CN218274987U

CN218274987U - Battery structure and electronic equipment with same

Info

Publication number: CN218274987U
Application number: CN202222258958.3U
Authority: CN
Inventors: 朱永辉; 卿艳华; 吕品风; 刘仕臻
Original assignee: Sunwoda Electronic Co Ltd
Current assignee: Sunwoda Electronic Co Ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-01-10
Anticipated expiration: 2032-08-25

Abstract

The utility model provides a battery structure and have its electronic equipment belongs to battery technical field, include: the length of the first PCM plate is smaller than the length of the end part of the battery cell, and the width of the first PCM plate is smaller than the width of the end part of the battery cell; the length of the second PCM plate is smaller than the length of the end part of the battery cell, and the width of the second PCM plate is smaller than the width of the end part of the battery cell; the first PCM plate and/or the second PCM plate are/is attached to the lug and electrically connected with the lug; the utility model discloses a battery structure, at the tip that has utmost point ear of electric core, the form of the two PCM boards of adoption, the size after two PCM boards make up does not surpass the tip size of electric core to need not to roll over the vertical recess to electric core with the PCM board, this kind of packaging mode is under the same size, owing to reduced the shared space of PCM board, consequently can increase the capacity of battery effectively, promotes holistic duration of a journey ability of cell-phone and battery cycle life.

Description

Battery structure and electronic equipment with same

Technical Field

The utility model relates to a battery technology field, concretely relates to battery structure and have its electronic equipment.

Background

In the conventional battery packaging schemes, a single-plate PCM is adopted, for example, the following is adopted: and (3) erecting the single-board PCM and assembling the battery cell, or assembling the single-board PCM and the battery cell in a horizontal mode.

Under the condition of adopting the single-board PCM, in order to realize the overcurrent requirement, the length of the single-board PCM needs to be increased. If the single plate is vertical, the battery capacity is reduced because the length is too long and the occupied volume is too large, and if the single plate is horizontally laid on the top of the battery, the width is too wide and the occupied volume is larger.

Therefore, the single-board PCM occupies a large amount of space in terms of length and width of the space, so that the capacity of the battery cannot reach a limit value, and the cruising ability of the mobile phone is greatly attenuated.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the present invention lies in overcoming the packaged battery in the prior art, and the adoption of the single-plate PCM results in the great defect of size of the battery, thereby providing a battery structure and an electronic device having the same.

In order to solve the technical problem, the utility model provides a battery structure, include:

the end part of the battery cell is provided with a tab;

a first PCM plate disposed at the end, the first PCM plate having a length less than a length of the end and a width less than a width of the end;

a second PCM plate provided at the end, the second PCM plate having a length less than that of the end and a width less than that of the end;

the first PCM plate and/or the second PCM plate are/is attached to the lug, and the first PCM plate and the second PCM plate are electrically connected with the lug.

Optionally, the method further comprises: at least two electric cores are arranged side by side, and two adjacent electric cores are bonded.

Optionally, the first PCM board and the second PCM board are electrically connected to the tab through a welding tab, respectively.

Optionally, the first PCM plate and the second PCM plate are stacked and disposed at one side of the tab in a direction perpendicular to the end portion, and the first PCM plate and the second PCM plate are disposed to be tiled toward the end portion.

Optionally, the first PCM plate and the second PCM plate are vertically and juxtaposed in a direction parallel to the end portions on one side of the tab.

Optionally, the first PCM plate and the second PCM plate are vertically disposed at both sides of the tab, respectively, in a direction parallel to the end portions.

Optionally, one of the first PCM plate and the second PCM plate is flatly disposed at one side of the tab, and the other of the first PCM plate and the second PCM plate is vertically disposed at the other side of the tab.

Optionally, the first PCM board and the second PCM board are bonded.

Optionally, the first PCM board and the second PCM board are connected by a flexible wiring board.

