A protection cover device of a new energy commercial vehicle thermal management unit

Abstract

This utility model discloses a protective cover device for the thermal management unit of a new energy commercial vehicle, including a mounting bracket assembly connected to the bottom of the thermal management unit assembly and a protective cover assembly surrounding the thermal management unit assembly. The protective cover assembly is mounted on the mounting bracket assembly. By adding the protective cover assembly to the outer periphery of the thermal management unit assembly, effective protection can be provided to the top and three sides of the thermal management unit assembly, effectively reducing the risk of damage to the thermal management unit assembly and wiring harness connectors caused by high-pressure water jets, avoiding the problem of vehicle insulation failure due to component damage, significantly improving driving safety, and reducing maintenance frequency and cost. The mounting bracket assembly and the protective cover assembly adopt an integrated design, which allows the thermal management unit assembly, the mounting bracket assembly, and the protective cover assembly to be pre-assembled offline, without the need for complex assembly on the vehicle production line, effectively improving the overall assembly efficiency of the production line.

Description

Technical Field

[0001] This utility model relates to the field of thermal management technology for batteries in new energy commercial vehicles, and in particular to a protective cover device for thermal management units in new energy commercial vehicles. Background Technology

[0002] To meet the operational requirements of power batteries in new energy commercial vehicles, a power battery thermal management system is necessary, and the most critical component of this system is the battery thermal management unit. The battery thermal management unit's function is to cool the battery by exchanging heat between the refrigerant and coolant using a fan, and to heat the battery using a PTC water heater.

[0003] As the electricity demand of new energy commercial vehicles gradually increases and the charging speed requirements continue to rise, the thermal management units installed on the vehicles not only have increasingly higher performance requirements but also larger sizes. However, in practical engineering applications, the space available for vehicle layout is very limited, making it difficult to simultaneously meet the performance and layout requirements of the thermal management units.

[0004] Currently, the placement of thermal management units must simultaneously meet two core conditions: "sufficient air intake and exhaust" and "avoidance of high-pressure water spraying." Existing placements are mainly concentrated above the power battery frame or on both sides of the vehicle chassis frame. Placing the unit at the very top of the power battery frame can avoid the high-pressure water spraying conditions of the entire vehicle, but it will cause great inconvenience to the installation, operation, and subsequent after-sales maintenance of the unit. If the unit is placed on both sides of the vehicle chassis frame, after the vehicle has been submerged in water for a long time or the chassis has undergone high-pressure water spraying, the wiring harness connectors of the unit are very likely to be damaged, which will lead to insulation failure of the entire vehicle and failure to drive normally. This not only poses a serious safety hazard, but also significantly increases maintenance costs.

[0005] To address this issue, a protective cover device for the thermal management unit of a new energy commercial vehicle is proposed, which can resolve the aforementioned contradiction between layout and protection. Utility Model Content

[0006] The purpose of this invention is to provide a protective cover device for the thermal management unit of a new energy commercial vehicle, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A protective cover device for a thermal management unit of a new energy commercial vehicle includes a mounting bracket assembly connected to the bottom of the thermal management unit assembly and a protective cover assembly disposed around the periphery of the thermal management unit assembly. The protective cover assembly is mounted on the mounting bracket assembly, wherein:

[0009] The mounting bracket assembly includes a unit carrier connected to the thermal management unit assembly, and the unit carrier is provided with a cover carrier for providing a mounting base for the protective cover assembly;

[0010] The protective cover assembly includes a top cover plate located on top of the thermal management unit assembly and mounted on the cover support member. The top cover plate is provided with a side air inlet cover plate and a side air outlet cover plate. The side air inlet cover plate is provided at the air inlet on both sides of the thermal management unit assembly, and the side air outlet cover plate is located at the air outlet of the thermal management unit assembly.

[0011] The side air inlet guard plate includes a side plate fixedly connected to the bottom side of the top guard plate. A protective net is embedded in the side plate. A sponge strip is pasted on the side of the side plate facing the thermal management unit assembly. One side of the sponge strip is in contact with the surface of the thermal management unit assembly and is located close to the side air outlet guard plate.

[0012] As a preferred technical solution, the side air outlet guard plate includes an air outlet grille fixedly connected to the bottom of the top guard plate and located between the two side plates. The air outlet grille has a plurality of air guide strips equidistantly distributed along its length direction integrally formed thereon, and an air outlet hole is formed between the air outlet grille and the air guide strips.

