A dump truck power battery A box

Abstract

This utility model provides a power battery A-type housing for dump trucks, belonging to the field of dump truck technology. It includes a lower housing assembly, a maintenance cover, an inlet pipe, a return pipe, a fire detector, and a cover assembly. The lower housing assembly has a receiving cavity, cooling pipes, and a maintenance port. The maintenance cover is installed at one end of the lower housing assembly and is detachably connected to it. The inlet and return pipes are both installed on the lower housing assembly and are connected to both ends of the cooling pipes. The fire detector is installed on the lower housing assembly and located in the receiving cavity. The cover assembly is fixedly installed on the lower housing assembly. The power battery A-type housing for dump trucks provided by this utility model improves the heat dissipation of the battery A-type housing, does not reduce battery life and performance, and has high safety; at the same time, it makes the maintenance operation of the battery A-type housing convenient and quick.

Description

Technical Field

[0001] This utility model belongs to the field of dump truck technology, and more specifically, it relates to a dump truck power battery A box. Background Technology

[0002] With increasing global focus on environmental protection and energy conservation, new energy vehicles, especially electric dump trucks, are gradually becoming the replacement for traditional internal combustion engine dump trucks. In traditional off-highway sectors such as mines and construction sites, electric dump trucks offer significant advantages. In electric off-highway dump trucks, the power battery is the core component of the system, determining the vehicle's range, load capacity, and overall performance. Because these vehicles typically operate in extreme working environments (such as mines and construction sites), the requirements for the battery are extremely high. Currently, the battery A-box of dump trucks, primarily serving as the main energy supply battery, still uses a traditional structure. This structure results in poor heat dissipation, preventing the large amount of heat generated during battery use from dissipating, affecting battery life and performance, and also reducing safety. Furthermore, maintenance of the traditional battery A-box structure requires complete disassembly of the box cover, making the maintenance process complex and inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a power battery A box for dump trucks, so as to solve the technical problems of poor heat dissipation and safety of the battery A box of dump trucks and inconvenient maintenance operations in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a power battery A housing for a dump truck, comprising:

[0005] The lower housing assembly has a receiving cavity for accommodating the battery assembly and cooling pipes located below the receiving cavity; one end of the lower housing assembly has an inspection port communicating with the receiving cavity;

[0006] An inspection cover is installed at one end of the lower housing assembly and is detachably connected to the lower housing assembly; the inspection cover is used to block or open the inspection port;

[0007] The liquid inlet pipe is installed on the lower housing assembly and is connected to one end of the cooling pipe;

[0008] The return pipe is installed on the lower housing assembly and is connected to the other end of the cooling pipe.

[0009] A fire detector is installed on the lower housing assembly and located in the receiving cavity;

[0010] The lid assembly is fixedly installed on the lower housing assembly and is used to close the receiving cavity.

[0011] In one possible implementation, the lower housing assembly includes a base plate, two side panels respectively fixedly installed on both sides of the base plate, and two end panels respectively installed on both ends of the base plate, the base plate, the two side panels, and the two end panels forming the receiving cavity; the inspection port is opened on one of the end panels; and the cooling pipes are located inside the base plate.

[0012] In one possible implementation, the side panel is an L-shaped profile, the bottom plate is fixedly installed between two L-shaped profiles, and the upper and lower ends of the L-shaped profiles and the two end panels are provided with outwardly extending horizontal bends, and the box cover assembly is provided with mating flanges.

[0013] In one possible implementation, there are multiple base plates arranged side by side; each base plate is provided with a cooling pipe, and there are multiple inlet pipes and return pipes, each corresponding to one of the multiple base plates.

[0014] In one possible implementation, the cavity is provided with a plurality of intermediate beams for separation, and each of the two intermediate beams at both ends is provided with a fixing plate for fixing the fire detector.

[0015] In one possible implementation, one end of the lower housing assembly has multiple mounting holes, one end of the liquid inlet pipe and the liquid return pipe passes through the corresponding mounting holes and is connected to the cooling pipeline, and the other end is located outside the lower housing assembly.

