CN113517519A - Bus bar structure and welding method - Google Patents
Bus bar structure and welding method Download PDFInfo
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- CN113517519A CN113517519A CN202110296008.7A CN202110296008A CN113517519A CN 113517519 A CN113517519 A CN 113517519A CN 202110296008 A CN202110296008 A CN 202110296008A CN 113517519 A CN113517519 A CN 113517519A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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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
- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
A bus bar structure and a welding method, the bus bar structure comprises a plate-shaped bus bar body; one surface of the busbar body is provided with a first groove and a second groove, the first groove and the second groove are vertically connected, and the intersection point of the first groove and the second groove is arranged in the middle of the first groove and the second groove; the bus bar body is provided with a through hole, and the through hole is arranged on the intersection point. After the pole of the battery cell is welded with the busbar body, due to the design of the first groove and the second groove, a fully-closed or semi-closed cavity can be formed after welding, and the welding quality of the busbar body and the battery cell can be effectively improved.
Description
Technical Field
The invention belongs to the field of batteries, and particularly relates to a bus bar structure and a welding method.
Background
At present, a battery pack is used as a power source of an electric automobile, and a plurality of battery cells need to be connected in series or in parallel in a manner of welding a busbar with a pole of the battery cells in a production process, so that electric transmission is realized, but the welding quality of the busbar and the pole is difficult to guarantee due to various factors in actual production.
Therefore, it is desirable to provide a bus bar structure that can effectively improve the welding quality between the bus bar and the post in the prior art.
Disclosure of Invention
The invention aims to provide a bus bar structure to improve the welding quality of a bus bar and a pole in the prior art.
In order to achieve the above object, the present invention provides a bus bar structure including a plate-shaped bus bar body;
a first groove and a second groove are formed in one surface of the busbar body, the first groove and the second groove are vertically connected, and the intersection point of the first groove and the second groove is formed in the middle of the first groove and the second groove;
the bus bar body is provided with a through hole, and the through hole is arranged on the intersection point.
Optionally, the busbar structure is used for being welded with a battery cell, the first groove and the second groove are both rectangular, and the lengths of the first groove and the second groove are equal and are both greater than the diameter of a pole of the battery cell.
Optionally, the groove depth of the first groove is equal to the groove depth of the second groove.
A welding method is used for welding a battery cell and a busbar structure, wherein a pole is arranged on one side surface of the battery cell, and the method comprises the following steps:
step 1: closely attaching the pole of the battery cell to the surface of the busbar body, so that a first cavity is formed between the end surface of the pole and the first groove, and a second cavity is formed between the end surface of the pole and the second groove;
step 2: and welding the bus bar body with the pole of the battery cell from the other surface of the bus bar body, so that the one surface of the bus bar body is hermetically connected with the end face of the pole, and the first cavity and/or the second cavity are sealed.
Optionally, in step 2, the busbar body is welded to the pole of the battery cell by a U-shaped weld, and the U-shaped weld extends from one end of the first groove to the other end of the first groove through one end of the second groove, so as to seal the first cavity and seal the one end of the second groove.
Optionally, in the step 2, the busbar body is welded to the pole of the battery cell through an O-shaped weld, and the O-shaped weld returns to the one end of the first groove from one end of the first groove through one end of the second groove, the other end of the first groove, and the other end of the second groove in sequence, so as to seal the first cavity and the second cavity.
Optionally, the pole is cylindrical, and in step 1, the center of the pole is aligned with the intersection point of the first groove and the second groove.
Optionally, the U-shaped weld penetrates through the busbar body, and both the width W and the height H of the U-shaped weld are smaller than the lengths of the first groove and the second groove; and/or
In the step 2, at a sealing connection portion between the one surface of the busbar body and the end surface of the pole, a weld penetration is H1, at the one end and the other end of the first groove and the one end of the second groove, the weld penetration is H2, the groove depths of the first groove and the second groove are equal to each other and are H3, respectively, wherein H1 is greater than or equal to the sum of H2 and H3.
Optionally, after the step 2, the method further includes:
and step 3: inspecting the welded battery cell and the busbar structure;
the step 3 comprises the following steps:
extracting the gas in the first cavity and the second cavity through the through holes by using an air extraction device, and detecting the flow of the extracted gas by using an airflow detection device during extraction;
and comparing the flow with a preset flow range to judge the welding quality.