[0013] As a preferred technical solution, the bending direction of the air guide strip is oriented towards the thermal management unit assembly.

[0014] As a preferred technical solution, one of the side plates has a reserved opening at the top that is compatible with the wiring harness connector of the thermal management unit assembly.

[0015] As a preferred technical solution, two opposite sides of the top guard plate are bent downwards at a bending angle of 90°. The side plates and the bent portions of the top guard plate are arranged in a one-to-one correspondence, and the side plates are fixedly connected to the inner side of the corresponding bent portion of the top guard plate. Two oppositely arranged L-shaped baffles are fixedly connected to the bottom of the top guard plate, and the air outlet grille is fixedly connected to the inner side of one of the L-shaped baffles.

[0016] As a preferred technical solution, the bottom of both the side panel and the air vent grille are bent inwards, with a bending angle of 5°-15°.

[0017] As a preferred technical solution, the unit support component includes a bracket installed at the bottom of the thermal management unit assembly. Two symmetrically arranged uprights are welded to one end of the bracket away from the thermal management unit assembly, and mounting seats are welded to both sides of the uprights.

[0018] As a preferred technical solution, a first diagonal brace is welded between the top of the bracket and the upright, and a second diagonal brace is welded between the bottom of the bracket and the upright.

[0019] As a preferred technical solution, the cover support includes a clamping rod that is clamped on the bracket and fixedly connected to the thermal management unit assembly. Both ends of the top of the clamping rod are equipped with supports, and the side plate and another L-shaped baffle are respectively fixedly connected to the surface of the corresponding support.

[0020] This utility model has at least the following beneficial effects:

[0021] This application, by adding a protective cover assembly to the outer periphery of the thermal management unit assembly, effectively protects the top and three sides of the thermal management unit assembly, effectively reducing the risk of damage to the thermal management unit assembly and wiring harness connectors caused by high-pressure water jets, avoiding vehicle insulation failure due to component damage, significantly improving driving safety, and reducing maintenance frequency and costs. The integrated design of the mounting bracket assembly and the protective cover assembly allows the thermal management unit assembly, mounting bracket assembly, and protective cover assembly to be pre-assembled offline, eliminating the need for complex assembly on the vehicle production line, effectively improving the overall assembly efficiency of the production line. In addition, this structural design also makes subsequent inspection and maintenance operations of the unit more convenient, reducing the difficulty of after-sales work. The integrated structure greatly improves the feasibility of the thermal management unit assembly's layout on the vehicle, allowing for flexible adjustment of the installation position according to the vehicle space, no longer limited to the traditional fixed layout area. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is an exploded view of the structure of this utility model;

[0024] Figure 3 This is a side view of the structure of this utility model;

