Commercial vehicle front accessory module assembly and new energy commercial vehicle
By designing a front accessory module assembly for commercial vehicles, which centrally arranges components such as high-voltage power distribution boxes, low-voltage batteries, and DC-DC converters, the problem of low space utilization in the chassis of new energy commercial vehicles is solved, achieving more efficient space utilization and simplified assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FAW JIEFANG AUTOMOTIVE CO
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-07
Smart Images
Figure CN224465681U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle engineering technology, and in particular to a front accessory module assembly for commercial vehicles and a new energy commercial vehicle. Background Technology
[0002] In recent years, driven by factors such as the accelerated implementation of "dual-carbon" targets and the industry's green transformation and upgrading, the development of new energy commercial vehicles has been rapid. Currently, new energy commercial vehicles are produced by converting gasoline vehicles to electric power, meeting the demand for rapid market deployment without altering the original vehicle architecture. The high-voltage electrical components, high-voltage distribution boxes, DC / DC converters, thermal management systems, and various low-voltage accessories required for the vehicle are not compactly arranged in the chassis, resulting in low space utilization and complex assembly.
[0003] Therefore, there is an urgent need for a front accessory module assembly for commercial vehicles and a new energy commercial vehicle to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this utility model is to propose a front accessory module assembly for commercial vehicles and a new energy commercial vehicle, which can improve space utilization and simplify assembly.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] Commercial vehicle front accessory module assembly, including:
[0007] High-voltage distribution box, the above-mentioned high-voltage distribution box is used for vehicle power distribution;
[0008] A low-voltage battery is installed on one side of the high-voltage distribution box in the first horizontal direction.
[0009] A DC-DC converter is installed on the side of the low-voltage battery facing away from the high-voltage distribution box in the first horizontal direction and is electrically connected to the high-voltage distribution box.
[0010] A low-voltage fuse box is installed above the DC-DC converter and is electrically connected to the low-voltage battery.
[0011] Projected in the first horizontal direction, the high-voltage distribution box, the low-voltage battery, the DC-DC converter, and the low-voltage fuse box at least partially overlap.
[0012] As a preferred technical solution for the aforementioned front accessory module assembly for commercial vehicles, the overlapping area of the high-voltage distribution box and the low-voltage battery in the projection of the first horizontal direction is denoted as region A, and the DC-DC converter and the low-voltage fuse box constitute region B. Region A and region B at least partially overlap.
[0013] As a preferred technical solution for the aforementioned front accessory module assembly for commercial vehicles, it further includes a low-voltage controller group, which is installed on the side of the DC-DC converter facing away from the low-voltage battery in the first horizontal direction. The projection of the low-voltage controller group in the first horizontal direction at least partially overlaps with the low-voltage battery.
[0014] As a preferred technical solution for the aforementioned front accessory module assembly for commercial vehicles, it also includes an electric air compressor for supplying air to the vehicle. The electric air compressor is installed on one side of the high-voltage distribution box in the second horizontal direction. The projection of the electric air compressor in the second horizontal direction at least partially overlaps with the high-voltage distribution box.
[0015] The first horizontal direction mentioned above is perpendicular to the second horizontal direction mentioned above.
[0016] As a preferred technical solution for the aforementioned front accessory module assembly for commercial vehicles, it also includes an auxiliary power unit connected to the aforementioned electric air compressor via an air pipe.
[0017] As a preferred technical solution for the aforementioned front accessory module assembly for commercial vehicles, it further includes a thermal management system component, which is installed below the aforementioned high-voltage power distribution box, the aforementioned low-voltage battery, the aforementioned DC-DC converter, and the aforementioned low-voltage fuse box. In the vertical direction, the aforementioned high-voltage power distribution box, the aforementioned low-voltage battery, the aforementioned DC-DC converter, and the aforementioned low-voltage fuse box all at least partially overlap with the aforementioned thermal management system component.
[0018] As a preferred technical solution for the aforementioned front accessory module assembly for commercial vehicles, the aforementioned thermal management system component is provided with connecting ears on both sides in the aforementioned second horizontal direction, and the connecting ears are used to connect with the vehicle body via threaded fasteners.
[0019] A new energy commercial vehicle is also provided, including the aforementioned front accessory module assembly for commercial vehicles.
[0020] As a preferred technical solution for the aforementioned new energy commercial vehicle, it also includes a front wheel mudguard, with the aforementioned auxiliary power device installed on the rear side of the aforementioned front wheel mudguard.
[0021] As a preferred technical solution for the aforementioned new energy commercial vehicle, it also includes a cooling fan, which is installed on the side of the low-voltage battery facing away from the high-voltage distribution box in the first horizontal direction.
