CN113948827B - Battery, battery module and battery pack - Google Patents
Battery, battery module and battery pack Download PDFInfo
- Publication number
- CN113948827B CN113948827B CN202010615835.3A CN202010615835A CN113948827B CN 113948827 B CN113948827 B CN 113948827B CN 202010615835 A CN202010615835 A CN 202010615835A CN 113948827 B CN113948827 B CN 113948827B
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- Prior art keywords
- battery
- electrode terminal
- conductive member
- guide seat
- conductive
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
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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
Abstract
The application discloses a battery, a battery module and a battery pack, wherein the battery comprises a battery body, a first electrode terminal and a second electrode terminal; either one of the first electrode terminal and the second electrode terminal is a positive electrode terminal, and the other is a negative electrode terminal; the first electrode terminal comprises a guide seat and a conductive piece, the guide seat is fixedly connected with the battery body, and the guide seat is provided with a perforation; the conductive piece is positioned at one end, close to the battery body, in the through hole and is connected with the battery body; the second electrode terminal is connected to the battery body. In this application, the second electrode terminal of one cell is fixed in the penetration hole of the other cell and is in contact with the conductive member in the penetration hole. Therefore, the two batteries can be connected in series quickly, the assembly speed can be improved, the assembly difficulty is reduced, and the battery is easy to detach and replace.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery, a battery module and a battery pack.
Background
The battery pack is generally formed by connecting a plurality of batteries in series to form a battery module, and the battery module is enclosed by a circuit, a shell and the like. In the current battery pack, the batteries are connected in series by arranging a connecting sheet, one end of the connecting sheet is welded with the positive electrode of one battery, and the other end of the connecting sheet is welded with the negative electrode of the other battery.
However, the connecting sheet welding mode is adopted, so that the assembly speed is low, the difficulty is high, and the disassembly and replacement are difficult.
Disclosure of Invention
An object of the application is to provide a battery, battery module and battery package, need not to set up the connection piece, and adjacent battery is direct to peg graft, can improve the equipment speed, reduces the equipment degree of difficulty to easily dismantle and replace.
A first aspect of the present application provides a battery including a battery body, a first electrode terminal, and a second electrode terminal; either one of the first electrode terminal and the second electrode terminal is a positive electrode terminal, and the other is a negative electrode terminal; the first electrode terminal comprises a guide seat and a conductive piece, the guide seat is fixedly connected with the battery body, and the guide seat is provided with a perforation; the conductive piece is positioned at one end, close to the battery body, in the through hole and is connected with the battery body; the second electrode terminal is connected to the battery body.
The battery as described above, wherein the battery body has a top surface and oppositely disposed first and second side surfaces, the top surface being located between the first and second side surfaces; the first side surface is provided with an accommodating groove, and the first electrode terminal is arranged in the accommodating groove; the second electrode terminal is connected to the second side surface.
The battery as described above, wherein the guide holder has a first end surface disposed away from a side surface of the accommodating groove, the first end surface of the guide holder is flush with the first side surface, and the side surface of the accommodating groove and the second side surface are disposed opposite to each other.
The battery as described above, wherein the receiving recess extends to penetrate the top surface of the battery body; the guide seat is provided with a second end face which is far away from the bottom face of the accommodating groove, the second end face of the guide seat is flush with the top face of the battery body, and the bottom face of the accommodating groove and the top face of the battery body are oppositely arranged.
The battery as described above, wherein the first electrode terminal includes one of the guide holders and at least two of the conductive members, and the at least two of the conductive members include a first conductive member and a second conductive member; the guide seat is provided with at least two perforations, and the at least two perforations comprise a first perforation and a second perforation; the first conductive member is positioned in the first through hole, and the second conductive member is positioned in the second through hole.
The battery as described above, wherein the first electrode terminal includes at least two of the guide holders and at least two of the conductive members; the perforations include at least a first perforation and a second perforation; the at least two guide seats comprise a first guide seat and a second guide seat, the first guide seat is provided with the first perforation, and the second guide seat is provided with the second perforation; the at least two conductive members comprise a first conductive member and a second conductive member; the first conductive member is positioned in the first through hole, and the second conductive member is positioned in the second through hole.
The battery as described above, wherein the conductive member is a conductive elastic sheet.
The battery is characterized in that the guide seat is made of an insulating material.
The battery is characterized in that the guide seat is made of epoxy resin.
A second aspect of the present application provides a battery module comprising at least two batteries connected in series, the batteries being the batteries according to any one of the first aspects of the present application; the at least two batteries in series include a first battery and a second battery; the second electrode terminal of the second battery is fixed in the through hole of the first battery and contacts the conductive member of the first battery so that the first battery and the second battery are connected in series.
