CN215816080U - A top cap subassembly, battery and energy memory for battery - Google Patents
A top cap subassembly, battery and energy memory for battery Download PDFInfo
- Publication number
- CN215816080U CN215816080U CN202122307701.8U CN202122307701U CN215816080U CN 215816080 U CN215816080 U CN 215816080U CN 202122307701 U CN202122307701 U CN 202122307701U CN 215816080 U CN215816080 U CN 215816080U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- hole
- battery
- top cover
- cap assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004146 energy storage Methods 0.000 claims abstract description 10
- 230000000670 limiting effect Effects 0.000 claims description 27
- 238000003825 pressing Methods 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 125000001967 indiganyl group Chemical group [H][In]([H])[*] 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 17
- 239000012212 insulator Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000003466 welding Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a top cover assembly for a battery, the battery and an energy storage device. The top cover assembly comprises a top cover plate, an insulating cover plate and a collector bar, the insulating cover plate and the top cover plate are stacked, one side, away from the top cover plate, of the insulating cover plate is provided with a stopping part, the insulating cover plate is provided with a mounting hole, and a pole penetrates through the mounting hole; the current collecting bar is positioned on one side of the insulating cover plate, which is far away from the top cover plate, and the stopping part is used for supporting the current collecting bar. According to the top cover assembly for the battery, the stopping part is arranged, so that the current collecting bar can be supported, the current collecting bar can be protected, the current collecting bar is prevented from being deformed due to extrusion and collision, and the safety performance of the top cover assembly is improved.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a top cover assembly for a battery, the battery and an energy storage device.
Background
With the development of society, the environmental pollution is aggravated and the traditional energy is exhausted day by day, so people have stronger and stronger awareness on environmental protection. Lithium ion batteries are the first choice of green energy due to their advantages of high energy density, high voltage, low discharge rate, long cycle life, etc., and thus are widely used in portable devices such as bluetooth headsets, mobile phones, digital computers, tablet computers, etc., and large-scale devices such as electric vehicles, energy storage power stations, etc.
Under comparing, cylindrical battery more can exert inner space's utilization ratio, but consider the complexity of cylindrical battery assembling process, especially top cap subassembly's assembling process is too loaded down with trivial details, can't guarantee top cap subassembly's the stability of collecting the flow, influences the installation performance of battery.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. To this end, the present invention provides a cap assembly for a battery, which has advantages of easy assembly and simple structure.
The utility model also provides a battery, which is provided with the top cover component for the battery.
The utility model also provides an energy storage device which comprises a plurality of batteries.
A cap assembly for a battery according to an embodiment of the present invention includes: a top cover plate; the insulating cover plate and the top cover plate are stacked, one side, away from the top cover plate, of the insulating cover plate is provided with a stopping part, the insulating cover plate is provided with a mounting hole, and a pole column penetrates through the mounting hole; the current collecting bar is positioned on one side, away from the top cover plate, of the insulating cover plate, and the abutting portion is used for supporting the current collecting bar.
According to the top cover assembly for the battery, the stop part is arranged, so that the stop part not only can play a role in supporting the current collecting bar, but also can play a role in protecting the current collecting bar, and the current collecting bar is prevented from being deformed due to extrusion and collision, so that the safety performance of the top cover assembly is improved.
In some embodiments, the stopping portion is an arc rib.
In some embodiments, the number of the stopping portions is two, and the two stopping portions are symmetrically distributed about the mounting hole.
In some embodiments, the stopping portion is cylindrical, and the stopping portion is spaced apart from the stopping portion.
In some embodiments, further comprising: the insulating part is provided with a positioning hole, the top cover plate is provided with a through hole, and the through hole, the mounting hole and the positioning hole are opposite; a pressing block, the pressing block is arranged on one side of the insulating piece, which is far away from the top cover plate, a limiting hole is arranged on the pressing block, the limit hole is opposite to the locating hole, the pole comprises a main body part, a first convex edge and a second convex edge, the first convex edge is positioned at the edge of one end of the main body part and protrudes out of the peripheral wall surface of the main body part, the first convex edge extends along the circumferential direction of the main body part, the second convex edge is positioned at the edge of the other end of the main body part, the second convex edge protrudes out of the peripheral wall surface of the main body part, the second convex edge extends along the peripheral direction of the main body part, the limiting hole comprises a first hole section, a second hole section and a third hole section which are sequentially communicated, the first convex edge is positioned in the second hole section, a portion of the body portion is located within the third bore section, the first bore section having a radial dimension greater than a radial dimension of the second bore section.
In some embodiments, a surface of the first rim facing away from the second rim is flush with the inner bottom wall of the first hole section.
In some embodiments, a side of the press block facing the insulator has a fitting protrusion, and a side of the insulator facing the press block has a fitting groove, and the fitting protrusion is engaged with the fitting groove.
