Battery pack

Abstract

The utility model relates to a battery pack. The battery pack comprises a frame body, the frame body comprises a bottom plate and a side plate which are connected, the side plate extends in the first direction and protrudes out of the bottom plate, the bottom plate and the side plate define a containing cavity, and the side plate is provided with an outer wall face far away from the containing cavity; the first protective film is arranged on the surface of one side, far away from the bottom plate, of the accommodating cavity; the connecting line extends along the second direction and is positioned on one side, far away from the accommodating cavity, of the side plate; wherein at least one of the frame body and the first protective film is provided with a fixing piece, the fixing piece at least partially wraps the outer wall of the connecting line, and the fixing piece is used for fixing the connecting line on the outer wall surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the battery technical field, specifically relates to a battery pack. BACKGROUND

[0002] In the era of rapid development of information technology, notebook computers have become the first choice for people in their work and life due to their portability and increasingly superior performance. The increasing market demand has also driven the development of notebook computer batteries. The notebook computer battery pack is a battery pack used in a notebook computer. The connecting line is a connecting form between the battery cells in the notebook computer battery pack and the notebook computer. The positioning of the connector port on the connecting line is very important. If the connecting line is seriously offset or even damaged during packaging, transportation and other steps, it will affect the use of the entire notebook computer battery pack.

[0003] At present, a piece of adhesive paper is usually additionally provided on the finished battery pack to fix the connecting line. Although this design can fix the connecting line to a certain extent, it has the following disadvantages: the additional adhesive paper and the adhesive paper attaching process increase the production cost of the battery pack; the large size of the additional adhesive paper easily affects the appearance of the battery pack; and the small size of the additional adhesive paper is insufficient in attaching strength and is prone to warping and falling off, which causes the connecting line to be offset and affects the use of the entire notebook computer battery pack. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a battery pack which can solve the technical problems of the prior art, such as the increase in production cost, the large size of the additional adhesive paper affecting the appearance of the battery pack, and the small size of the additional adhesive paper being insufficient in attaching strength and being prone to warping and falling off, which causes the connecting line to be offset and affects the use of the entire notebook computer battery pack.

[0005] To solve the above problems, the utility model provides a battery pack which has a first direction, a second direction and a third direction intersecting with each other. The battery pack comprises: a frame body comprising a bottom plate and a side plate connected to each other, the side plate extending along the first direction and protruding from the bottom plate, the bottom plate and the side plate surrounding a receiving cavity, and the side plate having an outer wall surface away from the receiving cavity; a first protective film arranged on the surface of the side of the receiving cavity away from the bottom plate; and a connecting line extending along the second direction and located on the side of the side plate away from the receiving cavity. At least one of the first protective film and the frame body has a fixing member, the fixing member at least partially wrapping the outer wall of the connecting line, and the fixing member being used for fixing the connecting line to the outer wall surface.

[0006] In some embodiments, the fixing member comprises a first fixing member, the first protective film comprises a main body portion and the first fixing member, the main body portion is arranged on the surface of the side of the receiving cavity away from the bottom plate, and the first fixing member protrudes from the end of the main body portion close to the connecting line along the third direction.

[0007] In some embodiments, the first fixing member comprises a first fixing portion, a second fixing portion and a third fixing portion connected together, the first fixing portion and the second fixing portion are located on two sides of the connection line in the first direction respectively, and the third fixing portion is connected between the first fixing portion and the second fixing portion, and the first fixing portion protrudes from the main body portion in the third direction to one end of the main body portion close to the connection line.

[0008] In some embodiments, an end of the second fixing portion away from the third fixing portion extends in the third direction to cover a surface of the bottom plate away from the accommodation cavity.

[0009] In some embodiments, a surface of the first fixing portion away from the second fixing portion is flush with a surface of the main body portion away from the bottom plate.

[0010] In some embodiments, the first fixing member is integrally formed with the main body portion.

[0011] In some embodiments, the fixing member comprises a second fixing member fixedly connected to the outer wall surface.

[0012] In some embodiments, the second fixing member comprises at least one first clamping portion and at least one second clamping portion, the first clamping portion and the second clamping portion are arranged in the second direction; the first clamping portion has a first limiting portion and a second limiting portion connected together, the first limiting portion extends in the third direction and is connected to one end of the outer wall surface in the first direction, and the second limiting portion extends in the first direction and is connected to a side of the first limiting portion away from the outer wall surface; and the second clamping portion has a third limiting portion, the third limiting portion extends in the third direction and is connected to the other end of the outer wall surface in the first direction.

