CN221126193U - Battery and terminal equipment with same - Google Patents

Abstract

The utility model provides a battery and a terminal device with the same, wherein the battery comprises: a battery cell having a first sidewall extending along a first direction of the battery cell and a second sidewall extending along a second direction of the battery cell; the electrode lug is arranged on the second side wall and is electrically connected with the battery cell; a protective plate disposed on the first sidewall; and one end of the connecting piece extends to the first side wall and is electrically connected with the protection plate, and the other end of the connecting piece extends to the second side wall and is electrically connected with the tab. According to the technical scheme provided by the utility model, the problem that the volume of the protection plate in the related technology is limited by the accommodating space of the tab battery, so that the quick charge effect of the battery is limited can be solved.

Description

Battery and terminal equipment with same

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery and terminal equipment with the battery.

Background

In the development process of terminal equipment such as mobile phones nowadays, the demand of quick charge technology is larger and larger, the utilization rate of the internal space of the terminal equipment is also continuously improved, the battery comprises a battery core, and a tab and a protection plate which are arranged at the same end of the battery core, the battery core is protected by the protection plate, the battery core is prevented from being overcharged, overdischarged, overcurrent, short-circuited and ultrahigh-temperature charge and discharge, and the volume of the protection plate is limited by a battery accommodating space, so that the charging speed of the battery is influenced.

In the related art, the reference CN213366749U provides a tab adapter, where the tab adapter includes a connection portion and an adapter main body, and the connection portion is bendable around the connection portion between the connection portion and the adapter main body relative to the adapter main body, so as to change the connection direction between the connection portion and the tab, so that the tab can be attached to the end face of the battery cell where the tab is located.

However, the volume of the protection plate in the related art is still limited by the battery accommodating space, and the protection plate cannot meet the requirements of heat dissipation and the like required by the quick charge of the battery, so that the quick charge effect of the battery is limited.

Disclosure of utility model

The utility model provides a battery and terminal equipment with the same, and aims to solve the problem that the volume of a protection plate in the related art is limited by a lug battery accommodating space, so that the quick charging effect of the battery is limited.

According to an aspect of the present utility model, there is provided a battery including: a battery cell having a first sidewall extending along a first direction of the battery cell and a second sidewall extending along a second direction of the battery cell; the electrode lug is arranged on the second side wall and is electrically connected with the battery cell; a protective plate disposed on the first sidewall; and one end of the connecting piece extends to the first side wall and is electrically connected with the protection plate, and the other end of the connecting piece extends to the second side wall and is electrically connected with the tab.

Further, the first side wall is provided with a containing groove extending along the first direction of the battery cell, both ends of the containing groove in the first direction of the battery cell penetrate through the battery cell, one end of the containing groove in the thickness direction of the battery cell penetrates through the front face of the battery cell, and the protection plate is arranged in the containing groove and is parallel to the front face of the battery cell.

Further, the connecting piece comprises a first connecting section and a second connecting section which are connected, wherein the first connecting section is arranged in the accommodating groove and is electrically connected with the protection plate, and the second connecting section is arranged on the second side wall and is electrically connected with the tab.

Further, the first connection section includes: the first plate section is arranged on the bottom wall of the accommodating groove and parallel to the first side wall, and one end of the first plate section, which faces the second side wall, is connected with the second connecting section; the second plate section is clamped between the side wall of the accommodating groove and the protective plate, the second plate section is parallel to the front surface of the battery cell, and one end of the second plate section, which faces the battery cell in the second direction of the battery cell, is connected with one end of the first plate section, which faces the battery cell, in the thickness direction of the battery cell.

Further, the connecting piece includes first linkage segment and the second linkage segment that is connected, and first linkage segment sets up at first lateral wall and is connected with the protection shield electricity, and the second linkage segment sets up on the second lateral wall and is connected with the utmost point ear electricity, and the second linkage segment lid is established in the outside of second lateral wall.

Further, the tab includes: the first bending section is covered on one side, far away from the battery cell, of the second connecting section, and one end, facing the back surface of the battery cell in the thickness direction of the battery cell, of the first bending section is electrically connected with the battery cell; the second bending section is clamped between the second connecting section and the second side wall, and one end of the second bending section, which faces the front face of the battery core in the thickness direction of the battery core, is connected with one end of the first bending section, which faces the front face of the battery core in the thickness direction of the battery core.

