An integrated battery pack structure

Abstract

This utility model discloses an integrated battery pack structure, including a housing module and a control panel. The housing module includes an upper shell and a lower shell, with a first positioning groove and a second positioning groove respectively provided through the upper shell and the lower shell. The upper shell has a first through hole in the first positioning groove, and the lower shell has a second through hole in the second positioning groove. The first through hole and the second through hole are used for the protrusion of the lithium battery terminals. The outer periphery of the upper shell and the outer periphery of the lower shell have a first support arm and a second support arm extending towards each other, forming an outer protective plate. When the upper shell and the lower shell are spliced ​​together, the first positioning groove and the second positioning groove form a positioning cavity for the cylindrical lithium battery. The middle part of the positioning cavity is a heat dissipation channel, and there is a gap between adjacent positioning cavities. The first support arm and the second support arm are fixed together by a detachable structure. The upper wall of the upper shell and the lower wall of the lower shell are respectively provided with a first current collector and a second current collector.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery products, and in particular to an integrated battery pack structure. Background Technology

[0002] Cylindrical lithium batteries are lithium-ion batteries characterized by a cylindrical metal casing. Their model numbers are indicated by a five-digit code representing their diameter and height. With the development of lithium batteries (such as outdoor batteries), the PACK structure of energy storage batteries is the key to integration. However, the existing integrated support structure is relatively complex, as it is necessary to achieve structural stability while also protecting the lithium battery.

[0003] For example, Chinese patent 202021395120.3 has a relatively simple structure, but it has defects in the integration and protection of lithium batteries, such as impact and heat dissipation. Therefore, how to design an energy storage battery structure that can be applied to portability and daily use is a key factor. Utility Model Content

[0004] The main purpose of this invention is to propose an integrated battery pack structure, which aims to improve the existing integrated structure, so as to achieve both protection of the lithium battery and heat dissipation, thereby realizing the integration of the structure.

[0005] To achieve the above objectives, this utility model proposes an integrated battery pack structure, comprising: A housing module, comprising an upper shell and a lower shell, wherein the upper shell and the lower shell are respectively provided with a through first positioning groove and a second positioning groove, the upper shell having a first through hole in the first positioning groove, and the lower shell having a second through hole in the second positioning groove; The first and second vias are used for the protrusion of the lithium battery terminals. The outer periphery of the upper shell and the outer periphery of the lower shell are respectively provided with a first arm and a second arm extending towards each other. The first and second arms form an outer protective plate. When the upper and lower shells are spliced ​​together, the first and second positioning grooves form a positioning cavity for the cylindrical lithium battery. The middle part of the positioning cavity is a heat dissipation channel, and there is a gap between adjacent positioning cavities. The first arm and the second arm are fixed together by a detachable structure; The upper wall of the upper shell and the lower wall of the lower shell are respectively provided with a first collector plate and a second collector plate; The control panel is located on one side of the outer peripheral wall of the housing module, which is a vertical wall, and is connected to the first and second current collectors respectively.

[0006] In the actual design, the cylindrical lithium battery is positioned by splicing the upper and lower shells together. Furthermore, by setting up the first and second arms, the outer perimeter of the housing module can be enclosed by an outer protective plate to protect the internal lithium battery. Additionally, the gap between the upper and lower shells creates a heat dissipation channel, and the adjacent lithium batteries are spaced at a predetermined distance, reducing safety hazards caused by collisions. By rationally arranging the first current collector, the second current collector, and the control panel, battery integration can be achieved. Specifically, the battery pack has no internal cable wiring, which reduces the risk of short circuits caused by vibration, accidental impact, or compression during actual use of the lithium battery pack. This ensures long-term stable operation of the lithium battery pack and prevents cable damage and short circuits caused by lithium battery compression, further improving the safety of the lithium battery pack product.

