CN114665210A - Lithium battery suitable for low-temperature environment and having anti-vibration capability - Google Patents
Lithium battery suitable for low-temperature environment and having anti-vibration capability Download PDFInfo
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- CN114665210A CN114665210A CN202210347000.3A CN202210347000A CN114665210A CN 114665210 A CN114665210 A CN 114665210A CN 202210347000 A CN202210347000 A CN 202210347000A CN 114665210 A CN114665210 A CN 114665210A
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- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H01M10/052—Li-accumulators
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- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- 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
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- 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
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
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- 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
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- 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
- H01M10/6572—Peltier elements or thermoelectric devices
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- 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
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- 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
- H01M50/242—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 against vibrations, collision impact or swelling
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- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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Abstract
The invention belongs to the technical field of lithium batteries, and particularly relates to a lithium battery which is suitable for a low-temperature environment and has anti-vibration capability, which comprises a protective shell, wherein heat dissipation holes are formed in two sides of the protective shell, the upper end and the lower end of the protective shell are both connected with a heat conduction plate in a through mode, a closing column is arranged outside the heat conduction plate and fixedly connected with the protective shell, a transmission plug is connected inside the closing column in a sliding mode, a transmission rod is fixed on one side, away from the heat conduction plate, of the transmission plug, a push-pull rod is rotatably connected to one end, away from the transmission plug, of the transmission rod, and a connecting block is rotatably connected to one end, away from the transmission rod, of the push-pull rod; according to the invention, the protection shell, the heating shell and the heat preservation shell are additionally arranged outside the lithium battery to carry out triple heat preservation, the heat dissipation condition of the lithium battery is not influenced through the heat dissipation holes, and meanwhile, the temperature is monitored in a heat conduction mode, so that real-time dynamic temperature compensation is realized, and the lithium battery protection effect in a low-temperature state is achieved.
Description
Technical Field
The invention belongs to the technical field of lithium batteries, and particularly relates to a lithium battery which is suitable for a low-temperature environment and has anti-vibration capability.
Background
The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution, can repeatedly store electric power for people, particularly at present, energy conservation and emission reduction are advocated, an electric automobile is a necessary trend, the lithium battery is the first choice of the current electric automobile, but the lithium battery still has defects in a low-temperature environment, and the discharge performance of the lithium battery is greatly inferior to that of the lithium battery in a normal-temperature state.
A chinese patent with publication number CN211957846U discloses a low temperature resistant lithium battery, which includes a housing with a cavity, a lithium battery pack, a second detection module, a first detection module, a heat dissipation module, a first heating module, a wind shielding module, a communication module and a processor; the temperature outside the shell is detected in real time through the second detection module, when the temperature outside the shell is lower than a preset value, the second heating module starts to work, the wind shielding module shields the first through hole and the second through hole, and the heat dissipation module stops working to prevent the heat inside the shell from being lost too fast; when the temperature in the cavity is too low, the first heating module starts to work, so that the temperature in the cavity is increased, the discharge performance of the lithium battery pack is prevented from being reduced, and the environment adaptability of the lithium battery is improved; the first detection module detects the temperature in the cavity in real time, and when the temperature in the cavity is too high, the heat dissipation module starts to work, so that the temperature in the cavity is reduced, and the problems that the performance of the lithium battery pack is reduced due to high temperature, the lithium battery pack catches fire and the like are avoided.
In the technical scheme, the temperature of the lithium battery is monitored in real time by adding the modules, however, the energy supply of the monitoring modules needs the lithium battery, which undoubtedly increases the burden of the lithium battery, and the modules are not provided with corresponding shock absorption mechanisms in the technical scheme, so that the modules are easy to loosen in the operation process of the lithium battery for the vehicle, and the due effect is lost; therefore, the invention provides the lithium battery which is suitable for a low-temperature environment and has the anti-vibration capability.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a lithium battery which is suitable for a low-temperature environment and has anti-vibration capability, which comprises a protective shell, wherein heat dissipation holes are formed in two sides of the protective shell, the upper end and the lower end of the protective shell are both connected with a temperature guide plate in a run-through manner, a closing column is arranged outside the temperature guide plate and fixedly connected with the protective shell, a transmission plug is slidably connected into the closing column, a transmission rod is fixed on one side of the transmission plug, which is far away from the temperature guide plate, a push-pull rod is rotatably connected to one end of the transmission rod, which is far away from the transmission plug, a connecting block is rotatably connected to one end of the push-pull rod, which is far away from the transmission rod, an installation plate is fixed at one end of the connecting block, which is close to the center of the protective shell, and a closing block is fixed on one side of the installation plate, which is close to the heat dissipation holes; when the protective shell works, when the external temperature is reduced, the temperature conducted by the temperature guide plate is reduced, so that the temperature inside the closed column is reduced, the gas pressure is further reduced, a pulling force can be exerted on the transmission plug, under the action of the pulling force, the transmission plug gradually pulls the transmission rod to slide towards the direction close to the center of the closed column, the transmission rod moves to pull the push-pull rod to move, the push-pull rod moves to drive the connecting block to move, the connecting block moves to pull the mounting plate to move, the mounting plate moves to further drive the closed block to move, the closed block moves to block and close the heat dissipation holes, the closing degree of the heat dissipation holes depends on the external temperature condition, when the temperature is too low, the heat dissipation holes can be completely blocked by the closed block, so that the heat dissipation condition in the working process of the lithium battery is not influenced under the high-temperature environment, and the condition of automatically sealing and ensuring the heat preservation of the lithium battery in a low-temperature environment can be met, so that the lithium battery is protected.