[0022] The beneficial effects of this utility model are:
[0023] This utility model provides a front accessory module assembly for commercial vehicles, including: a high-voltage power distribution box, a low-voltage battery, a DC-DC converter, and a low-voltage fuse box. The high-voltage power distribution box is used for power distribution in the vehicle; the low-voltage battery is installed on one side of the high-voltage power distribution box in a first horizontal direction; the DC-DC converter is installed on the side of the low-voltage battery facing away from the high-voltage power distribution box in the first horizontal direction and is electrically connected to the high-voltage power distribution box; the low-voltage fuse box is installed above the DC-DC converter and is electrically connected to the low-voltage battery; when projected in the first horizontal direction, the high-voltage power distribution box, low-voltage battery, DC-DC converter, and low-voltage fuse box at least partially overlap.
[0024] For example, a high-voltage distribution box is mainly used for the distribution, protection, and management of high-voltage electrical energy. It can distribute the high-voltage DC power from the power battery to various electrical devices. A low-voltage battery is an energy storage device in a vehicle that provides 12V / 24V DC power, primarily supplying power to the low-voltage electrical system and working in conjunction with the high-voltage system. A DC-DC converter is used to convert DC voltage to another DC voltage, ensuring stable output voltage and reducing ripple noise. A low-voltage fuse box is a component in a vehicle used to protect low-voltage circuits, integrating fuses and relays. When a circuit is short-circuited or overloaded, the fuse blows, cutting off the current and preventing wiring harnesses or equipment from burning out.
[0025] During installation, due to the large number of components inside the high-voltage distribution box, many of which are easily damaged, it is installed at the rear of the first horizontal layer of the commercial vehicle front accessory module assembly for ease of maintenance. Because the low-voltage battery's performance is highly sensitive to temperature, it is installed at the front of the first horizontal layer of the commercial vehicle front accessory module assembly to facilitate airflow cooling. The DC-DC converter is installed close to the high-voltage distribution box to save wiring harness length. The low-voltage fuse box is adjacent to the low-voltage battery to further reduce wiring harness length. This arrangement reduces the overall size of the commercial vehicle front accessory module assembly, allowing it to be positioned near the engine and saving more space in the chassis. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0027] Figure 1 This is a structural schematic diagram of the front accessory module assembly for commercial vehicles provided in this embodiment of the utility model.
[0028] In the picture:
[0029] X, First horizontal direction; Y, Second horizontal direction; Z, Vertical direction; 1. High-voltage distribution box; 2. Low-voltage battery; 3. DC-DC converter; 4. Low-voltage fuse box; 5. Low-voltage controller group; 51. First controller; 52. Second controller; 53. Third controller; 54. Fourth controller; 55. Fifth controller; 6. Electric air compressor; 7. Auxiliary power unit; 8. Thermal management system components; 81. Connecting lug. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0034] like Figure 1 As shown, this utility model provides a front accessory module assembly for commercial vehicles, including: a high-voltage power distribution box 1, a low-voltage battery 2, a DC-DC converter 3, and a low-voltage fuse box 4. The high-voltage power distribution box 1 is used for vehicle power distribution; the low-voltage battery 2 is installed on one side of the high-voltage power distribution box 1 in the first horizontal direction X; the DC-DC converter 3 is installed on the side of the low-voltage battery 2 facing away from the high-voltage power distribution box 1 in the first horizontal direction X and is electrically connected to the high-voltage power distribution box 1; the low-voltage fuse box 4 is installed above the DC-DC converter 3 and is electrically connected to the low-voltage battery 2; when projected in the first horizontal direction X, the high-voltage power distribution box 1, the low-voltage battery 2, the DC-DC converter 3, and the low-voltage fuse box 4 at least partially overlap.
[0035] For example, the high-voltage distribution box 1 is mainly used for the distribution, protection, and management of high-voltage electrical energy, and can distribute the high-voltage DC power from the power battery to various electrical devices. The low-voltage battery 2 is an energy storage device in the vehicle that provides 12V / 24V DC power, mainly supplying power to the low-voltage electrical system and working in conjunction with the high-voltage system. The DC-DC converter 3 is used to convert DC voltage to another DC voltage, ensuring stable output voltage and reducing ripple noise. The low-voltage fuse box 4 is a component in the vehicle used to protect low-voltage circuits, integrating fuses and relays. When the circuit is short-circuited or overloaded, the fuse blows, cutting off the current and preventing the wiring harness or equipment from burning out.
