A battery pack structure

Abstract

The utility model belongs to battery technical field, concretely relates to a battery package structure, including protection shell, heat removal component, battery module and guide component, the battery module is connected in the inside of protection shell, and the battery module is equipped with the flow channel, is equipped with the flow inlet on the protection shell, the flow inlet with flow channel intercommunication setting, the heat removal component is connected on the protection shell, and the heat removal component with flow channel intercommunication setting, the guide component is connected in the inside of battery module, and extends to the flow channel setting. The utility model can increase the contact coverage area between battery module and cooling medium, and improve the heat dissipation speed and efficiency of battery module.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, and in particular relates to a battery pack structure. Background Technology

[0002] Electronic products bring many conveniences to people's lives, especially portable electronic devices and related products such as electric vehicles. Batteries are essential for the proper functioning of these electronic or electrical products. Furthermore, as users spend more time using electronic products, the lifespan of batteries also needs to be extended. To meet this demand while also being environmentally friendly, high-efficiency rechargeable batteries best fulfill the requirements.

[0003] However, the small size and compact structure of some existing battery packs result in limited heat dissipation space and a small heat dissipation contact surface, which in turn leads to poor heat dissipation of the battery pack, thus affecting the performance and cycle life of the power battery pack. Utility Model Content

[0004] The purpose of this invention is to provide a battery pack structure that addresses the shortcomings of existing technologies and solves the technical problem of poor heat dissipation in existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A battery pack structure includes a protective shell, a heat dissipation component, a battery module, and a guiding component; the battery module is connected to the interior of the protective shell and has a flow guiding channel; the protective shell has a flow guiding inlet; the flow guiding inlet communicates with the flow guiding channel; the heat dissipation component is connected to the protective shell and communicates with the flow guiding channel; the guiding component is connected to the interior of the battery module and extends into the flow guiding channel.

[0007] Preferably, the number of battery modules is at least two, and the flow channel is formed between two adjacent battery modules; the heat dissipation component and the flow inlet are disposed opposite to each other on both sides of the protective shell;

[0008] Furthermore, the width of the flow channel near the flow inlet is greater than the width of the flow channel near the heat dissipation component.

[0009] Preferably, the guiding component includes a flow guide plate and a mounting plate; the mounting plate is connected to the interior of the battery module, and a flow guide groove is provided between the mounting plate and the battery module; the flow guide groove is connected to the flow guide channel; one end of the flow guide plate is connected to the mounting plate; the other end of the flow guide plate extends obliquely toward the flow inlet and is disposed inside the flow guide channel.

[0010] Preferably, the mounting plate includes an interconnected mounting protrusion and a connecting portion; the flow guiding groove is formed between the mounting protrusion, the connecting portion, and the interior of the battery module; one end of the flow guiding plate is connected to the connecting portion; the mounting protrusion abuts against the inner wall of the battery module.

[0011] Preferably, the protective shell includes a cover, a limiting component, and a supporting shell; the cover is connected to the upper surface of the supporting shell; and the battery module is connected between the cover and the supporting shell; the limiting component is connected between the battery module and the cover, and the limiting component extends into the interior of the flow channel; and the flow inlet is connected to one side of the cover; the heat dissipation component is connected to one side of the supporting shell.

[0012] Preferably, the limiting component has at least one limiting protrusion on one side surface facing the flow channel; a limiting groove is provided between the limiting protrusion and the limiting component; the battery module abuts against the inner wall of the limiting groove; and the outer surface of the limiting protrusion abuts against the battery module.

[0013] Preferably, a discharge assembly gap is provided between the side surface of the battery module away from the flow channel and the inner wall of the protective shell; one end of the discharge assembly gap is connected to the heat dissipation component; and the other end of the discharge assembly gap is connected to the guide component.

[0014] Preferably, the heat dissipation component is a heat dissipation fan; and the input end of the heat dissipation fan is positioned towards the battery module.

[0015] Preferably, the battery module includes a mounting bracket and at least two battery bodies; all the battery bodies are connected to the interior of the mounting bracket; and a mounting gap is provided between two adjacent battery bodies; the mounting plate is connected to the interior of the mounting gap, and the two opposite side surfaces of the mounting plate abut against two adjacent battery bodies.

[0016] Preferably, the mounting bracket includes a side positioning plate, an annular locking bracket, and a locking rod; the side positioning plate is connected to the outermost battery body; the annular locking bracket is connected around the outer surface of the side positioning plate and the battery body; one end of the locking rod passes through the protective shell and the side positioning plate, and both the protective shell and the side positioning plate are connected to the locking rod.

