Battery pack with quickly assembled battery cells for electric carrier

Abstract

The utility model relates to the technical field of electric trucks, in particular to a battery pack for quickly assembling battery cells for an electric truck. Comprising a shell, a buckle assembly arranged in the shell and a plurality of batteries arranged in the buckle assembly in sequence; a plurality of clamping grooves are formed in the inner walls of the two sides, connected with the buckle assembly, of the shell. Clamping blocks are arranged on the two sides of the buckle assembly, and the clamping blocks are matched with the clamping grooves; the buckle assembly comprises a lower buckle arranged at the bottom of the shell and an upper buckle arranged on one side of the lower buckle; a plurality of grooves for mounting the batteries are correspondingly formed in the upper buckle and the lower buckle; and a plurality of layers of grooves are arranged. The battery pack provided by the utility model has the advantages that the capacity of the battery pack can be adjusted, the cruising ability is strong, the stability is good, the service life is long, the safety is high, the structure is simple, the disassembly and assembly are convenient, and the like.

Description

Technical Field

[0001] This utility model relates to the field of electric transport vehicle technology, and in particular to a battery pack for electric transport vehicles that allows for rapid assembly of battery cells. Background Technology

[0002] With the development of the times, battery packs are now widely used in various vehicles to generate electricity. When using battery packs to generate electricity for forklifts, the range of the battery packs needs to be considered.

[0003] Chinese patent CN215342839U discloses a battery pack for two-wheeled vehicles, including a housing. The housing includes an upper shell and a lower shell. A battery module is mounted on the lower shell. The inner wall of the lower shell is lined with cushioning foam. A protective plate is mounted on the outer side of the battery module. A pressure plate is mounted on the top of the battery module. A sealant is used to connect the pressure plate and the battery module. A positioning groove is located at the bottom of the upper shell, and a positioning device is mounted on the positioning groove. Fastening holes are located on the outer sides of both the upper and lower shells, and fastening pins are mounted on the fastening holes. A sealant is used to connect the upper and lower shells, sealing the pressure plate and the battery module together. This secondary sealing connection achieves IP67 waterproof rating. The positioning device is wirelessly connected to a backend system, allowing the positioning device to send relevant information about the battery module pack to backend equipment.

[0004] However, this technical solution uses pressure plates, fastening pins, and sealant to fix the battery. When the battery needs to be replaced or repaired, the pressure plates may be damaged during disassembly, thus affecting the use of the battery pack. Furthermore, the layout and number of the battery modules are limited, and the capacity and specifications of the batteries cannot be adjusted. It is only applicable to a single type of battery and has great limitations. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a battery pack for electric pallet trucks that allows for rapid assembly of battery cells. By snapping the buckle assembly into the housing, the buckle assembly is easy to install and remove, provides good fixation, and does not damage the housing or the buckle assembly. Multiple batteries are then sequentially installed into the buckle assembly to form a battery pack. The number of batteries can be adjusted to ensure the electric pallet truck's range.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A battery pack for rapid assembly of battery cells for an electric transport vehicle includes: a housing, a snap-fit ​​assembly disposed inside the housing, and a plurality of batteries arranged sequentially inside the snap-fit ​​assembly.

[0008] Preferably, the inner walls on both sides of the outer shell that connect to the buckle assembly are provided with several slots.

[0009] Preferably, the buckle assembly has a buckle block on both sides, and the buckle block is adapted to the buckle slot.

[0010] Preferably, the latching assembly includes: a lower latch disposed at the bottom of the housing and an upper latch disposed on one side of the lower latch.

[0011] Preferably, both the upper and lower latches are provided with a plurality of grooves for installing the battery.

[0012] Preferably, the groove is provided with several layers.

[0013] Preferably, a protective plate is provided on the side of the upper buckle opposite to the groove.

[0014] Preferably, the outer casing includes an upper casing and a lower casing disposed adjacent to the upper casing, and the snap-fit ​​assembly is disposed between the upper casing and the lower casing.

[0015] Preferably, one end of the outer casing is provided with a carrying handle.

[0016] Preferably, the buckle assembly has several adhesive grooves on the side surface adjacent to the buckle block.

[0017] Preferably, the outer shell is made of fire-retardant material, and a high-temperature sponge is provided between the buckle assembly and the outer shell.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) By adapting the slot on the inner wall of the outer shell to the block on the side wall of the buckle assembly, the buckle assembly can be installed quickly and stably, which makes the battery pack assembly process simpler and more efficient, reducing assembly time and labor costs. The cooperation between the slot and the block can effectively prevent the buckle assembly from loosening and shifting during use, ensuring the stability of the battery pack structure, thereby improving the safety and reliability of the battery pack and extending its service life.

[0020] (2) This utility model provides several slots on the inner wall of the outer shell, that is, the position of the buckle assembly inside the outer shell can be changed. Specifically, it can be adjusted according to the actual required battery model or specifications, thus ensuring the battery pack's endurance.