In some embodiments, the height of the protrusion of the fitting protrusion from the surface of the compact is H1The depth of the embedding groove is H2In which H is1＞H2。
A battery according to an embodiment of the present invention includes a cap assembly for a battery as described above. According to the battery provided by the embodiment of the utility model, the current collecting bar can be accommodated at one side of the insulating cover plate in a folding mode, the assembly force can extrude the current collecting bar in the assembly process of the top cover assembly, and the stopping part is arranged, so that the current collecting bar can be supported, and the current collecting bar can be protected.
An energy storage device according to an embodiment of the present invention includes a plurality of batteries as described above. According to the energy storage device provided by the embodiment of the utility model, the collector bar can be accommodated at one side of the insulating cover plate in a folding manner, the assembly force can extrude the collector bar in the assembly process of the top cover assembly, and the stop part is arranged, so that the collector bar can be supported, and the function of protecting the collector bar can be achieved.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a front view of a cap assembly for a battery according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a schematic view of a portion of the structure of FIG. 2;
FIG. 4 is an enlarged partial schematic view at B of FIG. 3;
FIG. 5 is a schematic view of a portion of the structure of FIG. 2, without the inclusion of a post;
FIG. 6 is an enlarged partial schematic view at C of FIG. 5;
fig. 7 is a top view of a cap assembly for a battery according to an embodiment of the present invention;
fig. 8 is a perspective view of a cap assembly for a battery according to an embodiment of the present invention;
fig. 9 is an exploded view of a cap assembly for a battery according to an embodiment of the present invention;
fig. 10 is a cross-sectional schematic view of the pole of fig. 9;
FIG. 11 is a perspective view from one perspective of the compact of FIG. 9;
FIG. 12 is a perspective view from another perspective of the compact of FIG. 9;
FIG. 13 is a schematic cross-sectional view of the compact of FIG. 9;
FIG. 14 is a perspective view of one perspective of the insulator of FIG. 9;
FIG. 15 is a perspective view of the insulator of FIG. 9 from another perspective;
FIG. 16 is a front view of the insulator of FIG. 9;
FIG. 17 is a cross-sectional view of the insulator of FIG. 9;
FIG. 18 is a perspective view of one perspective of the insulating cover of FIG. 9;
FIG. 19 is a perspective view of the insulating cover of FIG. 9 from another perspective;
FIG. 20 is a front view of the insulating cover plate of FIG. 9;
FIG. 21 is a cross-sectional view of the insulating cover plate of FIG. 9;
FIG. 22 is a schematic partial structure view of FIG. 21;
fig. 23 is a schematic view of the fitting structure of the insulating cover plate and the current collector in fig. 9;
FIG. 24 is a sectional view in the direction F-F in FIG. 23;
FIG. 25 is a perspective view of one perspective of the top cover plate of FIG. 9;
FIG. 26 is a front view of the top cover plate of FIG. 9;
FIG. 27 is a perspective view of the top cover plate of FIG. 9 from another perspective;
fig. 28 is a front view of the header of fig. 9 with the header in a deployed state;
fig. 29 is a schematic structural view of the header of fig. 9, with the header in a folded condition;
fig. 30 is a schematic view of the configuration of the collector bar of fig. 9, with the collector bar in a folded state. Reference numerals:
the top cover assembly (100) is provided with a cover,
an insulating cover plate 110, a mounting hole 111, a limiting rib 112, a first limiting rib 113, a second limiting rib 114, a third limiting rib 115, a reinforcing rib 116,
a stop 117, a protective flange 118, a hem 119,
a top cover plate 120, a through hole 121, an anti-rotation groove 122,
an insulating member 130, a positioning hole 131, a boss 132, a second chamfer 133, a third chamfer 134, an embedding groove 135, an anti-rotation convex edge 136, a first anti-rotation edge 137, a second anti-rotation edge 138,
a pressing block 140, a limiting hole 141, a first chamfer 142, a first hole section 143, a second hole section 144, a third hole section 145, a tabling bulge 146,
the post 150, the body portion 151, the first flange 152, the second flange 153,
the seal cavity 154, the gap 155, the seal 156,
a first portion 163, a second portion 164, a third portion 165, an enlarged section 166, relief notches 167, relief holes 168,
an explosion-proof hole 170, an explosion-proof valve 171, a liquid filling hole 172 and a liquid filling hole plug 173.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
A cap assembly 100 for a battery according to an embodiment of the present invention is described below with reference to fig. 1 to 30, the cap assembly 100 including an insulating cap plate 110, a cap plate 120, and a current collector 160. For example, the battery may be a secondary battery.
