CN109216620B - A battery pack equalizer and its balancing method - Google Patents
A battery pack equalizer and its balancing method Download PDFInfo
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- CN109216620B CN109216620B CN201811223498.2A CN201811223498A CN109216620B CN 109216620 B CN109216620 B CN 109216620B CN 201811223498 A CN201811223498 A CN 201811223498A CN 109216620 B CN109216620 B CN 109216620B
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- Prior art keywords
- base
- equalizer
- fixedly connected
- battery pack
- fan
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic 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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery pack equalizer and an equalizing method thereof, wherein the battery pack equalizer comprises a base, two damping springs are symmetrically arranged at the bottom end inside the base, the top ends of the two damping springs are fixedly connected with the bottom end of a battery pack, a circuit board is arranged at the top end of the battery pack, and a protection pad is fixedly connected with the bottom end of the circuit board; the damping spring, the first fixed plate, the second fixed plate and the fastening bolt which are arranged can play a role in damping and buffering the battery pack and the circuit board, so that the equalizer has an anti-seismic effect and damage to the equalizer caused by external collision is prevented.
Description
Technical Field
The present invention relates to an equalizer, and more particularly, to a battery equalizer and an equalizing method thereof.
Background
The battery pack equalizer is used for keeping the voltage deviation of the lithium ion battery cells or the battery pack voltage within an expected range by utilizing a power electronic technology, so that each single battery is ensured to keep the same state during normal use, and overcharge and overdischarge are avoided.
The energy transfer in the equalization process of the battery equalizer can generate heat loss due to the efficacy characteristics of the equalization power supply, and the change of polarization internal resistance in the electrochemical characteristics of the battery can cause a large amount of heat to be generated in the equalizer, but the traditional battery equalizer has poor heat dissipation effect, so that the working efficiency of the equalizer is low, even the equalizer is damaged due to overhigh temperature, and the service life is shortened.
Disclosure of Invention
The invention aims to provide a battery pack equalizer and an equalizing method thereof, which are used for solving the problems of poor heat dissipation, reduced working efficiency and shortened service life in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a group battery equalizer, includes the base, two damping springs are installed to the inside bottom symmetry of base, two damping springs's top all is with the bottom fixed connection of group battery, the circuit board is installed on the top of group battery, the bottom fixedly connected with protection pad of circuit board, the top joint of base has the top cap, the top fixedly connected with a plurality of conducting strip of protection pad, and a plurality of the top and the bottom joint of top cap of conducting strip, the equal fixedly connected with first fixed plate in middle part of base both sides inner wall, the equal fixedly connected with second fixed plate in both sides of group battery is located same one side first fixed plate and second fixed plate pass through fastening bolt fixed connection, the positive bottom fixedly connected with air-supply line of base, the one end and the inside intercommunication of base of air-supply line, the equal joint in both sides of air-supply line have the filter screen, the radiator fan is installed to the back of base, radiator fan switch is installed to the front of base, the fan passes through radiator fan switch and group battery electric connection.
Preferably, the protective pad is made of silica gel sheets with good heat conduction performance.
Preferably, a backing plate is arranged at the joint of the damping spring and the battery pack.
Preferably, the bottoms of the two sides of the base are fixedly connected with an L-shaped fixing piece through screws, and one side of the top end of the L-shaped fixing piece is provided with a positioning hole.
Preferably, two sides of the top cover are fixedly connected with the bottom of the base through bolts.
Preferably, the top cover is made of stainless steel.
A method of equalizing a battery equalizer, comprising the steps of:
step 1: the heat generated by the battery pack and the circuit board is transferred to the heat conducting sheet through the protective pad;
step 2: the heat conducting fin transmits heat to the outside of the equalizer through the top cover, so that preliminary heat dissipation is realized for the equalizer;
step 3: the switch of the cooling fan is turned on, the cooling fan blows hot air in the base to the outside, and cold air enters the base through the air inlet pipe to cool the battery pack and the circuit board;
step 4: external air enters the base from the air inlet pipe, and dust and impurities in the air are filtered and blocked by the two filter screens;
step 5: when the equalizer receives collision or transport, first fixed plate and second fixed plate can fix the group battery through fastening bolt, and the buffering shock attenuation of cooperation damping spring again can make the group battery keep stable, prevents that the equalizer from causing inside damage because of the collision.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a battery equalizer and an equalizing method thereof, which have the following advantages: the heat generated by the circuit board can be transferred to the outside of the equalizer through the protection pad and the plurality of heat conducting fins, so that the control efficiency of the circuit is prevented from being influenced by the overhigh temperature of the circuit board; the provided air inlet pipe and the cooling fan can discharge hot air in the base, external cold air is blown into the base by utilizing the pressure effect to cool and dissipate heat of the battery pack and the circuit board, the heat dissipation effect of the equalizer is further improved, the service life of the equalizer is prolonged, meanwhile, the filter screens arranged on two sides of the inner part of the air inlet pipe can carry out double filtration on the blown air, so that external dust is prevented from entering the base to pollute the equalizer, and the working efficiency of the equalizer is influenced; the damping spring, the first fixed plate, the second fixed plate and the fastening bolt which are arranged can play a role in damping and buffering the battery pack and the circuit board, so that the equalizer has an anti-seismic effect and damage to the equalizer caused by external collision is prevented.
