CN217114592U - Battery isolation ring attached to positive electrode shell - Google Patents

Abstract

The utility model provides a battery isolation ring with laminating of positive pole shell, including the battery isolation ring body, the lower extreme of battery isolation ring body is positive pole shell installation end, be equipped with on the outer wall of battery isolation ring body to the positive pole shell overlap joint portion that the radial outside of battery isolation ring body extends, the lower surface and the horizontal plane slope of positive pole shell overlap joint portion are certain angle. Positive pole shell overlap joint portion can avoid dirty scale of receiving with the up end laminating of positive pole shell more inseparabler, and, there is not the perk basically in the lower surface downward sloping of positive pole shell overlap joint portion, guarantees the effect and the product quality of follow-up parcel packaging film process, avoids doing over again.

Description

Battery isolation ring attached to positive electrode shell

Technical Field

The utility model relates to a battery pack spare field especially relates to a battery isolation circle with laminating of positive pole shell.

Background

The commonly used batteries of the internet of things equipment comprise an alkaline manganese battery, a nickel-cadmium battery, a lithium ion battery and the like, wherein a positive terminal and a negative cover are respectively assembled at two ends of a positive steel shell, the positive terminal is used as the positive electrode of the battery, and the top of the negative cover is used as the negative electrode of the battery. In some types of batteries, after sealing, an annular battery groove is formed between the peripheral wall of the negative cover and the positive steel shell, and in order to prevent dirt from entering the battery groove to cause slow short circuit of the battery, a battery isolation ring (also called a "battery bottom ring") is embedded in the battery groove, and the outer wall of the battery isolation ring is also provided with a positive steel shell overlapping part which extends outwards and horizontally. In the packaging link of the battery, a layer of packaging film is wrapped outside the battery, and the packaging film is subjected to thermal shrinkage to fixedly wrap the overlapping part of the positive steel shell, so that the battery isolation ring is fixed. However, the conventional battery isolation ring is not tightly attached to the upper end face of the positive steel shell, and when a packaging film is damaged, the problem that dirt enters the battery groove still exists. Moreover, the battery isolation ring and the upper end face of the positive steel shell are always tilted to a certain degree, so that the effect and the product quality of the subsequent packaging film wrapping process are affected, and rework is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a battery isolation circle with anodal shell laminating, it can improve the untight problem of battery isolation circle and anodal box hat laminating.

The utility model provides a battery isolation circle with laminating of positive pole shell, includes the battery isolation circle body, the lower extreme of battery isolation circle body is positive pole shell installation end, be equipped with on the outer wall of battery isolation circle body to the positive pole shell overlap joint portion that the radial outside of battery isolation circle body extended, the lower surface and the horizontal plane slope of positive pole shell overlap joint portion are certain angle.

The utility model discloses a lower surface and the horizontal plane slope of positive pole shell overlap joint portion are certain angle, make the lower surface of positive pole shell overlap joint portion can be with the upper surface laminating of positive pole shell inseparabler.

Preferably, the overlapping part of the positive electrode shell is of an annular structure arranged around the periphery of the battery isolation ring body.

The positive electrode shell overlapping part and the battery isolation ring body are preferably connected into an integral structure.

The included angle B between the lap joint part of the positive electrode shell and the horizontal plane is preferably controlled to be more than 0 degree and less than or equal to 20 degrees. Further preferably, 5 DEG < B.ltoreq.15 deg.

Preferably, the lower surface of the overlapping part of the positive electrode can is arranged obliquely downwards. The lower surface of positive pole shell overlap joint portion can be with the upper surface laminating of positive pole shell inseparabler, and does not have the perk basically, guarantees the effect and the product quality of follow-up parcel packaging film process, avoids doing over again.

Preferably, a center hole is formed in the battery isolation ring body along the central axis of the battery isolation ring body, the lower end of the center hole is a cathode cover insertion end, the upper end of the battery isolation ring body extends upwards to form an upper extension section, and a cathode cover top overlapping part extending towards the center side of the isolation ring body is arranged on the inner wall of the upper extension section. Further, negative pole lid caping overlap joint portion is the insulator, and is insulating negative pole caping overlap joint portion can the overlap joint be in on the upper surface of the caping of negative pole lid, adopt the battery of battery isolation ring equipment can avoid the caping of the negative pole lid of a battery to take place comprehensive contact butt joint and the caping of the negative pole lid of another battery and the phenomenon that the positive negative pole of battery connects reversely appears. Furthermore, the lower surface of the lap joint part at the top of the cathode cover is inclined at a certain angle with the horizontal plane.

