Underbody electric part protection device
By designing a protective device for electrical components under the vehicle, using a cover plate to seal the open ends and stainless steel material, the problem of damage to electrical components and wiring harnesses in sanitation vehicles under complex road conditions was solved, achieving protection and convenient disassembly and assembly.
Patent Information
- Application Number
- CN202422809672.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-15
AI Technical Summary
In complex road conditions and severe weather, the electrical components and wiring harnesses under the sanitation vehicle are easily scratched by sand and gravel and corroded by melting salt and snow, affecting their service life.
Design a vehicle underbody electrical component protection device, including a box and a cover. The cover is detachable to seal the open end, preventing sand, gravel, and melted salt water from entering. The box is made of stainless steel, and wiring holes run through the side plate to increase structural strength and impact resistance.
It effectively protects electrical components and wiring harnesses from scratches by sand and gravel and corrosion by melting salt and snow, extending their service life and facilitating the disassembly and assembly of electrical components and wiring harnesses.
Smart Images

Figure CN223540775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle auxiliary accessories technology, specifically to a vehicle underbody electrical component protection device. Background Technology
[0002] To adapt to special working environments and improve work efficiency, sanitation vehicles are equipped with corresponding electrical components or wiring harnesses on their chassis. Sanitation vehicles typically operate in complex road conditions and harsh weather, especially in winter when roads are icy and municipal industrial salt is applied, creating a mixture of melting salt water and ground dust. This causes irreversible corrosion to the electrical components and wiring harnesses mounted on the chassis, severely impacting their lifespan. Utility Model Content
[0003] In order to solve the technical problems existing in the background art, this utility model proposes a vehicle under-body electrical component protection device.
[0004] This utility model proposes a vehicle undercarriage electrical component protection device, comprising: a housing and a cover plate, wherein:
[0005] The box body is provided with wiring holes. The box body includes a bottom plate, a first side plate and a second side plate arranged opposite to each other on both sides of the bottom plate, and a back plate located at one end of the first side plate, the second side plate and the bottom plate for mounting on the vehicle chassis. The sides of the first side plate and the second side plate away from the bottom plate and the sides of both away from the back plate are open ends.
[0006] The cover plate is detachably installed on the open end of the box to form a seal on the open end, and the port edge of the open end is located inside the cover surface of the cover plate.
[0007] Preferably, the cover plate includes a first panel, a second panel, and a third panel connected in sequence. The first panel and the second panel, as well as the third panel and the second panel, form obtuse angles. In the installed state, the first panel is opposite to the bottom plate, and the third panel is opposite to the back plate.
[0008] Preferably, the third panel has an inwardly turned-up edge on the side away from the second panel, the inwardly turned-up edge being fitted to the outer edge of the base plate and fixed to the base plate by fasteners.
[0009] Preferably, the side of the back panel away from the bottom plate extends to the outside of the box to form an extended surface; the side of the first panel away from the second panel is provided with an outward flange, which is attached to the extended surface and fixed to the extended surface by fasteners.
[0010] Preferably, the first side plate and the second side plate are provided with stiffening plates at the open ends; the cover plate is attached to the stiffening plates and fixed to the stiffening plates by fasteners.
[0011] Preferably, the wiring hole is located at the junction of the bottom plate and the back plate, and extends through the first side plate and the second side plate.
[0012] Preferably, a switch mounting port is provided on the first side plate or the second side plate.
[0013] Preferably, the base plate has a first mounting hole and a first nut coaxially mounted at the first mounting hole.
[0014] Preferably, the back plate is provided with a second mounting hole and a second nut coaxially mounted in the second mounting hole at the position of the back plate in the internal space of the box.
[0015] Preferably, the back plate, bottom plate, first side plate, second side plate, and cover plate are all stamped with reverse ribs.
