Battery liquid cooling box and battery liquid cooling device for mining dump truck

Abstract

The utility model discloses a mining dump truck battery liquid cooling box and a battery liquid cooling device, the mining dump truck battery liquid cooling box comprises an upper cover, a second-layer module, a second-layer liquid cooling plate, a second-layer mounting frame, a first-layer module, a first-layer liquid cooling plate and a lower box body frame, the upper cover is located above the lower box body frame, the second-layer mounting frame is located between the upper cover and the lower box body frame, and the first-layer module is located above the lower box body frame. The second-layer liquid cooling plate and the first-layer liquid cooling plate are located above and below the second-layer installation frame respectively, and the second-layer module and the first-layer module are placed on the second-layer liquid cooling plate and the first-layer liquid cooling plate respectively. According to the utility model, a double-layer liquid cooling plate and double-layer module structure scheme is adopted, so that the battery capacity of the battery box is greatly improved, the requirement of a large-tonnage mining dump truck on electric quantity is met, the thermal stability of the battery in the use process is also ensured, and the test efficiency is greatly improved by matching with the existing CAE simulation technology analysis and box body vibration test. Therefore, the battery box meets the strength requirement under the vibration excitation of the whole vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of mining dump truck battery technology, and in particular relates to a mining dump truck battery liquid cooling box and battery liquid cooling device. Background Technology

[0002] New energy mining trucks (mining dump trucks) typically use high-capacity lithium batteries or hydrogen fuel cells as their power source to replace traditional diesel engines, achieving energy conservation and emission reduction. Existing battery boxes for mining dump trucks are mostly supplied for small and medium-sized mining dump trucks, and their battery box structures are mostly a combination of a single-layer water-cooling system and a single-layer battery module.

[0003] With the expansion of large-scale open-pit mines with a capacity of over 10 million tons and the increasing demands for environmental protection, the demand for large and ultra-large tonnage mining dump trucks (over 100 tons) is constantly increasing, and active investment is being made in electrification, intelligentization, and automation. The development of mining dump trucks is influenced by multiple factors, and the future trend is towards larger tonnage, electrification / hybridization, and intelligentization. Existing battery cooling solutions are no longer sufficient to meet the needs of large-tonnage mining dump trucks. Therefore, this utility model provides a liquid-cooled battery tank and battery cooling device for mining dump trucks, which is of great significance in addressing these issues. Utility Model Content

[0004] This utility model provides a liquid cooling box and liquid cooling device for a mining dump truck battery. By adopting a large-capacity battery cell and a double-layer liquid cooling plate + double-layer module structure, the battery capacity of the battery box is greatly improved, solving the power demand of large-tonnage mining dump trucks and ensuring the thermal stability of the battery during use. Combined with existing CAE simulation technology analysis and box vibration test, the battery box meets the strength requirements under the vibration excitation of the whole vehicle. In summary, it solves the problems in the background technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a battery liquid cooling box and battery liquid cooling device for a mining dump truck, comprising an upper cover, a second-layer module, a second-layer liquid cooling plate, a second-layer mounting frame, a first-layer module, a first-layer liquid cooling plate, and a lower housing frame. The upper cover is located above the lower housing frame, and the second-layer mounting frame is located between the upper cover and the lower housing frame. The second-layer liquid cooling plate and the first-layer liquid cooling plate are located above and below the second-layer mounting frame, respectively. The second-layer module and the first-layer module are placed on the second-layer liquid cooling plate and the first-layer liquid cooling plate, respectively. End plates are provided on both sides of the second-layer module and the first-layer module. Several bolts are threaded onto the end plates. The second-layer module and the first-layer module are connected to the second-layer mounting frame and the lower housing frame, respectively, by bolts.

[0007] Furthermore, several bolt holes are provided at the edges of both the second-layer liquid cooling plate and the first-layer liquid cooling plate, and bolts are threaded into the bolt holes. The second-layer liquid cooling plate and the first-layer liquid cooling plate are respectively connected to the second-layer mounting frame and the lower housing frame by bolts.

[0008] Furthermore, both the second-layer liquid cooling plate and the first-layer liquid cooling plate have hollow interiors, and both the second-layer liquid cooling plate and the first-layer liquid cooling plate are provided with water inlets and outlets. The second-layer liquid cooling plate and the first-layer liquid cooling plate are connected in series by liquid cooling pipes with quick-connect plugs.

[0009] Furthermore, the inner walls of the two-layer liquid cooling plate and the one-layer liquid cooling plate are fixedly connected with several flow guide blocks. A flow guide channel is formed between each two adjacent flow guide blocks. The flow guide channel is in the form of multiple S-shaped segments and is connected to the water inlet and the water outlet respectively. Several flow guide grooves are provided in the flow guide channel. A gap is left between each two adjacent flow guide grooves, and the spacing is equal.

[0010] Furthermore, thermally conductive gel is filled between the two-layer module and the two-layer liquid cooling plate, and between the one-layer module and the one-layer liquid cooling plate.