[0021] (3) This utility model uses a split structure to assemble the outer shell and the buckle assembly. The split structure facilitates the assembly and disassembly of the battery pack, makes reasonable use of space, and allows the batteries to be arranged tightly and orderly inside the buckle assembly, thereby improving the overall energy density of the battery pack.

[0022] (4) By providing several glue-applying grooves on the buckle assembly, the glue can be applied to the glue-applying grooves during assembly, which further enhances the connection strength between the buckle assembly and the outer shell. The glue-applying grooves can also play a certain sealing role, preventing external dust, moisture and other substances from entering the battery pack, thereby extending the battery pack's service life and improving its reliability in harsh environments.

[0023] (5) By using fire-retardant materials to make the shell, this utility model can effectively reduce the risk of fire caused by battery failure, short circuit, etc. during the use of the battery pack. When the battery pack is abnormally heated or catches fire, the fire-retardant materials can delay the spread of the fire, buy time for personnel evacuation and fire fighting, and reduce the losses caused by the fire. In addition, the fire-retardant materials also have certain heat insulation properties, which can protect the batteries inside the battery pack from the influence of the external high temperature environment to a certain extent, ensure that the batteries work within the normal temperature range, and improve the performance and service life of the batteries.

[0024] In summary, this utility model has the advantages of adjustable battery pack capacity, strong endurance, good stability, long service life, high safety, simple structure, and convenient assembly and disassembly. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 for Figure 1 Enlarged view of point A;

[0027] Figure 3 This is an exploded view of the components of this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the protective plate of this utility model. Detailed Implementation

[0029] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Example

[0032] like Figures 1-4 As shown, this embodiment provides a battery pack for quick assembly of battery cells for electric pallet trucks, including: a housing 1, a snap-fit ​​assembly 2 disposed inside the housing 1, and a plurality of batteries 3 arranged sequentially inside the snap-fit ​​assembly 2. The snap-fit ​​greatly shortens the assembly and maintenance time of the battery pack, improves production efficiency and maintenance efficiency, and is especially suitable for equipment such as electric pallet trucks that require frequent replacement of batteries 3 or maintenance.

[0033] The inner walls on both sides of the outer shell 1 that connect to the buckle assembly 2 are provided with several slots 11, meaning that the position of the buckle assembly 2 inside the outer shell 1 can be changed. Specifically, it can be adjusted according to the actual required battery 3 model or specifications, and has a wide range of applications.

[0034] Meanwhile, both sides of the buckle assembly 2 are provided with buckle blocks 21, which are adapted to the buckle slot 11, so that the buckle assembly 2 can be installed quickly and securely, thereby making the battery pack assembly process simpler and more efficient, and reducing assembly time and labor costs.

[0035] In this embodiment, the cooperation between the slot 11 and the block 21 can effectively prevent the buckle assembly 2 from loosening and shifting during use, ensuring the stability of the battery pack structure, thereby improving the safety and reliability of the battery pack and extending its service life.

[0036] In this embodiment, the buckle assembly 2 can be an integral structure or a split structure. In this embodiment, a split structure is preferred. The buckle assembly 2 includes a lower buckle 26 disposed at the bottom of the outer shell 1 and an upper buckle 22 disposed on one side of the lower buckle 26. This can make reasonable use of space, so that the battery 3 can be arranged tightly and orderly inside the buckle assembly 2, thereby improving the overall energy density of the battery pack.

[0037] In this embodiment, both the upper buckle 22 and the lower buckle 26 are provided with a plurality of grooves 23 for installing the battery 3. The size of the grooves 23 is adapted to the size of the battery 3, and it is necessary to ensure that the battery 3 will not come out of the grooves 23. By changing the size and spacing of the grooves 23, various specifications of batteries 3 can be adapted, so that the battery pack has good versatility and compatibility to meet the needs of different electric transport vehicles.

[0038] In this embodiment, the groove 23 is provided with several layers. The multi-layered groove 23 further increases the number of batteries installed, thereby increasing the total capacity of the battery pack and meeting the requirements of the electric transport vehicle for range.

[0039] In this embodiment, the layered grooves 23 can also play a certain role in separating and protecting the batteries 3, preventing collisions and short circuits between the batteries 3, and ensuring the safe operation of the entire battery pack.

[0040] In this embodiment, a protective plate 25 is provided on the side of the upper buckle 22 opposite to the groove 23, that is, a protective plate 25 is provided on the outer side of the upper buckle 22. Different protective plates 25 are selected according to the different number of batteries 3 in the buckle assembly 2. The protective plate 25 has complete overcharge protection, over-discharge protection, overcurrent protection, short circuit protection, and open circuit protection functions, as well as MOS temperature protection and cell temperature protection functions. When using the protective plate 25, the design parameters and usage conditions must be followed. It must not be used in violation of the parameters in this specification, otherwise the protective plate 25 may be easily damaged, thereby damaging the battery pack. Static electricity prevention is also required during use. When testing, installing, or touching the protective plate 25, corresponding static electricity discharge measures must be taken. It is also forbidden to use two or more protective plates 25 in series or in parallel.

