CN106816571B - Electrical connection device - Google Patents
Electrical connection device Download PDFInfo
- Publication number
- CN106816571B CN106816571B CN201510860286.5A CN201510860286A CN106816571B CN 106816571 B CN106816571 B CN 106816571B CN 201510860286 A CN201510860286 A CN 201510860286A CN 106816571 B CN106816571 B CN 106816571B
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- China
- Prior art keywords
- electrical connection
- electrically connected
- voltage sampling
- conductive
- conductive terminal
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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
- H01M50/50—Current conducting connections for cells or batteries
-
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
-
- 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)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides an electrical connection device, which comprises an electrical connection unit. The electrical connection unit includes: insulating casing, conductive terminal and voltage sampling cable subassembly. The conductive terminal is arranged in the insulating shell and is used for being electrically connected with a pole of the battery top cover; one end of the voltage sampling cable assembly is used for connecting to an external voltage sampling device, and the other end of the voltage sampling cable assembly penetrates into the insulating shell and is electrically connected to the conductive terminal. In the electrical connection device according to the present invention, the insulating housing is used to fix the voltage sampling cable assembly to avoid the influence of sampling accuracy due to poor contact; the conductive terminal is used for electrically connecting the poles of the battery top cover so as to realize the quick connection between the poles of two different single batteries of the battery pack; the voltage sampling cable assembly is used for electrically connecting the conductive terminals and an external voltage sampling device so as to acquire the voltage of the single battery or the battery pack, and has simple assembly process, improved output efficiency and reduced manufacturing cost of the battery pack.
Description
Technical Field
The invention relates to the technical field of battery packs, in particular to an electric connecting device.
Background
With the requirement of low-carbon protection of modern society, the power battery has more and more extensive application. The most remarkable characteristic of the battery PACK is modular assembly, namely, a plurality of single batteries are assembled into a battery PACK, and then the plurality of battery PACKs are assembled into the PACK in series/parallel. With the rapid development of battery pack applications, the requirement for voltage sampling is becoming more and more strict, even the voltage or temperature sampling of each single battery is required, and the manufacturing process cost control requirement is becoming more and more strict, so that the manufacturing requirement of reliability and simple structure also becomes one of the most important parts in product design.
The design of the existing wiring harness isolation plate is that a voltage sampling line and a temperature sampling line are respectively welded with or in threaded connection with a pole of a battery top cover, the complex processes not only increase the manufacturing cost of the battery pack, but also have high requirements on the surface state of materials, and bring some challenges to the difficulty of process quality control.
Disclosure of Invention
In view of the problems of the background art, it is an object of the present invention to provide an electrical connection device that enables quick connection between battery packs, simplifies an assembly process of the battery packs, improves yield efficiency, and reduces manufacturing costs of the battery packs.
In order to achieve the above object, the present invention provides an electrical connection device including an electrical connection unit. The electrical connection unit includes: insulating casing, conductive terminal and voltage sampling cable subassembly. The conductive terminal is arranged in the insulating shell and is used for being electrically connected with a pole of the battery top cover; one end of the voltage sampling cable assembly is used for connecting to an external voltage sampling device, and the other end of the voltage sampling cable assembly penetrates into the insulating shell and is electrically connected to the conductive terminal.
The invention has the following beneficial effects:
in the electrical connection device according to the present invention, the insulating housing is used to fix the voltage sampling cable assembly to avoid the influence of sampling accuracy due to poor contact; the conductive terminal is used for electrically connecting the poles of the battery top cover so as to realize the quick connection between the poles of two different single batteries of the battery pack; the voltage sampling cable assembly is used for electrically connecting the conductive terminals and an external voltage sampling device so as to acquire the voltage of the single battery or the battery pack, and has simple assembly process, improved output efficiency and reduced manufacturing cost of the battery pack.
