CN218351677U - Electricity core subassembly and battery - Google Patents
Electricity core subassembly and battery Download PDFInfo
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- CN218351677U CN218351677U CN202222520239.4U CN202222520239U CN218351677U CN 218351677 U CN218351677 U CN 218351677U CN 202222520239 U CN202222520239 U CN 202222520239U CN 218351677 U CN218351677 U CN 218351677U
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- utmost point
- insulating
- point ear
- centre gripping
- electric core
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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 battery cell subassembly and battery relates to battery technical field. This electric core subassembly includes centre gripping subassembly, electric core main part and utmost point ear, and the protruding one end of locating electric core main part of utmost point ear, the bottom of utmost point ear is located to the centre gripping subassembly ring, and utmost point ear includes a plurality of utmost point ears that stack gradually the setting, and the centre gripping subassembly is used for a plurality of utmost point ears of centre gripping. The utility model provides a cell subassembly can prevent utmost point ear from inserting upside down, has higher security.
Description
Technical Field
The utility model relates to a battery technology field particularly, relates to a battery cell subassembly and battery.
Background
In the process of putting the battery core into the shell, because the lugs are soft in texture, a plurality of lugs which are laminated together are easy to be subjected to external acting force to generate bottom branching, and the lugs of the branching part are easy to fall into a winding core after being bent, so that the short circuit of the battery core is caused, and even serious safety accidents are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric core subassembly, it can prevent that utmost point ear from inserting upside down, promotes the security.
Another object of the present invention is to provide a battery, which has a higher safety.
The utility model provides a technical scheme:
the utility model provides an electric core subassembly, includes centre gripping subassembly, electric core main part and utmost point ear portion, utmost point ear portion is protruding to be located the one end of electric core main part, centre gripping subassembly ring is located the bottom of utmost point ear portion, utmost point ear portion includes a plurality of utmost point ears that stack gradually the setting, the centre gripping subassembly is used for the centre gripping a plurality of utmost point ear.
Furthermore, a stop ring wall is convexly arranged on the outer side wall of the clamping assembly and used for stopping the middle part of the tab from being bent and then being inserted into the battery cell main body.
Furthermore, the stop ring wall is convexly arranged at the bottom end of the outer side wall of the clamping assembly.
Further, the centre gripping subassembly includes two insulating holders, two insulating holder set up respectively in the bottom of the relative both sides of utmost point ear, two the both ends of insulating holder correspond the connection respectively to it is a plurality of to centre gripping jointly the utmost point ear.
Further, the width of the insulating clamp is less than the width of the pole ear.
Furthermore, two the insulating holder keeps away from separately the bottom of the lateral wall of utmost point ear portion all is equipped with the backstop boss protrudingly, the backstop boss is used for the backstop insert after buckling the middle part of utmost point ear the electricity core main part.
Furthermore, the insulating clamping pieces are rectangular, and two ends of each of the two insulating clamping pieces in the extension direction of the long edge are correspondingly connected;
the backstop boss is followed the long limit of insulating holder extends, just both ends on the backstop boss extending direction with two broadsides of insulating holder are parallel and level respectively.
Further, the thickness of the stopping boss is larger than or equal to half of the thickness of the pole lug part and smaller than or equal to ten times of the thickness of the pole lug part.
Further, the width of the stop boss is greater than or equal to one twentieth of the width of the pole ear.
The embodiment of the utility model provides a battery is still provided, include the electric core subassembly, the electric core subassembly include centre gripping subassembly, electric core main part and utmost point ear portion, utmost point ear portion is protruding to be located the one end of electric core main part, the centre gripping subassembly ring is located the bottom of utmost point ear portion, utmost point ear portion includes a plurality of utmost point ears that stack gradually the setting, the centre gripping subassembly is used for the centre gripping a plurality of utmost point ear.
Compared with the prior art, the utility model provides a cell subassembly, its centre gripping subassembly sets up in utmost point ear's bottom to the realization is fixed to the centre gripping of a plurality of utmost point ears of laminating together, plays the additional strengthening to the bottom of utmost point ear, prevents that utmost point ear from receiving the exogenic action to take place buckling after the root branching, thereby reaches the purpose that prevents utmost point ear reverse plug. Therefore, the utility model provides an electricity core subassembly's beneficial effect includes: can prevent utmost point ear from inserting backward, has higher security.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. It is obvious to a person skilled in the art that other relevant figures can also be derived from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of an electrical core assembly provided in an embodiment of the present invention at a first viewing angle;
fig. 2 is a structural schematic view of the fitting structure of the clamping assembly and the tab in fig. 1, in a second view.
Icon: 100-an electric core component; 110-a clamping assembly; 111-stop-loop-chlamydia; 112-an insulating holder; 1121-stop boss; 120-a cell body; 130-pole ear.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be broadly construed, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
Examples
Referring to fig. 1, fig. 1 is a schematic structural view of a current core assembly 100 according to the present embodiment at a first viewing angle.