Preferably, a telescopic rod is fixed inside the closing block, force storage springs are arranged on two sides of the telescopic rod, the force storage springs are fixedly connected with the closing block, a transmission frame is fixed at one end, away from the closing block, of each force storage spring, a closing plate is fixed at one end, away from the force storage springs, of each transmission frame, the shape and the size of each closing plate are consistent with those of the heat dissipation holes, and one side, close to each other, of each closing plate and each heat dissipation hole is subjected to chamfering treatment; the during operation, the mounting panel can drive the motion of closing piece to the central axis of its central axis and louvre is same straight line, the elastic potential energy of holding the power spring this moment just can obtain the release, thereby promote the gear frame motion, thereby the gear frame motion drives the tensile telescopic link back motion of closing plate, inside the card that the motion of closing plate can be complete goes into the louvre, thereby the realization is with louvre totally enclosed effect, further improvement heat retaining effect, and behind temperature rising, because closing plate and louvre all handle through the radius angle, thereby the closing plate can gradual compression hold the power spring and make its shrink after reseing under the effect of closing piece pulling force this moment, so just reached can with louvre totally enclosed heat preservation and resettable effect when the high temperature.
Preferably, the outside of the connecting block is connected with four limiting columns in a sliding manner, and the four limiting columns are distributed in the protective shell in a rectangular manner; during operation, the connecting block can slide in spacing post, and spacing post is injectd the motion stroke of connecting block for the connecting block moves in vertical direction, and moves more gently.
Preferably, a heating shell is fixed inside the protective shell, a heating wire is fixed inside the heating shell, the heating shell is fixedly connected with the closing column, and a heat-insulating shell is fixed inside the heating shell; the during operation, the casing heats, the effect of heat preservation casing and protective housing carries out the three-layer protection to the lithium cell down, improve the heat preservation effect to the lithium cell, and then prevent that the lithium cell from appearing the operation anomaly under the low temperature condition, the heating wire power in the casing that heats under low temperature environment is put through, thereby the beginning operation produces heat, make the temperature of the casing that heats rise, thereby automatic production heat carries out temperature compensation to the lithium cell under microthermal environment, make it maintain in a stable operating temperature, improve its operating stability.
Preferably, a heat dissipation rod is fixed on one side of the heat conduction plate close to the center of the protective shell, heat transfer rods are fixed on two sides of each heat dissipation rod, fins are fixed on the outer portions of the heat transfer rods, a temperature sensing rod is arranged on one side of each heat dissipation rod close to the center of the protective shell, heat conduction rods are fixed on two sides of each temperature sensing rod, and heat dissipation wires are fixed on the outer portions of the heat conduction rods; when the temperature sensing device works, the temperature guide plate firstly conducts the external temperature to the heat dissipation rod, then conducts the external temperature to the heat transfer rod through the heat dissipation rod, and then radiates the external temperature to the closed column through the fins outside the heat transfer rod, so that the temperature conduction effect is better, in the process, the temperature sensing rod also conducts the temperature of the heat insulation shell to the closed column, the temperature of the heat insulation shell is related to the operation temperature of the lithium battery, the temperature conducted by the temperature sensing rod is also radiated to the closed column through the heat conduction rod and the heat dissipation wires, so that the internal and external temperatures of the lithium battery can be compared through the temperature sensing rod and the heat dissipation rod, when the temperature conducted by the temperature sensing rod is too high, the temperature of the lithium battery is too high, so that the pressure in the closed column can be increased on the contrary, the heat dissipation hole is completely opened for heat dissipation, when the temperature conducted by the heat dissipation rod is too low, the external temperature is too low, and heat dissipation is not needed, thereby drive the closing piece and seal the louvre completely and keep warm to the radiating effect of intelligence heat preservation has been reached.
Preferably, the temperature sensing rod is fixedly connected with the heat insulation shell, a heat insulation shell is fixed outside the temperature sensing rod, and the heat insulation shell is fixedly connected with the heating shell; during operation, the temperature sensing rod can conduct the temperature of the heat preservation shell to the closed column, and the heat insulation shell can effectively prevent the temperature sensing rod from conducting the temperature of the heating shell to the outside to cause error conduction.
Preferably, an extrusion spring is fixed inside the transmission plug, a support rod is fixed at one end of the extrusion spring, which is far away from the transmission plug, a sliding block is fixed at one end of the support rod, which is far away from the extrusion spring, the sliding block is connected with the transmission plug in a sliding manner, a friction block is fixed at one side of the sliding block, which is far away from the transmission plug, the friction block is connected with the closing column in a sliding manner, and elastic films are fixed at two sides of the sliding block; the during operation, under initial condition, extrusion spring is in compression state, extrusion spring this moment can exert a thrust to the bracing piece, this thrust is promoting the sliding block motion, thereby the sliding block motion drives the clutch blocks motion, thereby make the clutch blocks inseparabler with the laminating of closed post, and after the wearing and tearing take place at the clutch blocks, the clutch blocks still can keep the state of laminating with closed post under extrusion spring's effect, and the elastic membrane this moment then can be stretched, make and keep confined state between clutch blocks and the bracing piece, thereby the life of equipment has been prolonged, and inside airtight effect has been improved, the accuracy of motion is improved.