Drawings
FIG. 1 is a perspective view of a connection of two electrical connection units of an electrical connection device according to the present invention without a voltage sampling cable assembly and a temperature sampling cable assembly;
FIG. 2 is a partial perspective view of FIG. 1, with the internal structure of each electrical connection unit shown for clarity;
FIG. 3 is a perspective view of two electrical connection unit connections with a voltage sampling cable assembly and a temperature sampling cable assembly of the electrical connection device according to the present invention;
FIG. 4 is a partial perspective view of FIG. 3 showing the internal structure of each electrical connection unit for clarity;
FIG. 5 is a bottom view of FIG. 1;
FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a bottom view of FIG. 4;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;
FIG. 9 is another variation of FIG. 8;
fig. 10 is a schematic connection view of a battery module using the electrical connection device, in which the number of electrical connection units of the electrical connection device is two;
fig. 11 is a schematic connection diagram of a battery module using the electrical connection device, in which one electrical connection unit of the electrical connection device is provided.
Wherein the reference numerals are as follows:
1 electric connection unit 122 voltage sampling side electric connection part
11 insulating housing 123 conductive extension
111 accommodating hole 13 voltage sampling cable assembly
112 conductive connector of buckle 131
113 positioning groove 132 voltage sampling cable
114 punch 14 temperature sampling cable assembly
115 fixed part 141 temperature sampling probe
12 conductive terminal 142 temperature sampling cable
121 utmost point post side electric connection portion 2 electric conduction cable
1211 enclosure part
Detailed Description
The electrical connection device according to the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 11, the electrical connection device according to the present invention includes an electrical connection unit 1. The electrical connection unit 1 includes: an insulating housing 11, a conductive terminal 12, and a voltage sampling cable assembly 13. The conductive terminal 12 is disposed in the insulating housing 11 for electrical connection to a post (not shown) of the battery top cover; the voltage sampling cable assembly 13 has one end for connection to an external voltage sampling device (not shown) and the other end penetrating the insulating housing 11 and electrically connected to the conductive terminal 12.
In the electrical connection device according to the present invention, the insulating housing 11 is used to fix the voltage sampling cable assembly 13 to avoid the influence of sampling accuracy due to poor contact; the conductive terminal 12 is used for electrically connecting the poles of the battery top cover so as to realize the quick connection between two different single battery poles of the battery pack; the voltage sampling cable assembly 13 is used for electrically connecting the conductive terminal 12 and an external voltage sampling device to acquire the voltage of the single battery or the battery pack, and has a simple assembly process, improved output efficiency and reduced manufacturing cost of the battery pack.
In an embodiment, referring to fig. 1 and 6, the insulating case 11 may have: a receiving hole 111 extending from the outside of the insulating housing 11 to the inside of the insulating housing 11; one end of the voltage sampling cable assembly 13 is inserted into the insulating housing 11 through the receiving hole 111 of the insulating housing 11 and electrically connected to the conductive terminal 12. Further, the insulating housing 11 is made of an elastic material, and the voltage sampling cable assembly 13 can be fixed on the insulating housing 11 through the receiving hole 111 on the insulating housing 11, so as to avoid the influence of poor contact on the sampling precision. Of course, the material of the insulating housing 11 is not limited to this, and other types of materials may be used as needed.
In an embodiment, referring to fig. 1 to 9, the insulating housing 11 may further have: and a catch 112 for catching in a catch hole of an upper insulator (not shown) of the top cap of the battery to achieve a fixed connection of the electrical connection device with the upper insulator of the top cap of the battery through the insulating housing 11.
In an embodiment, referring to fig. 1 to 5 and 7, the insulating housing 11 may further include: and a positioning groove 113 for receiving and engaging the positioning protrusion of the upper insulator of the top cap of the battery.
In one embodiment, referring to fig. 6 and 8, the conductive terminal 12 has: the pole side electric connection part 121 is used for being electrically connected with a pole of the battery top cover; and a voltage sampling side electrical connection portion 122 for electrical connection with one end of the voltage sampling cable assembly 13. Further, the pole side electrical connection portion 121 has: the receiving portion 1211 is configured to contact the terminal of the battery top cover so that the conductive terminal 12 is electrically connected to the terminal of the battery top cover.
