CN113258227A - Battery manufacturing process and battery pack for inspection robot - Google Patents
Battery manufacturing process and battery pack for inspection robot Download PDFInfo
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- CN113258227A CN113258227A CN202110793289.7A CN202110793289A CN113258227A CN 113258227 A CN113258227 A CN 113258227A CN 202110793289 A CN202110793289 A CN 202110793289A CN 113258227 A CN113258227 A CN 113258227A
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- explosion
- air bag
- hole
- proof air
- battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
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- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- 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
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
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- 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
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- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
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- 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a battery manufacturing process and a battery pack for an inspection robot, wherein the process comprises the following steps: step S1, providing a shell, and forming a third through hole on the side wall of the shell; step S2, the battery cell is installed in the shell, and the pole on the top cover of the shell is connected with the battery cell; step S3, providing an explosion-proof air bag, respectively forming a first through hole and a second through hole at a first end and a second end of the explosion-proof air bag, adhering a waterproof breathable film on the first through hole, connecting the first end of the explosion-proof air bag with a shell, and enabling the third through hole and the interior of the explosion-proof air bag to realize an air passage through the waterproof breathable film; step S4, injecting liquid, and plugging the second through hole; step S5, formation; step S6, opening the second through hole and discharging the gas in the explosion-proof air bag; and step S7, folding the explosion-proof air bag to enable the explosion-proof air bag to be in a contraction state and block the second through hole. The process has the characteristic of high liquid injection efficiency.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery manufacturing process and a battery pack for an inspection robot.
Background
In the daily inspection work of power equipment, the application of robots is increasingly common. The inspection robot is integrated with various electric power detection devices, and can perform inspection tasks on transformer substations, power equipment in plant areas and other electric power facilities all the day. The walking of robot and electric power check out equipment all supply power through installing the battery package on the robot patrols and examines, and consequently, the security of battery package is very important. Because the inspection robot needs to execute the operation task under the high-temperature and insolation environment, and various power detection equipment on the inspection robot is used for a long time, the temperature in the battery pack is higher. The battery pack is internally provided with a plurality of batteries, and the high-temperature environment and long-term charge and discharge can cause the gas generated in the batteries to bulge, even cause the explosion danger caused by the pressure relief failure of the batteries. The conventional battery is generally decompressed by arranging an explosion-proof hole on a top cover of a battery shell so as to ensure the use safety of the battery. The production of the battery needs two times of electrolyte injection operation, the injection amount of the first time injected electrolyte is less than the amount required by design, and after formation, all gas generated in the battery is discharged and then the second time of electrolyte injection is carried out, so that the electrolyte in the battery reaches the amount required by design. The liquid injection efficiency is low, and the production efficiency of the battery is further influenced.
Disclosure of Invention
The invention aims to provide a battery manufacturing process which is high in liquid injection efficiency.
The invention aims to provide a battery pack for an inspection robot, which is good in heat dissipation performance and good in explosion-proof effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
the battery manufacturing process comprises the following steps:
step S1, providing a shell, and forming a third through hole on the side wall of the shell;
step S2, installing the battery cell in the shell, and connecting the pole on the top cover of the shell with the battery cell;
step S3, providing an explosion-proof air bag, respectively forming a first through hole and a second through hole at a first end and a second end of the explosion-proof air bag, adhering a waterproof breathable film on the first through hole, connecting the first end of the explosion-proof air bag with the shell, and enabling the third through hole and the interior of the explosion-proof air bag to realize an air passage through the waterproof breathable film;
step S4, injecting liquid, and plugging the second through hole;
step S5, formation;
step S6, opening the second through hole and discharging the gas in the explosion-proof air bag;
and step S7, folding the explosion-proof air bag to enable the explosion-proof air bag to be in a contraction state, and blocking the second through hole.
Further, in step S4, electrolyte is injected into the case through an injection hole located at the top of the case, and the injection hole is closed after the injection.
Further, in step S5, the side of the housing on which the explosion-proof bag is provided is placed upward.