The electric core assembly 100 provided by the embodiment includes a clamping assembly 110, an electric core main body 120 and a tab portion 130, wherein the tab portion 130 is convexly disposed at one end of the electric core main body 120, the clamping assembly 110 is annularly disposed at the bottom end of the tab portion 130, the tab portion 130 includes a plurality of tabs sequentially stacked, and the clamping assembly 110 is used for clamping a plurality of tabs.
In practical application, because the bottom of utmost point ear 130 is located to centre gripping subassembly 110 ring, realize fixed to the centre gripping of a plurality of utmost point ears that stack gradually, play the effect of 130 root reinforcing of utmost point ear, can guarantee that the inseparable laminating in root of a plurality of utmost point ears is in the same place, prevent that partial utmost point ear receives exogenic action and takes place root branching in going into shell in-process, avoid utmost point ear to buckle, get rid of utmost point ear inverted insertion risk.
It should be noted that, the clamping assembly 110 may be an integrated annular structure, or may be formed by connecting a plurality of single structures, and if the clamping assembly 110 is an integrated annular structure, the clamping assembly 110 may be directly sleeved into the bottom end of the tab portion 130 from the top end of the tab portion 130, so as to clamp the root portions of a plurality of tabs. If the clamping assembly 110 is formed by connecting a plurality of single structures, the single structures can be connected to the bottom end of the tab portion 130, so that the single structures jointly surround the bottom end of the tab portion 130.
In fact, in this embodiment, the bottom end of the tab portion 130 refers to the end of the tab portion 130 connected to the cell main body 120, the top end of the tab portion 130 refers to the end of the tab portion 130 away from the cell main body 120, the cell main body 120 is actually a roll core structure composed of an electrode sheet and a diaphragm, and a plurality of tabs constituting the tab portion 130 are formed on a plurality of electrode sheets in the cell main body 120.
In order to further improve the anti-reverse-insertion effect of the clamping assembly 110, in this embodiment, a stop ring wall 111 is convexly disposed on the outer side wall of the clamping assembly 110, and the stop ring wall 111 is used for stopping the middle portion of the tab from being bent and then being inserted into the battery cell main body 120.
In practical application, when a part of the tabs in the tab portion 130 are bent under the action of external force, and the middle of the tab moves toward the direction close to the cell main body 120, the moving path is blocked by the blocking ring wall 111, so that the middle of the tab is prevented from contacting the cell main body 120.
In this embodiment, in order to further enhance the root reinforcing effect on the plurality of tabs, the stop ring wall 111 is protruded from the bottom end of the outer sidewall of the clamping assembly 110.
It is understood that if the clamping assembly 110 is a one-piece ring structure, the stop ring 111 can be a ring structure disposed around the clamping assembly 110 on a side away from the lug portion 130. If the clamping assembly 110 is formed by connecting a plurality of single structures, the stop ring wall 111 may be formed by a protrusion structure protruding from one side of the plurality of single structures away from the tab portion 130. The stop ring wall 111 may be a continuous ring structure or a discontinuous ring track as long as it can effectively stop the tab.
Referring to fig. 2, fig. 2 is a schematic structural view of the fitting structure of the clamping element 110 and the tab in fig. 1 from a second perspective.
In this embodiment, the clamping assembly 110 includes two insulating clamping members 112, the two insulating clamping members 112 are respectively disposed at the bottom ends of two opposite sides of the tab portion 130, and two ends of the two insulating clamping members 112 are respectively connected to clamp a plurality of tabs together.
Considering that if the width dimension of the insulating clamping member 112 is too small, when some tabs of the tab portion 130 are bent, there is still a risk of getting over the insulating clamping member 112 and reaching the cell main body 120, in this embodiment, the width of the insulating clamping member 112 is greater than half of the width of the tab portion 130, the length of the tab portion 130 is equal to the length of the tab, the width of the tab portion 130 is equal to the width of the tab, and the thickness of the tab portion 130 is substantially equal to the sum of the thicknesses of a plurality of tabs. Thus, the width of the insulating clamp 112 is greater than half the width of the tab.
In practical applications, since the width of the insulating clamping member 112 is greater than half of the width of the tab, even if some tabs are bent, when the bent tabs move to the maximum stroke close to the cell main body 120 at an angle close to the vertical angle, a gap still exists between the bent tabs and the cell main body 120, so as to ensure that the tabs cannot contact the cell main body 120.
In addition, considering that a part of the top end of the tab portion 130 needs to be reserved for welding after entering the housing, in order to avoid the insulating clamping member 112 from blocking the part, in this embodiment, the distance between the insulating clamping member 112 and the top end of the tab portion 130 is greater than or equal to 10mm, that is, it can be ensured that the top end of the tab portion 130 is reserved with a width of 10mm for subsequent welding.
To ensure that the two corresponding ends of the two insulating holders 112 can be connected to each other, in this embodiment, the length of the insulating holder 112 is at least greater than the sum of the length and the thickness of the pole ear 130. When two insulating holders 112 are connected, two insulating holders 112 are arranged on two opposite sides of the pole ear 130, the two ends of the insulating holders 112 exceed the pole ear 130 in the same size, and then the parts of the two ends exceeding the pole ear 130 are bent correspondingly, so that the two ends of the two insulating holders 112 are contacted and connected. The two insulating clamping members 112 can be connected by bonding or heat fusion.