[0016] In this invention, the sides of the first and second side plates of the housing furthest from the bottom plate, as well as the sides furthest from the back plate, are designed as open ends. These open ends are then covered by a cover plate, with the port edge of the open end located inside the cover plate's surface. When the back plate is mounted on the vehicle chassis, the cover plate is positioned on the side facing the vehicle's forward direction. Because the cover plate is a single-piece structure and covers the port edge, it effectively prevents sand, gravel, and melted snow from entering the housing. This protects the electrical components and wiring harnesses of the sanitation vehicle from scratches by sand and gravel and corrosion by melted snow, extending their lifespan. Furthermore, this structural design facilitates opening the openings, thereby facilitating the installation and removal of electrical components and wiring harnesses within the housing. Attached Figure Description
[0017] Figure 1 This is a structural diagram of the cover plate and the box body in the assembled state of the vehicle under-body electrical component protection device proposed in this utility model;
[0018] Figure 2 This is a structural schematic diagram of the cover plate separated from the box body in the vehicle undercarriage electrical component protection device proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the bottom plate structure of the box body in the vehicle under-body electrical component protection device proposed in this utility model;
[0020] Figure 4 This is a schematic diagram of the back plate structure of the box in the vehicle undercarriage electrical component protection device proposed in this utility model. Detailed Implementation
[0021] Reference Figure 1-2 The present invention proposes a vehicle undercarriage electrical component protection device, comprising: a housing and a cover plate 1, wherein:
[0022] The box body has wiring holes 6. The box body includes a base plate 2, a first side plate 3 and a second side plate 4 disposed opposite each other on both sides of the base plate 2, and a back plate 5 located at one end of the first side plate 3, the second side plate 4 and the base plate 2 for mounting on a vehicle chassis. The sides of the first side plate 3 and the second side plate 4 away from the base plate 2, and the sides of the first side plate 3 and the second side plate 4 away from the back plate 5 are both open ends. A cover plate 1 is detachably installed on the open end of the box body to form a cover on the open end, and the port edge of the open end is located inside the covering surface of the cover plate 1.
[0023] In use, the back panel 5 of the box is fixed to the chassis, and the cover 1 is positioned on the side facing the vehicle's direction of travel. Electrical components are installed inside the box, and wiring is routed through the wiring holes 6. When the vehicle is in motion, the entire panel effectively prevents sand, gravel, and melted snow from entering the box, protecting the low-hanging electrical components and wiring harnesses from scratches and corrosion. When the cover 1 is removed, the two open ends can be fully opened, greatly facilitating the installation and removal of electrical components, wiring harnesses, and other related accessories inside the box.
[0024] As can be seen from the above, this utility model sets the sides of the first side plate 3 and the second side plate 4 away from the bottom plate 2, as well as the sides away from the back plate 5, as open ends. The open ends are then covered by the cover plate 1, with the port edge of the open end located inside the covering surface of the cover plate 1. When the back plate 5 is installed on the vehicle chassis, the cover plate 1 is positioned on the side facing the vehicle's forward direction. Because the cover plate 1 is a single-plate structure, and the port edge is covered inside, it effectively prevents sand, gravel, and melted snow from entering the box, protecting the low-lying electrical components and wiring harnesses of the sanitation vehicle from scratches and corrosion by sand, gravel, and melted snow, thus extending the lifespan of the sanitation vehicle's electrical components and wiring harnesses. Furthermore, this structural design facilitates opening the opening, thereby facilitating the installation and removal of electrical components and wiring harnesses within the box.
[0025] Furthermore, in this embodiment, the cover plate 1 includes a first panel 1a, a second panel 1b, and a third panel 1c connected sequentially. Obtuse angles are formed between the first panel 1a and the second panel 1b, and between the third panel 1c and the second panel 1b. In the installed state, the first panel 1a faces the base plate 2, and the third panel 1c faces the back plate 5. When the box is installed on the vehicle chassis, the second surface forms a ramp connecting the first panel 1a and the second panel 1b, thereby reducing the impact force in the forward direction of the cover plate 1 and increasing its impact resistance.
[0026] Furthermore, the third panel 1c has an inwardly turned-up edge 11c on the side away from the second panel 1b. The inwardly turned-up edge 11c is attached to the outer edge of the base plate 2 and fixed to the base plate 2 with fasteners. The back plate 5 extends to the outside of the box body on the side away from the base plate 2 to form an outer extension surface; the first panel 1a has an outwardly turned-up edge 11a on the side away from the second panel 1b. The outwardly turned-up edge 11a is attached to the outer extension surface and fixed to the outer extension surface with fasteners. The structural design of the inwardly turned-up edge 11c and the outwardly turned-up edge 11a can, on the one hand, transfer the impact force on the cover plate 1 to the box body to increase the impact resistance of the cover plate 1; on the other hand, it transfers the joint surface to prevent foreign objects from entering the box body through the joint surface between the cover plate 1 and the box body during vehicle operation.
[0027] Furthermore, the first side plate 3 and the second side plate 4 are provided with stiffening plates 7 at the open ends; the cover plate 1 is attached to the stiffening plate 7 and fixed to the stiffening plate 7 by fasteners. The stiffening plate 7 increases the contact surface between the cover plate 1 and the box body, thereby increasing the support strength of the cover plate 1; on the other hand, it provides an installation surface for the cover plate 1, so that the cover plate 1 can be installed at multiple points, thereby increasing the installation strength of the cover plate 1.
