CN117594911B - Photovoltaic energy storage lithium battery pack - Google Patents
Photovoltaic energy storage lithium battery pack Download PDFInfo
- Publication number
- CN117594911B CN117594911B CN202410069838.XA CN202410069838A CN117594911B CN 117594911 B CN117594911 B CN 117594911B CN 202410069838 A CN202410069838 A CN 202410069838A CN 117594911 B CN117594911 B CN 117594911B
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- shell
- groove
- lithium battery
- heat dissipation
- energy storage
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 69
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000004146 energy storage Methods 0.000 title claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims description 16
- 230000009467 reduction Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 239000003063 flame retardant Substances 0.000 claims description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to the field of lithium battery packs, in particular to a photovoltaic energy storage lithium battery pack, which comprises a shell, wherein a shell cover is detachably arranged at the top of the shell; the device also comprises a heat dissipation mechanism and an air flow distribution mechanism; a plurality of -shaped placing frames for placing lithium batteries are arranged in the shell in an equidistant sliding manner, and the outer walls of the two ends of the shell are respectively provided with an air inlet groove and an air outlet; the heat dissipation mechanism is arranged in the shell and used for cooling the lithium battery; the air flow distribution mechanism is arranged in the shell and can move up and down along with the -shaped placing frames in sequence; through the cooperation of cooling mechanism and air current distribution mechanism, make a plurality of shape place the frame and can form "snakelike runner" that a direction clearance nature changes, radiator fan carries the air current to "snakelike runner" in, not only can carry out comprehensive cooling to the lithium cell, can also pass through the gas outlet with inside dust and the impurity of casing and discharge.
Description
Technical Field
The invention relates to the field of lithium battery packs, in particular to a photovoltaic energy storage lithium battery pack.
Background
The lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution, and along with the widespread application of electrical equipment in families, miniaturized equipment is increasingly used, the demand for the battery is also increasing, and a lithium battery pack occupies an important position in the battery. In the process of long-time working, if the battery power of the lithium battery pack in the current battery box is too high, the lithium battery is easy to generate overheat phenomenon, and the lithium battery and the battery box are burnt out seriously.
At present, in order to improve the radiating effect of the lithium battery in the battery box, a plurality of radiating holes are generally formed in the battery box to ventilate the lithium battery, and although dust can be effectively prevented from entering the battery box through a dust screen on the radiating holes, small particles in the dust can enter the battery box through the radiating holes through the dust screen, so that the dust is easily accumulated on the lithium battery, and the service life of the lithium battery is greatly influenced.
Disclosure of Invention
To the problem that prior art exists, provide a photovoltaic energy storage lithium cell group, through shape place frame, casing, axis of rotation and radiator fan's cooperation, under the rotation of axis of rotation, sector gear and the teeth of a cogwheel that corresponds oval standing groove mutually support to make a plurality of shape place the frame and can form "snakelike runner" that the direction clearance nature changes, radiator fan carries the air current to "snakelike runner" in, not only can carry out comprehensive cooling to the lithium cell, can also pass through the gas outlet with inside dust and the impurity of casing and discharge.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
a photovoltaic energy storage lithium battery pack comprises a shell, wherein a shell cover is detachably arranged at the top of the shell; the device also comprises a heat dissipation mechanism and an air flow distribution mechanism; a plurality of -shaped placing frames for placing lithium batteries are equidistantly arranged in the shell, guide grooves are formed in the outer walls of two sides of each -shaped placing frame, a plurality of guide strips matched with the guide grooves are equidistantly arranged on the inner walls of two sides of the shell along the length direction, the guide strips can be slidably arranged in the corresponding guide grooves, the opening ends of the -shaped placing frames face the direction of the shell cover, and a lower pressing plate for positioning the lithium batteries is hinged to the inner wall of one side of the upper end of each -shaped placing frame; an air inlet groove is formed in the outer wall of one end of the shell along the length direction, and a dust screen is arranged in the air inlet groove; an air outlet is formed in the bottom of the outer wall of one side of the shell, which is far away from the air inlet groove; the heat dissipation mechanism is arranged in the shell and used for cooling the lithium battery; the heat dissipation mechanism comprises a heat dissipation motor and a heat dissipation fan; the heat dissipation motor is arranged on the inner wall of one side of the shell close to the air inlet groove, and the heat dissipation fan is arranged on the motor shaft of the heat dissipation motor; an oval placing groove is formed in the center of the lower end of each -shaped placing frame, a plurality of gear teeth are formed in the inner walls of two sides of each oval placing groove along the length direction, and an air flow distribution mechanism is arranged in the shell and can enable a plurality of -shaped placing frames to move up and down in sequence along with rotation of the cooling fan; the air flow distribution mechanism comprises a rotating shaft which is rotatably arranged inside the shell, the rotating shaft sequentially penetrates through the oval placement grooves of the placement frames, a plurality of sector gears are arranged on the rotating shaft along the length direction, and the sector gears are meshed with gear teeth in the corresponding oval placement grooves.
