Compact mine card battery pack and electric mine card

Abstract

The utility model belongs to the technical field of battery packs, and discloses a compact mine card battery pack and an electric mine card. The compact mine card battery pack comprises a battery frame, a battery module, a high-voltage box and a battery temperature adjusting mechanism, the battery frame is provided with multiple layers of placing positions in the vertical direction, each layer of placing positions is provided with a plurality of placing positions in the first horizontal direction, at least one placing position is a first placing position, at least one placing position is a second placing position, and the battery module is arranged on the battery frame. The rest placing positions are third placing positions; one battery module is arranged on each third placing position; the high-voltage box is arranged at the first placement position, and the battery module is electrically connected with the high-voltage box through a wire; and the battery temperature adjusting mechanism is arranged at the second placement position, and the battery temperature adjusting mechanism is used for adjusting the temperature of the battery module. According to the compact type mine card battery pack disclosed by the utility model, the plurality of battery modules, the high-voltage box and the battery temperature adjusting mechanism are all integrated in the battery frame, so that the capacity of the battery pack is improved at the same height, and the attendance rate of a mine card is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a compact mining truck battery pack and an electric mining truck. Background Technology

[0002] A battery pack is an energy module composed of multiple battery modules connected in series and parallel, and integrating a battery management system (BMS), thermal management system, structural components, etc., to provide stable and controllable electrical energy output. For example, the battery pack of an electric mining truck is usually mounted on the chassis and located behind the cab.

[0003] Due to the unique environment of mines, electric mining trucks are equipped with a visor extending from the front of the cargo box to the top of the cab to prevent falling ore, gravel, and other debris from directly impacting the cab and battery pack, thus protecting them. Furthermore, charging is inconvenient at mines, so electric mining trucks mostly rely on direct battery swapping for refueling.

[0004] Because the height between the brim and the chassis is a fixed value, there is an upper limit to the height of the battery pack located between the base and the brim on the electric mining truck. In other words, the maximum height of the battery pack is also a fixed value. However, the battery pack is composed of multiple battery modules connected in parallel or series, and each battery module is packaged into a whole. The overall size of each battery module cannot be compressed. Furthermore, the bottom or top of the battery pack must be equipped with a high-voltage box and a battery temperature regulation mechanism, which will occupy a certain amount of height space. In addition, when swapping batteries, space must be reserved at the top of the battery pack for the lifting tool to extend into and for the battery pack to move upwards, further compressing the height space reserved for the battery pack.

[0005] Therefore, the only way to reduce the height of the battery pack is to decrease its capacity. This results in smaller battery pack capacities for current electric mining trucks, requiring frequent battery swaps and severely impacting their uptime. Utility Model Content

[0006] The purpose of this invention is to provide a compact mining truck battery pack and an electric mining truck, so as to optimize the structure of the battery pack under limited height conditions, thereby maximizing the capacity of the battery pack of the electric mining truck and improving the uptime of the electric mining truck.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] Compact mining truck battery pack, including:

[0009] The battery frame has multiple placement positions arranged vertically, and each layer has multiple placement positions arranged horizontally. At least one of the placement positions is a first placement position, at least one of the placement positions adjacent to the first placement position is an empty placement position, at least one of the placement positions is a second placement position, and the remaining placement positions are third placement positions.

[0010] One battery module is provided in each of the third placement positions;

[0011] A high-voltage box is disposed at the first placement position, and the battery module is electrically connected to the high-voltage box via wires; and...

[0012] A battery temperature regulation mechanism is disposed at the second placement position, and the battery temperature regulation mechanism is used to regulate the temperature of the battery module.

[0013] Preferably, one of the placement positions at the top layer is the first placement position.

[0014] Preferably, the bottom of the high-voltage box is provided with a connector for connecting to the wire, and the empty placement position is located at the bottom of the first placement.

[0015] Preferably, the two placement positions at the top layer are the second placement positions, and each of the second placement positions is provided with a battery temperature regulation mechanism.

[0016] Preferably, both of the battery temperature regulation mechanisms are liquid cooling mechanisms; or,

[0017] Both of the battery temperature regulation mechanisms are heating mechanisms; or,

[0018] The two battery temperature regulation mechanisms are a liquid cooling mechanism and a heating mechanism, respectively.

[0019] Preferably, along the first horizontal direction, the first placement position is located at the middle position of the battery frame, and the two second placement positions are located at the edge positions of the battery frame.

