CN213459867U

CN213459867U - Aluminum sheet type double-row heat dissipation device of lithium ion battery module

Info

Publication number: CN213459867U
Application number: CN202021828062.9U
Authority: CN
Inventors: 李龙德; 彭立军
Original assignee: Jiangsu Fengxin Energy Power Technology Co ltd
Current assignee: Jiangyin woyufu New Energy Vehicle Technology Co.,Ltd.
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-15
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a double heat abstractor of lithium ion battery module aluminum sheet formula, including roof-rack and chassis four lithium cells are installed to vertical equidistance in roof-rack and chassis middle part, and current conducting plate and roof-rack fixed connection are passed through at every lithium cell top, and current conducting plate and chassis fixed connection are passed through to every lithium cell bottom, are provided with the spacer groove at two adjacent lithium cell middle parts, at the inside vertical first radiator unit of installing of spacer groove, install four second radiator unit at the outside equal equidistance of left and right sides lithium cell four radiator unit still are provided with the third radiator unit in roof-rack top middle part, the beneficial effects of the utility model are that: this device reasonable in design, inside is provided with first heat abstractor, second heat abstractor and third heat abstractor, effectively guarantees the radiating effect of each direction of lithium ion battery, promotes the inside current distribution of battery, further improves the life of battery, has higher practicality and market prospect, is fit for using widely on a large scale.

Description

Aluminum sheet type double-row heat dissipation device of lithium ion battery module

Technical Field

The utility model relates to a lithium ion battery trade specifically is a lithium ion battery module aluminum sheet formula double row heat abstractor.

Background

A lithium ion battery is a type of secondary battery that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, Li + is inserted and extracted back and forth between two electrodes: during charging, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high. With the development of scientific technology, lithium ion batteries have become the mainstream.

Lithium ion battery can produce certain heat at the in-process of charge-discharge, especially can produce a large amount of heats inside lithium ion battery at the in-process of heavy current charge-discharge, but because lithium ion battery structural feature has apparent difference in the direction heat conductivity of difference, the heat conductivity in the direction that is on a parallel with the pole piece will be showing the heat conductivity that is higher than perpendicular to pole piece direction, consequently different radiating mode not only has apparent difference in efficiency, current lithium ion battery heat abstractor can produce serious temperature gradient inside lithium ion battery, influence the distribution of the inside electric current of battery, and then lead to the inconsistent of the inside decay of battery, seriously influence lithium ion battery's life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium ion battery module aluminum sheet formula double row heat abstractor to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a double heat abstractor of lithium ion battery module aluminum sheet formula, includes roof-rack and chassis four lithium cells are installed to vertical equidistance in roof-rack and chassis middle part, and current conducting plate and roof-rack fixed connection are passed through at every lithium cell top, and current conducting plate and chassis fixed connection are passed through to every lithium cell bottom, the current conducting plate plays the supporting role to middle part lithium cell simultaneously, is provided with the spacer groove at two adjacent lithium cell middle parts, at the inside vertical first radiator unit of installing of spacer groove, installs four second radiator units in the equal equidistance of left and right sides lithium cell outside roof-rack top middle part still is provided with third radiator unit.

As a further aspect of the present invention: the first heat dissipation assembly comprises a connecting frame and a middle heat dissipation fin, the middle heat dissipation fin is fixedly connected with the top frame through the top connecting frame, and the middle heat dissipation fin is fixedly connected with the bottom frame through the bottom connecting frame.

As a further aspect of the present invention: the left and right sides second radiator unit all includes four cylinder radiating fin, miniature electronic connection pivot and connection pedestal the roof-rack left and right sides all is provided with a spacing, and the equidistance is provided with four fixed slots in every spacing, and miniature electronic connection pivot is installed in the fixed slot, and cylinder radiating fin top is passed through miniature electronic connection pivot and is connected with the roof-rack, and cylinder radiating fin bottom is through connecting pedestal and bottom chassis fixed connection.

As a further aspect of the present invention: the third heat dissipation assembly comprises a fixed frame and a heat dissipation net layer, the fixed frame is arranged in the middle of the top frame, the middle of the fixed frame is of a hollow structure, and the heat dissipation net layer is embedded inside the fixed frame.