Preferably, an oil spilling film is fixed inside the closed column, a support plate is fixed on one side of the oil spilling film, which is far away from the center of the closed column, the support plate is connected with the closed column in a sliding manner, a return spring is fixed on one side of the support plate, which is far away from the oil spilling film, an oil storage bag is arranged on one side of the return spring, a spray head is connected inside the oil storage bag in a through manner, pressure rods are arranged on two sides of the spray head, and the pressure rods are fixedly connected with the support plate; when the oil spill film is driven to slide by the transmission plug, the elastic potential energy of the extrusion spring is released, so that an extrusion force can be applied to the oil spill film, the extrusion force acts on the reset spring through the support plate, the reset spring is compressed finally to enable the oil spill film to shrink, the support plate can drive the pressurizing rod to extrude the oil storage bag simultaneously in the process, the oil storage bag is compressed finally to enable the oil storage bag to shrink, the pressure in the oil storage bag is increased, the lubricating liquid stored in the oil storage bag can be sprayed out through the spray head, and the sprayed lubricating liquid flows to the surface of the friction block through the oil spill film, so that the oil storage bag is lubricated, the abrasion phenomenon in the movement process is reduced, and the service life of equipment is prolonged.
Preferably, a temperature blocking shell is arranged on one side, close to the center of the closed column, of the transmission plug, a detection rod is connected to one side, close to the transmission plug, of the temperature blocking shell in a penetrating manner, a heating contact is fixed on one side, far away from the transmission plug, of the detection rod, a buffer spring is fixed on one side, close to the detection rod, of the heating contact, the buffer spring is fixedly connected with the temperature blocking shell, a circuit contact is arranged on one side, far away from the detection rod, of the heating contact, and the circuit contact is fixedly connected with the temperature blocking shell; the during operation, transmission stopper applys a thrust to the detection pole, and the detection pole promotes heating contact extension buffer spring under the effect of this thrust and makes its deformation back motion, moves to the back of contacting with the circuit contact when heating the contact, and the heating wire power is put through this moment to the beginning operation produces the heat, and then makes the lithium cell keep in a suitable operating temperature within range, prevents that it from working under low temperature environment, improves the stability of its work.
Preferably, the upper end and the lower end of the protective shell are both fixed with a fixing plate, the two sides of the fixing plate are both provided with a connecting rod, the top end of the connecting rod is fixed with a damping spring, a pressurizing plug is fixed inside the damping spring, the outside of the pressurizing plug is connected with an air guide column in a sliding manner, one end of the damping spring, which is far away from the connecting rod, is fixed with an installation column, an expansion bag is fixed outside the connecting rod, the expansion bag is fixedly connected with the protective shell, one side of the expansion bag, which is far away from the protective shell, is provided with a through hole, and the through hole is communicated with the air guide column; the during operation, thereby outside equipment takes place vibrations and drives the erection column vibrations, and the vibrations of erection column can be absorbed the buffering by damping spring, thereby the influence of vibrations to the lithium cell has been reduced, and it can drive the motion of pressurization stopper simultaneously at the in-process of damping spring vibrations, pressurization stopper at this moment slides in the air guide post, thereby in the gaseous reciprocating inflation bag of impressing in with the air guide post, make the inflation bag produce the inflation, thereby unload partial shaking force, so just reach shock-resistant effect, the effectual lithium cell that has protected makes it can not receive the influence of vibrations.
The invention has the following beneficial effects:
1. according to the lithium battery with the anti-vibration capability and the low-temperature environment, the protection shell, the heating shell and the heat preservation shell are additionally arranged outside the lithium battery to carry out triple heat preservation, the heat dissipation condition of the lithium battery is not influenced through the heat dissipation holes, and meanwhile, the temperature is monitored in a heat conduction mode, so that real-time dynamic temperature compensation is realized, and the protection effect on the lithium battery in the low-temperature state is achieved.
2. According to the lithium battery with the anti-vibration capability, which is suitable for the low-temperature environment, the mounting columns and the damping springs are additionally arranged outside the protective shell, so that the vibration of the equipment in the motion process is effectively relieved, the stability of each temperature monitoring mechanism inside the protective shell is improved, and the effect of protecting the lithium battery from the influence of the vibration is achieved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a sectional view of the protective housing structure of the present invention;
FIG. 3 is a schematic view of the spacing post structure of the present invention;
FIG. 4 is a schematic view of a closure block according to the present invention;
FIG. 5 is an enlarged schematic view taken at A of FIG. 2 in accordance with the present invention;
FIG. 6 is an enlarged schematic view of the invention at B of FIG. 2;
FIG. 7 is a schematic view of the oil spill film structure of the present invention;
FIG. 8 is a schematic view of the friction block structure of the present invention;
fig. 9 is a schematic view of the connecting rod structure of the present invention.
