Power battery box assembly and new energy engineering vehicle

Abstract

The utility model discloses a power battery box assembly and a new energy engineering vehicle. The power battery box assembly comprises a power battery frame, a battery box door and a power battery fuse, the internal space of the power battery frame is used for mounting a plurality of power batteries; the battery box door is arranged on the opening surface of the power battery frame and is used for sealing the power battery frame and protecting the plurality of power batteries; the power battery fuse is connected in a power battery loop formed by connecting a plurality of power batteries in series, the power battery fuse is arranged on the outer side surface of the battery box door, and the power battery fuse, the battery box door and the power batteries are fixed together through detachable parts, so that the power battery fuse is linked with the battery box door; after the detachable part is detached, the power battery fuse is detached along with the battery box door while the battery box door is detached, so that the power-off control of the power battery is realized, and an operator is effectively prevented from being in contact with an electrified loop when working in the box body.

Description

Technical Field

[0001] The utility model relates to a power battery box assembly, belonging to the technical field of new energy mining vehicles. Background Art

[0002] As the mining industry continues to demand more environmental protection and energy conservation, new energy mining vehicles, particularly pure electric mining vehicles, are gaining widespread adoption due to their zero emissions, low noise, and high efficiency. As a core component of pure electric mining vehicles, the safety and ease of maintenance of power batteries directly impact the overall operating efficiency and safety of the vehicles.

[0003] In the prior art, the power battery of a pure electric mining vehicle is usually enclosed in a metal box, such as Figure 1 As shown in the figure, when a vehicle requires inspection or maintenance, the operator first opens the battery compartment door and then removes the fuses on each power battery circuit. This procedure presents a significant safety hazard: without disconnecting the battery, maintenance personnel could come into direct contact with live battery circuits, potentially leading to serious consequences such as electric shock, short circuits, and equipment damage. This safety hazard is particularly prominent in high-voltage, high-power power battery systems, posing a direct threat to the operator's life. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention proposes an improved power battery box assembly. By associating the power battery fuse with the battery box door, it is possible to open the battery box door only after removing the power battery fuse during inspection or maintenance, thereby effectively preventing operators from coming into contact with live circuits when working inside the box, greatly improving the operational safety during equipment inspection and maintenance and the standardization of battery maintenance.

[0005] The utility model is implemented according to the following technical solutions:

[0006] In a first aspect, the present invention provides a power battery box assembly, comprising:

[0007] A power battery frame, the interior space of which is used to install multiple power batteries;

[0008] A battery box door is installed at the opening surface of the power battery frame, and is used to close the power battery frame and protect the multiple power batteries;

[0009] A power battery fuse is connected in a power battery circuit composed of the multiple power batteries connected in series. The power battery fuse is arranged on the outer surface of the battery box door, and the power battery fuse, the battery box door and the power battery are fixed together by detachable parts, so that the power battery fuse and the battery box door are linked. After the detachable parts are removed, when the battery box door is removed, the power battery fuse is removed along with the battery box door, thereby realizing power-off control of the power battery.

[0010] In some embodiments, the internal space of the power battery frame is divided into multiple columns of installation units, and each column of installation units has multiple installation spaces distributed longitudinally. The bottom of each installation space is provided with a power battery mounting bracket for fixing a single power battery; multiple longitudinally installed power batteries in each column of installation units are connected by a power battery wiring harness to form a power battery circuit, and the power battery circuits in multiple installation units are connected in parallel to output power for the entire vehicle; each power battery circuit is installed with a power battery fuse, and each power battery fuse corresponds to a battery box door, and each group of power battery fuses and battery box doors are operated independently.

[0011] In some embodiments, the internal space of the power battery frame is divided into three columns of installation units, and each column of installation units has three installation spaces distributed longitudinally, which can accommodate nine power batteries as a whole; the opening surface of the power battery frame is closed by three independent battery box doors arranged side by side, and a power battery fuse is installed on the outer surface of each battery box door; when any battery box door is opened, the power battery fuse on the battery box door is forcibly removed from the corresponding power battery circuit, so that the power battery circuit is in a power-off state.

[0012] In some embodiments, the battery box door is provided with a protective structure for enclosing the power battery and preventing it from being damaged due to being exposed outside the battery box door.

[0013] In some embodiments, the battery box door is provided with a groove for accommodating a power battery fuse, and a battery box inspection door is installed on the opening surface of the groove; when the battery box inspection door is closed, the groove and the power battery fuse are covered by the battery box inspection door; the battery box inspection door and the groove are used in conjunction to form the protective structure.