[0036] During installation, due to the large number of components inside the high-voltage distribution box 1, all of which are easily damaged, it is installed on the rear side of the first horizontal layer of the commercial vehicle front accessory module assembly for easy maintenance. Since the low-voltage battery 2 is highly sensitive to temperature, it is installed on the front side of the first horizontal layer of the commercial vehicle front accessory module assembly to facilitate airflow cooling. The DC-DC converter 3 is installed close to the high-voltage distribution box 1 to save wiring harness length. The low-voltage fuse box 4 is adjacent to the low-voltage battery 2, further saving wiring harness length. This arrangement reduces the overall size of the commercial vehicle front accessory module assembly, allowing it to be positioned near the engine and saving more space in the chassis.
[0037] Optionally, the overlapping area of the high-voltage distribution box 1 and the low-voltage battery 2, projected in the first horizontal direction X, is denoted as region A, and the DC-DC converter 3 and the low-voltage fuse box 4 form region B, with region A and region B at least partially overlapping.
[0038] This arrangement allows the high-voltage distribution box 1, low-voltage battery 2, DC-DC converter 3, and low-voltage fuse box 4 to be relatively concentrated, which can reduce the space occupied by the front accessory module assembly for commercial vehicles.
[0039] Optionally, the front accessory module assembly for commercial vehicles also includes a low-voltage controller group 5, which is mounted on the side of the DC-DC converter 3 facing away from the low-voltage battery 2 in the first horizontal direction X. The projection of the low-voltage controller group 5 in the first horizontal direction X is at least partially overlapping with the low-voltage battery 2.
[0040] For example, the low-voltage controller group 5 and the high-voltage distribution box 1 are located on the same horizontal layer. The low-voltage controller group 5 includes a first controller 51, a second controller 52, a third controller 53, a fourth controller 54, and a fifth controller 55. The first controller 51 and the second controller 52 are stacked and fixed in the vertical direction Z, and the third controller 53, the fourth controller 54, and the fifth controller 55 are stacked and fixed in the vertical direction Z. The third controller 53, the fourth controller 54, and the fifth controller 55 are located on one side of the first controller 51 and the second controller 52 in the second horizontal direction Y.
[0041] Optionally, the front accessory module assembly for commercial vehicles also includes an electric air compressor 6 for supplying air to the vehicle. The electric air compressor 6 is mounted on one side of the high-voltage distribution box 1 in the second horizontal direction Y. The projection of the electric air compressor 6 in the second horizontal direction Y at least partially overlaps with the high-voltage distribution box 1. The first horizontal direction X is perpendicular to the second horizontal direction Y.
[0042] For example, the electric air compressor 6 is used to supply air to the vehicle. Because of its good reliability and lack of frequent maintenance, it is installed behind the second horizontal layer, which is located below the first horizontal layer.
[0043] Optionally, the front accessory module assembly for commercial vehicles also includes an auxiliary power unit 7, which is connected to an electric air compressor 6 via an air pipe.
[0044] Optionally, the front accessory module assembly for commercial vehicles also includes a thermal management system component 8, which is installed below the high-voltage distribution box 1, the low-voltage battery 2, the DC-DC converter 3, and the low-voltage fuse box 4. In the vertical direction Z projection, the high-voltage distribution box 1, the low-voltage battery 2, the DC-DC converter 3, and the low-voltage fuse box 4 all at least partially overlap with the thermal management system component 8.
[0045] For example, the thermal management system component 8 includes a frame, a thermal management unit, and a valve body for supplying water, cooling, and heating the vehicle. Because it needs to connect to the front heat dissipation module, the thermal management system component 8 is mounted below the high-voltage distribution box 1, the low-voltage battery 2, the DC-DC converter 3, and the low-voltage fuse box 4, and is located on the front side of the second horizontal layer.
[0046] Optionally, the thermal management system component 8 is provided with connecting ears 81 on both sides of the second horizontal direction Y, the connecting ears 81 being used to connect to the vehicle housing via threaded fasteners.
[0047] This configuration facilitates the installation of the thermal management system component 8 onto the vehicle's housing.
[0048] For example, the high-voltage distribution box 1 and the thermal management system component 8 are connected by threaded fasteners to facilitate the installation of both.
[0049] For example, the low-voltage battery 2 is connected to the thermal management system component 8 by threaded fasteners, which facilitates the installation of both.
[0050] For example, the low-voltage fuse box 4 is connected to the thermal management system component 8 by threaded fasteners, which facilitates the installation of both.
[0051] Optionally, the front accessory module assembly for commercial vehicles can be integrally packaged, which not only ensures aesthetics but also greatly simplifies the assembly process and shortens the working time.
[0052] For example, the high-voltage distribution box 1 is connected to the DC-DC converter 3, the high-voltage water pump and air conditioning compressor in the thermal management system component 8, and other high-voltage components via high-voltage wiring harnesses. The chassis low-voltage wiring harness assembly branches are connected to the low-voltage battery 2, low-voltage fuse box 4, low-voltage controller group 5, auxiliary power unit 7, and solenoid valves in the thermal management system component 8, and other low-voltage components. The DC-DC converter 3 and the low-voltage battery 2 are connected in parallel via low-voltage wiring harnesses. When the vehicle's high-voltage system is working, the DC-DC converter 3 supplies power to the vehicle's low-voltage system. When the vehicle's high-voltage system is not working, the low-voltage battery 2 supplies power to the vehicle's low-voltage system.