[0013] In some embodiments, the first clamping portion and the second clamping portion are arranged alternately.

[0014] In some embodiments, the second clamping portion further has a fourth limiting portion connected to the third limiting portion, the fourth limiting portion extends in the first direction and is connected to a side of the third limiting portion away from the outer wall surface.

[0015] In some embodiments, the second fixing member protrudes from the outer wall surface in the third direction, and the second fixing member is integrally formed with the side plate.

[0016] The utility model discloses the advantage is: the frame and the first protective film of at least one of the application has fixing piece, and fixing piece is at least partly wrapped on the outer wall of connecting wire, and fixing piece is used for fixing connecting wire on the outer wall surface.

[0017] The application can also adjust the structure of the existing frame of the battery pack, form a second fixing piece on the side plate, and fix the second fixing piece on the side plate. Then, the second fixing piece is used to fix the connecting wire on the outer wall surface. This can avoid the technical problems of the prior art, such as the size of the additional adhesive tape being too large to affect the appearance of the battery pack, the size of the additional adhesive tape being too small to cause warping and falling off due to insufficient adhesion strength, and the connecting wire being offset to affect the use of the entire notebook battery pack. The fixing effect of the second fixing piece on the connecting wire is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0019] Figure 1 is a plan view of the battery pack of the embodiment 1 of the present application;

[0020] Figure 2 is a structural schematic view of the battery pack of the embodiment 1 of the present application;

[0021] Figure 3 is an exploded schematic view of the battery pack of the embodiment 1 of the present application;

[0022] Figure 4 is a structural schematic view of the first protective film of the embodiment 1 of the present application;

[0023] Figure 5 is a plan view of the battery pack of the embodiment 2 of the present application;

[0024] Figure 6 is a structural schematic diagram of the battery pack of Embodiment 2 of the present application;

[0025] Figure 7 is an exploded schematic diagram of the battery pack of Embodiment 2 of the present application;

[0026] Figure 8 is a structural schematic diagram of the frame of Embodiment 2 of the present application.

[0027] Explanation of Reference Signs:

[0028] 100, battery pack;

[0029] 1, frame; 2, first protective film; 3, connecting wire; 4, fixing member; 5, second protective film.

[0030] 11, bottom plate; 12, side plate; 13, second fixing member; 101, accommodating cavity; 121, outer wall surface; 131, first engaging portion; 132, second engaging portion; 1311, first limiting portion; 1312, second limiting portion; 1321, third limiting portion; 1322, fourth limiting portion;

[0031] 21, main body portion; 22, first fixing member; 221, first fixing portion; 222, second fixing portion; 223, third fixing portion. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present application are described in detail below with reference to the accompanying drawings, to completely introduce the technical contents of the present application to the person skilled in the art, to prove by example that the present application can be implemented, to make the technical contents disclosed by the present application more clear, and to make the person skilled in the art more easily understand how to implement the present application. However, the present application can be embodied in many different forms of embodiments, and the protection scope of the present application is not limited to the embodiments mentioned in the text, and the description of the embodiments below is not used to limit the scope of the present application.

[0033] The direction terms mentioned in the present application, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side surface", etc., are only the directions in the drawings, and the direction terms used in the text are used to explain and describe the present application, and are not used to limit the protection scope of the present application.

[0034] In the drawings, the same numbers are used to represent the same components, and the components with similar structures or functions are represented by similar numbers. In addition, in order to facilitate understanding and description, the size and thickness of each component shown in the drawings are arbitrarily shown, and the present application does not limit the size and thickness of each component.

[0035] Embodiment 1

[0036] Referring to Figure 1 , Figure 2 and Figure 3 , Figure 1 is a plan view of the battery pack of Embodiment 1 of the present application; Figure 2 is a structural view of the battery pack of Embodiment 1 of the present application; Figure 3 is an exploded view of the battery pack of Embodiment 1 of the present application. This embodiment provides a battery pack 100. The battery pack 100 has a first direction M, a second direction N and a third direction P intersecting with each other. In this embodiment, the first direction M, the second direction N and the third direction P are perpendicular to each other.

[0037] Referring to Figure 1 , Figure 2 and Figure 3 , the battery pack 100 comprises a frame 1, a first protective film 2, a connecting wire 3 and a fixing member 4.

