CN219591537U - Compact structure's electric core - Google Patents
Compact structure's electric core Download PDFInfo
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- CN219591537U CN219591537U CN202321216080.5U CN202321216080U CN219591537U CN 219591537 U CN219591537 U CN 219591537U CN 202321216080 U CN202321216080 U CN 202321216080U CN 219591537 U CN219591537 U CN 219591537U
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- insulating plastic
- shell
- top end
- electrode
- battery cell
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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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- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a compact-structure battery cell, which comprises a shell, a winding core, an insulating plastic part, an electrode plate and a fixed gasket, wherein the winding core is arranged on the shell; wherein the shell is of a cylindrical structure with an opening at the top end; the winding core is arranged in the shell and is used for providing electric energy; the insulating plastic part is arranged at the top end of the shell, the insulating plastic part is connected with the shell, the top end of the shell is sealed by the insulating plastic part, and a mounting hole is formed in the center of the insulating plastic part. The compact-structure battery cell provided by the utility model has the advantages that the winding core is arranged in the shell to provide electric energy, and the shell is sealed by the insulating plastic part; the electrode slice sets up first junction surface in the bottom of insulating plastic spare, and the electrode slice top runs through the mounting hole to extend insulating plastic spare top, fixed gasket is located insulating plastic spare's top, and is connected with the electrode slice, and fixed gasket top sets up the electrode that the battery cell was drawn forth to the second junction surface, and the connection of two junction surfaces has promoted the stability that the electrode was drawn forth to the battery cell, and the drawing structure of battery cell is compact, and the practicality is strong.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a compact-structure battery cell.
Background
A battery is a device capable of converting chemical energy into electrical energy, and has a positive electrode and a negative electrode. With the progress of technology, the demands of portable devices and electric vehicles are increasing frequently, and the battery cell is one of the necessary configurations for providing power for such products.
The battery cell comprises a winding core, a tab and an electrode assembly for leading out a battery cell electrode, the tab and the electrode assembly of the existing winding core are welded together in a spot welding mode, the contact area of the tab and the electrode assembly is small, connection instability of the tab and the electrode assembly is easy to cause, the electrode assembly leads out the battery cell electrode to be in poor contact, and the problem of reduction of the production qualification rate of the battery cell is further caused.
Therefore, a compact battery cell is needed to solve the above technical problems.
Disclosure of Invention
The utility model provides a compact-structure battery cell, which solves the problem that in the battery cell in the prior art, the connection between the tab of a winding core and an electrode assembly is unstable through a point, and the electrode assembly is led out of a battery cell electrode to be easily in poor contact.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a compact electrical cell, comprising:
the shell is of a cylindrical structure with an opening at the top end;
the winding core is arranged in the shell and is used for providing electric energy;
the insulating plastic part is connected with the shell and seals the shell, and a mounting hole is formed in the insulating plastic part;
the electrode plate is provided with a first connecting surface at the bottom end, the first connecting surface is connected with the tab of the winding core, and the top end of the electrode plate penetrates through the mounting hole and extends; and
the fixed gasket is positioned above the insulating plastic part, the fixed gasket is connected with the electrode plate, a second connecting surface is arranged at the top end of the fixed gasket, and the second connecting surface is used for leading out the electrode of the battery cell.
In the present utility model, the electrode sheet includes:
the connecting part is positioned at the bottom of the electrode plate, the top end of the connecting part is attached to the bottom surface of the insulating plastic part, and the first connecting surface is positioned at the bottom end of the connecting part;
the extending part is positioned in the middle of the electrode plate, the extending part is spliced with the mounting hole, the extending part penetrates through the insulating plastic part, and the fixing gasket is sleeved on the outer ring of the extending part; and
and the limiting part is positioned at the top of the electrode plate and is positioned above the fixed gasket, and the limiting part limits the position of the fixed gasket.
In the utility model, the extension part is a hollow structure with an open top.
In the utility model, a first anti-skid stripe groove is formed in the bottom surface of the insulating plastic part, and the first anti-skid stripe groove is attached to the top end of the connecting part.
In the utility model, the top surface of the insulating plastic part is provided with the second anti-skid stripe groove, and the second anti-skid stripe groove is attached to the bottom surface of the fixed gasket.
In the utility model, a positioning protrusion is further arranged in the shell, a positioning groove is arranged on the outer side of the insulating plastic part, and the positioning protrusion is clamped with the positioning groove.
