CN104253289A - Power battery module heat elimination unit and battery heat elimination module - Google Patents
Power battery module heat elimination unit and battery heat elimination module Download PDFInfo
- Publication number
- CN104253289A CN104253289A CN201310268248.1A CN201310268248A CN104253289A CN 104253289 A CN104253289 A CN 104253289A CN 201310268248 A CN201310268248 A CN 201310268248A CN 104253289 A CN104253289 A CN 104253289A
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- power battery
- conducting strip
- heat
- module
- heat radiation
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- 230000008030 elimination Effects 0.000 title abstract 8
- 238000003379 elimination reaction Methods 0.000 title abstract 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 61
- 239000002184 metal Substances 0.000 claims abstract description 61
- 230000005855 radiation Effects 0.000 claims description 72
- 239000012634 fragment Substances 0.000 claims description 20
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
Classifications
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a power battery module heat elimination unit and a power battery heat elimination module, and relates to a power battery module unit and a power battery module. According to the present invention, the temperature uniformity of every power battery in the power battery module can be achieved, and the performance stability of the power battery can be ensured; four edges of the electric conduction sheet are provided with borders, a plurality of round blind holes are processed on the upper plane of the electric conduction sheet, the metal radial projecting spring sheet is fixed on the side wall of the round blind hole, the metal axial projecting spring sheet is fixed on the bottom part in the round blind hole, a plurality of projecting metal connecting sheets are fixed on the four borders of the electric conduction sheet, a plurality of power batteries are arranged below the electric conduction sheet, and the lower plane of the electric conduction sheet corresponding to the plural of the round blind holes and the plural of the power battery positive electrodes form welding; and the advantages of simple structure, uniform heat elimination, stable performance and low cost are provided, and the power battery module heat elimination unit and the power battery heat elimination module are used for battery heat elimination.
Description
Technical field
The present invention relates to a kind of power battery module unit and electrokinetic cell module.
Background technology
Power battery module all can produce certain heat in charging and discharging process, and the unbalanced and overheated meeting of temperature of electrokinetic cell directly affects the technical performance of power battery module, useful life and fail safe.Authorization Notice No. is CN202067878U, authorized announcement date be December 07 in 2011 day, be called that the utility model patent of " a kind of vertical plane oscillating-flow heat tube battery heat-dissipation module " and Authorization Notice No. are CN202150527U, authorized announcement date is that 2012 02 month 22 day, are called the method that the employing hot pipe technique that the utility model patent of " a kind of power battery heat-radiating device based on separate type pulsating heat pipe " proposes dispels the heat to electrokinetic cell, its complex structure and cost is very high.Publication number is CN102623770A, publication date is that 2012 08 month 01 day, is called that the method that the application for a patent for invention of " a kind of power battery heat-radiating device " proposes to adopt turbofan to carry out air blast cooling is dispelled the heat to electrokinetic cell, its shortcoming is that Battery case needs reserved turbofan installing space and duct space, and this technology is difficult to solve the battery temperature deviation of Battery case internal temperature excessive and useful life of turbofan and the problem of reliability.
Summary of the invention
The object of this invention is to provide a kind of power battery module heat-sink unit and electrokinetic cell heat radiation module, it can realize each the temperature of powered cell uniformity in power battery module, and can ensure electrokinetic cell stable performance.
The present invention is that the solve the problem technical scheme taked is as follows:
Power battery module heat-sink unit, it comprises conducting strip, described conducting strip adopts sheet metal machine-shaping, four limits of conducting strip are equipped with frame, the upper surface of frame is concordant with the upper plane of conducting strip, it is the blind round hole of matched in clearance with the diameter configuration of electrokinetic cell that the upper plane machining of conducting strip has multiple, it is the protruding shell fragment of metallic radial of interference fit with the diameter configuration of electrokinetic cell that the sidewall of blind round hole is fixed with multiple, bottom in blind round hole is fixed with the protruding shell fragment of multiple metal axial, four frames of conducting strip are fixed with the metal connecting sheet of multiple projection, the below of conducting strip is provided with multiple electrokinetic cell, multiple electrokinetic cell and multiple blind round hole one_to_one corresponding are arranged, multiple power battery anode welds with conducting strip lower plane.
