CN211480101U - Movable electricity storage box based on micro heat pipe array - Google Patents
Movable electricity storage box based on micro heat pipe array Download PDFInfo
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- CN211480101U CN211480101U CN201921641075.2U CN201921641075U CN211480101U CN 211480101 U CN211480101 U CN 211480101U CN 201921641075 U CN201921641075 U CN 201921641075U CN 211480101 U CN211480101 U CN 211480101U
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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
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- Y02E60/10—Energy storage using batteries
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Abstract
A movable electricity storage box based on a micro heat pipe array comprises a lithium battery module, an electricity storage box shell and an external air cooling module, wherein a battery or a battery module is horizontally placed in the electricity storage box, and the lower surface of the battery or the battery module is attached to the micro heat pipe array; the part of the micro heat pipe array, which is attached to the lower surface of the battery or the battery module, is an evaporation section, the length of the micro heat pipe array is greater than that of each layer of battery or the battery module of the power storage box, and the extending parts of the micro heat pipe array are bent towards the side surfaces close to the shell electric cores at two sides respectively to be used as condensation sections and are attached to the side surfaces of the battery or the battery module and the shell of the power storage box; the electric storage box shell surrounds the battery module and is of a closed structure, and at least the electric storage box shell is provided with a heat conduction partition plate at a position corresponding to the condensation section; the heat conduction partition plate is used as a protective shell of the battery cell, a substrate of the external air cooling module is separated from the battery module, and complete physical isolation between the heat conduction partition plate and the battery cell in the outer shell is achieved. The utility model discloses the high and security performance of radiating efficiency is good.
Description
Technical Field
The utility model belongs to the technical field of the thermal control, specificly relate to a portable lithium electricity storage box.
Background
The development and application of renewable energy sources, such as solar energy and wind power generation, are main means for relieving energy pressure, but wind power and solar photovoltaic power generation have the phenomena of incompatibility of supply and application in time, place and strength, and the like, so that unreasonable energy utilization and a large amount of waste are caused. The energy storage technology can effectively solve the problems of uncoordinated energy supply and demand and the like, so that the energy is fully utilized, and the energy waste is reduced. In addition, peak clipping and valley filling of electric power can reduce the power generation load in the daytime and effectively utilize the electric power at night, and the policy of scientific energy utilization and energy waste reduction is greatly promoted in China and even all over the world, and energy storage is an important means for peak clipping and valley filling of electric power. The battery energy storage technology has attracted much attention in recent years because of its advantages such as quick and accurate regulation ability. Compared with other types of energy storage, the battery energy storage has the advantages of high energy density, few site selection limiting factors, flexible power throughput and small energy loss.
The performance of the battery is closely related to the operating temperature, and the battery pack has an influence on the performance due to the over-high or over-low temperature and the uniformity of the temperature distribution. Therefore, thermal management of the battery and the battery pack is necessary to ensure safe and reliable operation of the battery pack.
However, under the conditions of high temperature environment and fast charging and discharging, the temperature of the battery of the conventional movable power storage box can far exceed the allowable temperature of the battery, and the temperature difference of the battery is as high as more than 10 ℃, so that not only can serious safety problems such as spontaneous combustion caused by thermal runaway of the battery be easily caused, but also the service life of the battery can be quickly reduced.
The utility model discloses a portable electricity storage box based on little heat pipe array thermal management, the heat trades out through little heat pipe array conduction to the external air cooling module that has the fan with the outside setting of battery (electricity core) protection casing when electric core high temperature, the base plate of external air cooling module and battery (electricity core) protection casing pass through sealing washer or sealing means such as welding realize with battery (electricity core) complete physics in the casing keeps apart, guarantees that the protection grade of electricity storage box reaches IP67, when the temperature of lithium cell is higher than the setting value, if 35 ℃ -42 ℃, carry out automatic heat dissipation by external air cooling fin, realize the energy-conserving heat dissipation of non-refrigeration to realize energy-conservation by a wide margin. And during the shutdown period just after the use of the movable electricity storage box, the heat generated by the battery can automatically start the fan to dissipate heat, so that the serious safety risks such as thermal runaway are greatly inhibited.
SUMMERY OF THE UTILITY MODEL
To the portable electricity storage box that has on the market at present not have battery full surface cooling and low temperature system of preheating basically, the utility model provides a novel portable electricity storage box based on little heat pipe array.
The utility model discloses technical scheme as follows:
a movable electricity storage box based on a micro heat pipe array is characterized by comprising a lithium battery module, an electricity storage box shell and an external air cooling module,
the battery module comprises one or more groups of batteries or battery modules, and the batteries or the battery modules are horizontally placed in the electricity storage box.