Specifically, as shown in fig. 20 to 22, the insulating cover plate 110 and the top cover plate 120 are stacked, the collector bar 160 is located on a side of the insulating cover plate 110 away from the top cover plate 120, and the side of the insulating cover plate 110 away from the top cover plate 120 is provided with a stop portion 117, and the stop portion 117 is used for supporting the collector bar 160. The insulating cover plate 110 may have a mounting hole 111, and the pole 150 is inserted through the mounting hole 111.
For example, the header 160 may be received at one side of the insulating cover plate 110 in a folded manner, the header 160 may be pressed by an assembling force during the assembly of the cap assembly 100, and the header 160 may be prevented from being pressed and deformed by the provision of the stopper 117. The collector bar 160 can be connected with the pole 150 in a welding mode, and the welding stability of the collector bar 160 and the pole 150 can be improved.
According to the top cap assembly 100 for the battery of the embodiment of the utility model, the stopping part 117 is arranged, the current collecting bar 160 can be supported on the stopping part 117 along the thickness direction of the insulating cover plate 110, the stopping part 117 not only can play a role of supporting the current collecting bar 160, but also can play a role of protecting the current collecting bar 160, and the current collecting bar 160 is prevented from being deformed due to extrusion and collision, so that the safety performance of the top cap assembly 100 is improved.
As shown in fig. 3 and 10, the pole 150 may include a main body 151, a first convex edge 152 and a second convex edge 153, the main body 151 is in a column shape, the first convex edge 152 is located at an edge of one end of the main body 151, the first convex edge 152 protrudes out of a peripheral wall surface of the main body 151, the first convex edge 152 extends along a circumferential direction of the main body 151, the second convex edge 153 is located at an edge of the other end of the main body 151, the second convex edge 153 protrudes out of a peripheral wall surface of the main body 151, and the second convex edge 153 extends along the circumferential direction of the main body 151.
As shown in fig. 3, the main body 151 is disposed through the limiting hole 141, the positioning hole 131, the through hole 121 and the mounting hole 111, the pressing block 140, the insulating member 130, the top cover plate 120 and the insulating cover plate 110 are sandwiched between the first convex edge 152 and the second convex edge 153, the first convex edge 152 abuts against the pressing block 140, and the second convex edge 153 abuts against the insulating cover plate 110. Here, the first flange 152 and the second flange 153 play a role in compressing and fixing the pressing block 140, the insulating member 130, the top cover plate 120 and the insulating cover plate 110, which are stacked, so that the stability of the top cover assembly 100 can be improved.
As shown in fig. 4 to 6, the through hole 121 has a smaller diameter than the mounting hole 111, and the positioning hole 131 has a smaller diameter than the through hole 121. Thus, the through hole formed by the through hole 121, the mounting hole 111, and the positioning hole 131 may be divided into a plurality of hole sections having different hole diameters. Further, the surface of the second convex edge 153 facing the first convex edge 152, the inner peripheral wall of the mounting hole 111, and the surface of the top cover plate 120 facing the second convex edge 153 and protruding from the inner peripheral wall of the mounting hole 111 define a sealed cavity 154, and a seal 156 is disposed in the sealed cavity 154.
It should be noted that, as shown in fig. 23 and 24, the top cap assembly 100 may further include a collector bar 160, the collector bar 160 is welded to the pole 150, and the collector bar 160 is located on a side of the insulating cover plate 110 facing away from the insulating member 130. As shown in fig. 20-22, a side of the insulating cover plate 110 facing away from the top cover plate 120 has a stopping portion 117, and the stopping portion 117 is used for supporting the current collecting bar 160. According to the cap assembly 100 for a battery according to the embodiment of the present invention, the collector bar 160 may be received at one side of the insulating cap plate 110 in a folded manner, and during the assembly of the cap assembly 100, the assembly force acts to press the collector bar 160, and by providing the stopping portion 117, not only the collector bar 160 may be supported, but also the collector bar 160 may be protected.
According to some embodiments of the present invention, the stop 117 may be elongated and the extension of the header 160 may be similar to the edge of the header 160, e.g., the header 160 may be an arc-shaped rib. Further, as shown in fig. 20, there are two stopping portions 117, and the two stopping portions 117 are symmetrically distributed about the mounting hole 111, so as to ensure the reliability and uniformity of supporting the collector bar 160, and to improve the mounting stability of the collector bar 160 and the pole 150. It should be noted that the shape of the stopping portion 117 is not limited to this, for example, in some embodiments, the stopping portion 117 is cylindrical, and the stopping portion 117 is a plurality of spaced apart portions.