[0017] The beneficial effects of this utility model are that, by using a guiding component to guide the cooling medium delivered into the guiding channel through the guiding inlet to the interior of the battery module, the contact coverage area between the battery module and the cooling medium is increased, and combined with the exhaust function of the upper heat dissipation component, it is beneficial to improve the heat dissipation speed and efficiency of the battery module, ensure the orderly and smooth operation of heat dissipation, thereby reducing the system operating power consumption, and also helping to improve the charging and discharging efficiency of the whole machine and extend the service life of the battery cells. Attached Figure Description

[0018] The following will refer to the appendix. Figures 1-6 This section describes the features, advantages, and technical effects of exemplary embodiments of the present invention.

[0019] Figure 1 This is a schematic diagram of the battery pack structure according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the guiding component of a battery pack structure according to an embodiment of the present invention;

[0021] Figure 3 This is a partial cross-sectional view of a battery pack structure according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the limiting component of a battery pack structure according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the battery module structure of a battery pack according to an embodiment of the present invention;

[0024] Figure 6 This is an exploded view of a battery module of a battery pack structure according to an embodiment of the present invention.

[0025] In the diagram: 100-Protective shell; 110-Cover; 120-Limiting component; 121-Limiting groove; 122-Limiting protrusion; 130-Supporting shell; 101-Guiding channel; 102-Guiding inlet; 103-Discharge assembly gap; 200-Heat exhaust component; 210-Heat exhaust fan; 300-Battery module; 310-Battery body; 311-Installation gap; 320-Mounting bracket; 321-Side positioning plate; 322-Annular locking bracket; 323-Locking rod; 400-Guiding component; 410-Draining plate; 420-Mounting plate; 421-Mounting protrusion; 422-Connecting part; 423-Guiding groove. Detailed Implementation

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is intended to particularly describe embodiments and not to limit the scope of this application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the embodiment description, "multiple" refers to two or more, unless otherwise specifically defined.

[0028] The term 'embodiment' means that a particular feature, structure, or characteristic described exists in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or multiple situations existing alone. In addition, the character " / " in this document generally indicates that the related objects before and after are in an "or" relationship.

[0030] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can also refer to a mechanical connection or an electrical connection. They can be directly connected or indirectly connected through an intermediate medium, manifesting as internal communication between two components or an interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0031] The following is in conjunction with the appendix Figures 1-6 The present invention will be described in further detail, but this is not intended to limit the scope of the present invention.

[0032] like Figure 1 As shown, in one embodiment of this utility model, the battery pack structure includes a protective shell 100, a heat dissipation component 200, a battery module 300, and a guide component 400. The battery module 300 is connected to the interior of the protective shell 100 and has a flow channel 101. The protective shell 100 has a flow inlet 102, which communicates with the flow channel 101. The heat dissipation component 200 is connected to the protective shell 100 and communicates with the flow channel 101. The guide component 400 is connected to the interior of the battery module 300 and extends into the flow channel 101.

[0033] The technical solution of this utility model uses a guiding component to guide the cooling medium that enters the guiding channel through the guiding inlet to the inside of the battery module, thereby increasing the contact coverage area between the battery module and the cooling medium. Combined with the exhaust function of the upper heat dissipation component, this helps to improve the heat dissipation speed and efficiency of the battery module, ensures the orderly and smooth operation of heat dissipation, reduces system power consumption, and helps to improve the charging and discharging efficiency of the whole machine and extend the service life of the battery cells.

[0034] Specifically, in some implementations, such as Figure 1 and 3As shown, there are at least two battery modules 300, and the airflow channel 101 is formed between two adjacent battery modules 300. The heat dissipation component 200 and the airflow inlet 102 are disposed opposite to each other on both sides of the protective shell 100. The width of the end of the airflow channel 101 near the airflow inlet 102 is greater than the width of the other end of the airflow channel 101 near the heat dissipation component 200. That is, the airflow channel 101 is a V-shaped airflow channel with one end opening wider than the other end opening. At the same time, the airflow channel 101 and the guide component 400 form a herringbone heat dissipation air duct. This increases the contact coverage area between the battery module and the cooling medium, thereby improving the heat dissipation speed and efficiency of the battery module and ensuring the orderly and smooth operation of the heat dissipation.

