Power battery pack of battery replacement heavy truck

Abstract

The embodiment of the utility model provides a battery-replacing heavy truck power battery pack, and relates to the field of battery packs. The problem that a battery pack is prone to inclining in the point changing push-pull process can be solved. The power battery pack of the battery-changing heavy truck comprises a shell, a quick-changing electrical plug-in, a quick-changing water pipe joint and at least two layers of modules, and the at least two layers of modules are stacked and fixed in the shell; the quick-change electrical plug-in and the quick-change water pipe connector are both fixed to the side portion of the bottom end of the shell and located below the at least two layers of modules. The design of at least two layers of modules is adopted, the high-voltage and low-voltage quick-change electrical plug-ins and the quick-change water pipe connectors are placed at the bottoms of the modules, push-pull stress points, the quick-change electrical plug-ins and the quick-change water pipe connectors in the battery pack battery replacement process are all arranged at the bottoms, and the quick-change electrical plug-ins are evenly stressed and not prone to deformation and damage when the battery pack is pushed in the battery replacement process; and the battery pack is not easy to topple over.

Description

Technical Field

[0001] The utility model relates to a field, specifically, to a power battery pack for a battery-swap heavy truck. Background Art

[0002] Quick-change electrical plug-ins are plug-ins used to quickly connect and disconnect electrical equipment. Using quick-change electrical plug-ins, different electrical equipment can be quickly connected and disconnected, saving time and improving work efficiency. During the maintenance of mechanical equipment, quick-change electrical plug-ins can easily replace damaged or failed parts, avoiding downtime and production losses caused by long maintenance time.

[0003] Quick-change water pipe connector is a quick-connect device used to connect water pipes or other pipes. Quick-change water pipe connector is very easy to install. You only need to insert the connector into the pipe or tool to quickly achieve a tight connection. This connector can be quickly connected and disassembled, which is convenient for maintenance and replacement, while reducing the risk of water leakage.

[0004] The quick-change electrical plug-in and quick-change water pipe joint of the existing battery pack are fixed at an oblique position above the battery pack, and are prone to tilting during the push-pull process of the battery pack. Utility Model Content

[0005] The objectives of the utility model include, for example, providing a battery pack for heavy-duty trucks with battery swapping, which can improve the problem that the battery pack is prone to tilting during the pushing and pulling process of changing points.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] An embodiment of the utility model provides a battery pack for heavy-duty trucks with battery swapping, comprising an outer shell, a quick-change electrical plug-in, a quick-change water pipe joint and at least two layers of modules, wherein at least two layers of the modules are stacked and fixed in the outer shell; the quick-change electrical plug-in and the quick-change water pipe joint are both fixed to the bottom side of the outer shell, and are both located below at least two layers of the modules.

[0008] In addition, the battery pack for heavy-duty trucks provided by the embodiments of the present utility model may also have the following additional technical features:

[0009] Optionally, the battery-swap heavy-duty truck power battery pack also includes electrical components; the electrical components are fixed to the bottom of the outer shell, and the electrical components are located below at least two layers of the modules.

[0010] Optionally, the battery-swap heavy-duty truck power battery pack also includes a mounting frame; the mounting frame is fixed to the bottom of the outer shell and is located below at least two layers of the module, the electrical components are fixed in the mounting frame, and the quick-change electrical plug-in and the quick-change water pipe joint are both fixed to the side of the mounting frame.

[0011] Optionally, the battery-swap heavy-duty truck power battery pack also includes at least two layers of liquid cooling systems; one liquid cooling system is arranged at the bottom of each module.

[0012] Optionally, the at least two layers of modules include an upper module and a lower module, the upper module and the lower module are fixed in the shell, and the lower module is fixed below the lower module.

[0013] Optionally, the battery-swap heavy-duty truck power battery pack also includes an upper liquid cooling system and a lower liquid cooling system, the upper liquid cooling system is fixed to the bottom of the upper module, and the lower liquid cooling system is fixed to the bottom of the lower module.