The battery module as described above, wherein the battery body has a top surface and first and second side surfaces disposed opposite to each other, the top surface being located between the first and second side surfaces; the first side surface is provided with an accommodating groove, and the first electrode terminal is arranged in the accommodating groove; the second electrode terminal is connected with the second side surface; the second side of the second battery and the first side of the first battery are fixed by adhesive.
A third aspect of the present application provides a battery pack comprising a battery according to any one of the first aspects of the present application, or a battery module according to any one of the second aspects of the present application.
In this application, the second electrode terminal of one cell is fixed in the penetration hole of the other cell and is in contact with the conductive member in the penetration hole. Therefore, the two batteries can be connected in series quickly, the assembly speed can be improved, the assembly difficulty is reduced, and the battery is easy to detach and replace. The guide seat can guide the second electrode terminal to smoothly contact with the conductive piece on one hand and can protect the second electrode terminal and the conductive piece on the other hand.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are required to be used in the embodiments will be briefly described below.
Fig. 1 is a schematic view of a battery provided in an embodiment of the present application;
FIG. 2 is a side view of a battery provided in an embodiment of the present application;
fig. 3 is a front view of a battery body of the battery provided in the embodiment of the present application;
fig. 4 is an isometric view of a guide holder for a battery provided in an embodiment of the present application;
fig. 5 is an isometric view of a guide holder for a battery provided in an embodiment of the present application;
fig. 6 is a schematic view of a battery module provided in an embodiment of the present application.
Reference numerals illustrate:
100-battery, 110-battery body, 111-second side, 112-first side, 113-top, 1121-receiving recess, 1122-side of receiving recess, 1123-bottom of receiving recess, 120-second electrode terminal, 130-first electrode terminal, 131-guide holder, 1311-perforation, 1132-first end, 1133-second end, 132-conductive member; 200-battery module, 210-first battery, 220-second battery.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
First embodiment
Referring to fig. 1 and 2, a first embodiment of the present application provides a battery 100 including a battery body 110, a first electrode terminal 130, and a second electrode terminal 120. Either one of the first electrode terminal 130 and the second electrode terminal 120 is a positive electrode terminal, and the other is a negative electrode terminal. The battery body 110 includes a case and a electrode core located in the case, and the first electrode terminal 130 and the second electrode terminal 120 are both electrically connected to the electrode core, for example, the first electrode terminal 130 is a positive electrode terminal electrically connected to a positive tab of the electrode core; the second electrode terminal 120 is a negative electrode terminal, which is electrically connected to the negative electrode tab of the electrode core. Alternatively, the first electrode terminal 130 is a negative electrode terminal electrically connected to the negative electrode tab of the electrode core; the second electrode terminal 120 is a positive electrode terminal, and is electrically connected to a positive tab of the electrode core.
Wherein the second electrode terminal 120 is connected to the battery body 110. The first electrode terminal 130 includes a guide holder 131 and a conductive member 132, the guide holder 131 is fixedly connected with the battery body 110, and the guide holder 131 is provided with a through hole 1311; the conductive member 132 is located at one end of the through hole 1311 near the battery body 110 and is connected to the battery body 110.
In actual use, a plurality of batteries are generally required for one battery module, and then the plurality of batteries are sequentially connected in series, and the second electrode terminal 120 of one of the two batteries connected in series is fixed in the penetration hole 1311 of the other battery and is in contact with the conductive member 132 in the penetration hole 1311. Therefore, a plurality of batteries can be connected in series quickly, the assembly speed can be improved, the assembly difficulty is reduced, and the batteries are easy to detach and replace. The guide holder 131 serves to guide the second electrode terminal 120 to smoothly contact the conductive member 132 on the one hand, and also to protect the second electrode terminal 120 and the conductive member 132 on the other hand. The second electrode terminal 120 may be fixed in the through hole 1311 by a screw connection, an interference fit, a magnetic attraction, or the like, without limitation.
If the first electrode terminal 130 is a positive electrode terminal, the second electrode terminal 120 is a negative electrode terminal; conversely, if the first electrode terminal 130 is a negative electrode terminal, the second electrode terminal 120 is a positive electrode terminal. Also, it will be appreciated by those skilled in the art that in order to allow the second electrode terminal 120 to be smoothly inserted into the through hole 1311 and to be in contact with the conductive member 132, the length of the second electrode terminal 120 is slightly greater than, equal to, or slightly less than the depth of the through hole 1311. Of course, in the case where the length of the second electrode terminal 120 is slightly smaller than the depth of the through hole 1311, the thickness of the conductive member 132 and the length of the second electrode terminal 120 should be added to be equal to or slightly larger than the depth of the through hole 1311. It is thereby ensured that the second electrode terminal 120 of one of the two batteries connected in series can be smoothly inserted into the penetration hole 1311 of the other battery and be in contact with the conductive member 132.