Optionally, the comparing the flow rate with a preset flow rate range to judge the welding quality includes:
and comparing the flow with a preset flow range, wherein if the flow is within the preset flow range, the welding quality meets the requirement.
The invention has the beneficial effects that:
a surface of busbar body is equipped with first recess and second recess, and first recess and second recess are connected perpendicularly, and the middle part of first recess and second recess is located to the nodical of first recess and second recess, with the utmost point post of electric core and busbar body welding back, because the design of first recess and second recess, will form totally closed or semi-enclosed cavity after the welding, can effectively promote the welding quality of busbar body and electric core.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic structural view of a busbar structure according to one embodiment of the present invention.
FIG. 2 illustrates a cross-sectional view of a busbar construction welded to a pole according to one embodiment of the invention.
Fig. 3 shows a schematic structural view of a bus bar structure welded to a pole by a U-shaped weld according to a welding method of an embodiment of the invention.
Fig. 4 shows a cross-sectional view of a welding method according to an embodiment of the invention, where the busbar arrangement is welded to the pole by means of a U-shaped weld seam.
Fig. 5 shows a schematic structural view of a bus bar structure welded to a pole by an O-shaped weld according to a welding method of an embodiment of the invention.
Fig. 6 shows a cross-sectional view of a bus bar structure welded to a pole by an O-weld according to a welding method of an embodiment of the invention.
Description of the reference numerals
1. A busbar body; 2. a through hole; 3. a first groove; 4. a second groove; 5. a pole column; 6. an electric core; 7. a U-shaped weld; 8. a first weld; 9. a second weld; 10. and (7) forming an O-shaped welding seam.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
A busbar structure according to the present invention includes a plate-shaped busbar body;
one surface of the busbar body is provided with a first groove and a second groove, the first groove and the second groove are vertically connected, and the intersection point of the first groove and the second groove is arranged in the middle of the first groove and the second groove;
the bus bar body is provided with a through hole, and the through hole is arranged on the intersection point.
Specifically, a surface of busbar body is equipped with first recess and second recess, and first recess and second recess are connected perpendicularly, and the middle part of first recess and second recess is located to the nodical of first recess and second recess, with the utmost point post of electric core and busbar body welding back, because the design of first recess and second recess, will form totally closed or semi-enclosed cavity after the welding, can effectively promote the welding quality of busbar body and electric core.
In one example, the busbar structure is used for welding with the battery cell, the first groove and the second groove are both rectangular, and the lengths of the first groove and the second groove are equal and are both larger than the diameter of the pole of the battery cell.
Specifically, the length of first recess and second recess equals and all is greater than the diameter of the utmost point post of electric core, and the length of first recess and the length of second recess all are greater than the diameter of utmost point post, and when the welding, if the welding is half sealed mode, can realize welding back semi-enclosed's cavity and outside intercommunication like this.
In one example, the groove depth of the first groove is equal to the groove depth of the second groove.
Particularly, the groove depth of the first groove is equal to that of the second groove, so that welding consistency can be effectively guaranteed and welding quality is improved during welding.
According to the welding method provided by the invention, the welding method is used for welding the battery cell and the busbar structure, one side surface of the battery cell is provided with the pole, and the method comprises the following steps:
step 1: closely attaching the pole of the battery cell to one surface of the busbar body, so that a first cavity is formed between the end surface of the pole and the first groove, and a second cavity is formed between the end surface of the pole and the second groove;
step 2: and welding the bus bar body with the pole of the battery cell from the other surface of the bus bar body, so that one surface of the bus bar body is hermetically connected with the end face of the pole, and the first cavity and/or the second cavity are sealed.
Specifically, by the welding method in step 1 and step 2, the busbar body can be welded with the electric core in a semi-sealed or fully-sealed manner, wherein two ends of the first groove are sealed, one end of the second groove is sealed, and the other end of the second groove can be communicated with the outside or sealed.
In one example, in step 2, the busbar body is welded to the pole of the battery cell by a U-shaped weld, which extends from one end of the first groove to the other end of the first groove through one end of the second groove, thereby sealing the first cavity and sealing one end of the second groove.