[0020] Preferably, the battery frame includes:

[0021] bottom frame;

[0022] A top frame, disposed at the top of the bottom frame; and,

[0023] A support frame is disposed between the bottom frame and the top frame, and the support frame has multiple layers of the placement positions.

[0024] Preferably, the support frame is provided with a surrounding panel, which at least covers the area between the bottom frame and the top frame.

[0025] Preferably, the enclosure has mesh openings in the area corresponding to the second placement position.

[0026] An electric mining truck includes a vehicle body and a compact mining truck battery pack, the compact mining truck battery pack being located on the vehicle body.

[0027] The beneficial effects of this utility model are:

[0028] This utility model discloses a compact mining truck battery pack with multiple placement positions arranged on the battery frame. The first placement position holds the high voltage box, the second placement position holds the battery temperature regulation mechanism, and the third placement position holds the battery module. This integrates multiple battery modules, the high voltage box, and the battery temperature regulation mechanism inside the battery frame. Compared with placing the high voltage box and the battery temperature regulation mechanism separately at the top and bottom of the battery pack, the vertical height of the battery pack is reduced, thereby increasing the capacity of the battery pack at the same height and improving the uptime of mining trucks. Attached Figure Description

[0029] Figure 1 This is a side view of the electric mining truck of this utility model;

[0030] Figure 2 This is a structural schematic diagram of the compact mining truck battery pack of this utility model;

[0031] Figure 3 This is a layout diagram of the placement of the compact mining truck battery pack of this utility model;

[0032] Figure 4 This is a layout diagram of the battery module, high-voltage box, and battery temperature regulation mechanism of the compact mining truck battery pack of this utility model.

[0033] In the picture:

[0034] 100. Vehicle body; 101. Chassis; 102. Cargo box; 1021. Cap brim; 103. Cab; 1. Battery frame; 11. Bottom frame; 111. Connecting seat; 12. Top frame; 13. Support frame; 131. Side panel; 1311. Inspection door; 132. Sealing plate; 2. First placement position; 3. Empty placement position; 4. Second placement position; 5. Third placement position; 61. Battery module; 62. High voltage box; 63. Battery temperature regulation mechanism. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] The following reference Figures 1 to 4 The present invention describes the compact mining truck battery pack and the electric mining truck provided by this utility model.

[0040] Reference Figure 1 The electric mining truck includes a vehicle body 100 and a compact mining truck battery pack located on the vehicle body 100. Specifically, the vehicle body 100 includes a chassis 101, a cargo box 102, and a cab 103. The cargo box 102 and the cab 103 are both connected to the chassis 101. The front end of the cargo box 102 is connected to a visor 1021 extending above the cab 103. The compact mining truck battery pack is connected to the chassis 101 and located between the cab 103 and the cargo box 102.

[0041] In existing technology, the height between the visor and the chassis is fixed. Electric mining truck battery packs typically consist of four sets of battery modules connected in parallel or series, arranged along the width of the vehicle body. Each set includes four vertically stacked and connected battery modules, all housed in a single enclosure, resulting in a total of sixteen battery modules. The height of each module is H. If the height of the reserved battery temperature regulation mechanism is similar to the height of the battery modules, the overall height of the battery pack is at least 5H. This results in a relatively large battery pack height. Currently, the only way to reduce the height is to decrease the capacity of each battery module, i.e., using battery modules with a height less than H, to control the overall battery pack height to around 4H. This leads to frequent battery swapping for current electric mining trucks, severely impacting their uptime.

[0042] To address the aforementioned issues, this embodiment provides a compact mining truck battery pack. This compact battery pack optimizes the battery pack's structure, thereby increasing its capacity within a fixed height space, reducing the number of charging cycles for electric mining trucks, and thus improving their uptime. The specific structure of this compact mining truck battery pack is described below in this embodiment.

[0043] Reference Figures 2 to 4 The compact mining truck battery pack includes a battery frame 1, battery modules 61, a high-voltage box 62, and a battery temperature regulation mechanism 63. Multiple battery modules 61 are mounted on the battery frame 1, and the multiple battery modules 61 are connected in series and / or in parallel. The high-voltage box 62 and the battery temperature regulation mechanism 63 are also mounted on the battery frame 1, and the battery modules 61 are electrically connected to the high-voltage box 62 via wires.

