CN114628833B - Portable new forms of energy fork truck battery module - Google Patents
Portable new forms of energy fork truck battery module Download PDFInfo
- Publication number
- CN114628833B CN114628833B CN202111661960.9A CN202111661960A CN114628833B CN 114628833 B CN114628833 B CN 114628833B CN 202111661960 A CN202111661960 A CN 202111661960A CN 114628833 B CN114628833 B CN 114628833B
- Authority
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- China
- Prior art keywords
- driving
- supporting seat
- air blowing
- rod
- blowing piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 230000001737 promoting effect Effects 0.000 claims abstract description 4
- 238000007664 blowing Methods 0.000 claims description 39
- 230000000694 effects Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005422 blasting Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
Classifications
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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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M10/656—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
-
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a portable new energy forklift battery module, and relates to the technical field of battery modules; the device comprises an upper supporting seat, a lower supporting seat, a plurality of electric cores positioned between the upper supporting seat and the lower supporting seat and a turbulence device for promoting air flow between the electric cores; one end of the battery cell is inserted into the upper supporting seat, and the other end of the battery cell is inserted into the lower supporting seat; the upper supporting seat is provided with a plurality of limiting grooves for limiting the aluminum row. The beneficial effects of the invention are as follows: when the battery is welded, aluminum is discharged into the limiting groove and then welded, so that the aluminum row is more stable and the welding effect is good; when the battery module is used, the battery module is vibrated when the vehicle passes through a jolt place, the internal air blast piece moves up and down, air flows between the battery cells, the phenomenon of local high temperature is prevented, and in addition, heat dissipation can be promoted.
Description
Technical Field
The invention belongs to the technical field of battery modules, and particularly relates to a portable new energy forklift battery module.
Background
The battery module of the new energy forklift needs to weld the aluminum row and the battery cell together when being assembled, the current upper supporting seat only plays a role in fixing the battery cell, the aluminum row is directly pressed on the upper supporting seat when being welded, then the aluminum row is welded, and the positioning of the aluminum row is troublesome.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a portable new energy forklift battery module.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a portable new energy forklift battery module comprises an upper supporting seat, a lower supporting seat, a plurality of electric cores positioned between the upper supporting seat and the lower supporting seat, and a turbulence device for promoting air flow between the electric cores; one end of the battery cell is inserted into the upper supporting seat, and the other end of the battery cell is inserted into the lower supporting seat; the upper supporting seat is provided with a plurality of limiting grooves for limiting the aluminum row.
Preferably, the upper support seat and the lower support seat are respectively provided with an air inlet, and the air inlet is provided with a first one-way valve; the turbulence device comprises a cylinder body, an air blowing piece positioned in the cylinder body, a spring positioned in the cylinder body and used for resetting the air blowing piece, and a guide rod fixedly connected in the cylinder body; the two ends of the cylinder body are connected with the corresponding air inlets; the cylinder body comprises a first end cover fixedly connected with the upper supporting seat, a second end cover fixedly connected with the lower supporting seat, and a rotating sleeve rotatably connected between the first end cover and the second end cover; the air blowing piece is positioned in the rotating sleeve, one end of the guide rod is fixedly connected with the first end cover, the other end of the guide rod is fixedly connected with the second end cover, the guide rod penetrates through the air blowing piece and is in sliding connection with the air blowing piece, air outlets are formed in two ends of the rotating sleeve, and a second one-way valve is arranged on the air outlets; the spoiler device further comprises a rotating mechanism for rotating the rotating sleeve.
Preferably, a first annular bulge is arranged on the inner wall of one end of the rotating sleeve, a second annular bulge is arranged on the inner wall of the other end of the rotating sleeve, a plurality of first driving grooves are formed in the inner side of the first annular bulge, and a plurality of second driving grooves are formed in the inner side of the second annular bulge; the first driving groove and the second driving groove are arranged in an annular array with the shaft of the cylinder body as the center; the rotating mechanism comprises a first driving rod fixedly connected to one side of the air blowing piece close to the first end cover and a second driving rod fixedly connected to the other side of the air blowing piece; the first driving groove comprises a first slot for inserting a first driving rod, a first driving surface positioned at the bottom of the first slot, and a first avoidance groove positioned at one end of the first driving surface; the first driving rod is used for extruding the first driving surface so as to enable the rotating sleeve to rotate, and the first avoidance groove is positioned at one end of the first driving surface far away from the air blowing piece; the second driving groove comprises a second slot for inserting a second driving rod, a second driving surface positioned at the bottom of the second slot, and a second avoidance groove positioned at one end of the first driving surface; the second driving rod is used for extruding the second driving surface so as to enable the rotating sleeve to rotate, and the second avoidance groove is positioned at one end of the second driving surface far away from the air blowing piece; the direction of the first driving rod and the second driving rod driving the rotating sleeve are the same; when the first driving rod is inserted into the first avoidance groove, the second driving rod corresponds to the second driving surface in position; when the second driving rod is inserted into the second avoidance groove, the first driving rod corresponds to the first driving surface in position.