[0016] In one possible implementation, the bottom of the receiving cavity has two connecting holes that are respectively connected to both ends of the cooling pipe, and the ends of the liquid inlet pipe and the liquid return pipe that extend into the receiving cavity are respectively connected to and communicate with the corresponding connecting holes.

[0017] In one possible implementation, the cavity is further provided with a flexible liner to reduce vibration.

[0018] The beneficial effects of the dump truck power battery A-box provided by this utility model are as follows: Compared with the prior art, the dump truck power battery A-box of this utility model fixes the battery pack in the receiving cavity of the lower box assembly, and uses the box cover assembly to seal the receiving cavity from top to bottom; then the entire battery A-box is fixedly installed on the dump truck. During use, a low-temperature medium is added to the cooling pipe through the inlet pipe, and heat exchange occurs with the heat generated by the battery pack in the cooling pipe, thereby cooling the battery pack and ensuring high performance and long service life of the battery pack; then the cooling medium flows out from the return pipe. A fire detector is installed in the receiving cavity to monitor whether there is a fire inside the battery A-box, improving the safety of the battery A-box; finally, when inspecting the battery A-box, only the inspection cover needs to be opened to inspect the battery pack, etc., which is convenient and quick. Through this structure, the heat dissipation of the battery A-box is improved, without reducing the battery's life and performance, and with high safety; at the same time, the inspection and maintenance operation of the battery A-box is convenient and quick. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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 these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of the dump truck power battery box A provided in this embodiment of the utility model. Figure 1 ;

[0021] Figure 2 An exploded view of the A-box of the dump truck power battery provided in this embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram showing the connection between the liquid inlet pipe and the cooling pipe provided in an embodiment of the present utility model;

[0023] Figure 4 A partial schematic diagram of the lower housing assembly provided in an embodiment of this utility model;

[0024] Figure 5 A schematic diagram of the structure of the dump truck power battery box A provided in this embodiment of the utility model. Figure 2 .

[0025] The following are the labeling elements in the figure:

[0026] 10. Lower housing assembly; 11. Receiving cavity; 12. Cooling pipes; 13. Inspection port; 14. Base plate; 15. Side panel; 16. End panel; 17. Horizontal bend; 18. Mounting hole; 20. Inspection cover plate; 30. Liquid inlet pipe; 40. Liquid return pipe; 50. Fire detector; 60. Cover assembly; 61. Butt flange; 62. Cover strip; 70. Intermediate beam; 71. Fixing plate; 72. Pressure relief valve; 73. Divider valve; 74. Fire communication port; 75. Sprinkler head; 80. Battery assembly. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Please see Figures 1 to 5The present invention provides a description of the power battery A housing for a dump truck. A power battery A housing for a dump truck includes a lower housing assembly 10, a maintenance cover 20, an inlet pipe 30, a return pipe 40, a fire detector 50, and a cover assembly 60. The lower housing assembly 10 has a receiving cavity 11 for accommodating a battery assembly 80 and a cooling pipe 12 located below the receiving cavity 11. One end of the lower housing assembly 10 has a maintenance port 13 communicating with the receiving cavity 11. The maintenance cover 20 is installed at one end of the lower housing assembly 10 and is connected to the lower housing assembly. Component 10 is detachably connected; inspection cover 20 is used to block or open inspection port 13; liquid inlet pipe 30 is installed on lower housing component 10 and connected to one end of cooling pipe 12; liquid return pipe 40 is installed on lower housing component 10 and connected to the other end of cooling pipe 12; fire detector 50 is installed on lower housing component 10 and located in receiving cavity 11; housing cover component 60 is fixedly installed on lower housing component 10 and used to close receiving cavity 11.