[0035] Specifically, in some implementations, such as Figure 1 As shown, the protective shell 100 includes a cover 110, a limiting component 120, and a supporting shell 130. The cover 110 is connected to the upper surface of the supporting shell 130 (by welding or screws, etc.). The battery module 300 is connected between the cover 110 and the supporting shell 130. The limiting component 120 is connected between the battery module 300 and the cover 110, and extends into the interior of the flow channel 101. The flow inlet 102 is connected to one side of the cover 110. The heat dissipation component 200 is connected to one side of the supporting shell 130. This structure protects the battery module 300 through the upper and lower covers 110 and the supporting shell 130, and, combined with the limiting effect of the upper limiting component 120 on the assembly position of the battery module 300, prevents the battery module from slipping or misaligning during use, thereby improving the stability and safety of use. In some embodiments, such as... Figure 1 and 3 As shown in Figure 4, the limiting component 120 has at least one limiting protrusion 122 on one side surface (bottom surface) facing the flow channel 101; a limiting groove 121 is provided between the limiting protrusion 122 and the limiting component 120; the battery module 300 abuts against the inner wall of the limiting groove 121; the outer surface of the limiting protrusion 122 abuts against the battery module 300. Furthermore, the shape of the limiting protrusion 122 is consistent with the internal cross-sectional shape of the flow channel 101; so as to achieve the limiting effect of the limiting protrusion 122 and the limiting groove 121 on the inner and outer sides of the battery module 300; thereby avoiding slippage or misalignment of the battery module during use; and improving the stability and safety of use.

[0036] Specifically, in some implementations, such as Figure 1 and 2As shown, the guiding component 400 includes a flow guide plate 410 and a mounting plate 420. The mounting plate 420 is connected to the interior of the battery module 300, and a flow guide groove 423 is provided between the mounting plate 420 and the battery module 300. The flow guide groove 423 is connected to the flow guide channel 101. One end of the flow guide plate 410 is connected to the mounting plate 420. The other end of the flow guide plate 410 extends obliquely towards the flow inlet 102 and is disposed inside the flow guide channel 101. This structure extends the flow guide plate 410 into the interior of the flow guide channel 101 to intercept part of the cooling medium from entering the flow guide groove 423. This allows direct contact between the large surfaces (wide surfaces with larger cross-sectional areas) inside the battery module 300, thereby improving heat dissipation efficiency and achieving a balanced temperature difference. It also helps to reduce system power consumption and improve the overall charging and discharging efficiency.

[0037] In some implementation methods, such as Figure 2 As shown, the mounting plate 420 includes a mounting protrusion 421 and a connecting portion 422 that are integrally connected; the flow guiding groove 423 is formed between the mounting protrusion 421, the connecting portion 422, and the interior of the battery module 300; one end of the flow guiding plate 410 is connected to the connecting portion 422; the mounting protrusion 421 abuts against the inner wall of the battery module 300. Furthermore, there are two mounting protrusions 421, symmetrically arranged on both sides of the connecting portion 422 to form a U-shaped mounting plate; this improves assembly stability while ensuring the rapid and orderly flow of the cooling medium.

[0038] Specifically, in some implementations, such as Figure 1 and 3 As shown, a discharge assembly gap 103 is provided between the side surface of the battery module 300 away from the flow channel 101 and the inner wall of the protective shell 100 (middle cover 110 or support shell 130); one end of the discharge assembly gap 103 is connected to the heat dissipation component 200; and the other end of the discharge assembly gap 103 is connected to the guide component 400 (middle flow channel 423). This structure allows cooling medium to enter through the central flow channel 101; then, the inclined flow guide plate 410 transports the cooling medium to the flow channel 423 for heat exchange; and then the discharge assembly gap 103 and the heat dissipation component 200 discharge the cooled medium after heat exchange, thereby achieving direct contact between the cold air and the large surface (wider surface with a larger cross-sectional area) of the battery module; thus improving heat dissipation efficiency and achieving a balanced temperature difference; it also helps reduce system power consumption and improve the overall charging and discharging efficiency.

[0039] Specifically, in some implementations, such as Figure 1 and 3As shown, the heat dissipation component 200 is a heat dissipation fan 210; the heat dissipation fan 210 is connected to the protective shell 100 (middle support shell 130); the input end of the heat dissipation fan 210 is connected to the discharge assembly gap 103, and the input end of the heat dissipation fan 210 is oriented towards the battery module 300; so as to improve the circulation and discharge speed of hot air, thereby improving the heat dissipation efficiency.

