Battery, battery device and vehicle

Abstract

The utility model provides a battery, a battery device and a vehicle, and relates to the technical field of vehicles. The battery comprises a battery pack and a battery management module, the battery pack comprises a plastic package shell and a battery module arranged in the plastic package shell, the battery module comprises a conductive part, and the conductive part extends to the outside of the plastic package shell and is in sealed connection with the plastic package shell; the battery management module is arranged on one side of the battery pack and detachably connected with the conductive part. According to the invention, the battery module can be quickly disassembled, so that the recovery cost of the battery is reduced, the battery management module and the battery pack can be quickly disassembled, and the maintenance cost of the battery is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a battery, battery device, and vehicle. Background Technology

[0002] Electric scooters are becoming increasingly common in people's daily lives, and their agility and portability have made them popular among young consumers. The battery, as the power source of the electric scooter, ensures its normal operation.

[0003] In related technologies, battery devices typically include a housing and a battery disposed within the housing, while the battery typically includes a battery housing and a battery module disposed within the battery housing. However, battery modules suffer from the drawback of complex disassembly, increasing the cost of battery recycling. Utility Model Content

[0004] In view of the above problems, embodiments of this application provide a battery, a battery device, and a vehicle that can quickly disassemble the battery module, thereby reducing the battery recycling cost, and can quickly disassemble the battery management module and battery pack, thereby reducing the battery maintenance cost.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] A first aspect of this application provides a battery, comprising:

[0007] A battery pack, the battery pack including a plastic-encapsulated housing and a battery module disposed within the plastic-encapsulated housing, the battery module including a conductive portion extending to the outside of the plastic-encapsulated housing and being sealed to the plastic-encapsulated housing;

[0008] A battery management module is disposed on one side of the battery pack and is detachably connected to the conductive part.

[0009] In one possible implementation, the encapsulated housing includes:

[0010] The main body contains the battery module; the main body has a through hole for the conductive part to pass through.

[0011] The first sealing part is connected to one end of the main body and is formed by hot pressing through a thermoplastic process.

[0012] In one possible implementation, the main body is sealed to the conductive part via a second sealing part; wherein the second sealing part includes sealant, and / or the second sealing part is formed by partial thermoforming of the main body.

[0013] In one possible implementation, the encapsulated housing is made of polyethylene and polyvinyl chloride.

[0014] In one possible implementation, the battery management module includes a housing and a battery management module disposed within the housing;

[0015] The battery management module includes a connection terminal that extends outside the package housing and is electrically connected to the conductive part.

[0016] In one possible implementation, potting compound is disposed within the encapsulation housing.

[0017] In one possible implementation, a buffer layer is provided on at least one side of the battery pack.

[0018] A second aspect of this application provides a battery device, which includes: a battery casing and the battery described in the first aspect;

[0019] The battery is disposed within the battery casing.

[0020] In one possible implementation, the battery casing has an opening;

[0021] The battery pack is housed inside the battery casing, and the battery management module of the battery covers the opening and is connected to the battery casing.

[0022] A third aspect of this application provides a vehicle that includes the battery device described in the second aspect.

[0023] In the battery, battery device, and vehicle provided in this application embodiment, the battery module is directly encapsulated within a plastic casing, and the conductive portion extends to the outside of the plastic casing and is sealed to it. This allows the battery module to be sealed using the sealing properties of the plastic casing during the encapsulation process, eliminating the need for potting adhesive between the battery module and the plastic casing as in related technologies. When disassembling the battery, only the plastic casing needs to be removed to separate the battery module from it, thus simplifying battery module disassembly and reducing battery recycling costs.

[0024] In addition, the battery management module and the conductive part are detachably connected, so that the battery management module and the battery pack are relatively independent separate parts. In this way, when the battery management module needs to be replaced or repaired, the battery management module can be directly separated from the conductive part without damaging the overall structure of the battery pack, thereby improving the efficiency of battery installation and removal.

[0025] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the batteries, battery devices, and vehicles provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation methods. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A perspective view of the battery device provided in the embodiments of this application;

[0028] Figure 2 An exploded view of the battery device provided in the embodiments of this application;

[0029] Figure 3 An explosion diagram of a battery provided in an embodiment of this application;

[0030] Figure 4 An exploded view of the battery module provided in the embodiments of this application;

[0031] Figure 5 The state of the battery assembly process provided in the embodiments of this application. Figure 1 ;

[0032] Figure 6 The state of the battery assembly process provided in the embodiments of this application. Figure 2 .