[0007] This application is applied to the power supply of equipment in products such as electric scooters, electric wheelchairs, and robots. It takes into account compactness, portability, safety and convenience, while improving safety and reliability. It adopts a cable-free wiring method to further optimize and reduce the safety factors of lithium batteries. Attached Figure Description

[0008] Figure 1 This is an exploded view of the present invention; Figure 2 This is a three-dimensional schematic diagram of the present invention; Figure 3 This is a half-sectional schematic diagram of the present invention; Figure 4 This is a schematic diagram showing the concealed control panel of this utility model. Figure 5 Schematic diagram of the housing module Figure 1 ; Figure 6 Schematic diagram of the housing module Figure 2 .

[0009] In the picture, 1 represents the housing module, 11 represents the upper housing, and 12 represents the lower housing. 21 is the first positioning groove, and 22 is the second positioning groove. 31 is the first via, and 32 is the second via. 41 is the first arm, and 42 is the second arm. 51 is the upper limit slot, and 52 is the lower limit slot. 6 represents the vertical wall, 60 represents the control panel, 61 represents the first manifold, and 62 represents the second manifold. 7 represents a non-conductive protective plate, and 70 represents a slotted plate. 81 is a positioning hole, and 82 is a locking hook. 9 is the screw, 91 is the positioning pin, 92 is the locking hole, and 100 is the lithium battery. Detailed Implementation

[0010] The technical solutions of the embodiments of this utility model 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 utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0011] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0012] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0013] like Figures 1 to 6 As shown, an integrated battery pack structure includes: The housing module 1 includes an upper shell 11 and a lower shell 12. The upper shell 11 and the lower shell 12 are respectively provided with a through first positioning groove 21 and a second positioning groove 22. The upper shell 11 is provided with a first through hole 31 in the first positioning groove 21, and the lower shell 12 is provided with a second through hole 32 in the second positioning groove 22. The first via 31 and the second via 32 are used for the protrusion of the electrode of the lithium battery. The outer periphery of the upper shell 11 and the outer periphery of the lower shell 12 are respectively provided with a first arm 41 and a second arm 42 extending towards each other. The first arm 41 and the second arm 42 form an outer protective plate. When the upper shell 11 and the lower shell 12 are spliced ​​together, the first positioning groove 21 and the second positioning groove 22 form a positioning cavity for the cylindrical lithium battery. The middle part of the positioning cavity is a heat dissipation channel, and there is a gap between adjacent positioning cavities. The first arm 41 and the second arm 42 are fixed together by a detachable structure; The upper wall of the upper shell 11 and the lower wall of the lower shell 12 are respectively provided with a first current collector and a second current collector; The control panel 60 is located on the vertical wall 6 on one side of the outer peripheral wall of the housing module 1 and is connected to the first current collector 61 and the second current collector 62 respectively.

[0014] In the actual design, the cylindrical lithium battery is positioned by splicing the upper shell 11 and the lower shell 12 together. Furthermore, by setting the first arm 41 and the second arm 42, the outer perimeter of the housing module 1 only needs to be surrounded by an outer protective plate to protect the internal lithium battery. Furthermore, a gap is provided between the upper shell 11 and the lower shell 12, thus forming a heat dissipation channel. The lithium batteries are arranged adjacent to each other with a predetermined distance, reducing safety hazards caused by collisions, etc. Furthermore, through the reasonable layout of the first current collector, the second current collector, and the control panel 60, the battery can be integrated. The current collector is equivalent to a copper sheet, thereby realizing the series or parallel connection of the positive and negative electrodes. This structure is the term for lithium battery.

[0015] Specifically, the battery pack has no internal cable wiring, which reduces the risk of short circuits caused by vibration, accidental impact, or compression during actual use of the lithium battery pack. This ensures long-term stable operation of the lithium battery pack and prevents cable damage and short circuits caused by lithium battery compression, further improving the safety of the lithium battery pack product.

[0016] This application is applied to the power supply of equipment in products such as electric scooters, electric wheelchairs, and robots. It takes into account compactness, portability, safety and convenience, while improving safety and reliability. It adopts a cable-free wiring method to further optimize and reduce the safety factors of lithium batteries.

[0017] Specifically, the upper wall of the upper shell 11 is recessed with an upper limit groove 51, and the first current collector is disposed within the upper limit groove 51. The lower wall of the lower shell 12 is recessed with a lower limiting groove 52, and the second collector plate is disposed in the lower limiting groove 52.