[0014] Optionally, the upper liquid cooling system includes a plurality of first harmonica tubes and a first connecting tube; the plurality of first harmonica tubes are sequentially connected and fixed side by side at the bottom of the upper module, the first connecting tube is fixed on one side of the module, the plurality of first harmonica tubes are connected to the first connecting tube, the first connecting tube is connected to the quick-change water pipe joint, and the first connecting tube is used to input or output cooling liquid.

[0015] Optionally, the first connecting pipe, the quick-change electrical plug-in and the quick-change water pipe connector are located on two sides opposite to each other of the upper module.

[0016] Optionally, the lower liquid cooling system includes a plurality of second harmonica tubes and a second connecting tube; the plurality of second harmonica tubes are sequentially connected and fixed side by side at the bottom of the upper module, the second connecting tube is fixed on one side of the module, the plurality of second harmonica tubes are connected to the second connecting tube, the second connecting tube is connected to the quick-change water pipe joint, and the second connecting tube is used to input or output cooling liquid.

[0017] Optionally, the second connecting pipe, the quick-change electrical plug-in and the quick-change water pipe connector are located on two sides opposite to the lower module.

[0018] The beneficial effects of the battery pack for heavy trucks with battery replacement according to the embodiment of the utility model include, for example:

[0019] The battery pack of a heavy-duty truck with battery swapping includes a shell, a quick-change electrical plug-in, a quick-change water pipe connector and at least two layers of modules. The at least two layers of modules are stacked and fixed in the shell; the quick-change electrical plug-in and the quick-change water pipe connector are both fixed on the bottom side of the shell and are both located below the at least two layers of modules.

[0020] The push-pull force points of the battery pack during battery replacement, as well as the quick-change electrical plug-in and quick-change water pipe joints, are all arranged at the bottom. When the battery pack is pushed forward during battery replacement, the quick-change plug-in is evenly stressed and not easily deformed or damaged. The design of at least two layers of modules makes the battery pack compact in length and width, reduces the span of the internal and external support parts of the battery pack, and improves the strength and rigidity of the battery pack; reduces the inconsistent speeds of the left and right ends due to the large span when pushing the battery pack during battery replacement, and reduces the risk of jamming; reduces the flow resistance of the liquid cooling system and improves the thermal management performance; when the battery pack is pushed forward during battery replacement, the quick-change plug-in is evenly stressed and not easily deformed or damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the overall structure of the battery pack for a battery-swap heavy truck provided in this embodiment;

[0023] Figure 2 A structural schematic diagram of the internal structure of the power battery pack for a battery-swap heavy truck provided in this embodiment from a first perspective;

[0024] Figure 3 A structural schematic diagram of the internal structure of the battery pack for a battery-swap heavy truck from a second perspective provided in this embodiment;

[0025] Figure 4 Schematic diagram of the internal structure of the battery-swap heavy-duty truck power battery pack provided in this embodiment.

[0026] Icons: 10-battery-swap heavy-duty truck power battery pack; 100-housing; 200-module; 300-quick-change electrical plug-in; 310-quick-change water pipe connector; 320-electrical parts; 330-installation frame; 400-upper module; 410-lower module; 430-upper liquid cooling system; 431-first harmonica pipe; 432-first connecting pipe. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0031] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0032] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0033] Combine the following Figures 1 to 4 The battery-swap heavy-duty truck power battery pack 10 provided in this embodiment is described in detail.

[0034] Please refer to Figure 1 , Figure 2 and Figure 3 An embodiment of the utility model provides a battery-swap heavy-duty truck power battery pack 10, comprising an outer shell 100, a quick-change electrical plug-in 300, a quick-change water pipe connector 310 and at least two layers of modules 200, wherein at least two layers of modules 200 are stacked and fixed in the outer shell 100; the quick-change electrical plug-in 300 and the quick-change water pipe connector 310 are both fixed to the bottom side of the outer shell 100, and are both located below the at least two layers of modules 200.