In the figure: 1. a protective housing; 2. a fixing plate; 3. a heat conducting plate; 4. a heat dissipation rod; 5. a heat transfer rod; 6. a fin; 7. closing the column; 8. a drive plug; 9. a transmission rod; 10. a push-pull rod; 11. connecting blocks; 12. mounting a plate; 13. a closing block; 14. a telescopic rod; 15. a power storage spring; 16. a transmission frame; 17. a closing plate; 18. heat dissipation holes; 19. heating the shell; 20. a heat-insulating shell; 21. a temperature sensing lever; 22. a thermal insulation shell; 23. a heat conducting rod; 24. a heat-dissipating filament; 25. oil film overflow; 26. a support plate; 27. a return spring; 28. a pressurizing rod; 29. an oil reservoir bladder; 30. a spray head; 31. a compression spring; 32. a support bar; 33. a slider; 34. a friction block; 35. an elastic film; 36. a connecting rod; 37. a damping spring; 38. a pressure plug; 39. a gas-conducting column; 40. mounting a column; 41. an inflation bladder; 42. a temperature-blocking housing; 43. a detection lever; 44. heating the contact; 45. a buffer spring; 46. a circuit contact; 47. a limiting post.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
As shown in fig. 1 to 3, a lithium battery with shock resistance adapted to low temperature environment according to an embodiment of the present invention includes a protective casing 1, both sides of the protective casing 1 are provided with heat dissipation holes 18, both upper and lower ends of the protective casing 1 are connected with a heat conduction plate 3 in a penetrating way, a closed column 7 is arranged outside the temperature guide plate 3, the closed column 7 is fixedly connected with the protective shell 1, a transmission plug 8 is connected in the closing column 7 in a sliding way, a transmission rod 9 is fixed on one side of the transmission plug 8 far away from the temperature guide plate 3, one end of the transmission rod 9 far away from the transmission plug 8 is rotatably connected with a push-pull rod 10, one end of the push-pull rod 10 far away from the transmission rod 9 is rotatably connected with a connecting block 11, an installation plate 12 is fixed at one end of the connection block 11 close to the center of the protective shell 1, and a closing block 13 is fixed at one side of the installation plate 12 close to the heat dissipation hole 18; when the protective shell works, when the outside air temperature is reduced, the temperature conducted by the heat conducting plate 3 is reduced, so that the temperature inside the closed column 7 is reduced, the gas pressure is further reduced, a pulling force can be exerted on the transmission plug 8, under the action of the pulling force, the transmission plug 8 gradually pulls the transmission rod 9 to slide towards the direction close to the center of the closed column 7, the transmission rod 9 moves to pull the push-pull rod 10 to move, the push-pull rod 10 moves to drive the connecting block 11 to move, the connecting block 11 moves to pull the mounting plate 12 to move, the mounting plate 12 moves to drive the closing block 13 to move, the closing block 13 moves to block and close the heat dissipation holes 18, the closing degree of the heat dissipation holes 18 depends on the temperature condition of the outside, when the air temperature is too low, the closing block 13 can completely block the heat dissipation holes 18, so that the protective shell 1 is completely closed, and the heat preservation effect is further improved, therefore, the heat dissipation condition of the lithium battery in the working process can not be influenced in a high-temperature environment, and the heat preservation condition of the lithium battery can be guaranteed by automatic sealing in a low-temperature environment, so that the lithium battery is protected.
As shown in fig. 4, an expansion link 14 is fixed inside the closing block 13, power storage springs 15 are arranged on both sides of the expansion link 14, the power storage springs 15 are fixedly connected with the closing block 13, a transmission frame 16 is fixed on one end of the power storage springs 15 far away from the closing block 13, a closing plate 17 is fixed on one end of the transmission frame 16 far away from the power storage springs 15, the shape and size of the closing plate 17 are consistent with those of the heat dissipation holes 18, and the side, close to each other, of the closing plate 17 and the heat dissipation holes 18 is subjected to rounding treatment; during operation, mounting panel 12 can drive closing block 13 and move to central axis and the central axis of louvre 18 is same straight line, the elastic potential energy of the spring 15 that holds power this moment just can obtain the release, thereby promote the motion of driving frame 16, thereby the motion of driving frame 16 drives closing plate 17 and stretches telescopic link 14 after-movement, closing plate 17 motion can be complete card income louvre 18 inside, thereby realize the effect with louvre 18 totally enclosed, further improvement heat retaining effect, and after temperature risees, because closing plate 17 all handles through the radius angle with louvre 18, thereby closing plate 17 can be gradual compression power storage spring 15 make its shrink back reset under the effect of closing block 13 pulling force this moment, so just reached and can hold louvre 18 totally enclosed heat retaining and resettable effect when the high temperature.
As shown in fig. 2 to 3, the connecting block 11 is externally connected with four limiting posts 47 in a sliding manner, and the four limiting posts 47 are distributed in the protection housing 1 in a rectangular manner; during operation, connecting block 11 can slide in spacing post 47, and spacing post 47 is injectd the motion stroke of connecting block 11 for connecting block 11 moves in vertical direction, and moves more gently.
As shown in fig. 2, a heating shell 19 is fixed inside the protective shell 1, a heating wire is fixed inside the heating shell 19, the heating shell 19 is fixedly connected with the closing column 7, and a heat preservation shell 20 is fixed inside the heating shell 19; the during operation, the casing 19 heats, the three-layer protection is carried out to the lithium cell under the effect of casing 20 and protective housing 1 that keeps warm, improve the heat preservation effect to the lithium cell, and then prevent that the lithium cell from appearing the operation unusually under the low temperature condition, the heating wire power in the casing 19 that heats under low temperature environment is put through, thereby begin to operate and produce the heat, make the temperature that heats casing 19 rise, thereby automatic production heat carries out temperature compensation to the lithium cell under microthermal environment, make it maintain in a stable operating temperature, improve its operating stability.