[0025] Figure 4 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0026] In the diagram: 1. Thermal management unit assembly; 100. Mounting bracket assembly; 110. Unit load-bearing component; 111. Bracket; 112. Upright pole; 113. Mounting base; 114. First diagonal brace; 115. Second diagonal brace; 120. Cover load-bearing component; 121. Clamping rod; 122. Support; 200. Protective cover assembly; 210. Top guard plate; 211. L-shaped baffle; 220. Side air inlet guard plate; 221. Side plate; 222. Protective net; 223. Sponge strip; 224. Reserved opening; 230. Side air outlet guard plate; 231. Air outlet grille; 232. Air guide strip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-4 This utility model provides a protective cover device for a thermal management unit of a new energy commercial vehicle, including a mounting bracket assembly 100 connected to the bottom of the thermal management unit assembly 1 and a protective cover assembly 200 covering the periphery of the thermal management unit assembly 1. The protective cover assembly 200 is mounted on the mounting bracket assembly 100. The mounting bracket assembly 100 includes a unit support member 110 connected to the thermal management unit assembly 1, and the unit support member 110 is provided with a cover support member 120 for providing a mounting foundation for the protective cover assembly 200. Assembly 200 includes a top cover plate 210 located on top of the thermal management unit assembly 1 and mounted on the cover support member 120. The top cover plate 210 has side air inlet guards 220 and side air outlet guards 230. The side air inlet guards 220 are respectively located at the air inlets on both sides of the thermal management unit assembly 1, and the side air outlet guards 230 are located at the air outlets of the thermal management unit assembly 1. The side air inlet guards 220 include side plates 221 fixedly connected to the bottom side of the top cover plate 210. A protective net 222 is embedded in the side plate 221. The protective net 222 uses a 1 The protective mesh has a 0-mesh steel wire mesh. A sponge strip 223 is attached to the side panel 221 facing the thermal management unit assembly 1. One side of the sponge strip 223 contacts the surface of the thermal management unit assembly 1 and is positioned near the side exhaust guard plate 230. The unit support component 110 stably supports the thermal management unit assembly 1, preventing displacement or damage due to vehicle movement. The cover support component 120 provides a reliable installation base for the protective cover assembly 200, ensuring a fixed relative position between the protective cover assembly 200 and the unit, and precise coverage of the protective area. The top guard plate 21... The top of the unit can be directly protected to prevent foreign objects from falling or water from impacting it; the side air intake panels 220 on both sides form lateral protection through the side panels 221, while the protective nets 222 on the side panels 221 can block external debris from entering the unit and prevent components from getting stuck, while ensuring unobstructed air intake and meeting the unit's heat dissipation requirements; the sponge strips 223 on the inner side of the side panels 221 are in close contact with the surface of the unit, which can effectively prevent the hot air discharged by the unit from flowing back to the air intake side, avoid the air intake temperature from rising and affecting the cooling efficiency, and indirectly ensure the stable performance of the unit.

[0029] The side air outlet guard plate 230 includes an air outlet grille 231 fixedly connected to the bottom of the top guard plate 210 and located between two side plates 221. Several air guide strips 232 are integrally formed on the air outlet grille 231 and are evenly distributed along its length direction, forming an air outlet hole between the air outlet grille 231 and the air guide strips 232. This ensures that the hot air generated by the unit is smoothly discharged, avoiding the accumulation of hot air inside the unit and causing performance degradation. The air outlet grille 231 itself can form a physical protection for the air outlet side of the unit, blocking foreign objects such as gravel and dust from entering the unit from the air outlet direction. The integrally formed design of the air guide strips 232 enhances the structural rigidity of the air outlet grille 231, preventing deformation under long-term use or external force, and extending the service life of the protective components.

[0030] The air guide strip 232 is bent towards the thermal management unit assembly 1; this prevents the air guide strip 232 from extending outward, thus avoiding additional lateral space occupation of the vehicle and adapting to the compact layout requirements of the vehicle. It does not increase the width of the vehicle due to the protective cover assembly 200. After the air guide strip 232 is bent towards the unit, there are no sharp edges exposed on its outer side, which can prevent pedestrians from being scratched by sharp edges when approaching the vehicle, thus improving the safety of the device during use.

[0031] One of the side panels 221 has a reserved opening 224 on its top that is compatible with the wiring harness connector of the thermal management unit assembly 1. The reserved opening 224 can accurately match the installation position of the wiring harness connector, avoid interference between the protective cover assembly 200 and the electrical connection components, ensure that the wiring harness connector can be installed and used normally, and ensure the stability of the unit's electrical system.

[0032] The top guard plate 210 has two opposite sides that are bent downwards at a 90° angle. The side plates 221 correspond one-to-one with the bent portions of the top guard plate 210, and the side plates 221 are fixedly connected to the inner side of the corresponding bent portion of the top guard plate 210. The bottom of the top guard plate 210 is fixedly connected to two oppositely arranged L-shaped baffles 211, and the air vent grille 231 is fixedly connected to the inner side of one of the L-shaped baffles 211. The bending design of the opposite sides of the top guard plate 210 can significantly improve its structural rigidity, prevent the top guard plate 210 from deforming due to vibration or external pressure, and ensure the long-lasting top protection effect. The corresponding fixing of the side plates 221 to the bent portions of the top guard plate 210 and the connection of the air vent grille 231 to one of the L-shaped baffles 211 make the components of the protective cover assembly 200 form a solid overall structure. During vehicle operation, no components will loosen or shift, ensuring that the protection range does not shift, while simplifying the assembly process of the protective cover assembly 200.