In a specific implementation process, a negative electrode cover is coaxially inserted and fixed in the central hole of the battery isolation ring body, the negative electrode cover comprises a cover top and a peripheral wall, and the lower surface of the overlapping part of the cover top of the negative electrode cover is pressed against the upper surface of the cover top of the negative electrode cover. In addition, the outer side of the peripheral wall of the negative electrode cover is coaxially sleeved with a positive electrode shell, an annular groove is formed between the peripheral wall of the negative electrode cover and the positive electrode shell, the lower edge of the battery isolation ring body is inserted into the annular groove, and the lower surface of the overlapping part of the positive electrode shell is pressed against the upper surface of the positive electrode shell. And one end of the positive electrode shell, which is far away from the negative electrode cover, is also provided with a positive electrode terminal. Preferably, the lap joint part at the top of the negative cover consists of a plurality of lap blocks uniformly arranged along the circumferential circumference of the battery isolation ring body. Further, the minimum diameter of the circumference enclosed by the overlapping blocks is larger than the diameter of the positive terminal, so that the positive terminal of the battery can be normally connected with the top of the negative cover of the battery in a butt joint mode.

Drawings

Fig. 1 is a longitudinal sectional view of a battery separator of the present invention;

fig. 2 is a longitudinal sectional view of the battery separator, negative cover and positive casing assembly structure of the present invention;

fig. 3 is a top view structural diagram of the battery separator of the present invention;

wherein, the chain line in fig. 1 and fig. 2 is the central axis of the battery isolation ring body.

Detailed Description

The preferred embodiments of the battery isolation ring attached to the positive electrode case according to the present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1 and 2, the battery isolation ring attached to the positive electrode case comprises a battery isolation ring body 10, wherein the lower end of the battery isolation ring body 10 is a positive electrode case mounting end 101, a positive electrode case overlapping part 60 extending to the radial outer side of the battery isolation ring body 10 is arranged on the outer wall 12 of the battery isolation ring body 10, and the lower surface of the positive electrode case overlapping part 60 is inclined at a certain angle with a horizontal plane L'. The utility model discloses a positive pole shell overlap joint portion 60 can be with the upper surface laminating of positive pole shell 40 inseparabler.

Preferably, as shown in fig. 3, the positive electrode case overlapping part 60 is an annular structure disposed around the outer circumference of the battery separator body 10. Of course, the positive electrode case engaging portion 60 may be an engaging piece.

Preferably, as shown in fig. 1 and 2, the positive electrode can overlapping part 60 and the battery separator body 10 are preferably connected as an integral structure. Of course, the cathode cap overlap portion 60 and the battery separator body 10 may be separately disposed and then fixedly sleeved together.

As shown in FIG. 1, the angle B between the overlapping part 60 of the positive electrode can and the horizontal plane L' is preferably controlled to be 0 DEG < B ≦ 20 deg. Further preferably, 5 DEG < B.ltoreq.15 deg.

Preferably, the lower surface of the positive electrode can overlapping portion 60 is disposed obliquely downward. The lower surface of positive pole shell overlap joint portion 60 can be with the upper surface laminating of positive pole shell 40 inseparabler, and does not have the perk basically, guarantees the effect and the product quality of follow-up parcel packaging film process, avoids doing over again. Of course, the lower surface of the positive-electrode can overlapping portion 60 may be disposed obliquely upward.

Preferably, as shown in fig. 1 and 2, a central hole 100 is formed in the battery isolation ring body 10 along a central axis thereof, a lower end of the central hole 100 is a negative cap insertion end, an upper end of the battery isolation ring body 10 extends upward to form an upper extension section 11, and a negative cap overlapping part 20 extending toward the central side of the battery isolation ring body 10 is disposed on an inner wall of the upper extension section 11. Further, the cathode cap overlap portion 20 is an insulator, and when a battery (such as an alkaline battery) is assembled by using the battery separator, since the inner wall of the upper extension 11 is provided with the cathode cap overlap portion 20 extending toward the center of the battery separator body 10, when the cathode cap 30 is inserted into the central hole 100, the cathode cap overlap portion 20 is in overlap fit with the cap top 31 of the cathode cap 30; moreover, the insulated overlapping part 20 of the cover top of the negative electrode cover covers the outer surface of the cover top 31 of the negative electrode cover 30 in an overlapping manner, so that the phenomenon that the positive electrode and the negative electrode of the battery are reversely connected due to the fact that the cover top 31 of the negative electrode cover 30 of one battery is in full-surface contact butt joint with the cover top 31 of the negative electrode cover 30 of the other battery is avoided. Further, as shown in fig. 1 and 2, the lower surface of the cathode cap overlap portion 20 is inclined at a certain angle to the horizontal plane L. The preferred slope of lower surface of negative pole lid top overlap joint portion 20 sets up downwards, negative pole lid top overlap joint portion 20 with laminating between the negative pole lid top 31 is inseparabler, avoids upwards perk when negative pole lid top overlap joint portion 20 receives the scratch even leads to the fracture to influence and prevents the effect of tying back. Further, as shown in fig. 1, the included angle a between the overlapping part 20 of the top of the cathode cover and the horizontal plane L is preferably controlled to be 0 ° < a ≦ 20 °. Further preferably, 5 DEG < A.ltoreq.15 deg. Preferably, as shown in fig. 1 and 2, the negative cap overlap 20 is connected to the battery separator body 10 as an integral structure. Of course, the cathode cap overlap portion 20 and the battery isolation ring body 10 may be separately disposed and then fixedly sleeved together.

