CN210110951U

CN210110951U - Polymer lithium battery pack

Info

Publication number: CN210110951U
Application number: CN201921239279.3U
Authority: CN
Inventors: 胡阳普; 王建勇; 郑勇飞
Original assignee: Jiangxi Gaoyi Battery Technology Co Ltd
Current assignee: Jiangxi Gaoyi Battery Technology Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-02-21
Anticipated expiration: 2029-08-02

Abstract

The utility model relates to a polymer lithium cell group comprises coupling mechanism (4) that two at least polymer lithium cells (1, 2) and at least one connection utmost point ear were used, its characterized in that, polymer lithium cell contain anodal ear (12) and negative pole ear (22), coupling mechanism connects the utmost point ear of two adjacent polymer lithium cells, the coupling mechanism shape is the U type, and one end is anodal plug (43), and one end is negative electricity plug (41) in addition, and anodal plug (43) are the same with negative electricity plug (41) structure, and anodal plug sets up encapsulating hole (42) with the root of negative electricity plug, and anodal plug (43) are sealed with negative electricity plug (41) encapsulating, the utility model discloses rational in infrastructure, polymer lithium cell group has water-proof effects.

Description

Polymer lithium battery pack

Technical Field

The utility model relates to a polymer lithium cell manufacturing technology, a special design polymer lithium cell group.

Background

Lithium polymer batteries (Li-polymers, also known as high-molecular lithium batteries): the battery has the obvious advantages of high energy density, miniaturization, ultra-thinness, light weight, high safety, low cost and the like, and is a novel battery. In terms of shape, the lithium polymer battery has the characteristic of ultra-thinness, and can be made into batteries with any shape and capacity according to the requirements of various products. Some large-scale power equipment adopts a plurality of polymers to be connected in series to form a battery pack to supply power, the polymer batteries have conductive properties except for lugs, other surface parts are insulated, and during assembly, some equipment requires the batteries to have a waterproof function, namely, if a small amount of water contacts the battery pack, the batteries cannot leak electricity, so that the polymer lithium battery pack with the waterproof function is expected to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polymer battery group of waterproof function.

A polymer lithium battery pack is composed of at least two polymer lithium batteries (1, 2) and at least one connecting mechanism (4) for connecting tabs, and is characterized in that each polymer lithium battery comprises a positive tab (12) and a negative tab (22), the connecting mechanism is connected with the tabs of the two adjacent polymer lithium batteries, the connecting mechanism is U-shaped, one end of the connecting mechanism is a positive plug (43), the other end of the connecting mechanism is a negative plug (41), the positive plug (43) and the negative plug (41) are identical in structure, glue filling holes (42) are formed in the roots of the positive plug and the negative plug, one end of the positive plug is inserted into the positive tab (12), one end of the negative plug is inserted into the negative tab (22), contact is arranged in the positive plug, a first conductive contact (413) is arranged in the negative plug, a second conductive contact (416) is arranged in the negative plug, and the first conductive contact (413) is communicated with the second conductive contact, insulating casing (418) parcel first conductive contact (413), connecting wire (417) and second conductive contact (416), set up encapsulating track groove respectively at the root of insulating casing (418) simultaneously, correspond anodal ear (12) department and set up first encapsulating track groove (412), correspond negative pole ear (22) department and set up second encapsulating track groove (415).

Further, the root of the positive lug (12) is arranged to be wrapped by the insulating polymer, namely an insulating root (12a) is formed, and the insulating root (12a) extends into the first glue pouring rail groove (412).

Furthermore, the first glue-pouring rail groove (412) and the second glue-pouring rail groove (415) are filled with insulating glue, and the insulating glue separates the outside from the inside of the insulating shell (418).

Furthermore, the first glue filling rail groove (412) and the second glue filling rail groove (415) are respectively communicated with a glue filling hole (42).

Further, the glue filling hole (42) is in the shape of an open square box or an open barrel.

Further, the insulating polymer of the insulating root (12a) is sealed by thermoplastic, i.e. the tab is sealed with respect to the outside.