[0040] Specifically, in some implementations, such as Figure 1 and 5 As shown, the battery module 300 includes a mounting bracket 320 and at least two battery bodies 310; all battery bodies 310 are connected to the interior of the mounting bracket 320; and a mounting gap 311 is provided between adjacent battery bodies 310; a mounting plate 420 is connected to the interior of the mounting gap 311, and the two opposite side surfaces of the mounting plate 420 (mounting protrusion 421) abut against adjacent battery bodies 310. That is, the battery bodies 310 and the mounting plate 420 are staggered and stacked side by side. The battery bodies 310 can be nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid (or lead-acid) batteries, lithium-ion batteries, polymer lithium-ion batteries, etc.; they are not limited to any one of them here. In some embodiments, such as... Figure 5 and 6 As shown, the mounting bracket 320 includes a side positioning plate 321, an annular locking bracket 322, and a locking rod 323; the side positioning plate 321 is connected to the outermost battery body 310 on both the left and right sides; the annular locking bracket 322 is connected to the outer surface of the two side positioning plates 321; one end of the locking rod 323 passes through the protective shell 100 (middle support shell 130) and the side positioning plate 321, and is detachably connected to the protective shell 100 (middle support shell 130) and the side positioning plate 321 by threads.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0042] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A battery pack structure, characterized by: The device includes a protective shell, a heat dissipation component, a battery module, and a guide component. The battery module is connected to the interior of the protective shell and has a flow channel. The protective shell has a flow inlet. The flow inlet communicates with the flow channel. The heat dissipation component is connected to the protective shell and communicates with the flow channel. The guide component is connected to the interior of the battery module and extends into the flow channel.

2. The battery pack structure according to claim 1, characterized in that: The number of battery modules is at least two, and the flow channel is formed between two adjacent battery modules; the heat dissipation component and the flow inlet are disposed opposite to each other on both sides of the protective shell; Furthermore, the width of the flow channel near the flow inlet is greater than the width of the flow channel near the heat dissipation component.

3. The battery pack structure according to claim 1 or 2, characterized in that: The guiding component includes a flow guide plate and a mounting plate; the mounting plate is connected to the inside of the battery module, and a flow guide groove is provided between the mounting plate and the battery module; the flow guide groove is connected to the flow guide channel; one end of the flow guide plate is connected to the mounting plate; the other end of the flow guide plate extends obliquely towards the flow inlet and is disposed inside the flow guide channel.

4. The battery pack structure according to claim 3, characterized in that: The mounting plate includes an interconnected mounting protrusion and a connecting portion; the flow guiding groove is formed between the mounting protrusion, the connecting portion, and the interior of the battery module; one end of the flow guiding plate is connected to the connecting portion; the mounting protrusion abuts against the inner wall of the battery module.

5. The battery pack structure according to claim 1 or 2, characterized in that: The protective shell includes a cover, a limiting component, and a supporting shell; the cover is connected to the upper surface of the supporting shell; and the battery module is connected between the cover and the supporting shell; the limiting component is connected between the battery module and the cover, and the limiting component extends into the interior of the flow channel; and the flow inlet is connected to one side of the cover; the heat dissipation component is connected to one side of the supporting shell.

6. The battery pack structure according to claim 5, characterized in that: The limiting component has at least one limiting protrusion on one side surface facing the flow channel; a limiting groove is provided between the limiting protrusion and the limiting component; the battery module abuts against the inner wall of the limiting groove; the outer surface of the limiting protrusion abuts against the battery module.

7. The battery pack structure according to claim 1 or 2, characterized in that: A discharge assembly gap is provided between the side surface of the battery module away from the flow channel and the inner wall of the protective shell; one end of the discharge assembly gap is connected to the heat dissipation component; and the other end of the discharge assembly gap is connected to the guide component.

8. The battery pack structure of claim 1, wherein: The heat dissipation component is a heat dissipation fan; and the input end of the heat dissipation fan is positioned facing the battery module.

9. The battery pack structure of claim 3, wherein: The battery module includes a mounting bracket and at least two battery bodies; all the battery bodies are connected to the interior of the mounting bracket; and a mounting gap is provided between two adjacent battery bodies; the mounting plate is connected to the interior of the mounting gap, and the two opposite side surfaces of the mounting plate abut against the two adjacent battery bodies.

10. The battery pack structure according to claim 9, characterized in that: The mounting bracket includes a side positioning plate, an annular locking bracket, and a locking rod; the side positioning plate is connected to the outermost battery body; the annular locking bracket is connected around the outer surface of the side positioning plate and the battery body; one end of the locking rod passes through the protective shell and the side positioning plate, and both the protective shell and the side positioning plate are connected to the locking rod.

Images