[0018] Furthermore, it protects the current collector and enables modular installation of the battery pack.

[0019] In this embodiment of the utility model, the vertical wall 6 is recessed with a groove to allow the first current collector 61 and the second current collector to pass through and connect to the control panel 60.

[0020] The slotted design further protects the current collector.

[0021] The BMS protection board has a reserved slot for voltage acquisition signals. Each busbar of the lithium battery is connected to the slot and soldered securely with tin. Voltage signal acquisition and current balancing are performed without using cables.

[0022] Specifically, the upper shell 11 and the lower shell 12 are made of ABS material, which has the characteristics of good fire resistance, good structural strength and lightweight.

[0023] In this embodiment of the utility model, the first current collector 61 and the second current collector are provided with a non-conductive protective plate 7 on the wall surface away from the housing module 1.

[0024] This method improves the insulation of lithium batteries without affecting their thermal conductivity. It further enhances battery safety, accelerates the heat transfer generated during operation, and ensures the battery always operates at its optimal temperature. Two lithium battery modules are connected in series using copper busbars soldered onto the BMS circuit board.

[0025] In this embodiment of the utility model, the first support arm 41 and the second support arm 42 are respectively provided with positioning holes 81 and hooks 82. The hooks 82 are inserted into the positioning holes 81 and hooked for fixation. Of course, screws can also be added to fix them together.

[0026] Specifically, the housing module 1 is provided in two sets, and the two sets of housing modules 1 are fixed to each other by screws 9. The adjacent housing modules 1 are stacked in the height direction, and Mylar sheets can be set between the adjacent modules to achieve the function of insulation.

[0027] In this embodiment of the utility model, the housing module 1 is provided with positioning posts 91 and locking holes 92 at the corresponding positions, thereby achieving mutual positioning and mutual fixation, increasing the contact area, and improving the stability of the insulating housing.

[0028] The inner walls of the first positioning groove and the inner walls of the second positioning groove are respectively provided with a plurality of spaced-apart protruding arc-shaped blocks 200, which further improves the heat dissipation of the lithium battery.

[0029] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An integrated battery pack structure, characterized in that, include: A housing module, comprising an upper shell and a lower shell, wherein the upper shell and the lower shell are respectively provided with a through first positioning groove and a second positioning groove, the upper shell having a first through hole in the first positioning groove, and the lower shell having a second through hole in the second positioning groove; The first and second vias are used for the protrusion of the lithium battery terminals. The outer periphery of the upper shell and the outer periphery of the lower shell are respectively provided with a first arm and a second arm extending towards each other. The first and second arms form an outer protective plate. When the upper and lower shells are spliced ​​together, the first and second positioning grooves form a positioning cavity for the cylindrical lithium battery. The middle part of the positioning cavity is a heat dissipation channel, and there is a gap between adjacent positioning cavities. The first arm and the second arm are fixed together by a detachable structure; The upper wall of the upper shell and the lower wall of the lower shell are respectively provided with a first collector plate and a second collector plate; The control panel is located on one side of the outer peripheral wall of the housing module, which is a vertical wall, and is connected to the first current collector and the second current collector respectively. The upper wall of the upper shell is recessed with an upper limit groove, and the first current collector is disposed within the upper limit groove. The lower wall of the lower shell is recessed with a lower limiting groove, and the second current collector is disposed in the lower limiting groove; The vertical wall is recessed with a slot to allow the first and second current collectors to pass through and connect to the control panel; the upper and lower shells are made of ABS material; the first and second current collectors are provided with non-conductive protective plates on the wall surface away from the shell module. The first and second arms are respectively provided with positioning holes and hooks, and the hooks are inserted into the positioning holes to hook and fix them; the housing module is provided in two sets, and the two sets of housing modules are fixed to each other by screws; the housing modules are respectively provided with positioning posts and locking holes at the cooperating positions; the inner walls of the first positioning groove and the inner walls of the second positioning groove are respectively provided with multiple spaced protruding arc-shaped blocks.

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