Furthermore, the first glue pouring rail groove (412) and the second glue pouring rail groove (415) are identical in shape and are groove bodies with openings facing the polar lug surfaces.

The utility model discloses realize sealed key lies in, coupling mechanism (4) show symmetrical structure, root at positive plug (43) sets up a first encapsulating track groove (412) that holds the insulating cement, then insulating cement is filled to the inside, thus, the sealing that whole wire realized promptly, realize the junction that the battery established ties promptly and realize sealedly, make a waterproof polymer group battery, when the lithium cell of the polymer that needs to establish ties more, also install this method and connect, it is to be noted that, positive plug (43) itself can independently get up, make an independent sealing plug, middle wire is connected outsidely, then realize water-tight at the junction, prevent the electric leakage.

Drawings

Fig. 1 is a schematic diagram of a polymer lithium battery pack according to an embodiment of the present invention.

Fig. 2 is a schematic view of the connection mechanism (4).

Fig. 3 is a schematic view of a junction of a polymer lithium battery pack according to an embodiment of the present invention.

Fig. 4 is a schematic top view of the connection mechanism (4).

In the figure: the connection mechanism 4, the polymer lithium battery (1, 2, 3), the positive tab 12, the negative tab 22, the positive plug 43, the negative plug 41, the glue filling hole 42, the second conductive contact 416, the first conductive contact 413, the first glue filling rail groove 412, the second glue filling rail groove 415 and the insulation root 12 a.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and drawings.

The utility model relates to a waterproof polymer lithium cell group.

Referring to fig. 1-4, a polymer lithium battery pack comprises at least two polymer lithium batteries (1, 2, 3) and at least one connecting mechanism (4, 5) for connecting tabs, wherein each polymer lithium battery comprises a positive tab 12 and a negative tab 22, the connecting mechanism connects the tabs of two adjacent polymer lithium batteries, the connecting mechanism is U-shaped, one end of the connecting mechanism is a positive plug 43, the other end of the connecting mechanism is a negative plug 41, the positive plug 43 and the negative plug 41 have the same structure, the root parts of the positive plug and the negative plug are provided with a glue filling hole 42, one end of the positive plug is inserted into the positive tab 12, one end of the negative plug is inserted into the negative tab 22, the positive plug is internally provided with a contact, a first conductive contact 413 is arranged in the negative plug, a second conductive contact 416 is arranged in the negative plug, the first conductive contact 413 is communicated with the second conductive contact 416 through a connecting wire 417, and an insulating, The lead 417 and the second conductive contact 416 are connected, and at the same time, a first potting track groove 412 is disposed at the position corresponding to the positive tab 12, and a second potting track groove 415 is disposed at the position corresponding to the negative tab 22, respectively.

As shown in fig. 1, a total of three

lithium polymer batteries

1,2,3 are connected in series.

Referring to fig. 2, the external appearance of the connection mechanism 4 is shown.

As shown in fig. 3, the root of the positive tab 12 is configured to be wrapped by the insulating polymer, i.e. to form an insulating root (12a), and the insulating root (12a) extends into the first glue-pouring rail groove 412, so that the purpose of this configuration is to seal the opening when injecting the insulating hot glue into the first glue-pouring rail groove 412, which is the key for sealing.

Specifically, the first glue-filled rail groove 412 and the second glue-filled rail groove 415 are filled with insulating glue, and the insulating glue partitions the outside from the inside of the insulating housing 418.

Since the positive plug 43 and the negative plug 41 have the same structure, one structure will be described and the other structure will be known in bulk.

Specifically, the first glue filling rail groove 412 and the second glue filling rail groove 415 are respectively communicated with the glue filling holes 42.

Specifically, the glue hole 42 is in the shape of an open square box or a perhaps open barrel.

Specifically, the glue filling hole 42 is used for facilitating glue filling, and usually a glue filling pipe is adopted, and then the glue filling hole 42 is aligned with the first glue filling rail groove 412 for glue filling, and when the first glue filling rail groove is filled with glue, the first glue filling rail groove is cooled and solidified, so that water sealing can be realized.

