopts: provide a power system for dump truck, including first heat management machine, second heat management machine and connecting water pipe, first battery power group is provided below the first heat management machine, second battery power group is provided below the second heat management machine, one side of the first battery power group and the second battery power group is provided with hot water distribution pipe, the other side of the first battery power group and the second battery power group is provided with cold water distribution pipe, first drain valve and second drain valve are provided on the hot water distribution pipe symmetry, the first heat management machine and second heat management machine are connected with cold water distribution pipe through connecting water pipe, the first heat management machine and second heat management machine are also connected with hot water distribution pipe through connecting water pipe, the first battery power group and second battery power group are connected with cold water distribution pipe and hot water distribution pipe through connecting water pipe respectively.

[0008] The utility model further sets up, the first battery power group includes first battery power pack, second battery power pack, third battery power pack, fourth battery power pack.

[0009] The utility model further sets up, first battery power pack, second battery power pack, third battery power pack, fourth battery power pack set in first heat management machine's below in proper order, first battery power pack, second battery power pack, third battery power pack, fourth battery power pack all are connected with cold water distribution pipe through connecting water pipe.

[0010] The utility model further sets up, first battery power pack, second battery power pack, third battery power pack, fourth battery power pack still are connected with hot water distribution pipe through connecting water pipe

[0011] The utility model further sets up, second battery power pack includes fifth battery power pack, sixth battery power pack, seventh battery power pack, eighth battery power pack.

[0012] The utility model further sets up, fifth battery power pack, sixth battery power pack, seventh battery power pack, eighth battery power pack set in second heat management machine's below in proper order, fifth battery power pack, sixth battery power pack, seventh battery power pack, eighth battery power pack all are connected with cold water distribution pipe through connecting water pipe.

[0013] The utility model further sets up, fifth battery power pack, sixth battery power pack, seventh battery power pack, eighth battery power pack still are connected with hot water distribution pipe through connecting water pipe.

[0014] The utility model further sets up, the side of first heat management machine is provided with first vice water tank, and first vice water tank is connected first heat management machine and hot water distribution pipe respectively through connecting water pipe.

[0015] The utility model further sets up, the side of second heat management machine is provided with second vice water tank, and second vice water tank is connected second heat management machine and hot water distribution pipe respectively through connecting water pipe, and the shape of cold water distribution pipe and hot water distribution pipe is U shape.

[0016] The utility model still provides a wide body dump truck, the wide body dump truck includes above-mentioned dump truck power system.

[0017] The utility model has the advantages of:

[0018] The utility model discloses a dump truck power system sets up first heat management machine and second heat management machine and carries out heat exchange cooling to first power battery pack and second power battery pack respectively, and sets up first power battery pack in the below of first heat management machine, sets up second power battery pack in the below of second heat management machine, improves heat exchange efficiency, saves the space of dump truck power system simultaneously. ACCURACY OF DRAWINGS

[0019] The utility model is further described below in combination with the drawings and examples.

[0020] Figure 1 It is a whole structure schematic view of a power system for a self-unloading vehicle.

[0021] Figure 2 It is Figure 1 Another view structure schematic view.

[0022] Figure 3 It is Figure 1 Shunt connection schematic view in

[0023] Mark explanation:

[0024] 1, first heat management machine;2, second heat management machine;3, first auxiliary water tank;4, second auxiliary water tank;5, first battery power group;51, first battery power pack;52, second battery power pack;53, third battery power pack;54, fourth battery power pack;6, cold water distribution pipe;7, hot water distribution pipe;8, first drain valve;9, second battery power group;91, fifth battery power pack;92, sixth battery power pack;93, seventh battery power pack;94, eighth battery power pack;10, second drain valve;11, connecting water pipe. Specific implementation

[0025] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, now combine the drawings to the utility model detailed description. This figure is simplified schematic view, only with the schematic way to illustrate the basic structure of the utility model, therefore it only shows the constitution related to the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are within the scope of the utility model protection.