Combine by power battery module heat-sink unit the electrokinetic cell heat radiation module formed, described electrokinetic cell heat radiation module is serial power battery heat radiation module, parallel power battery heat radiation module or connection in series-parallel electrokinetic cell heat radiation module;
Described serial power battery heat radiation module comprises at least two power battery module heat-sink units, at least two power battery module heat-sink units are set up in parallel according to vertical direction, the power battery cathode being positioned at the power battery module heat-sink unit of top is inserted into the corresponding blind round hole that be positioned at power battery module heat-sink unit it below adjacent with the power battery module heat-sink unit above described being positioned at respectively, and the power battery cathode being positioned at the power battery module heat-sink unit of top is adjacent to mutually with the protruding shell fragment of the metallic radial of the corresponding blind round hole of the power battery module heat-sink unit be positioned at below it and the protruding shell fragment of metal axial and realizes being electrically connected,
Described parallel power battery heat radiation module comprises at least two power battery module heat-sink units, at least two power battery module heat-sink unit horizontal alignment are arranged, and the metal connecting sheet on two adjacent frames of adjacent two power battery module heat-sink units is adjacent to mutually and realizes electrical connection;
Described connection in series-parallel electrokinetic cell heat radiation module comprises at least two serial power battery heat radiation modules, each serial power battery heat radiation module comprises at least two power battery module heat-sink units, at least two serial power battery heat radiation module horizontal alignment are arranged, and the metal connecting sheet on two adjacent frames of adjacent two power battery module heat-sink units is adjacent to mutually and realizes electrical connection.
The invention has the beneficial effects as follows: the heat conductivity 1, utilizing metallic conduction sheet and metal heat sink and/or metallic plate, power battery anode and negative pole is connected by metallic conduction sheet, can in balanced power battery module heat-sink unit each electrokinetic cell inner with outside temperature difference, electrokinetic cell can be exported to metal heat sink and/or metallic plate (the power battery module shell be made up of four pieces of metallic plates) and distributes by the inner and outside heat produced, make each temperature of powered cell uniformity.2, power battery module heat-sink unit of the present invention and electrokinetic cell heat radiation module make use of the natural heat dissipation mechanism of the thermal conduction characteristic of metal, have that structure is simple, heat radiation evenly, stable performance and advantage with low cost, the useful life about 30% of electrokinetic cell can be extended.
Accompanying drawing explanation
Fig. 1 is the principal section view of power battery module heat-sink unit of the present invention; Fig. 2 is that the axle of metallic conduction sheet of the present invention surveys view; Fig. 3 is the principal section view that serial power battery of the present invention heat radiation module is provided with metal heat sink; Fig. 4 is the principal section view that parallel power battery of the present invention heat radiation module is provided with metal heat sink; Fig. 5 is the principal section view that connection in series-parallel electrokinetic cell of the present invention heat radiation module is provided with metal heat sink; Fig. 6 is the principal section view that serial power battery of the present invention heat radiation module is provided with metallic plate.
Embodiment
Embodiment one: composition graphs 1 and Fig. 2 explanation, the power battery module heat-sink unit of present embodiment, it comprises conducting strip 2, described conducting strip 2 adopts sheet metal machine-shaping, four limits of conducting strip 2 are equipped with frame 2-5, the upper surface of frame 2-5 is concordant with the upper plane 2-1 of conducting strip 2, it is that the blind round hole 2-2(of matched in clearance and blind round hole 2-2 do not communicate with the lower plane of conducting strip 2 with the diameter configuration of electrokinetic cell that the upper plane 2-1 of conducting strip 2 is processed with multiple, blind round hole 2-2 adopts drawing process to process), it is the protruding shell fragment 2-3 of metallic radial of interference fit with the diameter configuration of electrokinetic cell that the sidewall of blind round hole 2-2 is fixed with multiple, bottom in blind round hole 2-2 is fixed with the protruding shell fragment 2-4 of multiple metal axial, four frame 2-5 of conducting strip 2 are fixed with the metal connecting sheet 2-7 of multiple projection, the below of conducting strip 2 is provided with multiple electrokinetic cell, multiple electrokinetic cell and multiple blind round hole 2-2 one_to_one corresponding are arranged, multiple power battery anode 3 welds with conducting strip 2 lower plane.