Drawings
FIG. 1 is a schematic diagram of the front structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic view of the structure of the air inlet pipe of the present invention.
In the figure: 1-a base; 2-a damping spring; 3-battery pack; 4-a circuit board; 5-a protective pad; 6-top cover; 7-a heat conductive sheet; 8-a first fixing plate; 9-a second fixing plate; 10-fastening bolts; an 11-L-shaped fixing member; 12-positioning holes; 13-a heat radiation fan; 14-an air inlet pipe; 15-a filter screen; 16-backing plate.
Detailed Description
In order to make the technical solution of the present invention more clear and obvious to those skilled in the art, the present invention will be described in further detail with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1-3, the battery equalizer provided in this embodiment includes a base 1, two damping springs 2 are symmetrically installed at the bottom end inside the base 1, the top ends of the two damping springs 2 are fixedly connected with the bottom end of the battery 3, a circuit board 4 is installed at the top end of the battery 3, a protection pad 5 is fixedly connected with the bottom end of the circuit board 4, a top cover 6 is clamped at the top end of the base 1, a plurality of heat conducting fins 7 are fixedly connected at the top end of the protection pad 5, the top ends of the plurality of heat conducting fins 7 are clamped with the bottom end of the top cover 6, a first fixing plate 8 is fixedly connected with the middle parts of the inner walls of the two sides of the base 1, two sides of the battery 3 are fixedly connected with a second fixing plate 9, the first fixing plate 8 and the second fixing plate 9 which are positioned at the same side are fixedly connected with each other through fastening bolts 10, a filter screen 15 is clamped at the bottom of the front side of the base 1, a fan 13 is installed at the back of the base 1, a fan switch is installed at the front side of the base 1, and the fan 13 is electrically connected with the battery 3.
In this embodiment, the battery pack equalizer provided in this embodiment is made of a silicon sheet with good heat conducting performance, and has the performance of insulation and heat conduction, so that heat of the circuit board 4 can be well transferred to the heat conducting sheet 7 without affecting power control of the circuit board 4.
In this embodiment, the battery pack equalizer provided in this embodiment has the pad 16 installed at the connection between the damping spring 2 and the battery pack 3, so as to increase the stress area of the battery pack 3 and prevent the battery pack 3 from being damaged due to excessive local pressure.
In this embodiment, the battery pack equalizer provided in this embodiment, the bottom of base 1 both sides is through screw fixedly connected with L type mounting 11, and locating hole 12 has been seted up to one side on L type mounting 11 top, is convenient for install the equalizer with dismantle, improves the fixed dynamics of equalizer simultaneously.
In this embodiment, the battery pack equalizer provided in this embodiment, the both sides of top cap 6 pass through the bottom fixed connection of bolt and base 1, can carry out fixed connection with top cap 6 and base 1, improve the whole fastness of equalizer.
In this embodiment, the battery pack equalizer provided in this embodiment is made of stainless steel, and the top cover 6 has the characteristics of high strength and good heat conducting property, so that heat can be conveniently dissipated.
In this embodiment, the equalization method of the battery equalizer provided in this embodiment includes the following steps:
step 1: the heat generated by the battery pack 3 and the circuit board 4 is transferred to the heat conductive sheet 7 through the protection pad 5;
step 2: the heat conducting fin 7 transmits heat to the outside of the equalizer through the top cover 6, so as to perform primary heat dissipation on the equalizer;
step 3: the switch of the cooling fan is turned on, the cooling fan 13 blows hot air in the base 1 to the outside, and cold air enters the base 1 through the air inlet pipe 14 to cool the battery pack 3 and the circuit board 4;
step 4: external air enters the base 1 from the air inlet pipe 14, and dust impurities in the air are filtered and blocked by the two filter screens 15;
step 5: when the equalizer receives collision or carrying, the first fixing plate 8 and the second fixing plate 9 can fix the battery pack 3 through the fastening bolts 10, and then the battery pack 3 can be kept stable by being matched with the buffering and damping of the damping springs 2, so that the equalizer is prevented from being damaged inside due to collision.