[0033] Explanation of reference numerals in the attached figures:

[0034] 100: Battery pack;

[0035] 110: Plastic-encapsulated housing; 111: Main body; 112: First sealing part;

[0036] 120: Battery module; 121: Battery cell; 122: Conductive part; 123: Tray; 124: Cover plate;

[0037] 130: Buffer layer;

[0038] 200: Battery Management Module;

[0039] 210: Encapsulation housing; 211: Housing body; 212: Encapsulation end cap;

[0040] 220: Battery Management Module;

[0041] 230: Screw;

[0042] 300: Battery casing; 310: Opening. Detailed Implementation

[0043] As described in the background section, batteries in related technologies suffer from inconvenient and costly recycling. The inventors have discovered that this problem arises because battery devices in these technologies typically include a casing and a battery housed within it. The battery itself comprises a battery pack, which includes a battery housing and battery modules housed within the housing. To improve the waterproofing of the battery housing, potting compound is usually applied. This compound fills the gap between the battery housing and the battery modules, forming a waterproof barrier to prevent moisture from entering the battery. When it is necessary to replace or recycle the battery modules, the potting compound typically has high adhesive strength, requiring specialized tools and methods to separate it from the battery modules. This increases the complexity of disassembling the battery modules, thereby increasing the battery recycling cost.

[0044] To address the aforementioned technical problems, embodiments of this application provide a battery, a battery device, and a vehicle. The battery module is directly encapsulated within a plastic casing, with conductive portions extending to the outside of the casing and sealingly connected to it. This allows the battery module to be sealed using the sealing properties of the casing during the encapsulation process, eliminating the need for potting adhesive between the battery module and the casing as in related technologies. When disassembling the battery, only the casing needs to be removed to separate the battery module from it, thus simplifying battery module disassembly and reducing battery recycling costs.

[0045] In addition, the battery management module and the conductive part are detachably connected, so that the battery management module and the battery pack are relatively independent separate parts. In this way, when the battery management module needs to be replaced or repaired, the battery management module can be directly separated from the conductive part without damaging the overall structure of the battery pack, thereby improving the efficiency of battery installation and removal.

[0046] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0047] Please refer to the attached document. Figure 1 To be continued Figure 4 This application provides an embodiment of a battery that is used in electrical devices, such as vehicles.

[0048] The battery includes a battery pack 100, wherein the battery pack 100 includes a plastic encapsulation shell 110, which serves as a support component of the battery pack 100 and is used to encapsulate the battery module 120, thereby facilitating the protection of the battery module 120.

[0049] The battery pack 100 also includes a battery module 120, which is disposed within a plastic-encapsulated housing 110. The battery module 120 may include multiple battery cells 121, which are arranged in an array to increase the capacity of the battery module 120.

[0050] The battery module 120 may further include a conductive portion 122, which extends to the outside of the encapsulated housing 110 and is sealed to the encapsulated housing 110. In other words, the encapsulated housing 110 may include a through-hole, and the end of the conductive portion 122 opposite to the battery module 120 passes through the through-hole and extends to the outside of the encapsulated housing 110.

[0051] It should be understood that the battery module 120 also includes a tray 123 and a cover 124. The tray 123 has multiple mounting positions, each with a battery cell 121. This not only simplifies the assembly process and improves production efficiency, but also makes subsequent maintenance and replacement of battery cells more convenient and faster. Furthermore, when the mounting position is a mounting recess, each battery cell 121 can be inserted into the corresponding mounting recess, thus increasing the connection strength between the tray 123 and the multiple battery cells 121.

[0052] A cover plate 124 is disposed on the side of the plurality of battery cells 121 opposite to the tray 123 and is electrically connected to each battery cell 121. Thus, a conductive part 122 can be disposed on the cover plate 124 to facilitate electrical connection between the battery pack 100 and the vehicle's electrical components, providing power output to the electrical components. The conductive part 122 can be a wire.

[0053] Please refer to the attached document. Figure 3 The plastic-encapsulated housing 110 includes a main body 111, in which the battery module 120 is housed. It should be noted that the shape of the main body 111 corresponds to the shape of the battery module 120. For example, the longitudinal cross-sectional shape of the main body 111 is square, where the square can be either rectangular or square.

[0054] The main body 111 has a through hole for the conductive part 122 to pass through, so that the end of the conductive part 122 away from the battery module 120 is located outside the through hole.

[0055] The encapsulated housing 110 also includes a first sealing part 112, which is connected to one end of the main body 111 and is formed by hot pressing through a thermoplastic process.

[0056] For specific preparation procedures, please refer to the appendix. Figure 5 A pre-designed plastic encapsulation housing is provided, which has a through hole at one end and a mounting port at the other end for inserting the battery module 120 into the plastic encapsulation housing 110.

[0057] The battery module 120 is installed into the plastic encapsulation housing 110, and the conductive part 122 of the battery module 120 is provided with a through hole and extends to the outside of the plastic encapsulation housing 110.

