CN116454477B - Temperature control module and temperature control method for outdoor energy storage power supply battery - Google Patents
Temperature control module and temperature control method for outdoor energy storage power supply battery Download PDFInfo
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- CN116454477B CN116454477B CN202310717488.9A CN202310717488A CN116454477B CN 116454477 B CN116454477 B CN 116454477B CN 202310717488 A CN202310717488 A CN 202310717488A CN 116454477 B CN116454477 B CN 116454477B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 119
- 230000017525 heat dissipation Effects 0.000 claims abstract description 11
- 230000000712 assembly Effects 0.000 claims abstract description 3
- 238000000429 assembly Methods 0.000 claims abstract description 3
- 238000009423 ventilation Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 16
- 125000006850 spacer group Chemical group 0.000 claims description 16
- 238000004321 preservation Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 7
- 238000004880 explosion Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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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
- H01M10/615—Heating or keeping warm
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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
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
- H01M10/6565—Gases with forced flow, e.g. by blowers with recirculation or U-turn in the flow path, i.e. back and forth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
-
- 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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
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- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
Abstract
The application relates to a temperature control module and a temperature control method for an outdoor energy storage power supply battery, wherein the temperature control module comprises a battery module, an explosion-proof layer and a shell, a first gap is formed between the explosion-proof layer and the battery module, and a second gap is formed between the explosion-proof layer and the shell; a plurality of annular air channels and fan assemblies are arranged in the first gap; a heating pipe and a supporting rod are arranged in the annular air duct in a suspending way; the length direction of the heating pipe is consistent with the wind direction of the annular air duct where the heating pipe is positioned; the outer surface of the heating tube is provided with an opening, the outer sliding sleeve of the heating tube is provided with a sliding sleeve for shielding or opening the opening, both ends of the sliding sleeve are provided with horn-shaped flanges, and the horn mouth of the flanges faces towards one end deviating from the sliding sleeve; a low-temperature heating wire and a battery for supplying power to the low-temperature heating wire are arranged in the heating tube; by applying the method provided by the application, when the battery module is used in an external cold environment, the battery module can be kept warm for a long time, and meanwhile, the battery module has the explosion-proof and heat dissipation protection functions in a normal use state.
Description
Technical Field
The application relates to the technical field of energy storage power supplies, in particular to a battery temperature control module and a temperature control method for an outdoor energy storage power supply.
Background
The energy storage power supply is a high-capacity mobile power supply, can store electric energy, drives small-power electric appliances and charges various electric appliances. The on-line UPS has all functions of on-line UPS, provides stable power protection for key loads, optimizes UPS performance, and reasonably saves the capital investment of oil pumps, reactive compensation equipment and voltage stabilizing equipment. The portable energy storage power supply is widely applied to outdoor travel, emergency disaster prevention and other scenes, and has the characteristics of light weight, large capacity, large power, long service life, strong stability and the like;
at present, the temperature control assembly applied to an outdoor energy storage power supply mainly only has a heat dissipation and cooling function, when the temperature of the energy storage power supply is reduced to a certain temperature in the same day or the outdoor energy storage power supply is carried to an area with lower temperature for use, the risk that the energy storage power supply cannot work normally due to low temperature exists, and a small part of the energy storage power supply is designed with auxiliary electric heating.
Disclosure of Invention
The application aims to solve the technical problems of the prior art, and provides an outdoor energy storage power supply battery temperature control module and an outdoor energy storage power supply battery temperature control method.