In the present utility model, the insulating plastic member includes:
the mounting hole is positioned at the center of the supporting plate;
the fixed cylinder is connected with the outer side of the supporting plate, and the outer side of the fixed cylinder is spliced with the inner part of the shell; and
and the baffle is connected with the outer side of the top end of the fixed cylinder, the baffle is attached to the top surface of the shell, and the baffle limits the position of the insulating plastic part.
In the utility model, the center of the top end of the supporting plate is provided with the reinforcing block, the mounting hole penetrates through the reinforcing block, and the fixing gasket is arranged at the top end of the reinforcing block.
In the utility model, the outer side of the fixed cylinder is provided with the sealing ring, and the sealing ring is in interference connection with the inner wall of the shell.
In the utility model, the explosion-proof hole is arranged on the insulating plastic part, and the battery cell also comprises an explosion-proof structure, and the explosion-proof structure is in sealing connection with the explosion-proof hole.
Compared with the prior art, the utility model has the beneficial effects that: the compact-structure battery cell provided by the utility model has the advantages that the winding core is arranged in the shell to provide electric energy, and the shell is sealed by the insulating plastic part; the electrode slice sets up first junction surface in the bottom of insulating plastic spare, and the electrode slice top runs through the mounting hole to extend insulating plastic spare top, fixed gasket is located insulating plastic spare's top, and is connected with the electrode slice, and fixed gasket top sets up the electrode that the battery cell was drawn forth to the second junction surface, and the connection of two junction surfaces has promoted the stability that the electrode was drawn forth to the battery cell, and the drawing structure of battery cell is compact, and the practicality is strong.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments are briefly described below, and the drawings in the following description are only drawings corresponding to some embodiments of the present utility model.
Fig. 1 is a schematic diagram of the overall structure of a battery cell according to a first embodiment of the present utility model.
Fig. 2 is a cross-sectional view of the overall structure of a battery cell according to a first embodiment of the present utility model.
Fig. 3 is a perspective view of an insulating plastic member according to a first embodiment of the present utility model.
Fig. 4 is a schematic diagram of the overall structure of a battery cell according to a second embodiment of the present utility model.
Fig. 5 is a cross-sectional view of the overall structure of a battery cell according to a second embodiment of the present utility model.
Fig. 6 is a perspective view of an insulating plastic member according to a second embodiment of the present utility model.
First embodiment reference numerals:
11. a housing; 111. positioning the bulge; 112. a sealing structure;
12. a winding core; 121. a tab;
13. an insulating plastic part; 131. a mounting hole; 132. a first anti-slip stripe groove; 133. a second anti-slip stripe groove; 134. a positioning groove;
14. an electrode sheet; 14a, a first connection face; 141. a connection part; 142. an extension; 143. a limit part;
15. fixing the gasket; 15a, a second connection surface;
second embodiment reference numerals:
21. a housing;
22. a winding core;
23. an insulating plastic part; 231. a support plate; 2311. a mounting hole; 2312. explosion-proof holes; 232. a fixed cylinder; 233. a baffle; 234. a reinforcing block; 235. a seal ring;
24. an electrode sheet; 24a, a first connection face;
25. fixing the gasket; 25a, a second connection surface;
26. an explosion-proof structure.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the drawings, like structural elements are denoted by like reference numerals. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic diagram of an overall structure of a battery cell according to a first embodiment of the utility model. Fig. 2 is a cross-sectional view of the overall structure of a battery cell according to a first embodiment of the present utility model. Fig. 3 is a perspective view of an insulating plastic member according to a first embodiment of the present utility model.
The following is a preferred embodiment of a compact electrical core that solves the above technical problems.
The preferred embodiment of the compact electric core provided by the utility model is as follows: the battery cell with a compact structure comprises a shell 11, a winding core 12, an insulating plastic part 13, an electrode plate 14 and a fixed gasket 15; wherein the shell 11 is a cylindrical structure with an open top end; the winding core 12 is arranged in the shell 11, and the winding core 12 is used for providing electric energy; the insulating plastic part 13 is arranged at the top end of the shell 11, the insulating plastic part 13 is connected with the shell 11, the insulating plastic part 13 seals the top end of the shell 11, and a mounting hole 131 is formed in the center of the insulating plastic part 13.