[0058] Subsequently, the end of the plastic-sealed housing 110 away from the through hole is hot-pressed using a thermoplastic process to form the first sealing part 112.

[0059] Please refer to the attached document. Figure 6 The plastic encapsulated housing 110 is vented and heat-shrinked to deform it so that the plastic encapsulated housing 110 is tightly attached to the battery module 120.

[0060] In this embodiment, the encapsulated housing 110 is made of polyethylene and polyvinyl chloride. Thus, polyethylene and polyvinyl chloride have certain blow molding and heat shrinking properties, allowing the battery module 120 to be installed into the encapsulated housing 110, after which the encapsulated housing 110 can be further processed to form the battery pack 100.

[0061] This configuration allows the battery module 120 to be sealed using the sealing properties of the plastic encapsulation housing 110 during the encapsulation process. Unlike related technologies, it is not necessary to apply glue between the battery module and the plastic encapsulation housing. When disassembling the battery, the battery module 120 can be separated from the plastic encapsulation housing 110 simply by removing the plastic encapsulation housing. This simplifies the disassembly of the battery module and reduces the battery recycling cost.

[0062] In addition, the absence of potting compound between the plastic-encapsulated housing 110 and the battery module reduces the weight of the battery pack 100, thereby increasing the energy density of the battery.

[0063] In this embodiment, the conductive part 122 is sealed to the plastic encapsulation housing 110. For example, the conductive part 122 is connected to the plastic encapsulation housing 110 through a second sealing part (not shown in the figure).

[0064] The second sealing part can be a sealant. For example, the sealant fills the gap between the conductive part 122 and the through hole to achieve a sealed connection between the conductive part 122 and the plastic encapsulation housing 110. The sealant not only provides a physical seal but also enhances the electrical connection stability between the conductive part 122 and the plastic encapsulation housing 110 to a certain extent.

[0065] The second sealing portion can also be formed by hot pressing a portion of the main body 111. For example, after venting the plastic-sealed housing 110, the area of ​​the main body 111 opposite to the conductive portion 122 is hot-pressed using a thermoforming device, so that the portion of the main body 111 is hot-melted and deformed to form the second sealing portion.

[0066] The second sealing part, formed by hot pressing, not only has excellent sealing performance but also enhances the overall structural strength of the plastic-encapsulated housing, improving the battery module 120's resistance to damage from external impacts or vibrations. Furthermore, since the second sealing part is formed directly by hot pressing a portion of the main body 111, no additional sealing material is required, thus improving material utilization, helping to reduce production costs, and minimizing environmental impact.

[0067] Please refer to the attached document. Figure 2 The battery provided in this application embodiment also includes a battery management module 200, which is disposed on one side of the battery pack 100 and is detachably connected to the conductive part 122.

[0068] The Battery Management System (BMS) is connected to the conductive part 122 to enable real-time monitoring of the battery status and the adoption of corresponding protection measures, which greatly reduces the risk of battery failure and safety accidents.

[0069] In related technologies, the battery management module is typically connected to the battery module and then assembled with the housing. To improve the battery pack's sealing, potting is usually required inside the housing. When the battery management module malfunctions, the entire battery pack needs to be disassembled, reducing the efficiency of battery pack assembly and disassembly.

[0070] In this embodiment, the battery management module 200 is detached from the conductive part 122, so that the battery management module 200 and the battery pack 100 are relatively independent separate parts. In this way, when the battery management module needs to be replaced or repaired, the battery management module 200 can be directly separated from the conductive part 122 without damaging the overall structure of the battery pack 100, thereby improving the battery disassembly and assembly efficiency.

[0071] Please refer to the attached document. Figure 4The battery management module 200 includes a housing 210 and a battery management module 220. The housing 210 can be a metal housing to improve the structural strength of the battery management module 200.

[0072] The battery management module 220 is disposed within the package housing 210. The battery management module 220 includes connection terminals that extend outside the package housing 210 and are electrically connected to the conductive part 122.

[0073] In this way, the battery management module 220 can be protected by the encapsulation housing 210. The encapsulation housing 210 is made of metal, which can effectively block the influence of external electromagnetic interference on the battery management module 220. At the same time, it also reduces the interference of electromagnetic radiation generated by the battery management module 220 itself on the external environment, ensuring the stability and safety of the battery management module.

[0074] In this embodiment, the encapsulation housing 210 includes a housing body 211 with an encapsulation opening, and the housing body 211 has a mounting cavity, thus providing installation space for the battery management module 220.

[0075] The encapsulation housing 210 also includes an encapsulation end cap 212, which is connected to the housing body 211 and seals the encapsulation opening.