[0038] Referring to Figure 1 , Figure 2 and Figure 3 , the frame 1 comprises a bottom plate 11 and a side plate 12 connected with each other. The side plate 12 extends along the first direction M and protrudes from the bottom plate 11, and the bottom plate 11 and the side plate 12 enclose a receiving cavity 101. The side plate 12 has an outer wall surface 121 away from the receiving cavity 101. In this embodiment, the side plate 12 is integrally formed with the bottom plate 11. In other embodiments, the side plate 12 can be connected to the bottom plate 11 by welding or other processes according to actual conditions.

[0039] Referring to Figure 1 , Figure 2 and Figure 3 , the first protective film 2 is arranged on the surface of the side of the receiving cavity 101 away from the bottom plate 11. The monomer battery (not shown in the figure) and other structures in the receiving cavity 101 are protected by the first protective film 2. In this embodiment, the first protective film 2 is a Mylar film.

[0040] Referring to Figure 1 , Figure 2 and Figure 3 , the connecting wire 3 extends along the second direction N and is located on the side of the side plate 12 away from the receiving cavity 101. It is worth noting that the connecting wire 3 extending along the second direction N here means that the terminal wire for connecting the battery protection plate (not shown in the figure) of the battery pack 100 and the external device has a part extending along the second direction N, and it is not limited that the terminal wire for connecting the battery protection plate (not shown in the figure) of the battery pack 100 and the external device extends along the second direction N entirely.

[0041] In some embodiments, at least one of the first protective film 2 and the frame 1 has the fixing member 4, the fixing member 4 at least partially wraps the outer wall of the connecting wire 3, and the fixing member 4 is used for fixing the connecting wire 3 on the outer wall surface 121.

[0042] Referring to Figure 4 , Figure 4 , Figure 4 and Figure 1 , Figure 2 is a structural schematic diagram of the first protective film of Embodiment 1. The fixing member 4 comprises a first fixing member 22. The first protective film 2 comprises a main body part 21 and a fixing member, the main body part 21 is arranged on the surface of the side of the accommodating cavity 101 away from the bottom plate 11. The first fixing member 22 protrudes from the end of the main body part 21 close to the connecting wire 3 along the third direction P. That is, the structure of the existing first protective film 2 of the battery pack 100 can be adjusted, so that the first protective film 2 comprises a main body part 21 and a first fixing member 22 protruding from the main body part 21, thereby avoiding additional material, and the first fixing member 22 can be used to fix the connecting wire 3 without increasing the cost.

[0043] Referring to Figure 3 , the first fixing member 22 comprises a first fixing part 221, a second fixing part 222 and a third fixing part 223 connected with each other. The first fixing part 221 and the second fixing part 222 are respectively located on both sides of the connecting wire 3 in the first direction M, and the third fixing part 223 is connected between the first fixing part 221 and the second fixing part 222. The position of the connecting wire 3 in the first direction M is defined by the first fixing part 221 and the second fixing part 222, and the position of the connecting wire 3 in the third direction P is defined by the third fixing part 223 and the outer wall surface 121.

[0044] Referring to Figure 4 , Figure 1 , Figure 2 and Figure 3 , the first fixing part 221 protrudes from the end of the main body part 21 close to the connecting wire 3 along the third direction P, and the surface of the side of the first fixing part 221 away from the second fixing part 222 is flush with the surface of the side of the main body part 21 away from the bottom plate 11. That is, the end of the first fixing part 221 away from the third fixing part 223 does not extend and cover the side of the main body part 21 away from the accommodating cavity 101.

[0045] Referring to Figure 4 , Figure 1 , Figure 2 and Figure 3 , the end of the second fixing part 222 away from the third fixing part 223 extends and covers the surface of the side of the bottom plate 11 away from the accommodating cavity 101 along the third direction P. That is, the second fixing part 222 extends and covers the bottom plate 11, thereby further improving the fixing effect of the second fixing part 222 on the connecting wire 3.

[0046] Referring to Figure 4 , Figure 3 , Figure 5 andFigure 6 In the embodiment, the first fixing member 22 is integrally formed with the main body 21, so that the fixing effect of the first fixing member 22 on the connecting wire 3 can be improved, and the first fixing member 22 is prevented from being too small to cause insufficient adhesion and peeling. Since the fixing effect of the first fixing member 22 on the connecting wire 3 is good, the size of the first fixing member 22 is smaller than the size of the additional adhesive paper in the prior art under the same adhesion strength, and the size of the first fixing member 22 is prevented from being too large to affect the appearance of the battery pack.

[0047] Please refer to Figure 7 The battery pack 100 further includes a second protective film 5. The second protective film 5 is arranged on the side of the bottom plate 11 away from the accommodating cavity 101. In the embodiment, the second protective film 5 is a Mylar film.