[0014] In some embodiments, one end of the battery box inspection door is hinged to the battery box door by a hinge, and a door lock is installed between the other end of the battery box inspection door and the battery box door, so that the battery box inspection door can be opened in a non-maintenance or inspection state.

[0015] In some embodiments, the detachable components include a plurality of bolts, which sequentially pass through the mounting holes on the power battery fuse and the mounting holes on the battery box door and are then connected to the threaded holes on the power battery.

[0016] In a second aspect, the utility model provides a new energy engineering vehicle equipped with the above-mentioned power battery box assembly.

[0017] In some embodiments, the new energy engineering vehicle comprises a new energy mining vehicle.

[0018] Beneficial effects of the utility model:

[0019] 1. Improve maintenance safety: The utility model achieves the effect of forced power off by fixing the power battery fuse in conjunction with the battery box door. The battery box door cannot be opened before the fuse is removed. The physical structure ensures that the opening operation of the battery box door must be performed when the power battery is completely powered off, effectively preventing the risk of operators contacting live circuits during maintenance, and greatly improving the safety of maintenance and repair. At the same time, the design of the power battery fuse protruding from the battery box door and placed in the groove, coupled with the double-layer protection of the battery box inspection door with an external door lock, not only provides physical protection for the power battery fuse, but also ensures that unauthorized personnel cannot touch or remove the fuse at will, thereby avoiding safety accidents caused by misoperation or accidental contact.

[0020] Second, modularity facilitates easy operation: The design utilizes a modular, multi-circuit independent protection solution. Each power battery circuit has its own independent power battery fuse and battery compartment door, ensuring independent operation. This modular design allows for inspection or maintenance of one power battery circuit without removing the power battery fuses and battery compartment doors of other power battery circuits. This greatly simplifies inspection and maintenance operations, shortens downtime, and improves the vehicle's overall operational efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are part of this utility model and are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be derived from these drawings without inventive effort.

[0022] In the attached figure:

[0023] Figure 1 It is a schematic diagram of a power battery box assembly in the prior art;

[0024] Figure 2 This is a schematic diagram of the power battery box assembly of the utility model in a working state;

[0025] Figure 3 This is a schematic diagram of the power battery box assembly of the present utility model in an inspection state;

[0026] Figure 4 This is a schematic diagram of the internal structure of the power battery box assembly of the present utility model;

[0027] Figure 5 This is a schematic diagram of the power battery fuse installation of the present utility model.

[0028] Figure identification: power battery frame 1, power battery 2, power battery fuse 3, power battery wiring harness 4, power battery circuit 5, battery box door 6, groove 7, battery box inspection door 8, door lock 9, power battery positive interface 10, power battery negative interface 11, power battery mounting bracket 12, mounting unit 13, mounting space 14, bolt 15.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0033] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown, a power battery box assembly includes a power battery frame 1, a battery box door 6, and a power battery fuse 3; the internal space of the power battery frame 1 is used to install multiple power batteries 2; the battery box door 6 is installed at the opening surface of the power battery frame 1, and is used to close the power battery frame 1 and protect the multiple power batteries 2; the power battery fuse 3 is connected to the power battery circuit 5 composed of multiple power batteries 2 in series, and the power battery fuse 3 is arranged on the outer surface of the battery box door 6, and the power battery fuse 3, the battery box door 6 and the power battery 2 are fixed together by detachable parts, so that the power battery fuse 3 and the battery box door 6 are linked; after the detachable parts are removed, when the battery box door 6 is disassembled, the power battery fuse 3 is removed along with the battery box door 6, thereby realizing power-off control of the power battery 2.

[0034] From the above, it can be seen that the utility model proposes an improved power battery box assembly. By associating the power battery fuse 3 with the battery box door 6, it is necessary to remove the power battery fuse 3 before opening the battery box door 6 during inspection or maintenance, thereby effectively preventing the operator from coming into contact with the live circuit when working in the box, greatly improving the operational safety during equipment inspection and maintenance and the standardization of battery maintenance.

[0035] The above-mentioned power battery frame is further described below.

