CN211907567U - Utmost point post connection structure, battery cell and battery module - Google Patents
Utmost point post connection structure, battery cell and battery module Download PDFInfo
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- CN211907567U CN211907567U CN202020417246.XU CN202020417246U CN211907567U CN 211907567 U CN211907567 U CN 211907567U CN 202020417246 U CN202020417246 U CN 202020417246U CN 211907567 U CN211907567 U CN 211907567U
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- battery
- point post
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- 230000037431 insertion Effects 0.000 claims description 33
- 238000003780 insertion Methods 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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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Abstract
The utility model discloses a utmost point post connection structure, battery cell and battery module belongs to the battery technology field, and utmost point post connection structure includes utmost point post and utmost point ear, and the one end that utmost point post is located battery cell's casing is provided with the connecting plate of two relative settings, forms between two connecting plates and supplies utmost point ear male slot, is provided with the fixed orifices on two connecting plates relatively, corresponds the fixed orifices on the utmost point ear and is provided with and wears to establish the hole, and the riveting piece realizes the connection of utmost point ear and connecting plate through wearing to establish the hole and two fixed orificess. The utility model provides a utmost point post connection structure compares in welded connection, can avoid producing metal fillings and raise dust, has saved the connection piece, and fixes a position utmost point ear through the slot to connect through the riveting piece, not only make utmost point ear and utmost point post can the stable connection, can guarantee the utmost point ear of each battery cell moreover and the uniformity that utmost point post is connected, be favorable to subsequent battery to join in marriage group and equipment.
Description
Technical Field
The utility model relates to the technical field of batteries, especially, relate to a utmost point post connection structure, battery cell and battery module.
Background
A battery generally refers to a device that can convert chemical energy into electrical energy, having a positive electrode and a negative electrode, in a partial space of a cup, tank, or other container or composite container that holds an electrolyte solution and metal electrodes to generate an electric current.
Generally, a battery includes a casing and a battery cell enclosed in the casing, wherein the casing includes a casing and a sealing cover covering the casing, a terminal of the battery is connected to the sealing cover through a hole formed in the sealing cover, and a positive electrode tab and a negative electrode tab are respectively led out from the battery cell. At present, the connection of the tab and the pole column is mainly connected through a connecting sheet, and the connecting sheet is connected with the tab and the pole column through ultrasonic welding or laser welding or a stud connecting structure, wherein the ultrasonic welding is more.
However, the high temperature generated instantaneously by ultrasonic welding easily causes the contraction of the diaphragm paper at the tab, which causes potential safety hazard, and the product of the cold joint is not easy to be perceived, which affects the consistency of the battery and is not beneficial to the subsequent battery matching and assembling.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a utmost point post connection structure, battery cell and battery module to realize the connection of utmost point ear and utmost point post, and can improve the uniformity of battery, subsequent battery of being convenient for is joined in marriage group and equipment.
As the conception, the utility model adopts the technical proposal that:
the utility model provides a utmost point post connection structure, includes utmost point post and utmost point ear, the one end that utmost point post is located battery cell's casing is provided with the connecting plate of two relative settings, two form the confession between the connecting plate utmost point ear male slot, two be provided with the fixed orifices on the connecting plate relatively, correspond on the utmost point ear the fixed orifices is provided with wears to establish the hole, and the riveting passes through wear to establish hole and two the fixed orifices is realized utmost point ear with the connection of connecting plate.
Furthermore, an inserting groove is formed in one end, located outside the shell, of the pole, and the inserting groove is used for being connected with an external connecting sheet in an inserting mode.
Furthermore, one end of the pole column, which is positioned outside the shell, is provided with a jack communicated with the insertion groove, and the jack is used for a fastener to penetrate through so as to fix the external connecting sheet.
Furthermore, a plurality of inserting grooves are arranged, the inserting grooves are arranged side by side at intervals, and the inserting holes penetrate through each groove wall of each inserting groove in the axial direction of the inserting holes.