The bottom end of the electrode plate 14 is provided with a first connecting surface 14a, and the first connecting surface 14a is connected with the tab 121 of the winding core 12; the tip of the electrode tab 14 extends through the mounting hole 131. The fixed gasket 15 is located insulating plastic part 13 top, and fixed gasket 15 is connected with electrode slice 14, and fixed gasket 15 top is provided with second connection face 15a, and second connection face 15a is used for drawing forth the electrode of electric core.
Preferably, the electrode plate 14 and the fixing plate 15 in this embodiment are used for leading out the positive electrode of the battery cell. The housing 11 in this embodiment is a metal housing, and the bottom end of the housing 11 is used for leading out the negative electrode of the battery cell.
The insulating plastic part 13 in this embodiment seals the top of shell 11, electrode piece 14 sets up first junction surface 14a in the bottom of insulating plastic part 13, electrode piece 14 top runs through mounting hole 131 to extend insulating plastic part 13 top, fixed gasket 15 is located insulating plastic part 13's top, and be connected with electrode piece 14, fixed gasket 15 top sets up the electrode of second junction surface 15a extraction cell, the connection of two junction surfaces has promoted the stability of battery cell extraction electrode, the extraction structure of battery cell is compact, the practicality is strong.
The structure of the electrode sheet 14 in this embodiment is explained as follows with reference to fig. 2 and 3:
the electrode sheet 14 includes a connecting portion 141, an extending portion 142, and a limiting portion 143; the connecting portion 141 is located at the bottom of the electrode plate 14, the top end of the connecting portion 141 is attached to the bottom surface of the insulating plastic member 13, and the first connecting surface 14a is located at the bottom end of the connecting portion 141. The extension part 142 is positioned in the middle of the electrode plate 14, and the extension part 142 is spliced with the mounting hole 131. The bottom end of the extension portion 142 in this embodiment is connected to the center of the top surface of the connection portion 141. The extension portion 142 penetrates through the insulating plastic member 13, and the fixing spacer 15 is sleeved on the outer ring of the extension portion 142. The limiting part 143 is positioned at the top of the electrode plate 14, the limiting part 143 is positioned above the fixed gasket 15, and the limiting part 143 limits the position of the fixed gasket 15, so that the fixed gasket 15 is prevented from loosening and falling.
The limiting portion 143 in this embodiment is made by pressing manually or by equipment after penetrating the fixing pad 15 through the extending portion 142. Further, the extension portion 142 is a hollow structure with an open top, which reduces the weight of the electrode sheet 14 and reduces the production consumable of the electrode sheet 14.
The structure of the insulating plastic member 13 in this embodiment will be described with reference to fig. 1, 2 and 3:
in this embodiment, a first anti-slip stripe groove 132 is formed on the bottom surface of the insulating plastic member 13, and the first anti-slip stripe groove 132 is attached to the top end of the connecting portion 141. The first anti-slip stripe groove 132 promotes the stability of connection of the insulating plastic member 13 and the electrode sheet 14.
In this embodiment, the top surface of the insulating plastic member 13 is provided with a second anti-slip stripe groove 133, and the second anti-slip stripe groove 133 is attached to the bottom surface of the fixing pad 15. The second anti-slip stripe groove 133 improves the stability of the connection of the insulating plastic member 13 and the fixing pad 15.
In addition, as shown in fig. 2, a positioning protrusion 111 is further disposed inside the housing 11 in the present embodiment, and a positioning groove 134 is disposed outside the insulating plastic member 13, where the positioning protrusion 111 is engaged with the positioning groove 134. The positioning protrusion 111 in the shell 11 is clamped with the positioning groove 134 on the side edge of the insulating plastic part 13, so that the contact surface of the shell 11 and the insulating plastic part 13 is improved, and the connection stability is ensured; and the position of the insulating plastic part 13 is limited, so that the winding core 12 is prevented from being excessively extruded in the assembly process of the insulating plastic part 13, and the structural stability is improved. The positioning protrusion 111 in this embodiment is preferably in an annular structure, and the positioning protrusion 111 is manufactured by the outer shell 11 through an outside-in rolling process, so as to facilitate the assembly of the battery cell.
At least one group of positioning protrusions 111 are arranged, at least one group of positioning grooves 134 are arranged on the outer side of the insulating plastic part 13, and the positioning protrusions 111 correspond to the positioning grooves 134 one by one. The plurality of groups of positioning protrusions and the plurality of groups of positioning grooves are arranged to be clamped, so that the tightness and stability of the connection between the shell 11 and the insulating plastic part 13 can be further improved.