[0053] A new energy commercial vehicle is also provided, including the aforementioned front accessory module assembly for commercial vehicles.
[0054] Optionally, the new energy commercial vehicle also includes front wheel mudguards, with the auxiliary power unit 7 installed on the rear side of the front wheel mudguards.
[0055] Because the air pipe between the auxiliary power unit 7 and the electric air compressor 6 should not be too short, as an excessively short air pipe would hinder the condensation of moisture in the air, leading to water accumulation inside the electric air compressor 6, the auxiliary power unit 7 is installed at a location far from the electric air compressor 6. Furthermore, it is assembled separately from the electric air compressor 6 during production.
[0056] Optionally, the new energy commercial vehicle also includes a cooling fan, which is installed on the side of the low-voltage battery 2 facing away from the high-voltage distribution box 1 in the first horizontal direction X.
[0057] For example, a cooling fan can generate airflow, which can dissipate heat by passing over a low-voltage battery 2. The low-voltage battery 2 is installed behind the cooling fan.
[0058] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.
Claims
1. A front accessory module assembly for commercial vehicles, characterized in that, include: A high-voltage distribution box (1) is used for power distribution in the vehicle; A low-voltage battery (2) is installed on one side of the high-voltage distribution box (1) in the first horizontal direction (X); A DC-DC converter (3) is installed on the side of the low-voltage battery (2) facing away from the high-voltage distribution box (1) in the first horizontal direction (X) and is electrically connected to the high-voltage distribution box (1); A low-voltage fuse box (4) is installed above the DC-DC converter (3) and is electrically connected to the low-voltage battery (2). Projected in the first horizontal direction (X), the high-voltage distribution box (1), the low-voltage battery (2), the DC-DC converter (3) and the low-voltage fuse box (4) at least partially overlap.
2. The front accessory module assembly for commercial vehicles according to claim 1, characterized in that, Projected in the first horizontal direction (X), the overlapping area of the high-voltage distribution box (1) and the low-voltage battery (2) is denoted as region A, and the DC-DC converter (3) and the low-voltage fuse box (4) form region B. Region A and region B at least partially overlap.
3. The front accessory module assembly for commercial vehicles according to claim 1, characterized in that, It also includes a low-voltage controller group (5), which is mounted on the side of the DC-DC converter (3) facing away from the low-voltage battery (2) in the first horizontal direction (X). The low-voltage controller group (5) and the low-voltage battery (2) are at least partially overlapped in the projection of the DC-DC converter (3) in the first horizontal direction (X).
4. The front accessory module assembly for commercial vehicles according to claim 3, characterized in that, It also includes an electric air compressor (6) for supplying air to the vehicle. The electric air compressor (6) is installed on one side of the high-voltage distribution box (1) in the second horizontal direction (Y). The projection of the electric air compressor (6) in the second horizontal direction (Y) at least partially overlaps with the high-voltage distribution box (1). The first horizontal direction (X) is perpendicular to the second horizontal direction (Y).
5. The front accessory module assembly for commercial vehicles according to claim 4, characterized in that, It also includes an auxiliary power unit (7), which is connected to the electric air compressor (6) via an air pipe.
6. The front accessory module assembly for commercial vehicles according to claim 5, characterized in that, It also includes a thermal management system component (8), which is installed below the high-voltage distribution box (1), the low-voltage battery (2), the DC-DC converter (3) and the low-voltage fuse box (4). In the vertical direction (Z), the projection of the high-voltage distribution box (1), the low-voltage battery (2), the DC-DC converter (3) and the low-voltage fuse box (4) all at least partially overlap with the thermal management system component (8).
7. The front accessory module assembly for commercial vehicles according to claim 6, characterized in that, The thermal management system component (8) is provided with connecting ears (81) on both sides of the second horizontal direction (Y), and the connecting ears (81) are used to connect to the vehicle body by threaded fasteners.
8. A new energy commercial vehicle, characterized in that, Includes the front accessory module assembly for commercial vehicles as described in claim 7.
9. The new energy commercial vehicle according to claim 8, characterized in that, It also includes a front wheel mudguard, and the auxiliary power unit (7) is installed on the rear side of the front wheel mudguard.
10. The new energy commercial vehicle according to claim 8, characterized in that, It also includes a cooling fan, which is installed on the side of the low-voltage battery (2) facing away from the high-voltage distribution box (1) in the first horizontal direction (X).