[0044] Specifically, the battery frame 1 has multiple layers of placement positions along the vertical direction, and each layer has multiple placement positions along the first horizontal direction. In this embodiment, there are four layers of placement positions, and each layer has five placement positions along the first horizontal direction, thus providing twenty placement positions on the battery frame 1. At least one placement position is a first placement position 2 (in this embodiment, one is used as an example), where the high-voltage box 62 is located. At least one adjacent placement position 3 is an empty placement position. At least one placement position is a second placement position 4 (in this embodiment, two are used as an example), where the battery temperature regulating mechanism 63 is located. The battery temperature regulating mechanism 63 is used to regulate the temperature of the battery module 61. The remaining placement positions are all third placement positions 5, meaning there are sixteen third placement positions 5, and one battery module 61 is placed in each of the three third placement positions 5.

[0045] As described above, by arranging multiple placement positions on the battery frame 1, the multiple battery modules 61 in the original battery pack are disassembled and rearranged, and the high voltage box 62 and the battery temperature regulation mechanism 63 are integrated into the inside of the battery frame 1. Finally, the overall height of the battery pack is controlled at about 4H, so that the capacity of the battery module 61 does not need to be reduced. The capacity of the compact mining truck battery pack can be increased at the same height, thereby improving the mining truck's uptime.

[0046] It is worth noting that the size of the third placement position 5 in this embodiment can be set with reference to the battery module 61 of the market head, so as to be compatible with various imitation head battery modules 61, thereby improving the compatibility of the compact mining truck battery pack.

[0047] Optionally, in some other embodiments, the number of layers and the quantity of each layer of the placement position can be adjusted according to the actual situation. That is, the placement position can also be set to three, five or more layers, and the quantity of each layer can also be three, four or more.

[0048] Furthermore, the battery frame 1 includes a bottom frame 11, a top frame 12, and a support frame 13. A connecting seat 111 is connected to the bottom frame 11 for docking with the vehicle body 100. The top frame 12 is located on top of the bottom frame 11 for docking with the battery swapping equipment. The support frame 13 is located between the bottom frame 11 and the top frame 12. In this embodiment, the bottom frame 11, top frame 12, and support frame 13 are welded together. Of course, in other embodiments, the connection between the bottom frame 11, top frame 12, and support frame 13 can also be designed to be detachable.

[0049] For example, in this embodiment, the support frame 13 is welded together from several columns, several crossbeams, and several longitudinal beams to form a stable frame structure, and multiple placement positions are formed on the support frame 13. Several diagonal reinforcing beams are also welded to both ends of the support frame 13.

[0050] Furthermore, surrounding panels 131 are connected around the support frame 13, covering the open area below the top frame 12, thereby enclosing the bottom frame 11 and the perimeter of the support frame 13. A sealing plate 132 is also connected to the top of the support frame 13, covering the opening at the top of the support frame 13, thus sealing the top of the support frame 13. Thus, the surrounding panels 131 and the sealing plate 132 protect the components inside the support frame 13, preventing falling objects from the mine from directly impacting the battery module 61 and preventing external contaminants from entering the interior of the support frame 13.

[0051] As an example, one of the top placement positions is the first placement position 2, where the high-voltage box 62, which is lighter than the battery module 61, is placed at the top of the support frame 13. This lowers the center of gravity of the compact mining truck battery pack, improves the stability of the vehicle body 100, and allows for maintenance of the high-voltage box 62 after the sealing plate 132 is removed. A window is provided on the enclosure plate 131 at the position corresponding to the high-voltage box 62, and an openable maintenance door 1311 is hinged to the window.

[0052] In addition, the empty placement position 3 is located at the bottom of the first placement position 2, and the bottom of the high voltage box 62 is provided with a connector for connecting wires, so that the battery module 61 below the high voltage box 62 can be wired to the high voltage box 62 through the empty placement position 3, minimizing bending of the high voltage wires and improving the service life of the wires.

[0053] Furthermore, two of the top-level placement positions are designated as second placement positions 4. Each second placement position 4 is equipped with a battery temperature regulation mechanism 63. Placing the battery temperature regulation mechanism 63 at the top of the support frame 13 improves the stability of the vehicle body 100 during driving, lowers the center of gravity of the compact mining truck battery pack, and facilitates the maintenance of the battery temperature regulation mechanism 63.