The utility model provides an electronic equipment, including any one of the above-mentioned scheme battery structure.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a battery structure, at the tip that has utmost point ear of electric core, the form of the two PCM boards of adoption, size after the combination of two PCM boards does not surpass the tip size of electric core to need not the vertical book of PCM board to the recess of electric core in, this kind of packaging mode is under the same size, owing to reduced the shared space of PCM board, consequently can increase the capacity of battery effectively, promotes holistic duration of a journey of cell-phone and battery cycle life.

2. The utility model provides a battery structure lies with the biplate at last, the biplate is vertical, a board is flat lies a board vertical, the vertical mode of baffle, and reasonable space combination mode has strengthened the collocation steadiness and the effective capacity space of PCM board and list, two polymer electricity cores, has solved the too big contradiction of occupation volume widely.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a specific embodiment of the battery structure of the present invention, in which a single cell is adopted.

Fig. 2 is a perspective view of a specific embodiment of the battery structure of the present invention, in which a dual cell is adopted.

Fig. 3 is a front sectional view of an embodiment of an arrangement of dual PCM boards in a battery structure according to the present invention.

Fig. 4 is a front cross-sectional view of a second embodiment of the arrangement of the dual PCM boards in the battery structure according to the present invention.

Fig. 5 is a front sectional view of a third embodiment of the arrangement of the dual PCM boards in the battery structure according to the present invention.

Fig. 6 is a front sectional view of a fourth embodiment of the arrangement of the dual PCM plates in the battery structure according to the present invention.

Description of reference numerals:

1. an electric core; 2. a first PCM board; 3. a second PCM panel; 4. and (7) a tab.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment provides a battery structure which can be used in a soft-package polymer lithium ion battery.

As shown in fig. 1, a specific embodiment of the battery structure provided in this embodiment includes: the battery cell comprises a battery cell 1 and a PCM plate arranged at the end part of the battery cell 1. The end of the battery cell 1 is provided with a tab 4, and the PCM plate comprises: a first PCM plate 2 and a second PCM plate 3, both said first PCM plate 2 and said second PCM plate 3 being electrically connected to said tab 4. And, the lengths of the first and

second PCM boards

2 and 3 are each smaller than the length of the end of the battery cell 1, and the widths of the first and

second PCM boards

2 and 3 are each smaller than the width of the end of the battery cell 1. For example, when the dimensions of the end of the battery cell 1 are: when the length is 3cm and the width is 1cm, the length of the first PCM plate 2 and the width of the second PCM plate 3 are both not more than 3cm and not more than 1cm.

So set up, the size of the two PCM boards after the combination does not surpass the tip size of electric core to need not to roll over the vertical recess to electric core with the PCM board, this kind of packaging method is under the same size, owing to reduced the shared space of PCM board, consequently can increase the capacity of battery effectively, promotes the holistic duration of cell-phone and battery cycle life.

As shown in fig. 2, as an alternative implementation, the battery structure provided in this embodiment may further include: at least two electric core 1 sets up side by side, and adjacent two electric core 1 bonds. Thus configured, the length of the first PCM board 2 and the second PCM board 3 may be set not to exceed the total length of the end portions of the assembled plurality of battery cells 1. For example, the combined end sizes of the two battery cells 1 are as follows: length 6cm, width 1cm, the length of the first PCM board 2 and the second PCM board 3 is not more than 6cm, and the width is not more than 1cm. After the lengths of the first PCM board 2 and the second PCM board 3 are relatively increased, the tabs 4 at the ends of the dual cells may be connected at the same time.

As shown in fig. 1, the present embodiment provides a battery structure in which a first PCM board 2 and a second PCM board 3 are electrically connected to the tab 4 by welding tabs, respectively. When the welding sheet is adopted for laser spot welding, the burning of the lug 4 or the PCM plate can be avoided.