[0011] The present invention has the following advantages over the prior art:

[0012] (1) When the battery liquid cooling box and battery liquid cooling device of the mining dump truck in this utility model are used, a large-capacity battery cell is adopted, combined with a double-layer liquid cooling plate + double-layer module structure, which greatly improves the battery capacity of the battery box, solves the power demand of large-tonnage mining dump trucks, and also ensures the thermal stability of the battery during use.

[0013] (2) When the battery liquid cooling box and battery liquid cooling device of the mining dump truck in this utility model are used, in conjunction with the existing CAE simulation technology analysis and box vibration test, the battery box meets the strength requirements under the vibration excitation of the whole vehicle.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0016] Figure 1 This is a schematic diagram of the structure of a battery liquid cooling box and battery liquid cooling device for a mining dump truck according to the present invention;

[0017] Figure 2 This is an assembly diagram of a battery liquid cooling box and battery liquid cooling device for a mining dump truck according to the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of a two-layer liquid cooling plate or a single-layer liquid cooling plate in this utility model;

[0019] Figure 4 This is a cross-sectional view of the two-layer liquid cooling plate or the single-layer liquid cooling plate in this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Top cover; 2. Second-layer module; 3. Second-layer liquid cooling plate; 4. Second-layer mounting frame; 5. First-layer module; 6. First-layer liquid cooling plate; 7. Lower housing frame; 8. Water inlet; 9. Water outlet; 10. Flow guide block; 11. Flow guide channel; 12. Flow guide groove. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Please see Figure 1-4As shown, this utility model discloses a battery liquid cooling box and battery liquid cooling device for a mining dump truck, including an upper cover 1, a second-layer module 2, a second-layer liquid cooling plate 3, a second-layer mounting frame 4, a first-layer module 5, a first-layer liquid cooling plate 6, and a lower box frame 7. The upper cover 1 is located above the lower box frame 7, the second-layer mounting frame 4 is located between the upper cover 1 and the lower box frame 7, the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 are located above and below the second-layer mounting frame 4, respectively, and the second-layer module 2 and the first-layer module 5 are placed on the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6, respectively. Both sides of module 2 and the first-layer module 5 are provided with end plates, and several bolts are threaded onto the end plates. The second-layer module 2 and the first-layer module 5 are connected to the second-layer mounting frame 4 and the lower box frame 7 respectively by bolts. The second-layer module 2 and the first-layer module 5 are both publicly available technologies. Their main structures include battery cells, battery management system, electrical connection system, etc. The energy of the second-layer module 2 and the first-layer module 5 is about twice that of the parameters of the existing battery box, which solves the power demand of large-tonnage mining dump trucks and also ensures the thermal stability of the battery during use.

[0025] The second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 each have several bolt holes at their edges, with bolts threaded into the bolt holes. The second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 are connected to the second-layer mounting frame 4 and the lower housing frame 7 respectively by bolts. The combination of the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 with the second-layer mounting frame 4 and the lower housing frame 7 can improve the overall strength characteristics of the battery box. Replacing the original reinforcing plate of the battery box structure with the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 can also reduce the weight of the battery box. Under the computer simulation analysis of CAE, the weak points of the battery box structure are optimized, thereby ensuring that the battery box will not fail due to vibration in actual use.

[0026] The interior of the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 are both hollow structures, and both the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 are provided with water inlet 8 and water outlet 9. The second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 are connected in series by liquid cooling pipes with quick-connect plugs. Coolant can be introduced from the water inlet 8 on the first-layer liquid cooling plate 6 through the liquid cooling pipes, flow to the second-layer liquid cooling plate 3, and then flow out from the water outlet 9 on the second-layer liquid cooling plate 3, so as to achieve simultaneous cooling of the second-layer module 2 and the first-layer module 5.

[0027] The inner walls of the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 are fixedly connected with several flow guide blocks 10. A flow guide channel 11 is formed between each two adjacent flow guide blocks 10. The flow guide channel 11 is multi-segment S-shaped and is connected to the inlet 8 and the outlet 9 respectively. Several flow guide grooves 12 are provided in the flow guide channel 11. A gap is left between each two adjacent flow guide grooves 12 and the spacing is equal. When the coolant enters the inner cavity of the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6, it can be diverted through each flow guide groove 12 and the coolant can flow along the flow guide channel 11. The multi-segment S-shaped flow guide channel 11 can slow down the flow rate of the coolant so as to prolong the contact time between the coolant and the inner cavity of the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6. At the same time, the flow guide grooves 12 are optimized through simulation analysis and calculation to ensure that the coolant can fully contact the inner cavity of the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6, so as to achieve the best cooling effect of the battery.

[0028] Thermally conductive gel is used to fill the gaps between the second-layer module 2 and the second-layer liquid cooling plate 3, and between the first-layer module 5 and the first-layer liquid cooling plate 6. The thermally conductive gel can fill the gaps between the second-layer module 2 and the second-layer liquid cooling plate 3, and between the first-layer module 5 and the first-layer liquid cooling plate 6. Furthermore, due to the high thermal conductivity of the thermally conductive gel, it can effectively reduce the thermal resistance between the second-layer module 2 and the second-layer liquid cooling plate 3, and between the first-layer module 5 and the first-layer liquid cooling plate 6, thereby making heat conduction smoother.