[0035] At least two layers of modules 200 are stacked in the height direction, and "at least two layers of modules 200" includes two layers of modules 200, three layers of modules 200 or four layers of modules 200. High and low voltage quick-change electrical plug-ins 300 and quick-change water pipe joints 310 are placed at the bottom of the module 200. When the battery pack is pushed forward during the battery replacement process, the quick-change plug-in is evenly stressed, and is not prone to push-pull tilting, deformation or damage.

[0036] The multi-layer module 200 design is adopted to reduce the length and width while ensuring the total power of the battery pack, reduce the inconsistent travel speeds at the left and right ends due to the large span when pushing the battery pack during the battery replacement process, and reduce the risk of jamming. The multi-layer module 200 design is adopted to reduce the length and width while ensuring the total power of the battery pack, reduce the span of the internal and external support parts of the battery pack, and improve the strength and rigidity of the battery pack.

[0037] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, the battery-swap heavy-duty truck power battery pack 10 also includes electrical components 320 ; the electrical components 320 are fixed to the bottom of the outer shell 100 , and the electrical components 320 are located below at least two layers of modules 200 .

[0038] The electrical components 320 include a series of electrical components 320 such as fuses and relays. The high and low voltage quick-change electrical plug-in 300 and the quick-change water pipe joint 310 are both arranged at the bottom of the module 200. The electrical components 320 are close to the quick-change electrical plug-in 300, which saves soft connection materials and saves costs.

[0039] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, the battery pack 10 for heavy-duty trucks with battery swapping further includes a mounting frame 330; the mounting frame 330 is fixed to the bottom of the housing 100 and is located below at least two layers of modules 200, the electrical components 320 are fixed in the mounting frame 330, and the quick-change electrical plug-in 300 and the quick-change water pipe connector 310 are both fixed to the side of the mounting frame 330. The mounting frame 330 is fixed to the bottom of the multi-layer module 200 and to the bottom of the housing 100. The mounting frame 330 is used to install the electrical components 320, the quick-change electrical plug-in 300 and the quick-change water pipe connector 310. The mounting frame 330 is also used to install the connecting water pipes mentioned below.

[0040] Reference Figure 4 In this embodiment, the battery-swap heavy-duty truck power battery pack 10 also includes at least two layers of liquid cooling systems; a liquid cooling system is arranged at the bottom of each module 200.

[0041] A multi-layer module 200+ bottom liquid cooling system with 200 modules per layer is used to reduce the length and width of the liquid cooling system, reduce flow resistance, and improve thermal management performance.

[0042] Reference Figure 3 and Figure 4In this embodiment, at least two layers of modules 200 include an upper module 400 and a lower module 410. The upper module 400 and the lower module 410 are fixed in the housing 100, and the lower module 410 is fixed below the lower module 410. The double-layer module 200 is used to reduce the length and width of the module 200, and a liquid cooling system is arranged at the bottom of each layer of the module 200.

[0043] Reference Figure 3 and Figure 4 In this embodiment, the battery-swap heavy-duty truck power battery pack 10 also includes an upper liquid cooling system 430 and a lower liquid cooling system. The upper liquid cooling system 430 is fixed at the bottom of the upper module 400, and the lower liquid cooling system is fixed at the bottom of the lower module 410.

[0044] The double-layer module 200 is used to reduce the length and width while ensuring the total power of the battery pack, and reduce the risk of jamming due to the large span and inconsistent travel speed of the left and right ends when pushing the battery pack during the battery replacement process. The double-layer module 200 is used to reduce the length and width while ensuring the total power of the battery pack, and reduce the span of the internal and external support parts of the battery pack, thereby improving the strength and rigidity of the battery pack.