In one case, the shape of the cross section of the penetration hole of the first electrode terminal 130 is identical to the shape of the cross section of the second electrode terminal 120.
Further, referring to fig. 3, the battery body 110 has a top surface 113 and a first side surface 112 and a second side surface 111 disposed opposite to each other, and the top surface is located between the first side surface 112 and the second side surface 111. The first side surface 112 is provided with a containing groove 1121, and the first electrode terminal 130 is arranged in the containing groove 1121; the second electrode terminal 120 is connected to the second side 111. The second electrode terminal 120 and the second side 111 are connected by providing the opposite first and second sides 112 and 111 and disposing the first electrode terminal 130 in the receiving recess 1121 of the first side 112. When two batteries are connected in series, the gap between the first side surface 112 and the second side surface 111 is small or even disappears, so that the first side surface 112 and the second side surface 111 can be in surface-to-surface contact, and the volume of the battery module or the battery pack after the series connection is reduced.
In particular, referring to fig. 1, 2 and 3, the guide holder 131 has a first end surface 1132 disposed away from the side 1122 of the receiving recess, the first end surface 1132 of the guide holder being flush with the first side 112, wherein the side 1122 of the receiving recess is disposed opposite the second side 111. Thereby preventing one end of the guide holder 131 away from the side surface of the receiving groove 1121 from protruding outside the receiving groove 1121, and increasing the structural compactness of the battery. Alternatively, the side 1122 of the receiving groove is parallel to the second side 111 for convenience of processing and to make the battery structure regular.
The receiving groove 1121 extends to penetrate the top surface 113 of the battery body 110; the guide holder 131 has a second end surface 1133 disposed away from the bottom surface 1123 of the receiving groove, and the second end surface 1133 of the guide holder 131 is flush with the top surface 113 of the battery body, wherein the bottom surface 1123 of the receiving groove and the top surface 113 of the battery body 110 are disposed opposite to each other. Thereby preventing one end of the guide holder 131 away from the bottom surface of the receiving recess 1121 from protruding outside the receiving recess 1121, further increasing the compactness of the battery.
In addition, the first end surface 1132 of the guide holder 131 is flush with the first side surface 112 of the battery body, the second end surface 1133 of the guide holder 131 is flush with the top surface 113 of the battery body, and the space of the accommodating groove 1121 can be utilized to the greatest extent, so that more parts of the second electrode terminal 120 are located in the through hole 1311 of the guide holder 131, and the second electrode terminal 120 is better protected.
It will be appreciated by those skilled in the art that the length of the second electrode terminal 120 should be greater than or equal to the depth of the through hole 1311 so as to ensure that the second electrode terminal 120 contacts the conductive member 132 when secured within the through hole 1311. It has been mentioned above that the guide holder 131 cannot protrude beyond the accommodation groove 1121. Alternatively, in order to avoid the second electrode terminal 120 from being too long, the second electrode terminal 120 is exposed outside the guide holder 131, so that the gap between the two batteries is excessively large and the exposed portion of the second electrode terminal 120 is not protected. Accordingly, the length of the second electrode terminal 120 may be equal to the depth of the through hole 1311, or slightly less than the depth of the through hole 1311, and the difference thereof may be less than the length of the conductive member 132.
It will also be understood by those skilled in the art that the number of the second electrode terminals 120 may be two or more, and then the number of the conductive members 132 may be two or more correspondingly, and the number of the second electrode terminals 120 and the number of the conductive members 132 may be equal. When two batteries are connected in series, the second electrode terminal 120 of one battery and the conductive member 132 of the other battery are connected in one-to-one correspondence, thereby connecting the two batteries in series.
The description will be made of the holder 131 based on the case where the number of the second electrode terminals 120 and the conductive members 132 is at least two:
referring to fig. 4, in one case, the guide holder 131 may be an integral part, and the guide holder 131 of the integral part is provided with a number of through holes 1311 equal to the number of conductive members 132, where each conductive member 132 corresponds to one through hole 1311. Specifically, that is, the first electrode terminal 130 includes at least two conductive members 132, and at least two conductive members 132 include a first conductive member and a second conductive member. The guide seat 131 is provided with at least two through holes 1311, and the at least two through holes 1311 comprise a first through hole and a second through hole; the first conductive member is located at an end of the first through hole near the battery body 110, and the second conductive member is located at an end of the second through hole near the battery body 110. The guide seat 131 is an integral part, and a plurality of through holes 1311 are formed in the guide seat 131 at a time, so that the production beat can be accelerated, and the production time can be saved.