[0036] Continue to refer to Figure 4 As shown, the internal space of the power battery frame 1 is divided into multiple columns of mounting units 13, and each column of mounting units 13 is longitudinally distributed with multiple mounting spaces 14. The bottom of each mounting space 14 is provided with a power battery mounting bracket 12 for fixing a single power battery 2; multiple longitudinally mounted power batteries 2 in each column of mounting units 13 are connected by a power battery harness 4 (that is, the power battery harness 4 is connected to the corresponding power battery positive interface 10 and power battery negative interface 11 of each power battery 2), forming a power battery circuit 5. The power battery circuits 5 in multiple mounting units 13 are connected in parallel to output power for the entire vehicle; each power battery circuit 5 is installed with a power battery fuse 3, and each power battery fuse 3 corresponds to a battery box door 6, and each group of power battery fuses 3 and battery box doors 6 are independently operated.

[0037] A preferred embodiment of the power battery frame is given below:

[0038] Continue to refer to Figure 4As shown, the internal space of the power battery frame 1 is divided into three columns of mounting units 13, and each column of mounting units 13 has three mounting spaces 14 distributed longitudinally, which can accommodate nine power batteries 2 as a whole; the opening surface of the power battery frame 1 is closed by three independent battery box doors 6 arranged side by side, and a power battery fuse 3 is installed on the outer surface of each battery box door 6; when any battery box door 6 is opened, the power battery fuse 3 on the battery box door 6 is forcibly removed from the corresponding power battery circuit 5, so that the power battery circuit 5 is in a power-off state, and no current passes through the power battery wiring harness 4.

[0039] It should be noted that the internal space of the power battery frame 1 is not limited to the above-mentioned three columns of installation units 13, and can also be designed into four or five columns of installation units according to actual needs; the longitudinal distribution of the installation units 13 in each column is not limited to the above-mentioned three installation spaces 14, and can also be designed into four or five installation spaces according to actual needs.

[0040] Further solutions, such as Figure 2 As shown, the battery box door 6 is provided with a protective structure for enclosing the power battery fuse 3 and preventing it from being damaged due to being exposed outside the battery box door 6.

[0041] The preferred solution is Figure 2 、 Figure 3 、 Figure 5 As shown, the battery box door 6 is provided with a groove 7 for accommodating the power battery fuse 3, and a battery box inspection door 8 is installed on the opening surface of the groove 7; when the battery box inspection door 8 is closed, the groove 7 and the power battery fuse 3 are covered by the battery box inspection door 8; the battery box inspection door 8 and the groove 7 are used together to form a protective structure.

[0042] Further solutions, such as Figure 2 、 Figure 3 、 Figure 5 As shown, one end of the battery box inspection door 8 is hinged to the battery box door 6 through a hinge, and a door lock 9 is installed between the other end of the battery box inspection door 8 and the battery box door 6, so that the battery box inspection door 8 can be opened when not in maintenance or inspection status, ensuring the safety of the power battery fuse 3 in the working state.

[0043] The above-mentioned detachable components are further described below.

[0044] like Figure 5As shown, the detachable parts include a plurality of bolts 15, which pass through the mounting holes on the power battery fuse 3 and the mounting holes in the groove 7 on the battery box door 6 in sequence and are connected to the threaded holes on the power battery 2; this structure can make the power battery fuse 3 and the battery box door 6 linked together, so that when the battery box door 7 needs to be opened for inspection, all the bolts 15 used to fix the power battery fuse 3 must be removed first, so that the power battery fuse 3 is removed from the power battery circuit 5, and at the same time, the power-off processing of the power battery circuit 5 and the power battery wiring harness 4 is completed, thereby preventing the operator from contacting the power battery circuit 5 in a charged state.

[0045] In summary, the present invention achieves the following functions and effects:

[0046] The power battery fuse is designed to protrude from the battery compartment door and is housed in a recessed, lockable groove. This effectively protects the exposed portion of the fuse, preventing damage from external forces or misoperation during maintenance. It also ensures that the fuse cannot be directly accessed without authorization, effectively preventing unauthorized or misoperation. Furthermore, the power battery fuse is secured with bolts that pass through the battery compartment door, forcing the fuse to connect to the door.

[0047] When removing the battery compartment door, the bolts must be removed simultaneously to ensure the power battery fuse is forcibly removed, effectively disconnecting the power battery. This design eliminates the safety hazard of traditional "open the door first, then remove the fuse" operation. By physically restraining the battery compartment door, it ensures that the battery compartment door can only be opened when the power battery is disconnected. This ensures that each battery compartment door opening operation is accompanied by the removal of the power battery fuse and the disconnection of the power battery, ensuring operational safety even in emergency situations. This design eliminates the need for complex electrical interlocks and sensor controls, fundamentally reducing the risk of misoperation and the possibility of electrical failure.

