Lithium iron phosphate battery pack
Technical Field
The utility model relates to the field of lithium iron phosphate battery packs, in particular to a lithium iron phosphate battery pack.
Background
The lithium iron phosphate is a lithium ion battery electrode material, and has a chemical formula of LiFePO4, and is mainly used for various lithium ion batteries, and when a plurality of battery monomers form a battery pack, electrolyte is arranged in the lithium battery. After repeated discharging, part of electrolyte is decomposed to generate gas, so that the battery expands, the volume of the battery is increased when the battery is charged and discharged, the battery is arranged in the box body to form a battery pack, the battery is contacted with the box, and the deformation of the box body is caused when the volume of the battery is increased, so that the sealing protection effect of the box body on the battery is affected.
In searching Chinese patent (application number: CN 202223238749.9) a lithium iron phosphate battery pack comprises a box body, a plurality of elastic parts are fixedly connected to the inner walls of two sides of the box body at equal distances, a plurality of battery monomers are placed in the box body and are abutted to the elastic parts, a box cover is fixedly connected to the box body, a plurality of elastic blocks are fixedly connected to the box cover at equal intervals, and the elastic blocks can be abutted to the battery monomers respectively. The utility model prevents the case from deforming, thereby ensuring the sealing effect and preventing the entry of moisture.
The above-mentioned patent is although can prevent the box and take place the circumstances of deformation to guaranteed sealed effect, prevented the entering of moisture, but the device is when using, and stability is poor and unable in time to know the function of battery package information, can't be applicable to present trade demand, and the thermal diffusivity is not good simultaneously, and inside battery core is easy to cause the short circuit with the dust contact. Therefore, it is necessary to invent a lithium iron phosphate battery pack to solve the above problems.
Disclosure of utility model
The utility model aims to provide a lithium iron phosphate battery pack to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lithium iron phosphate battery package, includes the box lower cover, box lower cover top is equipped with the box upper cover, the louvre has been seted up to both sides around the box lower cover, box upper cover top one side is connected with the ventilation valve, the inside battery core that is equipped with of box lower cover, the battery core is equipped with first heat conduction guard plate, second heat conduction guard plate all around, first heat conduction guard plate with the draw-in groove has been seted up to the second heat conduction guard plate, second heat conduction guard plate one side is connected with the stopper all around.
Preferably, the left side and the right side of the lower cover of the box body are connected with rotating shaft connecting seats, and handles are connected to the rotating shaft connecting seats.
Preferably, screw holes are formed in the front side and the rear side of the upper cover of the box body, bolts are installed in the screw holes, and one side of each bolt is connected with a handle.
Preferably, the cooling fins are connected to the periphery of the inner part of the lower cover of the box body.
Preferably, one side of the upper cover of the box body is connected with a display screen.
Preferably, a heat conducting silica gel piece is arranged on the inner side of the clamping groove, and the heat conducting silica gel piece is glued with the clamping groove.
Preferably, a communication template is connected to the second heat conduction protection plate in the middle of the limiting block.