[0032] The battery A housing for dump trucks provided by this utility model, compared with the prior art, fixes the battery assembly 80 in the receiving cavity 11 of the lower housing assembly 10, and uses the housing cover assembly 60 to seal the receiving cavity 11 from top to bottom; then the entire battery A housing is fixedly installed on the dump truck. During use, a low-temperature medium is added to the cooling pipe 12 through the liquid inlet pipe 30, and heat exchange occurs between the medium and the heat generated by the battery assembly 80 in the cooling pipe 12, thereby cooling the battery assembly 80 and ensuring its high performance and long service life; then the cooling medium flows out from the liquid return pipe 40. A fire detector 50 is installed in the receiving cavity 11 to monitor whether there is a fire inside the battery A housing, improving the safety of the battery A housing; finally, when inspecting the battery A housing, only the inspection cover 20 needs to be opened to inspect the battery assembly 80, etc., which is convenient and quick. This structure improves the heat dissipation of the battery A housing, does not reduce the battery's life and performance, and has high safety; at the same time, it makes the inspection and maintenance of the battery A housing convenient and quick.

[0033] The cover assembly 60 is equipped with a sealing strip installed at the joint with the lower housing assembly 10 to ensure the airtightness of the receiving cavity 11. A handle is also provided on the upper surface of the cover assembly 60 for easy handling and installation. The lower housing assembly 10 is made of high-strength aluminum alloy, which not only has good strength but also effectively reduces the overall weight of the housing while providing sufficient impact and vibration resistance. The inner wall of the receiving cavity 11 is equipped with a fireproof and heat-insulating layer, which provides additional protection against the spread of fire in the event of an abnormality in the battery assembly 80. A flow regulating valve is installed at the inlet of the liquid inlet pipe 30, which precisely controls the inflow of the cryogenic medium to meet the cooling requirements of the battery assembly 80 under different operating conditions. The return pipe 40 is connected to the cooling system's recovery device, which filters and treats the coolant for reuse, thus saving resources and reducing operating costs. The fire detector 50 is connected to the vehicle's central control system. Once a fire hazard is detected within the cavity 11, the fire detector 50 immediately sends a signal to the central control system, which then triggers the alarm and takes appropriate fire prevention measures. The edge of the access port 13 is provided with a guide groove, allowing the access cover 20 to be accurately installed along the guide groove. A sealing gasket is also provided within the guide groove to further improve the sealing of the access port 13. An observation window is also provided on the access cover 20, allowing a preliminary view of the cavity 11 without opening the access cover 20.

[0034] Please see Figure 1 and Figure 2 As a specific embodiment of the dump truck power battery A box provided by this utility model, the lower box assembly 10 includes a base plate 14, two side panels 15 respectively fixedly installed on both sides of the base plate 14, and two end panels 16 respectively installed on both ends of the base plate 14. The base plate 14, the two side panels 15, and the two end panels 16 form a receiving cavity 11. An inspection port 13 is opened on one of the end panels 16. Cooling pipes 12 are arranged inside the base plate 14. The lower box assembly 10 with the receiving cavity 11 is formed by the base plate 14, the two side panels 15, and the two end panels 16. One of the end panels 16 is used to open the inspection port 13, and the liquid inlet pipe 30 and the liquid return pipe 40 are located on one side of the inspection port 13, thereby facilitating operation by the staff. The cooling pipes 12 are arranged inside the base plate 14, without occupying the space of the receiving cavity 11. A connecting hole is provided on the base plate 14 to connect to both ends of the cooling pipe 12, and one end of the liquid inlet pipe 30 and the liquid return pipe 40 are respectively connected to the corresponding connecting hole.

[0035] Please see Figure 1 and Figure 2As a specific embodiment of the dump truck power battery A box provided by this utility model, the side panel 15 is an L-shaped profile, and the bottom plate 14 is fixedly installed between two L-shaped profiles. The upper and lower ends of the L-shaped profiles and the two end panels 16 are provided with outwardly extending horizontal bending portions 17. The box cover assembly 60 is provided with a mating flange 61. The use of L-shaped profiles improves the strength and load-bearing capacity of the entire lower box assembly 10, making it less prone to deformation. When the box cover assembly 60 is assembled with the side panel 15, end panels 16, and bottom plate 14, the mating flange 61 can match the horizontal bending portions 17 at the upper and lower ends of the L-shaped profiles and end panels 16. The mating flange 61 and the horizontal bending portions 17 are provided with connecting holes and are fixed using multiple bolts and other fasteners. This structural design allows the box cover assembly 60 to stably cover the frame structure composed of two L-shaped profiles, end panels 16, and bottom plate 14. The horizontal bending portions 17 not only serve to mate and position with the mating flange 61 but also increase the stability of the entire structure. In actual use, this structure can effectively prevent the lid assembly 60 from accidentally slipping off or loosening.