[0048] The power battery system designed in this utility model consists of three independent power battery circuits, each composed of three power batteries connected in series, with a total of three independent power battery fuses and battery compartment doors. Each power battery fuse and battery compartment door operates independently and does not interfere with each other. This multi-circuit independent design allows for inspection or maintenance of one circuit without removing the power battery fuses and battery compartment doors of other circuits, effectively improving the convenience and safety of inspection.

[0049] The new energy engineering vehicle provided by the present invention is described below. The new energy engineering vehicle described below and the power battery box assembly described above can be referenced to each other.

[0050] The utility model provides a new energy engineering vehicle which may include a power battery box assembly as described in any one of the above embodiments.

[0051] The beneficial effects achieved by the new energy engineering vehicle provided by the present invention are consistent with the beneficial effects achieved by the power battery box assembly provided by the present invention, and will not be repeated here.

[0052] It should be noted that the above-mentioned new energy engineering vehicles can be new energy mining vehicles.

[0053] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0054] Furthermore, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are also intended to fall within the scope of protection of the present invention and form different embodiments. For example, in the above embodiments, those skilled in the art will be able to use them in combination based on the known technical solutions and the technical problems to be solved by this application.

[0055] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A power battery box assembly, characterized in that: include: A power battery frame, the interior space of which is used to install multiple power batteries; A battery box door is installed at the opening surface of the power battery frame, and is used to close the power battery frame and protect the multiple power batteries; A power battery fuse is connected in a power battery circuit composed of the multiple power batteries connected in series. The power battery fuse is arranged on the outer surface of the battery box door, and the power battery fuse, the battery box door and the power battery are fixed together by detachable parts, so that the power battery fuse and the battery box door are linked. After the detachable parts are removed, when the battery box door is removed, the power battery fuse is removed along with the battery box door, thereby realizing power-off control of the power battery.

2. The power battery box assembly according to claim 1, characterized in that: The internal space of the power battery frame is divided into multiple columns of mounting units. Each column of mounting units has multiple mounting spaces distributed longitudinally. A power battery mounting bracket for fixing a single power battery is provided at the bottom of each mounting space. Multiple longitudinally mounted power batteries in each column of installation units are connected by a power battery harness to form a power battery circuit. The power battery circuits in multiple installation units are connected in parallel to output power for the entire vehicle. Each power battery circuit is equipped with a power battery fuse, and each power battery fuse corresponds to a battery box door. Each group of power battery fuses and battery box doors are operated independently.

3. The power battery box assembly according to claim 2, characterized in that: The internal space of the power battery frame is divided into three rows of mounting units, each row of mounting units has three mounting spaces distributed longitudinally, and the whole can accommodate nine power batteries; The opening surface of the power battery frame is closed by three independent battery box doors arranged side by side, and a power battery fuse is installed on the outer surface of each battery box door; when any battery box door is opened, the power battery fuse on the battery box door is forcibly removed from the corresponding power battery circuit, so that the power battery circuit is in a power-off state.

4. The power battery box assembly according to claim 1, characterized in that: The battery box door is provided with a protective structure for enclosing the power battery insurance and preventing it from being damaged due to being exposed outside the battery box door.

5. The power battery box assembly according to claim 4, characterized in that: The battery box door is provided with a groove for accommodating the power battery fuse, and a battery box inspection door is installed on the opening surface of the groove; when the battery box inspection door is closed, the groove and the power battery fuse are covered by the battery box inspection door; the battery box inspection door and the groove are used in conjunction to form the protective structure.

6. The power battery box assembly according to claim 5, characterized in that: One end of the battery box inspection door is hinged to the battery box door through a hinge, and a door lock is installed between the other end of the battery box inspection door and the battery box door, so that the battery box inspection door can be opened in a non-maintenance or inspection state.

7. The power battery box assembly according to claim 1, characterized in that: The detachable components include a plurality of bolts, which sequentially pass through the mounting holes on the power battery fuse and the mounting holes on the battery box door and are then connected to the threaded holes on the power battery.

8. A new energy engineering vehicle, characterized by: A power battery box assembly according to any one of claims 1 to 7 is installed.

9. The new energy engineering vehicle according to claim 8, characterized in that: The new energy engineering vehicles include new energy mining vehicles.

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