CN117810579A - Abnormal alarm device for lithium battery - Google Patents
Abnormal alarm device for lithium battery Download PDFInfo
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- CN117810579A CN117810579A CN202311781406.3A CN202311781406A CN117810579A CN 117810579 A CN117810579 A CN 117810579A CN 202311781406 A CN202311781406 A CN 202311781406A CN 117810579 A CN117810579 A CN 117810579A
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- temperature
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 91
- 230000002159 abnormal effect Effects 0.000 title claims description 8
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 239000011521 glass Substances 0.000 claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims abstract description 27
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 24
- 230000005856 abnormality Effects 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 210000004027 cell Anatomy 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 239000002274 desiccant Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 7
- 210000005056 cell body Anatomy 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 14
- 238000007654 immersion Methods 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 230000008859 change Effects 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000110 cooling liquid Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000012806 monitoring device Methods 0.000 description 5
- 230000002427 irreversible effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 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
- H01M10/42—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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
-
- 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
- H01M10/60—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
- H01M10/6567—Liquids
-
- 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
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- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to the technical field of lithium battery monitoring, in particular to a lithium battery abnormality alarm device, which comprises a fixed box, wherein each temperature monitoring assembly corresponds to one side of each battery block, each temperature monitoring assembly comprises a protective shell fixedly connected to the inner wall of the fixed box, and a glass box is arranged in the protective shell; two sealing plates fixedly connected inside the glass box, wherein one sealing plate is positioned below the glass box, and a pipe body is fixedly connected between the two sealing plates; a piston rod slidably connected in the tube body; the sealing plate is provided with a pressure sensor corresponding to the elasticity of the position of the piston rod, a buzzer is fixedly connected in the middle of the upper surface of the sealing plate and used for alarming, the piston rod is extruded by mercury, and the piston rod is extruded by the pressure sensor, so that the buzzer gives an alarm, the problem that the temperature inside the lithium battery is far beyond a threshold value and the lithium battery is irreversibly damaged due to slow sensing of the temperature sensor is solved.
Description
Technical Field
The invention belongs to the field of lithium battery monitoring, and particularly relates to a lithium battery abnormality alarm device.
Background
The storage battery is generally referred to as a general term of all chemical energy batteries which can be recharged and reused after the electric quantity is used to a certain extent, and the rechargeable battery is characterized in that the chemical action can be reversely performed after the external power supply is connected, so that various chemicals for manufacturing the storage battery are prepared, and the design of the storage battery is different; therefore, the voltage, the capacity, the appearance size and the weight of the storage battery are different, the storage battery needs to be monitored when the storage battery is used, and the alarm is given out in time when the storage battery is abnormal, so that the situation of excessive danger is avoided.
One patent application with publication number CN212807386U discloses a battery monitoring device with alarming function, which comprises a housing, there is a top cap at the top of the housing, there is a glass cover above, there are bee calling organ and warning light in the inside, the both sides of housing are provided with the dust screen simultaneously, internally mounted has the battery, there is the blotter between battery and the housing, there is the protecting crust at the top cap bottom, there is temperature sensor on one side of housing, there is the mount pad in the protecting crust, there is the circuit board above, there is voltage sensor above, gather chip, master control chip and driving chip above, the main function of this device is real-time monitoring battery state, in case temperature sensor detects the temperature and surpasss the threshold value, can convey information to master control chip, remind the user through alarming function.
The above-mentioned scheme still has some problems in practical application, when using this monitoring device, because this device uses temperature sensor, and temperature sensor is the principle design that sets up on the inner wall of casing, and temperature sensor is through the metal inflation simultaneously, metal can produce a corresponding extension after ambient temperature changes, therefore the sensor can be with different mode to this kind of reaction signal conversion, thereby obtain the signal of temperature change, but the temperature change of lithium cell is from inside to outside, when inside temperature has reached the high level that damages the battery, there is certain cooling when the temperature is conducted through the air medium in the battery, then on the metal in the sensor again, the thermal expansion of metal is also slower at the beginning, lead to when temperature sensor received the signal, the temperature in the battery has exceeded the threshold value for a long time, and then the problem that has produced irreversible damage to the inside of battery appears.