Electrokinetic cell is metal shell, and electrokinetic cell upper surface has a boss to be power battery anode 3, and the lateral surface of electrokinetic cell and lower surface are power battery cathode 4.
The shape of the protruding shell fragment 2-3 of the metallic radial in present embodiment, the protruding shell fragment 2-4 and metal connecting sheet 2-7 of metal axial is circular shape.The protruding shell fragment 2-3 of metallic radial and the protruding shell fragment 2-4 of metal axial adopts circular shape, in order to increase the reliability that conducting strip 2 contacts with power battery cathode 4; The shape of metal connecting sheet 2-7 is circular arc, in order to increase the reliability that adjacent two metal connecting sheet 2-7 contact.
Multiple blind round hole 2-2 of described conducting strip 2 are the matrix form set-up mode that four lines four arranges; The quantity being fixed on the protruding shell fragment 2-3 of metallic radial on the sidewall of blind round hole 2-2 is four, and four protruding shell fragment 2-3 of metallic radial are along the uniform setting of sidewall of blind round hole 2-2; The quantity being fixed on the protruding shell fragment 2-4 of metal axial of blind round hole 2-2 inner bottom part is four, and four protruding shell fragment 2-4 of metal axial are symmetrical arranged relative to the center line of blind round hole 2-2.
Embodiment two: composition graphs 3 and Fig. 6 illustrate, at least one frame 2-5 of the described conducting strip 2 of present embodiment is fixed with metal heat sink 1 or metallic plate 6.Object is the area of dissipation increasing conducting strip 2.In present embodiment, undocumented technical characteristic is identical with embodiment one.
Embodiment three: one to three frame 2-5 of conducting strip 2 described in present embodiment is fixed with metal heat sink 1, at least one frame 2-5 of all the other frames 2-5 on conducting strip 2 except the frame 2-5 being fixed with metal heat sink 1 is fixed with metallic plate 6, and metal heat sink 1 and metallic plate 6 quantity sum are less than or equal to the total quantity of the frame 2-5 of conducting strip 2.Object is the area of dissipation increasing conducting strip 2.In present embodiment, undocumented technical characteristic is identical with embodiment one.
Embodiment four: composition graphs 1 to Fig. 6 illustrates, electrokinetic cell heat radiation module described in present embodiment is parallel power battery heat radiation module or serial power battery heat radiation module; Described electrokinetic cell heat radiation module is serial power battery heat radiation module, parallel power battery heat radiation module or connection in series-parallel electrokinetic cell heat radiation module;
Described serial power battery heat radiation module comprises at least two power battery module heat-sink units, at least two power battery module heat-sink units are set up in parallel according to vertical direction, the power battery cathode 4 being positioned at the power battery module heat-sink unit of top is inserted into the corresponding blind round hole 2-2 that be positioned at power battery module heat-sink unit it below adjacent with the power battery module heat-sink unit above described being positioned at respectively, and the power battery cathode 4 of power battery module heat-sink unit being positioned at top is adjacent to the protruding shell fragment 2-3 of the metallic radial of the corresponding blind round hole 2-2 of the power battery module heat-sink unit be positioned at below it and metal axial protruding shell fragment 2-4 phase and realizes being electrically connected,
Described parallel power battery heat radiation module comprises at least two power battery module heat-sink units, at least two power battery module heat-sink unit horizontal alignment are arranged, and the metal connecting sheet 2-7 phase on two adjacent frame 2-5 of adjacent two power battery module heat-sink units is adjacent to and realizes electrical connection;
Described connection in series-parallel electrokinetic cell heat radiation module comprises at least two serial power battery heat radiation modules, each serial power battery heat radiation module comprises at least two power battery module heat-sink units, at least two serial power battery heat radiation module horizontal alignment are arranged, and the metal connecting sheet 2-7 phase on two adjacent frame 2-5 of adjacent two power battery module heat-sink units is adjacent to and realizes electrical connection.In present embodiment, undocumented technical characteristic is identical with embodiment one.