According to some embodiments of the present invention, as shown in fig. 4, a gap 155 is provided between the inner circumferential wall of the through hole 121 and the outer circumferential wall of the body portion 151, and the gap 155 communicates with the seal cavity 154, that is, the seal cavity 154 has an opening at a position near the gap 155, and the seal cavity 154 communicates with the gap 155 through the opening. Thus, when the sealing member 156 is assembled into the sealing chamber 154, the sealing member 156 is pressed by the inner wall of the sealing chamber 154, and under the action of the pressing force, part of the structure of the sealing member 156 is deformed, and since the sealing chamber 154 is communicated with the gap 155, the sealing member 156 is deformed toward the inside of the gap 155, and at this time, part of the structure of the sealing member 156 can block the opening, thereby improving the sealing effect of the sealing member 156.
Thus, by constructing the seal cavity 154 by the pole 150, the compact 140, the insulator 130, the top cover plate 120 and the insulating cover plate 110, and the seal cavity 154 communicates with the gap 155 between the inner peripheral wall of the through hole 121 and the outer peripheral wall of the body portion 151, when the seal 156 is fitted into the seal cavity 154, a part of the structure of the seal 156 is deformed by the pressing force, and a part of the structure of the seal 156 can close the opening, whereby the sealing effect of the seal 156 can be enhanced.
According to some embodiments of the present invention, the cross-sectional area of the mounting hole 111 gradually decreases in the direction from the second rim 153 to the first rim 152. It will be appreciated that the cross-sectional area of the mounting hole 111 is gradually reduced, so that the peripheral wall of the mounting hole 111 can be configured as an inclined peripheral wall, and when the sealing member 156 is assembled into the mounting hole 111, the inclined peripheral wall has a pressing effect on the sealing member 156, so as to drive the sealing member 156 to deform toward the position having the gap 155, thereby improving the sealing effect of the sealing member 156.
In the example shown in fig. 13 and 6, the end of the stopper hole 141 facing the insulator 130 has a first chamfer 142. On one hand, the cutting stress during the processing of the pressing block 140 can be eliminated by utilizing the chamfer structure, so that the structural strength of the pressing block 140 can be improved; on the other hand, when the pole post 150 is assembled, the first chamfer 142 can be used to guide the pole post 150 to penetrate through the limiting hole 141, thereby playing a guiding role.
According to some embodiments of the utility model, as shown in fig. 13, the restraint aperture 141 may include a first aperture section 143, a second aperture section 144, and a third aperture section 145 that are in communication in series. Wherein the first rim 152 is positioned within the second bore section 144 and a portion of the body portion 151 is positioned within the third bore section 145. It will be appreciated that the second and third bore sections 144, 145 may be used to receive the post 150. The radial dimension of the first hole section 143 is greater than the radial dimension of the second hole section 144, when the end of the pole 150 located at the second hole section 144 needs to be welded, the inner space of the first hole section 143 can be used for accommodating solder, when the end of the pole 150 located at the second hole section 144 needs to be riveted, the end of the pole 150 deforms to generate a protrusion after being riveted, and the inner space of the first hole section 143 can be used for accommodating the protrusion.
Further, as shown in fig. 3, the surface of the first convex edge 152 facing away from the second convex edge 153 is flush with the inner bottom wall of the first hole section 143. Therefore, the pole 150 is convenient to weld or rivet, and the pole 150 does not occupy the inner space of the first hole section 143, so that the first hole section 143 can accommodate the solder or the riveting protrusion of the pole 150, and the solder is prevented from overflowing or protruding out of the surface of the pressing block 140.
According to some embodiments of the present invention, as shown in fig. 3, 13 and 17, a side of the pressing block 140 facing the insulating member 130 has a fitting protrusion 146, a side of the insulating member 130 facing the pressing block 140 has a fitting groove 135, and the fitting protrusion 146 is fitted with the fitting groove 135. The height of the fitting projection 146 protruding from the surface of the compact 140 is H1The depth of the embedding groove 135 is H2In which H is1＞H2. That is, the height of the fitting protrusion 146 is higher than that of the fitting groove 135, so that when the fitting protrusion 146 is fitted to the fitting groove 135, the fitting protrusion 146 will support the entire pressing block 140 to space the rest of the pressing block 140 from the insulating member 130, and under the assembling force of the top cap assembly 100, the fitting protrusion 146 will be in close contact with the inner bottom wall of the fitting groove 135, whereby the sealability between the pressing block 140 and the insulating member 130 can be improved. In order to prevent relative twisting between the pressing block 140 and the insulating member 130, in some embodiments, the fitting groove 135 is a square groove.
According to some embodiments of the present invention, as shown in fig. 14-16, a side of the insulating member 130 facing the top cover plate 120 has a boss 132, the positioning hole 131 penetrates through the boss 132, and the boss 132 penetrates through the through hole 121. Therefore, during assembly, the boss 132 can be inserted into the through hole 121 to achieve the pre-positioning function, so that the insulation member 130 and the top cover plate 120 can be assembled conveniently. Further, as shown in fig. 17, a second chamfer 133 is provided between the end surface of the boss 132 and the inner peripheral wall of the positioning hole 131, and a third chamfer 134 is provided between the end surface of the boss 132 and the outer peripheral wall of the boss 132.
