CN214957272U - Anti-drop fusing structure of secondary battery - Google Patents
Anti-drop fusing structure of secondary battery Download PDFInfo
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- CN214957272U CN214957272U CN202120854150.4U CN202120854150U CN214957272U CN 214957272 U CN214957272 U CN 214957272U CN 202120854150 U CN202120854150 U CN 202120854150U CN 214957272 U CN214957272 U CN 214957272U
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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 relates to the technical field of the fusing structure of a battery, and discloses an anti-drop fusing structure of a secondary battery, which comprises a fuse link, wherein the fuse link is connected with a rubber coating layer, a plurality of connecting holes are penetrated through the fuse link, and a plurality of connecting columns connected with the connecting holes are arranged on the side surface of the rubber coating layer; the middle part of the fuse link is provided with a fusing part. Connecting the connecting column on the encapsulating layer to the connecting hole of the fuse link, so that the encapsulating layer and the fuse link form a mutual connection relationship, and the fuse link is provided with a fusing part; like this, when secondary battery's circuit current or voltage were too big, will blow from the position of fusing part on the fuse link earlier, cut off secondary battery's circuit in order to realize the purpose of protection, simultaneously when the fuse link from fusing part disconnection back, the disconnected two parts fuse link still connects respectively on the rubber coating layer, effectively prevents that the fuse link disconnection from dropping on battery inside components and parts or electric core, and lead to the secondary contact to damage.
Description
Technical Field
The utility model relates to a fusing technical field of battery particularly, relates to secondary battery's anti-drop fusing structure.
Background
A Rechargeable battery (also called as a Rechargeable battery or a storage battery) refers to a battery that can be continuously used after the battery is discharged by activating an active material in a charging manner, and in daily use, the Rechargeable battery inevitably has an unexpected situation that internal components or a battery cell are burned when the current or voltage is too large, thereby affecting the normal use of the Rechargeable battery.
The existing secondary battery is usually protected by using a fuse link, and when the current or the voltage is overlarge, the fuse link is fused to cut off a circuit to protect internal components or a battery core of the secondary battery; the fuse link of the existing secondary battery can be coated with rubber at the fusing position of the fuse link, but the problem that the rubber coating is easy to fall off after the fuse link is fused and the fuse link can also fall on a component or an electric core, so that secondary contact can be easily caused and secondary damage can be caused to the component or the electric core.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a secondary battery's anti-drop fusing structure aims at solving prior art, can drop on components and parts or electric core after secondary battery's fuse link fuses, leads to the secondary contact, causes the problem of secondary damage to components and parts or electric core.
The utility model discloses a realize like this, secondary cell's anti-drop fusing structure, including the fuse-link, the fuse-link is connected with the rubber coating layer, it has a plurality of connecting holes to run through on the fuse-link, the side of rubber coating layer is arranged with a plurality of spliced poles of being connected with the connecting hole;
and the middle part of the fuse link is provided with a fusing part.
Furthermore, two side sides of the fusing part are recessed with edge openings;
the connection holes are arranged at both end sides of the fusing part and are close to the side edges of the side openings.
Further, a plurality of grooves are arranged on the side surface of the fuse link.
Furthermore, the encapsulating layer comprises a first encapsulating layer and at least one second encapsulating layer, and the first encapsulating layer and the second encapsulating layer are respectively connected to two side surfaces of the fuse link;
the connecting column is arranged on one side surface of the first rubber coating layer facing the fuse link.
Furthermore, a connecting column on the first adhesive coating layer penetrates through the connecting hole and is connected with a side surface of the second adhesive coating layer facing the fuse link.
Further, the first adhesive covering layer and the second adhesive covering layer are of sheet structures, and the first adhesive covering layer and the second adhesive covering layer are symmetrically arranged with the fuse link as a center and form a covering or clamping connection relation with the fuse link.
Further, the rubber coating layer is integrated into one piece or inlay the combination setting, the rubber coating layer have with fuse-link assorted jack, the lower floor of rubber coating layer is established to the type of calligraphy structure, the upper strata of rubber coating layer is established to the type of calligraphy structure, just the length of lower floor is longer than the length of upper strata.
Further, the medial surface of lower floor have with the lug of the limit mouth phase-match joint of fuse-link, the spliced pole is located the medial surface of lower floor, the fuse-link is followed the jack passes to cut to the limit mouth with lug looks joint, just the spliced pole cross-under the connecting hole.
Furthermore, the jack is formed by extending and arranging from the end part to the middle part of the encapsulating layer, the fuse link is inserted from the jack at the end part of the encapsulating layer, and the fuse link and the encapsulating layer form an internal and external sleeved connection relation.