Embodiment five: composition graphs 2 to Fig. 6 illustrates, naked at least one frame 2-5 be exposed on the external of conducting strip 2 of the conducting strip 2 of serial power battery heat radiation module described in present embodiment, the conducting strip 2 of parallel power battery heat radiation module or connection in series-parallel electrokinetic cell heat radiation module is fixed with metal heat sink 1 or metallic plate 6.Object is the area of dissipation increasing conducting strip 2.In present embodiment, undocumented technical characteristic is identical with embodiment four.
Embodiment six: naked at least one frame 2-5 be exposed on the external of conducting strip 2 of the conducting strip 2 of serial power battery heat radiation module described in present embodiment, the conducting strip 2 of parallel power battery heat radiation module or connection in series-parallel electrokinetic cell heat radiation module is fixed with metal heat sink 1, and the quantity of metal heat sink 1 is less than the quantity of the naked frame 2-5 be exposed on the external of conducting strip 2 of the conducting strip 2 of serial power battery heat radiation module, the conducting strip 2 of parallel power battery heat radiation module or connection in series-parallel electrokinetic cell heat radiation module; At least one frame 2-5 of naked all the other frames 2-5 except the frame 2-5 being fixed with metal heat sink 1 be exposed on the external of conducting strip 2 of the conducting strip 2 of described serial power battery heat radiation module, the conducting strip 2 of parallel power battery heat radiation module or connection in series-parallel electrokinetic cell heat radiation module is fixed with metallic plate 6, and the conducting strip 2 that metal heat sink 1 and metallic plate 6 quantity sum are less than or equal to the conducting strip 2 of serial power battery radiating module, parallel power battery dispels the heat module or connection in series-parallel electrokinetic cell dispel the heat the total quantity of the naked frame 2-5 be exposed on the external of conducting strip 2 of module.Object is the area of dissipation increasing conducting strip 2.In present embodiment, undocumented technical characteristic is identical with embodiment four.
The capacity of power battery module if need to be multiplied, can by several power battery module heat-sink unit lay out in parallel together, lay out in parallel several power battery module heat-sink units together can be connected in parallel by the metal connecting sheet 2-7 of multiple projections fixing on the frame 2-5 of conducting strip 2, form a more jumbo electrokinetic cell heat radiation module thus.
Embodiment seven: composition graphs 6 illustrates, is fixed with heat conductive isolation sheet 7 between the metal heat sink 1 of present embodiment and the frame 2-5 of corresponding conducting strip 2 or between the frame 2-5 of metallic plate 6 and corresponding conducting strip 2.Be applicable to the occasion that metal heat sink 1 and metallic plate 6 needs and metallic conduction sheet 2 insulate.Present embodiment is applicable to embodiment two or five.
Embodiment eight: be fixed with heat conductive isolation sheet 7 respectively between the metallic plate 6 of present embodiment and the frame 2-5 of corresponding conducting strip 2 and between the frame 2-5 of metal heat sink 1 and corresponding conducting strip 2.Be applicable to the occasion that metal heat sink 1 and metallic plate 6 needs and metallic conduction sheet 2 insulate.Present embodiment is applicable to embodiment three or six.