In one example, in step 2, the busbar body is welded to the pole of the battery cell through an O-shaped welding seam, and the O-shaped welding seam returns to one end of the first groove from one end of the first groove through one end of the second groove, the other end of the first groove and the other end of the second groove in sequence, so that the first cavity and the second cavity are sealed.
In one example, the post is cylindrical, and in step 1, the center of the post is aligned with the intersection of the first and second grooves.
Particularly, the center of the pole is aligned with the intersection point of the first groove and the second groove, so that the pole and the bus bar body can be welded conveniently, and the welding quality and the welding efficiency are improved.
In one example, a U-shaped weld penetrates the busbar body, and both the width W and the height H of the U-shaped weld are less than the length of the first and second grooves; and/or
In step 2, at the sealing connection position of one surface of the busbar body and the end surface of the pole, the weld penetration is H1, the weld penetration is H2 at one end and the other end of the first groove and one end of the second groove, the groove depths of the first groove and the second groove are equal and are respectively H3, wherein H1 is greater than or equal to the sum of H2 and H3.
Specifically, the width W and the height H of the U-shaped welding seam are smaller than the lengths of the first groove and the second groove, so that the U-shaped welding seam can penetrate through the first groove and the second groove of the busbar body and extend into the pole.
Further, if H1 is greater than or equal to the sum of H2 and H3, it indicates that the sealed joint between one surface of the busbar body and the end surface of the pole has good welding quality, meeting the electrical transmission requirement.
In one example, step 2 is followed by:
and step 3: inspecting the welded battery cell and busbar structure;
the step 3 comprises the following steps:
extracting the gas in the first cavity and the second cavity through the through holes by using an air extraction device, and detecting the flow of the extracted gas by using an airflow detection device during extraction;
and comparing the flow with a preset flow range to judge the welding quality.
Specifically, by detecting the flow of the gas, the welding quality of the welding position can be effectively judged, and if the welding quality is not good, the flow of the gas changes.
In one example, comparing the flow rate to a preset flow rate range to determine the weld quality includes:
and comparing the flow with a preset flow range, wherein if the flow is within the preset flow range, the welding quality meets the requirement.
Specifically, the preset flow range is obtained through multiple tests, and the variation curve of the pressure and the flow can be obtained by adjusting the pressure of the air extraction device, so that the preset flow range can be determined.
Examples
As shown in fig. 1, a bus bar structure includes a plate-shaped bus bar body 1;
one surface of the busbar body 1 is provided with a first groove 3 and a second groove 4, the first groove 3 is vertically connected with the second groove 4, and the intersection point of the first groove 3 and the second groove 4 is arranged in the middle of the first groove 3 and the second groove 4;
be equipped with through-hole 2 on the busbar body 1, through-hole 2 locates on the nodical.
The busbar structure is used for being welded with the battery cell 6, the first groove 3 and the second groove 4 are both rectangular, and the lengths of the first groove 3 and the second groove 4 are equal and are both larger than the diameter of the pole 5 of the battery cell 6. The groove depth of the first groove 3 is equal to the groove depth of the second groove 4.
As shown in fig. 1-2, a welding method for welding a battery cell 6 and a bus bar structure, where one side surface of the battery cell 6 is provided with a terminal post 5, includes:
step 1: closely attaching the pole 5 of the battery cell 6 to one surface of the busbar body 1, so that a first cavity is formed between the end surface of the pole 5 and the first groove 3, and a second cavity is formed between the end surface of the pole 5 and the second groove 4;
step 2: and welding the bus bar body 1 with the pole 5 of the battery cell 6 from the other surface of the bus bar body 1, so that one surface of the bus bar body 1 is hermetically connected with the end surface of the pole 5, and the first cavity and/or the second cavity are sealed.
Wherein the pole 5 is cylindrical, and in step 1, the center of the pole 5 is aligned with the intersection point of the first groove 3 and the second groove 4.
As shown in fig. 3 to 4, in step 2, the busbar body 1 is welded to the terminal post 5 of the battery cell 6 through a U-shaped welding seam 7, and the U-shaped welding seam 7 extends from one end of the first groove 3 to the other end of the first groove 3 through one end of the second groove 4, so as to seal the first cavity and seal one end of the second groove 4.
