CN210805910U - Dual-head chargeable and dischargeable lithium battery with fool-proof function - Google Patents

Abstract

The utility model discloses a double-head rechargeable and dischargeable lithium battery with foolproofing, which comprises a battery body, a casing, a connecting plate, a jack, an electrode body, an insulating plate, a positive electrode ear, a negative electrode ear, a convex ring, a ring groove and a The package body is characterized in that: the two ends of the battery body are matched with sleeves, and the sleeves are fixedly connected by symmetrically arranged connecting plates, the inner wall of the sleeve is fixed with a convex ring, and the outer wall of the battery is opened with a ring groove, and the convex ring is slidably connected to the ring groove, an electrode body is installed inside the battery body, and insulating plates are encapsulated at both ends of the electrode body, and both ends of the battery body are provided with positive and negative electrodes. The rechargeable and foolproof lithium battery is designed to be connected by the positive and negative terminals at both ends. It can be charged and discharged at both ends. With the rotation of the casing, the jack is aligned with the positive and negative terminals of the battery body. , It has a strong anti-fool function, avoids mis-insertion and misuse, and improves the convenience and safety of use.

Description

A double-head rechargeable lithium battery with foolproof

technical field

The utility model relates to the technical field of lithium batteries, in particular to a double-head rechargeable and dischargeable lithium battery with foolproofing.

Background technique

Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium-metal batteries, was born in 1996, and its safety, specific capacity, self-discharge rate, and performance-to-price ratio are better than those of lithium-ion batteries. ion battery. Due to its own high technical requirements, only companies in a few countries are now producing such lithium metal batteries.

Lithium-ion batteries are used in a large amount in life, but many users have many irregular operation behaviors. The most common one is charging reverse polarity, which is easy to cause charging damage and even danger.

The fool-proof technology of the battery is a special design that restricts the reverse insertion of the positive and negative electrodes. The current lithium-ion battery does not have a good fool-proof function, which reduces the safety of use. For this reason, we propose a double-head rechargeable battery. Discharge with foolproof lithium battery.

Utility model content

The purpose of the present invention is to provide a double-head rechargeable and dischargeable lithium battery with fool-proofing, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a double-head rechargeable and dischargeable lithium battery with fool-proofing, comprising a battery body, a casing, a connecting plate, a jack, an electrode body, an insulating plate, a positive electrode lug, a negative electrode Ears, convex rings, ring grooves and packaging bodies, the two ends of the battery body are matched with sleeves, and the sleeves are fixedly connected by symmetrically arranged connecting plates, the inner wall of the sleeves is fixed with a convex ring, the battery body The outer wall is provided with a ring groove, and the convex ring is slidably connected with the ring groove, an electrode body is installed inside the battery body, and insulating plates are encapsulated at both ends of the electrode body, and both ends of the battery body are provided with positive and negative electrodes. , and the positive electrode tabs and the negative electrode tabs are vertically staggered, the positive electrode tabs and the negative electrode tabs are respectively connected to the electrode body, the ends of the battery body are located outside the positive electrode tabs and the negative electrode tabs, and an encapsulation body is encapsulated and fixed, and the end faces of the casing are symmetrical A socket is provided.

Preferably, the positive electrode tab and the negative electrode tab have the same structure, the positive electrode tab includes an electrode shell and an electrode sheet, the electrode shells are symmetrically arranged, and the electrode shell is integrally fixed by the electrode sheet.

Preferably, an elastic sheet is fixed on the inner bottom surface of the electrode shell.

Preferably, the casing and the connecting plate are made of hard plastic, and the casing and the connecting plate are integrally injection-molded.

Preferably, the outer wall of the casing is provided with serrations.

Preferably, the cross-sections of the protruding ring and the ring groove are in a matching circular arc shape.

Compared with the prior art, the beneficial effect of the present utility model is: when the device is charged, the casing can be twisted to rotate, so that the jacks are aligned with the positive or negative electrodes, and the jacks at both ends of the battery body correspond to the positive and negative electrodes respectively, Both ends of the battery body can be connected for charging and discharging. This double-headed rechargeable and foolproof lithium battery is designed to be connected by the positive and negative terminals at both ends. It can be plugged and connected at both ends. The jacks are aligned with the positive and negative terminals at both ends of the battery body, which has a strong foolproof function, avoids mis-insertion and misuse, and improves the convenience and safety of use.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the structural schematic diagram of the end face of the casing of the utility model;

FIG. 3 is a schematic diagram of the connection and installation structure of the pole tab of the present invention;

FIG. 4 is a schematic diagram of the mounting and fixing structure of the tab of the present invention;

FIG. 5 is a schematic diagram of the staggered layout structure of the positive electrode lug and the negative electrode lug of the present invention;

6 is a schematic structural diagram of a positive electrode lug of the present invention;

FIG. 7 is a schematic diagram of the structure of an elastic sheet of the present invention.