The utility model has the technical effects and advantages that:
1. Through setting up battery core, first heat conduction guard plate, the second heat conduction guard plate, the draw-in groove, heat conduction silica gel piece, the stopper, the fin, the louvre, box lower cover and box upper cover, imbed the battery core in the draw-in groove of first heat conduction guard plate and second heat conduction guard plate, with the inboard heat conduction silica gel piece contact of draw-in groove, better heat dissipation effect has been realized, simultaneously also improved the joint strength between battery core and first heat conduction guard plate and the second heat conduction guard plate, and four corners of second heat conduction guard plate all are equipped with the stopper, avoid the battery core to produce and rock, improve the stability under the lithium iron phosphate battery package operating condition, the rethread fin transmits the heat to in the air, because there is great heat dissipation gap between each fin, and set up the louvre in the box lower cover, thereby can improve the circulation area and the circulation rate of air, improve the heat exchange efficiency between air and the fin, the radiating effect of whole battery package has been improved, the right-hand member of box upper cover is equipped with the ventilation valve of intercommunication, increase whole explosion-proof function;
2. Through setting up box upper cover, box lower cover, battery core, second heat conduction guard plate, communication template, display screen, handle and pivot connecting seat, because box upper cover and box lower cover all adopt the panel beating material, improve holistic mechanical strength, and then increase the guard action to the battery core, and box upper cover lower extreme and box lower cover's upper end all are equipped with the sealing washer, increase holistic leakproofness, and the second heat conduction guard plate is equipped with communication template, the upper surface of box upper cover is equipped with the display screen with communication template electric connection, can show the information in the battery core module, the user of being convenient for first time grasp the useful information of battery package; the handle is arranged at the two ends of the rotating shaft inside the rotating shaft connecting seat through the connecting rod, and the anti-slip leather sheath is arranged on the outer surface of the handle, so that the situation of slipping during carrying can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a lithium iron phosphate battery pack according to the present utility model.
Fig. 2 is a schematic top view of a lithium iron phosphate battery pack according to the present utility model.
Fig. 3 is a schematic side view of a lithium iron phosphate battery pack according to the present utility model.
Fig. 4 is an exploded view of a lithium iron phosphate battery pack according to the present utility model.
In the figure: 1. a lower cover of the box body; 2. a case upper cover; 3. a rotating shaft connecting seat; 4. a handle; 5. a heat radiation hole; 6. a handle; 7. a ventilation valve; 8. a display screen; 9. a bolt; 10. a heat sink; 11. a first thermally conductive shield; 12. a second thermally conductive shield; 13. a battery core; 14. a limiting block; 15. a communication template; 16. a clamping groove; 17. a thermally conductive silicone sheet; 18. and (3) a threaded hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a lithium iron phosphate battery pack as shown in figures 1-4, which comprises a lower box cover 1, wherein an upper box cover 2 is arranged above the lower box cover 1, radiating holes 5 are formed in the front side and the rear side of the lower box cover 1, one side above the upper box cover 2 is connected with an air ventilation valve 7, the right end of the upper box cover 2 is provided with a communicated air ventilation valve 7, and the integral explosion-proof function is increased; the battery core 13 is arranged inside the lower cover 1 of the box body, the first heat conduction protection plate 11 and the second heat conduction protection plate 12 are arranged around the battery core 13, the clamping groove 16 is formed in the first heat conduction protection plate 11 and the second heat conduction protection plate 12, the limiting block 14 is connected to one side of the second heat conduction protection plate 12, the battery core 13 is embedded into the clamping groove 16 of the first heat conduction protection plate 11 and the second heat conduction protection plate 12 and is in contact with the heat conduction silica gel sheet 17 on the inner side of the clamping groove 16, so that better heat conduction and radiation effects are achieved, and meanwhile, the connection strength between the battery core 13 and the first heat conduction protection plate 11 and the second heat conduction protection plate 12 is also improved.
The left and right sides of the box lower cover 1 are connected with a rotating shaft connecting seat 3, the rotating shaft connecting seat 3 is connected with a handle 4, the rotating shaft connecting seat 3 is connected with the left and right sides of the box lower cover 1, the rotating shaft connecting seat 3 is connected with the handle 4, and the outer surface of the handle 4 is provided with an anti-slip leather sheath, so that the situation of slipping during carrying can be avoided.
Screw holes 18 are formed in the front side and the rear side of the upper cover 2 of the box body, bolts 9 are installed in the screw holes 18, one side of each bolt 9 is connected with a handle 6, wherein the stability of the lithium iron phosphate battery pack in the working state is improved through the fact that the screw holes 18 are formed in the front side and the rear side of the upper cover 2 of the box body, the bolts 9 are installed in the screw holes 18, and one side of each bolt 9 is connected with the handles 6.
