CN212323089U - Glue-free type storage battery terminal sealing structure - Google Patents

Glue-free type storage battery terminal sealing structure Download PDF

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Publication number
CN212323089U
CN212323089U CN202020834312.3U CN202020834312U CN212323089U CN 212323089 U CN212323089 U CN 212323089U CN 202020834312 U CN202020834312 U CN 202020834312U CN 212323089 U CN212323089 U CN 212323089U
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Prior art keywords
terminal
connecting sleeve
glue
sealing structure
battery terminal
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CN202020834312.3U
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Chinese (zh)
Inventor
沈旭培
刘海凤
宋文龙
王增君
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Tianneng Battery Group Co Ltd
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Tianneng Battery Group Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Connection Of Batteries Or Terminals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The utility model discloses a no glue formula battery terminal seal structure, including well lid and terminal, cover the terminal hole that supplies the terminal to wear out in, its characterized in that: the periphery of the terminal is coated with a connecting sleeve penetrating through the terminal hole, one end of the connecting sleeve, which is positioned at the inner side of the battery, is provided with a saddle, and a sealing ring is arranged at the periphery of the connecting sleeve and between the saddle and the middle cover; the adapter sleeve is located battery outside one end and has the screw thread section, the screw thread section has the external screw thread, the periphery of screw thread section be equipped with screw thread section screw-thread fit, support the gland nut of capping face in, the utility model discloses the installation is swift convenient, improves sealing performance, need not to use glue sealed, reduces the energy consumption, improves production efficiency.