Preferably, the upper support seat and the lower support seat are rectangular, the first end cover is located at the center of the upper support seat, and the second end cover is located at the center of the lower support seat.
Preferably, the guide rod comprises a bracket fixedly connected with the first end cover, a bracket fixedly connected with the second end cover and a sliding rod fixedly connected with the bracket; the sliding rod passes through the air blowing piece.
Preferably, one end of the spring is connected to the bracket, the other end of the spring is connected to the air blowing piece, and the spring is sleeved on the guide rod.
Preferably, the sliding rod has a square cross section.
Preferably, the inner side of the air blowing piece is provided with a plurality of inner balls, and the outer side of the air blowing piece is provided with a plurality of outer balls; the inner ball and the outer ball are used for reducing the movement resistance of the air blowing piece; the inner ball is abutted against the guide rod, and the outer ball is abutted against the inner side of the cylinder body.
The beneficial effects of the invention are as follows: when the battery is welded, aluminum is discharged into the limiting groove and then welded, so that the aluminum row is more stable and the welding effect is good; when the battery module is used, the battery module is vibrated when the vehicle passes through a jolt place, the internal air blast piece moves up and down, air flows between the battery cells, the phenomenon of local high temperature is prevented, and in addition, heat dissipation can be promoted.
Drawings
FIG. 1 is a schematic illustration of an embodiment;
FIG. 2 is a cross-sectional view of an embodiment;
FIG. 3 is another cross-sectional view of an embodiment;
FIG. 4 is a schematic view of the downward movement of the blower;
FIG. 5 is a schematic view of the rotation of the rotating sleeve;
FIG. 6 is a schematic view of the upward movement of the blower;
fig. 7 is a schematic view of the first driving lever inserted into the first escape groove.
In the figure: the air blower comprises an upper supporting seat 1, a lower supporting seat 2, a battery core 3, an air blower 4, a guide rod 5, an air inlet 6, a first one-way valve 7, a first end cover 8, a second end cover 9, a rotating sleeve 10, an air outlet 11, a second one-way valve 12, a first driving groove 13, a second driving groove 14, a first driving rod 15, a second driving rod 16, a first slot 17, a first driving surface 18, a first avoidance groove 19, a second slot 20, a second driving surface 21, a second avoidance groove 22 and a limiting groove 23.
Detailed Description
The invention is further described in detail below with reference to the attached drawings and detailed description:
examples:
referring to fig. 1 to 7, a portable new energy forklift battery module comprises an upper support seat 1, a lower support seat 2, a plurality of battery cells 3 positioned between the upper support seat 1 and the lower support seat 2, and a turbulence device for promoting air flow between the battery cells 3;
one end of the battery cell 3 is inserted into the upper supporting seat 1, and the other end is inserted into the lower supporting seat 2;
the upper supporting seat 1 is provided with a plurality of limiting grooves 23 for limiting the aluminum row.
The upper support seat 1 and the lower support seat 2 are respectively provided with an air inlet 6, and the air inlet 6 is provided with a first one-way valve 7;
the turbulence device comprises a cylinder body, an air blowing piece 4 positioned in the cylinder body, a spring positioned in the cylinder body and used for resetting the air blowing piece 4, and a guide rod 5 fixedly connected in the cylinder body;
two ends of the cylinder body are connected with the corresponding air inlets 6;
the cylinder body comprises a first end cover 8 fixedly connected with the upper supporting seat 1, a second end cover 9 fixedly connected with the lower supporting seat 2, and a rotating sleeve 10 rotatably connected between the first end cover 8 and the second end cover 9;
the air blowing piece 4 is positioned in the rotating sleeve 10, one end of the guide rod 5 is fixedly connected with the first end cover 8, the other end of the guide rod 5 is fixedly connected with the second end cover 9, the guide rod 5 penetrates through the air blowing piece 4 and is in sliding connection with the air blowing piece 4, two ends of the rotating sleeve 10 are provided with air outlets 11, and the air outlets 11 are provided with second one-way valves 12;
the spoiler device further comprises a rotation mechanism for rotating the rotating sleeve 10.