Therefore, the invention provides a lithium battery abnormality alarm device.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to an abnormality alarm device for a lithium battery, which comprises a fixed box, wherein a plurality of battery blocks are arranged in the fixed box, an alarm device is arranged in the fixed box, the alarm device comprises a plurality of temperature monitoring assemblies, each temperature monitoring assembly corresponds to one side of each battery block, each temperature monitoring assembly comprises a protective shell fixedly connected to the inner wall of the fixed box, and a glass box is arranged in the protective shell;
two sealing plates fixedly connected inside the glass box, wherein one sealing plate is positioned below the glass box, and a certain amount of mercury liquid is placed at the bottom of the glass box;
the pipe body is fixedly connected between the two sealing plates;
a piston rod slidably connected in the tube body;
and the sealing plate is rotatably arranged on the upper surface of the fixed box, a pressure sensor is elastically arranged at the position of the sealing plate corresponding to the piston rod, a buzzer is fixedly connected in the middle of the upper surface of the sealing plate, and the buzzer is used for alarming.
Preferably, the outer surface of each pressure sensor is sleeved with a rubber ring, the rubber rings are fixedly connected to the lower surface of the sealing plate, and the rubber rings are used for protecting the pressure sensors.
Preferably, a bottom plate is arranged below the protective shell, a collecting box is arranged on the upper surface of the bottom plate, a fixing net is fixedly connected to the upper surface of the collecting box, the fixing net is abutted to the bottom end of the protective shell, and the cross section of the collecting box and the fixing net is identical to the cross section of the protective shell.
Preferably, both sides of the bottom plate are provided with rotating plates in a rotating mode, one end, close to the collecting box, of each rotating plate is fixedly connected with an inserting block, inserting grooves are formed in positions, corresponding to the inserting blocks, of the collecting box, and the inserting blocks are connected with the inserting grooves in a clamping mode.
Preferably, the inside of collecting the box has been seted up first cavity, one side rigid coupling of collecting the box has two reference columns, every the reference column is located the equal rigid coupling of one end in first cavity has the connecting block, the connecting block is "L" shape, the one end and the collection box diapire butt of connecting block, the other end and the reference column rigid coupling of connecting block, two the reference column is kept away from the equal threaded connection of one end of collecting the box has the connecting wire, two the one end rigid coupling that the reference column was kept away from to the connecting wire has same water sensor, water sensor rigid coupling is on the inner wall of fixed box.
Preferably, the inner wall of the protective shell is fixedly connected with a rubber block, the top end of the rubber block is arc-shaped, and the rubber block is used for placing the protective glass box.
Preferably, a humidity monitoring assembly is arranged between the two temperature monitoring assemblies, the humidity monitoring assembly comprises a positioning rod, and the positioning rod is fixedly connected to the inner wall of the fixed box;
a rotating rod rotatably arranged at the top end of the positioning rod;
the bottom rod is fixedly connected to one end of the rotating rod, the bottom end of the bottom rod is fixedly connected with a hook block, and a drying agent bag is arranged in the hook block;
and a clamping block fixedly connected with the upper surface of the other end of the rotating rod, wherein a clamping groove is formed in the position, corresponding to the clamping block, of the sealing plate, and a fixing block is fixedly connected with the lower surface of the rotating rod, corresponding to the other end of the bottom rod.
Preferably, a cooling box is arranged between every two battery blocks, cooling liquid is arranged in the cooling box, a lifting handle is fixedly connected to the upper surface of the cooling box, a sealing cover is fixedly connected to one end of the cooling box, and the sealing cover is used for replacing the cooling liquid.
Preferably, the spacing groove has been seted up to the one end of fixed box, the position rigid coupling that the closing plate corresponds the spacing groove has the stopper, the stopper is magnetic material, the diapire of spacing groove is magnetic material too, stopper and spacing groove joint.
Preferably, the upper surface of fixed box has seted up first cell body, one side rotation of first cell body is provided with the spliced pole, the both ends of spliced pole all overlap and are equipped with the torsional spring, the circumference rigid coupling of spliced pole has the handle, the both sides of fixed box are rotated and are provided with two grips, the grip is convenient for shift this lithium cell.