The technical scheme adopted for solving the technical problems is as follows:
the outdoor energy storage power supply battery temperature control module is constructed, wherein the outdoor energy storage power supply battery temperature control module comprises a battery module, an explosion-proof layer wrapping the battery module and a shell wrapping the explosion-proof layer, a first gap is reserved between the explosion-proof layer and the battery module, and a second gap is reserved between the explosion-proof layer and the shell; a plurality of annular air channels and fan assemblies forming circulating air in the annular air channels are arranged in the first gap; a strip-shaped heating pipe and a supporting rod for supporting the heating pipe are arranged in the annular air duct in a suspending manner; the length direction of the heating pipe is consistent with the wind direction of the annular air duct where the heating pipe is positioned; the outer side surface of the heating tube is provided with an opening, the outer sliding sleeve of the heating tube is provided with a sliding sleeve for shielding or opening the opening, both ends of the sliding sleeve are provided with horn-shaped flanges, and the horn mouth of the flanges faces towards one end deviating from the sliding sleeve; the heating tube is internally provided with a low-temperature heating wire and a battery for supplying power to the low-temperature heating wire, and the heating tube is provided with a touch switch for controlling the on-off of the low-temperature heating wire; the sliding sleeve is used for triggering the touch switch when closing the corresponding opening in a sliding manner, and the low-temperature heating wire is electrified to run; the heating pipe is communicated with the second gap through a pipeline, and a ventilation assembly for exchanging gas into the heating pipe through the pipeline is arranged in the second gap; the outdoor energy storage power supply battery temperature control module further comprises a first temperature detection unit for detecting the temperature of the battery module, a second temperature detection unit for detecting the external temperature and a control unit, and the fan assembly and the ventilation assembly are electrically connected with and controlled by the control unit.
The application discloses an outdoor energy storage power supply battery temperature control module, wherein a plurality of square frame-shaped spacers are arranged in a first gap in parallel, and the battery module is positioned at the inner frame of the spacers and is connected with the inner wall of the inner frame of the spacers in a sealing way; the annular air duct is formed by the gaps between the adjacent spacers; the fan assembly comprises fans vertically penetrating through the same side edges of the plurality of spacers.
The application relates to an outdoor energy storage power supply battery temperature control module, wherein a pipeline comprises an air inlet pipe and an air outlet pipe which are arranged side by side; the ventilation assembly comprises a first connecting pipe communicated with a plurality of air inlet pipes, a second connecting pipe communicated with a plurality of air outlet pipes, an air inlet pump for introducing air to the first connecting pipe and a cooling assembly for cooling the air introduced to the first connecting pipe.
The application discloses an outdoor energy storage power supply battery temperature control module, wherein the ventilation assembly further comprises an air pump for exhausting air from the second connecting pipe.
The application relates to an outdoor energy storage power supply battery temperature control module, wherein the cooling component is a water cooling unit.
The application discloses an outdoor energy storage power supply battery temperature control module, wherein two sliding rails for sliding a sliding sleeve are arranged on the outer surface of a heating tube, and a touch switch is arranged between the two sliding rails; the inner wall of the sliding sleeve is provided with an extrusion inclined plane for extruding the touch switch, and the top of the extrusion inclined plane is provided with a limiting groove for limiting the touch switch.
The outdoor energy storage power supply battery temperature control method is applied to the outdoor energy storage power supply battery temperature control module, and the implementation method is as follows:
after the energy storage power supply starts to operate, the control unit monitors the temperature of the battery module through the first temperature detection unit and monitors the external temperature through the second temperature detection unit; when the external temperature is lower than the set temperature, judging that the external environment is a cold environment, entering a heat preservation mode, and otherwise, entering a normal mode;
under the heat preservation mode, the control unit controls the fan assembly to operate in the forward direction, forward circulating air is formed in the annular air channels, at the moment, the air in the annular air channels acts on the flange at one end of the sliding sleeve, the sliding sleeve is driven to slide along the heating tube, the touch switch is triggered, the low-temperature heating wire is electrified to operate, the heating tube guides and distributes heat of the low-temperature heating wire, the temperature of the circulating air in the annular air channels is increased, and the battery module which is not operated is preheated and keeps warm for a long time; when the temperature of the battery module reaches a set warning temperature range, the control unit controls the fan assembly to reversely run, wind in the annular air channel acts on a flange at one end of the sliding sleeve at the moment so as to drive the sliding sleeve to slide along the heating tube, the contact switch is separated, an opening on the heating tube is opened, the low-temperature heating wire is powered off, meanwhile, the control unit controls the ventilation assembly to run, ventilation is carried out on the heating tube, outside air is replaced with air in the heating tube, and the annular air channel is cooled by virtue of the action of circulated wind; when the temperature of the battery module is lower than the set normal temperature range, the control unit controls the fan assembly to operate in the forward direction, and the heat preservation state is re-entered.