Further, the battery also comprises a head gummed paper or a filling gummed layer which is arranged on the first side wall and covers the outer side of the protection plate.

Further, the battery also comprises a first side gummed paper, and the first side gummed paper is attached to the outer sides of the second side wall, the electrode lugs and the connecting piece; and/or, the battery further comprises second side gummed paper, and the second side gummed paper is attached to the outer side of a third side wall of the battery cell, which is arranged opposite to the second side wall.

Further, the protection plate includes: the PCB is arranged on the first side wall, and the connecting piece is electrically connected with the PCB; FPC, FPC and PCB electricity are connected.

According to another aspect of the present utility model, there is provided a terminal device including the battery provided above.

By applying the technical scheme of the utility model, the battery comprises the battery cell, the tab, the protection plate and the connecting piece, the tab and the protection plate are electrically connected by the connecting piece, and the tab is electrically connected with the battery cell, so that the battery cell is charged and protected by the protection plate in the charging process of the battery, the tab is arranged on the second side wall, the protection plate is arranged on the first side wall, the volume limitation of the tab to the protection plate is reduced, the volume of the protection plate can be increased according to the heat dissipation requirement of quick charging, the heat dissipation effect of the protection plate is improved, the protection plate can bear the charging current of the battery during quick charging and meet the heat dissipation requirement of the battery, and the quick charging effect of the battery is further improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows an exploded view of a battery provided by an embodiment of the present utility model;

fig. 2 shows a front view of a battery provided in accordance with a first embodiment of the present utility model;

Fig. 3 is a front view of a battery according to a second embodiment of the present utility model;

Fig. 4 shows a cross-sectional view of a battery provided by an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. A battery cell; 11. a first sidewall; 111. a receiving groove; 12. a second sidewall; 13. a third sidewall; 15. a front face;

20. a tab; 21. a first bending section; 22. a second bending section;

30. a protective plate; 31. a PCB; 32. an FPC;

40. A connecting piece; 41. a first connection section; 411. a first plate segment; 412. a second plate segment; 42. a second connection section;

51. Head gummed paper; 52. a first side gummed paper; 53. and the second side gummed paper.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, the embodiment of the present utility model provides a battery, which includes a battery cell 10, a tab 20, a protection plate 30, and a connection member 40, wherein the battery cell 10 has a first sidewall 11 extending along a first direction of the battery cell 10 and a second sidewall 12 extending along a second direction of the battery cell 10, the tab 20 is disposed on the second sidewall 12 and electrically connected with the battery cell 10, the protection plate 30 is disposed on the first sidewall 11, one end of the connection member 40 extends to the first sidewall 11 and is electrically connected with the protection plate 30, and the other end of the connection member 40 extends to the second sidewall 12 and is electrically connected with the tab 20.

The battery that this embodiment provided is applied, utilize connecting piece 40 to connect utmost point ear 20 and protection shield 30 electricity, be connected utmost point ear 20 and electric core 10 electricity, thereby in the charging process of battery, utilize protection shield 30 to charge protection to electric core 10, through setting up utmost point ear 20 on second lateral wall 12, set up protection shield 30 on first lateral wall 11, thereby reduce the volume restriction of utmost point ear 20 to protection shield 30, can increase the volume of protection shield 30 according to the heat dissipation demand of quick charge, promote the radiating effect of protection shield 30 self, make protection shield 30 can bear the charge current when the battery fills soon and satisfy the heat dissipation demand that the battery fills soon, and then promoted the quick effect of filling of battery.

The first direction of the battery cell 10 refers to the left-right direction in fig. 1, the second direction of the battery cell 10 refers to the up-down direction in fig. 1, and the thickness direction of the battery cell 10 refers to the direction perpendicular to the paper surface in fig. 1.

The first sidewall 11 may be a sidewall of the head of the cell 10, the first sidewall 11 may also be a sidewall of the bottom of the cell 10, the second sidewall 12 may be a sidewall of the left side of the cell 10, and the second sidewall 12 may also be a sidewall of the right side of the cell 10.

The first direction of the battery cell 10 may be the longitudinal direction of the battery cell 10, the second direction of the battery cell 10 may be the width direction of the battery cell 10, or the first direction of the battery cell 10 may be the width direction of the battery cell 10, and the second direction of the battery cell 10 may be the longitudinal direction of the battery cell 10.

It should be noted that the length of the first sidewall 11 may be greater than the length of the second sidewall 12, and the length of the first sidewall 11 may be less than the length of the second sidewall 12.