Furthermore, the connecting holes comprise two semicircular holes which are mutually isolated, an interlayer is arranged between the two semicircular holes at intervals, the connecting column is provided with a middle groove matched with the interlayer, and the connecting column is connected with the connecting holes in a penetrating mode to form a forked connection relation.
Compared with the prior art, the utility model provides an anti-drop fusing structure of secondary battery, including the fuse link, the fuse link is connected with the rubber coating layer, through on the spliced pole of rubber coating layer cross-under to the connecting hole of fuse link, and then make rubber coating layer and fuse link form interconnect relation, and the fuse link is equipped with the fusing portion; like this, when secondary battery's circuit current or voltage were too big, will blow from the position of fusing part on the fuse link earlier, cut off secondary battery's circuit in order to realize the purpose of protection, simultaneously when the fuse link from fusing part disconnection back, the disconnected two parts fuse link still connects respectively on the rubber coating layer, effectively prevents that the fuse link disconnection from dropping on battery inside components and parts or electric core, and lead to the secondary contact to damage.
Drawings
Fig. 1 is an exploded view of a fuse link and an encapsulating layer according to a first embodiment of the present invention;
fig. 2 is another exploded view of the fuse link and the encapsulating layer according to the first embodiment of the present invention;
fig. 3 is an exploded view of the fuse link and the encapsulating layer according to a second embodiment of the present invention;
fig. 4 is a further exploded view of the fuse link and the encapsulating layer provided in accordance with the second embodiment of the present invention;
fig. 5 is a sectional view of the encapsulating layer according to the second embodiment of the present invention;
fig. 6 is a schematic layout view of a fusing portion and a side opening in a fuse link according to an embodiment of the present invention;
fig. 7 is a schematic plan view of a semicircular hole of a connection hole and a partition layer according to an embodiment of the present invention;
fig. 8 is a schematic view of a planar structure of the connecting column provided by the embodiment of the present invention.
In the figure: 100-fuse link, 101-connecting hole, 1011-semicircular hole, 1012-interlayer, 102-fusing part, 1021-edge opening, 103-groove, 200-encapsulating layer, 201-first encapsulating layer, 2011-connecting column, 202-second encapsulating layer, 203-jack, 204-upper layer, 2041-bump, 205-lower layer and 206-middle groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc., indicating directions or positional relationships based on those shown in the drawings, it is only for convenience of description and simplicity of description, but not for indicating or implying that the indicated device or element must have a specific direction, be constructed in a specific direction, and operate, and therefore the terms describing the positional relationships in the drawings are used only for illustrative purposes and are not to be construed as limitations of the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-8, the preferred embodiment of the present invention is shown.
The anti-drop fusing structure of the secondary battery comprises a fuse link 100, wherein the fuse link 100 is made of metal, has good conductive performance and is electrically connected with a circuit of the secondary battery; the fuse link 100 is connected with an encapsulating layer 200, and the encapsulating layer 200 is made of soft or hard plastic material.
The fuse link 100 is penetrated with a plurality of connecting holes 101, the connecting holes 101 formed in the fuse link 100 are round, square or oval, and can be selected according to requirements in practical application, and the connecting holes 101 formed in the fuse link 100 are preferably four, the side surface of the encapsulating layer 200 is provided with a plurality of connecting columns connected with the connecting holes 101, specifically, the connecting columns are connected to the side surface of the encapsulating layer 200 in a vertical mode, the connecting columns can be integrally formed with the encapsulating layer 200 or connected in a bonding or threaded connection mode, one end of each connecting column is vertically connected with the side surface of the encapsulating layer 200, the other end extends to a certain height in the direction far away from the side surface of the encapsulating layer 200, one end of each connecting column far away from the encapsulating layer 200 is provided with a chuck with a diameter larger than that of the connecting column, the chuck is preferably made of soft plastic, when the connecting column passes through the connecting holes 101, the clamping head can play a role in clamping or blocking the anti-dropping.
The fuse link 100 is provided at a middle portion thereof with a fusing part 102, the fusing part 102 being a portion where the fuse link 100 is preferentially fused, and a width of the fusing part 102 as a whole being smaller than widths of both ends of the fuse link 100, so that the fusing part 102 is preferentially heated and blown when a current or voltage passing through the fuse link 100 is excessively large.
