Heavy electric truck

Abstract

The utility model relates to a heavy electric truck which comprises a traction trailer, a plurality of load-carrying trailers and a battery trailer. A first battery pack and a first driving motor group are arranged on the traction trailer, the first battery pack is electrically connected with the first driving motor group, the first battery pack is used for supplying power to the first driving motor group, and the first driving motor group is used for driving the traction trailer to run; a second battery pack and a second driving motor group are arranged on the battery trailer, the second battery pack is electrically connected with the second driving motor group, the second battery pack is used for supplying power to the second driving motor group, and the second driving motor group is used for driving the battery trailer to run; the traction trailer, the battery trailer and the multi-section load trailer are sequentially connected end to end and are detachably connected with one another through connecting pieces. The long-distance transport vehicle has the advantages that the battery trailer is additionally arranged, and the traction trailer and the battery trailer are each provided with the battery pack and the driving motor, so that long-distance transport operation of heavy or extra-heavy loads is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of trucks, in particular to a heavy-duty electric truck. Background Art

[0002] Existing electric trucks used to transport heavy goods are limited by the battery capacity of the tractor, and the driving distance after a single charge is less than 500 kilometers, which is difficult to meet the needs of long-distance transportation. At the same time, the weight of the load-carrying trailer towed by the tractor is more than ten tons, and the load is tens of tons. Therefore, the weight of each load-carrying trailer is large, and the traction force of the trailer is limited. It is difficult to tow a large number of load-carrying trailers, resulting in a limited weight of the transported goods. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a heavy-duty electric truck, which solves the technical problems that the existing electric trucks are difficult to adapt to the needs of long-distance transportation and the weight of the transported goods is limited.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] In a first aspect, an embodiment of the utility model provides a heavy-duty electric truck, comprising a tractor trailer and a load trailer, and further comprising a battery trailer, wherein the load trailer is provided with a plurality of sections;

[0008] The tractor trailer is provided with a first battery group and a first drive motor group, the first battery group and the first drive motor group are electrically connected, the first battery group is used to supply power to the first drive motor group, and the first drive motor group is used to drive the tractor trailer to travel;

[0009] The battery trailer is provided with a second battery group and a second drive motor group, the second battery group and the second drive motor group are electrically connected, the second battery group is used to supply power to the second drive motor group, and the second drive motor group is used to drive the battery trailer to travel;

[0010] The traction trailer, the battery trailer and the multiple load-carrying trailers are connected end to end in sequence and are detachably connected to each other via connecting pieces.

[0011] According to the utility model, it also includes an electrical control system;

[0012] The power control system is arranged on the traction trailer or the battery trailer, the power control system is electrically connected to the first battery group and the second battery group, and the power control system is electrically connected to the first drive motor group and the second drive motor group.

[0013] According to the utility model, a solar panel is provided on the outer peripheral wall of one or more sections of the tractor trailer, the battery trailer and the load trailer;

[0014] The solar panel is electrically connected to the power control system.

[0015] According to the utility model, the outer side of the solar panel is covered with a transparent protective film.

[0016] According to the utility model, the transparent protective film is pasted on the outer side of the solar panel;

[0017] The thickness of the transparent protective film is 0.5-2 cm.

[0018] According to the utility model, the number of the load-carrying trailers is 1-10;

[0019] The solar panels are covered on the outer peripheral walls of the cargo compartment of each of the load-bearing trailers, and energy storage battery packs are also provided on each of the load-bearing trailers. Each of the energy storage battery packs is electrically connected to the power control system and the corresponding solar panels.

[0020] According to the utility model, the energy storage battery pack is arranged on the chassis of the load-carrying trailer.

[0021] According to the utility model, the tractor trailer includes a front and a first battery compartment arranged on the front, wherein the power control system and the first battery pack are arranged in the first battery compartment; the solar panel is covered on the outer peripheral wall of the first battery compartment;

[0022] The battery trailer comprises a second battery compartment, in which the second battery pack is arranged; and the solar panel is covered on the outer peripheral wall of the second battery compartment.

[0023] According to the utility model, the connecting member is a winch.

[0024] According to the present invention, the battery capacity of the second battery pack is 2-10 times the battery capacity of the first battery pack.

