CN219759817U - Long-acting lithium iron phosphate battery pack - Google Patents
Long-acting lithium iron phosphate battery pack Download PDFInfo
- Publication number
- CN219759817U CN219759817U CN202320857466.8U CN202320857466U CN219759817U CN 219759817 U CN219759817 U CN 219759817U CN 202320857466 U CN202320857466 U CN 202320857466U CN 219759817 U CN219759817 U CN 219759817U
- Authority
- CN
- China
- Prior art keywords
- iron phosphate
- lithium iron
- battery
- long
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 230000017525 heat dissipation Effects 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 2
- 238000007599 discharging Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052744 lithium Inorganic materials 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a long-acting lithium iron phosphate battery pack, relates to the technical field of lithium battery pack structures, and solves the problems that a lithium iron phosphate battery is small in charging and discharging temperature range and is not suitable for working under severe temperature environment. The battery pack comprises a shell and a plurality of battery units in the shell, wherein an upper limit frame and a lower limit frame are arranged in the shell, the upper end and the lower end of each battery unit are respectively arranged in the upper limit frame and the lower limit frame, adjacent battery units are limited to be spaced, one side or two opposite sides in the shell are provided with heating and radiating devices, and the heating and radiating devices are opposite to the spacing direction between the battery units. The internal heating or heat dissipation efficiency can be improved, the working temperature inside the battery pack can be conveniently controlled, and the effect of avoiding irreparable damage to the lithium iron phosphate battery caused by charge and discharge outside the working temperature range is achieved.
Description
Technical Field
The utility model relates to the technical field of lithium battery pack structures, in particular to a long-acting lithium iron phosphate battery pack.
Background
The lithium iron phosphate battery is a lithium ion battery which uses lithium iron phosphate (LiFePO 4) as a positive electrode material and carbon as a negative electrode material, and has the advantages of high working voltage, high energy density, long cycle life, good safety performance, small self-discharge rate and no memory effect.
However, the lithium iron phosphate battery has a small charging and discharging temperature range, is not suitable for working under severe temperature conditions, and otherwise affects the reliability and the service life, so that for long-term use, a lithium iron phosphate battery is needed to quickly control the internal heating or cooling, and avoid irreparable damage to the lithium iron phosphate battery due to charging and discharging outside the working temperature range, thereby realizing long-term use.
Disclosure of Invention
The utility model aims to provide a long-acting lithium iron phosphate battery pack, which can improve internal heating or heat dissipation efficiency, is convenient to control the working temperature in the battery pack and avoids irreparable damage to a lithium iron phosphate battery caused by charging and discharging outside the working temperature range.
The technical aim of the utility model is realized by the following technical scheme:
the utility model provides a lithium iron phosphate group battery that long-term used, includes a plurality of battery cells in casing and the casing, has placed spacing frame and lower spacing frame in the casing, and both ends are placed respectively in spacing frame and lower spacing frame about each battery cell, and it is interval to restrict between the adjacent battery cell, and one side or the relative both sides in the casing are equipped with heating and heat abstractor, and heating and heat abstractor are just to the interval direction between the battery cell.
Further, the lower limit frame comprises a plate body, a placement groove matched with the battery unit is formed in the plate body, and the periphery of the placement groove is matched with the shape of the inner bottom of the shell.
Furthermore, the upper limit frame comprises a frame body formed by splicing a plurality of connecting rods, a plurality of abutting wheels are connected to the lower side of the frame body, and the abutting wheels are abutted between the adjacent battery units to control the gaps of the adjacent battery units.
Furthermore, the lower side of the frame body is also connected with a positioning edge, and the positioning edge is abutted to the outer side of the battery unit.
Furthermore, the lower end of the positioning edge is tilted outwards.
Furthermore, the outer side of the frame body is also connected with a plurality of mounting edges which are abutted against the inner side of the shell.
Further, the outer side of the mounting edge is tilted upwards.
Furthermore, the upper side of the frame body is provided with a cover plate or is connected with a plurality of baffles, the cover plate or the baffles are arranged between adjacent battery units in a blocking way, and heat dissipation holes are formed in the cover plate or the baffles.
In summary, the utility model has the following beneficial effects:
on one hand, the corresponding upper limit frame and lower limit frame are replaced conveniently, and different battery unit sizes are placed and installed in the shell, so that different battery units share one shell and a heating and radiating device, and the universality is improved;
on the other hand, through last spacing frame and spacing frame down, control the interval between the battery unit, make things convenient for the heating heat abstractor to carry out rapid heating or heat dissipation to each battery unit, avoid charging and discharging outside operating temperature scope to produce unrepairable harm to lithium iron phosphate battery to realize its long-term use.
Drawings
FIG. 1 is a schematic view of the internal structure of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
fig. 3 is a schematic view of the present utility model after concealing the baffle.
In the figure, 1, a shell; 2. a battery unit; 3. an upper limit frame; 31. a frame body; 32. an abutment wheel; 33. positioning edges; 34. a mounting edge; 35. a baffle; 36. a heat radiation hole; 4. and a lower limit frame.
Detailed Description
The following description of the embodiments of the utility model is further illustrated in the accompanying drawings, and the examples are not meant to limit the utility model.
The utility model provides a lithium iron phosphate group battery that long-term used, as shown in fig. 1, including casing 1 and a plurality of lithium iron phosphate battery cell 2 in the casing 1, establish ties or parallelly connected through the connection piece between the lithium iron phosphate battery cell 2, place spacing frame 3 and spacing frame 4 down in the casing 1, both ends are placed respectively in spacing frame 3 and spacing frame 4 down about each battery cell 2, restrict to having the interval between the adjacent battery cell 2, conveniently heat or dispel the heat.