As shown in fig. 5, a heat dissipation rod 4 is fixed on one side of the heat conduction plate 3 close to the center of the protective shell 1, heat transfer rods 5 are fixed on both sides of the heat dissipation rod 4, fins 6 are fixed on the outer portions of the heat transfer rods 5, a temperature sensing rod 21 is arranged on one side of the heat dissipation rod 4 close to the center of the protective shell 1, heat conduction rods 23 are fixed on both sides of the temperature sensing rod 21, and heat dissipation wires 24 are fixed on the outer portions of the heat conduction rods 23; when the lithium battery temperature control device works, the temperature guide plate 3 firstly transmits the external temperature to the heat dissipation rod 4, then transmits the external temperature to the heat transfer rod 5 through the heat dissipation rod 4, and then radiates the external temperature into the closed column 7 through the fins 6 outside the heat transfer rod 5, so that the temperature transmission effect is better, in the process, the temperature sensing rod 21 also transmits the temperature of the heat preservation shell 20 into the closed column 7, the temperature of the heat preservation shell 20 is related to the operation temperature of the lithium battery, the temperature transmitted by the temperature sensing rod 21 is also radiated into the closed column 7 through the heat conduction rod 23 and the heat dissipation wires 24, so that the internal and external temperatures of the lithium battery can be compared through the temperature sensing rod 21 and the heat dissipation rod 4, when the temperature transmitted by the temperature sensing rod 21 is too high, the temperature of the lithium battery is too high, and the pressure in the closed column 7 is increased, so that the heat dissipation 18 is completely opened for heat dissipation, and when the temperature transmitted by the heat dissipation rod 4 is too low, the external temperature is too low, at the moment, heat is not needed to be dissipated, and heat preservation is needed, so that the closing block 13 is driven to completely close the heat dissipation holes 18 for heat preservation, and the intelligent heat preservation and dissipation effect is achieved.
As shown in fig. 5, the temperature sensing rod 21 is fixedly connected with the heat preservation shell 20, a heat insulation shell 22 is fixed outside the temperature sensing rod 21, and the heat insulation shell 22 is fixedly connected with the heating shell 19; when the temperature-sensing device works, the temperature-sensing rod 21 can also conduct the temperature of the heat-insulating shell 20 to the inside of the closed column 7, and the heat-insulating shell 22 can effectively prevent the temperature-sensing rod 21 from conducting the temperature of the heat-insulating shell 19 to the outside, so that the phenomenon of error conduction is caused.
As shown in fig. 8, an extrusion spring 31 is fixed inside the transmission plug 8, a support rod 32 is fixed at one end of the extrusion spring 31 away from the transmission plug 8, a slide block 33 is fixed at one end of the support rod 32 away from the extrusion spring 31, the slide block 33 is connected with the transmission plug 8 in a sliding manner, a friction block 34 is fixed at one side of the slide block 33 away from the transmission plug 8, the friction block 34 is connected with the closing column 7 in a sliding manner, and an elastic membrane 35 is fixed at both sides of the slide block 33; during operation, in the initial state, extrusion spring 31 is in compression state, extrusion spring 31 at this moment can exert a thrust to bracing piece 32, this thrust is pushing sliding block 33 to move, sliding block 33 moves thereby drive friction block 34 and moves, thereby make the laminating of friction block 34 and closed post 7 inseparabler, and after friction block 34 takes place wearing and tearing, friction block 34 still can keep the state of laminating with closed post 7 under extrusion spring 31's effect, elastic membrane 35 at this moment then can be stretched, make and keep confined state between friction block 34 and the bracing piece 32, thereby the life of equipment has been prolonged, and inside airtight effect has been improved, the accuracy of motion is improved.
As shown in fig. 7, an oil spilling film 25 is fixed inside the closing column 7, a support plate 26 is fixed on one side of the oil spilling film 25 away from the center of the closing column 7, the support plate 26 is slidably connected with the closing column 7, a return spring 27 is fixed on one side of the support plate 26 away from the oil spilling film 25, an oil storage bag 29 is arranged on one side of the return spring 27, a spray head 30 is connected inside the oil storage bag 29 in a through manner, pressure rods 28 are arranged on both sides of the spray head 30, and the pressure rods 28 are fixedly connected with the support plate 26; when the oil storage device works, the transmission plug 8 drives the friction block 34 to slide through the oil spilling film 25, at the moment, the elastic potential energy of the extrusion spring 31 is released, so that extrusion force can be applied to the oil spilling film 25, the extrusion force acts on the return spring 27 through the support plate 26, the return spring 27 is finally compressed to contract, the support plate 26 simultaneously drives the pressurization rod 28 to extrude the oil storage bag 29 in the process, the oil storage bag 29 is finally compressed to contract, at the moment, the pressure in the oil storage bag 29 is increased, the lubricating liquid stored in the oil storage bag 29 is sprayed out through the spray head 30, and the sprayed lubricating liquid flows to the surface of the friction block 34 through the oil spilling film 25, so that the lubricating liquid is lubricated, the abrasion phenomenon in the movement process is reduced, and the service life of the device is prolonged.