In a normal mode, the control unit controls the fan assembly to perform preliminary heat dissipation according to reverse operation, and an opening on the heating tube is in an opened state; when the temperature of the battery module reaches a set warning temperature range, the control unit controls the ventilation assembly to operate, ventilates the heating pipe, replaces external air with air in the heating pipe, and forcedly cools the annular air channel by virtue of the action of circulating air; when the electrolyte overflows from the battery module, the electrolyte overflows from the plurality of annular air channels, and meanwhile, the opening, the inner cavity of the heating pipe and the pipeline form a pressure relief channel, so that the pressure is discharged and explosion prevention is carried out.
The application has the beneficial effects that: after the energy storage power supply starts to operate, the control unit monitors the temperature of the battery module through the first temperature detection unit and monitors the external temperature through the second temperature detection unit; when the external temperature is lower than the set temperature, judging that the external environment is a cold environment, entering a heat preservation mode, and otherwise, entering a normal mode;
under the heat preservation mode, the control unit controls the fan assembly to operate in the forward direction, forward circulating air is formed in the annular air channels, at the moment, the air in the annular air channels acts on the flange at one end of the sliding sleeve, the sliding sleeve is driven to slide along the heating tube, the touch switch is triggered, the low-temperature heating wire is electrified to operate, the heating tube guides and distributes heat of the low-temperature heating wire, the temperature of the circulating air in the annular air channels is increased, and the battery module which is not operated is preheated and keeps warm for a long time; when the temperature of the battery module reaches a set warning temperature range, the control unit controls the fan assembly to reversely run, wind in the annular air channel acts on a flange at one end of the sliding sleeve at the moment so as to drive the sliding sleeve to slide along the heating tube, the contact switch is separated, an opening on the heating tube is opened, the low-temperature heating wire is powered off, meanwhile, the control unit controls the ventilation assembly to run, ventilation is carried out on the heating tube, outside air is replaced with air in the heating tube, and the annular air channel is cooled by virtue of the action of circulated wind; when the temperature of the battery module is lower than the set normal temperature range, the control unit controls the fan assembly to operate in the forward direction, and the heat preservation state is re-entered.
In a normal mode, the control unit controls the fan assembly to perform preliminary heat dissipation according to reverse operation, and an opening on the heating tube is in an opened state; when the temperature of the battery module reaches a set warning temperature range, the control unit controls the ventilation assembly to operate, ventilates the heating pipe, replaces external air with air in the heating pipe, and forcedly cools the annular air channel by virtue of the action of circulating air; when the electrolyte overflows from the battery module, the electrolyte overflows from the battery module by means of a plurality of annular air channels, and meanwhile, the opening, the inner cavity of the heating pipe and the pipeline form a pressure release channel, so that pressure is discharged to prevent explosion;
by the method, when the battery module is used in an external cold environment, the battery module can be kept warm for a long time, and meanwhile, the battery module has the explosion-proof and heat dissipation protection functions in a normal use state, can better cope with low-temperature and normal application environments, ensures the overall reliability of an energy storage power supply, and simultaneously has the advantage of improving the safety.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the present application will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained by those skilled in the art without inventive effort:
FIG. 1 is a cross-sectional view of a battery temperature control module for an outdoor energy storage power supply according to a preferred embodiment of the present application;
FIG. 2 is a cross-sectional view of a heat pipe of a battery temperature control module for an outdoor energy storage power supply according to a preferred embodiment of the present application;
fig. 3 is a side view of an outdoor energy storage power supply battery temperature control module fan and a separator according to a preferred embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present application, based on the embodiments of the present application.