The lower surface of the battery or the battery module is attached to the micro heat pipe array; the part of the micro heat pipe array, which is attached to the lower surface of the battery or the battery module, is an evaporation section, the length of the micro heat pipe array is greater than that of each layer of battery or the battery module of the power storage box, and the extending parts of the micro heat pipe array are bent towards the side surfaces close to the shell electric cores at two sides respectively to be used as condensation sections and are attached to the side surfaces of the battery or the battery module and the shell of the power storage box;
the electric storage box shell surrounds the battery module and is of a closed structure, and at least the electric storage box shell is provided with a heat conduction partition plate at a position corresponding to the condensation section;
the heat conduction partition plate is used as a protective shell of the battery cell, the substrate of the external air cooling module is separated from the battery module, the substrate of the external air cooling module is sealed through sealing measures such as sealing rings or welding, and the complete physical isolation of the battery cell in the outer shell is achieved.
Preferably, the batteries or the battery modules are distributed in a multi-layer overlapping mode, and the lower surface of each layer of battery module is attached to the micro heat pipe array respectively.
Preferably, the lower surface of each layer of the battery or the battery module is attached to the micro heat pipe array, and the lower surface of each layer of the battery or the battery module is at least attached to one or two or more micro heat pipe arrays in parallel.
Preferably, each micro heat pipe array is U-shaped, the bottom edge of the U-shaped array is attached to the lower surface of each layer of battery or battery module, and the extending parts of the U-shaped array are bent towards the side faces of each layer of battery or battery module close to the heat conduction partition plates (shells) on the two sides of the electricity storage box and attached to the heat conduction partition plates on the side faces of the battery or battery module.
Preferably, the substrate of the external air cooling module is connected or welded with the outer surface of the electricity storage box shell through a sealing ring, and the electricity storage box shell is in a protection level higher than IP 55.
Preferably, a compressible and deformable heat conduction gasket is arranged between the micro heat pipe array and the battery or the battery module, so that the battery and the micro heat pipe array are guaranteed to have good heat conduction.
Preferably, the system comprises an automatic control system and a cell temperature detection unit, wherein the automatic control system is connected with the cell temperature detection unit.
Preferably, the evaporation section of the micro heat pipe array is provided with an electric heating film, when the temperature of the battery is lower than the set temperature, the electric heating film is heated, the battery is heated through the micro heat pipe array, and at the moment, the cooling system stops running.
Preferably, a plurality of fans are uniformly arranged on the air cooling module to ensure that the air inlet and outlet temperature difference of each position of the air cooling module is small, so that the temperature of all the batteries is relatively uniform.
The utility model has the advantages of as follows:
the utility model provides a portable electricity storage box based on little heat pipe array, at the lower surface laminating little heat pipe array heat conductor of every layer of battery (electric core) or battery module, transmits the heat for external air cooling module through heat conduction baffle, and the latter combines automatic control system and electric core temperature detecting element, adopts air cooling's mode management electric core's temperature. On the one hand, every group electricity core has a side surface and a little heat pipe array laminating at least, even be located inside electric core like this, its temperature also can be through the little heat pipe array of laminating with it effectively conduct for the heat conduction baffle rather than the laminating, and then the conduction is outside to the battery, then through external air cooling module to in the environment outside the battery box is gived off to the inside temperature of battery to air cooling's mode, the radiating efficiency is high. On the other hand, the micro heat pipe array is a flat heat conductor with a porous structure formed by extruding a metal material, a plurality of micro heat pipes which are arranged side by side and are not communicated with each other are arranged inside the micro heat pipe array, the hydraulic diameter of each micro heat pipe is only 1.0nm, even smaller, the pressure bearing capacity of the pipe wall is extremely high, so that the leakage problem can be almost ignored, and the phase change working medium is a trace and non-conductive medium, so that the battery cannot be damaged even if the phase change working medium is damaged and leaked under extreme conditions; and the heat conduction partition plate is simultaneously used as a protective shell of the battery cell, separates the substrate of the external air cooling module from the battery pack, and seals the substrate of the external air cooling module through sealing measures such as sealing rings or welding, so that the complete physical isolation between the substrate and the battery cell in the outer shell is realized, and the protection grade of the battery pack is ensured to reach the waterproof and dustproof grade of IP 67.
The utility model discloses a portable electricity storage box based on little heat pipe array no matter the electricity storage box is in start or shutdown state, and the air cooling system all is in standby state, and when the temperature of inside electric core was higher than the setting value, if 35 ℃ -42 ℃, fan automatic start dispels the heat. The heat on the surface of the battery core is conducted to an external air cooling module arranged outside the battery pack shell through the micro heat pipe array and is exchanged out.
Preferably, when the temperature of the battery or the battery module is higher than a set value, the external air cooling fins automatically dissipate heat, uncooled energy-saving heat dissipation is achieved, automatic heat dissipation is achieved when the battery heats during the shutdown of the electricity storage box, and major safety risks such as thermal runaway are greatly inhibited.