[0026] As Figure 1 Shown, the utility model provides a kind of power system for self-unloading vehicle and wide-body self-unloading vehicle, a kind of power system for self-unloading vehicle, including first heat management machine 1, second heat management machine 2 and connecting water pipe 11, connecting water pipe 11 is used to connect each component, provide the condition of water flow circulation, first heat management machine 1 and second heat management machine 2 can convert incoming hot water into cold water, first heat management machine 1 and second heat management machine 2 are refrigeration equipment, can convert incoming hot water into cold water after flowing out.

[0027] The first thermal management machine 1 and the second thermal management machine 2 are cooled by refrigeration cycles, and a refrigeration compressor is responsible for compressing refrigerant into a high-temperature and high-pressure gas, and then sending it to a condenser for heat exchange, and after releasing heat, it becomes a liquid. The liquid refrigerant is cooled by the expansion valve, and then enters the evaporator, absorbs heat in the evaporator, and cools the hot water flowing through the evaporator.

[0028] The first battery power group 5 is arranged below the first thermal management machine 1, and the second battery power group 9 is arranged below the second thermal management machine 2. The first battery power group 5 and the second battery power group 9 are battery packs of the electric wide-body vehicle. In actual situations, the number of battery packs is large, and the span is large. One side of the first battery power group 5 and the second battery power group 9 is provided with a hot water distribution pipe 7. The hot water distribution pipe 7 transports the hot water in the first battery power group 5 and the hot water distribution pipe 7 to the first thermal management machine 1 and the second thermal management machine 2. The other side of the first battery power group 5 and the second battery power group 9 is provided with a cold water distribution pipe 6. The first thermal management machine 1 and the second thermal management machine 2 are connected with the cold water distribution pipe 6 through a connecting water pipe 11. The shapes of the cold water distribution pipe 6 and the hot water distribution pipe 7 are both U-shaped.

[0029] The first battery power group 5 and the second battery power group 9 are connected with the cold water distribution pipe 6 and the hot water distribution pipe 7 through the connecting water pipe 11. The cold water distribution pipe 6 transports the cold water converted in the first thermal management machine 1 and the second thermal management machine 2 to the first battery power group 5 and the second battery power group 9, respectively. The first drain valve 8 and the second drain valve 10 are symmetrically arranged on the hot water distribution pipe 7. The first drain valve 8 and the second drain valve 10 are used to discharge the hot water in the hot water distribution pipe 7. The connecting water pipe 11 transports the treated cold water in the first thermal management machine 1 and the second thermal management machine 2 to the first battery power group 5 and the second battery power group 9. The first thermal management machine 1 and the second thermal management machine 2 are also connected with the hot water distribution pipe 7 through the connecting water pipe 11. The connecting water pipe 11 transports the hot water in the first battery power group 5 and the second battery power group 9 to the first thermal management machine 1 and the second thermal management machine 2.

[0030] The first battery power group 5 includes a first battery power pack 51, a second battery power pack 52, a third battery power pack 53, and a fourth battery power pack 54. The second battery power pack 52 is arranged below the first battery power pack 51. The third battery power pack 53 is arranged below the second battery power pack 52. The fourth battery power pack 54 is arranged below the third battery power pack 53.

[0031] The first battery power pack 51, the second battery power pack 52, the third battery power pack 53 and the fourth battery power pack 54 are sequentially arranged below the first thermal management machine 1, and the first battery power pack 51, the second battery power pack 52, the third battery power pack 53 and the fourth battery power pack 54 are all connected with the cold water distribution pipe 6 through the connecting water pipe 11, and the hot water in the first battery power pack 51, the second battery power pack 52, the third battery power pack 53 and the fourth battery power pack 54 is transported to the cold water distribution pipe 6 through the connecting water pipe 11, and then the hot water is transported to the first thermal management machine 1 through the connecting water pipe 11.

[0032] The first battery power pack 51, the second battery power pack 52, the third battery power pack 53 and the fourth battery power pack 54 are also connected with the hot water distribution pipe 7 through the connecting water pipe 11, and when the hot water is cooled by the first thermal management machine 1, the cold water is transported to the hot water distribution pipe 7 through the connecting water pipe 11, and the hot water distribution pipe 7 transports the cold water to the first battery power pack 51, the second battery power pack 52, the third battery power pack 53 and the fourth battery power pack 54 through the connecting water pipe 11.