[0025] (III) Beneficial effects

[0026] The beneficial effects of the utility model are:

[0027] The utility model provides a heavy-duty electric truck, which increases the overall battery capacity of the heavy-duty electric truck by adding a battery trailer, and both the traction trailer and the battery trailer are provided with a battery pack and a driving motor. The two power tractors consisting of the traction trailer and the battery trailer jointly tow the load trailer, so that the battery packs on the traction trailer and the battery trailer can travel long distances after a single charge, and the traction force is improved, which can increase the number of load trailers towed and the weight of the load trailers. Therefore, the heavy-duty electric truck can realize long-distance transportation operations of heavy or super-heavy loads, and is particularly suitable for transportation work in mining enterprises.

[0028] At the same time, the tractor trailer, battery trailer and multi-section load-carrying trailer of the present application are detachably connected to each other through connectors, and the number of sections of the load-carrying trailer can be conveniently adjusted according to the required transportation distance and the volume and weight of the goods carried, so as to tow heavy or super-heavy load-carrying trailers, and it is also convenient to modify the original electric truck to reduce the modification cost and difficulty. In addition, the heavy-duty electric truck of the present application adopts a pure electric system, which saves transportation costs, and has very low pollutant emissions, which is environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional schematic diagram of a heavy-duty electric truck of the utility model;

[0030] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0031] Figure 3 This is a schematic diagram of the exploded view of the first battery compartment.

[0032] [Description of Reference Numerals]

[0033] 1: tractor trailer; 11: front of the vehicle; 12: first battery compartment; 13: first battery pack;

[0034] 2: battery trailer; 21: second battery compartment;

[0035] 3: Load trailer; 31: Cargo compartment; 32: Energy storage battery pack;

[0036] 4: Power control system;

[0037] 5: Solar panels;

[0038] 6: Transparent protective film;

[0039] 7: Winch. DETAILED DESCRIPTION

[0040] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0041] See also Figure 1-3 The utility model provides a heavy-duty electric truck, which includes a traction trailer 1, a load trailer 3 and a battery trailer 2.

[0042] The number of the load trailer 3 is multiple. The traction trailer 1 is provided with a first battery pack 13 and a first drive motor group, the first battery pack 13 and the first drive motor group are electrically connected, the first battery pack 13 is used to supply power to the first drive motor group, and the first drive motor group is used to drive the traction trailer 1 to travel. The battery trailer 2 is provided with a second battery pack and a second drive motor group, the second battery pack and the second drive motor group are electrically connected, the second battery pack is used to supply power to the second drive motor group, and the second drive motor group is used to drive the battery trailer 2 to travel. The traction trailer 1, the battery trailer 2 and the multi-section load trailer 3 are connected end to end in sequence, and are detachably connected to each other through a connector.

[0043] The heavy-duty electric truck is provided with a battery trailer 2, and battery packs and motors are provided on the tractor trailer 1 and the battery trailer 2 to expand the overall battery capacity of the heavy-duty electric truck. The two power tractors consisting of the tractor trailer 1 and the battery trailer 2 jointly tow the load trailer 3, so that the battery packs on the tractor trailer 1 and the battery trailer 2 can travel a long distance after a single charge, and the traction force is improved, and the number of load trailers 3 towed and the weight of the load trailers 3 can be increased. Therefore, the heavy-duty electric truck can realize long-distance transportation of heavy or super-heavy loads, and is particularly suitable for transportation work in mining enterprises.

[0044] At the same time, the tractor trailer 1, battery trailer 2 and multi-section load trailer 3 of the present application are detachably connected to each other through connectors, and the number of sections of the load trailer 3 can be conveniently adjusted according to the required transportation distance and the volume and weight of the goods carried, so as to tow the heavy or super-heavy load trailer 3, and it is also convenient to modify the original electric truck to reduce the modification cost and difficulty. In addition, the heavy-duty electric truck of the present application adopts a pure electric system, which saves transportation costs, and has very little pollutant emissions, which is environmentally friendly.

[0045] Specifically, due to the volume of the first battery compartment 12 of the tractor trailer 1, the volume of the first battery pack 13 carried by it is limited. However, the battery capacity of the second battery pack in the heavy-duty electric truck is 2-10 times the battery capacity of the first battery pack 13, which can greatly increase the overall capacity of the first battery pack 13 and the second battery pack, thereby extending the drivable distance of the heavy-duty electric truck.

[0046] By adding a battery trailer 2, the traction force and the drivable distance are improved, and it is suitable for towing 1-10 load-bearing trailers 3, especially for towing 2-6 load-bearing trailers 3, wherein the dead weight of each load-bearing trailer 3 is about 10t and the load is 30-50t, that is, the total weight of the load-bearing trailers 3 that can be towed by this heavy-duty electric truck is 100-400t, and the drivable distance of this heavy-duty electric truck is at least 1,000 kilometers, which can realize long-distance transportation operations of heavy or ultra-heavy loads.