Referring to fig. 2 and 3, the outdoor energy storage power supply battery temperature control module of the preferred embodiment of the application includes a battery module 1, an explosion-proof layer 2 wrapping the battery module 1, and a casing 3 (with a heat dissipation hole) wrapping the explosion-proof layer 2, wherein a first gap exists between the explosion-proof layer 2 and the battery module 1, and a second gap exists between the explosion-proof layer 2 and the casing 3; a plurality of annular air channels 40 and a fan assembly 41 for forming circulating air in the plurality of annular air channels are arranged in the first gap; a strip-shaped heating tube 5 and a supporting rod 42 for supporting the heating tube are arranged in the annular air duct 40 in a suspending manner; the length direction of the heating pipe 5 is consistent with the wind direction of the annular air duct where the heating pipe is positioned; an opening 50 is formed in the outer side surface of the heating tube 5, a sliding sleeve 51 for shielding or opening the opening is sleeved outside the heating tube 5, horn-shaped flanges 52 are arranged at two ends of the sliding sleeve 51, and the horn mouth of the flanges 52 faces towards one end deviating from the sliding sleeve; a low-temperature heating wire 53 and a battery 54 for supplying power to the low-temperature heating wire are arranged in the heating tube 5, and a touch switch 55 for controlling the on and off of the low-temperature heating wire is arranged on the heating tube 5; when the sliding sleeve 51 slides to close the corresponding opening 50, the trigger switch 55 is triggered, and the low-temperature heating wire 53 is electrified to run; the heating tube 5 is communicated with a second gap through a pipeline 6, and a ventilation assembly 7 for exchanging gas into the heating tube 5 through the pipeline 6 is arranged in the second gap; the outdoor energy storage power supply battery temperature control module further comprises a first temperature detection unit 8 for detecting the temperature of the battery module, a second temperature detection unit 9 for detecting the outside temperature and a control unit, and the fan assembly 41 and the ventilation assembly 7 are electrically connected with and controlled by the control unit;
after the energy storage power supply starts to run, the control unit monitors the temperature of the battery module through the first temperature detection unit 8 and monitors the external temperature through the second temperature detection unit 9; when the external temperature is lower than the set temperature, judging that the external environment is a cold environment, entering a heat preservation mode, and otherwise, entering a normal mode;
in the heat preservation mode, the control unit controls the fan assembly 41 to operate in the forward direction, forward circulating air is formed in the annular air channels 40, at the moment, the air in the annular air channels acts on the flange 52 at one end of the sliding sleeve 51, the sliding sleeve 51 is driven to slide along the heating tube 5, the touch switch 55 is triggered, the low-temperature heating wire 53 is electrified to operate, the heating tube 5 guides and distributes heat of the low-temperature heating wire, the temperature of the circulating air in the annular air channels 40 is increased, and the battery module 1 which is not operated is preheated and keeps warm for a long time; when the temperature of the battery module (running heating) 1 reaches a set warning temperature range, the control unit controls the fan assembly 41 to run reversely, at the moment, wind in the annular air duct 40 acts on the flange 52 at one end of the sliding sleeve 51 so as to drive the sliding sleeve 51 to slide along the heating tube 5 and separate from the touch switch 55, the opening 50 on the heating tube 5 is opened, the low-temperature heating wire 53 is powered off, and meanwhile, the control unit controls the ventilation assembly 7 to run so as to ventilate the heating tube 5, replace the air outside with the air in the heating tube 5 and cool the annular air duct by virtue of the action of circulating wind; when the temperature of the battery module is lower than the set normal temperature range, the control unit controls the fan assembly to operate in the forward direction, and the heat preservation state is re-entered.