The cooling fins 10 are connected around the inside of the lower cover 1 of the box body, wherein the cooling fins 10 are connected around the inside of the lower cover 1 of the box body, and heat can be transferred into the air through the cooling fins 10.
The display screen 8 is connected to one side of the upper box cover 2, wherein the display screen 8 is connected to one side of the upper box cover 2, and the display screen 8 electrically connected with the communication template 15 is arranged on the upper surface of the upper box cover 2, so that information in the battery cell module can be displayed, and a user can master useful information of the battery pack at the first time conveniently.
The inside of draw-in groove 16 is equipped with heat conduction silica gel piece 17, and heat conduction silica gel piece 17 glues with draw-in groove 16, and wherein through being equipped with heat conduction silica gel piece 17 in the inboard of draw-in groove 16, heat conduction silica gel piece 17 glues with draw-in groove 16, can imbed the draw-in groove 16 of first heat conduction guard plate 11 and second heat conduction guard plate 12 with battery core 13, contacts with the heat conduction silica gel piece 17 of draw-in groove 16 inboard, has realized better heat conduction radiating effect, has also improved the joint strength between battery core 13 and first heat conduction guard plate 11 and the second heat conduction guard plate 12 simultaneously.
The middle of the limiting block 14 is connected with the communication template 15 on the second heat conduction protection plate 12, wherein the communication template 15 is connected on the second heat conduction protection plate 12 through the middle of the limiting block 14, the upper surface of the box upper cover 2 is provided with the display screen 8 electrically connected with the communication template 15, information in the battery cell module can be displayed, and a user can grasp useful information of the battery pack at the first time conveniently.
Working principle: when the device is used, as the first heat conduction protection plate 11 and the second heat conduction protection plate 12 are respectively positioned at two ends of the battery core 13, the battery core 13 is protected, and meanwhile, the heat conduction and heat dissipation effects are achieved, and meanwhile, dust is prevented from contacting with the battery core 13, so that the occurrence of a short circuit phenomenon is effectively avoided, and the service life of the lithium iron phosphate battery pack is prolonged; then the battery core 13 is embedded into the clamping grooves 16 of the first heat conduction protection plate 11 and the second heat conduction protection plate 12 and is in contact with the heat conduction silica gel sheet 17 at the inner side of the clamping grooves 16, so that better heat conduction and heat dissipation effects are achieved, meanwhile, the connection strength between the battery core 13 and the first heat conduction protection plate 11 and the second heat conduction protection plate 12 is improved, limiting blocks 14 are arranged at four corners of the second heat conduction protection plate 12, the battery core 13 is prevented from shaking, the stability of the lithium iron phosphate battery pack in the working state is improved, heat is transferred to the air through the plurality of radiating fins 10, and due to the fact that larger heat dissipation gaps exist between the radiating fins 10, heat dissipation holes 5 are formed in the lower cover 1 of the box, the circulation area and the circulation speed of the air are improved, the heat exchange efficiency between the air and the radiating fins 10 is improved, namely the heat dissipation effect of the whole battery pack is improved, meanwhile, the right end of the upper cover 2 of the box is provided with the communicated ventilation valve 7, and the whole explosion-proof function is improved; because the upper cover 2 and the lower cover 1 of the box body are made of metal plates, the overall mechanical strength is improved, the protection effect on the battery core 13 is further improved, the lower ends of the upper cover 2 and the upper end of the lower cover 1 of the box body are respectively provided with a sealing ring, the overall tightness is improved, the second heat conduction protection plate 12 is provided with a communication template 15, the upper surface of the upper cover 2 of the box body is provided with a display screen 8 electrically connected with the communication template 15, information in the battery core module can be displayed, and a user can master useful information of the battery pack at first time conveniently; the handle 4 is arranged at the two ends of the rotating shaft inside the rotating shaft connecting seat 3 through the connecting rod, and the anti-slip leather sheath is arranged on the outer surface of the handle 4, so that the situation of slipping during carrying can be avoided.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.