To sum up, the utility model discloses the effectual little heat pipe array that will have high-efficient heat transfer combines with the air cooling mode, further through little heat pipe array and battery unit's position and range relation for the outside of every battery package sets up one or two external air-cooled modules, can effectively conduct away the inside temperature of battery, prevents the high temperature, guarantees that the temperature of battery is even, and the radiating efficiency is high.
The micro heat pipe array on the side face of the battery or the battery module is bent and then attached to the heat conducting partition plate, so that the contact area between the condensation section of the micro heat pipe array and the heat conducting partition plate is larger, and the heat conducting efficiency is improved.
The heat conducting gasket has the functions of heat conduction, electric insulation and ensuring good contact between the micro heat pipe array and the battery.
Drawings
FIG. 1 is a schematic view of an electricity storage box 1;
FIG. 2 is a schematic view of the structure of the electricity storage box 2;
FIG. 3 is a schematic view of the structure of the electric storage box 3;
fig. 4 shows a layout of a battery module and a micro heat pipe array 1;
fig. 5 shows an arrangement of a battery module and a micro heat pipe array fig. 2.
The various reference numbers in the figures are listed below:
1-electric core; 2-a heat-conducting partition plate; 3-micro heat pipe array evaporation section; 4-micro heat pipe array condensation section; 5, externally arranging an air cooling module; 6, a fan; 7-air cooling module air duct
Detailed Description
For a better understanding of the present invention, a certain example and embodiment are set forth below for further explanation.
As shown in fig. 1 to 5, the movable electricity storage box based on the micro heat pipe array of the present embodiment includes an electric core 1 and an external air cooling module 5 attached to the outside of an electricity storage box housing 2, the number of the layers in the electricity storage box is 9, and 3 electric cores and 27 electric cores are placed in each layer. In 27 electric cores, each electric core has at least one surface side and laminates and has little heat pipe array, laminates and is little heat pipe array evaporation zone 3 in electric core lower surface, laminates and is little heat pipe array condensation segment 4 in electric core side. The micro heat pipe array is a flat heat conductor which is made of metal materials through extrusion and has a porous structure, a plurality of micro heat pipes which are arranged side by side and are not communicated with each other are arranged inside the micro heat pipe array, and phase change working media are packaged inside the micro heat pipes. The micro heat pipe array is a heat conductor with enhanced heat transfer effect. The micro heat pipe array is adhered to the lower surface of the battery cell through the heat-conducting silica gel gasket. An external air cooling module 5 is arranged outside the electricity storage box shell, and the electricity storage box shell 2 is enclosed into a closed structure. And each micro heat pipe array evaporation section 3 is bent towards the side face of each layer of battery pack close to the electricity storage box shell and is attached to the inner side of the electricity storage box shell 2, wherein the electricity storage box shell 2 attached to the corresponding micro heat pipe array condensation section 4 is a heat conduction partition plate. External air cooling module 5 at least with the surface laminating of heat conduction baffle, with micro heat pipe array condensation segment 4 passes through heat conduction baffle carries out the heat exchange, and a side surface of its base plate and accumulator case shell 2's surface welding also can be connected through the sealing washer, realizes external air cooling module 5 and the complete physics of inside electric core and keeps apart, guarantees that the protection level of battery package reaches IP 67.
And a compressible and deformable heat-conducting silica gel gasket is arranged between the micro heat pipe array and the battery cell 1.
The battery core 1 can be replaced by various types of lithium batteries or a flexible package battery module which is formed by combining soft packaged single batteries and is provided with a shell with structural strength outside.
The movable electricity storage box based on the micro heat pipe array further comprises an automatic control system and a cell temperature detection unit, wherein the automatic control system is connected with the cell temperature detection unit.
When the temperature of the battery cell detected by the detection unit is higher than 35 ℃, the control system automatically starts the external air cooling module 5 and starts the fan 6, so that the external air cooling module 5, the heat conduction partition plate and the micro heat pipe array are utilized to dissipate heat of the battery cell, and the heat of the battery cell is exchanged; when the temperature of the battery core is lower than 35 ℃, the external air cooling module 5 is closed and does not dissipate heat any more. The external air cooling module 5 is a two-side air inlet type heat dissipation module, air enters the external air cooling module 5 from two sides of an air cooling module air duct 7, and finally the air is blown out of the external air cooling module 5 by a fan 6.