In the normal mode, the control unit controls the fan assembly 41 to perform preliminary heat dissipation according to the reverse operation, and the opening 50 on the heating tube 5 is in an opened state; when the temperature of the battery module reaches the set warning temperature range, the control unit controls the ventilation assembly 7 to operate, ventilates the heating tube 5, replaces external air with air in the heating tube, and forcedly cools the annular air channel by virtue of the action of circulating air; when the electrolyte overflows from the battery module 1, the electrolyte overflows from the plurality of annular air channels 40, and meanwhile, the opening, the inner cavity of the heating pipe and the pipeline form a pressure release channel, so that the pressure is discharged for explosion prevention;
by the method, when the battery module is used in an external cold environment, the battery module can be kept warm for a long time, and meanwhile, the battery module has the explosion-proof and heat dissipation protection functions in a normal use state, can better cope with low-temperature and normal application environments, ensures the overall reliability of an energy storage power supply, and simultaneously has the advantage of improving the safety.
Preferably, a plurality of square frame-shaped spacers 4 are arranged in the first gap in parallel, and the battery module 1 is positioned at the inner frame of the spacers 4 and is in sealing connection with the inner wall of the inner frame of the spacers 4; the gaps between adjacent spacers 4 form an annular air duct 40; the fan assembly 41 includes a fan vertically penetrating the same side of the plurality of spacers; the structure is succinct, and the wholeness is good, separates in space that can be better through a plurality of spacers, ensures radiating homogeneity simultaneously.
Preferably, the pipeline 6 comprises an air inlet pipe 60 and an air outlet pipe 61 which are arranged side by side; the ventilation assembly 7 comprises a first connecting pipe 70 communicated with the plurality of air inlet pipes 60, a second connecting pipe 71 communicated with the plurality of air outlet pipes 61, an air inlet pump 72 for introducing air into the first connecting pipe, and a cooling assembly 73 (preferably a water cooling unit) for cooling the air introduced into the first connecting pipe, and the ventilation assembly 7 further comprises an air extracting pump 74 for extracting air from the second connecting pipe 71; in operation, the intake pump 72 and the exhaust pump 74 are preferably operated alternately, for example: the air is firstly introduced into the annular air duct for 30 seconds by the air inlet pump, and then is pumped by the air extracting pump for 30 seconds, so that the cold air entering the annular air duct can be ensured to be fully integrated, and the energy utilization rate is improved.
Preferably, the outer surface of the heating tube 5 is provided with two sliding rails 56 for sliding of the sliding sleeve, and the touch switch 55 is arranged between the two sliding rails; the inner wall of the sliding sleeve 51 is provided with an extrusion inclined plane 510 for extruding the touch switch 55, and the top of the extrusion inclined plane 510 is provided with a limit groove 511 for limiting the touch switch 55; in the stage of triggering the touch switch 55 by the sliding sleeve 51, the touch switch 55 is gradually extruded by the extrusion inclined plane 510, and finally the touch switch 55 is triggered and enters the limit groove 511, so that the triggering reliability can be effectively ensured, and meanwhile, the touch switch 55 is prevented from easily slipping.