The connecting column on the encapsulating layer 200 is connected to the connecting hole 101 of the fuse link 100 in a penetrating manner, so that the encapsulating layer 200 and the fuse link 100 are connected with each other, and the fuse link 100 is provided with a fusing part 102; therefore, when the circuit current or voltage of the secondary battery is too large, the fuse link 100 is blown from the position of the fusing part 102 to cut off the circuit of the secondary battery so as to achieve the purpose of protection, and meanwhile, after the fuse link 100 is disconnected from the fusing part 102, the two disconnected fuse links 100 are also respectively hung on the encapsulating layer 200, so that the fuse link 100 is effectively prevented from being disconnected and falling onto the internal components or the electric core of the battery, and the secondary contact damage is caused.
Two side of the fuse part 102 are concavely formed with edge openings 1021, the edge openings 1021 are in a U shape or a semicircular shape, and the like, specifically, the edge openings 1021 are symmetrically arranged at two sides of the fuse part 102, and the edge openings 1021 at two sides of the fuse part 102 are both inwards concave to a certain depth towards the middle of the fuse part 102. The connection holes 101 are disposed at both end sides of the fusing part 102 and near the sides of the edge opening 1021, and particularly, when the number of the connection holes 101 is set to four, two connection holes are disposed at both sides near the edge opening 1021, respectively, and the connection holes 101 at both sides are symmetrically disposed centering on the edge opening 1021.
In this way, through the reasonable arrangement of the connecting holes 101 on the fuse link 100 and the arrangement of the position relation between the fusing part 102 and the connecting holes 101, the connection between the fuse link 100 and the encapsulating layer 200 can be effectively optimized, so that the stability that the fuse link 100 can be continuously connected with the encapsulating layer 200 after being fused is improved, and the fuse link 100 after being fused falls to cause short circuit and damage components or cells again is avoided.
The side surface of the fuse link 100 is provided with a plurality of grooves 103, the arranged grooves 103 are arranged on the side surface of the fuse link 100 in a rectangular array or a circular array, and the intervals, the depths or the calibers of the grooves 103 are in equal relation; preferably, the grooves 103 are disposed in one or both sections of the fuse link 100, and the grooves 103 disposed in the same section of the fuse link 100 may be disposed in two arrays.
First embodiment
Referring to fig. 1-2, the encapsulating layer 200 includes a first encapsulating layer 201 and at least a second encapsulating layer 202, the first encapsulating layer 201 and the second encapsulating layer 202 are respectively connected to two side surfaces of the fuse link 100, specifically, the fuse link 100 is disposed between the first encapsulating layer 201 and the second encapsulating layer 202, and the fuse link 100, the first encapsulating layer 201 and the second encapsulating layer 202 are arranged in parallel, so as to achieve a better connecting effect between them and facilitate assembly.
First glue-wrapping layer 201 is located towards the side of fuse-link 100 to the spliced pole, when practical application, pass the connecting hole 101 on the fuse-link 100 through the spliced pole on with first glue-wrapping layer 201, like this, just reached the firm connection between first glue-wrapping layer 201 and the fuse-link 100, the spliced pole passes behind connecting hole 101, continue to extend and be connected to second glue-wrapping layer 202 towards the side of fuse-link 100, like this, reach the relation of mutual firm connection between just being equivalent to second glue-wrapping layer 202 and the fuse-link 100.
Therefore, through the firm connection of the connecting column and the connecting hole 101, the effect of the combined assembly between the fuse link 100 and the first adhesive coating layer 201 and the second adhesive coating is realized on the whole, and the connecting relation between the connecting column and the connecting hole 101 can be conveniently disassembled and assembled.
As a preferred embodiment, the first encapsulating layer 201 and the second encapsulating layer are preferably set to be rectangular or circular sheet structures, and of course, the first encapsulating layer 201 and the second encapsulating layer 202 which are in other shapes and can be assembled corresponding to the fuse link 100 may also be adopted, and the first encapsulating layer 201 and the second encapsulating layer 202 are symmetrically arranged with the fuse link 100 as a center, so that the stable assembling relationship between the fuse link 100 and the first encapsulating layer 201 and the second encapsulating layer 202 is further strengthened, in this way, the first encapsulating layer 201 and the second encapsulating layer 202 respectively encapsulate or clamp two side surfaces of the fuse link 100, and the encapsulating or clamping assembling effect of the first encapsulating layer 201 and the second encapsulating layer 202 on the fuse link 100 is realized.
Second embodiment
Referring to fig. 3-5, the same parts as those in the first embodiment are not repeated, the encapsulating layer 200 of the present embodiment is integrally formed or embedded and combined, and the specific forming structure can be formed by opening the mold according to practical application; specifically, the encapsulating layer 200 has an insertion hole 203 matched with the fuse link 100, that is, the fuse link 100 can be inserted into the insertion hole 203 formed in the encapsulating layer 200, so as to realize the connection relationship between the fuse link 100 and the encapsulating layer 200.