Furthermore, in a first direction, the cross section of the insertion groove is rectangular, and along a second direction, the length and the width of the rectangle are both gradually reduced, the first direction is the length direction of the connecting plate, the second direction is the thickness direction of the connecting plate, and the connecting plate points to one end of the pole column, which is provided with the insertion groove.
Furthermore, one end, far away from the single battery winding core, of the tab is bent to form an L-shaped structure, the L-shaped structure comprises a first folding edge and a second folding edge which are connected, and the first folding edge can be inserted into the slot.
Further, utmost point post is L shape knot structure, utmost point post is including the first portion and the second portion that are connected, first portion includes two the connecting plate, the second portion is kept away from the one end of first portion is located outside the casing.
In order to achieve the above object, the utility model also provides a single battery, including casing, lid and any scheme of the aforesaid utmost point post connection structure, the lid approximately fits the casing, utmost point post set up in the mounting hole on the lid, and utmost point post with be provided with the glass sealing layer between the inner wall of mounting hole.
Furthermore, the number of the cover bodies is two, and the two cover bodies are respectively arranged at two opposite ends of the shell.
In order to achieve the above object, the present invention also provides a battery module, including the above single battery.
The utility model has the advantages that:
the utility model provides a utmost point post connection structure, through the connecting plate that sets up two relative settings on utmost point post, form between two connecting plates and supply utmost point ear male slot, and utmost point ear and connecting plate fix through the riveting piece, compare in welded connection, can avoid producing metal fillings and raise dust, the connection piece has been saved, and fix a position the utmost point ear through the slot, and connect through the riveting piece, not only make utmost point ear and utmost point post can the stable connection, and can guarantee the utmost point ear of each battery cell and the uniformity that utmost point post is connected, be favorable to subsequent battery to join in marriage group and equipment.
Drawings
Fig. 1 is a schematic view of a partial structure of a single battery provided by the present invention;
fig. 2 is a schematic structural diagram of the pole connection structure provided by the present invention.
In the figure:
1. a housing; 2. a cover body; 3. a glass sealing layer; 4. a pole column; 401. a slot; 41. a first part; 411. inserting grooves; 412. a jack; 42. a second section; 421. a connecting plate; 4211. a fixing hole; 5. a tab; 51. and (5) perforating holes.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, the present embodiment provides a single battery, which includes a housing 1, a cover 2, and a pole connecting structure. In this embodiment, the case 1 is a cubic case with two openings at both ends of the length direction, the covers 2 are two, the two covers 2 cover the case 1, the two covers 2 are respectively disposed at both ends of the length direction of the case and are used for sealing the two openings, i.e., the two covers 2 are respectively disposed at both sides of the case 1, a roll core is disposed in the case 2, a positive tab and a negative tab are disposed on the roll core, a positive post and a negative post are disposed on the two covers 2, the positive tab is connected to the positive post, and the negative tab is connected to the negative post. Specifically, the positive pole and the negative pole are respectively arranged in the corresponding mounting holes on the cover body 2, the glass sealing layer 3 is arranged between the positive pole and the inner wall of the corresponding mounting hole, and the glass sealing layer 3 is arranged between the negative pole and the inner wall of the corresponding mounting hole.
As shown in fig. 2, the pole connection structure includes a pole 4 and a tab 5, and the pole 4 is a positive pole and the tab 5 is a positive tab. Specifically, one end of the pole 4 located in the housing 1 of the single battery is provided with two oppositely arranged connecting plates 421, an insertion slot 401 for inserting the tab 5 is formed between the two connecting plates 421, fixing holes 4211 are oppositely arranged on the two connecting plates 421, a through hole 51 is arranged at a position corresponding to the fixing hole 4211 on the tab 5, and a rivet (not shown in the figure) connects the tab 5 and the connecting plates 421 through the through hole 51 and the two opposite fixing holes 4211 corresponding to the through hole 51.