Preferably, the airflow distribution mechanism further comprises a reduction gear set, a synchronous wheel and a synchronous belt; the speed reducing gear set is in transmission connection with a motor shaft of the heat dissipation motor, one end of the rotating shaft, which is close to the speed reducing gear set, is provided with a synchronous wheel, and the synchronous wheel is in transmission connection with the speed reducing gear set through a synchronous belt.
Preferably, one end of each lower pressing plate far away from the hinging part is provided with a moving groove, a clamping block is arranged in the moving groove in a sliding manner, a pushing block is arranged on each clamping block, a strip-shaped avoiding groove for avoiding the pushing block is arranged on each lower pressing plate, the strip-shaped avoiding groove is communicated with the corresponding moving groove, a pushing spring is arranged between the clamping block and the inner wall of the bottom of the moving groove, and one side inner wall of each -shaped placing frame far away from the corresponding lower pressing plate is provided with a clamping groove matched with the clamping block.
Preferably, each lower pressing plate is further provided with a flexible flame-retardant strip.
Preferably, a resistance heating wire is further arranged on one side of the inner wall of the shell, which is close to the cooling fan.
Preferably, the air inlet groove is in an inverted V shape.
Preferably, the outer wall of one side of the shell close to the air outlet is provided with a rectangular groove, the rectangular groove is communicated with the air inlet, and a plugging plate is hinged in the rectangular groove.
Preferably, a temperature sensor is also arranged inside the shell.
Preferably, the shell and the shell cover are connected through a plurality of connecting bolts, and mounting holes matched with the connecting bolts are formed in the periphery of the upper portion of the shell.
Compared with the prior art, the beneficial effects of this application are:
1. the utility model discloses a frame, casing, axis of rotation and radiator fan's cooperation are placed through shape, under the rotation of axis of rotation, sector gear mutually support with the teeth of a cogwheel in the corresponding oval standing groove to make a plurality of shape place the frame and can form "snakelike runner" that the direction clearance nature changes, radiator fan carries the air current to "snakelike runner" in, not only can carry out comprehensive cooling to the lithium cell, can also pass through the gas outlet with inside dust and the impurity of casing and discharge.
2. This application passes through the cooperation of fixture block and holding down plate to can make the flexible fire-retardant strip on the holding down plate can contact with the lithium cell, thereby fix the lithium cell, improve the lithium cell and place the stability of frame in-process of rocking at shape.
3. This application is through resistance heater and temperature sensor's cooperation, when the temperature is higher, makes radiator fan rotate through temperature sensor to cool down in to the casing, when the temperature is lower, makes resistance heater generate heat through temperature sensor, thereby ensures to avoid the lithium cell because the low damage of temperature.
Drawings
Fig. 1 is a perspective view of a photovoltaic energy storage lithium battery;
FIG. 2 is a perspective view of a photovoltaic energy storage lithium battery pack with a cap removed;
FIG. 3 is a side view of a photovoltaic energy storage lithium battery;
FIG. 4 is a plan cross-sectional view taken along the direction A-A of FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 4 at B;
FIG. 6 is an enlarged view of a portion of FIG. 4 at C;
FIG. 7 is a partial exploded perspective view of a photovoltaic energy storage lithium battery pack;
FIG. 8 is a partial enlarged view at D in FIG. 7;
fig. 9 is a perspective view of a shaped placement frame in a photovoltaic energy storage lithium battery pack;
fig. 10 is a partial exploded perspective view of a photovoltaic energy storage lithium battery pack.