The beneficial effects of the invention are as follows:
1. according to the abnormal alarming device for the lithium battery, after mercury is subjected to temperature transmission from the lithium battery, the mercury thermally expands to extrude the piston rod, when the temperature exceeds 60 degrees, the pressure sensor on the piston rod jack post sealing plate is electrified after receiving a signal, so that the buzzer alarms to remind a worker, the working temperature of the lithium battery is monitored better and more rapidly, the lithium battery is protected in time, the service life of the lithium battery is prolonged, and meanwhile, the problem that the temperature inside the lithium battery is far beyond a threshold value due to slow sensing of the temperature sensor, and the lithium battery is irreversibly damaged is solved.
2. According to the lithium battery abnormality alarm device, mercury flows to the bottom wall of the collecting box and contacts with the two connecting blocks, the two connecting blocks are the anode and the cathode of the water immersion sensor, the water immersion sensor is connected with the positioning column and the connecting blocks through the connecting lines, then the water immersion sensor is electrified, and the buzzer is electrified after the water immersion sensor is triggered, so that an alarm is given, and the effect that a user timely knows that an abnormal condition occurs in the lithium battery and needs to check the lithium battery is achieved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic view showing the internal structure of the fixing case of the present invention;
FIG. 3 is a top view of the mounting box of the present invention;
FIG. 4 is a schematic diagram of a temperature monitoring assembly of the present invention;
FIG. 5 is an exploded view of the temperature monitoring assembly of the present invention;
FIG. 6 is an enlarged view of the invention at B of FIG. 5;
FIG. 7 is a schematic view of the humidity monitoring assembly of the present invention;
FIG. 8 is a schematic view of the structure of the cooling box of the present invention;
FIG. 9 is an enlarged view of the invention at A of FIG. 2;
in the figure: 1. a fixed box; 11. a limit groove; 12. a limiting block;
2. a sealing plate; 21. a first tank body; 22. a torsion spring; 23. rotating the column; 24. a handle; 25. a grip;
3. a buzzer;
4. a battery block;
5. a protective shell; 51. a glass box; 52. a closing plate; 53. a tube body; 54. a piston rod; 55. a collection box; 56. a first cavity; 57. positioning columns; 58. a connecting wire; 59. a connecting block; 510. a water immersion sensor; 511. a fixed net; 512. a bottom plate; 513. a rotating plate; 514. inserting blocks; 515. a plug-in groove; 516. a pressure sensor; 517. a rubber ring; 518. a rubber block;
6. a positioning rod; 61. a rotating lever; 62. a bottom bar; 63. a hook block; 64. a desiccant bag; 65. a clamping block; 66. a fixed block; 67. a clamping groove;
7. a cooling box; 71. a handle; 72. sealing cover.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1 to 9, the abnormality warning device for a lithium battery according to the embodiment of the invention includes a fixed box 1, a plurality of battery blocks 4 are arranged in the fixed box 1, a warning device is arranged in the fixed box 1, the warning device includes a plurality of temperature monitoring components, each temperature monitoring component corresponds to one side of each battery block 4, each temperature monitoring component includes a protective shell 5 fixedly connected to the inner wall of the fixed box 1, and a glass box 51 is arranged in the protective shell 5; two closing plates 52 fixedly connected inside the glass box 51, wherein one closing plate 52 is positioned below the glass box 51, and a certain amount of mercury liquid is placed at the bottom of the glass box 51; a tube 53 fixedly connected between the two closing plates 52; a piston rod 54 slidably connected within the tube 53; and the sealing plate 2 is rotatably arranged on the upper surface of the fixed box 1, a pressure sensor 516 is elastically arranged at the position of the sealing plate 2 corresponding to the piston rod 54, a buzzer 3 is fixedly connected in the middle of the upper surface of the sealing plate 2, and the buzzer 3 is used for alarming.