[0048] Embodiment 2

[0049] Please refer to Figure 8 , Figure 5 , Figure 6 and Figure 7 , Figure 8 is a plan view of the battery pack of Embodiment 2 of the present application; Figure 5 is a structural view of the battery pack of Embodiment 2 of the present application; Figure 6 is an exploded view of the battery pack of Embodiment 2 of the present application; Figure 7 is a structural view of the frame of Embodiment 2 of the present application. The embodiment includes most of the technical features of Embodiment 1. The difference between the embodiment and Embodiment 1 is that, in the embodiment, the fixing member 4 includes a second fixing member 13, and the second fixing member 13 is fixedly connected to the outer wall surface 121. The structure of the existing frame 1 of the battery pack 100 is adjusted in the embodiment, the second fixing member 13 is formed on the side plate 12, the second fixing member 13 is fixedly connected to the side plate 12, and then the connecting wire 3 is fixed to the outer wall surface 121 by using the second fixing member 13. The technical problems of the prior art, such as the large size of the additional adhesive paper affecting the appearance of the battery pack, and the small size of the additional adhesive paper causing insufficient adhesion and peeling to cause the connecting wire to deviate and affect the use of the entire notebook battery pack, are avoided, and the fixing effect of the second fixing member 13 on the connecting wire 3 is improved. Compared with the process (obtaining additional adhesive paper, removing a release film, arranging a connecting wire, and attaching adhesive paper) of the prior art of fixing the connecting wire 3 by additionally increasing adhesive paper, the present application only needs to arrange the connecting wire between the second fixing member 13 and the outer wall surface 121, so that the assembly efficiency is greatly improved.

[0050] Please refer to Figure 8 , Figure 5 , Figure 6 and Figure 7The second fixing member 13 comprises at least one first clamping portion 131 and at least one second clamping portion 132. The first clamping portion 131 and the second clamping portion 132 are arranged at intervals along the second direction N. In this way, a gap can be reserved between the first clamping portion 131 and the second clamping portion 132, so as to facilitate the placement of the connecting wire 3 between the first clamping portion 131 and the outer wall surface 121 and between the second clamping portion 132 and the outer wall surface 121.

[0051] Please refer to Figure 8 , Figure 5 , Figure 6 and Figure 7 The first clamping portion 131 has a first limiting portion 1311 and a second limiting portion 1312 connected thereto. The first limiting portion 1311 extends along the third direction P and is connected to one end of the outer wall surface 121 in the first direction M, and the second limiting portion 1312 extends along the first direction M and is connected to one side of the first limiting portion 1311 away from the outer wall surface 121. Specifically, the first limiting portion 1311 extends along the third direction P and is connected to the upper end of the outer wall surface 121 in the first direction M.

[0052] Please refer to Figure 8 , Figure 5 , Figure 6 and Figure 7 The second clamping portion 132 has a third limiting portion 1321 extending along the third direction P and connected to the other end of the outer wall surface 121 in the first direction M. Specifically, the third limiting portion 1321 extends along the third direction P and is connected to the lower end of the outer wall surface 121 in the first direction M. By arranging the first limiting portion 1311 and the third limiting portion 1321 at the upper end and the lower end of the outer wall surface 121 in the first direction M respectively, the first limiting portion 1311 and the third limiting portion 1321 cooperate to limit the position of the connecting wire 3 in the first direction M. By extending the second limiting portion 1312 along the first direction M and connecting it to one side of the first limiting portion 1311 away from the outer wall surface 121, the second limiting portion 1312 cooperates with the outer wall surface 121 to limit the position of the connecting wire 3 in the third direction P.

[0053] Please refer to Figure 8 , Figure 8 , Figure 5 and Figure 6 The first clamping portion 131 and the second clamping portion 132 are arranged alternately. In this embodiment, the second fixing member 13 comprises two first clamping portions 131 and one second clamping portion 132. The two first clamping portions 131 are located on both sides of the second clamping portion 132 in the second direction N. By arranging the first clamping portion 131 and the second clamping portion 132 alternately, the connecting wire 3 can be fixed uniformly.

[0054] Please refer to Figure 7In the embodiment, the second clamping portion 132 further has a fourth limiting portion 1322 connected with the third limiting portion 1321, the fourth limiting portion 1322 extends along the first direction M and is connected to the side of the third limiting portion 1321 away from the outer wall surface 121. The fourth limiting portion 1322 cooperates with the outer wall surface 121 to further limit the position of the connecting line 3 in the third direction P. The fourth limiting portion 1322 and the second limiting portion 1312 uniformly fix the connecting line 3. In other embodiments, the fourth limiting portion 1322 on the second clamping portion 132 can be removed according to actual needs.