[0029] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0030] All standard parts used in the application documents can be purchased from the market. All components in this application documents can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

[0031] The working principle of this utility model is as follows:

[0032] In use, this utility model allows the second-layer module 2 and the first-layer module 5 to be connected to the second-layer mounting frame 4 and the lower housing frame 7 respectively via bolts. Similarly, the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6 are also connected to the second-layer mounting frame 4 and the lower housing frame 7 respectively via bolts. The energy output of the second-layer module 2 and the first-layer module 5 is approximately twice that of existing battery boxes, solving the power requirements of large-tonnage mining dump trucks and ensuring thermal stability during battery use. When the second-layer module 2 and the first-layer module 5 overheat due to prolonged use, coolant can be introduced through the inlet 8 on the first-layer liquid cooling plate 6 via liquid cooling pipes, flowing to the second-layer liquid cooling plate 3 and then out through the outlet 9 on the second-layer liquid cooling plate 3, thus simultaneously cooling the second-layer module 2 and the first-layer module 5. After the coolant enters the inner cavity of the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6, it can be cooled through various guide channels 12. The coolant is diverted and flows along the guide channel 11. The multiple S-shaped guide channels 11 slow down the flow rate of the coolant, thereby extending the contact time between the coolant and the inner cavities of the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6. At the same time, the guide groove 12, through simulation analysis and calculation and optimization, ensures that the coolant can fully contact the inner cavities of the second-layer liquid cooling plate 3 and the first-layer liquid cooling plate 6, so that the battery cooling effect is optimal. Thermal conductive gel is filled between the second-layer module 2 and the second-layer liquid cooling plate 3, and between the first-layer module 5 and the first-layer liquid cooling plate 6. The thermal conductive gel can fill the gaps between the second-layer module 2 and the second-layer liquid cooling plate 3, and between the first-layer module 5 and the first-layer liquid cooling plate 6. Furthermore, due to the high thermal conductivity of the thermal conductive gel, the thermal resistance between the second-layer module 2 and the second-layer liquid cooling plate 3, and between the first-layer module 5 and the first-layer liquid cooling plate 6 can be effectively reduced, thereby making heat conduction smoother.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A battery liquid cooling box and battery liquid cooling device for a mine dump truck, characterized in that, The utility model provides a two -tier liquid cooling board and one -tier liquid cooling board are connected through the liquid cooling pipe with quick -plug, and the two -tier module and one -tier module are placed on the two -tier liquid cooling board and one -tier liquid cooling board respectively, and the two -tier module and one -tier module are connected with the two -tier installation frame and the lower box frame through the bolt, and the two -tier module and one -tier module are filled with the heat -conducting gel between the two -tier liquid cooling board and one -tier liquid cooling board.

2. The battery liquid cooling box and battery liquid cooling device of a mine dump truck according to claim 1, characterized in that, The utility model provides a two -tier liquid cooling board and one -tier liquid cooling board are connected through the liquid cooling pipe with quick -plug, and the two -tier module and one -tier module are placed on the two -tier liquid cooling board and one -tier liquid cooling board respectively, and the two -tier module and one -tier module are connected with the two -tier installation frame and the lower box frame through the bolt, and the two -tier module and one -tier module are filled with the heat -conducting gel between the two -tier liquid cooling board and one -tier liquid cooling board.

3. The battery liquid cooling box and battery liquid cooling device of a mine dump truck according to claim 1, characterized in that, The utility model provides a two -tier liquid cooling board and one -tier liquid cooling board are connected through the liquid cooling pipe with quick -plug, and the two -tier module and one -tier module are placed on the two -tier liquid cooling board and one -tier liquid cooling board respectively, and the two -tier module and one -tier module are connected with the two -tier installation frame and the lower box frame through the bolt, and the two -tier module and one -tier module are filled with the heat -conducting gel between the two -tier liquid cooling board and one -tier liquid cooling board.

4. The battery liquid cooling box and battery liquid cooling device of a mine dump truck according to claim 1, characterized in that, The utility model provides a two -tier liquid cooling board and one -tier liquid cooling board are connected through the liquid cooling pipe with quick -plug, and the two -tier module and one -tier module are placed on the two -tier liquid cooling board and one -tier liquid cooling board respectively, and the two -tier module and one -tier module are connected with the two -tier installation frame and the lower box frame through the bolt, and the two -tier module and one -tier module are filled with the heat -conducting gel between the two -tier liquid cooling board and one -tier liquid cooling board.

5. The battery liquid cooling box and battery liquid cooling device of a mine dump truck according to claim 1, characterized in that, The utility model provides a two -tier liquid cooling board and one -tier liquid cooling board are connected through the liquid cooling pipe with quick -plug, and the two -tier module and one -tier module are placed on the two -tier liquid cooling board and one -tier liquid cooling board respectively, and the two -tier module and one -tier module are connected with the two -tier installation frame and the lower box frame through the bolt, and the two -tier module and one -tier module are filled with the heat -conducting gel between the two -tier liquid cooling board and one -tier liquid cooling board.

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