Further, in this embodiment, an insertion slot 411 is disposed at an end of the pole 4 located outside the housing 1, and the insertion slot 411 is used for inserting and connecting an external connection sheet, and is connected with the electric device through the external connection sheet. In addition, in the present embodiment, in the first direction, the cross section of the insertion slot 411 is rectangular, and along the second direction, the length and the width of the rectangle are gradually reduced, the first direction is the length direction of the connection plate 421, the second direction is the thickness direction of the connection plate 421, and the connection plate 421 points to the side of the pole 4 where the insertion slot 411 is arranged. Specifically, the first direction is the oa direction in fig. 2, and the second direction is the ob direction in fig. 2. It can be understood that, in the depth direction of the insertion slot 411, the insertion slot 411 is larger at the bottom and smaller at the top, in order to facilitate the insertion of the external connection piece into the insertion slot 411, the insertion slot 411 penetrates through one side surface of the pole 4, so that the insertion slot 411 has two openings, and the external connection piece has an insertion structure matched with the insertion slot 411, and the cross section of the insertion structure in the second direction is trapezoidal.
Further, in the present embodiment, one end of the pole 4 located outside the housing 1 is provided with a plug hole 412 communicating with the plug slot 411, and the plug hole 412 is used for a fastener to pass through to fix the external connection sheet. It will be appreciated that after the external connection tab is inserted into the insertion slot 411, the external connection tab may be further secured by a fastener passing through the insertion hole 412. Further preferably, the insertion hole 412 penetrates through two opposite groove walls of the insertion groove 411, and the fastening member may be a bolt, a rivet, or the like.
In this embodiment, a plurality of the insertion grooves 411 are provided, the plurality of insertion grooves 411 are arranged side by side at intervals, and the insertion hole 412 penetrates through each groove wall of each insertion groove 411 in the axial direction of the insertion hole 412. Thus, the external connection tab in each socket 411 may be secured by a fastener.
Further, in this embodiment, the pole 4 is an L-shaped structure, and includes a first portion 41 and a second portion 42 connected to each other, the second portion 42 includes two connection plates 421, an end of the first portion 41 away from the second portion 42 is located outside the housing 1, and the first portion 41 is provided with the insertion groove 411 and the insertion hole 412.
In addition, in this embodiment, the end of the tab 5 away from the winding core is bent to form an L-shaped structure, and the L-shaped structure includes a first folded edge and a second folded edge which are connected, and the first folded edge can be inserted into the slot 401. Therefore, when the tab 5 and the connecting plate 421 are connected by riveting, the tab 5 can be supported by the connecting plate 421 to prevent the tab 5 from falling off from the slot 401. In addition, optionally, one of the connection plates 421 is provided with a positioning protrusion protruding outward, the L-shaped structure of the tab 5 is provided with a positioning hole into which the positioning protrusion can be inserted, and the positioning protrusion is matched with the positioning hole to further position and limit the tab 5 and the connection plate 421, so that the tab 5 is prevented from shifting relative to the connection plate 421 when the connection plate 421 and the tab 5 are connected by a riveting member.
In order to improve the connection stability between the tab 5 and the connection plates 421, in this embodiment, each connection plate 421 is provided with a plurality of fixing holes 4211 along its length direction, and the fixing holes 4211 on the two connection plates 421 correspond to each other one by one, correspondingly, the tab 5 is provided with a plurality of through holes 51, and each through hole 51 corresponds to two fixing holes 4211 which are arranged oppositely. The tab 5 and the connecting plate 421 are fixedly connected by a plurality of riveting members, so that the connection strength of the tab 5 and the connecting plate 421 can be improved, and the tab 5 and the connecting plate 421 can be ensured to be kept in good contact.
In conclusion, the utmost point post connection structure that this embodiment provided, through set up two relative connecting plates 421 that set up on utmost point post 4, form between two connecting plates 421 and supply utmost point ear 5 male slot 401, and utmost point ear 5 and connecting plate 421 fix through the riveting piece, compare in welded connection, can avoid producing metal fillings and raise dust, the connection piece has been saved, and fix a position utmost point ear 5 through slot 401, and connect through the riveting piece, not only make utmost point ear 5 and utmost point post 4 can the stable connection, and can guarantee the uniformity that utmost point ear 5 and utmost point post 4 of each battery are connected, be favorable to subsequent battery to join in marriage group and equipment.