The reference numerals in the figures are:
1-a housing; 11-a shell cover; 111-connecting bolts; 12- shaped placing frame; 121-a guide groove; 122-a lower platen; 1221-a movement slot; 1222-a cartridge; 1223-push block; 1224-a bar-shaped avoidance groove; 1225-push springs; 1226-flexible flame retardant strips; 123-oval placement slots; 1231-gear teeth; 124-a clamping groove; 13-a guide bar; 14-an air inlet groove; 141-a dust screen; 15-an air outlet; 16-resistance heating wire; 17-rectangular grooves; 171-a plugging plate; 18-a temperature sensor;
2-a heat dissipation mechanism; 21-a heat-dissipating motor; 22-a heat radiation fan;
3-an air flow distribution mechanism; 31-rotating shaft; 32-sector gear; 33-a reduction gear set; 34-synchronizing wheel; 35-synchronous belt;
a 5-lithium battery.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1 to 10, a photovoltaic energy storage lithium battery 4 comprises a shell 1, wherein a shell cover 11 is detachably arranged on the top of the shell 1; the device also comprises a heat dissipation mechanism 2 and an airflow distribution mechanism 3; a plurality of -shaped placing frames 12 for placing the lithium batteries 4 are equidistantly arranged in the shell 1, guide grooves 121 are formed in the outer walls of two sides of each -shaped placing frame 12, a plurality of guide strips 13 matched with the guide grooves 121 are equidistantly arranged on the inner walls of two sides of the shell 1 along the length direction, the guide strips 13 can be slidably arranged in the corresponding guide grooves 121, the opening ends of the -shaped placing frames 12 face the direction of the shell cover 11, and a lower pressing plate 122 for positioning the lithium batteries 4 is hinged to the inner wall of one side of the upper end of each -shaped placing frame 12; an air inlet groove 14 is formed in the outer wall of one end of the shell 1 along the length direction, and a dust screen 141 is arranged in the air inlet groove 14; the bottom of the outer wall of one side of the shell 1 far away from the air inlet groove 14 is provided with an air outlet 15; the heat dissipation mechanism 2 is arranged inside the shell 1 and used for cooling the lithium battery 4; the heat radiation mechanism 2 includes a heat radiation motor 21 and a heat radiation fan 22; the heat dissipation motor 21 is arranged on the inner wall of one side of the shell 1 close to the air inlet groove 14, and the heat dissipation fan 22 is arranged on the motor shaft of the heat dissipation motor 21; an oval placement groove 123 is formed in the center of the lower end of each -shaped placement frame 12, a plurality of gear teeth 1231 are formed in the inner walls of two sides of each oval placement groove 123 along the length direction, and the air flow distribution mechanism 3 is arranged in the shell 1 and can enable the -shaped placement frames 12 to move up and down in sequence along with the rotation of the cooling fan 22; the air flow distribution mechanism 3 includes a rotation shaft 31 rotatably provided inside the housing 1, the rotation shaft 31 sequentially passing through the elliptical placement grooves 123 of the plurality of -shaped placement frames 12, the rotation shaft 31 being provided with a plurality of sector gears 32 in the length direction, the sector gears 32 being engaged with the gear teeth 1231 in the corresponding elliptical placement grooves 123.
The worker opens the shell cover 11, places the lithium battery 4 on the corresponding -shaped placing frame 12, and makes the lower pressing plate 122 contact with the lithium battery 4, so that the assembly of the lithium battery 4 group is completed; when the temperature of the lithium battery 4 is higher, the heat dissipation motor 21 drives the heat dissipation fan 22 to rotate, the heat dissipation fan 22 conveys air outside the shell 1 to the inside of the shell 1 through the air inlet groove 14, and the dust screen 141 is arranged in the air inlet groove 14, so that larger dust can be blocked, and the dust can be prevented from entering the inside of the shell 1; in this process, through the rotation of the rotation shaft 31, the sector gear 32 disposed on the rotation shaft 31 can be meshed with the gear teeth 1231 in the corresponding elliptical placement groove 123, under the cooperation of the guide groove 121 and the guide bar 13, the corresponding placement frame 12 can reciprocate in the vertical direction, the lower pressing bar contacts with the cover 11, the placement frame 12 contacts with the inner wall of the bottom of the casing 1, at this time, a channel for gas to pass through can be formed between the placement frame 12, the lower pressing plate 122 and the casing 1, and between the placement frame 12 and the inner wall of the bottom of the casing 1 in a clearance manner, and the moving directions of the two adjacent placement frames 12 are opposite, the air inlet groove 14, the plurality of placement frames 12 and the air outlet 15 are mutually matched, a "serpentine flow channel" with a direction being changeable in clearance can be formed inside the casing 1, and the gas flows in the casing 1 along the changing "serpentine flow channel" (as shown by the arrow in fig. 4), so that the lithium battery 4 is cooled comprehensively; and shape places frame 12 and carries out the round trip movement in vertical direction, can shake down adhering to with the tiny particle dust on lithium cell 4 surface, and the "snakelike runner" of change can make the air current "opposite flushing" each other in casing 1 inside, can further dash down adhering to the dust on lithium cell 4 surface, makes it discharge through gas outlet 15, avoids the inside dust of casing 1 to remain.