As shown in fig. 3, the battery structure provided for this embodiment is a schematic diagram of an arrangement of the PCM board at the end of the battery cell 1. In this embodiment, the first PCM plate 2 and the second PCM plate 3 are stacked and disposed at one side of the tab 4 in a direction perpendicular to the end portions, and the first PCM plate 2 and the second PCM plate 3 are disposed flatly toward the end portions. The width of the end portion of the battery cell 1 is a transverse distance from the left side of the end portion to the tab 4, the width of the first PCM plate 2 and the width of the second PCM plate 3 are distances between the left end and the right end of the flat state, and the width of the first PCM plate 2 and the width of the second PCM plate 3 are smaller than the width of the end portion of the battery cell 1.

The battery structure provided by the embodiment is mounted in the following manner: first, the second PCM board 3 is tiled at the end of the battery cell 1, and can be connected with the end of the battery cell 1 by bonding. Then, the first PCM plate 2 is electrically connected with the tab 4 of the battery cell through a welding sheet, and then the first PCM plate 2 is stacked and laid on the second PCM plate 3, and at this time, the tab 4 is also bent along with the first PCM plate 2. Wherein an adhesive connection can be made between the first PCM board 2 and the second PCM board 3. Finally, the first PCM board 2 and the second PCM board 3 are electrically connected by a flexible wiring board, and in addition, the flexible wiring board may also function to further fix the first PCM board 2 and the second PCM board 3.

As shown in fig. 4, the battery structure provided for this embodiment is a schematic diagram of an arrangement of the PCM board at the end of the battery cell 1. In this embodiment, the first PCM plate 2 and the second PCM plate 3 are vertically arranged side by side in a direction parallel to the end portions on one side of the tab 4. The width of the end part of the battery cell 1 is the transverse distance from the left side of the end part to the tab 4, the width of the first PCM plate 2 and the second PCM plate 3 is the distance between the left end and the right end in a vertical state, and the combined width of the first PCM plate 2 and the second PCM plate 3 is smaller than the width of the end part of the battery cell 1.

The installation mode of the battery structure that this embodiment provided does: first connect first PCM board 2 electricity through welding piece and utmost point ear 4 of electric core, then with the vertical setting in the tip of electric core of first PCM board 2, utmost point ear 4 also bends along first PCM board 2 this moment. And then the second PCM plate 3 and the first PCM plate 2 are vertically arranged at the end part of the battery cell in parallel, and the second PCM plate 3 and the first PCM plate 2 can be connected through bonding. Finally, the first PCM board 2 and the second PCM board 3 are electrically connected by a flexible wiring board, and in addition, the flexible wiring board may also function to further fix the first PCM board 2 and the second PCM board 3.

As shown in fig. 5, the battery structure provided for this embodiment is a schematic diagram of an arrangement of the PCM board at the end of the battery cell 1. In this embodiment, the first PCM plate 2 and the second PCM plate 3 are vertically disposed at both sides of the tab 4, respectively, in a direction parallel to the end portions. The width of the end portion of the battery cell 1 is the transverse distance from the left side of the end portion to the lug 4 and the transverse distance from the right side of the end portion to the lug 4, the width of the first PCM plate 2 and the width of the second PCM plate 3 are the distance between the left end and the right end of the vertical state, the width of the first PCM plate 2 is smaller than the width of the left side of the lug 4 at the end portion of the battery cell 1, and the width of the second PCM plate 3 is smaller than the width of the right side of the lug 4 at the end portion of the battery cell 1.

The installation mode of the battery structure that this embodiment provided does: first connect first PCM board 2 through welding piece and the utmost point ear 4 electricity of electricity core to be connected, then with the vertical setting of first PCM board 2 at the tip of electricity core 1, utmost point ear 4 also bends along with first PCM board 2 this moment. Then the second PCM plate 3 is vertically disposed at the other side of the tab 4 away from the first PCM plate 2, and the second PCM plate 3 may be connected to the root of the tab by bonding. Finally, the first PCM board 2 and the second PCM board 3 are electrically connected by a flexible wiring board, and in addition, the flexible wiring board may also function to fix the first PCM board 2 and the second PCM board 3.