As a further aspect of the present invention: the middle radiating fins and the cylindrical radiating fins are made of aluminum alloy materials.

Compared with the prior art, the beneficial effects of the utility model are that: this device reasonable in design, inside is provided with first heat abstractor, second heat abstractor and third heat abstractor, effectively guarantees the radiating effect of each direction of lithium ion battery, promotes the inside current distribution of battery, further improves the life of battery, has higher practicality and market prospect, is fit for using widely on a large scale.

Drawings

Fig. 1 is a schematic diagram of an internal structure of an aluminum sheet type double-row heat dissipation device of a lithium ion battery module.

Fig. 2 is a top view of an aluminum sheet type double-row heat sink for a lithium ion battery module.

Fig. 3 is a schematic structural diagram of a cylindrical heat dissipation fin in an aluminum sheet type double-row heat dissipation device of a lithium ion battery module.

In the figure: the heat dissipation structure comprises a top frame 1, a bottom frame 2, a lithium battery 3, a conductive plate 4, a spacing groove 5, a first heat dissipation assembly 6, a second heat dissipation assembly 7, a third heat dissipation assembly 8, a connecting frame 601, a middle heat dissipation fin 602, a cylindrical heat dissipation fin 701, a miniature electric connecting rotating shaft 702, a connecting shaft frame 703, a limiting frame 704, a fixing groove 705, a fixing frame 801 and a heat dissipation net layer 802.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-3, in the embodiment of the present invention, an aluminum sheet type double-row heat dissipation device for lithium ion battery modules comprises a top frame 1 and a bottom frame 2, wherein four lithium batteries 3 are vertically and equidistantly installed in the middle of the top frame 1 and the bottom frame 2, the top of each lithium battery 3 is fixedly connected with the top frame 1 through a conductive plate 4, the bottom of each lithium battery 3 is fixedly connected with the bottom frame 2 through a conductive plate 4, the conductive plate 4 simultaneously supports the middle lithium battery 3, a spacing groove 5 is arranged in the middle of two adjacent lithium batteries 3, a first heat dissipation assembly 6 is vertically installed in the spacing groove 5, four second heat dissipation assemblies 7 are equally and equidistantly installed outside the lithium batteries 3 on the left and right sides, a third heat dissipation assembly 8 is further installed in the middle of the top frame 1, a PLC logic controller (not shown in the figure) for controlling the internal electrical equipment of the device is electrically installed in the device, the PLC logic controller is internally provided with a wireless transmitting module, the rest of electrical devices in the device are internally provided with wireless receiving modules which are matched for use, and the wireless transmitting module is matched with the wireless receiving modules to complete the control of the PLC logic controller on electrical equipment of the device.

Example two:

in this embodiment, the first heat dissipation assembly 6 includes a connecting frame 601 and a middle heat dissipation fin 602, the middle heat dissipation fin 602 is fixedly connected to the top frame 1 through the top connecting frame 601, the middle heat dissipation fin 602 is fixedly connected to the bottom frame 2 through the bottom connecting frame 601, and the first heat dissipation assembly 6 can effectively dissipate heat inside the lithium battery 3; the second heat dissipation assemblies 7 on the left side and the right side respectively comprise four cylindrical heat dissipation fins 701, a miniature electric connection rotating shaft 702 and a connecting shaft bracket 703, the left side and the right side of the top bracket 1 are respectively provided with a limiting bracket 704, four fixing grooves 705 are equidistantly arranged in each limiting bracket 704, the miniature electric connection rotating shaft 702 is installed in the fixing grooves 705, the tops of the cylindrical heat dissipation fins 701 are connected with the top bracket 1 through the miniature electric connection rotating shaft 702, the bottoms of the cylindrical heat dissipation fins 701 are fixedly connected with the bottom chassis 2 through the connecting shaft bracket 703, the cylindrical heat dissipation fins 701 are controlled by an internal PLC (programmable logic controller), and are regularly rotated through the miniature electric connection rotating shaft 702, so that the contact surface with an inner lithium battery is periodically changed, long-time contact heat accumulation is prevented, and; the third heat dissipation assembly 8 comprises a fixed frame 801 and a heat dissipation net layer 802, the fixed frame 801 is arranged in the middle of the top frame 1, the middle of the fixed frame 801 is of a hollow structure, and the heat dissipation net layer 802 is embedded in the fixed frame 801; the central radiating fin 602 and the cylindrical radiating fin 701 are both made of aluminum alloy.