In a specific implementation, as shown in fig. 2, a negative cover 30 is coaxially inserted and fixed in the central hole 100 of the battery separator body 10, the negative cover 30 includes a negative cover top 31 and a negative cover peripheral wall 32, and the lower surface of the negative cover top overlapping part 20 presses against the upper surface of the cover top 31 of the negative cover 30. In addition, as shown in fig. 2, a positive electrode can 40 is coaxially sleeved outside the peripheral wall 32 of the negative electrode cover 30, an annular groove is formed between the peripheral wall 32 of the negative electrode cover 30 and the positive electrode can 40, the lower edge of the battery isolating ring body 10 is inserted into the annular groove, and the lower surface of the positive electrode can overlapping part 60 is pressed against the upper surface of the positive electrode can 40. The end of the positive electrode can 40 facing away from the negative electrode cover 30 is also provided with a positive electrode terminal. Preferably, as shown in fig. 3, the negative cap top overlapping part 20 is composed of a plurality of overlapping blocks 20 uniformly arranged along the circumferential circumference of the battery separator body 10. Further, the minimum diameter of the circumference enclosed by each of the overlapping blocks 20 is larger than the diameter of the positive terminal, so that the positive terminal of the battery can be normally connected in series with the top cover 31 of the negative cover 30 of the battery in an abutting mode. Of course, the minimum diameter of the circumference enclosed by the blocks 20 may be smaller than the diameter of the positive terminal, so that the series connection of the batteries is limited, but the individual independent use of the batteries is not affected.

The structure of the cathode cap overlap portion 20 of the present invention may be, but is not limited to, the specific structure shown in the drawings. The shape of the block 20 is not limited to the specific shape shown in the drawings, and may be any common shape such as a circular arc shape or a special shape. The number of the said blocks 20 is not limited. Likewise, the structure and shape of the positive can overlap 60 can be, but is not limited to, the specific structure and shape shown in the drawings.

Horizontal plane L and horizontal plane L' are the perpendicular to the plane of the central axis of cage body 10.

The utility model discloses right the utility model belongs to the technical field of the ordinary skilled person, do not deviating from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. The utility model provides a battery isolation ring with laminating of anodal shell, includes the battery isolation ring body, the lower extreme of battery isolation ring body is anodal shell installation end, its characterized in that: the battery isolation ring comprises a battery isolation ring body and is characterized in that an anode shell overlapping part extending to the radial outer side of the battery isolation ring body is arranged on the outer wall of the battery isolation ring body, and the lower surface of the anode shell overlapping part is inclined to a horizontal plane at a certain angle.

2. The battery separator according to claim 1, wherein: the included angle B between the lower surface of the lap joint part of the positive shell and the horizontal plane is controlled to be more than 0 degree and less than or equal to 20 degrees.

3. The battery separator according to claim 2, wherein: b is more than 5 degrees and less than or equal to 15 degrees.

4. The battery separator according to claim 1, wherein: the lower surface of the overlapping part of the positive shell is obliquely and downwards arranged.

5. The battery separator according to claim 1, wherein: the overlapping part of the positive electrode shell is of an annular structure arranged around the periphery of the battery isolation ring body.

6. The battery separator according to claim 1, wherein: the positive electrode shell overlapping part and the battery isolation ring body are connected into an integral structure.

7. The battery separator according to claim 1, wherein: the battery isolation ring comprises a battery isolation ring body and is characterized in that a center hole is formed in the battery isolation ring body along the central axis of the battery isolation ring body, the lower end of the center hole is a negative cover insertion end, the upper end of the battery isolation ring body extends upwards to form an upper extension section, and an insulated negative cover top overlapping part extending towards the center side of the isolation ring body is arranged on the inner wall of the upper extension section.

8. The battery separator according to claim 7, wherein: the lower surface of the lap joint part at the top of the cathode cover is inclined at a certain angle with the horizontal plane.

9. The battery separator according to claim 7, wherein: the cathode cover is coaxially inserted and fixed in the central hole of the battery isolation ring body, the cathode cover comprises a cover top and a peripheral wall, and the lower surface of the overlapping part of the cover top of the cathode cover is pressed against the upper surface of the cover top of the cathode cover; the outer side of the peripheral wall of the negative electrode cover is coaxially sleeved with a positive electrode shell, an annular groove is formed between the peripheral wall of the negative electrode cover and the positive electrode shell, the lower edge of the battery isolation ring body is inserted into the annular groove, and the lower surface of the overlapping part of the positive electrode shell is pressed against the upper surface of the positive electrode shell.

10. The battery separator according to claim 9, wherein: one end of the positive electrode shell, which is far away from the negative electrode cover, is also provided with a positive electrode terminal; the lap joint part at the top of the cathode cover consists of a plurality of lap blocks uniformly arranged along the circumferential circumference of the battery isolation ring body; the minimum diameter of the circumference enclosed by the lapping blocks is larger than the diameter of the positive terminal.

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