When the battery pack equalizer provided by the embodiment is specifically used, during operation of the equalizer, heat generated by the battery pack 3 and the circuit board 4 is transferred to the plurality of heat conducting fins 7 through the protection pad 5, the plurality of heat conducting fins 7 transfer the heat to the outside of the equalizer through the top cover 6, the equalizer is subjected to preliminary heat dissipation, meanwhile, the cooling fan switch is opened, the cooling fan 13 blows hot air inside the base 1 to the outside, cold air outside the pressure relationship enters the base 1 through the air inlet pipe 14, the battery pack 3 and the circuit board 4 inside the base 1 are cooled, when external air enters the base 1 from the air inlet pipe 14, dust impurities in the air are filtered and blocked, dust is prevented from entering the base 1 to pollute the battery pack 3 and the circuit board 4, when the equalizer receives collision or carries, the first fixing plate 8 and the second fixing plate 9 can fix the battery pack 3 through the fastening bolts 10, and then the battery pack 3 can be kept stable through the buffering and damping of the damping springs 2, and the equalizer is prevented from being damaged inside due to the collision.
In summary, in the present embodiment, according to the battery equalizer and the equalizing method thereof, the protection pad and the plurality of heat conducting fins are provided to transfer the heat generated by the circuit board to the outside of the equalizer, so as to prevent the control efficiency of the circuit from being affected by the overhigh temperature of the circuit board; the provided air inlet pipe and the cooling fan can discharge hot air in the base, external cold air is blown into the base by utilizing the pressure effect to cool and dissipate heat of the battery pack and the circuit board, the heat dissipation effect of the equalizer is further improved, the service life of the equalizer is prolonged, meanwhile, the filter screens arranged on two sides of the inner part of the air inlet pipe can carry out double filtration on the blown air, so that external dust is prevented from entering the base to pollute the equalizer, and the working efficiency of the equalizer is influenced; the damping spring, the first fixed plate, the second fixed plate and the fastening bolt which are arranged can play a role in damping and buffering the battery pack and the circuit board, so that the equalizer has an anti-seismic effect and damage to the equalizer caused by external collision is prevented.
The above description is merely a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present invention within the scope of the present invention disclosed in the present invention.
Claims (2)
1. The utility model provides a group battery equalizer, includes base (1), its characterized in that, two damping springs (2) are installed to the inside bottom symmetry of base (1), two damping springs (2) the top all with the bottom fixed connection of group battery (3), circuit board (4) are installed on the top of group battery (3), the bottom fixedly connected with protection pad (5) of circuit board (4), the top joint of base (1) has top cap (6), the top fixedly connected with a plurality of conducting strip (7) of protection pad (5), and a plurality of the top of conducting strip (7) and the bottom joint of top cap (6), the equal fixedly connected with first fixed plate (8) in middle part of base (1) both sides inner wall, the equal fixedly connected with second fixed plate (9) in both sides of group battery (3), be located the same side first fixed plate (8) and second fixed plate (9) pass through fastening bolt (10) fixed connection, the bottom fixedly connected with top cap (6) of base (1), the top fixedly connected with top cap (14) of protection pad (5), the top fixedly connected with a plurality of conducting strip (7) and the top cap (6), the fan (14) of fan (1) are installed in front of base (1), fan (14) and fan (14) are installed to the front of fan (1), fan (14) are installed to the front air-supply line (1), radiator fan (13) are through radiator fan switch and group battery (3) electric connection, protection pad (5) adopt the silica gel piece that heat conductivility is good to be made, backing plate (16) are installed to the junction of damping spring (2) and group battery (3), screw fixedly connected with L type mounting (11) are passed through to the bottom of base (1) both sides, locating hole (12) have been seted up to one side on L type mounting (11) top, the both sides of top cap (6) are through the bottom fixed connection of bolt and base (1), top cap (6) adopt stainless steel to make.