Provides a battery pack for an inspection robot, which comprises a box body and a plurality of batteries arranged in the box body, the box body is provided with an accommodating cavity, a plurality of batteries are stacked in the accommodating cavity along the length direction of the accommodating cavity, at least one cavity wall of the accommodating cavity is spaced from the batteries along the width direction of the accommodating cavity, so that a heat dissipation channel is formed between the battery and the cavity wall, the battery comprises a shell and a third through hole arranged on one side surface of the shell, an explosion-proof air bag is arranged on one side surface of the shell close to the heat dissipation channel, a first through hole and a waterproof and breathable film covering the first through hole are arranged at the first end of the explosion-proof air bag, the interior of the shell is communicated with the interior of the explosion-proof air bag through the first through hole and the third through hole, and allowing gas inside the housing to pass through the waterproof breathable membrane into the interior of the explosion-proof air bag.
Furthermore, the second end of the explosion-proof air bag is detachably provided with an air plug, the air plug is used for plugging a second through hole formed in the second end of the explosion-proof air bag, and the first end of the explosion-proof air bag is opposite to the second end.
Furthermore, the explosion-proof air bag has a first state and a second state, and in the first state, the second end of the explosion-proof air bag is attached to the side wall of the shell; and in the second state, the gas in the shell enters the explosion-proof air bag so as to make the explosion-proof air bag in a swelling state.
Further, in the second state, the second end of the explosion-proof air bag is spaced from the cavity wall.
Furthermore, a heat-conducting plate is arranged in the accommodating cavity, one side face of the battery, which deviates from the explosion-proof air bag, is abutted against the heat-conducting plate, and the heat-conducting plate is spaced from the cavity wall of the accommodating cavity in the width direction.
Further, two adjacent batteries are provided with a heat conduction silica gel sheet in a clamping manner.
Furthermore, the two ends of the heat dissipation channel can be communicated with an air inlet and an air outlet of the inspection robot respectively.
Compared with the prior art, the invention has the beneficial effects that:
according to the battery manufacturing process and the battery pack for the inspection robot, the amount of electrolyte required by design is injected into the shell at one time, and gas generated during formation is collected through the explosion-proof air bag. Meanwhile, a waterproof breathable film is arranged between the third through hole in the shell and the first through hole of the explosion-proof air bag, and electrolyte can be prevented from flowing into the explosion-proof air bag in the manufacturing process.
Drawings
Fig. 1 is a schematic diagram of a battery pack of an embodiment.
Fig. 2 is a schematic diagram of a battery of an embodiment.
Fig. 3 is a partial sectional view of a battery of an embodiment.
In the figure:
1. a box body; 11. a first heat dissipation channel; 12. a second heat dissipation channel; 13. a heat conducting plate; 2. a battery; 20. a housing; 21. an explosion-proof air bag; 211. a first through hole; 212. a second through hole; 213. an air storage chamber; 214. a bending section; 22. a pole column; 23. a third through hole; 24. a waterproof breathable film; 25. and (7) bonding the layers.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, the battery manufacturing process provided by the present invention is used for manufacturing a battery 2, and includes the following steps:
step S1, providing a shell 20, and forming a third through hole 23 on the side wall of the shell 20;
step S2, installing the battery cell in the shell 20, and connecting the pole 22 on the top cover of the shell 20 with the battery cell;
step S3, providing an explosion-proof air bag 21, respectively forming a first through hole 211 and a second through hole 212 at a first end and a second end of the explosion-proof air bag 21, adhering a waterproof breathable film 24 on the first through hole 211, connecting the first end of the explosion-proof air bag 21 with the shell 20, and enabling the third through hole 23 and the interior of the explosion-proof air bag 21 to realize an air passage through the waterproof breathable film 24;
step S4, injecting liquid, and plugging the second through hole 212;
step S5, formation;
step S6 of opening the second through hole 212 and discharging the gas in the explosion-proof bag 21;
step S7 is folding the explosion-proof bag 21 to make the explosion-proof bag 21 in a contracted state, and closing the second through hole 212.