The embodiment also provides a battery module, which comprises a plurality of single batteries, wherein the single batteries are packaged by the shell frame to form the battery module.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an utmost point post connection structure, its characterized in that, includes utmost point post (4) and utmost point ear (5), utmost point post (4) one end that is located monomer battery's casing (1) is provided with two relative connecting plate (421) that set up, two form the confession between connecting plate (421) utmost point ear (5) male slot (401), two be provided with fixed orifices (4211) on connecting plate (421) relatively, correspond on utmost point ear (5) fixed orifices (4211) are provided with wear to establish hole (51), and the riveting passes through wear to establish hole (51) and two fixed orifices (4211) are realized utmost point ear (5) with the connection of connecting plate (421).
2. The pole connection structure according to claim 1, characterized in that one end of the pole (4) located outside the housing (1) is provided with an insertion groove (411), the insertion groove (411) being used for insertion connection with an external connection tab.
3. The pole connecting structure according to claim 2, characterized in that one end of the pole (4) outside the housing (1) is provided with a socket (412) communicating with the socket (411), the socket (412) being used for a fastener to pass through to fix the external connecting piece.
4. The pole connecting structure according to claim 3, wherein the inserting groove (411) is provided in plurality, the inserting grooves (411) are arranged side by side at intervals, and the inserting hole (412) penetrates through each groove wall of the inserting groove (411) in the axial direction of the inserting hole (412).
5. The pole connection structure according to claim 2, wherein the cross section of the insertion slot (411) is rectangular in a first direction, and the length and width of the rectangle are gradually reduced along a second direction, the first direction is the length direction of the connection plate (421), the second direction is the thickness direction of the connection plate (421), and the end of the pole (4) where the insertion slot (411) is arranged is directed from the connection plate (421).
6. The pole connecting structure according to claim 1, wherein one end of the tab (5) far away from the winding core of the single battery is bent to form an L-shaped structure, the L-shaped structure comprises a first folded edge and a second folded edge which are connected, and the first folded edge can be inserted into the slot (401).
7. The pole connection structure according to claim 1, characterized in that the pole (4) is an L-shaped structure, the pole (4) comprises a first portion (41) and a second portion (42) which are connected, the second portion (42) comprises two connecting plates (421), and one end of the first portion (41) away from the second portion (42) is located outside the housing (1).
8. A single battery, characterized by comprising a casing (1), a cover body (2) and the pole connecting structure according to any one of claims 1 to 7, wherein the cover body (2) covers the casing (1), the pole (4) is arranged in a mounting hole on the cover body (2), and a glass sealing layer (3) is arranged between the pole (4) and the inner wall of the mounting hole.
9. The battery cell according to claim 8, wherein the cover (2) is provided in two, and the two covers (2) are provided at opposite ends of the case (1), respectively.
10. A battery module comprising the unit battery according to claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020417246.XU CN211907567U (en) | 2020-03-27 | 2020-03-27 | Utmost point post connection structure, battery cell and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020417246.XU CN211907567U (en) | 2020-03-27 | 2020-03-27 | Utmost point post connection structure, battery cell and battery module |
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| Publication Number | Publication Date |
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| CN211907567U true CN211907567U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020417246.XU Active CN211907567U (en) | 2020-03-27 | 2020-03-27 | Utmost point post connection structure, battery cell and battery module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116097517A (en) * | 2021-07-30 | 2023-05-09 | 宁德时代新能源科技股份有限公司 | Battery, electric equipment and preparation method of battery |
-
2020
- 2020-03-27 CN CN202020417246.XU patent/CN211907567U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116097517A (en) * | 2021-07-30 | 2023-05-09 | 宁德时代新能源科技股份有限公司 | Battery, electric equipment and preparation method of battery |
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