Referring to fig. 2, 4 and 10, the airflow distribution mechanism 3 further includes a reduction gear set 33, a synchronizing wheel 34 and a timing belt 35;
the speed reduction gear set 33 is in transmission connection with a motor shaft of the heat dissipation motor 21, one end of the rotating shaft 31, which is close to the speed reduction gear set 33, is provided with a synchronizing wheel 34, and the synchronizing wheel 34 is in transmission connection with the speed reduction gear set 33 through a synchronizing belt 35.
When the cooling fan 22 rotates, the rotation speed of the rotating shaft 31 is slowed down by the cooperation of the reduction gear set 33 and the synchronous belt 35, so that the moving speed of the -shaped placing frames 12 can be slower, and the situation that the -shaped placing frames 12 are too fast in moving speed and the lithium battery 4 is damaged is avoided.
Referring to fig. 7 to 9, a moving groove 1221 is formed at one end of each lower pressing plate 122 far away from the hinge, a clamping block 1222 is slidably arranged in the moving groove 1221, a pushing block 1223 is arranged on each clamping block 1222, a strip-shaped avoiding groove 1224 for avoiding the pushing block 1223 is formed on each lower pressing plate 122, the strip-shaped avoiding groove 1224 is communicated with the corresponding moving groove 1221, a pushing spring 1225 is arranged between the clamping block 1222 and the inner wall of the bottom of the moving groove 1221, and a clamping groove 124 matched with the clamping block 1222 is formed in the inner wall of one side of each -shaped placing frame 12 far away from the corresponding lower pressing plate 122.
The staff makes the impeller block 1223 drive the fixture block 1222 and move towards the direction away from corresponding draw-in groove 124 through adjusting the impeller block 1223 to make the holding down plate 122 rotate along the articulated position that corresponds, thereby be convenient for the staff to maintain lithium cell 4, when needs are fixed lithium cell 4, in the elastic force effect of the impeller spring 1225, the fixture block 1222 can stretch into draw-in groove 124, can restrict the position of holding down plate 122, thereby restrict the position of lithium cell 4, avoid placing frame 12 removal in-process shape, lithium cell 4 produces rocking.
As shown in fig. 7 and 8, a flexible flame retardant strip 1226 is also provided on each lower platen 122.
By providing the flexible flame retardant strip 1226, not only rigid contact of the lower pressure plate 122 with the lithium battery 4 can be avoided, but also the lithium battery 4 can be made more stable.
As shown in fig. 4 and 10, a resistance heating wire 16 is further provided on the inner wall of the housing 1 near the cooling fan 22.
Through being provided with resistance heater 16, when ambient temperature is lower, heat the gas through resistance heater 16 to ensure the stability of lithium cell 4 group.
Referring to fig. 4, the air intake groove 14 has an inverted V shape.
When the cooling fan 22 is operated, large particle dust and impurities can be accumulated on the dust screen 141 along the air inlet groove 14 of the inverted V shape under the action of suction force, and when the cooling fan 22 is stopped, the large particle dust and impurities can slide down under the action of gravity, thereby avoiding accumulation of the large particle dust and impurities on the dust screen 141.
Referring to fig. 3 to 5, a rectangular groove 17 is formed in the outer wall of one side of the housing 1, which is close to the air outlet 15, the rectangular groove 17 is communicated with the air inlet, and a blocking plate 171 is hinged in the rectangular groove 17.
When the cooling fan 22 works, the air flow can impact the blocking plate 171, so that small particle dust and impurities in the shell 1 can be discharged, and when the cooling fan 22 does not work, the blocking plate 171 can block the plurality of air outlets 15 under the action of gravity, so that dust and impurities can be prevented from entering the shell 1 through the air outlets 15.
As shown in fig. 4, a temperature sensor 18 is also provided inside the housing 1.
Through being provided with warm sensor to can adjust the temperature in the casing 1, when the temperature is higher, make radiator fan 22 rotate through temperature sensor 18, thereby cool down in to casing 1, when the temperature is lower, make resistance heater 16 generate heat through temperature sensor 18, thereby ensure to avoid lithium cell 4 because the damage of low temperature.
Referring to fig. 1 and 2, a housing 1 and a housing cover 11 are connected by a plurality of connecting bolts 111, and mounting holes matched with the connecting bolts 111 are formed around the upper portion of the housing 1.