It can be understood that, by providing the chamfer structure at the end corner in the radial direction of the boss 132, on one hand, the chamfer structure can be utilized to eliminate the cutting stress during the processing of the pressing block 140, so that the structural strength of the pressing block 140 can be improved; on the other hand, in the assembly, the boss 132 is guided into the through hole 121 by the guiding function of the third chamfer 134, and the guide pole 150 is inserted into the positioning hole 131 by the guiding function of the second chamfer 133, thereby performing the guiding function.
According to some embodiments of the present invention, as shown in fig. 25 and 26, the top cover plate 120 has an anti-rotation groove 122, and the through hole 121 is disposed in the anti-rotation groove 122. As shown in fig. 14-16, the peripheral wall of the insulating member 130 has anti-rotation flanges 136, and the anti-rotation flanges 136 are embedded in the anti-rotation grooves 122. In this way, when the insulator 130 is assembled with the top cover plate 120, the rotation preventing flanges 136 have a limiting effect on the insulator 130 in the circumferential direction of the through-holes 121, so that the insulator 130 can be prevented from rotating with respect to the top cover plate 120.
Further, as shown in fig. 14-16, the anti-rotation convex edge 136 includes a first anti-rotation edge 137 and a second anti-rotation edge 138, an included angle is formed between the first anti-rotation edge 137 and the second anti-rotation edge 138, the included angle may be 90 °, and the intersection of the first anti-rotation edge 137 and the second anti-rotation edge 138 is smoothly transited. Here, it should be noted that, as shown in fig. 16, when the insulating member 130 has a clockwise rotation tendency, the second anti-rotation edge 138 can be abutted against the inner peripheral wall of the anti-rotation groove 122, so as to play a role of anti-rotation; when the insulator 130 has a tendency of rotating counterclockwise, the first anti-rotation edge 137 can abut against the inner peripheral wall of the anti-rotation groove 122, so as to prevent rotation. In order to enhance the rotation prevention effect, in some examples, the rotation prevention rim 136 includes a plurality of rotation prevention rims 136, and the plurality of rotation prevention rims 136 are spaced apart in the circumferential direction of the insulator 130. Further, the anti-rotation groove 122 may be a square groove.
In some embodiments, as shown in FIGS. 25-26, in some embodiments, the top cover assembly 100 is provided with a blast hole 170 and a pour hole 172. It should be noted that the battery includes a top cover assembly, a battery cell and a cylindrical hard casing, one end of the hard casing is closed, the other end of the hard casing is open, the top cover assembly 100 can be disposed at the open end of the hard casing to seal the hard casing, and the battery cell is disposed inside the hard casing. The explosion-proof hole 170 penetrates through the top cover plate 120 and the insulating cover plate 110 in sequence, and the explosion-proof hole 170 is communicated with the interior of the hard shell; similarly, the pour hole 172 penetrates the top cover plate 120 and the insulating cover plate 110 in this order, and the pour hole 172 communicates with the inside of the hard case. In order to improve the safety of the battery, an explosion-proof valve 171 may be provided at the explosion-proof hole 170. In order to secure the sealing ring of the battery, the injection hole 172 may be sealed by the injection hole stopper 173 after the injection process is completed.
According to some embodiments of the present invention, the side of the insulating cover plate 110 facing away from the top cover plate 120 has a plurality of position-limiting ribs 112, and the plurality of position-limiting ribs 112 define position-limiting slots for limiting the installation position of the collector bar 160. It will be appreciated that the relative positions of the collector bar 160 and the post 150 may be positioned during welding of the collector bar 160 and the post 150, and that the assembly of the collector bar 160 may be facilitated by defining a detent with the spacing ribs 112 and positioning the collector bar 160 with the detent.
Here, the arrangement of the limiting ribs 112 is not specifically limited as long as it can limit the current collector 160, for example, as shown in fig. 19, fig. 20, and fig. 23, three limiting ribs 112 may be provided, which are a first limiting rib 113, a second limiting rib 114, and a third limiting rib 115, where the first limiting rib 113 and the second limiting rib 114 are parallel and opposite to each other, the current collector 160 is located between the first limiting rib 113 and the second limiting rib 114, between two parallel limiting ribs 112, the third limiting rib 115 is located at an end of the current collector 160, the third limiting rib 115 is parallel to an edge of the end of the current collector 160, and the third limiting rib 115 is perpendicular to the first limiting rib 113.