In addition, the top end of the housing 11 in the embodiment is provided with a sealing structure 112, the sealing structure 112 is used for limiting the position of the insulating plastic part 13, so that the insulating plastic part 13 is prevented from falling, and the compactness and stability of the overall structure of the battery cell are improved.
The assembly process of the compact battery cell in this embodiment is described as follows with reference to fig. 1, 2 and 3:
1. the electrode sheet 14 is assembled with the insulating plastic member 13.
The extension 142 of the electrode plate 14 is inserted into the mounting hole of the insulating plastic member 13 from bottom to top. The top surface of the connecting part 141 of the electrode plate 14 inserted in place is attached to the bottom surface of the insulating plastic part 13, and the first connecting surface 14a faces downwards; the top end of the extension 142 extends out of the top end of the insulating plastic member 13.
2. The fixed pad 15 is inserted and assembled with the electrode plate 14.
The second connecting surface 15a of the fixing spacer 15 faces upwards, and the fixing spacer 15 is inserted into the extension portion 142 extending out of the top end of the insulating plastic member 13.
3. The extension portion 142 is rolled down, so that the portion of the extension portion 142 penetrating through the fixed pad 15 is deformed to form the limiting portion 143.
The position of the fixed gasket 15 is limited by the limiting part 143, and meanwhile, the fixed gasket 15 and the electrode plate 14 are prevented from loosening and falling off from the insulating plastic piece 13, so that the compactness and stability of the connection between the insulating plastic piece 13 and the electrode plate 14 and the fixed gasket 15 are improved.
4. The winding core 12 is placed in the housing 11, the housing 11 in this embodiment is a metal housing, and the bottom end of the housing 11 is used for leading out the negative electrode of the battery cell.
5. The insulating plastic member 13 is hermetically connected to the housing 11.
The insulating plastic part 13 is placed in the shell 11, so that the first connecting surface 14a at the bottom end of the electrode plate 14 is tightly contacted with the tab 121 on the winding core 12, and the positive electrode of the battery cell is led out.
Then, the positioning protrusion 112 positioned in the shell 11 is manufactured by the shell 11 through a rolling process from outside to inside, and the positioning protrusion 112 is clamped with the positioning groove 133 on the outer side of the insulating plastic part 13, so that the insulating plastic part 13 is in sealing connection with the shell 11.
6. The sealing structure 111 at the top end of the shell 11 is manufactured by the rolling process of the shell 11 from outside to inside, and the sealing structure 111 prevents the insulating plastic piece 13 from falling off.
Thus, the assembly process of the battery cell with the compact structure of the embodiment is completed.
Referring to fig. 4, fig. 5, and fig. 6, fig. 4 is a schematic diagram of the overall structure of a battery cell according to a second embodiment of the present utility model. Fig. 5 is a cross-sectional view of the overall structure of a battery cell according to a second embodiment of the present utility model. Fig. 6 is a perspective view of an insulating plastic member according to a second embodiment of the present utility model.
A second embodiment of the present utility model is provided below, in which a second implementation structure of the insulating plastic part of the present utility model is mainly provided.
The battery cell with a compact structure comprises a shell 21, a winding core 22, an insulating plastic part 23, an electrode plate 24 and a fixed gasket 25; wherein the shell 21 is a cylindrical structure with an open top end; the winding core 22 is arranged in the shell 21, and the winding core 22 is used for providing electric energy; the insulating plastic part 23 is arranged at the top end of the shell 21, the insulating plastic part 23 is connected with the shell 21, the insulating plastic part 23 seals the top end of the shell 21, and a mounting hole 2311 is formed in the center of the insulating plastic part 23.
The electrode plate 24 is spliced with the mounting hole 2311, the top end of the electrode plate 24 extends out of the top end of the insulating plastic part 23, the bottom end of the electrode plate 24 is provided with a first connecting surface, and the first connecting surface of the explosion-proof structure 26 is connected with the tab of the winding core 22; the fixed gasket 25 is located above the insulating plastic part 23, the fixed gasket 25 is connected with the electrode plate 24, a second connecting surface 25a is arranged at the top end of the fixed gasket 25, and the second connecting surface 25a is used for leading out an electrode of the battery cell of the explosion-proof structure 26, preferably leading out an anode of the battery cell in the embodiment.