The inner wall of one end of the rotating sleeve 10 is provided with a first annular bulge, the inner wall of the other end of the rotating sleeve is provided with a second annular bulge, the inner side of the first annular bulge is provided with a plurality of first driving grooves 13, and the inner side of the second annular bulge is provided with a plurality of second driving grooves 14;
the first driving groove 13 and the second driving groove 14 are arranged in an annular array with the shaft of the cylinder body as the center;
the rotating mechanism comprises a first driving rod 15 fixedly connected to one side of the air blowing piece 4 close to the first end cover 8 and a second driving rod 16 fixedly connected to the other side of the air blowing piece 4;
the first driving groove 13 comprises a first slot 17 into which the first driving rod 15 is inserted, a first driving surface 18 positioned at the bottom of the first slot 17, and a first avoidance groove 19 positioned at one end of the first driving surface 18;
the first driving rod 15 is used for pressing the first driving surface 18 so as to rotate the rotating sleeve 10, and the first avoidance groove 19 is positioned at one end of the first driving surface 18 away from the air blowing piece 4;
the second driving groove 14 comprises a second slot 20 for inserting the second driving rod 16, a second driving surface 21 positioned at the bottom of the second slot 20, and a second avoidance groove 22 positioned at one end of the first driving surface 18;
the second driving rod 16 is used for pressing the second driving surface 21 so as to rotate the rotating sleeve 10, and the second avoidance groove 22 is positioned at one end of the second driving surface 21 away from the air blowing piece 4;
the first driving rod 15 and the second driving rod 16 drive the rotating sleeve 10 in the same direction;
when the first driving rod 15 is inserted into the first avoidance groove 19, the second driving rod 16 corresponds to the second driving surface 21 in position;
when the second drive rod 16 is inserted into the second evasion groove 22, the first drive rod 15 and the first drive surface 18 correspond in position.
The upper support seat 1 and the lower support seat 2 are rectangular, the first end cover 8 is positioned at the center of the upper support seat 1, and the second end cover 9 is positioned at the center of the lower support seat 2.
The guide rod 5 comprises a bracket fixedly connected with the first end cover 8, a bracket fixedly connected with the second end cover 9 and a sliding rod fixedly connected with the bracket;
the sliding rod passes through the blower 4.
One end is connected to the bracket, the other end is connected to the air blowing piece 4, and the spring is sleeved on the guide rod 5.
The cross section of the sliding rod is square.
The inner side of the air blowing piece 4 is provided with a plurality of inner balls, and the outer side of the air blowing piece is provided with a plurality of outer balls;
the inner ball and the outer ball are used for reducing the movement resistance of the air blower 4;
the inner ball abuts against the guide rod 5 and the outer ball abuts against the inside of the cylinder.
Principles of the embodiment:
when the battery is welded, aluminum is discharged into the limiting groove 23, and then the battery is welded, so that the aluminum row is more stable and the welding effect is good;
when the automobile is used, when the automobile passes through a jolting place, the battery module is vibrated, the inside air blasting piece 4 can move up and down, when the air blasting piece 4 moves down, air enters the upper end of the cylinder body through the first one-way valve 7, air in the cylinder body is discharged from the air outlet 11 at the lower end of the cylinder body, the air flows between the electric cores, the phenomenon of local high temperature is prevented, in addition, heat dissipation can be promoted, see fig. 4, the second driving rod 16 moves down to lean against the second driving surface 21, the air blasting piece 4 continues to move down, the second driving rod 16 presses the second driving surface 21 downwards, the rotating sleeve 10 rotates an angle, the second driving rod 16 is inserted into the second avoidance groove 22, at the moment, the first driving rod 15 corresponds to the first driving surface 18 in position, see fig. 5, the air outlet 11 also rotates after the rotating sleeve 10, the air direction of the air is changed, the disturbance effect is better, the electric core around the disturbance device is better cooled, when the air blasting piece 4 moves up, the air is discharged from the air outlet 11 at the upper end, the air outlet 6 enters the upper end of the cylinder body, the first driving rod 6 rotates the first driving rod 15 again, see fig. 15 rotates the first driving rod 15, the first rotation sleeve 19 is avoided, the first rotation angle is changed, the first rotation sleeve 19 is reached, the first rotation angle is reached, the first rotation step is reached, the first rotation of the air is reached, the first rotation sleeve 19 is reached, the first rotation is reached, the step is reached, the air is reached, and the step is reached, and the air is reached, and the step is 360, and the is reached.