Further, in order to reinforce the structural strength of the insulating cover plate 110, as shown in fig. 19 and 20, a side of the insulating cover plate 110 facing away from the top cover plate 120 is provided with a plurality of reinforcing ribs 116. The plurality of ribs 116 are radially arranged around the mounting hole 111. Further, at least one of the reinforcing ribs 116 intersects with the position-limiting rib 112, so that at least one of the reinforcing ribs 116 and the position-limiting rib 112 form a crossed structure, thereby further improving the structural strength of the top cover plate 120 by using the crossed rib structure.
In order to improve the assembly stability of the pole 150, in some embodiments, the side of the insulating cover plate 110 facing away from the top cover plate 120 has a protection flange 118, and the protection flange 118 surrounds the outer periphery of the pole 150. This increases the contact area between the inner peripheral wall of the mounting hole 111 and the pole 150, and protects and supports the pole 150 with the protective flange 118, thereby preventing the pole 150 from being deformed or inclined. In addition, the protection flange 118 has a function of reinforcing the structural strength of the insulating cover plate 110, that is, the protection flange 118 may function as a reinforcing rib 116, so as to reinforce the structural strength of the insulating cover plate 110.
As shown in fig. 18, according to some embodiments of the present invention, a side of the insulating cover plate 110 facing away from the top cover plate 120 has a flange 119, the flange 119 is located at an edge of the insulating cover plate 110, and the flange 119 extends in a circumferential direction of the insulating cover plate 110. On the one hand, the folded edge 119 has an effect of reinforcing structural strength to the insulating cover plate 110; on the other hand, by providing the folded edge 119, a nearly closed receiving space can be configured by using the structure of the folded edge 119 to receive the collector bar 160, and at the same time, the collector bar 160 can be protected to prevent the collector bar 160 from being squeezed and collided.
To better accommodate the header 160, in some embodiments, as shown in fig. 21 and 22, the height of the flap 119 is greater than the height of the stop 117. Therefore, the height difference between the folded edge 119 and the stopping part 117 can define a reserved space, and part of the structure of the header 160 can be accommodated in the reserved space. It should be noted that when the collector bar 160 is assembled with the insulating cover plate 110, the collector bar 160 needs to be folded, and since there are different layers of folding, the thicknesses of different parts on the collector bar 160 are different, and in order to better accommodate the folded collector bar 160, in some embodiments, as shown in fig. 21 and 22, the height of the abutting portion 117 is higher than the height of the protection flange 118, so that the height difference between the abutting portion 117 and the protection flange 118 may also define a reserved space to accommodate the collector bar 160. For example, as shown in fig. 22, the height of the folded edge 119 is L1, the height of the stopping portion 117 is L2, and the height of the protection flange 118 is L3, where L1 > L2 > L3.
To better protect the header 160, in some embodiments, the height difference between the flap 119 and the protective flange 118 is greater than the thickness of the space occupied by the header 160. In this way, the header 160 can be completely received in the space defined by the flap 119 and the stop 117.
According to some embodiments of the present invention, as shown in fig. 28-29, the header 160 has a first fold 161 and a second fold 162, the first fold 161 and the second fold 162 being spaced apart in a length direction of the header 160, the first fold 161 and the second fold 162 each extending in a width direction of the header 160. The first and second folds 161, 162 divide the current collector 160 into a first portion 163, a second portion 164 and a third portion 165, the first portion 163 being bent towards one side of the second portion 164 and welded to the pole post 150, and the third portion 165 being bent towards the other side of the second portion 164 to be welded to the cell.
It should be noted that when the header 160 is folded, it is folded in two different directions, such that the first portion 163 and the third portion 165 can be spaced apart from each other by the second portion 164, such that the first portion 163 and the post 150 are welded, the effect of the welding process on the third portion 165 can be reduced; similarly, when the third portion 165 is welded to the tab of the battery cell, the effect of the welding process on the first portion 163 may also be reduced.
In addition, the length of the first portion 163 is greater than the length of the second portion 164 in the length direction of the header 160. Thus, when the collector bar 160 is folded, the partial structure of the collector bar 160 may be staggered, so that the overall thickness of the folded collector bar 160 may have a stepwise change, on one hand, it is convenient to accommodate the collector bar 160 at one side of the insulating member 130; on the other hand, it is also convenient to provide functional areas or avoidance structures on different parts. For example, as shown in fig. 28 and 30, the third portion 165 has an enlarged section 166, the width of the enlarged section 166 is larger than that of the second portion 164, the enlarged section 166 has an escape notch 167, the escape notch 167 is used for avoiding the explosion-proof valve, and the escape notch 167 penetrates through a part of the edge of the enlarged section 166; further, the enlarged section 166 has an escape hole 168, the escape hole 168 being opposite the end of the pole 150.