The U-shaped welding seam 7 penetrates through the busbar body 1, and the width W and the height H of the U-shaped welding seam 7 are smaller than the lengths of the first groove 3 and the second groove 4; and/or in step 2, at the sealing connection position of one surface of the busbar body 1 and the end surface of the pole 5, the weld penetration depth is H1, at one end and the other end of the first groove 3 and one end of the second groove 4, the weld penetration depth is H2, the groove depths of the first groove 3 and the second groove 4 are equal to each other and are respectively H3, wherein H1 is greater than or equal to the sum of H2 and H3.
and step 3: inspecting the welded battery cell 6 and the busbar structure;
the step 3 comprises the following steps:
the air extraction device is used for extracting the air in the first cavity and the second cavity through the through hole 2, and the airflow detection device is used for detecting the flow of the extracted air during extraction;
and comparing the flow with a preset flow range to judge the welding quality.
Comparing the flow with a preset flow range to judge the welding quality comprises:
and comparing the flow with a preset flow range, wherein if the flow is within the preset flow range, the welding quality meets the requirement.
As shown in fig. 5 to 6, in step 2, the busbar body 1 is welded to the terminal post 5 of the battery cell 6 through an O-shaped welding seam 10, and the O-shaped welding seam 10 returns to one end of the first groove 3 from one end of the first groove 3 through one end of the second groove 4, the other end of the first groove 3, and the other end of the second groove 4 in sequence, so as to seal the first cavity and the second cavity.
To sum up, a surface of busbar body is equipped with first recess and second recess, and first recess and second recess are connected perpendicularly, and the middle part of first recess and second recess is located to the nodical of first recess and second recess, with the utmost point post of electric core and busbar body welding back, because the design of first recess and second recess, will form totally closed or semi-enclosed cavity after the welding, can effectively promote the welding quality of busbar body and electric core.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A bus bar structure is characterized by comprising a plate-shaped bus bar body;
a first groove and a second groove are formed in one surface of the busbar body, the first groove and the second groove are vertically connected, and the intersection point of the first groove and the second groove is formed in the middle of the first groove and the second groove;
the bus bar body is provided with a through hole, and the through hole is arranged on the intersection point.
2. The busbar structure according to claim 1, wherein the busbar structure is configured to be welded to a cell, the first groove and the second groove are rectangular, and the first groove and the second groove have the same length and are both larger than the diameter of a pole of the cell.
3. The buss bar structure of claim 1, wherein the first recess has a groove depth equal to a groove depth of the second recess.
4. A welding method for welding a cell, one side surface of which is provided with a terminal post, with the busbar structure according to any one of claims 1 to 3, the method comprising:
step 1: closely attaching the pole of the battery cell to the surface of the busbar body, so that a first cavity is formed between the end surface of the pole and the first groove, and a second cavity is formed between the end surface of the pole and the second groove;
step 2: and welding the bus bar body with the pole of the battery cell from the other surface of the bus bar body, so that the one surface of the bus bar body is hermetically connected with the end face of the pole, and the first cavity and/or the second cavity are sealed.
5. The welding method according to claim 4, wherein in the step 2, the busbar body is welded to the pole of the battery cell by a U-shaped weld that extends from one end of the first groove to the other end of the first groove through one end of the second groove, thereby sealing the first cavity and sealing the one end of the second groove.
6. The welding method according to claim 4, wherein in the step 2, the busbar body is welded to the pole of the battery cell by an O-shaped weld, and the O-shaped weld returns to the one end of the first groove from the one end of the first groove through one end of the second groove, the other end of the first groove, and the other end of the second groove in this order, thereby sealing the first cavity and the second cavity.
7. The welding method of claim 4, wherein the post is cylindrical, and in step 1, a center of the post is aligned with an intersection of the first groove and the second groove.
8. The welding method of claim 5, wherein the U-shaped weld penetrates the busbar body and has a width W and a height H that are both less than the length of the first and second grooves; and/or
In the step 2, at a sealing connection portion between the one surface of the busbar body and the end surface of the pole, a weld penetration is H1, at the one end and the other end of the first groove and the one end of the second groove, the weld penetration is H2, the groove depths of the first groove and the second groove are equal to each other and are H3, respectively, wherein H1 is greater than or equal to the sum of H2 and H3.