[0055] Please refer to Figure 8 , ​ , ​ and ​ , the second fixing member 13 protrudes from the outer wall surface 121 along the third direction P, and the second fixing member 13 is integrally formed with the side plate 12. In this way, the fixing effect of the second fixing member 13 on the connecting line 3 can be improved. In other embodiments, the second fixing member 13 can be fixed to the outer wall surface 121 by welding or other processes according to actual conditions.

[0056] The battery pack provided by the present application is described in detail above, and the principles and implementation modes of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation modes and application ranges will be changed, and the above description should not be understood as limiting the present application.

Claims

1. A battery pack, characterized by, The battery pack has a first direction (M), a second direction (N) and a third direction (P) intersecting with each other, and comprises: a frame (1) comprising a bottom plate (11) and a side plate (12) connected to each other, the side plate (12) extending along the first direction (M) and protruding from the bottom plate (11), the bottom plate (11) and the side plate (12) enclosing a receiving cavity (101), the side plate (12) having an outer wall surface (121) away from the receiving cavity (101); a first protective film (2) arranged on a surface of a side of the receiving cavity (101) away from the bottom plate (11); a connecting line (3) extending along the second direction (N) and located on a side of the side plate (12) away from the receiving cavity (101); wherein at least one of the first protective film (2) and the frame (1) has a fixing member (4) at least partially wrapped on an outer wall of the connecting line (3), the fixing member (4) being used for fixing the connecting line (3) on the outer wall surface (121).

2. The battery pack of claim 1, wherein, The fixing member (4) comprises a first fixing member (22), the first protective film (2) comprises a main body portion (21) and the first fixing member (22), the main body portion (21) is arranged on a surface of a side of the receiving cavity (101) away from the bottom plate (11), and the first fixing member (22) protrudes from one end of the main body portion (21) close to the connecting line (3) along the third direction (P).

3. The battery pack of claim 2, wherein, The first fixing member (22) comprises a first fixing portion (221), a second fixing portion (222) and a third fixing portion (223) connected to each other, the first fixing portion (221) and the second fixing portion (222) are located on two sides of the connecting line (3) in the first direction (M) respectively, the third fixing portion (223) is connected between the first fixing portion (221) and the second fixing portion (222), and the first fixing portion (221) protrudes from one end of the main body portion (21) close to the connecting line (3) along the third direction (P).

4. The battery pack of claim 3, wherein, An end of the second fixing portion (222) away from the third fixing portion (223) extends along the third direction (P) and covers a surface of a side of the bottom plate (11) away from the receiving cavity (101).

5. The battery pack of claim 3, wherein, A surface of a side of the first fixing portion (221) away from the second fixing portion (222) is flush with a surface of a side of the main body portion (21) away from the bottom plate (11).

6. The battery pack of claim 2, wherein, The first fixing member (22) is integrally formed with the main body portion (21).

7. The battery pack of claim 1, wherein, The fixing member (4) comprises a second fixing member (13) fixedly connected to the outer wall surface (121).

8. The battery pack of claim 7, wherein, The second fixing member (13) comprises at least one first clamping portion (131) and at least one second clamping portion (132), the first clamping portion (131) and the second clamping portion (132) are arranged at intervals along the second direction (N); The first engaging part (131) has a first limiting part (1311) and a second limiting part (1312) connected thereto, the first limiting part (1311) extends along the third direction (P) and is connected to one end of the outer wall surface (121) in the first direction (M), and the second limiting part (1312) extends along the first direction (M) and is connected to a side of the first limiting part (1311) away from the outer wall surface (121); The second engaging part (132) has a third limiting part (1321) extending along the third direction (P) and connected to the other end of the outer wall surface (121) in the first direction (M).

9. The battery pack of claim 8, wherein, The first engaging part (131) and the second engaging part (132) are arranged alternately.

10. The battery pack of claim 8, wherein, The second engaging part (132) further has a fourth limiting part (1322) connected to the third limiting part (1321), the fourth limiting part (1322) extends along the first direction (M) and is connected to a side of the third limiting part (1321) away from the outer wall surface (121).

11. The battery pack of claim 7, wherein, The second fixing part (13) protrudes from the outer wall surface (121) along the third direction (P), and the second fixing part (13) is integrally formed with the side plate (12).

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