Description

Glue-free type storage battery terminal sealing structure
Technical Field
The utility model relates to a battery technology field, concretely relates to no glue formula battery terminal seal structure.
Background
The terminal is an important part of the storage battery and plays a role in connecting external equipment to conduct current. For the sake of beauty and reliability of connection, the terminal post of the existing storage battery is composed of a copper core and a lead base, and is matched with a terminal groove of a middle cover, and glue base glue and color glue are applied for sealing. The curing time is needed in the implementation process, the energy consumption is high, the production efficiency is low, and meanwhile, the sealing depth and the glue performance of the glue have great influence on the sealing performance of the glue.
In addition, the battery terminals also experience various damaging external influences during use of the battery:
1. the force generated by the deformation of the plate. When the storage battery is used, the polar plate expands and grows to generate upward thrust to push the polar column to move, and the force is sometimes large, so that the bonding effect between the polar column and the sealant is damaged;
2. the pole is also subject to corrosion by the electrolyte in the battery. The electrolyte can be upwards diffused along micropores on the surface of the pole under the pushing action of the surface force, if a fine gap exists between the sealing glue and the pole, the electrolyte enters and corrodes the pole, and the damage can also cause the bonding failure between the pole and the sealing glue;
3. when the current passes through the pole, the pole generates heat and the temperature rises. The thermal expansion coefficients of various embedded poles of common storage battery pole terminals such as aluminum alloy, copper alloy, steel alloy, nickel alloy, lead alloy and the like are different from the thermal expansion coefficient of epoxy resin glue, and the expansion and contraction between the two phases are asynchronous, so that cracks can be generated between the poles and the sealant, and the electrolyte is easy to overflow due to the failure of sealing.
The patent specification with the application number of 201822088534.0 discloses a storage battery pole terminal sealing structure which comprises a storage battery middle cover, a lead sleeve, a pole and a storage battery terminal, wherein a rubber groove is formed in the storage battery middle cover, a first through hole is formed in the bottom of the rubber groove, the lead sleeve is embedded into the first through hole in a sealing mode, and the top of the lead sleeve is higher than the first through hole to form a first layer of seal; a second through hole is formed in the lead sleeve, one end of the pole column penetrates through the second through hole and is higher than the upper surface of the lead sleeve, the storage battery terminal is installed in the rubber groove and is in contact with the upper part of the lead sleeve, and the pole column, the lead sleeve and the storage battery terminal are integrated into a whole through a welding gun to form a second layer of seal; and injecting sealant into other gaps in the glue groove to form a third layer of seal.
The above solution designs a three-layer seal, which can achieve a better sealing effect, but still has the problems mentioned above.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a no glue formula battery terminal seal structure, the installation is swift convenient, improves sealing performance, need not to use glue sealed, reduces the energy consumption.
A terminal sealing structure of a glue-free storage battery comprises a middle cover and a terminal, wherein a terminal hole for the terminal to penetrate out is formed in the middle cover, a connecting sleeve penetrating through the terminal hole is coated on the periphery of the terminal, a supporting platform is arranged at one end, located on the inner side of a battery, of the connecting sleeve, and a sealing ring is arranged on the periphery of the connecting sleeve and located between the supporting platform and the middle cover; the connecting sleeve is located at one end of the outer side of the battery and is provided with a threaded section, the threaded section is provided with an external thread, and the periphery of the threaded section is provided with a compression nut which is in threaded fit with the threaded section and abuts against the top surface of the middle cover.
The utility model discloses a adapter sleeve and the gland nut of setting on the adapter sleeve cover the terminal locking in, realize the sealed of terminal through the pressure seal circle in the locking process, and this seal structure installation is swiftly convenient, has replaced traditional gluey mode of sealing, lowers the energy consumption, improves the leakproofness.
Preferably, the outer peripheral surface of the terminal is provided with an annular groove, the connecting sleeve is provided with an annular bulge matched with the annular groove, and the annular groove is matched with the annular bulge to effectively prevent the connecting sleeve from falling off.
Further preferably, the number of the annular grooves is 2-6, and the annular grooves are arranged at intervals along the terminal.
Further preferably, the width of the annular groove is 1-5mm, the depth of the annular groove is 1-5mm, the coating strength of the connecting sleeve and the terminal is enhanced, and falling is avoided.
Preferably, the cross section of the sealing ring is square, and the middle cover is provided with a first convex ring which presses the top surface of the sealing ring after assembly; the top surface of the supporting table is provided with a second convex ring which extrudes the bottom surface of the sealing ring after assembly, and the first convex ring and the second convex ring are used for compressing the sealing ring, so that the sealing ring is prevented from shifting, and meanwhile, the sealing effect is improved.
Further preferably, the number of the first convex rings is one, the number of the second convex rings is two, and the position of the first convex ring corresponds to the position between the two second convex rings.
Further preferably, the cross sections of the first convex ring and the second convex ring are both triangular, so that the stability of the position of the sealing ring can be further ensured, and the sealing effect is better.
Preferably, the top surface of the compression nut is provided with a wrench action position, so that the compression nut can be conveniently screwed.
Preferably, the connecting sleeve is provided with a reinforcing rib between the bottom surface of the saddle and the periphery of the connecting sleeve, so that the structural strength of the saddle is improved, and the saddle and the middle cover are prevented from being broken due to overlarge stress in the extrusion process.
The utility model has the advantages that:
the utility model discloses the installation is swift convenient, improves sealing performance, need not to use glue sealed, reduces the energy consumption, improves production efficiency.
Drawings
Fig. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic cross-sectional front view of the terminal;
fig. 3 is a schematic sectional view of the front view during assembly of the present invention.
Detailed Description
As shown in fig. 1 and 2, a terminal sealing structure of a glue-free type storage battery comprises a middle cover 1 and a terminal 2, wherein a terminal hole 11 for the terminal 2 to penetrate out is arranged on the middle cover 1.
The periphery of the terminal 2 is coated with a connecting sleeve 3 penetrating through the terminal hole 11, the connecting sleeve 3 is made of acid-resistant insulating material, and the connecting sleeve 3 is formed on the outer edge of the terminal 2 through injection molding.
The peripheral face of terminal 2 is equipped with 2-6 annular grooves 21 along terminal 2 interval arrangement, and annular groove 21 sets up 4 preferably, and during the concrete design, the width of annular groove 21 is 1-5mm, and the degree of depth is 1-5mm, correspondingly, be equipped with on the adapter sleeve 3 with annular groove 21 complex annular arch 31, effectively strengthen the cladding intensity of adapter sleeve 3 and terminal 2, avoid droing.
One end of the connecting sleeve 3, which is positioned at the inner side of the battery, is provided with a saddle 4, and a sealing ring 5 is arranged at the periphery of the connecting sleeve 3 and between the saddle 4 and the middle cover 1.
The cross section of the sealing ring 5 is square, and the middle cover 1 is provided with a first convex ring 12 which extrudes the top surface of the sealing ring 5 after assembly; the top surface of the saddle 4 is provided with a second convex ring 41 which extrudes the bottom surface of the sealing ring 5 after assembly.
Specifically, the number of the first bosses 12 is one, the number of the second bosses 41 is two, and the position of the first boss 12 corresponds to between the two second bosses 41, and more specifically, the cross-sections of the first boss 12 and the second boss 41 are both triangular.
In order to prevent the saddle 4 from breaking in the extrusion process, a reinforcing rib 42 is arranged on the connecting sleeve 3 between the bottom surface of the saddle 4 and the periphery of the connecting sleeve 3.
One end of the connecting sleeve 3, which is positioned at the outer side of the battery, is provided with a threaded section, the threaded section is provided with an external thread, and the periphery of the threaded section is provided with a compression nut 6 which is in threaded fit with the threaded section and abuts against the top surface of the middle cover 1.
In order to facilitate screwing of the compression nut 6, a wrench action position is arranged on the top surface of the compression nut 6.
The utility model discloses an assembling process:
as shown in fig. 3, a sealing ring 5 is sleeved on a terminal 2 and is attached to a pallet 4, the terminal 2 passes through a terminal hole 11 of a middle cover 1 and is screwed on a thread section thread on the top of a connecting sleeve 3 by a compression nut 6, in order to facilitate screwing of the compression nut 6, a screwing groove is arranged on the top of the compression nut 6, screwing is performed by a matched wrench 7, in order to facilitate distinguishing positive and negative terminals 2, the compression nut 6 can be distinguished by different colors, specifically, the positive terminal 2 adopts a red compression nut 6, and the negative terminal 2 adopts a blue or black compression nut 6; and (3) rotating the compression nut 6, wherein the compression nut 6 drives the connecting sleeve 3 and the terminal 2 to move upwards until the saddle 4 compresses the sealing ring 5 between the saddle 4 and the middle cover 1, and sealing assembly is completed.