Specifically, in the process of using the existing monitoring device, the temperature sensor is arranged on the inner wall of the shell, meanwhile, the temperature sensor is designed by the principle of metal expansion, the metal can generate a corresponding extension after the environmental temperature changes, so the sensor can perform signal conversion on the reaction in different modes to obtain a temperature change signal, but the temperature change of the lithium battery is emitted from inside to outside, when the internal temperature reaches the height of damaging the battery, the temperature is cooled to a certain extent when being conducted through an air medium in the battery, and then the temperature is further applied to the metal in the sensor, and meanwhile, the thermal expansion of the metal is slower at the beginning, so that when the temperature sensor receives the signal, the temperature in the battery exceeds a threshold value for a long time, and then the problem that irreversible damage is generated to the inside of the battery occurs, so the monitoring use sensor effect of the lithium battery is not very good, and damage to the lithium battery is still caused to a certain extent;
therefore, the invention sets a temperature monitoring component, firstly, the working temperature range of the lithium battery is minus 20-60 degrees, the performance of the battery is reduced and the safety is reduced when exceeding the temperature, therefore, when the internal temperature of the lithium battery is increased due to the reasons of over-voltage charging, over-temperature of the battery core, over-temperature of the box body and the like, the temperature is firstly conducted to the inner wall of the fixed box 1 and then conducted to the glass box 51 in the protective shell 5, when the mercury in the glass box 51 receives the temperature, the thermal expansion begins to happen, the piston rod 54 in the pipe 53 is extruded, when the temperature exceeds 60 degrees, the piston rod 54 is propped against the pressure sensor 516 on the column sealing plate 2, the pressure sensor 516 receives a signal and then energizes the buzzer 3, thereby alarming the buzzer 3 to remind workers, the working state of the lithium battery is overtemperature, damage can be caused to the lithium battery, the accurate use range of mercury liquid in the process is 0-100 ℃, certain errors are caused after the mercury liquid exceeds 100 ℃, the lithium battery can be monitored, mercury is sensitive to temperature, the expansion is quicker, the temperature change of the lithium battery can be timely sensed, when the lithium battery does not reach more than 60 ℃, the piston rod 54 can not squeeze the pressure sensor 516, therefore, the working temperature of the lithium battery can be better and more rapidly monitored, the lithium battery can be timely protected, the effect of prolonging the service life of the lithium battery is achieved, and meanwhile, the problem that the temperature inside the lithium battery is far beyond a threshold value due to slow sensing of the temperature sensor is solved, so that the lithium battery is irreversibly damaged is solved.
As shown in fig. 9, in this embodiment, a rubber ring 517 is sleeved on the outer surface of each pressure sensor 516, the rubber ring 517 is fixedly connected to the lower surface of the sealing plate 2, and the rubber ring 517 is used for protecting the pressure sensor 516.
Specifically, in order to avoid damage caused by collision during the use of the pressure sensor 516, the outer surface of the pressure sensor 516 is sleeved with a rubber ring 517, so that the effect of protecting the pressure sensor 516 is achieved, and meanwhile, the bottom end of the rubber ring 517 is arc-shaped to play a role in guiding the piston rod 54, so that the piston rod 54 more accurately props against the pressure sensor 516.
As shown in fig. 4 and 5, a bottom plate 512 is disposed below the protective housing 5 in this embodiment, a collecting box 55 is disposed on the upper surface of the bottom plate 512, a fixing net 511 is fixedly connected to the upper surface of the collecting box 55, the fixing net 511 is abutted to the bottom end of the protective housing 5, and the cross sections of the collecting box 55 and the fixing net 511 are the same as the cross section of the protective housing 5.
Specifically, when using this lithium cell, put into the protecting crust 5 earlier with glass box 51, put into the in-process of protecting crust 5, the bottom of glass box 51 can with collect the fixed network 511 butt on the box 55, fixed network 511 is the elastic rubber net, can protect the bottom of glass box 51 to a certain extent, but in order to prevent the in-process of using the lithium cell because of glass box 51 damage, lead to the mercury to flow, cause environmental pollution, set up the box 55 in the bottom of protecting crust 5, avoid this problem, reach the effect that prevents mercury volatilize.
As shown in fig. 6, two sides of the bottom plate 512 of the present embodiment are rotatably provided with rotation plates 513, one end of each rotation plate 513 close to the collection box 55 is fixedly connected with an insertion block 514, the collection box 55 is provided with insertion grooves 515 corresponding to the positions of each insertion block 514, and the insertion blocks 514 are clamped with the insertion grooves 515.
Specifically, during the use of the collecting box 55, since the cross section of the collecting box 55 is the same as that of the protecting case 5, but the collecting box 55 is removable from the bottom plate 512, in order to fix the collecting box 55 and prevent the collecting box 55 from being deviated due to some collision, the insert 514 of the two rotating plates 513, which are close to each other, can be inserted into the insert groove 515 of the outer surface of the collecting box 55 during the rotation of the rotating plates 513 toward the collecting box 55 by rotating the rotating plates 513 on both sides of the bottom plate 512, and since the rotating plates 513 are elastically rotated to be provided on the bottom plate 512, the effect of accurately fixing the collecting box 55 on the lower surface of the protecting case 5 is achieved, and at the same time, the collecting box 55 can stably collect mercury liquid when the glass box 51 is broken.