The insulating plastic part 23 in this embodiment seals the top of shell 21, and the battery cell through setting up electrode slice 24 and fixed gasket 25, compact structure, electrode slice 24 sets up first junction surface in insulating plastic part 23's bottom, and fixed gasket 25 sets up second junction surface 25a in insulating plastic part 23's top, and the connection of two junction surfaces has promoted the stability of battery cell extraction electrode, and structural practicality is strong. The electrode plate 244 and the fixing plate 25 in this embodiment are used for extracting the positive electrode of the battery cell. The casing 21 in this embodiment is a metal casing, and the bottom end of the casing 21 is used for leading out the negative electrode of the battery cell
The insulating plastic member 23 includes a support plate 231, a fixing cylinder 232, and a baffle 233; wherein the mounting hole 2311 is located at the center of the support plate 231; the fixed cylinder 232 is connected with the outer side of the supporting plate 231, and the outer side of the fixed cylinder 232 is spliced with the inner part of the shell 21; the baffle 233 is connected to the outside of the top end of the fixed cylinder 232, the baffle 233 is attached to the top surface of the housing 21, and the baffle 233 defines the position of the insulating plastic member 23.
Further, a reinforcing block 234 is provided at the center of the top end of the support plate 231, and a mounting hole 2311 penetrates the reinforcing block 234, and a fixing spacer 25 is provided at the top end of the reinforcing block 234. The reinforcing block 234 promotes the intensity of backup pad 231 center department, promotes backup pad 231 and assembles the stability of electrode slice 24 and fixed gasket 25, and the structural practicality is strong.
In addition, a sealing ring 235 is arranged on the outer side of the fixed cylinder 232 in the embodiment, and the sealing ring 235 is in interference connection with the inner wall of the shell 21. The sealing ring 235 promotes the stability of sealing the insulating plastic member 23 with the housing 21.
In this embodiment, the insulating plastic member 23 is provided with an explosion-proof hole 2312, and the battery cell of the explosion-proof structure 26 further includes an explosion-proof structure 26, where the explosion-proof structure 26 is connected with the explosion-proof hole 2312 in a sealing manner. The battery cell is provided with an explosion-proof structure 26 on the insulating plastic part 23, so that the safety of the battery cell in the use process is improved.
The explosion-proof structure 26 in this embodiment is an explosion-proof sheet, and the explosion-proof sheet seals the explosion-proof hole 2312; and the explosion-proof sheet can be a metal explosion-proof sheet or a plastic explosion-proof sheet.
The assembly process of the compact battery cell in the second embodiment is explained as follows:
1. the electrode sheet 24 is assembled with the insulating plastic member 23.
The structure of the electrode sheet 24 in this embodiment is the same as that of the electrode sheet 14 in the first embodiment, and will not be described here. The extension part of the electrode plate 24 is spliced with the mounting hole 2311 on the insulating plastic member 23 from bottom to top. The top surface of the connecting part of the electrode sheet 24 after being inserted in place is attached to the bottom surface of the insulating plastic part 23, and the first connecting surface faces downwards; the top end of the extension extends out of the top end of the insulating plastic member 23.
2. The fixing pad 25 is inserted and assembled with the electrode plate 24.
The second connecting surface 25a of the fixing spacer 25 faces upwards, and the fixing spacer 25 is inserted into the extension part extending out of the top end of the insulating plastic member 23.
3. The extension portion 142 is rolled down, so that the portion of the extension portion 142 penetrating through the fixed pad 25 deforms to form a limiting portion.
The position of the fixed gasket 25 is limited by the limiting part, and meanwhile, the fixed gasket 25 and the electrode plate 24 are prevented from loosening and falling off from the insulating plastic piece 23, so that the compactness and stability of connection between the insulating plastic piece 23 and the electrode plate 24 and the fixed gasket 25 are improved.
4. The winding core 22 is placed in the housing 21.
The casing 21 in this embodiment is a metal casing, and the bottom end of the casing 21 is used for leading out the negative electrode of the battery cell.
5. The insulating plastic member 23 is inserted and connected with the housing 21 in a sealing manner.
The insulating plastic part 23 is placed in the shell 21, the outer side of the fixed cylinder 232 on the insulating plastic part 23 is inserted into the shell 21, and the supporting plate 231 drives the connecting sheet 24 to move towards the direction approaching the winding core 22.