In this embodiment, the first direction of the battery cell 10 is the length direction of the battery cell 10, the second direction of the battery cell 10 is the width direction of the battery cell 10, and the length of the first side wall 11 is greater than the length of the second side wall 12. By adopting the above structure, through setting the tab on the second side wall 12, under the unchangeable prerequisite of the size of tab, the battery accommodation space that the tab occupy is the product of the area of second side wall 12 and the thickness of tab, compares on setting the tab on first side wall 11, and this embodiment can further reduce the battery accommodation space that the tab occupies, provides bigger space for the setting of protection shield 30, can further promote the radiating effect of protection shield 30 self and the quick charge effect of battery.

It should be noted that, the protection plate 30 includes a substrate made of metallic copper and an element disposed on the substrate, and by increasing the volume of the protection plate 30, the volume of the substrate can be increased, the surface area of the substrate can be increased, and the heat dissipation effect of the protection plate 30 itself can be improved.

The protection board 30 is a PCM (protection circuit module Protection Circuit Module), and the protection board 30 can control charging and discharging of the battery cell and transmit information of the battery cell; the battery cell 10 provides energy storage for the battery.

As shown in fig. 1, the first side wall 11 is provided with a receiving groove 111 extending along the first direction of the battery cell 10, both ends of the receiving groove 111 in the first direction of the battery cell 10 penetrate through the battery cell 10, one end of the receiving groove 111 in the thickness direction of the battery cell 10 penetrates through the front face 15 of the battery cell 10, and the protection plate 30 is disposed in the receiving groove 111 and parallel to the front face 15 of the battery cell 10. Since both ends of the accommodating groove 111 in the first direction of the battery cell 10 penetrate the battery cell 10, one end of the accommodating groove 111 in the thickness direction of the battery cell 10 penetrates the front face 15 of the battery cell 10, and the protection plate 30 is disposed in the accommodating groove 111, the protection plate 30 can be exposed through the notch of the accommodating groove 111 on the front face 15 of the battery cell 10, and since the extending direction of the protection plate 30 is parallel to the front face 15 of the battery cell 10, the exposed area of the protection plate 30 through the notch of the accommodating groove 111 on the front face 15 of the battery cell 10 is increased, and the heat dissipation effect of the protection plate 30 is improved.

The notch of the receiving groove 111 on the front surface 15 of the cell 10 means a notch formed in the front surface 15 of the cell 10 by penetrating one end of the receiving groove 111 in the thickness direction of the cell 10 through the front surface 15 of the cell 10.

As shown in fig. 1, the connection member 40 includes a first connection section 41 and a second connection section 42 connected, the first connection section 41 being disposed in the receiving groove 111 and electrically connected with the protection plate 30, and the second connection section 42 being disposed on the second sidewall 12 and electrically connected with the tab 20. With the above-described connection member 40, the connection reliability and connection efficiency of the connection member 40 and the protection plate 30 are improved by disposing the first connection section 41 in the accommodation groove 111, and the connection reliability and connection efficiency of the connection member 40 and the tab 20 are improved by disposing the second connection section 42 on the second side wall 12.

As shown in fig. 1, the first connection section 41 includes a first plate section 411 and a second plate section 412, the first plate section 411 is disposed on the bottom wall of the accommodation groove 111 and parallel to the first side wall 11, one end of the first plate section 411 facing the second side wall 12 is connected with the second connection section 42, the second plate section 412 is sandwiched between the side wall of the accommodation groove 111 and the protection plate 30, the second plate section 412 is parallel to the front face 15 of the battery cell 10, and one end of the second plate section 412 facing the battery cell 10 in the second direction of the battery cell 10 is connected with one end of the first plate section 411 facing the battery cell 10 in the thickness direction of the battery cell 10. Since the end of the first plate section 411 facing the second side wall 12 is connected with the second connection section 42, the end of the second plate section 412 facing the battery cell 10 in the second direction of the battery cell 10 is connected with the end of the first plate section 411 facing the battery cell 10 in the thickness direction of the battery cell 10, and the second plate section 412 is sandwiched between the side wall of the accommodation groove 111 and the protection plate 30, the connection effect of the first connection section 41 and the second connection section 42 and the connection effect of the first connection section 41 and the protection plate 30 can be improved.