As shown in fig. 5, the first cavity 56 is provided in the collecting box 55 in this embodiment, two positioning columns 57 are fixedly connected to one side of the collecting box 55, one end of each positioning column 57 in the first cavity 56 is fixedly connected with a connecting block 59, the connecting block 59 is L-shaped, one end of the connecting block 59 is abutted to the bottom wall of the collecting box 55, the other end of the connecting block 59 is fixedly connected with the positioning column 57, one ends of the two positioning columns 57, which are far away from the collecting box 55, are connected with connecting wires 58 through threads, one ends of the two connecting wires 58, which are far away from the positioning columns 57, are fixedly connected with the same water sensor 510, and the water sensor 510 is fixedly connected to the inner wall of the fixing box 1.
Specifically, when the glass box 51 is damaged, mercury is collected by the collecting box 55, and because the mercury has a high density and a conductive effect, the mercury flows to the bottom wall of the collecting box 55 to contact with the two connecting blocks 59, the two connecting blocks 59 are the positive and negative poles of the water immersion sensor 510, the water immersion sensor 510 is connected with the positioning column 57 and the connecting blocks 59 through the connecting lines 58, then the water immersion sensor 510 is electrified, the buzzer 3 is electrified after the water immersion sensor 510 is triggered, so that an alarm is given, a user timely knows that an abnormal condition occurs inside, and the lithium battery needs to be checked.
As shown in fig. 5, in this embodiment, a rubber block 518 is fixedly connected to the inner wall of the protective housing 5, the top end of the rubber block 518 is arc-shaped, and the rubber block 518 is used for placing the protective glass box 51.
Specifically, when the glass box 51 is placed in the protective shell 5, one side in the protective shell 5 is provided with the rubber block 518 for protecting the glass box 51, and simultaneously the top of the rubber block 518 is arc-shaped for guiding the placement of the glass box 51, and the other side of the glass box 51 is directly abutted with one side, close to the battery block 4, of the fixed box 1, so that the measurement is more accurate and timely.
Example two
As shown in fig. 1 to 9, comparative example one, in which another embodiment of the present invention is: a humidity monitoring assembly is arranged between the two temperature monitoring assemblies, and comprises a positioning rod 6, wherein the positioning rod 6 is fixedly connected to the inner wall of the fixed box 1; a rotating lever 61 rotatably provided at the top end of the positioning lever 6; the bottom rod 62 is fixedly connected to one end of the rotating rod 61, the bottom end of the bottom rod 62 is fixedly connected with the hook block 63, and a drying agent bag 64 is arranged in the hook block 63; and a clamping block 65 fixedly connected with the upper surface of the other end of the rotating rod 61, a clamping groove 67 is formed in the position of the sealing plate 2 corresponding to the clamping block 65, and a fixed block 66 is fixedly connected with the other end of the lower surface of the rotating rod 61 corresponding to the bottom rod 62.
Specifically, in the process of using the lithium battery, the humidity inside the lithium battery is also monitored in time, the influence of the humidity on the lithium battery is prevented, when the humidity in the lithium battery rises, the desiccant bag 64 absorbs the moisture in the air until the moisture is absorbed to be the same as the humidity in the battery, the mass of the desiccant bag 64 can be gradually increased in the absorption process, thereby driving the rotating rod 61 to rotate, the fixed blocks 66 at the two ends of the rotating rod 61 and the desiccant bag 64 are the same in mass under the condition of being completely dried, the rotating rod 61 can enable the other end of the rotating rod 61 to move upwards after inclining towards one end of the desiccant bag 64, after the humidity in the lithium battery reaches a threshold value, the humidity of the desiccant bag 64 can drive the rotating rod 61 to incline by a certain angle, so that the clamping block 65 on the upper surface of the other end of the rotating rod 61 is clamped with the clamping groove 67 arranged on the sealing plate 2, and the positioning rod 6 is connected with the battery block 4.