The shell cover 11 is convenient to disassemble and assemble with the battery box through the connecting bolts 111, so that the lithium battery 4 is convenient to replace and maintain by workers.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A photovoltaic energy storage lithium battery pack comprises a shell, wherein a shell cover is detachably arranged at the top of the shell; the device is characterized by further comprising a heat dissipation mechanism and an air flow distribution mechanism;
a plurality of -shaped placing frames for placing lithium batteries are equidistantly arranged in the shell, guide grooves are formed in the outer walls of two sides of each -shaped placing frame, a plurality of guide strips matched with the guide grooves are equidistantly arranged on the inner walls of two sides of the shell along the length direction, the guide strips can be slidably arranged in the corresponding guide grooves, the opening ends of the -shaped placing frames face the direction of the shell cover, and a lower pressing plate for positioning the lithium batteries is hinged to the inner wall of one side of the upper end of each -shaped placing frame;
an air inlet groove is formed in the outer wall of one end of the shell along the length direction, and a dust screen is arranged in the air inlet groove; an air outlet is formed in the bottom of the outer wall of one side of the shell, which is far away from the air inlet groove; the heat dissipation mechanism is arranged in the shell and used for cooling the lithium battery; the heat dissipation mechanism comprises a heat dissipation motor and a heat dissipation fan;
the heat dissipation motor is arranged on the inner wall of one side of the shell close to the air inlet groove, and the heat dissipation fan is arranged on the motor shaft of the heat dissipation motor;
an oval placing groove is formed in the center of the lower end of each -shaped placing frame, a plurality of gear teeth are formed in the inner walls of two sides of each oval placing groove along the length direction, and an air flow distribution mechanism is arranged in the shell and can enable a plurality of -shaped placing frames to move up and down in sequence along with rotation of the cooling fan; the air flow distribution mechanism comprises a rotating shaft which is rotatably arranged in the shell, one end of the rotating shaft, which is close to the heat dissipation motor, is provided with a synchronous wheel, and the synchronous wheel is in transmission connection with a motor shaft of the heat dissipation motor through a reduction gear set; the axis of rotation passes a plurality of shape oval standing grooves of placing the frame in proper order, and the axis of rotation is provided with a plurality of sector gears along length direction, and sector gear meshes with the teeth of a cogwheel in the corresponding oval standing groove.
2. The photovoltaic energy storage lithium battery pack according to claim 1, wherein one end of each lower pressing plate, which is far away from the hinging position, is provided with a moving groove, a clamping block is arranged in the moving groove in a sliding manner, each clamping block is provided with a pushing block, each lower pressing plate is provided with a strip-shaped avoiding groove for avoiding the pushing block, the strip-shaped avoiding groove is communicated with the corresponding moving groove, a pushing spring is arranged between the clamping block and the inner wall of the bottom of the moving groove, and one side inner wall of each -shaped placing frame, which is far away from the corresponding lower pressing plate, is provided with a clamping groove matched with the clamping block.
3. The photovoltaic energy storage lithium battery pack according to claim 2, wherein each lower pressure plate is further provided with a flexible flame retardant strip.
4. The photovoltaic energy storage lithium battery pack according to claim 1, wherein a resistance heating wire is further arranged on one side of the inner wall of the shell, which is close to the cooling fan.
5. The photovoltaic energy storage lithium battery pack of claim 1, wherein the air inlet slot is in an inverted V shape.
6. The photovoltaic energy storage lithium battery pack according to claim 1, wherein a rectangular groove is formed in the outer wall of one side, close to the air outlet, of the shell, the rectangular groove is communicated with the air inlet, and a plugging plate is hinged in the rectangular groove.
7. The photovoltaic energy storage lithium battery pack according to claim 4, wherein a temperature sensor is further disposed inside the housing.
8. The photovoltaic energy storage lithium battery pack according to claim 1, wherein the shell and the shell cover are connected through a plurality of connecting bolts, and mounting holes matched with the connecting bolts are formed in the periphery of the upper portion of the shell.
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| CN202410069838.XA CN117594911B (en) | 2024-01-18 | 2024-01-18 | Photovoltaic energy storage lithium battery pack |
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| CN202410069838.XA CN117594911B (en) | 2024-01-18 | 2024-01-18 | Photovoltaic energy storage lithium battery pack |
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| CN117594911B true CN117594911B (en) | 2024-03-29 |
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| TWI496532B (en) * | 2013-07-02 | 2015-08-11 | Wistron Corp | Portable electronic module and heat dissipating mechanism thereof |
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| CN117594911A (en) | 2024-02-23 |
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