Claims (6)
1. The portable new energy forklift battery module is characterized by comprising an upper supporting seat (1), a lower supporting seat (2), a plurality of electric cores (3) positioned between the upper supporting seat (1) and the lower supporting seat (2) and a turbulence device for promoting air flow between the electric cores (3);
one end of the battery cell (3) is inserted into the upper supporting seat (1), and the other end is inserted into the lower supporting seat (2);
a plurality of limiting grooves (23) for limiting the aluminum row are arranged on the upper supporting seat (1);
the upper supporting seat (1) and the lower supporting seat (2) are respectively provided with an air inlet (6), and the air inlet (6) is provided with a first one-way valve (7);
the turbulence device comprises a cylinder body, an air blowing piece (4) positioned in the cylinder body, a spring positioned in the cylinder body and used for resetting the air blowing piece (4), and a guide rod (5) fixedly connected in the cylinder body;
two ends of the cylinder body are connected with corresponding air inlets (6);
the cylinder body comprises a first end cover (8) fixedly connected with the upper supporting seat (1), a second end cover (9) fixedly connected with the lower supporting seat (2) and a rotating sleeve (10) rotatably connected between the first end cover (8) and the second end cover (9);
the air blowing piece (4) is positioned in the rotating sleeve (10), one end of the guide rod (5) is fixedly connected with the first end cover (8), the other end of the guide rod is fixedly connected with the second end cover (9), the guide rod (5) penetrates through the air blowing piece (4) and is in sliding connection with the air blowing piece (4), air outlets (11) are formed in two ends of the rotating sleeve (10), and second one-way valves (12) are arranged on the air outlets (11);
the turbulence device also comprises a rotating mechanism for rotating the rotating sleeve (10);
the inner wall of one end of the rotating sleeve (10) is provided with a first annular bulge, the inner wall of the other end of the rotating sleeve is provided with a second annular bulge, the inner side of the first annular bulge is provided with a plurality of first driving grooves (13), and the inner side of the second annular bulge is provided with a plurality of second driving grooves (14);
the first driving groove (13) and the second driving groove (14) are arranged in an annular array with the shaft of the cylinder body as the center;
the rotating mechanism comprises a first driving rod (15) fixedly connected to one side of the air blowing piece (4) close to the first end cover (8), and a second driving rod (16) fixedly connected to the other side of the air blowing piece (4);
the first driving groove (13) comprises a first slot (17) for inserting a first driving rod (15), a first driving surface (18) positioned at the bottom of the first slot (17), and a first avoidance groove (19) positioned at one end of the first driving surface (18);
the first driving rod (15) is used for pressing the first driving surface (18) so as to enable the rotating sleeve (10) to rotate, and the first avoidance groove (19) is positioned at one end of the first driving surface (18) away from the air blowing piece (4);
the second driving groove (14) comprises a second slot (20) for inserting a second driving rod (16), a second driving surface (21) positioned at the bottom of the second slot (20), and a second avoidance groove (22) positioned at one end of the first driving surface (18);
the second driving rod (16) is used for pressing the second driving surface (21) so as to enable the rotating sleeve (10) to rotate, and the second avoidance groove (22) is arranged at one end of the second driving surface (21) away from the air blowing piece (4);
the direction of the first driving rod (15) and the second driving rod (16) driving the rotating sleeve (10) are the same;
when the first driving rod (15) is inserted into the first avoidance groove (19), the positions of the second driving rod (16) and the second driving surface (21) correspond;
when the second driving rod (16) is inserted into the second avoidance groove (22), the first driving rod (15) corresponds to the first driving surface (18) in position.
2. The portable new energy forklift battery module according to claim 1, wherein the upper supporting seat (1) and the lower supporting seat (2) are rectangular, the first end cover (8) is located at the center of the upper supporting seat (1), and the second end cover (9) is located at the center of the lower supporting seat (2).
3. The portable new energy forklift battery module according to claim 2, wherein the guide bar (5) comprises a bracket fixedly connected with the first end cover (8), a bracket fixedly connected with the second end cover (9) and a sliding bar fixedly connected with the bracket;
the sliding rod passes through the air blowing piece (4).
4. The portable new energy forklift battery module according to claim 1, wherein one end of the spring is connected to the bracket, the other end of the spring is connected to the blower (4), and the spring is sleeved on the guide rod (5).
5. A portable new energy forklift battery module according to claim 3, wherein the cross section of the sliding rod is square.
6. The portable new energy forklift battery module according to claim 1, wherein the inner side of the air blowing piece (4) is provided with a plurality of inner balls, and the outer side of the air blowing piece is provided with a plurality of outer balls;
the inner ball and the outer ball are used for reducing the movement resistance of the air blowing piece (4);
the inner ball is abutted against the guide rod (5), and the outer ball is abutted against the inner side of the cylinder body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111522413 | 2021-12-13 | ||
| CN2021115224132 | 2021-12-13 |
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| Publication Number | Publication Date |
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| CN114628833A CN114628833A (en) | 2022-06-14 |
| CN114628833B true CN114628833B (en) | 2023-11-10 |
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| CN202111661960.9A Active CN114628833B (en) | 2021-12-13 | 2021-12-31 | Portable new forms of energy fork truck battery module |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118073722B (en) * | 2024-04-18 | 2024-06-25 | 深圳永泰数能科技有限公司 | Efficient turbulence intelligent uniform temperature control battery module and control method |
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