As shown in fig. 8, in this embodiment, a cooling box 7 is disposed between every two battery blocks 4, a cooling liquid is disposed in the cooling box 7, a handle 71 is fixedly connected to the upper surface of the cooling box 7, a sealing cover 72 is fixedly connected to one end of the cooling box 7, and the sealing cover 72 is used for replacing the cooling liquid.
Specifically, in the process of using the lithium battery, in the long-term use, certain cooling needs to be carried out on the lithium battery, so that the service life of the lithium battery can be prolonged, the cooling box 7 is placed between every two lithium batteries, the cooling effect on the lithium battery is achieved through cooling liquid in the cooling box 7, and meanwhile the cooling box 7 is used for replacing and filling the cooling liquid in the cooling box 7 through the sealing cover 72.
As shown in fig. 2, a limit groove 11 is formed at one end of the fixing box 1 in this embodiment, a limit block 12 is fixedly connected to the position of the sealing plate 2 corresponding to the limit groove 11, the limit block 12 is made of magnetic material, the bottom wall of the limit groove 11 is also made of magnetic material, and the limit block 12 is clamped with the limit groove 11.
Specifically, in the process of using the lithium battery, after the monitoring devices such as the glass box 51 are installed, the sealing plate 2 is required to be closed, the limiting block 12 at one end of the sealing plate 2 is driven to be clamped with the limiting groove 11 formed in the corresponding position of the fixed box 1 by rotating the sealing plate 2, the limiting block 12 and the bottom wall of the limiting groove 11 are all arranged through magnetic materials, and the limiting block 12 and the bottom wall of the limiting groove 11 can be magnetically attracted to achieve the effect of better closing the sealing plate 2.
As shown in fig. 1, the upper surface of the fixing box 1 of this embodiment is provided with a first groove body 21, one side of the first groove body 21 is rotatably provided with a rotating column 23, two ends of the rotating column 23 are respectively sleeved with a torsion spring 22, the circumferential surface of the rotating column 23 is fixedly connected with a handle 24, two sides of the fixing box 1 are rotatably provided with two grips 25, and the grips 25 are convenient for transferring the lithium battery.
Specifically, when opening closing plate 2, at first pull up the handle 24 in the first cell body 21 on the closing plate 2, handle 24 can drive the rotation post 23 and rotate, and the rotation post 23 can make the torsional spring 22 at both ends warp, then opens closing plate 2, after loosening handle 25 again, handle 25 can rebound in first cell body 21 automatically through the torsion of torsional spring 22 to accomplish the process of opening closing plate 2, simultaneously for more conveniently transporting the lithium cell, rotate in the both sides of fixed box 1 and be provided with two handles 25, the transportation of staff of being convenient for.
In the process of using the existing monitoring device, as the temperature sensor is arranged on the inner wall of the shell and is designed through the principle of metal expansion, the metal can generate a corresponding extension after the environmental temperature changes, so the sensor can perform signal conversion on the reaction in different modes to obtain a temperature change signal, but the temperature change of the lithium battery is emitted from inside to outside, when the internal temperature reaches the height of damaging the battery, the temperature is cooled to a certain extent when being conducted through an air medium in the battery, and then the temperature is further applied to the metal in the sensor, and meanwhile, the thermal expansion of the metal is slower in deformation at the beginning, so that when the temperature sensor receives the signal, the temperature in the battery exceeds a threshold value for a long time, and the problem that irreversible damage is generated to the inside of the battery occurs, therefore, the effect of the sensor for monitoring the lithium battery is not very good, and the lithium battery is damaged to a certain extent;
therefore, the invention provides a temperature monitoring assembly, when the lithium battery is used, firstly, the glass box 51 is put into the protective shell 5, in the process of putting into the protective shell 5, the bottom end of the glass box 51 can be abutted with the fixed net 511 on the collecting box 55, the fixed net 511 is an elastic rubber net, the bottom of the glass box 51 can be protected to a certain extent, but in order to prevent mercury from flowing out and causing environmental pollution due to the breakage of the glass box 51 in the process of using the lithium battery, the collecting box 55 is arranged at the bottom end of the protective shell 5, so that the problem is avoided, and the effect of preventing mercury volatilization is achieved;