After the baffle 233 on the insulating plastic member 23 contacts with the top end of the housing 21, the insulating plastic member 23 is inserted into place with the housing 21, and the first connection surface at the bottom end of the electrode plate 24 is in close contact with the tab on the winding core 22, so as to lead out the positive electrode of the battery cell in the embodiment.
And the outside of the fixed cylinder 232 is provided with a sealing ring 235, and the sealing ring 235 is in interference connection with the inner wall of the shell 21, so that the sealing stability of the insulating plastic part 23 and the shell 21 is improved.
This completes the assembly process of the compact cell of the second embodiment.
In summary, although the present utility model has been described in terms of the preferred embodiments, the preferred embodiments are not limited to the above embodiments, and various modifications and changes can be made by one skilled in the art without departing from the spirit and scope of the utility model, and the scope of the utility model is defined by the appended claims.
Claims (10)
1. A compact electrical cell comprising:
the shell is of a cylindrical structure with an opening at the top end;
the winding core is arranged in the shell and is used for providing electric energy;
the insulating plastic part is connected with the shell and seals the shell, and a mounting hole is formed in the insulating plastic part;
the electrode plate is provided with a first connecting surface at the bottom end, the first connecting surface is connected with the tab of the winding core, and the top end of the electrode plate penetrates through the mounting hole and extends; and
the fixed gasket is positioned above the insulating plastic part, the fixed gasket is connected with the electrode plate, a second connecting surface is arranged at the top end of the fixed gasket, and the second connecting surface is used for leading out the electrode of the battery cell.
2. The compact cell as recited in claim 1, wherein said electrode pad comprises:
the connecting part is positioned at the bottom of the electrode plate, the top end of the connecting part is attached to the bottom surface of the insulating plastic part, and the first connecting surface is positioned at the bottom end of the connecting part;
the extending part is positioned in the middle of the electrode plate, the extending part is spliced with the mounting hole, the extending part penetrates through the insulating plastic part, and the fixing gasket is sleeved on the outer ring of the extending part; and
and the limiting part is positioned at the top of the electrode plate and is positioned above the fixed gasket, and the limiting part limits the position of the fixed gasket.
3. The compact cell as recited in claim 2, wherein said extension is an open-topped hollow structure.
4. The compact electrical cell of claim 2, wherein the insulating plastic member bottom surface is provided with a first anti-slip stripe groove, the first anti-slip stripe groove being in engagement with the connecting portion top end.
5. The compact electrical cell of claim 1, wherein the top surface of the insulating plastic member is provided with a second anti-slip stripe groove, the second anti-slip stripe groove being in engagement with the bottom surface of the fixed gasket.
6. The compact electric core according to claim 1, wherein a positioning protrusion is further provided in the housing, a positioning groove is provided on the outer side of the insulating plastic member, and the positioning protrusion is engaged with the positioning groove.
7. The compact electrical cell of claim 1, wherein the insulating plastic member comprises:
the mounting hole is positioned at the center of the supporting plate;
the fixed cylinder is connected with the outer side of the supporting plate, and the outer side of the fixed cylinder is spliced with the inner part of the shell; and
and the baffle is connected with the outer side of the top end of the fixed cylinder, the baffle is attached to the top surface of the shell, and the baffle limits the position of the insulating plastic part.
8. The compact cell as recited in claim 7, wherein a reinforcing block is provided at a center of a top end of said support plate, said mounting hole penetrates said reinforcing block, and said fixing spacer is provided at a top end of said reinforcing block.
9. The compact electrical cell as recited in claim 7, wherein a seal ring is disposed on the outside of the stationary cylinder, the seal ring being in interference engagement with the inner wall of the housing.
10. The compact-structure battery cell of claim 1, wherein the insulating plastic part is provided with explosion-proof holes, and the battery cell further comprises an explosion-proof structure, and the explosion-proof structure is in sealing connection with the explosion-proof holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321216080.5U CN219591537U (en) | 2023-05-19 | 2023-05-19 | Compact structure's electric core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321216080.5U CN219591537U (en) | 2023-05-19 | 2023-05-19 | Compact structure's electric core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219591537U true CN219591537U (en) | 2023-08-25 |
Family
ID=87694863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321216080.5U Active CN219591537U (en) | 2023-05-19 | 2023-05-19 | Compact structure's electric core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219591537U (en) |
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2023
- 2023-05-19 CN CN202321216080.5U patent/CN219591537U/en active Active
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