[0036] Please see Figure 1 and Figure 2 As a specific embodiment of the dump truck power battery A-type housing provided by this utility model, there are multiple base plates 14 arranged side by side; each base plate 14 is equipped with cooling pipes 12, multiple inlet pipes 30 and return pipes 40, each corresponding to one of the multiple base plates 14; by setting multiple base plates 14, each cooling pipe 12 can work independently without mutual interference or influence. Each inlet pipe 30 independently delivers coolant to the corresponding cooling pipe 12 in the base plate 14, ensuring that the coolant can enter each cooling pipe 12 evenly and efficiently. The return pipe 40 is responsible for returning the cooled liquid from the cooling pipes 12 of each base plate 14, forming a complete cooling circulation system. This structural design of multiple base plates 14 arranged side by side and corresponding to inlet pipes 30 and return pipes 40 greatly improves the cooling efficiency and uniformity. When a cooling problem occurs in a certain base plate 14, its inlet pipe 30, return pipe 40 and internal cooling pipe 12 can be inspected and repaired separately without affecting the normal cooling operation of other base plates 14.

[0037] Please see Figure 2As a specific embodiment of the dump truck power battery A housing provided by this utility model, the receiving cavity 11 is provided with multiple intermediate beams 70 for separation. Each of the two intermediate beams 70 located at both ends is provided with a fixing plate 71 for fixing and installing a fire detector 50. Each fixing plate 71 has multiple positioning holes, the size and spacing of which are specifically designed according to the model of the fire detector 50, ensuring that the fire detector 50 is securely installed on the fixing plate 71. By setting multiple intermediate beams 70 in the receiving cavity 11, the receiving cavity 11 is divided into multiple independent areas, and multiple battery packs 80 are respectively installed between two adjacent intermediate beams 70, making installation, disassembly, and maintenance operations faster and more efficient.

[0038] Please see Figure 1 , Figure 2 and Figure 4 As a specific embodiment of the dump truck power battery A housing provided by this utility model, a plurality of mounting holes 18 are provided at one end of the lower housing assembly 10. One end of the liquid inlet pipe 30 and the liquid return pipe 40 passes through the corresponding mounting holes 18 and connects to the cooling pipe 12, while the other end is located outside the lower housing assembly 10. Specifically, the mounting holes 18 penetrate through the end of the lower housing assembly 10, allowing one end of the liquid inlet pipe 30 and the liquid return pipe 40 to pass through the corresponding mounting holes 18 and enter the receiving cavity 11, and connect with the communicating hole at the bottom of the receiving cavity 11, thereby completing the operation of connecting with the cooling pipe 12. The other end of the liquid inlet pipe 30 and the liquid return pipe 40 is located outside the housing, facilitating liquid inlet and liquid return operations.

[0039] One end of the lower housing assembly 10 is equipped with a pressure relief valve 72 and a battery compartment valve 73. When the pressure exceeds the safety threshold, the pressure relief valve 72 will quickly open to release the excess pressure, ensuring that the pressure inside the lower housing assembly 10 is always within a safe range, avoiding a series of dangers caused by excessive pressure. The main function of the battery compartment valve 73 is to regulate the pressure balance inside the battery, ensuring the safe operation of the battery. During the charging and discharging process of the battery, gas is generated, causing changes in the internal pressure of the battery. The compartment valve 73 can sense this pressure change and open or close as necessary to maintain the pressure balance inside the battery, preventing the battery from being damaged due to excessive internal pressure, thereby extending the battery's service life. The lower housing assembly 10 is equipped with a fire communication port 74 and a sprinkler head 75. The fire communication port 74 ensures that in an emergency, information about a fire inside the housing can be quickly transmitted to the central control system, preventing a major disaster. At the same time, the central control system controls the sprinkler head 75 to spray water to ensure that the flames are suppressed in a short time. The sprinkler head 75 is also connected to the fire control system. Once the sprinkler head 75 is activated, the control system will immediately receive feedback information and then take further emergency response measures.