[0041] In this embodiment, the battery pack is generally equipped with a main nameplate label (mainly including parameters such as current, voltage, applicable temperature and battery capacity), a separate collection label, a power switch label, a CPT label, a QR code and barcode label, and an anti-collision warning label, so as to ensure the correct and safe use of the battery pack.

[0042] In this embodiment, the outer casing 1 includes an upper casing 12 and a lower casing 13 disposed adjacent to the upper casing 12. The snap-fit ​​assembly 2 is disposed between the upper casing 12 and the lower casing 13. The split structure facilitates the assembly and disassembly of the battery pack. During assembly, the snap-fit ​​assembly 2 can be placed in the lower casing 13 first, and then the upper casing 12 and the lower casing 13 can be fixed together, making the operation simple and convenient. When it is necessary to replace the battery 3 or repair the battery pack, the battery 3 and the snap-fit ​​assembly 2 can be easily accessed simply by opening the upper casing 12, which greatly improves the efficiency of maintenance and replacement and reduces maintenance costs. At the same time, this structure is also beneficial to the molding and processing of the outer casing 1 and the selection of materials. The upper casing 12 and the lower casing 13 can be optimized according to different needs.

[0043] In this embodiment, one end of the outer shell 1 is provided with a carrying handle 14, which makes it easy to carry and secure during transportation to avoid damage.

[0044] In this embodiment, a power switch 16 for controlling the start and stop of the battery 3 output and a connector 17 for transmitting power to the electric transport vehicle are respectively provided on both sides below the handle slot 14. The power switch 16, the connector 17 and the buckle assembly 2 do not interfere with each other, thereby ensuring the normal operation of the battery pack.

[0045] In this embodiment, a plurality of adhesive grooves 24 are provided on the side surface of the buckle assembly 2 adjacent to the buckle block 21. Adhesive can be applied into the adhesive grooves 24 during assembly to further enhance the connection strength between the buckle assembly 2 and the outer shell 1. The adhesive grooves 24 can play a certain sealing role to prevent external dust, moisture and other substances from entering the battery pack, thereby extending the service life of the battery pack and improving its reliability in harsh environments.

[0046] Of course, the outer shell 1 is made of fire-retardant material, which can be processed and molded with ABS and fire-retardant materials. It can effectively reduce the risk of fire caused by battery 3 failure, short circuit, etc. during the use of the battery pack. When the battery pack overheats or catches fire, the fire-retardant material can delay the spread of fire, buy time for personnel evacuation and fire fighting, and reduce the losses caused by the fire. At the same time, the fire-retardant material also has a certain heat insulation performance, which can protect the battery 3 inside the battery pack from the influence of the external high temperature environment to a certain extent, ensure that the battery 3 works within the normal temperature range, and improve the performance and service life of the battery 3.

[0047] In addition, a high-temperature sponge 15 is provided between the buckle assembly 2 and the outer shell 1. Specifically, a layer of high-temperature sponge 15 is provided between the lower buckle 26 and the inner wall of the outer shell 1, and a layer of high-temperature sponge 15 is provided between the outer wall of the upper buckle 22 and the protective plate 25, to further retard flame and protect the battery 3.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery pack for rapid cell assembly in an electric transport vehicle, characterized in that, include: The casing, a snap-fit ​​assembly disposed inside the casing, and a plurality of batteries arranged sequentially inside the snap-fit ​​assembly.

2. The battery pack with quick assembly of the electric core for the electric truck according to claim 1, characterized in that, The inner walls on both sides of the outer shell that connect to the buckle assembly are provided with several slots.

3. The battery pack with quick assembly of the electric core for the electric truck according to claim 2, characterized in that, Both sides of the buckle assembly are provided with buckle blocks, which are adapted to the buckle slot.

4. The battery pack with quick assembly of the electric core for the electric truck according to claim 1, characterized in that, The latching assembly includes: a lower latch disposed at the bottom of the housing and an upper latch disposed on one side of the lower latch.

5. The battery pack with quick assembly of the electric core for the electric truck according to claim 4, characterized in that, Both the upper and lower latches are provided with several grooves for installing the battery.

6. The battery pack of claim 5, wherein, The groove has several layers.

7. The battery pack of claim 5, wherein, A protective plate is provided on the side of the upper buckle opposite to the groove.

8. The battery pack of claim 2, wherein, The outer casing includes an upper casing and a lower casing disposed adjacent to the upper casing, and the snap-fit ​​assembly is disposed between the upper casing and the lower casing.

9. The battery pack of claim 3, wherein, The buckle assembly has several adhesive grooves on the side surface adjacent to the buckle block.

10. A battery pack for rapid cell assembly in an electric transport vehicle according to claim 1, characterized in that, The outer shell is made of fire-resistant and flame-retardant material.

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