9. The welding method of claim 5, further comprising, after step 2:
and step 3: inspecting the welded battery cell and the busbar structure;
the step 3 comprises the following steps:
extracting the gas in the first cavity and the second cavity through the through holes by using an air extraction device, and detecting the flow of the extracted gas by using an airflow detection device during extraction;
and comparing the flow with a preset flow range to judge the welding quality.
10. The welding method of claim 9, wherein comparing the flow rate to a preset flow rate range to determine a weld quality comprises:
and comparing the flow with a preset flow range, wherein if the flow is within the preset flow range, the welding quality meets the requirement.
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Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060292904A1 (en) * | 2005-06-23 | 2006-12-28 | Autonetworks Technologies, Ltd. | Electric connection box |
| CN201022087Y (en) * | 2006-09-28 | 2008-02-13 | 比亚迪股份有限公司 | A battery and connection structure of this battery |
| US20100310927A1 (en) * | 2008-01-28 | 2010-12-09 | Tadashi Imai | Current collector terminal plate for secondary battery, secondary battery, and method for producing secondary battery |
| JP2012084319A (en) * | 2010-10-08 | 2012-04-26 | Auto Network Gijutsu Kenkyusho:Kk | Busbar for battery pack and busbar module |
| CN203826461U (en) * | 2013-12-19 | 2014-09-10 | 周培荣 | End-surface-welded cylindrical lithium battery |
| CN104103850A (en) * | 2013-04-09 | 2014-10-15 | 珠海银隆新能源有限公司 | Cylindrical lithium ion battery |
| JP2015025471A (en) * | 2013-07-24 | 2015-02-05 | 株式会社デンソー | Control device |
| CN104390747A (en) * | 2014-11-27 | 2015-03-04 | 中国船舶重工集团公司第七二四研究所 | Connector welding seal detection method |
| CN204834764U (en) * | 2015-06-17 | 2015-12-02 | 深圳市沃特玛电池有限公司 | Cylindrical high magnification lithium ion battery of edge weld |
| CN205508961U (en) * | 2016-02-25 | 2016-08-24 | 深圳市沃特玛电池有限公司 | Lithium ion power battery |
| CN205790219U (en) * | 2016-06-02 | 2016-12-07 | 东莞市迈科新能源有限公司 | A kind of full lug cylindrical steel case lithium ion battery |
| CN206250266U (en) * | 2016-12-24 | 2017-06-13 | 东莞市卓安精机自动化设备有限公司 | A kind of lithium battery bus structures |
| CN206619636U (en) * | 2017-03-30 | 2017-11-07 | 陕西沃特玛新能源有限公司 | A kind of battery |
| CN207409578U (en) * | 2017-10-26 | 2018-05-25 | 合肥国轩高科动力能源有限公司 | Bus bar |
| CN207690903U (en) * | 2017-11-28 | 2018-08-03 | 蜂鸟电动汽车 | A kind of lithium battery group and its busbar assembly |
| CN108630901A (en) * | 2017-03-23 | 2018-10-09 | 四川南都国舰新能源股份有限公司 | Pole group manufacturing method of the lead-acid accumulator based on sheath copper bus-bar |
| CN208127292U (en) * | 2018-03-15 | 2018-11-20 | 宁德时代新能源科技股份有限公司 | Busbar connector and battery modules |
| CN208189922U (en) * | 2018-04-27 | 2018-12-04 | 镇江科信动力***设计研究有限公司 | A kind of busbar connector of high-multiplying power discharge mould group |
| CN208400966U (en) * | 2018-05-29 | 2019-01-18 | 江西中汽瑞华新能源科技有限公司 | A kind of high-capacity cylindrical serondary lithium battery |
| CN109638214A (en) * | 2019-01-31 | 2019-04-16 | 广州小鹏汽车科技有限公司 | A kind of connection structure and battery modules of battery electrode column and busbar connector |