[0045] Reference Figure 3 and Figure 4 In this embodiment, the upper liquid cooling system 430 includes a plurality of first harmonica tubes 431 and a first connecting tube 432; the plurality of first harmonica tubes 431 are connected in sequence and fixed side by side at the bottom of the upper module 400, the first connecting tube 432 is fixed on one side of the module 200, the plurality of first harmonica tubes 431 are connected to the first connecting tube 432, the first connecting tube 432 is connected to the quick-change water pipe connector 310, and the first connecting tube 432 is used to input or output cooling liquid.

[0046] The multi-layer module 200+ has a liquid cooling system at the bottom of each layer of the module 200. The liquid cooling system is composed of a plurality of first harmonica pipes 431 and a first connecting pipe 432. The first harmonica pipe 431 is arranged at the bottom of the battery cell and does not support the weight of the battery cell. The battery cell is supported by a T-beam. Therefore, the liquid cooling system has a simple structure, low cost, and is easy to install.

[0047] Reference Figure 3 and Figure 4 In this embodiment, the first connecting pipe 432 is located on opposite sides of the upper module 400 with the quick-change electrical plug-in 300 and the quick-change water pipe connector 310. The connecting water pipe between the first connecting pipe 432 and the quick-change water pipe connector 310 passes through the mounting frame 330.

[0048] Reference Figure 3 and Figure 4In this embodiment, the lower liquid cooling system includes a plurality of second harmonica tubes and a second connecting tube; the plurality of second harmonica tubes are connected in sequence and fixed side by side at the bottom of the upper module 400, the second connecting tube is fixed on one side of the module 200, the plurality of second harmonica tubes are connected to the second connecting tube, the second connecting tube is connected to the quick-change water pipe joint 310, and the second connecting tube is used to input or output cooling liquid.

[0049] The bottom of each layer module 200+ of the multi-layer module 200 is provided with a liquid cooling system, which is composed of a plurality of harmonica pipes and connecting pipes. The harmonica pipes are arranged at the bottom of the battery cell and do not support the weight of the battery cell. The battery cell is supported by a T-beam. Therefore, the liquid cooling system has a simple structure, low cost and is easy to install.

[0050] Reference Figure 3 and Figure 4 In this embodiment, the second connecting pipe is located on opposite sides of the lower module 410 with the quick-change electrical plug-in 300 and the quick-change water pipe connector 310. The connecting water pipe between the second connecting pipe and the quick-change water pipe connector 310 passes through the mounting frame 330.

[0051] According to a battery-swap heavy-duty truck power battery pack 10 provided in this embodiment, the working principle of the battery-swap heavy-duty truck power battery pack 10 is: the battery pack power-swap push-pull force points and the quick-change electrical plug-in 300 and the quick-change water pipe connector 310 are all arranged at the bottom, and the quick-change plug-in is evenly stressed when pushing the battery box during the power-swap process, and is not easily deformed or damaged.

[0052] The battery pack 10 for heavy trucks with battery replacement provided in this embodiment has at least the following advantages:

[0053] The module 200 is designed with at least two layers. The high and low pressure quick-change electrical plug-ins 300 and the quick-change water pipe connector 310 are placed at the bottom of the module 200. The push-pull force points during the battery pack replacement process, the quick-change electrical plug-in 300 and the quick-change water pipe connector 310 are all arranged at the bottom. When the battery pack is pushed in during the battery replacement process, the quick-change electrical plug-in 300 is evenly stressed and is not easy to deform or break, and the battery pack is not easy to tip over.

[0054] The electrical component 320 is fixed at the bottom of the module 200, and the electrical component 320 is close to the quick-change electrical plug-in 300, which saves soft connection materials and saves costs.

[0055] The design of at least two layers of modules 200 is adopted to reduce the length and width while ensuring the total power of the battery pack, reduce the span of the internal and external supports of the battery pack, and improve the strength and rigidity of the battery pack. While ensuring the total power of the battery pack, the length and width are reduced to reduce the inconsistent speed of the left and right ends of the battery pack when pushing it during the battery replacement process due to the large span, reducing the risk of jamming.