[0033] The second battery power group 9 includes a fifth battery power pack 91, a sixth battery power pack 92, a seventh battery power pack 93 and an eighth battery power pack 94.

[0034] The fifth battery power pack 91, the sixth battery power pack 92, the seventh battery power pack 93 and the eighth battery power pack 94 are sequentially arranged below the second thermal management machine 2, and the fifth battery power pack 91, the sixth battery power pack 92, the seventh battery power pack 93 and the eighth battery power pack 94 are all connected with the cold water distribution pipe 6 through the connecting water pipe 11, and the hot water in the fifth battery power pack 91, the sixth battery power pack 92, the seventh battery power pack 93 and the eighth battery power pack 94 is transported to the cold water distribution pipe 6 through the connecting water pipe 11, and then the hot water is transported to the second thermal management machine 2 through the connecting water pipe 11.

[0035] The fifth battery power pack 91, the sixth battery power pack 92, the seventh battery power pack 93 and the eighth battery power pack 94 are also connected with the hot water distribution pipe 7 through the connecting water pipe 11, and when the hot water is cooled by the second thermal management machine 2, the cold water is transported to the hot water distribution pipe 7 through the connecting water pipe 11, and the hot water distribution pipe 7 transports the cold water to the fifth battery power pack 91, the sixth battery power pack 92, the seventh battery power pack 93 and the eighth battery power pack 94 through the connecting water pipe 11.

[0036] The first battery power pack 51, the second battery power pack 52, the third battery power pack 53, the fourth battery power pack 54, the fifth battery power pack 91, the sixth battery power pack 92, the seventh battery power pack 93, and the eighth battery power pack 94 are internally provided with special heat management system components, such as liquid cooling plates, liquid cooling pipes, heat-conducting pads, temperature sensors, etc. The liquid cooling plates are usually attached to the bottom or side of the battery module, and the heat generated by the battery is conducted away through the circulating flow of the cooling liquid in the liquid cooling pipe; the heat-conducting pads are filled between the battery cells and the battery module shell, further improving the heat conduction efficiency. The cooling pipe is connected with the connecting water pipe 11 to transport the cooling liquid.

[0037] The first heat management machine 1 is provided with a first auxiliary water tank 3, and the first auxiliary water tank 3 is connected with the first heat management machine 1 and the hot water distribution pipe 7 through the connecting water pipe 11. The second heat management machine 2 is provided with a second auxiliary water tank 4, and the second auxiliary water tank 4 is connected with the second heat management machine 2 and the hot water distribution pipe 7 through the connecting water pipe 11. The first auxiliary water tank 3 and the second auxiliary water tank 4 can store water, and can supplement the circulating water during the cold and hot circulation process. The water in the first auxiliary water tank 3 and the second auxiliary water tank 4 is transported to the hot water distribution pipe 7 through the connecting water pipe 11, and at the same time, the cooling liquid in the first auxiliary water tank 3 and the second auxiliary water tank 4 can be sucked into the first heat management machine 1 and the second heat management machine 2 for cooling and added to the water circulation. Before the heat exchange device is started, the cooling liquid is injected into the connecting water pipe 11 through the first auxiliary water tank 3 and the second auxiliary water tank 4.

[0038] The fifth battery power pack 91, the sixth battery power pack 92, the seventh battery power pack 93, the eighth battery power pack 94, and the first battery power pack 51, the second battery power pack 52, the third battery power pack 53, and the fourth battery power pack 54 are connected in an eight-way parallel mode. The heat circulation cooling liquid in the battery pack is divided into eight paths and enters the hot water distribution pipe 7, and after being converged, it is divided into two paths and enters the first heat management machine 1 and the second heat management machine 2 for cooling. The cooling liquid at the outlets of the first heat management machine 1 and the second heat management machine 2 is converged through the cold water distribution pipe 6, and is divided into eight paths through the first drain valve 8 and enters the water inlets of the respective battery packs, thereby achieving the effect of water circulation.