When the ambient temperature is lower than a set value, for example, 0 ℃, the control system automatically closes the cooling system, and energizes the electric heating film arranged at the evaporation section 3 of the micro heat pipe array, the electric heating film rapidly generates heat after being energized, and the heat is rapidly and uniformly transferred to the condensation section 4 of the micro heat pipe array by the evaporation section 3 of the micro heat pipe array, so as to rapidly and uniformly preheat the electric core 1.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or the size and the number, etc. that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A movable electricity storage box based on a micro heat pipe array is characterized by comprising a lithium battery module, an electricity storage box shell and an external air cooling module,
the battery module comprises one or more groups of batteries or battery modules, the batteries or battery modules are horizontally arranged in the electric storage box,
the lower surface of the battery or the battery module is attached to the micro heat pipe array; the part of the micro heat pipe array, which is attached to the lower surface of the battery or the battery module, is an evaporation section, the length of the micro heat pipe array is greater than that of each layer of battery or the battery module of the power storage box, and the extending parts of the micro heat pipe array are bent towards the side surfaces close to the shell electric cores at two sides respectively to be used as condensation sections and are attached to the side surfaces of the battery or the battery module and the shell of the power storage box;
the electric storage box shell surrounds the battery module and is of a closed structure, and at least the electric storage box shell is provided with a heat conduction partition plate at a position corresponding to the condensation section;
the heat conduction partition plate is used as a protective shell of the battery cell, the substrate of the external air cooling module is separated from the battery module, the substrate of the external air cooling module is sealed through a sealing ring or a welded sealing measure, and the complete physical isolation of the battery cell in the protective shell is realized.
2. The micro heat pipe array-based movable electricity storage box according to claim 1, wherein the batteries or battery modules are stacked and distributed in a multi-layer manner, and the lower surface of each layer of battery module is respectively attached to the micro heat pipe array.
3. The micro heat pipe array-based movable electricity storage box according to claim 2, wherein the lower surface of each layer of the batteries or the battery modules is attached to the micro heat pipe array, and the lower surface of each layer of the batteries or the battery modules is attached to at least one or two or more micro heat pipe arrays in parallel.
4. The micro heat pipe array-based movable electricity storage box according to claim 3, wherein each micro heat pipe array is U-shaped, the bottom edge of the U-shaped is attached to the lower surface of each layer of batteries or battery modules, and the extending parts are respectively bent towards the side surfaces of each layer of batteries or battery modules close to the heat conduction partition plates on the two sides of the electricity storage box and attached to the heat conduction partition plates on the side surfaces of the batteries or battery modules.
5. The micro heat pipe array-based movable electricity storage box of claim 1, wherein the substrate of the external air cooling module is connected or welded to the outer surface of the electricity storage box shell through a sealing ring, and the electricity storage box shell is in a protection level above IP 55.
6. The micro heat pipe array-based movable electricity storage box according to claim 1, wherein a compressible and deformable heat conduction gasket is arranged between the micro heat pipe array and the battery or the battery module, so as to ensure good heat conduction between the battery and the micro heat pipe array.
7. The movable electricity storage box based on the micro heat pipe array of claim 1, characterized by comprising an automatic control system and a cell temperature detection unit, wherein the automatic control system is connected with the cell temperature detection unit.
8. The micro heat pipe array-based movable electricity storage box according to claim 1, wherein the evaporation section of the micro heat pipe array is provided with an electric heating film, when the temperature of the battery is lower than a set temperature, the electric heating film is heated, the battery is heated through the micro heat pipe array, and at the moment, the cooling system stops operating.
9. The portable electrical storage box of claim 1, wherein the air cooling module has a plurality of fans arranged uniformly thereon to ensure that the air cooling module has a small temperature difference between the inlet and outlet air at each position, so as to achieve relatively uniform temperature of all the cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921641075.2U CN211480101U (en) | 2019-09-29 | 2019-09-29 | Movable electricity storage box based on micro heat pipe array |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921641075.2U CN211480101U (en) | 2019-09-29 | 2019-09-29 | Movable electricity storage box based on micro heat pipe array |
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| CN211480101U true CN211480101U (en) | 2020-09-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410540A (en) * | 2021-05-18 | 2021-09-17 | 华南理工大学 | Power battery module cooling system |
| WO2023040067A1 (en) * | 2021-09-15 | 2023-03-23 | 深圳市富兰瓦时技术有限公司 | Household energy storage system |
| CN117410626A (en) * | 2023-12-15 | 2024-01-16 | 万真消防技术(广东)有限公司 | Thermal management method and device for battery pack box body |
-
2019
- 2019-09-29 CN CN201921641075.2U patent/CN211480101U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410540A (en) * | 2021-05-18 | 2021-09-17 | 华南理工大学 | Power battery module cooling system |
| WO2023040067A1 (en) * | 2021-09-15 | 2023-03-23 | 深圳市富兰瓦时技术有限公司 | Household energy storage system |
| CN117410626A (en) * | 2023-12-15 | 2024-01-16 | 万真消防技术(广东)有限公司 | Thermal management method and device for battery pack box body |
| CN117410626B (en) * | 2023-12-15 | 2024-03-19 | 万真消防技术(广东)有限公司 | Thermal management method and device for battery pack box body |
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