Referring to fig. 5, in another case, a plurality of guide holders 131 may be provided, each guide holder 131 is provided with a through hole 1311, and the number of guide holders 131 is equal to the number of conductive members 132. Specifically, the first electrode terminal 130 includes at least two guide holders 131 and at least two conductive members 132; the perforations 1311 include at least a first perforation and a second perforation; the at least two guide holders 131 include a first guide holder and a second guide holder, the first guide holder is provided with the first perforation, and the second guide holder is provided with the second perforation; at least two of the conductive members 132 include a first conductive member and a second conductive member; the first conductive member is located at an end of the first through hole near the battery body 110, and the second conductive member is located at an end of the second through hole near the battery body 110. According to the quantity of the conductive pieces 132, the quantity of the guide holders 131 is set, and one guide holder 131 is correspondingly set for one conductive piece 132, so that when the conductive piece 132 is problematic, the guide holders 131 corresponding to the problematic conductive piece 132 can be quickly detached, and the quick maintenance can be facilitated. In addition, only one through hole 1311 is formed on each guide seat 131, so that the processing precision requirement can be correspondingly reduced, and the cost can be saved.
It will be appreciated that, when the plurality of guide holders 131 are provided, referring to the direction in fig. 1, the upper end surface of the guide holder 131 located at the uppermost position is flush with the top surface of the battery body 110, and the left end surface of each guide holder 131 is flush with the first side surface 112.
Optionally, the guide seat 131 is made of an insulating material. Specifically, the guide seat 131 is made of epoxy resin. The guide holder 131 is made of insulating materials, so that the influence of the guide holder 131 on the battery operation can be avoided.
Second embodiment
Referring to fig. 6, a second embodiment of the present application provides a battery module 200, which includes at least two batteries connected in series, wherein the batteries are the batteries in the first embodiment of the present application; the at least two batteries in series include a first battery 210 and a second battery 220. The second electrode terminal 120 of the second battery 220 is fixed in the penetration hole 1311 of the first battery 210 and contacts the conductive member 132 of the first battery 210 so that the first battery 210 and the second battery 220 are connected in series.
In the above battery module, the second electrode terminal 120 of the second battery 220 is fixed in the through hole 1311 of the first battery 210 and contacts the conductive member 132 of the first battery 210, so that the first battery 210 and the second battery 220 can be quickly connected in series, the assembly speed is high, the difficulty is low, and the disassembly and replacement are easy.
Optionally, the conductive member 132 of the first battery 210 is a conductive elastic sheet, and the second electrode terminal 120 of the second battery 220 is fixed in the through hole 1311 of the first battery 210 and abuts against the conductive elastic sheet of the first battery 210. The conductive member 132 is formed as a conductive elastic sheet, which facilitates the connection of the second electrode terminal 120 and the conductive member 132, while also ensuring the reliability of the serial connection of the first battery 210 and the second battery 220.
Optionally, the second side 111 of the second battery 220 and the first side 112 of the first battery 210 are fixed by adhesive. The first and second batteries 210 and 220 are adhered by the adhesive, so that the firmness and reliability of the battery module can be increased.
It should be understood by those skilled in the art that the above-mentioned battery module takes the first battery 210 and the second battery 220 as an example, and in fact, the battery module may further include a third battery, a fourth battery, a fifth battery, and so on, which will not be described in detail.
In addition, the embodiment of the application also provides a battery pack, which comprises the battery in the first embodiment of the application or can comprise the battery module in the second embodiment of the application.
The foregoing has outlined rather broadly the more detailed description of embodiments of the present application, wherein specific examples are provided herein to illustrate the principles and embodiments of the present application, and wherein the above examples are provided to assist in the understanding of the methods and concepts of the present application.
Claims (9)
1. A battery, characterized by comprising a battery body, a first electrode terminal and a second electrode terminal; either one of the first electrode terminal and the second electrode terminal is a positive electrode terminal, and the other is a negative electrode terminal;
the first electrode terminal comprises a guide seat and a conductive piece, the guide seat is fixedly connected with the battery body, and the guide seat is provided with a perforation; the conductive piece is positioned at one end, close to the battery body, in the through hole and is connected with the battery body;
the second electrode terminal is connected with the battery body;
the battery body is provided with a top surface and a first side surface and a second side surface which are oppositely arranged, and the top surface is positioned between the first side surface and the second side surface;
the first side surface is provided with an accommodating groove, and the first electrode terminal is arranged in the accommodating groove; the second electrode terminal is connected with the second side surface; the guide seat is provided with a first end face which is far away from the side face of the accommodating groove, the first end face of the guide seat is flush with the first side face, and the side face of the accommodating groove and the second side face are arranged oppositely; the accommodating groove extends to penetrate through the top surface of the battery body; the guide seat is provided with a second end face which is far away from the bottom face of the accommodating groove, the second end face of the guide seat is flush with the top face of the battery body, and the bottom face of the accommodating groove and the top face of the battery body are arranged oppositely.