As shown in fig. 6, a temperature blocking housing 42 is disposed on one side of the transmission plug 8 close to the center of the closing column 7, a detection rod 43 is connected through one side of the temperature blocking housing 42 close to the transmission plug 8, a heating contact 44 is fixed on one side of the detection rod 43 far away from the transmission plug 8, a buffer spring 45 is fixed on one side of the heating contact 44 close to the detection rod 43, the buffer spring 45 is fixedly connected with the temperature blocking housing 42, a circuit contact 46 is disposed on one side of the heating contact 44 far away from the detection rod 43, and the circuit contact 46 is fixedly connected with the temperature blocking housing 42; during operation, transmission stopper 8 exerts a thrust to detection pole 43, and detection pole 43 promotes heating contact 44 under the effect of this thrust and stretches buffer spring 45 and make its deformation back motion, and after heating contact 44 moved to and contact with circuit contact 46, the heating wire power was put through this moment to the beginning operation produces the heat, and then makes the lithium cell keep in a suitable operation temperature range, prevents that it from working under low temperature environment, improves its job stabilization nature.
Example two
As shown in fig. 9, a first comparative example, in which another embodiment of the present invention is: the upper end and the lower end of the protective shell 1 are both fixed with a fixed plate 2, two sides of the fixed plate 2 are both provided with a connecting rod 36, the top end of the connecting rod 36 is fixed with a damping spring 37, a pressurizing plug 38 is fixed inside the damping spring 37, the outside of the pressurizing plug 38 is connected with an air guide column 39 in a sliding manner, one end of the damping spring 37 far away from the connecting rod 36 is fixed with a mounting column 40, the outside of the connecting rod 36 is fixed with an expansion bag 41, the expansion bag 41 is fixedly connected with the protective shell 1, one side of the expansion bag 41 far away from the protective shell 1 is provided with a through hole, and the through hole is communicated with the air guide column 39; during operation, thereby the vibrations take place for outside equipment and drive erection column 40 vibrations, and the vibrations of erection column 40 can be absorbed the buffering by damping spring 37, thereby the influence of vibrations to the lithium cell has been reduced, and it can drive the motion of pressurization stopper 38 simultaneously at the in-process that damping spring 37 shakes, pressurization stopper 38 at this moment slides in air guide column 39, thereby in the gaseous reciprocating inflation bag 41 of impressing in air guide column 39, make inflation bag 41 produce the inflation, thereby remove part vibrations power, so just reached antidetonation effect, the effectual lithium cell that has protected makes it can not receive the influence of vibrations.
The working principle is that when the lithium battery is installed in the heat-insulating shell 20 in use, at the moment, the lithium battery is protected in three layers under the action of the heating shell 19, the heat-insulating shell 20 and the protective shell 1, the heat-insulating effect of the lithium battery is improved, further, the lithium battery is prevented from being abnormal in operation under the low-temperature condition, heat dissipation is carried out during daily operation of the lithium battery through the heat dissipation holes 18, when the external temperature is reduced, the temperature conducted by the heat conduction plate 3 is reduced, the temperature inside the closed column 7 is reduced, the gas pressure is further reduced, a pulling force is exerted on the transmission plug 8, under the action of the pulling force, the transmission plug 8 gradually pulls the transmission rod 9 to slide towards the direction close to the center of the closed column 7, the transmission rod 9 moves to pull the push-pull rod 10 to move, the push-pull rod 10 moves to drive the connecting block 11 to move, and the connecting block 11 slides in the limiting column 47 at the moment, the limiting column 47 limits the movement stroke of the connecting block 11, so that the connecting block 11 moves in the vertical direction and moves more smoothly, the connecting block 11 moves to pull the mounting plate 12 to move, the mounting plate 12 moves to further drive the closing block 13 to move, the closing block 13 moves to block and close the heat dissipation holes 18, the closing degree of the heat dissipation holes 18 depends on the temperature condition of the outside, when the air temperature is too low, the closing block 13 can completely block the heat dissipation holes 18, so that the protective shell 1 is completely closed, and the heat preservation effect is further improved;
in the above process, the temperature conducting plate 3 firstly conducts the external temperature to the heat dissipating rod 4, then conducts the external temperature to the heat transferring rod 5 through the heat dissipating rod 4, and then radiates the external temperature into the closed column 7 through the fins 6 outside the heat transferring rod 5, so that the temperature conducting effect is better, in the process, the temperature sensing rod 21 also conducts the temperature of the heat insulating shell 20 into the closed column 7, the temperature of the heat insulating shell 20 is related to the operating temperature of the lithium battery, the temperature conducted by the temperature sensing rod 21 is also radiated into the closed column 7 through the heat conducting rod 23 and the heat dissipating wire 24, so that the internal and external temperatures of the lithium battery can be compared through the temperature sensing rod 21 and the heat dissipating rod 4, when the temperature conducted by the heat dissipating hole of the temperature sensing rod 21 is too high, the temperature of the lithium battery is too high, and the pressure inside the closed column 7 is increased, so that the heat dissipating 18 is completely opened for heat dissipation, when the temperature conducted by the heat dissipating rod 4 is too low, the external temperature is too low, at the moment, heat is not needed to be preserved when heat dissipation is needed, so that the closing block 13 is driven to completely close the heat dissipation holes 18 for heat preservation, and the intelligent heat preservation and dissipation effect is achieved;