Encapsulating layer 200 is including upper strata 204 and lower floor 205, wherein, encapsulating layer 200's lower floor 205 is established to the type structure of protruding font, look on the whole, encapsulating layer 200's lower floor 205 demonstrates that one end is less, the great shape structure of one end, and encapsulating layer 200's upper strata 204 is established to the type structure of recessed font, and the length of lower floor 205 is good at upper strata 204, encapsulating layer 200's upper strata 204's the type structure of recessed font corresponds the extension section direction setting of lower floor 205, the extension section of lower floor 205 is set up correspondingly, can play the effect of bearing to the part after fuse-link 100 fuses, further avoid the problem that fuse-link 100 fuses and then drops.
In this embodiment, through optimizing the overall structure of the encapsulating layer 200 into integrated into one piece's upper and lower two-layer to set up the jack 203 between upper 204 and lower layer 205, make things convenient for among the fuse-link 100 can direct cross-under encapsulating layer 200 with this, improve the assembly connection relation between fuse-link 100 and the encapsulating layer 200, and made the optimal design to the structure of upper 204 and lower layer 205 respectively, saved the manufacturing cost of encapsulating layer 200 on the whole.
In a preferred embodiment, the inner side of the lower layer 205 is provided with a protrusion 2041 and the above-mentioned connection hole 101, wherein
The arranged bump 2041 is matched and clamped with the edge 1021 of the fuse link 100, and the fuse link 100 penetrates through the edge 1021 from the jack 203 and is clamped with the bump 2041, so that after the fuse link 100 is inserted through the jack 203 of the encapsulating layer 200, the edge 1021 of the fuse link 100 is clamped on the bump 2041, the assembly position of the fuse link 100 is limited, the assembly efficiency between the fuse link 100 and the encapsulating layer 200 is improved, and the problem that the fuse link 100 slides back after penetrating through the jack 203 is certainly solved;
the connecting column is disposed on the inner side surface of the lower layer 205, specifically, the connecting hole 101 is disposed on the same surface of the protrusion 2041 and beside the protrusion 2041, and when the fuse link 100 is inserted through the insertion hole 203 of the encapsulating layer 200, the connecting column passes through the connecting hole 101 of the fuse link 100, so as to achieve a stable connection relationship between the fuse link 100 and the encapsulating layer 200.
Therefore, on the whole, through set up lug 2041 and spliced pole at the medial surface of rubber coating 200, make things convenient for fuse-link 100 to pass behind the jack 203 of rubber coating 200, can carry out firm connection and spacing each other with rubber coating 200, improve fuse-link 100 and rubber coating 200's the degree of stability of being connected, and assembly efficiency.
The jack 203 of the encapsulating layer 200 is optimally designed in such a way that the jack 203 extends from the end part to the middle part of the encapsulating layer 200, the jack 203 can determine the opening depth according to the overall length of the upper layer 204 and the lower layer 205 of the encapsulating layer 200, and definitely, the jack 203 transversely penetrates through the middle part of the encapsulating layer 200, so that the fuse link 100 can be completely penetrated and connected with the whole encapsulating layer 200; the fuse link 100 is inserted from the insertion hole 203 at the end of the encapsulating layer 200, and the fuse link 100 and the encapsulating layer 200 form an internal and external sleeved connection relationship, so that the connection stability between the fuse link 100 and the encapsulating layer 200 is further improved, and the problem that fragments generated in the fusing process of the fuse link 100 fall off can be prevented.
Referring to fig. 7-8, as a preferred embodiment, in practical applications, the connection hole 101 may be provided as two mutually isolated semicircular holes 1011, the two semicircular holes 1011 are symmetrically and equally disposed, and a spacer 1012 is disposed between the two semicircular holes 1011, and the spacer 1012 may completely separate or incompletely separate the two semicircular holes 1011.
Correspondingly, the connecting column is provided with a middle groove 206 matched with the interlayer 1012, that is, the height and the width of the middle groove 206 are respectively greater than the thickness and the width of the interlayer 1012, or the interlayer 1012 and the middle groove 206 are in an interference fit connection relationship; thus, when the connection column is to pass through the connection hole 101, the partition 1012 can be inserted into the middle groove 206, so that the connection column passes through the connection hole 101 to form a forked connection relationship, and the connection relationship between the connection column and the connection hole 101 can be further strengthened through the optimized design of the connection hole 101 and the connection column.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The anti-drop fusing structure of the secondary battery is characterized by comprising a fuse link, wherein the fuse link is connected with an encapsulating layer, a plurality of connecting holes penetrate through the fuse link, and a plurality of connecting columns connected with the connecting holes are arranged on the side surface of the encapsulating layer;
and the middle part of the fuse link is provided with a fusing part.