The outdoor energy storage power supply battery temperature control method is applied to the outdoor energy storage power supply battery temperature control module, and the implementation method is as follows:
after the energy storage power supply starts to operate, the control unit monitors the temperature of the battery module through the first temperature detection unit and monitors the external temperature through the second temperature detection unit; when the external temperature is lower than the set temperature, judging that the external environment is a cold environment, entering a heat preservation mode, and otherwise, entering a normal mode;
under the heat preservation mode, the control unit controls the fan assembly to operate in the forward direction, forward circulating air is formed in the annular air channels, at the moment, the air in the annular air channels acts on the flange at one end of the sliding sleeve, the sliding sleeve is driven to slide along the heating tube, the touch switch is triggered, the low-temperature heating wire is electrified to operate, the heating tube guides and distributes heat of the low-temperature heating wire, the temperature of the circulating air in the annular air channels is increased, and the battery module which is not operated is preheated and keeps warm for a long time; when the temperature of the battery module reaches a set warning temperature range, the control unit controls the fan assembly to reversely run, wind in the annular air channel acts on a flange at one end of the sliding sleeve at the moment so as to drive the sliding sleeve to slide along the heating tube, the contact switch is separated, an opening on the heating tube is opened, the low-temperature heating wire is powered off, meanwhile, the control unit controls the ventilation assembly to run, ventilation is carried out on the heating tube, outside air is replaced with air in the heating tube, and the annular air channel is cooled by virtue of the action of circulated wind; when the temperature of the battery module is lower than the set normal temperature range, the control unit controls the fan assembly to operate in the forward direction, and the heat preservation state is re-entered.
In a normal mode, the control unit controls the fan assembly to perform preliminary heat dissipation according to reverse operation, and an opening on the heating tube is in an opened state; when the temperature of the battery module reaches a set warning temperature range, the control unit controls the ventilation assembly to operate, ventilates the heating pipe, replaces external air with air in the heating pipe, and forcedly cools the annular air channel by virtue of the action of circulating air; when the electrolyte overflows from the battery module, the electrolyte overflows from the battery module by means of a plurality of annular air channels, and meanwhile, the opening, the inner cavity of the heating pipe and the pipeline form a pressure release channel, so that pressure is discharged to prevent explosion;
by the method, when the battery module is used in an external cold environment, the battery module can be kept warm for a long time, and meanwhile, the battery module has the explosion-proof and heat dissipation protection functions in a normal use state, can better cope with low-temperature and normal application environments, ensures the overall reliability of an energy storage power supply, and simultaneously has the advantage of improving the safety.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (7)
1. The outdoor energy storage power supply battery temperature control module is characterized by comprising a battery module, an explosion-proof layer wrapping the battery module and a shell wrapping the explosion-proof layer, wherein a first gap exists between the explosion-proof layer and the battery module, and a second gap exists between the explosion-proof layer and the shell; a plurality of annular air channels and fan assemblies forming circulating air in the annular air channels are arranged in the first gap; a strip-shaped heating pipe and a supporting rod for supporting the heating pipe are arranged in the annular air duct in a suspending manner; the length direction of the heating pipe is consistent with the wind direction of the annular air duct where the heating pipe is positioned; the outer side surface of the heating tube is provided with an opening, the outer sliding sleeve of the heating tube is provided with a sliding sleeve for shielding or opening the opening, both ends of the sliding sleeve are provided with horn-shaped flanges, and the horn mouth of the flanges faces towards one end deviating from the sliding sleeve; the heating tube is internally provided with a low-temperature heating wire and a battery for supplying power to the low-temperature heating wire, and the heating tube is provided with a touch switch for controlling the on-off of the low-temperature heating wire; the sliding sleeve is used for triggering the touch switch when closing the corresponding opening in a sliding manner, and the low-temperature heating wire is electrified to run; the heating pipe is communicated with the second gap through a pipeline, and a ventilation assembly for exchanging gas into the heating pipe through the pipeline is arranged in the second gap; the outdoor energy storage power supply battery temperature control module further comprises a first temperature detection unit for detecting the temperature of the battery module, a second temperature detection unit for detecting the external temperature and a control unit, and the fan assembly and the ventilation assembly are electrically connected with and controlled by the control unit.
2. The outdoor energy storage power supply battery temperature control module according to claim 1, wherein a plurality of square frame-shaped spacers are arranged in the first gap in parallel, and the battery module is positioned at the inner frame of the spacers and is in sealing connection with the inner wall of the inner frame of the spacers; the annular air duct is formed by the gaps between the adjacent spacers; the fan assembly comprises fans vertically penetrating through the same side edges of the plurality of spacers.