As shown in fig. 4, the glue filling holes 42 are arranged according to the characteristics of the tab.

In particular, the insulating polymer of the insulation root 12a is sealed with thermoplastic, i.e. the tab is sealed with respect to the outside.

As shown in fig. 3, first glue-pouring rail groove 412 and second glue-pouring rail groove 415 have the same shape and are both groove bodies with openings facing the pole ear surface, which is convenient for insulating glue to cover the basic position of positive pole ear 12.

The utility model discloses realize sealed key lies in, coupling mechanism 4 shows symmetrical structure, root at anodal plug 43 sets up a first encapsulating track groove 412 that holds the insulating cement, then the inside is filled with insulating cement, and like this, the water-stop is realized promptly to whole wire, realize that the junction of battery series connection realizes sealedly, form a waterproof polymer group battery, when the lithium cell of the polymer that needs to establish ties more, also install this method and connect, it needs to notice, anodal plug 43 itself can independently get up, make an independent sealing plug, middle wire connection is outside, then realize the water-stop in the junction, prevent the electric leakage.

If the positive plug 43 is immediately terminated with a wire, it may form a sealed wire header. Such sealed lead connections can be used since the battery pack ultimately has two terminals.

The utility model provides a polymer lithium cell's of establishing ties utmost point ear sealed problem, the polymer lithium cell group of formation has good sealed effect.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims

1. A polymer lithium battery pack is composed of at least two polymer lithium batteries (1, 2) and at least one connecting mechanism (4) for connecting tabs, and is characterized in that each polymer lithium battery comprises a positive tab (12) and a negative tab (22), the connecting mechanism is connected with the tabs of the two adjacent polymer lithium batteries, the connecting mechanism is U-shaped, one end of each connecting mechanism is a positive plug (43), the other end of each connecting mechanism is a negative plug (41), the positive plug (43) and the negative plug (41) are identical in structure, the root parts of the positive plug and the negative plug are provided with glue filling holes (42), one end of the positive plug is inserted into the positive tab (12), one end of the negative plug is inserted into the negative tab (22), a first conductive contact (413) which is in contact with the positive tab (12) is arranged in the positive plug, and a second conductive contact (416) which is in contact with the negative tab (, the first conductive contact (413) is communicated with the second conductive contact (416) through a connecting wire (417), the insulating shell (418) wraps the first conductive contact (413), the connecting wire (417) and the second conductive contact (416), and meanwhile the root of the insulating shell (418) is respectively provided with a glue filling rail groove, namely a first glue filling rail groove (412) is arranged at the position corresponding to the positive lug (12), and a second glue filling rail groove (415) is arranged at the position corresponding to the negative lug (22).

2. The polymer lithium battery pack of claim 1, wherein the root of the positive tab (12) is configured to be wrapped by an insulating polymer to form an insulating root (12a), and the insulating root (12a) extends into the first glue-filled rail groove (412).

3. The polymer lithium battery pack of claim 1, wherein the first glue-filled rail groove (412) and the second glue-filled rail groove (415) are filled with an insulating glue, and the insulating glue separates the outside from the inside of the insulating housing (418).

4. The polymer lithium battery pack of claim 3, wherein the first glue-pouring rail groove (412) and the second glue-pouring rail groove (415) are respectively communicated with a glue-pouring hole (42).

5. The polymer lithium battery pack of claim 4, wherein the glue hole (42) is in the shape of an open square box or an open circular barrel.

6. The polymer lithium battery pack according to claim 1, characterized in that the bottom of the negative electrode tab (22) is an insulating root (12a), and the insulating polymer of the insulating root (12a) is sealed by thermoplastic, i.e. the tab is sealed with respect to the outside.

7. The polymer lithium battery pack of claim 4, wherein the first glue track groove (412) and the second glue track groove (415) are identical in shape and are groove bodies with openings facing the pole ear surfaces.