[0040] The lid assembly 60 is also equipped with a lid retaining strip 62, which is divided into multiple segments and arranged along the outer contour of the lid assembly 60. The multi-segment lid retaining strip 62 effectively enhances the structural stability of the lid assembly 60. Because it is arranged along the outer contour of the lid assembly 60, it can evenly distribute the external forces experienced by the lid assembly 60 during use, whether it is pressure from above or lateral forces generated by shaking or collisions during transportation. Each segment of the lid retaining strip 62 is tightly connected, forming a continuous protective band. The material of the lid retaining strip 62 is specially selected, possessing excellent pressure resistance and corrosion resistance, enabling it to adapt to various harsh environmental conditions and ensuring that the lid maintains a good seal during long-term use.

[0041] As a specific embodiment of the power battery A box of the dump truck provided by this utility model, the cavity 11 is also provided with a flexible liner for reducing vibration; specifically, the flexible liner is made of materials such as rubber pads and polyurethane, which can effectively reduce the damage to the battery assembly 80 caused by external factors such as vibration and collision, strengthen the protective structure of the entire box, and form a good buffering effect.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power battery housing for a dump truck, characterized in that, include: The lower housing assembly has a receiving cavity for accommodating the battery assembly and cooling pipes located below the receiving cavity; one end of the lower housing assembly has an inspection port communicating with the receiving cavity; An inspection cover is installed at one end of the lower housing assembly and is detachably connected to the lower housing assembly; the inspection cover is used to block or open the inspection port; The liquid inlet pipe is installed on the lower housing assembly and is connected to one end of the cooling pipe; The return pipe is installed on the lower housing assembly and is connected to the other end of the cooling pipe. A fire detector is installed on the lower housing assembly and located in the receiving cavity; The lid assembly is fixedly installed on the lower housing assembly and is used to close the receiving cavity.

2. The dump truck power battery A housing as described in claim 1, characterized in that, The lower housing assembly includes a base plate, two side panels respectively fixedly installed on both sides of the base plate, and two end panels respectively installed on both ends of the base plate. The base plate, the two side panels, and the two end panels form the receiving cavity. The inspection port is opened on one of the end panels. The cooling pipes are located inside the base plate.

3. The dump truck power battery A housing as described in claim 2, characterized in that, The side panel is an L-shaped profile, and the bottom plate is fixedly installed between the two L-shaped profiles. The upper and lower ends of the L-shaped profiles and the two end panels are provided with outwardly extending horizontal bends, and the box cover assembly is provided with mating flanges.

4. The dump truck power battery A housing as described in claim 2, characterized in that, There are multiple base plates arranged side by side; each base plate is equipped with a cooling pipe, and there are multiple inlet pipes and return pipes, which correspond one-to-one with each of the multiple base plates.

5. The dump truck power battery A housing as described in claim 1, characterized in that, The cavity is provided with multiple intermediate beams for separation, and each of the two intermediate beams at both ends is provided with a fixing plate for fixing the fire detector.

6. The dump truck power battery A housing as described in claim 1, characterized in that, The lower housing assembly has multiple mounting holes at one end. One end of the liquid inlet pipe and the liquid return pipe passes through the corresponding mounting holes and is connected to the cooling pipe, while the other end is located outside the lower housing assembly.

7. The dump truck power battery A housing as described in claim 1, characterized in that, The bottom of the receiving cavity has two connecting holes that are respectively connected to both ends of the cooling pipe. The ends of the liquid inlet pipe and the liquid return pipe that extend into the receiving cavity are respectively connected to the corresponding connecting holes.

8. The dump truck power battery A housing as described in claim 1, characterized in that, The cavity is also equipped with a flexible liner to reduce vibration.

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