Claims (9)

1. The utility model provides a no glue formula battery terminal seal structure, includes well lid and terminal, be equipped with the terminal hole that supplies the terminal to wear out on the well lid, its characterized in that: the periphery of the terminal is coated with a connecting sleeve penetrating through the terminal hole, one end of the connecting sleeve, which is positioned at the inner side of the battery, is provided with a saddle, and a sealing ring is arranged at the periphery of the connecting sleeve and between the saddle and the middle cover; the connecting sleeve is located at one end of the outer side of the battery and is provided with a threaded section, the threaded section is provided with an external thread, and the periphery of the threaded section is provided with a compression nut which is in threaded fit with the threaded section and abuts against the top surface of the middle cover.
2. The no-glue battery terminal sealing structure according to claim 1, characterized in that: the terminal is characterized in that an annular groove is formed in the outer peripheral surface of the terminal, and an annular protrusion matched with the annular groove is arranged on the connecting sleeve.
3. The no-glue battery terminal sealing structure according to claim 2, characterized in that: the number of the annular grooves is 2-6, and the annular grooves are arranged at intervals along the terminal.
4. The no-glue battery terminal sealing structure according to claim 3, characterized in that: the width of the annular groove is 1-5mm, and the depth is 1-5 mm.
5. The no-glue battery terminal sealing structure according to claim 1, characterized in that: the cross section of the sealing ring is square, and the middle cover is provided with a first convex ring which extrudes the top surface of the sealing ring after being assembled; and the top surface of the supporting table is provided with a second convex ring which extrudes the bottom surface of the sealing ring after assembly.
6. The no-glue battery terminal sealing structure according to claim 5, wherein: the number of the first convex rings is one, the number of the second convex rings is two, and the position of the first convex ring corresponds to the position between the two second convex rings.
7. The no-glue battery terminal sealing structure according to claim 5, wherein: the cross sections of the first convex ring and the second convex ring are both triangular.
8. The no-glue battery terminal sealing structure according to claim 1, characterized in that: and the top surface of the compression nut is provided with a wrench action position.
9. The no-glue battery terminal sealing structure according to claim 1, characterized in that: and reinforcing ribs are arranged on the connecting sleeve between the bottom surface of the saddle and the periphery of the connecting sleeve.
CN202020834312.3U 2020-05-18 2020-05-18 Glue-free type storage battery terminal sealing structure Active CN212323089U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020834312.3U CN212323089U (en) 2020-05-18 2020-05-18 Glue-free type storage battery terminal sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020834312.3U CN212323089U (en) 2020-05-18 2020-05-18 Glue-free type storage battery terminal sealing structure

Publications (1)

Publication Number Publication Date
CN212323089U true CN212323089U (en) 2021-01-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113328181A (en) * 2021-04-27 2021-08-31 天能电池集团股份有限公司 Lead storage battery free of sealant and storage battery pack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113328181A (en) * 2021-04-27 2021-08-31 天能电池集团股份有限公司 Lead storage battery free of sealant and storage battery pack

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