[0056] By using at least two layers of modules 200 and a liquid cooling system at the bottom of each layer of modules 200, the length and width dimensions of the liquid cooling system are reduced, flow resistance is reduced, and thermal management performance is improved.

[0057] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A battery pack for heavy trucks with battery replacement, characterized in that: include: Housing (100); At least two layers of modules (200), wherein at least two layers of the modules (200) are stacked and fixed in the housing (100); A quick-change electrical plug-in (300) and a quick-change water pipe connector (310), wherein the quick-change electrical plug-in (300) and the quick-change water pipe connector (310) are both fixed to the bottom side of the housing (100) and are both located below at least two layers of the modules (200).

2. The battery pack for heavy trucks with battery replacement according to claim 1 is characterized in that: The battery-swap heavy-duty truck power battery pack also includes an electrical component (320); the electrical component (320) is fixed to the bottom of the housing (100), and the electrical component (320) is located below at least two layers of the module (200).

3. The battery pack for heavy trucks with battery replacement according to claim 2 is characterized in that: The battery-swap heavy-duty truck power battery pack also includes a mounting frame (330); the mounting frame (330) is fixed to the bottom of the housing (100) and is located below at least two layers of the module (200); the electrical component (320) is fixed in the mounting frame (330); the quick-change electrical plug-in (300) and the quick-change water pipe connector (310) are both fixed to the side of the mounting frame (330).

4. The battery pack for heavy-duty trucks according to any one of claims 1 to 3, characterized in that: The battery pack for a battery-swap heavy truck also includes at least two layers of liquid cooling systems; one liquid cooling system is arranged at the bottom of each module (200).

5. The battery pack for heavy trucks with battery replacement according to claim 4 is characterized in that: The at least two layers of modules (200) include an upper module (400) and a lower module (410); the upper module (400) and the lower module (410) are fixed in the housing (100), and the lower module (410) is fixed below the lower module (410).

6. The battery pack for heavy trucks with battery replacement according to claim 5 is characterized in that: The battery-swap heavy-duty truck power battery pack also includes an upper liquid cooling system (430) and a lower liquid cooling system. The upper liquid cooling system (430) is fixed to the bottom of the upper module (400), and the lower liquid cooling system is fixed to the bottom of the lower module (410).

7. The battery pack for heavy trucks with battery replacement according to claim 6 is characterized in that: The upper liquid cooling system (430) comprises a plurality of first harmonica tubes (431) and a first connecting tube (432); the plurality of first harmonica tubes (431) are connected in sequence and fixed side by side at the bottom of the upper module (400); the first connecting tube (432) is fixed on one side of the module (200); the plurality of first harmonica tubes (431) are connected to the first connecting tube (432); the first connecting tube (432) is connected to the quick-change water pipe joint (310); and the first connecting tube (432) is used for inputting or outputting cooling liquid.

8. The battery pack for heavy trucks with battery replacement according to claim 7 is characterized in that: The first connecting pipe (432) is located on two sides of the upper module (400) opposite to the quick-change electrical plug-in (300) and the quick-change water pipe connector (310).

9. The battery pack for heavy trucks with battery replacement according to claim 6 is characterized in that: The lower layer liquid cooling system comprises a plurality of second harmonica tubes and a second connecting tube; the plurality of second harmonica tubes are connected in sequence and fixed side by side at the bottom of the upper layer module (400); the second connecting tube is fixed on one side of the module (200); the plurality of second harmonica tubes are connected to the second connecting tube; the second connecting tube is connected to the quick-change water pipe joint (310); and the second connecting tube is used for inputting or outputting cooling liquid.

10. The battery pack for heavy trucks with battery replacement according to claim 9 is characterized in that: The second connecting pipe is located on two sides of the lower module (410) opposite to the quick-change electrical plug-in (300) and the quick-change water pipe connector (310).

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