It can be understood that, in the manufacturing process of the battery 2, since gas is generated during the formation, half of the electrolyte needs to be injected into the case 20 during the injection, and the electrolyte needs to be filled into the case 20 after the gas generated during the formation is exhausted. In this embodiment, an explosion-proof bag 21 is disposed on a side wall of the housing 20, a waterproof breathable film 24 is covered on the first through hole 211 of the explosion-proof bag 21, the gas in the housing 20 can pass through the waterproof breathable film 24 and enter the explosion-proof bag 21, and the generated gas is stored by the explosion-proof bag 21. Therefore, the electrolyte is filled in one time only when the liquid is injected, which is beneficial to improving the liquid injection efficiency.
Specifically, in step S3, the first end of the airbag 21 is bonded to the housing 20 by the adhesive layer 25. The adhesive layer 25 is annularly distributed on the periphery of the first through hole 211.
In step S4, the electrolyte is injected, that is, the electrolyte is injected into the case 20 of the battery 2. The top of the housing 20 is provided with a liquid injection hole through which electrolyte is injected into the housing 20, and the injection amount of the electrolyte is flexibly selected according to the actual design index of the battery 2. And sealing the liquid injection hole after liquid injection. In this embodiment, the electrolyte is injected into the case 20 at one time. And the second through hole 212 is plugged by an air plug after liquid injection.
In step S5, formation, in which the electrolyte and the battery cell undergo a chemical reaction. During the formation process, gas is generated inside the battery 2, and the gas passes through the third through hole 23 and passes through the waterproof breathable film 24 to enter the gas storage chamber 213 of the explosion-proof gas bag 21. The explosion-proof bag 21 receives the gas, the gas storage chamber 213 is inflated, and the explosion-proof bag 21 is in an inflated state. In order to facilitate the gas to enter the gas storage chamber 213, the side of the housing 20 provided with the explosion-proof bag 21 is placed upward so that the gas generated during the formation process enters the interior of the explosion-proof bag 21 through the third through hole 23.
After the formation is completed, the second through hole 212 of the explosion-proof bag 21 is opened to discharge the gas generated by the formation collected in the interior thereof. Finally, the explosion-proof air bag 21 is folded, and a bending part 214 which is bent back and forth is formed on the side wall of the explosion-proof air bag 21, so that the explosion-proof air bag 21 is in a contraction state, and the space occupied by the explosion-proof air bag 21 is reduced.
The remarkable effects of the embodiment are as follows: the battery 2 manufactured by the process injects the electrolyte required by design into the shell 20 at one time, so that the injection frequency is reduced, and the injection efficiency is high. Meanwhile, a waterproof and breathable film 24 is arranged between the third through hole 23 on the shell 20 and the first through hole 211 of the explosion-proof air bag 21, so that electrolyte can be prevented from flowing into the explosion-proof air bag 21 in the manufacturing process.
As shown in fig. 1 to 3, the invention further provides a battery pack for the inspection robot, which is used for being installed on the inspection robot, and the battery pack supplies power to the walking of the inspection robot and the power inspection equipment on the inspection robot. The battery package includes box 1 and sets up a plurality of batteries 2 in box 1, and box 1 has the chamber that holds, and a plurality of batteries 2 set up in holding the intracavity along the length direction range upon range of the chamber that holds, along the width direction who holds the chamber, hold at least one chamber wall and the battery 2 interval in chamber to make and form heat dissipation channel between battery 2 and the chamber wall. The battery 2 comprises a shell 20 and a third through hole 23 arranged on one side surface of the shell 20, an explosion-proof air bag 21 is arranged on one side surface of the shell 20 close to a heat dissipation channel, a first through hole 211 and a waterproof breathable film 24 covering the first through hole 211 are arranged at the first end of the explosion-proof air bag 21, the interior of the shell 20 is communicated with the interior of the explosion-proof air bag 21 through the first through hole 211 and the third through hole 23, and gas in the shell 20 can pass through the waterproof breathable film 24 to enter the interior of the explosion-proof air bag 21. It can be understood that the battery 2 includes a housing 20 and a battery cell installed in the housing 20, the housing 20 includes a housing body and a top cover disposed at one end of the housing body, a cavity for accommodating the battery cell and the electrolyte is formed between the housing body and the top cover, a terminal 22 for connecting with an external device is disposed on the top cover, the terminal 22 includes a positive terminal and a negative terminal, and the two terminals 22 are electrically connected to the battery cell in the cavity. The battery 2 has a risk of swelling during operation, that is, a large amount of gas is generated inside the battery 2, and the gas causes a sharp increase in the pressure inside the battery 2, so that the battery 2 swells and explodes seriously. When gas is generated in the battery 2, the gas can sequentially pass through the third through hole 23, the waterproof breathable film 24 and the first through hole 211 to enter the explosion-proof air bag 21, the explosion-proof air bag 21 collects the gas, and the pollution to the surrounding environment caused by gas discharge can be avoided. The upper cover of the first through hole 211 is provided with a waterproof breathable film 24, the waterproof breathable film 24 can allow gas to pass through and can prevent electrolyte inside the battery 2 from being discharged together with the gas, and pollution to external equipment caused by electrolyte discharge can be avoided.