| CN111220333A (en) * | 2020-01-14 | 2020-06-02 | 中航锂电（洛阳）有限公司 | Battery module welding detection method and device |
| CN111331293A (en) * | 2018-12-19 | 2020-06-26 | 郑州深澜动力科技有限公司 | Welding positioning tool for conducting strips among single batteries |
| CN111785905A (en) * | 2020-07-30 | 2020-10-16 | 厦门海辰新能源科技有限公司 | Connection piece, top cap subassembly and battery |
-
2021
- 2021-03-19 CN CN202110296008.7A patent/CN113517519B/en active Active
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060292904A1 (en) * | 2005-06-23 | 2006-12-28 | Autonetworks Technologies, Ltd. | Electric connection box |
| CN201022087Y (en) * | 2006-09-28 | 2008-02-13 | 比亚迪股份有限公司 | A battery and connection structure of this battery |
| US20100310927A1 (en) * | 2008-01-28 | 2010-12-09 | Tadashi Imai | Current collector terminal plate for secondary battery, secondary battery, and method for producing secondary battery |
| JP2012084319A (en) * | 2010-10-08 | 2012-04-26 | Auto Network Gijutsu Kenkyusho:Kk | Busbar for battery pack and busbar module |
| CN104103850A (en) * | 2013-04-09 | 2014-10-15 | 珠海银隆新能源有限公司 | Cylindrical lithium ion battery |
| JP2015025471A (en) * | 2013-07-24 | 2015-02-05 | 株式会社デンソー | Control device |
| CN203826461U (en) * | 2013-12-19 | 2014-09-10 | 周培荣 | End-surface-welded cylindrical lithium battery |
| CN104390747A (en) * | 2014-11-27 | 2015-03-04 | 中国船舶重工集团公司第七二四研究所 | Connector welding seal detection method |
| CN204834764U (en) * | 2015-06-17 | 2015-12-02 | 深圳市沃特玛电池有限公司 | Cylindrical high magnification lithium ion battery of edge weld |
| CN205508961U (en) * | 2016-02-25 | 2016-08-24 | 深圳市沃特玛电池有限公司 | Lithium ion power battery |
| CN205790219U (en) * | 2016-06-02 | 2016-12-07 | 东莞市迈科新能源有限公司 | A kind of full lug cylindrical steel case lithium ion battery |
| CN206250266U (en) * | 2016-12-24 | 2017-06-13 | 东莞市卓安精机自动化设备有限公司 | A kind of lithium battery bus structures |
| CN108630901A (en) * | 2017-03-23 | 2018-10-09 | 四川南都国舰新能源股份有限公司 | Pole group manufacturing method of the lead-acid accumulator based on sheath copper bus-bar |
| CN206619636U (en) * | 2017-03-30 | 2017-11-07 | 陕西沃特玛新能源有限公司 | A kind of battery |
| CN207409578U (en) * | 2017-10-26 | 2018-05-25 | 合肥国轩高科动力能源有限公司 | Bus bar |
| CN207690903U (en) * | 2017-11-28 | 2018-08-03 | 蜂鸟电动汽车 | A kind of lithium battery group and its busbar assembly |
| CN208127292U (en) * | 2018-03-15 | 2018-11-20 | 宁德时代新能源科技股份有限公司 | Busbar connector and battery modules |
| CN208189922U (en) * | 2018-04-27 | 2018-12-04 | 镇江科信动力***设计研究有限公司 | A kind of busbar connector of high-multiplying power discharge mould group |
| CN208400966U (en) * | 2018-05-29 | 2019-01-18 | 江西中汽瑞华新能源科技有限公司 | A kind of high-capacity cylindrical serondary lithium battery |
| CN111331293A (en) * | 2018-12-19 | 2020-06-26 | 郑州深澜动力科技有限公司 | Welding positioning tool for conducting strips among single batteries |
| CN109638214A (en) * | 2019-01-31 | 2019-04-16 | 广州小鹏汽车科技有限公司 | A kind of connection structure and battery modules of battery electrode column and busbar connector |
| CN111220333A (en) * | 2020-01-14 | 2020-06-02 | 中航锂电（洛阳）有限公司 | Battery module welding detection method and device |
| CN111785905A (en) * | 2020-07-30 | 2020-10-16 | 厦门海辰新能源科技有限公司 | Connection piece, top cap subassembly and battery |
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