the working temperature range of the lithium battery is minus 20-60 ℃, the performance of the battery is reduced and the safety is reduced when the temperature exceeds the temperature, so that when the internal temperature of the lithium battery is increased due to the reasons of over-voltage charge, over-temperature of a battery core, over-temperature of a box body and the like, the temperature is firstly conducted to the inner wall of the fixed box 1 and then conducted to the glass box 51 in the protective shell 5, when mercury in the glass box 51 receives the temperature, thermal expansion starts to happen, the piston rod 54 in the pipe 53 is extruded, when the temperature exceeds 60 ℃, the pressure sensor 516 on the piston rod 54 pushes the column sealing plate 2, after receiving a signal, the pressure sensor 516 energizes the buzzer 3, thereby giving an alarm to remind workers that the working state of the lithium battery is over-temperature, damage is caused to the lithium battery, a certain error is caused after the temperature exceeds 100 ℃, the temperature sensor is sensitive to the temperature, the expansion is fast, the temperature change of the lithium battery is sensed in time, when the temperature of the lithium battery does not reach 60 ℃, the temperature sensor is not extruded, the temperature sensor is better, the lithium battery is more prolonged, the service life of the lithium battery is prolonged, and the lithium battery is more prolonged, and the problem of the lithium battery is more prolonged, and the lithium battery is more prolonged;
in the use process of the pressure sensor 516, in order to avoid damage caused by collision, the outer surface of the pressure sensor 516 is sleeved with a rubber ring 517, so that the effect of protecting the pressure sensor 516 is achieved, and meanwhile, the bottom end of the rubber ring 517 is arc-shaped to play a role in guiding the piston rod 54, so that the piston rod 54 is more accurately propped against the pressure sensor 516;
in addition, when the glass box 51 is damaged, mercury is collected by the collection box 55, and because the density of mercury is high, the mercury has a conductive effect, and therefore the mercury can be contacted with two connecting blocks 59 when flowing to the bottom wall of the collection box 55, the two connecting blocks 59 are the positive and negative poles of the water immersion sensor 510, the water immersion sensor 510 is connected with the positioning column 57 and the connecting blocks 59 through the connecting lines 58, then the water immersion sensor 510 is electrified, the buzzer 3 is electrified after the water immersion sensor 510 is triggered, so that an alarm is given, a user timely knows that an abnormal condition occurs inside, and the lithium battery needs to be inspected;
simultaneously in the in-process of using this lithium cell, still in time monitor the inside humidity of lithium cell, prevent that humidity from causing the influence to the lithium cell, when humidity in the lithium cell rises, the moisture in the drier bag 64 can absorb to the moisture that keeps the same with in the battery, the quality of in-process drier bag 64 can increase gradually at absorbing, thereby drive dwang 61 and rotate, the fixed block 66 at dwang 61 both ends is the same with the quality of drier bag 64 under the condition of complete dryness, the dwang 61 is to the back of slope of drier bag 64 one end, can make dwang 61 other end upwards move, after the humidity in the lithium cell reaches the threshold value, the humidity of drier bag 64 can drive the fixture block 65 of certain angle of the upper surface of dwang 61 other end and the draw-in groove 67 joint of seting up on the closing plate 2, because locating lever 6 is connected with battery piece 4, the fixture block 65 can give the buzzer 3 on the closing plate 2 with the electricity conduction, thereby send the warning, reach and prompt the user to need to dehumidify the inside the lithium cell, simultaneously when humidity in the lithium cell reaches the threshold value of the lithium cell and the humidity in-cell is not reached the same time, humidity in the lithium cell is not reached in the process of the lithium cell is reduced in the time.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An abnormal alarm device of lithium battery, its characterized in that: the solar cell module comprises a plurality of temperature monitoring assemblies, wherein each temperature monitoring assembly corresponds to one side of each cell block (4), each temperature monitoring assembly comprises a protective shell (5) fixedly connected to the inner wall of a fixed box (1), and a glass box (51) is arranged in the protective shell (5);
two closing plates (52) fixedly connected inside the glass box (51), wherein one closing plate (52) is positioned below the glass box (51), and mercury liquid is placed at the bottom of the glass box (51);
a tube body (53) fixedly connected between the two closing plates (52);
a piston rod (54) slidingly connected in the tube body (53);
and a sealing plate (2) rotatably arranged on the upper surface of the fixed box (1), wherein a pressure sensor (516) is elastically arranged at the position of the sealing plate (2) corresponding to the piston rod (54), and a buzzer (3) is fixedly connected in the middle of the upper surface of the sealing plate (2).