In this embodiment, the case 1 has a rectangular parallelepiped structure, and the plurality of batteries 2 are stacked in the accommodating chamber of the case 1 along the length direction of the case 1 (i.e., the length direction of the accommodating chamber). The number of the batteries 2 can be selected correspondingly according to design indexes such as power supply current, voltage and power of the inspection robot. Two chamber walls of the width direction who holds the chamber all with battery 2 interval to make battery 2's both sides form first heat dissipation channel 11 and second heat dissipation channel 12 respectively, heat dissipation channel's effect lies in supplying the circulation of air, utilizes the air and holds battery 2 of intracavity to carry out the heat exchange, realizes the heat dissipation cooling to whole battery package, and then guarantees the safe handling of battery package. The explosion-proof air bag 21 is positioned at one side of the battery 2 close to the first heat dissipation channel 11, when the battery 2 is decompressed, the gas in the explosion-proof air bag 21 enters the interior of the explosion-proof air bag 21 and the volume of the explosion-proof air bag 21 is increased, namely, the explosion-proof air bag 21 is in an expansion state. The first heat dissipation channel 11 can provide a space for expansion of the explosion-proof bag 21.
Specifically, the second end of the explosion-proof bag 21 is detachably provided with an air plug, the air plug is used for plugging the second through hole 212 formed in the second end of the explosion-proof bag 21, and the first end of the explosion-proof bag 21 is opposite to the second end. A second through hole 212 is formed at a second end of the explosion-proof bag 21, and functions to release gas inside the explosion-proof bag 21.
Specifically, the explosion-proof bag 21 has two states, in the first state, the explosion-proof bag 21 is in a contracted state, and the second end of the explosion-proof bag 21 is attached to the side wall of the housing 20; in the second state, the explosion-proof bag 21 is in the inflated state, and the gas inside the housing 20 enters the inside of the explosion-proof bag 21. It can be understood that the explosion-proof bag 21 is located in the first heat dissipation channel 11, and when the explosion-proof bag 21 is in the contracted state, the second end of the explosion-proof bag 21 is attached to the housing 20, so as to prevent the explosion-proof bag 21 from occupying the space of the first heat dissipation channel 11 and affecting the air circulation in the first heat dissipation channel 11. When gas is generated inside the battery 2, the gas enters the inside of the explosion-proof bag 21, and the explosion-proof bag 21 is inflated and accommodated in the first heat dissipation channel 11. In this embodiment, the explosion-proof bag 21 is a cylindrical tube structure, the first through hole 211 and the second through hole 212 are respectively disposed on two opposite end surfaces of the explosion-proof bag 21, the sidewall of the explosion-proof bag 21 is provided with a bending portion 214, and the explosion-proof bag 21 can be conveniently folded by the bending portion 214, so that the second end of the explosion-proof bag 21 can be tightly attached to the housing 20 in the contracted state.
In order to ensure that the gas in the battery 2 can smoothly enter the explosion-proof air bag 21 when the battery 2 is decompressed, the second end of the explosion-proof air bag 21 is spaced from the cavity wall in the second state. It can be understood that the second end of the explosion-proof air bag 21 is spaced from the cavity wall, so that the space of the first heat dissipation channel 11 is enough to accommodate the explosion-proof air bag 21, and the explosion-proof air bag 21 can be smoothly inflated to a maximum volume state.