In one embodiment, the receiving portion 1211 of the terminal post side conductive connection portion 121 of the conductive terminal 12 is inserted into the terminal post of the battery top cover so that the conductive terminal 12 is electrically connected to the terminal post of the battery top cover. The insertion connection mode is adopted to electrically connect the conductive terminal 12 and the pole of the battery top cover, the operation is simple, the quick and reliable connection can be realized, the connection mode is one of the preferable connection modes, and certainly, the connection mode is not limited, and other connection modes can also be adopted.
In an embodiment, referring to fig. 9, the conductive terminal 12 may further include: and a conductive extension portion 123 connecting the post side conductive electrical connection portion 121 and the voltage sampling side conductive electrical connection portion 122. Further, the cross-sectional shapes formed by the connection pole side electrical connection portion 121, the conductive extension portion 123, and the voltage sampling side electrical connection portion 122 are stepped, and the cross-sectional shapes formed by the connection pole side electrical connection portion 121, the conductive extension portion 123, and the voltage sampling side electrical connection portion 122 are different according to the structure of the conductive extension portion 123.
In an embodiment, referring to fig. 8 and 9, the voltage sampling cable assembly 13 may include: a conductive connecting member 131 electrically connected to the conductive terminal 12; and a voltage sampling cable 132 having one end connected to an external voltage sampling device and the other end electrically connected to the conductive connector 131.
In one embodiment, the conductive connecting member 131 of the voltage sampling cable assembly 13 is electrically connected to the conductive terminal 12 by plugging. The plug-in connection mode is simple to operate, can realize quick and reliable connection, is one of the preferable connection modes of the invention, and can adopt other connection modes without limitation.
In an embodiment, referring to fig. 3, 4 and 7 to 9, the electrical connection device may further include: the temperature sampling cable assembly 14. The temperature sampling cable assembly 14 has a temperature sampling probe head 141 and a temperature sampling cable 142. The temperature sampling probe 141 is arranged in the insulating shell 11 and can acquire the temperature of the pole of the battery top cover; the temperature sampling cable 142 has one end extended into the insulating housing 11 and electrically connected to the temperature sampling probe 141, and the other end connected to an external temperature sampling device (not shown).
In one embodiment, referring to fig. 3, 4 and 7-9, the voltage sampling cable assembly 13 and the temperature sampling cable assembly 14 of the electrical connection device are electrically connected to the same pole of the battery top cover.
In one embodiment, the voltage sampling cable assembly 13 and the temperature sampling cable assembly 14 of the electrical connection device are electrically connected to two different poles of the battery top cover, respectively.
In one embodiment, the temperature sampling probe 141 may be a contact sensor for directly contacting the terminal of the battery top cover to collect the temperature of the terminal of the battery top cover.
In one embodiment, the temperature sampling probe 141 may be an infrared sensor, and the infrared sensor may not directly contact the terminal of the battery top cover when acquiring the temperature of the terminal of the battery top cover.
The contact sensor and the infrared sensor used in the temperature sampling probe 141 are preferred sensors in the present invention, but the present invention is not limited thereto, and the temperature sampling probe 141 may also be other types of sensors.
In one embodiment, the insulating housing 11 may have a through hole 114 and a fixing portion 115. The through hole 114 is penetrated by the temperature sampling cable 142 and the temperature sampling probe head 141 to be positioned in the insulating housing 11; the fixing portion 115 is disposed in the insulating housing 11 for fixing the temperature sampling probe 141 of the temperature sampling cable assembly 14. In the present invention, the insulating housing 11 is preferably made of an elastic material, so that the insulating housing 11 can fix the temperature sampling cable 142 on the insulating housing 11 through the through hole 114 on the insulating housing 11, thereby avoiding the influence of poor contact on the sampling precision. The fixing portion 115 of the insulating housing 11 is used for fixing the temperature sampling probe 141 of the temperature sampling cable assembly 14, so that the influence of the sampling precision caused by the shaking of the temperature sampling probe 141 can be avoided.
In an embodiment, the fixing portion 115 is integrally molded with the insulating housing 11, but not limited thereto, the fixing portion 115 of the insulating housing 11 may be formed separately from the insulating housing 11 and then assembled.