2. The battery of claim 1, wherein the first electrode terminal comprises one of the guide holders and at least two of the conductive members, the at least two conductive members comprising a first conductive member and a second conductive member;
the guide seat is provided with at least two perforations, and the at least two perforations comprise a first perforation and a second perforation; the first conductive member is positioned in the first through hole, and the second conductive member is positioned in the second through hole.
3. The battery of claim 1, wherein the first electrode terminal comprises at least two of the guide holders and at least two of the conductive members; the perforations include at least a first perforation and a second perforation;
the at least two guide seats comprise a first guide seat and a second guide seat, the first guide seat is provided with the first perforation, and the second guide seat is provided with the second perforation;
the at least two conductive members comprise a first conductive member and a second conductive member; the first conductive member is positioned in the first through hole, and the second conductive member is positioned in the second through hole.
4. The battery of claim 1, wherein the conductive element is a conductive dome.
5. The battery according to any one of claims 1 to 4, wherein the guide holder is made of an insulating material.
6. The battery of claim 5, wherein the guide holder is made of an epoxy material.
7. A battery module comprising at least two batteries connected in series, the batteries being the batteries according to any one of claims 1 to 6; the at least two batteries in series include a first battery and a second battery;
the second electrode terminal of the second battery is fixed in the through hole of the first battery and contacts the conductive member of the first battery so that the first battery and the second battery are connected in series.
8. The battery module of claim 7, wherein the battery body has a top surface and oppositely disposed first and second sides, the top surface being located between the first and second sides;
the first side surface is provided with an accommodating groove, and the first electrode terminal is arranged in the accommodating groove; the second electrode terminal is connected with the second side surface;
the second side of the second battery and the first side of the first battery are fixed by adhesive.
9. A battery pack comprising the battery according to any one of claims 1 to 6, or the battery module according to claim 7 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010615835.3A CN113948827B (en) | 2020-06-30 | 2020-06-30 | Battery, battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010615835.3A CN113948827B (en) | 2020-06-30 | 2020-06-30 | Battery, battery module and battery pack |
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| CN113948827A CN113948827A (en) | 2022-01-18 |
| CN113948827B true CN113948827B (en) | 2023-07-14 |
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| CN202010615835.3A Active CN113948827B (en) | 2020-06-30 | 2020-06-30 | Battery, battery module and battery pack |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107305939A (en) * | 2016-04-25 | 2017-10-31 | 松下知识产权经营株式会社 | Battery |
| CN208489261U (en) * | 2018-06-12 | 2019-02-12 | 浙江瑞通电子科技有限公司 | Battery compartment with buckle structure |
| CN110402617A (en) * | 2017-03-06 | 2019-11-01 | 三菱电机株式会社 | Control unit with press-fit structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007042529A (en) * | 2005-08-05 | 2007-02-15 | Hitachi Ltd | Connection terminal, assembly of connection terminal and attachment method of connection terminal |
| KR20110068178A (en) * | 2009-12-15 | 2011-06-22 | 삼성에스디아이 주식회사 | Secondary battery |
| KR101222309B1 (en) * | 2010-12-29 | 2013-01-15 | 로베르트 보쉬 게엠베하 | Secondary battery |
| CN103545385A (en) * | 2012-07-09 | 2014-01-29 | 苏州阿特斯阳光电力科技有限公司 | Solar cell component, solar cell piece and manufacturing method thereof |
| US20170125772A1 (en) * | 2015-10-28 | 2017-05-04 | Bosch Battery Systems GmbH | Push-On Clip |
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2020
- 2020-06-30 CN CN202010615835.3A patent/CN113948827B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107305939A (en) * | 2016-04-25 | 2017-10-31 | 松下知识产权经营株式会社 | Battery |
| CN110402617A (en) * | 2017-03-06 | 2019-11-01 | 三菱电机株式会社 | Control unit with press-fit structure |
| CN208489261U (en) * | 2018-06-12 | 2019-02-12 | 浙江瑞通电子科技有限公司 | Battery compartment with buckle structure |
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