Embodiment nine: composition graphs 2 to Fig. 6 illustrates is fixation, and four frame 2-5 of conducting strip 2 process multiple connecting hole 2-6, and metal heat sink 1 or metallic plate 6 are fixedly connected with conducting strip 2 by the screw 5 be connected with connecting hole 2-6.Be convenient to be connected and fixed.Present embodiment is applicable to embodiment two or five.
Embodiment ten: be fixation, four frame 2-5 of conducting strip 2 process multiple connecting hole 2-6, and metal heat sink 1 and metallic plate 6 are fixedly connected with conducting strip 2 by the screw 5 be connected with connecting hole 2-6.Be convenient to be connected and fixed.Present embodiment is applicable to embodiment three or six.
Metal heat sink 1 in embodiment two to ten is aluminium alloy heat radiator, good heat dissipation effect.
Claims (6)
1. a power battery module heat-sink unit, it is characterized in that: it comprises conducting strip (2), described conducting strip (2) adopts sheet metal machine-shaping, four limits of conducting strip (2) are equipped with frame (2-5), the upper surface of frame (2-5) is concordant with the upper plane (2-1) of conducting strip (2), it is the blind round hole (2-2) of matched in clearance with the diameter configuration of electrokinetic cell that the upper plane (2-1) of conducting strip (2) is processed with multiple, it is the protruding shell fragment (2-3) of metallic radial of interference fit with the diameter configuration of electrokinetic cell that the sidewall of blind round hole (2-2) is fixed with multiple, bottom in blind round hole (2-2) is fixed with the protruding shell fragment (2-4) of multiple metal axial, four frames (2-5) of conducting strip (2) are fixed with the metal connecting sheet (2-7) of multiple projection, the below of conducting strip (2) is provided with multiple electrokinetic cell, multiple electrokinetic cell and multiple blind round hole (2-2) one_to_one corresponding are arranged, multiple power battery anode (3) welds with conducting strip (2) lower plane.
2. power battery module heat-sink unit according to claim 1, is characterized in that: at least one frame (2-5) of described conducting strip (2) is fixed with metal heat sink (1) or metallic plate (6).
3. power battery module heat-sink unit according to claim 1, it is characterized in that: one to three frame (2-5) of described conducting strip (2) is fixed with metal heat sink (1), at least one frame (2-5) of all the other frames (2-5) on conducting strip (2) except the frame (2-5) being fixed with metal heat sink (1) is fixed with metallic plate (6), and metal heat sink (1) and metallic plate (6) quantity sum are less than or equal to the total quantity of the frame (2-5) of conducting strip (2).
4. combine by power battery module heat-sink unit described in claim 1 the electrokinetic cell heat radiation module formed, it is characterized in that: described electrokinetic cell heat radiation module is serial power battery heat radiation module, parallel power battery heat radiation module or connection in series-parallel electrokinetic cell heat radiation module;
Described serial power battery heat radiation module comprises at least two power battery module heat-sink units, at least two power battery module heat-sink units are set up in parallel according to vertical direction, the power battery cathode (4) being positioned at the power battery module heat-sink unit of top is inserted into the corresponding blind round hole (2-2) that be positioned at power battery module heat-sink unit it below adjacent with the power battery module heat-sink unit above described being positioned at respectively, and the power battery cathode (4) of power battery module heat-sink unit being positioned at top is adjacent to mutually with the protruding shell fragment (2-3) of the metallic radial of the blind round hole (2-2) of the corresponding of the power battery module heat-sink unit be positioned at below it and the protruding shell fragment (2-4) of metal axial and realizes being electrically connected,
Described parallel power battery heat radiation module comprises at least two power battery module heat-sink units, at least two power battery module heat-sink unit horizontal alignment are arranged, and the metal connecting sheet (2-7) on two adjacent frames (2-5) of adjacent two power battery module heat-sink units is adjacent to mutually and realizes electrical connection;
Described connection in series-parallel electrokinetic cell heat radiation module comprises at least two serial power battery heat radiation modules, each serial power battery heat radiation module comprises at least two power battery module heat-sink units, at least two serial power battery heat radiation module horizontal alignment are arranged, and the metal connecting sheet (2-7) on two adjacent frames (2-5) of adjacent two power battery module heat-sink units is adjacent to mutually and realizes electrical connection.