In an embodiment, referring to fig. 11, the electrical connection unit 1 is one, and the electrical connection device may further include: one end of the conductive cable 2 extends into the insulating housing 11 of the electrical connection unit 1 and is electrically connected to the conductive terminal 12 of the electrical connection unit 1, and the other end is used for electrically connecting with an external electrical device (not shown) or with a pole of a battery top cover of another single battery of the battery module. When the other end of the conductive cable 2 is used for electrically connecting with a terminal of a battery top cover of another single battery of the battery module (thereby realizing series connection and/or parallel connection between the single batteries of the battery module), a welding manner may be generally adopted, but not limited thereto; when the other end of the conductive cable 2 is used to electrically connect with an external electrical device, an appropriate electrical connection manner may be selected according to different external electrical devices. Further, the external electrical device may be a charging device that charges the battery module or an electric device that is powered by the battery module.
In an embodiment, referring to fig. 10, the number of the electrical connection units 1 is two, and the electrical connection device may further include: one end of the conductive cable 2 extends into the insulating housing 11 of one electrical connection unit 1 and is electrically connected to the conductive terminal 12 of the one electrical connection unit 1, and the other end extends into the insulating housing 11 of the other electrical connection unit 1 and is electrically connected to the conductive terminal 12 of the other electrical connection unit 1, so as to electrically connect the corresponding poles of the two single batteries of the battery module together, thereby realizing the series connection and/or the parallel connection between the single batteries of the battery module.
Claims (10)
1. An electrical connection device, comprising:
electrical connection unit (1) comprising:
an insulating housing (11);
the conductive terminal (12) is arranged in the insulating shell (11) and is used for being electrically connected with a pole of the battery top cover; and
and one end of the voltage sampling cable assembly (13) is used for connecting to an external voltage sampling device, and the other end of the voltage sampling cable assembly penetrates into the insulating shell (11) and is electrically connected to the conductive terminal (12).
2. The electrical connection device according to claim 1, characterized in that the conductive terminal (12) has:
the pole side conductive and electric connection part (121) is used for being electrically connected with a pole of the battery top cover; and
and a voltage sampling side conductive connection portion (122) for electrically connecting with the one end of the voltage sampling cable assembly (13).
3. The electrical connection device according to claim 2, wherein the pole side electrical connection portion (121) has:
and an accommodating part (1211) which is used for contacting the pole of the battery top cover so as to enable the conductive terminal (12) to be electrically connected with the pole of the battery top cover.
4. The electrical connection device according to claim 3, wherein the receiving portion (1211) of the pole side electrical connection portion (121) of the conductive terminal (12) is inserted into the pole of the battery top cover to electrically connect the conductive terminal (12) to the pole of the battery top cover.
5. The electrical connection device according to claim 1, characterized in that the voltage sampling cable assembly (13) comprises:
a conductive connector (131) electrically connected to the conductive terminal (12); and
and a voltage sampling cable (132) having one end connected to an external voltage sampling device and the other end electrically connected to the conductive connector (131).
6. The electrical connection device according to claim 5, wherein the conductive connector (131) of the voltage sampling cable assembly (13) is electrically connected to the conductive terminal (12) by plugging.
7. The electrical connection device as claimed in any one of claims 1 to 6, further comprising:
a temperature sampling cable assembly (14) having:
the temperature sampling probe (141) is arranged in the insulating shell (11) and can acquire the temperature of the pole of the battery top cover; and
and one end of the temperature sampling cable (142) extends into the insulating shell (11) and is electrically connected with the temperature sampling probe head (141), and the other end of the temperature sampling cable is connected with an external temperature sampling device.
8. The electrical connection device according to claim 7, characterized in that the voltage sampling cable assembly (13) and the temperature sampling cable assembly (14) of the electrical connection device are electrically connected to the same pole of the battery top cover.