[0076] To prevent external moisture from corroding the battery management module 220, it is typically necessary to seal it. For example, a potting compound is provided inside the encapsulation housing 210. The potting compound fills the encapsulation housing 210, effectively isolating it from external moisture, dust, and other corrosive substances, creating a dry and clean working environment for the battery management module 220, thereby extending its service life and reliability. Furthermore, the potting compound not only provides a seal but also strengthens the connection between the encapsulation housing 210 and the battery management module 220 to a certain extent, reducing loosening or damage caused by vibration or impact, and improving the overall structural strength and stability of the battery.

[0077] In one possible implementation, a buffer layer 130 is provided on at least one side of the battery pack 100. The buffer layer 130 can be an elastic element or a cushioning foam.

[0078] It should be understood that the buffer layer 130 can be bonded to part of the side surface of the battery pack 100 or to all of the side surface of the battery pack 100. In this example, the buffer layer 130 can effectively absorb and disperse external impact forces, such as those generated by drops or collisions, protecting the internal structure of the battery pack from damage and thus extending the service life of the battery pack.

[0079] When the battery pack 100 is applied to a vehicle, it will be subjected to continuous vibration during vehicle operation, especially on bumpy roads. At this time, the elastic properties of the buffer layer 130 can reduce the impact of these vibrations on the internal components of the battery pack and prevent loosening of connections, performance degradation or damage caused by vibration.

[0080] It should be noted that when the buffer layer 130 covers all sides of the battery pack 100, the buffer layer 130 can be a single structure or a separate structure. For example, the buffer layer 130 includes at least two sub-buffer layers, which allows the sub-buffer layers to be installed individually or in groups, reducing the complexity and difficulty of overall installation and improving work efficiency.

[0081] This application also provides a battery device, which includes a battery housing 300 and a battery as described in any of the above embodiments, with the battery disposed in the battery housing 300.

[0082] The battery casing 300 is made of materials including, but not limited to, aluminum. Since the battery device includes the battery described in any of the above embodiments, and the battery has good sealing properties, it is unnecessary to fill the battery casing 300 with potting compound. This simplifies the manufacturing process of the battery device, reducing production complexity and cost. It also reduces the time and resources required for additional processes such as potting compound curing and testing.

[0083] It should be noted that the battery can be completely housed in the battery casing 300 and secured using the structure of the battery casing 300 itself.

[0084] The battery may also be partially located within the battery housing 300 and connected to the battery housing 300 via the encapsulation housing 210 of the battery management module 200. Exemplarily, the battery housing 300 has an opening 310.

[0085] The battery pack 100 is housed within the battery casing 300, and the battery management module 200 covers the opening 310 of the battery casing 300 and is connected to it. The battery management module 200 and the battery casing 300 are secured together using screws 230, thus connecting the battery pack 100 and the battery casing 300. In this embodiment, the screws 230 serve as connectors, which are not only simple and easy to use, but also facilitate the installation and removal of the battery pack 100 and the battery management module 200, making maintenance and replacement of the battery pack easier.

[0086] This application also provides a vehicle including the battery device described in any of the above embodiments. Therefore, the vehicle possesses all the structure and beneficial effects of the battery device, which will not be elaborated upon further in this embodiment.

[0087] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0088] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery, characterized in that, include: A battery pack, the battery pack including a plastic-encapsulated housing and a battery module disposed within the plastic-encapsulated housing, the battery module including a conductive portion extending to the outside of the plastic-encapsulated housing and being sealed to the plastic-encapsulated housing; A battery management module is disposed on one side of the battery pack and is detachably connected to the conductive part.

2. The battery according to claim 1, characterized in that, The encapsulated housing includes: The main body contains the battery module; the main body has a through hole for the conductive part to pass through. The first sealing part is connected to one end of the main body and is formed by hot pressing through a thermoplastic process.

3. The battery according to claim 2, characterized in that, The main body is sealed to the conductive part via a second sealing part; wherein the second sealing part includes sealant, and / or the second sealing part is formed by partial hot pressing of the main body.

4. The battery according to any one of claims 1-3, characterized in that, The encapsulated housing is made of polyethylene and polyvinyl chloride.

5. The battery according to any one of claims 1-3, characterized in that, The battery management module includes a housing and a battery management module disposed within the housing; The battery management module includes a connection terminal that extends outside the package housing and is electrically connected to the conductive part.

6. The battery according to claim 5, characterized in that, The encapsulation housing contains potting compound.

7. The battery according to claim 6, characterized in that, A buffer layer is provided on at least one side of the battery pack.

8. A battery device, characterized in that, Includes a battery casing and the battery as described in any one of claims 1-7; The battery is disposed within the battery casing.

9. The battery device according to claim 8, characterized in that, The battery casing has an opening; The battery pack is housed inside the battery casing, and the battery management module of the battery covers the opening and is connected to the battery casing.

10. A vehicle, characterized in that, Includes the battery device as described in claim 8 or 9.

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