As shown in fig. 6, the battery structure provided for this embodiment is a schematic diagram of an arrangement of the PCM board at the end of the battery cell 1. In this embodiment, the first PCM plate 2 is disposed flatly on one side of the tab 4, and the second PCM plate 3 is disposed vertically on the other side of the tab 4. Wherein, the width of the tip of electric core 1 is the left side of tip to the transverse distance of utmost point ear 4 and the right of tip to the transverse distance of

utmost point ear

4, 2 width of first PCM board are for the distance between the both ends about the tiling state, the width of second PCM board 3 is the distance between the both ends about the vertical state, the width of first PCM board 2 is less than the width that the tip of electric core 1 is located utmost point ear 4 left side, the width of second PCM board 3 is less than the width that the tip of electric core 1 is located utmost point ear 4 right side.

The battery structure provided by the embodiment is mounted in the following manner: first connect first PCM board 2 through welding piece and the utmost point ear 4 electricity of electric core, then with first PCM board 2 tiling setting at the tip of electric core, utmost point ear 4 also bends along first PCM board 2 this moment. Then the second PCM plate 3 is vertically arranged on the other side of the tab 4 far away from the first PCM plate 2, and the second PCM plate 3 and the root of the tab can be connected through bonding. Finally, the first PCM board 2 and the second PCM board 3 are electrically connected by a flexible wiring board, and in addition, the flexible wiring board may also serve to further fix the first PCM board 2 and the second PCM board 3.

Example 2

The present embodiment provides an electronic apparatus that employs the battery structure described in embodiment 1. Specifically, the electronic device may be a mobile phone, a digital camera, or the like.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the present invention.

Claims

1. A battery structure, comprising

The battery cell (1) is provided with a tab (4) at the end part;

-a first PCM plate (2) arranged at said end, said first PCM plate (2) having a length smaller than the length of said end, said first PCM plate (2) having a width smaller than the width of said end;

-a second PCM plate (3) arranged at said end, said second PCM plate (3) having a length smaller than the length of said end, said second PCM plate (3) having a width smaller than the width of said end;

the first PCM plate (2) and/or the second PCM plate (3) are/is attached to the lug (4), and the first PCM plate (2) and the second PCM plate (3) are electrically connected with the lug (4).

2. The battery structure of claim 1, further comprising: at least two electric cores (1) are arranged in parallel, and two adjacent electric cores (1) are bonded.

3. The battery structure according to claim 1 or 2, wherein the first PCM plate (2) and the second PCM plate (3) are electrically connected to the tab (4) by welding tabs, respectively.

4. The battery structure according to claim 3, characterized in that the first PCM plate (2) and the second PCM plate (3) are arranged one on top of the other on one side of the tab (4) in a direction perpendicular to the end portions, and the first PCM plate (2) and the second PCM plate (3) are arranged flat towards the end portions.

5. A battery structure according to claim 3, characterized in that said first PCM plate (2) and said second PCM plate (3) are arranged vertically and side by side in a direction parallel to said ends on one side of said tab (4).

6. The battery structure according to claim 3, characterized in that the first PCM plate (2) and the second PCM plate (3) are vertically disposed on both sides of the tab (4), respectively, in a direction parallel to the ends.

7. The battery structure according to claim 3, characterized in that one of the first PCM plate (2) and the second PCM plate (3) is disposed flat on one side of the tab (4) and the other of the first PCM plate (2) and the second PCM plate (3) is disposed vertically on the other side of the tab (4).

8. The battery structure according to claim 4 or 5, characterized in that the first PCM plate (2) and the second PCM plate (3) are bonded.

9. The battery structure according to any of claims 4-7, characterized in that the connection between the first PCM board (2) and the second PCM board (3) is by means of a flexible wiring board.

10. An electronic device, characterized in that it comprises a battery structure according to any one of claims 1-9.