In some embodiments, as shown in fig. 28, at least one of the first fold 161 and the second fold 162 extends along a straight line, which facilitates folding of the header 160. It should be noted that when the header 160 is folded, because the material of the header 160 is malleable, the material is easy to accumulate at the position of the fold, and in some embodiments of the present invention, as shown in fig. 28, both ends of the first fold 161 have first grooves 1611; likewise, both ends of the second fold 162 have second grooves 1621.
The battery according to the embodiment of the utility model comprises a battery core, a cylindrical hard shell and the top cover assembly 100 for the battery. It should be noted that the battery may be a single battery, and a plurality of single batteries may be assembled to form a battery pack, an energy storage device, or a charging station. One end of the hard shell is closed, the other end is opened, the open end of the hard shell can be arranged on the top cover component 100 so as to seal the hard shell, and the battery cell is arranged inside the hard shell.
According to the battery of the embodiment of the utility model, the current collecting bar 160 can be accommodated at one side of the insulating cover plate 110 in a folding manner, the assembly force acts to press the current collecting bar 160 during the assembly process of the top cap assembly 100, and the stop part 117 is arranged to not only support the current collecting bar 160, but also protect the current collecting bar 160.
An energy storage device according to an embodiment of the present invention includes the battery as described above. According to the energy storage device of the embodiment of the utility model, the collector bar 160 can be accommodated at one side of the insulating cover plate 110 in a folding manner, during the assembly process of the top cover assembly 100, the assembly force presses the collector bar 160, and the stop part 117 is arranged, so that not only the collector bar 160 can be supported, but also the collector bar 160 can be protected.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A cap assembly for a battery, comprising:
a top cover plate;
the insulating cover plate and the top cover plate are stacked, one side, away from the top cover plate, of the insulating cover plate is provided with a stopping part, the insulating cover plate is provided with a mounting hole, and a pole column penetrates through the mounting hole;
the current collecting bar is positioned on one side, away from the top cover plate, of the insulating cover plate, and the abutting portion is used for supporting the current collecting bar.
2. The cap assembly for a battery of claim 1, wherein the stop portion is an arcuate rib.
3. The top cap assembly for a battery of claim 2, wherein there are two of the abutments, and the two abutments are symmetrically distributed about the mounting hole.
4. The cap assembly for a battery of claim 1, wherein the stop portion is cylindrical and the stop portion is a plurality of spaced apart portions.
5. The cap assembly for a battery of claim 1, further comprising:
the insulating part is provided with a positioning hole, the top cover plate is provided with a through hole, and the through hole, the mounting hole and the positioning hole are opposite;
a pressing block, the pressing block is arranged on one side of the insulating part, which is far away from the top cover plate, a limiting hole is arranged on the pressing block, the limiting hole is opposite to the positioning hole,
the pole column comprises a main body part, a first convex edge and a second convex edge, the first convex edge is positioned at the edge of one end of the main body part, the first convex edge protrudes out of the peripheral wall surface of the main body part, the first convex edge extends along the circumferential direction of the main body part, the second convex edge is positioned at the edge of the other end of the main body part, the second convex edge protrudes out of the peripheral wall surface of the main body part, and the second convex edge extends along the circumferential direction of the main body part,
spacing hole is including the first hole section, second hole section and the third hole section that communicate in proper order, first chimb is located in the second hole section, the part of main part is located in the third hole section, the radial dimension of first hole section is greater than the radial dimension of second hole section.
6. The top cap assembly for a battery of claim 5, wherein a surface of the first rim facing away from the second rim is flush with an inner bottom wall of the first aperture section.
7. The top cap assembly for a battery according to claim 5, wherein a side of the pressing block facing the insulating member has a fitting protrusion, and a side of the insulating member facing the pressing block has a fitting groove, the fitting protrusion being engaged with the fitting groove.
8. The top cap assembly for a battery according to claim 7, wherein the height of the fitting protrusion from the surface of the pressing block is H1The depth of the embedding groove is H2In which H is1＞H2。