[0047] It should be noted that this heavy-duty electric truck can also use unmanned driving technology to travel long distances.

[0048] Specifically, both the first battery pack 13 and the second battery pack can be loaded, unloaded, replaced, and charged. During long-distance transportation operations, when the first battery pack 13 is low on power, it can be removed and replaced with a fully charged battery; or, the battery can be charged to continue driving. The battery replacement or charging method can be selected according to time. As a result, the heavy-duty electric truck can further realize long-distance transportation operations of heavy or super-heavy loads.

[0049] Further, the number of axles of the tractor trailer 1, the battery trailer 2 and the load trailer 3 is at least two rows, and the number of axles is proportional to the load, so it can be set according to the total weight of the towed load trailer 3. Optionally, the number of axles of the tractor trailer 1, the battery trailer 2 and the load trailer 3 is two axles, three axles and four axles.

[0050] Specifically, the rear axle of the tractor trailer 1 has at least 2 rows, the front axle of the battery trailer 2 has at least 2 rows, and the rear axle has at least 3 rows to meet the support requirements of heavy or super heavy loads.

[0051] Specifically, the first drive motor group and the second drive motor group are both hub motors, and both include multiple drive motors. The number of drive motors in the first drive motor group and the second drive motor group is consistent with the number of wheel hubs of the traction trailer 1 and the battery trailer 2, respectively.

[0052] Furthermore, the connecting member is a winch 7, so as to facilitate the loading and unloading between the traction trailer 1, the battery trailer 2 and the multi-section load trailer 3. It should be noted that the winch 7 is a common mechanism that can achieve detachable connection and traction of heavy objects.

[0053] Furthermore, the heavy-duty electric truck also includes an electric control system 4 .

[0054] The power control system 4 is disposed on the tractor trailer 1 or the battery trailer 2 , and the power control system 4 is electrically connected to the first battery group 13 , the second battery group, the first drive motor group, and the second drive motor group.

[0055] The power control system 4 can control the charging and discharging of the first battery pack 13 and the second battery pack and the power distribution, and control the start and stop operation of the first drive motor group and the second drive motor group to extend the drivable distance of the heavy-duty electric truck.

[0056] Furthermore, a solar panel 5 is provided on the outer peripheral wall of one or more sections of the tractor trailer 1 , the battery trailer 2 and the load trailer 3 . The solar panel 5 is electrically connected to the power control system 4 .

[0057] By setting the solar panel 5, the heavy-duty electric truck can receive and convert the electric energy from solar energy into electricity under the control of the power control system 4 in both the working and non-working state, so as to charge the first battery pack 13 and the second battery pack, thereby further extending the drivable distance of the heavy-duty electric truck.

[0058] Specifically, the solar panel 5 is detachably connected to the outer peripheral wall of one or more sections of the tractor trailer 1, the battery trailer 2 and the load trailer 3 by bolts to facilitate loading and unloading.

[0059] Preferably, solar panels 5 are provided on the outer peripheral walls of the tractor trailer 1, the battery trailer 2 and the load trailer 3, so as to increase the number and area of ​​the solar panels 5 and correspondingly increase the drivable distance of the electric truck.

[0060] Preferably, the outer peripheral wall of the cargo compartment 31 of each load trailer 3 is covered with solar panels 5 to increase the amount of electricity charged by the solar panels 5 to the first battery group 13 and the second battery group, further extending the drivable distance of the heavy-duty electric truck.

[0061] Each load trailer 3 is also provided with an energy storage battery group 32, and each energy storage battery group 32 is electrically connected to the power control system 4 and the corresponding solar panel 5. The electric energy converted from the solar energy received by the solar panel 5 can be stored in the corresponding energy storage battery group 32, and then the electric energy is regulated by the power control system 4 and the first battery group 13 and the second battery group are charged, so that when the number of load trailers 3 is increased or decreased, the electric energy converted from the solar panel 5 on the load trailer 3 that is not involved in driving can still be stored in the corresponding energy storage battery group 32, so as to charge the first battery group 13 and the second battery group in subsequent use.

[0062] Specifically, the energy storage battery pack 32 is disposed on the chassis of the load-carrying trailer 3 and does not occupy the internal cargo space of the cargo compartment 31 .