The bottom wall of the accommodating groove 111 refers to an inner wall of the accommodating groove 111 parallel to the first side wall 11, and the side wall of the accommodating groove 111 refers to an inner wall of the accommodating groove 111 parallel to the front surface 15 of the cell 10.

As shown in fig. 1, the connection member 40 includes a first connection section 41 and a second connection section 42 connected, the first connection section 41 is disposed on the first sidewall 11 and electrically connected with the protection plate 30, the second connection section 42 is disposed on the second sidewall 12 and electrically connected with the tab 20, and the second connection section 42 is disposed on the outer side of the second sidewall 12. The second connecting section 42 can be attached to the second side wall 12, so that the size of the second connecting section 42 in the first direction of the battery cell 10 is reduced, and the battery accommodating space occupied by the protection plate 30 is increased.

As shown in fig. 4, the tab 20 includes a first bending section 21 and a second bending section 22, the first bending section 21 is disposed on one side of the second connecting section 42 away from the battery cell 10, the first bending section 21 is electrically connected to the battery cell 10 at one end of the battery cell 10 facing the back of the battery cell 10 in the thickness direction, the second bending section 22 is sandwiched between the second connecting section 42 and the second side wall 12, and the second bending section 22 is connected to one end of the battery cell 10 facing the front 15 of the battery cell 10 in the thickness direction of the battery cell 10 at one end of the first bending section 21 facing the front 15 of the battery cell 10 in the thickness direction of the battery cell 10. The second connecting section 42 is clamped between the first bending section 21 and the second bending section 22, connection reliability of the tab 20 and the second connecting section 42 is improved, space required by the tab 20 in the extending direction of the first side wall 11 can be reduced, battery accommodating space occupied by the protection plate is increased, the volume of the protection plate is increased, heat dissipation effect of the protection plate is improved, and the protection plate can bear charging current when the battery is quickly charged and meet heat dissipation requirements of the battery when the battery is quickly charged.

As shown in fig. 2 and 3, the number of the tabs 20 is two, and the two tabs 20 respectively correspond to the positive electrode output end and the negative electrode output end of the battery cell 10, wherein the arrangement positions of the two tabs 20 have the following two embodiments:

(1) In the first embodiment, two tabs 20 are adjacently disposed at one end of the second sidewall 12 in the second direction of the battery cell 10;

(2) In the second embodiment, two tabs 20 are respectively disposed at both ends of the second sidewall 12 in the second direction of the battery cell 10.

As shown in fig. 1, the battery further includes a head gummed paper 51 or a potting adhesive layer provided on the first side wall 11 and covering the outer side of the protection plate 30. The head gummed paper 51 or the filling adhesive layer can play an insulating protection role on the protection board 30.

As shown in fig. 1, the battery further includes a first side adhesive tape 52, the first side adhesive tape 52 is attached to the second side wall 12, the tab 20 and the outer side of the connecting member 40, and the battery further includes a second side adhesive tape 53, where the second side adhesive tape 53 is attached to the outer side of the third side wall 13 of the battery cell 10 opposite to the second side wall 12. The first side adhesive tape 52 can play an insulating role in protecting the second side wall 12, the tab 20, and the connector 40, and the second side adhesive tape 53 can play an insulating role in protecting the third side wall 13.

Specifically, the protection plate 30 and the second plate section 412 are welded by laser, the first connection section 41 is placed in the accommodating groove 111, the first connection section 41 is fixed in the accommodating groove 111 by fixing means such as double sided tape, the tab 20 and the battery core 10 are welded by laser, the second bending section 22 is bent inwards by 180 ° relative to the first bending section 21, the second connection section 42 is clamped between the first bending section 21 and the second bending section 22, the length of the second bending section 22 is cut in advance, the second bending section 22 is prevented from piercing the plastic-aluminum film of the battery core 10, after the tab 20 and the battery core 10 are welded by laser, the first side adhesive paper 52 can be attached to the second side wall 12, the tab 20 and the outer side of the connection piece 40 before the second bending section 22 is bent, and the second side adhesive paper 53 can be attached to the third side wall 13.

As shown in fig. 1, the protection plate 30 includes a PCB31 and an FPC32, the PCB31 is disposed at the first sidewall 11, the connection member 40 is electrically connected to the PCB31, and the FPC32 is electrically connected to the PCB 31. The electrical connection of the battery and the terminal device can be achieved using the FPC32 electrically connected to the PCB 31.