Specifically, a heat conducting plate 13 is arranged in the accommodating cavity, one side face of the battery 2 departing from the explosion-proof air bag 21 is abutted against the heat conducting plate 13, and the heat conducting plate 13 is spaced from the cavity wall in the width direction of the accommodating cavity. In this embodiment, the heat conducting plate 13 is disposed along the length direction of the accommodating chamber, one side of the plurality of batteries 2 departing from the anti-explosion air bag 21 is abutted against the heat conducting plate 13, and one side of the heat conducting plate 13 departing from the batteries 2 is abutted against the chamber wall of the accommodating chamber, so that the second heat dissipation channel 12 is formed between the heat conducting plate 13 and the chamber wall. The heat conducting plate 13 has good heat conducting performance, and the heat conducting plate 13 conducts the heat generated by the battery 2 to the air in the second heat dissipation channel 12, and the heat dissipation is realized through the circulation of the air in the second heat dissipation channel 12. The heat conducting plate 13 is provided to facilitate mounting and fixing of the plurality of batteries 2. Meanwhile, when the temperature of one or a part of the batteries 2 in the plurality of batteries 2 is sharply increased, the heat on the part of the batteries 2 can be transferred to the whole heat conducting plate 13, so that the heat radiating area is increased, the heat radiating efficiency is improved, and safety accidents caused by the sharp temperature increase of the batteries 2 are avoided.
Specifically, in the plurality of cells 2, a thermally conductive silicone sheet is sandwiched between two adjacent cells 2. It can be understood that, the heat-conducting silica gel sheet is clamped between two adjacent batteries 2, and one end of the heat-conducting silica gel sheet is connected with the heat-conducting plate 13, so that the heat in the middle of the battery 2 is transferred to the heat-conducting plate 13 through the heat-conducting silica gel sheet. Simultaneously, the heat conduction silica gel piece has elasticity, and when battery 2 took place to swell, the accessible heat conduction silica gel piece cushions, avoids taking place that the battery 2 that swells causes the extrusion to battery 2 on every side.
Specifically, the two ends of the heat dissipation channel can be communicated with an air inlet and an air outlet of the inspection robot respectively. In this embodiment, the inspection robot is provided with an air inlet and an air outlet. And two side walls in the length direction of the box body 1 are provided with communicating ports communicated with the heat dissipation channel, and the communicating ports are respectively communicated with an air inlet and an air outlet of the inspection robot. So that the heat dissipation channel is communicated with the outside of the inspection robot, external air can enter the heat dissipation channel through the air inlet, and the air is discharged from the air outlet after being subjected to heat exchange with the battery 2 or the heat conduction plate 13.
The remarkable effects of the embodiment are as follows: the heat dissipation treatment of the battery pack is realized by spacing the battery 2 from the cavity wall of the accommodating cavity to form a heat dissipation channel. The battery 2 is provided with an explosion-proof air bag 21 communicated with the inside of the battery 2 on the side wall facing the heat dissipation channel, and the explosion-proof air bag 21 is used for collecting gas exhausted from the inside of the battery 2 to realize pressure relief of the battery 2. The structure can avoid the pollution of the discharged gas caused by pressure relief to the surrounding environment. Meanwhile, a waterproof breathable film 24 is arranged between the explosion-proof air bag 21 and the shell 20 of the battery 2, so that electrolyte in the battery 2 is prevented from being discharged along with gas when the pressure is relieved, and pollution to external equipment is avoided. Compared with the existing explosion-proof mode, the gas generated in the battery 2 can enter the explosion-proof air bag 21 through the waterproof breathable film 24 for storage, so that the battery 2 is prevented from swelling due to the fact that the gas is accumulated in the shell 20. The presence of the explosion-proof gas bag 21 prevents the accumulation of gas within the housing 20, advantageously avoiding an overpressure of gas within the housing 20. The pressure release mode of this embodiment is gentler, safe, and explosion-proof effectual.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. A battery manufacturing process is characterized by comprising the following steps:
step S1, providing a shell, and forming a third through hole on the side wall of the shell;
step S2, installing the battery cell in the shell, and connecting the pole on the top cover of the shell with the battery cell;
step S3, providing an explosion-proof air bag, respectively forming a first through hole and a second through hole at a first end and a second end of the explosion-proof air bag, adhering a waterproof breathable film on the first through hole, connecting the first end of the explosion-proof air bag with the shell, and enabling the third through hole and the interior of the explosion-proof air bag to realize an air passage through the waterproof breathable film;
step S4, injecting liquid, and plugging the second through hole;
step S5, formation;
step S6, opening the second through hole and discharging the gas in the explosion-proof air bag;
and step S7, folding the explosion-proof air bag to enable the explosion-proof air bag to be in a contraction state, and blocking the second through hole.