when the temperature is too low, the mounting plate 12 can drive the closing block 13 to move to the same straight line between the central axis of the closing block 13 and the central axis of the heat dissipation hole 18, at the moment, the elastic potential energy of the force storage spring 15 can be released, so that the transmission frame 16 is pushed to move, the transmission frame 16 moves to drive the closing plate 17 to stretch the telescopic rod 14 and then move, the closing plate 17 can be completely clamped into the heat dissipation hole 18 when moving, so that the heat dissipation hole 18 is completely closed, and after the temperature rises, the closing plate 17 and the heat dissipation hole 18 are both subjected to chamfering treatment, so that the closing plate 17 can gradually compress the force storage spring 15 under the pulling force of the closing block 13 to enable the force storage spring 15 to be contracted and reset, and therefore, the effects of completely closing and preserving the heat of the heat dissipation hole 18 and resetting at the high temperature can be achieved;
in an initial state, the extrusion spring 31 is in a compressed state, at this time, the extrusion spring 31 applies a thrust to the support rod 32, the thrust pushes the sliding block 33 to move, the sliding block 33 moves to drive the friction block 34 to move, so that the friction block 34 is attached to the closing column 7 more tightly, after the friction block 34 is abraded, the friction block 34 still keeps the attached state with the closing column 7 under the action of the extrusion spring 31, and the elastic film 35 is stretched at this time, so that the friction block 34 and the support rod 32 keep a closed state, so that the service life of the equipment is prolonged, the internal sealing effect is improved, and the movement accuracy is improved;
when the transmission plug 8 drives the friction block 34 to slide across the oil spilling film 25, the elastic potential energy of the extrusion spring 31 is released to apply an extrusion force to the oil spilling film 25, the extrusion force acts on the return spring 27 through the support plate 26 and finally compresses the return spring 27 to contract, in the process, the support plate 26 simultaneously drives the pressurizing rod 28 to extrude the oil storage bag 29 and finally compresses the oil storage bag 29 to contract, the pressure in the oil storage bag 29 is increased, the lubricating liquid stored in the oil storage bag is sprayed out through the spray head 30, the sprayed lubricating liquid flows to the surface of the friction block 34 through the oil spilling film 25 to lubricate the friction block, the service life of the friction block is prolonged, it should be noted that the transmission plug 8 in a normal temperature state is positioned on one side of the oil spilling film 25 far away from the center of the closed column 7, and both sides of the oil spilling film 25 in contact with the closed column 7 are chamfered, meanwhile, the two sides of the friction block 34 are also subjected to rounding treatment, so that lubrication is only carried out at low temperature, and the pressure in the closed column 7 is increased at high temperature, so that enough power is provided for pushing the transmission plug 8 out of the area in sliding connection with the oil overflow film 25;
under the condition that the outside air temperature is too low, the transmission plug 8 moves to be in contact with the detection rod 43 and applies a thrust force to the detection rod 43, the detection rod 43 pushes the heating contact 44 to stretch the buffer spring 45 to deform and then move under the action of the thrust force, and when the heating contact 44 moves to be in contact with the circuit contact 46, the power supply of the electric heating wire in the heating shell 19 is switched on, so that the heating shell 19 starts to operate to generate heat, the temperature of the heating shell 19 is increased, the lithium battery is kept in a proper operation temperature range, the lithium battery is prevented from operating in a low-temperature environment, and the operation stability of the lithium battery is improved;
in the process of installing the device, the fixing plate 2 and the mounting column 40 are required to be connected with external equipment, when the vibration condition occurs, the external equipment vibrates to drive the mounting column 40 to vibrate, the vibration of the mounting column 40 is absorbed and buffered by the damping spring 37, the influence of the vibration on the lithium battery is reduced, the pressurizing plug 38 is driven to move simultaneously in the vibration process of the damping spring 37, the pressurizing plug 38 slides in the air guide column 39 at the moment, so that the gas in the air guide column 39 is pressed into the expansion bag 41 in a reciprocating mode, the expansion bag 41 expands, part of vibration force is removed, and the anti-vibration effect is achieved.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a lithium cell that is adapted to low temperature environment and has anti-vibration ability which characterized in that: comprises a protective shell (1), heat dissipation holes (18) are arranged on both sides of the protective shell (1), the upper end and the lower end of the protective shell (1) are both connected with a heat conducting plate (3) in a run-through manner, a closed column (7) is arranged outside the heat conducting plate (3), the closed column (7) is fixedly connected with the protective shell (1), a transmission plug (8) is connected in the closed column (7) in a sliding way, a transmission rod (9) is fixed on one side of the transmission plug (8) far away from the temperature guide plate (3), one end of the transmission rod (9) far away from the transmission plug (8) is rotationally connected with a push-pull rod (10), one end of the push-pull rod (10) far away from the transmission rod (9) is rotatably connected with a connecting block (11), an installation plate (12) is fixed at one end of the connecting block (11) close to the center of the protective shell (1), and a closing block (13) is fixed on one side of the mounting plate (12) close to the heat dissipation hole (18).
2. The lithium battery with shock resistance adapted to low-temperature environment according to claim 1, wherein: the utility model discloses a power spring, including closed piece (13), telescopic link (14), power spring (15), transmission frame (16), power spring (15) and closed piece (13) fixed connection, the one end of keeping away from closed piece (13) of power spring (15) all is provided with holds power spring (15), the one end of keeping away from power spring (15) of transmission frame (16) is fixed with closing plate (17), the shape size of closing plate (17) is unanimous with the shape size of louvre (18), and closing plate (17) and louvre (18) one side that is close to each other all are handled through the radius angle.
3. The lithium battery with shock resistance adapted to low-temperature environment according to claim 1, wherein: the outside sliding connection of connecting block (11) has spacing post (47), spacing post (47) are total four and are the inside of rectangle distribution at protective housing (1).