2. The abnormality warning device for a lithium battery according to claim 1, characterized in that: the outer surface of each pressure sensor (516) is sleeved with a rubber ring (517), and the rubber rings (517) are fixedly connected to the lower surface of the sealing plate (2).
3. The abnormality warning device for a lithium battery according to claim 1, characterized in that: the utility model discloses a protection shell, including protection shell (5) and fixed network, the below of protection shell (5) is provided with bottom plate (512), the upper surface of bottom plate (512) is provided with collects box (55), the upper surface rigid coupling of collecting box (55) has fixed network (511), the bottom butt of fixed network (511) and protection shell (5), and the cross-section of collecting box (55) and fixed network (511) is the same with the cross-section of protection shell (5).
4. A lithium battery abnormality warning device according to claim 3, characterized in that: both sides of the bottom plate (512) are rotatably provided with rotating plates (513), one end of each rotating plate (513) close to the collecting box (55) is fixedly connected with an inserting block (514), the collecting box (55) is provided with inserting grooves (515) corresponding to the positions of the inserting blocks (514), and the inserting blocks (514) are clamped with the inserting grooves (515).
5. A lithium battery abnormality warning device according to claim 3, characterized in that: the inside of collecting box (55) has seted up first cavity (56), one side rigid coupling of collecting box (55) has two reference columns (57), every reference column (57) are located the one end of first cavity (56) and all are fixedly connected with connecting block (59), connecting block (59) are "L" shape, the one end and the diapire butt of collecting box (55) of connecting block (59), the other end and reference column (57) rigid coupling of connecting block (59), two the one end that collecting box (55) was kept away from to reference column (57) is all threaded connection has connecting wire (58), and two the one end rigid coupling that reference column (57) was kept away from to connecting wire (58) has same water logging sensor (510), water logging sensor (510) rigid coupling is on the inner wall of fixed box (1).
6. The abnormality warning device for a lithium battery according to claim 1, characterized in that: the inner wall of the protective shell (5) is fixedly connected with a rubber block (518), and the top end of the rubber block (518) is arc-shaped.
7. The abnormality warning device for a lithium battery according to claim 1, characterized in that: a humidity monitoring assembly is arranged between the two temperature monitoring assemblies, the humidity monitoring assembly comprises a positioning rod (6), and the positioning rod (6) is fixedly connected to the inner wall of the fixed box (1);
a rotating rod (61) rotatably arranged at the top end of the positioning rod (6);
a bottom rod (62) fixedly connected to one end of the rotating rod (61), a hook block (63) is fixedly connected to the bottom end of the bottom rod (62), and a drying agent bag (64) is arranged in the hook block (63);
and a clamping block (65) fixedly connected with the upper surface of the other end of the rotating rod (61), a clamping groove (67) is formed in the position, corresponding to the clamping block (65), of the sealing plate (2), and a fixing block (66) is fixedly connected with the lower surface of the rotating rod (61) corresponding to the other end of the bottom rod (62).
8. The abnormality warning device for a lithium battery according to claim 1, characterized in that: every two be provided with cooling box (7) between battery piece (4), be provided with the coolant liquid in cooling box (7), the upper surface rigid coupling of cooling box (7) has handle (71), the one end rigid coupling of cooling box (7) has sealed lid (72).
9. The abnormality warning device for a lithium battery according to claim 1, characterized in that: the utility model discloses a fixed box, including fixed box (1), stop groove (11) have been seted up to one end of fixed box (1), the position rigid coupling that sealing plate (2) correspond stop groove (11) has stopper (12), stopper (12) are magnetic material, the diapire of stop groove (11) is magnetic material too, stopper (12) and stop groove (11) joint.
10. The abnormality warning device for a lithium battery according to claim 1, characterized in that: the utility model discloses a fixed box, including fixed box (1), first cell body (21) have been seted up to the upper surface, one side of first cell body (21) rotates and is provided with rotation post (23), the both ends of rotation post (23) all overlap and are equipped with torsional spring (22), the periphery rigid coupling of rotation post (23) has handle (24), the both sides of fixed box (1) rotate and are provided with two handles (25).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118424478A (en) * | 2024-07-04 | 2024-08-02 | 浙江可得电子科技有限公司 | Temperature sensor and method for monitoring temperature of automobile storage battery by using same |
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