2. The battery manufacturing process according to claim 1, wherein in step S4, the electrolyte is injected into the case through an injection hole located at the top of the case, and the injection hole is closed after injection.
3. The process of claim 1, wherein in step S5, the side of the housing provided with the explosion-proof air bag is placed facing upward.
4. A battery pack for inspection robots, which comprises a box body and a plurality of batteries arranged in the box body and manufactured according to the battery manufacturing process of any one of claims 1 to 3, wherein the box body is provided with a containing cavity, the batteries are arranged in the containing cavity in a stacking manner along the length direction of the containing cavity and along the width direction of the containing cavity, at least one cavity wall of the containing cavity is spaced from the batteries so as to form a heat dissipation channel between the batteries and the cavity wall, each battery comprises a shell and a third through hole arranged on one side surface of the shell, an anti-explosion air bag is arranged on one side surface of the shell close to the heat dissipation channel, a first through hole and a waterproof breathable film covered on the first through hole are arranged at the first end of the anti-explosion air bag, the inner part of the shell is communicated with the third through hole through the first through hole, and allowing gas inside the housing to pass through the waterproof breathable membrane into the interior of the explosion-proof air bag.
5. The battery pack for the inspection robot according to claim 4, wherein a gas plug is detachably arranged at the second end of the explosion-proof air bag and used for plugging a second through hole formed in the second end of the explosion-proof air bag, and the first end of the explosion-proof air bag is opposite to the second end.
6. The battery pack for the inspection robot according to claim 5, wherein the explosion-proof air bag has a first state in which a second end of the explosion-proof air bag abuts against a sidewall of the housing and a second state; and in the second state, the gas in the shell enters the explosion-proof air bag so as to make the explosion-proof air bag in a swelling state.
7. The battery pack for the inspection robot according to claim 6, wherein in the second state, the second end of the explosion-proof air bag is spaced from the chamber wall.
8. The battery pack for the inspection robot according to claim 4, wherein a heat-conducting plate is disposed in the accommodating cavity, a side surface of the battery departing from the explosion-proof air bag abuts against the heat-conducting plate, and the heat-conducting plate is spaced from the cavity wall of the accommodating cavity in the width direction.
9. The battery pack for the inspection robot according to claim 4, wherein a heat-conducting silicone sheet is clamped between two adjacent batteries.
10. The battery pack for the inspection robot according to claim 4, wherein two ends of the heat dissipation channel can be respectively communicated with an air inlet and an air outlet of the inspection robot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110793289.7A CN113258227B (en) | 2021-07-14 | 2021-07-14 | Battery manufacturing process and battery pack for inspection robot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110793289.7A CN113258227B (en) | 2021-07-14 | 2021-07-14 | Battery manufacturing process and battery pack for inspection robot |
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| CN113258227A true CN113258227A (en) | 2021-08-13 |
| CN113258227B CN113258227B (en) | 2021-10-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113258227B (en) | 2021-10-15 |
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Effective date of registration: 20230323 Address after: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee after: China Southern Power Grid Power Technology Co.,Ltd. Address before: No. 66, Gongye West Road, Wujiang District, Shaoguan City, Guangdong Province Patentee before: SHAOGUAN POWER SUPPLY BUREAU, GUANGDONG POWER GRID Co.,Ltd. |