In the figure: 1, battery body; 2, sleeve; 3, connecting plate; 4, jack; 5, electrode body; 6, insulating plate; 7, positive electrode ear; 8, negative electrode ear; 9, convex ring; 10, Ring groove; 11. Package body; 12. Electrode shell; 13. Electrode sheet; 14. Shrapnel.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-7, the present utility model provides a technical solution: a double-head rechargeable and dischargeable lithium battery with foolproofing, comprising a battery body 1, a casing 2, a connecting plate 3, a jack 4, and an electrode body 5 , insulating plate 6, positive electrode lug 7, negative electrode lug 8, convex ring 9, ring groove 10 and packaging body 11, the two ends of the battery body 1 are fitted with a casing 2, and the casing 2 is fixed by the symmetrically arranged connecting plate 3 Connection, the inner wall of the casing 2 is fixed with a convex ring 9, the outer wall of the battery body 1 is provided with a ring groove 10, and the convex ring 9 is slidably connected to the ring groove 10, the battery body 1 is installed with an electrode body 5, and the two ends of the electrode body 5 An insulating plate 6 is encapsulated, and both ends of the battery body 1 are provided with a positive electrode lug 7 and a negative electrode lug 8, and the positive electrode lug 7 and the negative electrode lug 8 are vertically staggered, and the positive electrode lug 7 and the negative electrode lug 8 are respectively connected to the electrode body 5 correspondingly. The end of the body 1 is located at the positive electrode tab 7 and the negative electrode tab 8, and the package body 11 is encapsulated and fixed outside, and the end surface of the sleeve 2 is symmetrically provided with a jack 4.

When the device is charging, the casing 2 can be twisted to rotate, so that the jack 4 is aligned with the positive electrode lug 7 or the negative electrode lug 8, and the jacks 4 at both ends of the battery body 1 correspond to the positive electrode lug 7 and the negative electrode lug 8 respectively, so that both ends of the battery body 1 are Rechargeable and dischargeable connection, this double-headed rechargeable lithium battery with foolproof design is designed to be connected by the positive lug 7 and the negative lug 8 at both ends, which can be used for charging and discharging at both ends. With the rotation of the casing 2, the socket 4 The positive electrode lugs 7 and the negative electrode lugs 8 at the two ends of the battery body 1 are respectively aligned, which has a strong foolproof function, avoids misinsertion and misuse, and improves the convenience and safety of use.

The positive electrode lug 7 and the negative electrode lug 8 have the same structure. The positive electrode lug 7 includes an electrode shell 12 and an electrode sheet 13. The electrode shell 12 is symmetrically arranged, and the electrode shell 12 is integrally fixed by the electrode sheet 13. The electrode shell 12 can be stably plugged with the charging structure. .

An elastic sheet 14 is fixed on the inner bottom surface of the electrode shell 12 to increase the stability of the electrode connection.

Both the casing 2 and the connecting plate 3 are made of hard plastic, and the casing 2 and the connecting plate 3 are integrally injection-molded, with low production cost, high force strength and long service life.

The outer wall of the casing 2 is provided with a tooth pattern, which is convenient for screwing the casing 2 to rotate.

The cross-sections of the convex ring 9 and the ring groove 10 are in a matching circular arc shape, which increases the effect of rotating and sliding.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a lithium cell that slow-witted is prevented in double-end chargeable and dischargeable area, includes battery body (1), cover shell (2), even board (3), jack (4), electrode body (5), insulation board (6), positive pole ear (7), negative pole ear (8), bulge loop (9), annular (10) and packaging body (11), its characterized in that: the two ends of the battery body (1) are sleeved with the casing (2) in a matching way, and the casing (2) is fixedly connected through the connecting plates (3) which are symmetrically arranged, a convex ring (9) is fixed on the inner wall of the casing (2), a ring groove (10) is arranged on the outer wall of the battery body (1), the convex ring (9) is in sliding clamping connection with the ring groove (10), the electrode body (5) is arranged in the battery body (1), insulating plates (6) are packaged at two ends of the electrode body (5), positive lugs (7) and negative lugs (8) are arranged at two ends of the battery body (1), the positive electrode tabs (7) and the negative electrode tabs (8) are vertically staggered, the positive electrode tabs (7) and the negative electrode tabs (8) are respectively and correspondingly connected with the electrode body (5), the end part of the battery body (1) is positioned outside the positive lug (7) and the negative lug (8) and is fixedly packaged with a packaging body (11), and the end face of the casing (2) is symmetrically provided with the jacks (4).

2. The lithium battery of claim 1, wherein the lithium battery comprises: the structure of the positive tab (7) is the same as that of the negative tab (8), the positive tab (7) comprises an electrode shell (12) and electrode plates (13), the electrode shell (12) is symmetrically arranged, and the electrode shell (12) is integrally fixed through the electrode plates (13).

3. The lithium battery of claim 2, wherein the lithium battery comprises: and the bottom surface in the electrode shell (12) is fixed with an elastic sheet (14).

4. The lithium battery of claim 1, wherein the lithium battery comprises: the casing (2) and the connecting plate (3) are made of hard plastics, and the casing (2) and the connecting plate (3) are integrally formed by injection molding.

5. The lithium battery of claim 1, wherein the lithium battery comprises: the outer wall of the shell (2) is provided with a insection shape.

6. The lithium battery of claim 1, wherein the lithium battery comprises: the sections of the convex ring (9) and the annular groove (10) are in a matched arc shape.

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