9. The electrical connection device of claim 1,
the number of the electric connection units (1) is one;
the electrical connection device further comprises:
one end of the conductive cable (2) extends into the insulating shell (11) of the electric connection unit (1) and is electrically connected with the conductive terminal (12) of the electric connection unit (1), and the other end of the conductive cable is electrically connected with an external electric device or a pole of a battery top cover of another single battery of the battery module.
10. The electrical connection device of claim 1,
two electric connection units (1) are provided;
the electrical connection device further comprises:
one end of the conductive cable (2) extends into the insulating shell (11) of one electric connection unit (1) and is electrically connected with the conductive terminal (12) of the one electric connection unit (1), and the other end of the conductive cable extends into the insulating shell (11) of the other electric connection unit (1) and is electrically connected with the conductive terminal (12) of the other electric connection unit (1), so that the corresponding poles of the two single batteries of the battery module are electrically connected together, and the series connection and/or the parallel connection between the single batteries of the battery module are realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510860286.5A CN106816571B (en) | 2015-12-01 | 2015-12-01 | Electrical connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510860286.5A CN106816571B (en) | 2015-12-01 | 2015-12-01 | Electrical connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106816571A CN106816571A (en) | 2017-06-09 |
| CN106816571B true CN106816571B (en) | 2022-11-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510860286.5A Active CN106816571B (en) | 2015-12-01 | 2015-12-01 | Electrical connection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106816571B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018114764B4 (en) * | 2018-06-20 | 2020-02-20 | Lisa Dräxlmaier GmbH | PLUG-IN MODULE CONNECTOR, CONNECTING SYSTEM AND METHOD FOR ELECTRICALLY CONDUCTING CONNECTING AT LEAST TWO BATTERY MODULES |
| CN109244345B (en) * | 2018-12-14 | 2019-05-07 | 湖南丰日电源电气股份有限公司 | Connector and its manufacture craft with sampling line and temperature sensor fixed contact |
| CN112310566B (en) * | 2020-01-13 | 2022-06-07 | 宁德时代新能源科技股份有限公司 | Sampling component, battery module, battery pack and device |
| WO2023184540A1 (en) * | 2022-04-02 | 2023-10-05 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electric device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102414904A (en) * | 2009-05-04 | 2012-04-11 | 株式会社Lg化学 | Voltage sensing member and battery module comprising same |
| CN102544616A (en) * | 2010-12-08 | 2012-07-04 | 比亚迪股份有限公司 | Battery module |
| CN102956934A (en) * | 2011-08-17 | 2013-03-06 | 比亚迪股份有限公司 | Battery module group |
| CN103490024A (en) * | 2013-09-17 | 2014-01-01 | 东风汽车公司 | Integrated type power battery assembly |
| CN204809300U (en) * | 2015-07-09 | 2015-11-25 | 宁德时代新能源科技有限公司 | Battery is subassembly for module |
| CN205211830U (en) * | 2015-12-01 | 2016-05-04 | 宁德时代新能源科技股份有限公司 | Electrical connection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101152635B1 (en) * | 2010-04-08 | 2012-06-04 | 주식회사 엘지화학 | Voltage Sensing Assembly for Battery Module and Battery Module Employed with the Same |
-
2015
- 2015-12-01 CN CN201510860286.5A patent/CN106816571B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102414904A (en) * | 2009-05-04 | 2012-04-11 | 株式会社Lg化学 | Voltage sensing member and battery module comprising same |
| CN102544616A (en) * | 2010-12-08 | 2012-07-04 | 比亚迪股份有限公司 | Battery module |
| CN102956934A (en) * | 2011-08-17 | 2013-03-06 | 比亚迪股份有限公司 | Battery module group |
| CN103490024A (en) * | 2013-09-17 | 2014-01-01 | 东风汽车公司 | Integrated type power battery assembly |
| CN204809300U (en) * | 2015-07-09 | 2015-11-25 | 宁德时代新能源科技有限公司 | Battery is subassembly for module |
| CN205211830U (en) * | 2015-12-01 | 2016-05-04 | 宁德时代新能源科技股份有限公司 | Electrical connection device |
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| Publication number | Publication date |
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| CN106816571A (en) | 2017-06-09 |
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