Another embodiment of the present utility model provides a terminal device including the battery provided above. Therefore, the terminal device provided in this embodiment can also be used to set the protection plate 30 on the first side wall 11 by setting the tab 20 on the second side wall 12, thereby reducing the battery accommodating space occupied by the tab 20, increasing the battery accommodating space occupied by the protection plate 30, increasing the volume of the protection plate 30, improving the heat dissipation effect of the protection plate 30, enabling the protection plate 30 to bear the charging current when the battery is charged quickly and meeting the heat dissipation requirement of the battery, and further improving the quick charging effect of the battery.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A battery, the battery comprising:

A cell (10) having a first side wall (11) extending in a first direction of the cell (10) and a second side wall (12) extending in a second direction of the cell (10);

The electrode lug (20) is arranged on the second side wall (12) and is electrically connected with the battery cell (10);

A protective plate (30) provided on the first side wall (11);

and one end of the connecting piece (40) extends to the first side wall (11) and is electrically connected with the protection plate (30), and the other end of the connecting piece (40) extends to the second side wall (12) and is electrically connected with the tab (20).

2. The battery according to claim 1, wherein the first side wall (11) is provided with a receiving groove (111) extending in a first direction of the battery cell (10), both ends of the receiving groove (111) in the first direction of the battery cell (10) penetrate the battery cell (10), one end of the receiving groove (111) in a thickness direction of the battery cell (10) penetrates a front face (15) of the battery cell (10), and the protection plate (30) is disposed in the receiving groove (111) and parallel to the front face (15) of the battery cell (10).

3. The battery according to claim 2, characterized in that the connection member (40) includes a first connection section (41) and a second connection section (42) connected, the first connection section (41) being disposed in the receiving groove (111) and electrically connected with the protection plate (30), the second connection section (42) being disposed on the second side wall (12) and electrically connected with the tab (20).

4. A battery according to claim 3, characterized in that the first connection section (41) comprises:

A first plate section (411) disposed on the bottom wall of the accommodating groove (111) and parallel to the first side wall (11), one end of the first plate section (411) facing the second side wall (12) being connected to the second connecting section (42);

The second plate section (412) is clamped between the side wall of the accommodating groove (111) and the protective plate (30), the second plate section (412) is parallel to the front surface (15) of the battery cell (10), one end of the second plate section (412) facing the battery cell (10) in the second direction of the battery cell (10) is connected with one end of the first plate section (411) facing the battery cell (10) in the thickness direction of the battery cell (10).

5. The battery according to claim 1, characterized in that the connection member (40) includes a first connection section (41) and a second connection section (42) that are connected, the first connection section (41) being provided on the first side wall (11) and electrically connected with the protection plate (30), the second connection section (42) being provided on the second side wall (12) and electrically connected with the tab (20), the second connection section (42) being provided on the outside of the second side wall (12).

6. The battery according to claim 5, wherein the tab (20) includes:

A first bending section (21) which is arranged on one side of the second connecting section (42) far away from the battery cell (10) in a covering manner, wherein one end of the first bending section (21) facing the back surface of the battery cell (10) in the thickness direction of the battery cell (10) is electrically connected with the battery cell (10);

The second bending section (22) is clamped between the second connecting section (42) and the second side wall (12), one end of the second bending section (22) facing the front face (15) of the battery cell (10) in the thickness direction of the battery cell (10) is connected with one end of the first bending section (21) facing the front face (15) of the battery cell (10) in the thickness direction of the battery cell (10).

7. The battery according to any one of claims 1 to 6, further comprising a head gummed paper (51) or a potting gum layer provided on the first side wall (11) and covering the outside of the protection plate (30).

8. The battery according to any one of claim 1 to 6, wherein,

The battery further comprises first side gummed paper (52), wherein the first side gummed paper (52) is attached to the outer sides of the second side wall (12), the tab (20) and the connecting piece (40); and/or the number of the groups of groups,

The battery also comprises second side gummed paper (53), and the second side gummed paper (53) is attached to the outer side of a third side wall (13) of the battery cell (10) which is opposite to the second side wall (12).

9. The battery according to any one of claims 1 to 6, characterized in that the protective plate (30) comprises:

-a PCB (31) arranged on said first side wall (11), said connection member (40) being electrically connected to said PCB (31);

-an FPC (32), the FPC (32) being electrically connected to the PCB (31).

10. A terminal device, characterized in that it comprises a battery according to any one of claims 1 to 9.