3. The outdoor energy storage power supply battery temperature control module according to claim 1, wherein the pipeline comprises an air inlet pipe and an air outlet pipe which are arranged side by side; the ventilation assembly comprises a first connecting pipe communicated with a plurality of air inlet pipes, a second connecting pipe communicated with a plurality of air outlet pipes, an air inlet pump for introducing air to the first connecting pipe and a cooling assembly for cooling the air introduced to the first connecting pipe.
4. The outdoor energy storage power supply battery temperature control module of claim 3, wherein the ventilation assembly further comprises an air pump that pumps air from the second connection tube.
5. The outdoor energy storage power supply battery temperature control module of claim 3, wherein the cooling assembly is a water cooling unit.
6. The outdoor energy storage power supply battery temperature control module according to any one of claims 1-5, wherein two sliding rails for sliding the sliding sleeve are arranged on the outer surface of the heating tube, and the touch switch is arranged between the two sliding rails; the inner wall of the sliding sleeve is provided with an extrusion inclined plane for extruding the touch switch, and the top of the extrusion inclined plane is provided with a limiting groove for limiting the touch switch.
7. The outdoor energy storage power supply battery temperature control method is applied to the outdoor energy storage power supply battery temperature control module set according to any one of claims 1-6, and is characterized by comprising the following steps:
after the energy storage power supply starts to operate, the control unit monitors the temperature of the battery module through the first temperature detection unit and monitors the external temperature through the second temperature detection unit; when the external temperature is lower than the set temperature, judging that the external environment is a cold environment, entering a heat preservation mode, and otherwise, entering a normal mode;
under the heat preservation mode, the control unit controls the fan assembly to operate in the forward direction, forward circulating air is formed in the annular air channels, at the moment, the air in the annular air channels acts on the flange at one end of the sliding sleeve, the sliding sleeve is driven to slide along the heating tube, the touch switch is triggered, the low-temperature heating wire is electrified to operate, the heating tube guides and distributes heat of the low-temperature heating wire, the temperature of the circulating air in the annular air channels is increased, and the battery module which is not operated is preheated and keeps warm for a long time; when the temperature of the battery module reaches a set warning temperature range, the control unit controls the fan assembly to reversely run, wind in the annular air channel acts on a flange at one end of the sliding sleeve at the moment so as to drive the sliding sleeve to slide along the heating tube, the contact switch is separated, an opening on the heating tube is opened, the low-temperature heating wire is powered off, meanwhile, the control unit controls the ventilation assembly to run, ventilation is carried out on the heating tube, outside air is replaced with air in the heating tube, and the annular air channel is cooled by virtue of the action of circulated wind; when the temperature of the battery module is lower than the set normal temperature range, the control unit controls the fan assembly to run in the forward direction, and the heat preservation state is re-entered;
in a normal mode, the control unit controls the fan assembly to perform preliminary heat dissipation according to reverse operation, and an opening on the heating tube is in an opened state; when the temperature of the battery module reaches a set warning temperature range, the control unit controls the ventilation assembly to operate, ventilates the heating pipe, replaces external air with air in the heating pipe, and forcedly cools the annular air channel by virtue of the action of circulating air; when the electrolyte overflows from the battery module, the electrolyte overflows from the plurality of annular air channels, and meanwhile, the opening, the inner cavity of the heating pipe and the pipeline form a pressure relief channel, so that the pressure is discharged and explosion prevention is carried out.
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| CN118398968B (en) * | 2024-06-28 | 2024-08-20 | 南京莱迪新能源科技有限公司 | Lithium battery power supply assembly and method for environment monitoring under low temperature condition |
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| JP2014143094A (en) * | 2013-01-24 | 2014-08-07 | Toshiba Corp | Accumulator battery chassis structure |
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