2. The falling-off prevention fusing structure of a secondary battery according to claim 1, wherein both side sides of the fusing part are recessed with rim openings;
the connection holes are arranged at both end sides of the fusing part and are close to the side edges of the side openings.
3. The falling-off prevention fusing structure of a secondary battery according to claim 2, wherein a plurality of grooves are disposed at a side surface of the fuse piece.
4. The anti-drop fusing structure of the secondary battery according to any one of claims 1 to 3, wherein the encapsulating layer comprises a first encapsulating layer and at least one second encapsulating layer, and the first encapsulating layer and the second encapsulating layer are respectively connected to both side surfaces of the fuse link;
the connecting column is arranged on one side surface of the first rubber coating layer facing the fuse link.
5. The anti-drop fusing structure of a secondary battery according to claim 4, wherein the connection post on the first encapsulant layer passes through the connection hole and connects a side of the second encapsulant layer facing the fuse link.
6. The anti-drop fusing structure of a secondary battery according to claim 5, wherein the first and second encapsulant layers are provided in a sheet-like structure, are symmetrically arranged with the fuse link as a center, and form a wrapping or clamping connection relationship with the fuse link.
7. The anti-drop fusing structure of a secondary battery according to any one of claims 1 to 3, wherein the encapsulating layer is integrally formed or embedded and combined, the encapsulating layer has insertion holes matched with the fuse pieces, the lower layer of the encapsulating layer is provided with a convex structure, the upper layer of the encapsulating layer is provided with a concave structure, and the length of the lower layer is longer than that of the upper layer.
8. The anti-drop fusing structure of the secondary battery according to claim 7, wherein the inner side surface of the lower layer has a protrusion that is in matching clamping with the edge opening of the fuse link, the connection post is disposed on the inner side surface of the lower layer, the fuse link penetrates through the insertion hole to be cut to the edge opening and is in clamping with the protrusion, and the connection post penetrates through the connection hole.
9. The anti-drop fusing structure of a secondary battery according to claim 8, wherein the insertion hole is formed by extending from the end portion to the middle portion of the encapsulating layer, the fuse link is inserted from the insertion hole at the end portion of the encapsulating layer, and the fuse link and the encapsulating layer form an internally and externally sleeved connection relationship.
10. The structure of any one of claims 1 to 3, wherein the connection hole comprises two semicircular holes separated from each other, a partition is provided between the two semicircular holes, the connection post is provided with a middle groove matched with the partition, and the connection post is connected to the connection hole in a penetrating manner to form a forked connection relationship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120854150.4U CN214957272U (en) | 2021-04-23 | 2021-04-23 | Anti-drop fusing structure of secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120854150.4U CN214957272U (en) | 2021-04-23 | 2021-04-23 | Anti-drop fusing structure of secondary battery |
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| CN214957272U true CN214957272U (en) | 2021-11-30 |
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| CN202120854150.4U Active CN214957272U (en) | 2021-04-23 | 2021-04-23 | Anti-drop fusing structure of secondary battery |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114865181A (en) * | 2022-04-08 | 2022-08-05 | 浙江锦泰电子有限公司 | Cover plate assembly with battery aluminum switching piece |
| WO2023141980A1 (en) * | 2022-01-28 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Connection assembly, battery cell, battery, and electric device |
| WO2023201474A1 (en) * | 2022-04-18 | 2023-10-26 | 宁德时代新能源科技股份有限公司 | Adapter assembly, battery cell, battery, and electric device |
| WO2024066054A1 (en) * | 2022-09-26 | 2024-04-04 | 江苏时代新能源科技有限公司 | Adapter sheet, battery cell, battery, and electrical apparatus |
-
2021
- 2021-04-23 CN CN202120854150.4U patent/CN214957272U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023141980A1 (en) * | 2022-01-28 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Connection assembly, battery cell, battery, and electric device |
| CN114865181A (en) * | 2022-04-08 | 2022-08-05 | 浙江锦泰电子有限公司 | Cover plate assembly with battery aluminum switching piece |
| WO2023201474A1 (en) * | 2022-04-18 | 2023-10-26 | 宁德时代新能源科技股份有限公司 | Adapter assembly, battery cell, battery, and electric device |
| WO2024066054A1 (en) * | 2022-09-26 | 2024-04-04 | 江苏时代新能源科技有限公司 | Adapter sheet, battery cell, battery, and electrical apparatus |
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