[0063] Specifically, the tractor trailer 1 includes a front 11 and a first battery compartment 12 disposed on the front 11, and the first battery compartment 12 is provided with an electric control system 4 and a first battery pack 13. The outer peripheral wall of the first battery compartment 12 is covered with a solar panel 5. The battery trailer 2 includes a second battery compartment 21, and a second battery pack is disposed in the second battery compartment 21. The outer peripheral wall of the second battery compartment 21 is covered with a solar panel 5.

[0064] Through the above arrangement, the number and area of ​​the solar panels 5 can be expanded to increase the chargeable amount of the solar panels 5 and further extend the drivable distance of the heavy-duty electric truck.

[0065] Preferably, the outer side of the solar panel 5 is covered with a transparent protective film 6 to prevent the solar panel 5 from being damaged by hard objects and to prevent the solar panel 5 from receiving sunlight. The outer side of the solar panel 5 refers to the side that can receive sunlight.

[0066] Specifically, the transparent protective film 6 is a polyurethane protective plate, which is made of a relatively soft material to prevent damage caused by impacts from hard objects.

[0067] Specifically, the transparent protective film 6 is attached to the outer side of the solar panel 5. Optionally, the transparent protective film 6 is attached to the solar panel 5 by acrylic glue, polyurethane glue or polyester resin glue.

[0068] Preferably, the thickness of the transparent protective film 6 is 0.5-2 cm, which can reduce the weight while ensuring the protective performance of the solar panel 5.

[0069] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any section or multiple sections of the embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0070] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A heavy-duty electric truck, comprising a tractor trailer (1) and a load trailer (3), characterized in that: It also includes a battery trailer (2), wherein the load trailer (3) is provided in a plurality of sections; The tractor trailer (1) is provided with a first battery group (13) and a first drive motor group, the first battery group (13) and the first drive motor group are electrically connected, the first battery group (13) is used to supply power to the first drive motor group, and the first drive motor group is used to drive the tractor trailer (1) to travel; The battery trailer (2) is provided with a second battery group and a second drive motor group, the second battery group and the second drive motor group are electrically connected, the second battery group is used to supply power to the second drive motor group, and the second drive motor group is used to drive the battery trailer (2) to travel; The traction trailer (1), the battery trailer (2) and the multiple sections of the load-carrying trailer (3) are connected end to end in sequence and are detachably connected to each other via connecting pieces.

2. The heavy-duty electric truck according to claim 1, characterized in that: Also includes an electrical control system (4); The power control system (4) is arranged on the tractor trailer (1) or the battery trailer (2), the power control system (4) is electrically connected to the first battery group (13) and the second battery group, and the power control system (4) is electrically connected to the first drive motor group and the second drive motor group.

3. The heavy-duty electric truck according to claim 2, characterized in that: A solar panel (5) is arranged on the outer peripheral wall of one or more sections of the tractor trailer (1), the battery trailer (2) and the load trailer (3); The solar panel (5) is electrically connected to the power control system (4).

4. The heavy-duty electric truck according to claim 3, characterized in that: The outer side of the solar panel (5) is covered with a transparent protective film (6).

5. The heavy-duty electric truck according to claim 4, characterized in that: The transparent protective film (6) is adhered to the outer side of the solar panel (5); The thickness of the transparent protective film (6) is 0.5-2 cm.

6. The heavy-duty electric truck according to claim 3, characterized in that: The number of the load trailers (3) is 1 to 10; The solar panel (5) is covered on the outer wall of the cargo compartment (31) of each load-carrying trailer (3), and an energy storage battery group (32) is also provided on each load-carrying trailer (3). Each energy storage battery group (32) is electrically connected to the power control system (4) and the corresponding solar panel (5).

7. The heavy-duty electric truck according to claim 6, characterized in that: The energy storage battery group (32) is arranged on the chassis of the load-carrying trailer (3).

8. The heavy-duty electric truck according to claim 3, characterized in that: The tractor trailer (1) comprises a front vehicle (11) and a first battery compartment (12) arranged on the front vehicle (11), wherein the power control system (4) and the first battery group (13) are arranged in the first battery compartment (12); and the solar panel (5) is covered on the outer peripheral wall of the first battery compartment (12); The battery trailer (2) comprises a second battery compartment (21), wherein the second battery group is arranged in the second battery compartment (21); and the solar panel (5) is covered on the outer peripheral wall of the second battery compartment (21).

9. The heavy-duty electric truck according to claim 1, characterized in that: The connecting member is a winch (7).

10. The heavy-duty electric truck according to claim 1, characterized in that: The battery capacity of the second battery group is 2-10 times the battery capacity of the first battery group (13).

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