9. A battery comprising the cap assembly for a battery according to any one of claims 1 to 8.
10. An energy storage device comprising a plurality of the cells of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122307701.8U CN215816080U (en) | 2021-09-23 | 2021-09-23 | A top cap subassembly, battery and energy memory for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122307701.8U CN215816080U (en) | 2021-09-23 | 2021-09-23 | A top cap subassembly, battery and energy memory for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816080U true CN215816080U (en) | 2022-02-11 |
Family
ID=80165754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122307701.8U Active CN215816080U (en) | 2021-09-23 | 2021-09-23 | A top cap subassembly, battery and energy memory for battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215816080U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116169304A (en) * | 2023-03-30 | 2023-05-26 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage device, electrical equipment and household energy storage system |
| CN116454499A (en) * | 2023-04-28 | 2023-07-18 | 厦门海辰储能科技股份有限公司 | Battery end cover assembly and single battery |
| CN116470240A (en) * | 2023-04-28 | 2023-07-21 | 厦门海辰储能科技股份有限公司 | End cap assembly, energy storage device and electrical equipment |
| CN116470200A (en) * | 2023-04-28 | 2023-07-21 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage device and electrical equipment |
| CN116505155A (en) * | 2023-06-29 | 2023-07-28 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electrical equipment |
| CN116581443A (en) * | 2023-07-14 | 2023-08-11 | 深圳海辰储能控制技术有限公司 | Energy storage device and electric equipment |
| WO2024050953A1 (en) * | 2022-09-09 | 2024-03-14 | 湖北亿纬动力有限公司 | Cover plate structure and battery |
| WO2024066133A1 (en) * | 2022-09-28 | 2024-04-04 | 厦门海辰储能科技股份有限公司 | Cell battery, battery pack, and electrical device |
-
2021
- 2021-09-23 CN CN202122307701.8U patent/CN215816080U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024050953A1 (en) * | 2022-09-09 | 2024-03-14 | 湖北亿纬动力有限公司 | Cover plate structure and battery |
| WO2024066133A1 (en) * | 2022-09-28 | 2024-04-04 | 厦门海辰储能科技股份有限公司 | Cell battery, battery pack, and electrical device |
| CN116169304A (en) * | 2023-03-30 | 2023-05-26 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage device, electrical equipment and household energy storage system |
| CN116454499A (en) * | 2023-04-28 | 2023-07-18 | 厦门海辰储能科技股份有限公司 | Battery end cover assembly and single battery |
| CN116470240A (en) * | 2023-04-28 | 2023-07-21 | 厦门海辰储能科技股份有限公司 | End cap assembly, energy storage device and electrical equipment |
| CN116470200A (en) * | 2023-04-28 | 2023-07-21 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage device and electrical equipment |
| WO2024222065A1 (en) * | 2023-04-28 | 2024-10-31 | 厦门海辰储能科技股份有限公司 | End cover assembly, energy storage apparatus, and electric device |
| CN116505155A (en) * | 2023-06-29 | 2023-07-28 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electrical equipment |
| CN116505155B (en) * | 2023-06-29 | 2023-12-26 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116581443A (en) * | 2023-07-14 | 2023-08-11 | 深圳海辰储能控制技术有限公司 | Energy storage device and electric equipment |
| CN116581443B (en) * | 2023-07-14 | 2023-09-22 | 深圳海辰储能控制技术有限公司 | Energy storage devices and electrical equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215816080U (en) | A top cap subassembly, battery and energy memory for battery | |
| CN215816069U (en) | A top cap subassembly, battery and energy memory for battery | |
| CN216389659U (en) | A top cap subassembly, battery and energy memory for battery | |
| CN113839128A (en) | A top cap subassembly, battery and energy memory for battery | |
| CN215816083U (en) | A top cap subassembly, battery and energy memory for battery | |
| US11721861B2 (en) | Top cover assembly for battery, battery, and energy storage device | |
| EP3916891B1 (en) | Battery, battery module and electric equipment | |
| CN215816066U (en) | A top cap subassembly, battery and energy memory for battery | |
| CN215816082U (en) | A top cap subassembly, battery and energy memory for battery | |
| CN215816079U (en) | A top cap subassembly, battery and energy memory for battery | |
| CN100495800C (en) | Secondary battery | |
| JP6398155B2 (en) | Secondary battery | |
| JP7493010B2 (en) | Battery canister | |
| CN216120509U (en) | Battery cell, battery and consumer | |
| CN217158358U (en) | Top cover assembly and single battery | |
| CN215816275U (en) | Current collecting bar, top cover assembly for battery and battery | |
| WO2024212695A1 (en) | End cover assembly, battery, and energy storage device | |
| CN221239758U (en) | Cylindrical battery, battery pack and electronic equipment | |
| CN116670897B (en) | Battery cell, manufacturing method and manufacturing system thereof, battery and electricity utilization device | |
| CN219626837U (en) | Battery cell | |
| CN115425341A (en) | Winding type button battery with ruffle structure | |
| CN220172256U (en) | Cylindrical battery convenient to accurate equipment | |
| CN223927462U (en) | Battery casing and battery | |
| CN221530022U (en) | Secondary batteries and battery packs | |
| CN214753921U (en) | Lithium battery with reliable packaging structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 361100 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Province Patentee after: Xiamen Haichen Energy Storage Technology Co.,Ltd. Address before: Room 201-1, Comprehensive Building 5#, No. 11, Butang Middle Road, Industrial Base, Xiamen Torch High-tech Zone (Tongxiang), Xiamen City, Fujian Province, 361012 Patentee before: Xiamen Haichen New Energy Technology Co.,Ltd. |