[0039] Since the first heat management machine 1 and the second heat management machine 2 are far apart, the first heat management machine 1 is provided with the first auxiliary water tank 3, and the second heat management machine 2 is provided with the second auxiliary water tank 4, thereby achieving the effect of facilitating water supply for the water system.

[0040] A wide-body dump truck applies the above-mentioned power system for a dump truck.

[0041] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] Based on the above ideal embodiments of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the scope of the present application. The technical scope of the present application is not limited to the contents in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A power system for a dump truck, characterized in that, The device includes a first heat management unit (1), a second heat management unit (2), and a connecting water pipe (11). A first battery power unit (5) is installed below the first heat management unit (1), and a second battery power unit (9) is installed below the second heat management unit (2). A hot water distribution pipe (7) is installed on one side of the first battery power unit (5) and the second battery power unit (9), and a cold water distribution pipe (6) is installed on the other side of the first battery power unit (5) and the second battery power unit (9). A first drain valve (8) and a second drain valve (10) are symmetrically arranged on the hot water distribution pipe (7). The first heat management unit (1) and the second heat management unit (2) are connected to the cold water distribution pipe (6) through the connecting water pipe (11). The first heat management unit (1) and the second heat management unit (2) are also connected to the hot water distribution pipe (7) through the connecting water pipe (11). The first battery power unit (5) and the second battery power unit (9) are respectively connected to the cold water distribution pipe (6) and the hot water distribution pipe (7) through the connecting water pipe (11).

2. The power system for a dump truck according to claim 1, characterized in that, The first battery power pack (5) includes a first battery power pack (51), a second battery power pack (52), a third battery power pack (53), and a fourth battery power pack (54).

3. The power system for a dump truck according to claim 2, characterized in that, The first battery power pack (51), the second battery power pack (52), the third battery power pack (53), and the fourth battery power pack (54) are arranged sequentially below the first thermal management unit (1). The first battery power pack (51), the second battery power pack (52), the third battery power pack (53), and the fourth battery power pack (54) are all connected to the cold water distribution pipe (6) through the connecting water pipe (11).

4. The power system for a dump truck according to claim 3, characterized in that, The first battery power pack (51), the second battery power pack (52), the third battery power pack (53), and the fourth battery power pack (54) are also connected to the hot water distribution pipe (7) via a water pipe (11).

5. A power system for a dump truck according to claim 1, characterized in that, The second battery power pack (9) includes a fifth battery power pack (91), a sixth battery power pack (92), a seventh battery power pack (93), and an eighth battery power pack (94).

6. A power system for a dump truck according to claim 5, characterized in that, The fifth battery power pack (91), the sixth battery power pack (92), the seventh battery power pack (93), and the eighth battery power pack (94) are arranged sequentially below the second thermal management unit (2). The fifth battery power pack (91), the sixth battery power pack (92), the seventh battery power pack (93), and the eighth battery power pack (94) are all connected to the cold water distribution pipe (6) through the connecting water pipe (11).

7. A power system for a dump truck according to claim 6, characterized in that, The fifth battery power pack (91), the sixth battery power pack (92), the seventh battery power pack (93), and the eighth battery power pack (94) are also connected to the hot water distribution pipe (7) via a water pipe (11).

8. A power system for a dump truck according to claim 1, characterized in that, A first auxiliary water tank (3) is provided on one side of the first heat management unit (1), and the first auxiliary water tank (3) is connected to the first heat management unit (1) and the hot water distribution pipe (7) respectively through a connecting water pipe (11).

9. A power system for a dump truck according to claim 1, characterized in that, A second auxiliary water tank (4) is provided on one side of the second heat management unit (2). The second auxiliary water tank (4) is connected to the second heat management unit (2) and the hot water distribution pipe (7) respectively through the connecting water pipe (11). The cold water distribution pipe (6) and the hot water distribution pipe (7) are both U-shaped.

10. A wide-body dump truck, employing a power system for a dump truck as described in any one of claims 1-9.

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