[0033] The bottom of both the side panel 221 and the air vent grille 231 is bent inwards at an angle of 5°-15°. The bent bottom structure can enhance the structural strength of the side panel 221 and the air vent grille 231, prevent sagging or deformation after long-term use, extend the service life of the components, and the inward bending direction can guide rainwater to flow away from the unit, preventing rainwater from accumulating at the bottom of the components and seeping into the unit, further enhancing the waterproof capability of the device and making it suitable for vehicle wading or driving in rainy weather.

[0034] The unit support component 110 includes a bracket 111 installed at the bottom of the thermal management unit assembly 1. Two symmetrically arranged uprights 112 are welded to one end of the bracket 111 away from the thermal management unit assembly 1. Mounting seats 113 are welded to both sides of the uprights 112. The unit support component 110 can provide balanced support to the bottom of the unit, ensuring the overall stability of the unit under stress. The bracket 111 connects the unit to the uprights 112, and the uprights 112 are fixed to the vehicle through the mounting seats 113, forming a reliable connection path between the unit, the unit support component 110 and the vehicle, ensuring that the unit will not loosen under conditions such as vehicle bumps and turns, and greatly improving installation stability.

[0035] The bracket 111 has a first diagonal brace 114 welded between its top and the upright 112, and a second diagonal brace 115 welded between its bottom and the upright 112. The first diagonal brace 114 and the second diagonal brace 115 are connected to the upright 112 from the top and bottom of the bracket 111, respectively, forming a triangular support structure. This structure can effectively distribute the weight of the unit and the vibration and impact forces during vehicle operation, preventing the connection between the bracket 111 and the upright 112 from breaking or deforming due to concentrated force. This significantly improves the impact resistance and deformation resistance of the unit's load-bearing component 110, ensuring the stability of the support.

[0036] The cover support 120 includes a clamping rod 121 that is clamped onto the bracket 111 and fixedly connected to the thermal management unit assembly 1. Both ends of the top of the clamping rod 121 are equipped with supports 122. The side plate 221 and another L-shaped baffle 211 are respectively fixedly connected to the surface of the corresponding support 122. The clamping rod 121 connects the bracket 111 and the unit through a dual method of clamping and fixing, which can ensure that the cover support 120 itself is accurately and stably positioned and will not shift due to vehicle vibration. The support 122 provides a unified installation benchmark for the side plate 221 and the L-shaped baffle 211, so that the components of the protective cover assembly 200 can be accurately aligned, avoiding protective gaps or poor air intake due to installation deviations. At the same time, it ensures the reliability of the connection between the protective cover assembly 200 and the mounting bracket assembly 100, and ensures the stability of the overall structure.

[0037] The working principle of this utility model is as follows:

[0038] First, connect the unit carrier 110 to the bottom of the thermal management unit assembly 1, and fix it to the bottom of the unit using the bracket 111. Then, use the mounting seats 113 on both sides of the upright 112 to fix the entire unit carrier 110 to the designated position of the vehicle (such as the chassis frame or the perimeter of the power battery frame). Next, clamp the locking rod 121 of the cover carrier 120 onto the bracket 111 and fix it to the unit. The support 122 at the top of the locking rod 121 provides the mounting base for the protective cover assembly 200. Then, fix the side plate 221 to the bent part of the top guard plate 210, and fix the air outlet grille 231 to one of the L-shaped baffles 211 to complete the assembly of the protective cover assembly 200. Finally, fix the other L-shaped baffle 211 and the side plate 221 to the corresponding supports 122 to complete the assembly and fixation of the entire device.

[0039] When the thermal management unit is running, cold outside air enters the unit through the protective mesh 222 of the side air inlet guard plate 220, providing cooling air for the heat exchange between the refrigerant and coolant. During this process, the sponge strip 223 closely adheres to the surface of the unit, preventing the hot air discharged from the unit from flowing back to the air inlet side, ensuring a stable air temperature entering the unit and guaranteeing cooling efficiency. The hot air generated after heat exchange is discharged through the air outlet of the side air outlet guard plate 230, and the air guide strip 232 guides the flow of hot air, preventing the disorderly diffusion of hot air from affecting surrounding components. At the same time, the protective structure formed by the top guard plate 210, side plate 221, and air outlet grille 231 can block high-pressure water and foreign objects (such as gravel and dust) from directly impacting the unit and wiring harness connectors, preventing insulation failure or performance failure caused by component damage. When the vehicle is wading through water or driving in the rain, the bending structure at the bottom of the side plate 221 and air outlet grille 231 guides rainwater to flow away from the unit, further reducing the risk of rainwater infiltration and ensuring the continuous and stable operation of the unit.