[0054] Preferably, along the first horizontal direction, the two first placement positions 2 are located in the middle of the battery frame 1, and the two second placement positions 4 are located at the edges of the battery frame 1, thereby making the weight distribution of the battery frame 1 more uniform and improving the driving stability of the vehicle body 100. At the same time, the battery temperature regulation mechanism 63 is placed in the corner of the battery frame 1 to facilitate heat exchange with the outside environment. In order to facilitate heat exchange between the battery temperature regulation mechanism 63 and the outside environment, mesh holes are opened in the area corresponding to each second placement position 4 on the enclosure plate 131.

[0055] Specifically, in this embodiment, the battery module 61 is a module with a liquid cooling channel in the prior art, and the two battery temperature regulating mechanisms 63 are a liquid cooling mechanism and a heating mechanism, respectively. The liquid cooling mechanism can be any mechanism in the prior art capable of cooling liquids. The liquid outlet of the liquid cooling mechanism is connected to the liquid inlet of the liquid cooling channel, and the liquid outlet of the liquid cooling channel is connected to the liquid inlet of the liquid cooling mechanism, thereby cooling the battery module 61 by circulating liquid between the liquid cooling mechanism and the battery module 61. The heating mechanism can be any mechanism in the prior art capable of cooling liquids. The connection method between the heating mechanism and the battery module 61 is the same as the connection method between the liquid cooling mechanism and the battery module 61. Finally, the battery module 61 is heated by circulating liquid between the heating mechanism and the battery module 61.

[0056] Therefore, the battery module 61 can be cooled down in summer or when the operating environment temperature is high, while it can be heated in winter or when the operating environment temperature is low, so that the battery module 61 is always at the optimal operating temperature.

[0057] Optionally, in some other embodiments, both battery temperature regulating mechanisms 63 are either liquid cooling mechanisms or both battery temperature regulating mechanisms 63 are heating mechanisms, which can be selected according to the actual working environment.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A compact mining truck battery pack, characterized in that, include: The battery frame (1) has multiple placement positions arranged in the vertical direction, and each layer of placement positions has multiple placement positions arranged in the first horizontal direction. Among them, at least one of the placement positions is a first placement position (2), at least one of the placement positions adjacent to the first placement position (2) is an empty placement position (3), at least one of the placement positions is a second placement position (4), and the remaining placement positions are all third placement positions (5). A battery module (61) is provided on each of the third placement positions (5); A high-voltage box (62) is disposed at the first placement position (2), and the battery module (61) is electrically connected to the high-voltage box (62) through a wire; as well as, A battery temperature regulating mechanism (63) is provided at the second placement position (4), and the battery temperature regulating mechanism (63) is used to regulate the temperature of the battery module (61).

2. The compact mining truck battery pack according to claim 1, characterized in that, One of the placement positions at the top level is the first placement position (2).

3. The compact mining truck battery pack according to claim 2, characterized in that, The bottom of the high-voltage box (62) is provided with a connector for connecting to the wire, and the empty placement position (3) is located at the bottom of the first placement.

4. The compact mining truck battery pack according to claim 2, characterized in that, Two of the topmost placement positions are the second placement positions (4), and each of the second placement positions (4) is provided with a battery temperature regulation mechanism (63).

5. The compact mining truck battery pack according to claim 4, characterized in that, Both of the battery temperature regulation mechanisms (63) are liquid cooling mechanisms; or, Both of the battery temperature regulating mechanisms (63) are heating mechanisms; or, The two battery temperature regulation mechanisms (63) are a liquid cooling mechanism and a heating mechanism, respectively.

6. The compact mining truck battery pack according to claim 4, characterized in that, Along the first horizontal direction, the first placement position (2) is located in the middle of the battery frame (1), and the two second placement positions (4) are located at the edge of the battery frame (1).

7. The compact mining truck battery pack according to claim 1, characterized in that, The battery frame (1) includes: Bottom frame (11); A top frame (12) is disposed on top of the bottom frame (11); and, A support frame (13) is disposed between the bottom frame (11) and the top frame (12), and the support frame (13) has multiple placement positions.

8. The compact mining truck battery pack according to claim 7, characterized in that, The support frame (13) is surrounded by a panel (131), which covers at least the area between the bottom frame (11) and the top frame (12).

9. The compact mining truck battery pack according to claim 8, characterized in that, The enclosure (131) has mesh openings in the area corresponding to the second placement position (4).

10. An electric mining truck, comprising a vehicle body (100), characterized in that, It also includes a compact mining truck battery pack as described in any one of claims 1-9, the compact mining truck battery pack being located on the vehicle body (100).

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