4. The lithium battery with shock resistance adapted to low-temperature environment according to claim 1, wherein: protective housing (1) inside is fixed with heating shell (19), heating shell (19) inside is fixed with the heater strip, heating shell (19) and closure post (7) fixed connection, heating shell (19) inside is fixed with heat preservation shell (20).
5. The lithium battery with shock resistance adapted to low-temperature environment according to claim 1, wherein: one side that temperature guide plate (3) are close to protective housing (1) center is fixed with heat dissipation pole (4), heat dissipation pole (4) both sides all are fixed with heat transfer pole (5), heat transfer pole (5) external fixation has fin (6), one side that heat dissipation pole (4) are close to protective housing (1) center is provided with temperature sensing pole (21), temperature sensing pole (21) both sides all are fixed with heat conduction pole (23), heat conduction pole (23) external fixation has heat dissipation silk (24).
6. The lithium battery with shock resistance adapted to low-temperature environment according to claim 5, wherein: the temperature sensing rod (21) is fixedly connected with the heat insulation shell (20), a heat insulation shell (22) is fixed on the outer portion of the temperature sensing rod (21), and the heat insulation shell (22) is fixedly connected with the heating shell (19).
7. The lithium battery with shock resistance adapted to low temperature environment according to claim 1, wherein: transmission stopper (8) inside is fixed with extrusion spring (31), the one end that transmission stopper (8) were kept away from in extrusion spring (31) is fixed with bracing piece (32), the one end that extrusion spring (31) were kept away from in bracing piece (32) is fixed with sliding block (33), sliding block (33) and transmission stopper (8) sliding connection, one side that transmission stopper (8) were kept away from in sliding block (33) is fixed with clutch blocks (34), clutch blocks (34) and closure post (7) sliding connection, sliding block (33) both sides all are fixed with elastic membrane (35).
8. The lithium battery with shock resistance adapted to low-temperature environment according to claim 1, wherein: an oil overflow film (25) is fixed inside the closing column (7), a supporting plate (26) is fixed on one side, away from the center of the closing column (7), of the oil overflow film (25), the supporting plate (26) is connected with the closing column (7) in a sliding mode, a return spring (27) is fixed on one side, away from the oil overflow film (25), of the supporting plate (26), an oil storage bag (29) is arranged on one side of the return spring (27), a spray head (30) is connected inside the oil storage bag (29) in a penetrating mode, pressurizing rods (28) are arranged on two sides of the spray head (30), and the pressurizing rods (28) are fixedly connected with the supporting plate (26).
9. The lithium battery with shock resistance adapted to low-temperature environment according to claim 1, wherein: one side that transmission stopper (8) are close to closed post (7) center is provided with fender temperature casing (42), one side through connection that fender temperature casing (42) are close to transmission stopper (8) has test bar (43), one side that transmission stopper (8) were kept away from in test bar (43) is fixed with heating contact (44), one side that heating contact (44) are close to test bar (43) is fixed with buffer spring (45), buffer spring (45) and fender temperature casing (42) fixed connection, one side that detection bar (43) were kept away from in heating contact (44) is provided with circuit contact (46), circuit contact (46) and fender temperature casing (42) fixed connection.
10. The lithium battery with shock resistance adapted to low-temperature environment according to claim 1, wherein: both ends all are fixed with fixed plate (2) about protective housing (1), fixed plate (2) both sides all are provided with connecting rod (36), connecting rod (36) top is fixed with damping spring (37), damping spring (37) inside is fixed with pressure plug (38), pressure plug (38) outside sliding connection has air guide column (39), the one end that connecting rod (36) were kept away from in damping spring (37) is fixed with erection column (40), connecting rod (36) outside is fixed with inflation bag (41), inflation bag (41) and protective housing (1) fixed connection, the through-hole has been seted up to one side that protective housing (1) was kept away from in inflation bag (41), and this through-hole has a perfect understanding with air guide column (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210347000.3A CN114665210A (en) | 2022-04-01 | 2022-04-01 | Lithium battery suitable for low-temperature environment and having anti-vibration capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210347000.3A CN114665210A (en) | 2022-04-01 | 2022-04-01 | Lithium battery suitable for low-temperature environment and having anti-vibration capability |
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| Publication Number | Publication Date |
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| CN114665210A true CN114665210A (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210347000.3A Withdrawn CN114665210A (en) | 2022-04-01 | 2022-04-01 | Lithium battery suitable for low-temperature environment and having anti-vibration capability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069122A (en) * | 2021-11-23 | 2022-02-18 | 桂林航天工业学院 | New energy battery protection cabin and heat radiation structure |
| CN115143780A (en) * | 2022-06-27 | 2022-10-04 | 连城凯克斯科技有限公司 | Synthetic furnace capable of improving vacuum sealing control precision |
-
2022
- 2022-04-01 CN CN202210347000.3A patent/CN114665210A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069122A (en) * | 2021-11-23 | 2022-02-18 | 桂林航天工业学院 | New energy battery protection cabin and heat radiation structure |
| CN115143780A (en) * | 2022-06-27 | 2022-10-04 | 连城凯克斯科技有限公司 | Synthetic furnace capable of improving vacuum sealing control precision |
| CN115143780B (en) * | 2022-06-27 | 2023-08-04 | 连城凯克斯科技有限公司 | Synthetic furnace for improving vacuum sealing control precision |
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Application publication date: 20220624 |