The utility model discloses a theory of operation is: the first heat dissipation component 6 is arranged at the interval position in the middle of the adjacent lithium batteries 3 and can effectively dissipate heat of the inside of the lithium batteries 3, the second heat dissipation component 6 is arranged outside the left side and the right side of the device and can effectively dissipate heat of the inside of the outside lithium batteries 3, the cylindrical heat dissipation fins 701 are controlled by an internal PLC (programmable logic controller), and are periodically rotated through the miniature electric connection rotating shaft 702 to periodically change the contact surface with the inside lithium batteries so as to prevent long-time contact heat accumulation and influence the heat dissipation effect, meanwhile, the top of the device is provided with the third heat dissipation component 8, the third heat dissipation component 8 comprises a fixed frame 801 and a heat dissipation net layer 802, the fixed frame 801 is arranged in the middle of the top frame 1, the middle of the fixed frame 801 is of a hollow structure, the middle heat dissipation fins 602 and the cylindrical heat dissipation fins 701 are made of aluminum alloy materials, and, the lithium battery radiating effect is guaranteed in all directions.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An aluminum sheet type double-row heat dissipation device of a lithium ion battery module comprises a top frame (1) and a bottom frame (2), four lithium batteries (3) are vertically arranged in the middle of the top frame (1) and the bottom frame (2) at equal intervals, it is characterized in that the top of each lithium battery (3) is fixedly connected with the top frame (1) through a current-conducting plate (4), the bottom of each lithium battery (3) is fixedly connected with the bottom frame (2) through the current-conducting plate (4), the current-conducting plate (4) simultaneously plays a supporting role for the middle lithium battery (3), the middle parts of two adjacent lithium batteries (3) are provided with spacing grooves (5), first heat dissipation assemblies (6) are vertically arranged in the spacing grooves (5), four second heat dissipation assemblies (7) are equally arranged outside the lithium batteries (3) at the left side and the right side, and a third heat dissipation assembly (8) is also arranged in the middle of the top frame (1).

2. The aluminum-sheet type double-row heat dissipation device of the lithium ion battery module according to claim 1, wherein the first heat dissipation assembly (6) comprises a connecting frame (601) and a middle heat dissipation fin (602);

the middle radiating fins (602) are fixedly connected with the top frame (1) through the top connecting frame (601), and the middle radiating fins (602) are fixedly connected with the bottom frame (2) through the bottom connecting frame (601).

3. The aluminum sheet type double-row heat dissipation device of the lithium ion battery module according to claim 2, wherein the second heat dissipation assemblies (7) on the left and right sides each comprise four cylindrical heat dissipation fins (701), a miniature electric connection rotating shaft (702) and a connection shaft bracket (703);

the left side and the right side of the top frame (1) are respectively provided with a limiting frame (704), four fixing grooves (705) are formed in each limiting frame (704) at equal intervals, the miniature electric connecting rotating shaft (702) is installed in the fixing grooves (705), the top of the cylindrical heat radiating fin (701) is connected with the top frame (1) through the miniature electric connecting rotating shaft (702), and the bottom of the cylindrical heat radiating fin (701) is fixedly connected with the bottom underframe (2) through the connecting shaft frame (703).

4. The aluminum sheet type double-row heat sink of lithium ion battery module as claimed in claim 3, wherein the third heat sink assembly (8) comprises a fixing frame (801) and a heat sink net layer (802);

the fixed frame (801) is arranged in the middle of the top frame (1), and the heat dissipation net layer (802) is embedded in the fixed frame (801).

5. The aluminum sheet type double-row heat dissipation device of the lithium ion battery module according to claim 4, wherein the middle heat dissipation fin (602) and the cylindrical heat dissipation fin (701) are made of an aluminum alloy material.