[0040] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective cover device for a thermal management unit of a new energy commercial vehicle, characterized in that, The assembly includes a mounting bracket assembly (100) connected to the bottom of the thermal management unit assembly (1) and a protective cover assembly (200) surrounding the thermal management unit assembly (1). The protective cover assembly (200) is mounted on the mounting bracket assembly (100), wherein: The mounting bracket assembly (100) includes a unit carrier (110) connected to the thermal management unit assembly (1), and the unit carrier (110) is provided with a cover carrier (120) for providing a mounting base for the protective cover assembly (200); The protective cover assembly (200) includes a top cover plate (210) located on the top of the thermal management unit assembly (1) and mounted on the cover support member (120). The top cover plate (210) is provided with a side air inlet cover plate (220) and a side air outlet cover plate (230). The side air inlet cover plate (220) is provided at the air inlet on both sides of the thermal management unit assembly (1), and the side air outlet cover plate (230) is located at the air outlet of the thermal management unit assembly (1). The side air inlet guard plate (220) includes a side plate (221) fixedly connected to the bottom side of the top guard plate (210). A protective net (222) is embedded on the side plate (221). A sponge strip (223) is pasted on the side of the side plate (221) facing the thermal management unit assembly (1). One side of the sponge strip (223) is in contact with the surface of the thermal management unit assembly (1) and is set close to the side air outlet guard plate (230).

2. The protective cover device for the thermal management unit of a new energy commercial vehicle according to claim 1, characterized in that: The side air outlet guard plate (230) includes an air outlet grille (231) fixedly connected to the bottom of the top guard plate (210) and located between the two side plates (221). The air outlet grille (231) has a plurality of air guide strips (232) equidistantly distributed along its length direction integrally formed on it. An air outlet hole is formed between the air outlet grille (231) and the air guide strips (232).

3. The protective cover device for the thermal management unit of a new energy commercial vehicle according to claim 2, characterized in that: The air guide strip (232) is bent in the direction of the thermal management unit assembly (1).

4. The protective cover device for the thermal management unit of a new energy commercial vehicle according to claim 3, characterized in that: One of the side panels (221) has a reserved opening (224) at the top that is compatible with the wiring harness connector of the thermal management unit assembly (1).

5. The protective cover device for the thermal management unit of a new energy commercial vehicle according to claim 4, characterized in that: Two opposite sides of the top guard plate (210) are bent downwards at a 90° angle. The side plates (221) are arranged in a one-to-one correspondence with the bent parts of the top guard plate (210), and the side plates (221) are fixedly connected to the inner side of the corresponding bent part of the top guard plate (210). Two oppositely arranged L-shaped baffles (211) are fixedly connected to the bottom of the top guard plate (210), and the air outlet grille (231) is fixedly connected to the inner side of one of the L-shaped baffles (211).

6. The protective cover device for the thermal management unit of a new energy commercial vehicle according to claim 5, characterized in that: The bottom of both the side panel (221) and the air vent grille (231) are bent inwards at an angle of 5°-15°.

7. The protective cover device for the thermal management unit of a new energy commercial vehicle according to claim 6, characterized in that: The unit support component (110) includes a bracket (111) installed at the bottom of the thermal management unit assembly (1). Two symmetrically arranged uprights (112) are welded to one end of the bracket (111) away from the thermal management unit assembly (1). Mounting seats (113) are welded to both sides of the uprights (112).

8. The protective cover device for the thermal management unit of a new energy commercial vehicle according to claim 7, characterized in that: A first diagonal brace (114) is welded between the top of the bracket (111) and the upright (112), and a second diagonal brace (115) is welded between the bottom of the bracket (111) and the upright (112).

9. The protective cover device for the thermal management unit of a new energy commercial vehicle according to claim 8, characterized in that: The cover support (120) includes a clamping rod (121) that is clamped on the bracket (111) and fixedly connected to the thermal management unit assembly (1). Both ends of the top of the clamping rod (121) are equipped with supports (122). The side plate (221) and another L-shaped baffle (211) are respectively fixedly connected to the surface of the corresponding support (122).

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