As shown in fig. 1, one side inside the case 1 is provided with a heating and heat dissipating device, which is directed to the spacing direction between the battery cells 2; in this embodiment, one side of casing 1 length direction is equipped with ventilation tripe, and heating and heat abstractor are installed through the screw to opposite one side, and ventilation tripe is connected in heating and heat abstractor outside, and the inboard sets up the filter screen, internally mounted fan and heater strip, and casing 1 internal fixation temperature-sensing device, when the temperature is too high, the fan opens alone, carries out ventilation and heat dissipation, and when too low, heater strip and fan open in step, through inside hot-blast heating casing 1.
As shown in fig. 1, the lower limit frame 4 includes a plate body, on which a placement groove adapted to the battery unit 2 is formed, the periphery of which is adapted to the shape of the inner bottom of the housing 1, and the plate body is made of an elastic or porous material, so as to improve the effects of shock absorption, heat insulation, and the like.
As shown in fig. 1 and 2, the upper limit frame 3 includes a frame 31 welded by a plurality of transverse and longitudinal connecting rods, and a plurality of groups of abutting wheels 32/spheres are connected to the lower side of the frame 31 through the connecting rods, and each group of abutting wheels 32 abuts between the corresponding adjacent battery units 2 to control the gaps thereof.
As shown in fig. 1 and 3, the lower side of the frame 31 is also connected with a positioning edge 33, and the positioning edge 33 is abutted to the outer side of the battery unit 2; the lower end of the positioning edge 33 is tilted outwards; the outer side of the frame body 31 is also connected with a plurality of mounting edges 34, the mounting edges 34 are abutted against the inner side of the shell 1, and the outer sides of the mounting edges 34 are tilted upwards;
in this embodiment, the positioning edge 33 is provided on four sides, the mounting edges 34 at two ends are separately provided, the mounting edges 34 at two sides are integrally connected to the outer side of the positioning edge 33, that is, the positioning edge 33 and the mounting edges 34 at two sides are integrally connected to form an upper rectangular shape, and the lower V-shape is formed, so that two sides of the V-shape are respectively abutted between the end of the battery unit 2 and the inner side surface of the housing 1.
As shown in fig. 2, the upper side of the frame 31 is connected with a plurality of baffles 35, the cover plate or baffles 35 are blocked between adjacent battery units 2, and the cover plate or baffles 35 are provided with heat dissipation holes 36 to improve the overall heat dissipation effect of the device, and the top of the shell 1 can also be connected with a structure such as a cover plate with holes, and the like to be abutted against the upper side of the frame 31 so as to realize the internal dust prevention; for the frame body 31 without the cover plate, the periphery of the shell 1 is fixed with the frame body 31 by arranging screws or is connected with an elastic positioning block, and the periphery of the upper side of the frame body 31 is abutted below the elastic positioning block so as to improve the positioning and fixing effects.
The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model, and those skilled in the art may make various modifications and equivalents within the spirit and scope of the utility model, and such modifications and equivalents should also be considered as falling within the scope of the technical solution of the present utility model.
Claims (8)
1. A long-acting lithium iron phosphate battery pack is characterized in that: the battery pack comprises a shell and a plurality of battery units in the shell, wherein an upper limit frame and a lower limit frame are arranged in the shell, the upper end and the lower end of each battery unit are respectively arranged in the upper limit frame and the lower limit frame, adjacent battery units are limited to be spaced, one side or two opposite sides in the shell are provided with heating and radiating devices, and the heating and radiating devices are opposite to the spacing direction between the battery units.
2. A long-life lithium iron phosphate battery according to claim 1, wherein: the lower limit frame comprises a plate body, a placement groove matched with the battery unit is formed in the plate body, and the periphery of the placement groove is matched with the shape of the inner bottom of the shell.
3. A long-acting lithium iron phosphate battery according to claim 1 or 2, characterized in that: the upper limit frame comprises a frame body formed by splicing a plurality of connecting rods, a plurality of abutting wheels are connected to the lower side of the frame body, and the abutting wheels are abutted between adjacent battery units to control the gaps of the adjacent battery units.
4. A long-life lithium iron phosphate battery according to claim 3, wherein: the lower side of the frame body is also connected with a positioning edge which is abutted to the outer side of the battery unit.
5. The long-life lithium iron phosphate battery of claim 4, wherein: and the lower end of the positioning edge is tilted outwards.
6. A long-life lithium iron phosphate battery according to claim 3, wherein: the frame body outside still connects a plurality of installation limit, and the installation limit butt is in the casing inboard.
7. The long-life lithium iron phosphate battery of claim 6, wherein: and the outer side of the mounting edge is tilted upwards.
8. A long-life lithium iron phosphate battery according to claim 3, wherein: the upper side of the frame body is provided with a cover plate or is connected with a plurality of baffles, the cover plate or the baffles are arranged between adjacent battery units in a blocking way, and the cover plate or the baffles are provided with heat dissipation holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320857466.8U CN219759817U (en) | 2023-04-18 | 2023-04-18 | Long-acting lithium iron phosphate battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320857466.8U CN219759817U (en) | 2023-04-18 | 2023-04-18 | Long-acting lithium iron phosphate battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219759817U true CN219759817U (en) | 2023-09-26 |
Family
ID=88071569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320857466.8U Active CN219759817U (en) | 2023-04-18 | 2023-04-18 | Long-acting lithium iron phosphate battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219759817U (en) |
-
2023
- 2023-04-18 CN CN202320857466.8U patent/CN219759817U/en active Active
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| GR01 | Patent grant |