[0028] In addition, in this embodiment, the wiring hole 6 is located at the junction of the base plate 2 and the back plate 5, and passes through the first side plate 3 and the second side plate 4. When the back plate 5 is installed on the vehicle chassis, the wiring hole 6 is positioned close to the chassis, which facilitates wiring while keeping it away from the ground.
[0029] In this embodiment, a switch mounting port 8 is reserved on the first side plate 3 or the second side plate 4 for installing a disconnect switch.
[0030] In this embodiment, the back plate 5, bottom plate 2, first side plate 3, second side plate 4, and cover plate 1 are all stamped with reverse ribs to increase structural strength.
[0031] In this embodiment, both the box body and the cover plate 1 are made of stainless steel, such as 304 stainless steel, which gives them good rust resistance.
[0032] Reference Figure 3 In this embodiment, the base plate 2 is provided with a first mounting hole and a first nut 9 coaxially mounted at the first mounting hole for quick installation of electrical components.
[0033] Furthermore, there are multiple first mounting holes, and each first mounting hole has a corresponding first nut 9.
[0034] Reference Figure 4 In this embodiment, the back plate 5 is provided with a second mounting hole and a second nut 10 coaxially mounted in the second mounting hole at the position of the back plate 5 inside the box, so as to facilitate the connection of the electrical components mounted on the bottom plate 2 with the back plate 5, thereby increasing the stability of the electrical components inside the box.
[0035] Furthermore, there are multiple second mounting holes, and each second mounting hole has a corresponding second nut 10.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A protective device for electrical components under a vehicle, characterized in that, include: Box body and cover (1), wherein: The box body is provided with wiring holes (6). The box body includes a bottom plate (2), a first side plate (3) and a second side plate (4) arranged opposite to each other on both sides of the bottom plate (2), and a back plate (5) located at one end of the first side plate (3), the second side plate (4) and the bottom plate (2) for mounting on the vehicle chassis. The side of the first side plate (3) and the second side plate (4) away from the bottom plate (2) and the side of the two away from the back plate (5) are both open ends. The cover plate (1) is detachably installed on the open end of the box to form a cover on the open end, and the port edge of the open end is located inside the covering surface of the cover plate (1).
2. The vehicle undercarriage electrical component protection device according to claim 1, characterized in that, The cover plate (1) includes a first panel (1a), a second panel (1b) and a third panel (1c) connected in sequence. The first panel (1a) and the second panel (1b) form an obtuse angle, as do the third panel (1c) and the second panel (1b). In the installed state, the first panel (1a) is opposite to the bottom plate (2), and the third panel (1c) is opposite to the back plate (5).
3. A vehicle undercarriage electrical component protection device according to claim 2, characterized in that, The third panel (1c) has an inward flange (11c) on the side away from the second panel (1b). The inward flange (11c) is attached to the outer edge of the base plate (2) and fixed to the base plate (2) by fasteners.
4. A vehicle undercarriage electrical component protection device according to claim 2, characterized in that, The back panel (5) extends to the outside of the box body on the side away from the bottom panel (2) to form an extended surface; the first panel (1a) is provided with an outward flange (11a) on the side away from the second panel (1b), and the outward flange (11a) is attached to the extended surface and fixed to the extended surface by fasteners.
5. A vehicle undercarriage electrical component protection device according to claim 1, characterized in that, The first side plate (3) and the second side plate (4) are provided with stiffening plates (7) at the open end; the cover plate (1) is attached to the stiffening plate (7) and fixed to the stiffening plate (7) by fasteners.
6. A vehicle undercarriage electrical component protection device according to claim 1, characterized in that, The wiring hole (6) is located at the junction of the bottom plate (2) and the back plate (5), and passes through the first side plate (3) and the second side plate (4).
7. A vehicle undercarriage electrical component protection device according to claim 1, characterized in that, A switch mounting port (8) is reserved on the first side plate (3) or the second side plate (4).
8. A vehicle undercarriage electrical component protection device according to claim 1, characterized in that, The base plate (2) is provided with a first mounting hole and a first nut (9) coaxially mounted at the first mounting hole.
9. A vehicle undercarriage electrical component protection device according to claim 1, characterized in that, The back plate (5) is provided with a second mounting hole and a second nut (10) coaxially mounted in the second mounting hole at the position of the back plate (5) in the internal space of the box.
10. A vehicle undercarriage electrical component protection device according to any one of claims 1-9, characterized in that, The back plate (5), bottom plate (2), first side plate (3), second side plate (4), and cover plate (1) are all stamped with reverse ribs.