5. electrokinetic cell heat radiation module according to claim 4, is characterized in that: naked at least one frame (2-5) be exposed on the external of conducting strip (2) of the conducting strip (2) of described serial power battery heat radiation module, the conducting strip (2) of parallel power battery heat radiation module or connection in series-parallel electrokinetic cell heat radiation module is fixed with metal heat sink (1) or metallic plate (6).
6. according to claim 4 electrokinetic cell heat radiation module, it is characterized in that: the conducting strip (2) of described serial power battery heat radiation module, the conducting strip (2) of parallel power battery heat radiation module or naked at least one frame (2-5) be exposed on the external of conducting strip (2) of connection in series-parallel electrokinetic cell heat radiation module are fixed with metal heat sink (1), and the quantity of metal heat sink (1) is less than the conducting strip (2) of serial power battery heat radiation module, the quantity of the conducting strip (2) of parallel power battery heat radiation module or the naked frame (2-5) be exposed on the external of conducting strip (2) of connection in series-parallel electrokinetic cell heat radiation module, the conducting strip (2) of described serial power battery heat radiation module, at least one frame (2-5) of the conducting strip (2) of parallel power battery heat radiation module or naked all the other frames (2-5) except the frame (2-5) being fixed with metal heat sink (1) be exposed on the external of conducting strip (2) of connection in series-parallel electrokinetic cell heat radiation module is fixed with metallic plate (6), metal heat sink (1) and metallic plate (6) quantity sum are less than or equal to the conducting strip (2) of serial power battery radiating module, the total quantity of the conducting strip (2) of parallel power battery heat radiation module or the naked frame (2-5) be exposed on the external of conducting strip (2) of connection in series-parallel electrokinetic cell heat radiation module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310268248.1A CN104253289B (en) | 2013-06-28 | 2013-06-28 | Power battery module heat-sink unit and electrokinetic cell heat radiation module |
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| CN201310268248.1A CN104253289B (en) | 2013-06-28 | 2013-06-28 | Power battery module heat-sink unit and electrokinetic cell heat radiation module |
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| CN104253289B CN104253289B (en) | 2017-06-09 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106711384A (en) * | 2016-12-06 | 2017-05-24 | 深圳市沃特玛电池有限公司 | Battery module |
| CN106785184A (en) * | 2015-11-25 | 2017-05-31 | 哈尔滨智明科技有限公司 | A kind of heat dissipating method of power battery module |
| WO2018065161A1 (en) * | 2016-10-05 | 2018-04-12 | Continental Automotive Gmbh | Energy cell holding device for a motor vehicle |
| CN107978817A (en) * | 2016-10-21 | 2018-05-01 | 王怀云 | A kind of temperature control method of cylindrical power battery group |
| CN108023038A (en) * | 2016-11-02 | 2018-05-11 | 王怀云 | Cylindrical power battery combination metal framework structure |
| CN110024165A (en) * | 2016-10-14 | 2019-07-16 | 伊奈维特有限责任公司 | The contact plate of the joint connections electrically engaged is established with the terminal of at least one set of battery unit in battery module including at least one |
| CN112928394A (en) * | 2019-12-05 | 2021-06-08 | 哈尔滨子沐新能源科技有限公司 | Elastic conducting strip composed of plastic spring plate and metal tongue-shaped spring plate |
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| CN112928394A (en) * | 2019-12-05 | 2021-06-08 | 哈尔滨子沐新能源科技有限公司 | Elastic conducting strip composed of plastic spring plate and metal tongue-shaped spring plate |
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| Publication number | Publication date |
|---|---|
| CN104253289B (en) | 2017-06-09 |
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