2. A method of equalizing a battery equalizer as in any one of claim 1, comprising the steps of:
step 1: the heat generated by the battery pack (3) and the circuit board (4) is transferred to the heat conducting sheet (7) through the protective pad (5);
step 2: the heat conducting fin (7) transmits heat to the outside of the equalizer through the top cover (6), so that preliminary heat dissipation is realized for the equalizer;
step 3: the cooling fan switch is turned on, the cooling fan (13) blows hot air in the base (1) to the outside, and cold air enters the base (1) through the air inlet pipe (14) to cool the battery pack (3) and the circuit board (4);
step 4: external air enters the base (1) from the air inlet pipe (14), and dust impurities in the air are filtered and blocked by the two filter screens (15);
step 5: when the equalizer receives collision or transport, first fixed plate (8) and second fixed plate (9) can fix group battery (3) through fastening bolt (10), and the buffering shock attenuation of cooperation damping spring (2) again can make group battery (3) keep stable, prevents that the equalizer from causing inside damage because of the collision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223498.2A CN109216620B (en) | 2018-10-19 | 2018-10-19 | A battery pack equalizer and its balancing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223498.2A CN109216620B (en) | 2018-10-19 | 2018-10-19 | A battery pack equalizer and its balancing method |
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| Publication Number | Publication Date |
|---|---|
| CN109216620A CN109216620A (en) | 2019-01-15 |
| CN109216620B true CN109216620B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811223498.2A Active CN109216620B (en) | 2018-10-19 | 2018-10-19 | A battery pack equalizer and its balancing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115881662B (en) * | 2022-12-30 | 2025-12-16 | 厦门新能达科技有限公司 | Electrochemical device and electric equipment |
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| CN102324485A (en) * | 2011-08-25 | 2012-01-18 | 浙江天能电池(江苏)有限公司 | Portable energy balance storage battery |
| CN205810995U (en) * | 2016-05-30 | 2016-12-14 | 湖南小步科技有限公司 | A kind of radiator structure of battery pack balancing device |
| CN108054465A (en) * | 2017-12-29 | 2018-05-18 | 泉州劲鑫电子有限公司 | A kind of high-efficiency battery group cooling system |
| CN207587799U (en) * | 2017-12-05 | 2018-07-06 | 湖北环天高科新能源有限公司 | A kind of power battery assembly structure |
| CN207883767U (en) * | 2018-01-22 | 2018-09-18 | 东莞市昂跃电子有限公司 | A lithium battery with good cooling effect |
| CN208848966U (en) * | 2018-10-19 | 2019-05-10 | 南京驰鸿新能源科技有限公司 | A kind of battery pack balancing device |
-
2018
- 2018-10-19 CN CN201811223498.2A patent/CN109216620B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324485A (en) * | 2011-08-25 | 2012-01-18 | 浙江天能电池(江苏)有限公司 | Portable energy balance storage battery |
| CN205810995U (en) * | 2016-05-30 | 2016-12-14 | 湖南小步科技有限公司 | A kind of radiator structure of battery pack balancing device |
| CN207587799U (en) * | 2017-12-05 | 2018-07-06 | 湖北环天高科新能源有限公司 | A kind of power battery assembly structure |
| CN108054465A (en) * | 2017-12-29 | 2018-05-18 | 泉州劲鑫电子有限公司 | A kind of high-efficiency battery group cooling system |
| CN207883767U (en) * | 2018-01-22 | 2018-09-18 | 东莞市昂跃电子有限公司 | A lithium battery with good cooling effect |
| CN208848966U (en) * | 2018-10-19 | 2019-05-10 | 南京驰鸿新能源科技有限公司 | A kind of battery pack balancing device |
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| CN109216620A (en) | 2019-01-15 |
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Effective date of registration: 20240301 Address after: Room 900, No. 69 Feitian Avenue, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province, 210000 (Jiangning Development Zone) Applicant after: Jiangsu Shuizhilan Technology Co.,Ltd. Country or region after: China Address before: No. 2-202A, No. 69, Shitoucheng Liuchuangyuan, Gulou District, Nanjing City, Jiangsu Province, 210029 Applicant before: NANJING CHIHONG NEW ENERGY TECHNOLOGY CO.,LTD. Country or region before: China |
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Address after: Room 900, No. 69 Feitian Avenue, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province, 210000 (Jiangning Development Zone) Patentee after: Nanjing Shuizhilan Technology Co., Ltd. Country or region after: China Address before: Room 900, No. 69 Feitian Avenue, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province, 210000 (Jiangning Development Zone) Patentee before: Jiangsu Shuizhilan Technology Co.,Ltd. Country or region before: China |