The bottom ends of the side walls of the two insulating clamping pieces 112 respectively far away from the tab portion 130 are respectively provided with a stopping boss 1121 in a protruding manner, and the stopping boss 1121 is used for stopping the tab and inserting into the cell main body 120 after the middle portion of the tab is bent. It can be understood that, under the condition that the two insulating clamping members 112 complete the end-to-end connection, one sides of the two insulating clamping members 112 respectively departing from the corresponding stopping bosses 1121 are attached to each other, and the two stopping bosses 1121 form a stopping ring wall 111, so as to realize the further stopping of the middle part of the bent tab.
In this embodiment, the insulating clamping members 112 are rectangular, and two ends of the two insulating clamping members 112 in the extending direction of the long sides are correspondingly connected respectively. The stopping protrusion 1121 extends along a long side of the insulating clamping member 112, and two ends of the stopping protrusion 1121 in the extending direction are respectively flush with two wide sides of the insulating clamping member 112, that is, the length of the stopping protrusion 1121 is equal to the length of the insulating clamping member 112.
In addition, in order to achieve effective reinforcement of the bottom end of the tab portion 130, the thickness of the stopper boss 1121 is greater than or equal to half of the thickness of the tab portion 130, and less than or equal to ten times the thickness of the tab portion 130. In the present embodiment, it is preferable that the thickness of the stopper boss 1121 is ten times the thickness of the insulation holder 112, and the width of the stopper boss 1121 is greater than or equal to one twentieth of the width of the tab portion 130.
In summary, the electric core assembly 100 provided by the embodiment improves the strength of the bottom end of the tab portion 130 by arranging the clamping assembly 110 at the bottom end of the tab portion 130, and ensures that the roots of the tabs are tightly attached to each other, so as to avoid the branching and bending, thereby preventing the tabs from being inserted upside down and having higher safety. Moreover, the stopping ring wall 111 is arranged on the clamping component 110, so that the stopping effect on the bent tab is achieved, and the anti-reverse-insertion effect is further improved.
The present embodiment also provides a battery, which includes the aforementioned battery cell assembly 100, and it is understood that the battery includes a housing, a top cover assembly and other conventional structures and elements, which are not described in the present embodiment. Because this electric core subassembly 100 has the characteristics of preventing that the utmost point ear from inserting backward, consequently, the battery that this embodiment provided is safe and reliable more.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an electric core subassembly, its characterized in that, includes centre gripping subassembly, electric core main part and utmost point ear portion, protruding locating of utmost point ear portion the one end of electric core main part, centre gripping subassembly ring is located the bottom of utmost point ear portion, utmost point ear portion includes a plurality of utmost point ears that stack gradually the setting, the centre gripping subassembly is used for the centre gripping a plurality of utmost point ear.
2. The cell assembly according to claim 1, wherein a stop collar is convexly disposed on an outer side wall of the clamping assembly, and the stop collar is used for stopping the middle portion of the tab from being inserted into the cell body after being bent.
3. The electrical core assembly as claimed in claim 2, wherein the stop collar is protruded from a bottom end of an outer sidewall of the clamping assembly.
4. The electric core assembly according to claim 1, wherein the clamping assembly comprises two insulating clamping members, the two insulating clamping members are respectively disposed at the bottom ends of two opposite sides of the pole ear portion, and two ends of the two insulating clamping members are respectively correspondingly connected to clamp a plurality of pole ears together.
5. The electrical core assembly of claim 4, wherein the insulating clamp has a width less than a width of the pole ear.
6. The battery core assembly according to claim 4, wherein the bottom ends of the side walls of the two insulating holders respectively far away from the tab portions are respectively provided with a stopping boss in a protruding manner, and the stopping bosses are used for stopping the middle portions of the tabs from being inserted into the battery core main body after being bent.
7. The electric core assembly according to claim 6, wherein said insulating holders are rectangular, and two ends of each of said insulating holders in the extending direction of the long side are correspondingly connected;
backstop boss is followed the long limit of insulating holder extends, just both ends on the backstop boss extending direction with two broadsides of insulating holder are parallel and level respectively.
8. The die assembly of claim 7, wherein the stop boss has a thickness greater than or equal to one half of the thickness of the tab portion and less than or equal to ten times the thickness of the tab portion.
9. The electrical core assembly of claim 7, wherein a width of the stop boss is greater than or equal to one twentieth of a width of the pole ear.
10. A battery comprising an electric core assembly as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222520239.4U CN218351677U (en) | 2022-09-22 | 2022-09-22 | Electricity core subassembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222520239.4U CN218351677U (en) | 2022-09-22 | 2022-09-22 | Electricity core subassembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218351677U true CN218351677U (en) | 2023-01-20 |
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ID=84894829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222520239.4U Active CN218351677U (en) | 2022-09-22 | 2022-09-22 | Electricity core subassembly and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218351677U (en) |
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2022
- 2022-09-22 CN CN202222520239.4U patent/CN218351677U/en active Active
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