Battery pack and mobile power supply

Abstract

According to the technical scheme, the battery pack is characterized by comprising a plurality of battery blocks, the adjacent battery blocks are connected through a connecting piece, the battery pack further comprises two clamps, the two clamps are connected through a connecting strip, the battery blocks are clamped between the two clamps, and the two ends of the connecting strip are detachably connected with the clamps respectively; according to the utility model, the clamp force is applied to the battery cell through the clamping plate and the connecting strip, so that the safety and the electrical property stability of the battery cell in the use process are improved, the service life of the battery cell is prolonged, the complexity and the time consumption in the disassembly and assembly process are reduced, and the universality and the expandability are good.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile power supply technical field, more specifically, it relates to a battery pack and mobile power supply. BACKGROUND

[0002] In the field of portable electronic devices and electric vehicles, mobile power supply as a key component, the structure design and fixing mode of the internal battery pack are crucial to the overall performance, safety and reliability of the device. Traditionally, the battery pack in the mobile power supply shell is composed of multiple battery blocks, which are often bound by PE packing tape or steel tape, but there are obvious shortcomings.

[0003] PE packing tape has the advantages of low cost and simple operation, but its strength and durability are limited, and it is difficult to withstand the stress changes caused by long-term use of vibration, impact and temperature changes, which may cause relative movement between battery blocks, affecting the stability and safety of the battery pack.

[0004] Although steel tape has high strength and stability, its cost is high, and the installation and disassembly process is relatively complex, which is not conducive to the portability and maintenance convenience of the mobile power supply; therefore, a new type of battery pack fixing method needs to be designed to solve the above problems. SUMMARY

[0005] To solve the above problems, the utility model provides the following technical scheme:

[0006] A battery pack, comprising a plurality of battery blocks, adjacent battery blocks being connected by a connecting piece, further comprising two clamps, the two clamps being connected by a connecting strip, the two clamps clamping the plurality of battery blocks in the middle, and the two ends of the connecting strip being detachably connected with the clamps.

[0007] The utility model is further provided as follows: one end of the connecting piece is fixed to the top of the battery block by a bolt, and the other end is fixed to the top of the adjacent battery block by a bolt.

[0008] The utility model is further provided as follows: the adjacent connecting pieces are respectively close to the front and rear ends of the top of the battery block.

[0009] The utility model is further provided as follows: the connecting strip is arranged along the arrangement direction of the plurality of battery blocks, and the two ends of the connecting strip are respectively fixed to the side wall of the clamp by a bolt, thereby realizing detachable connection.

[0010] The utility model is further provided as follows: the two ends of the connecting strip are respectively provided with through holes, and the bolt is threadedly connected with the side wall of the clamp after penetrating through the through holes, and at least one of the through holes is a long hole opened along the length direction of the connecting strip.

[0011] The utility model further sets up: two the connecting strips are arranged in the front and back both sides of the clamp, two the connecting strip are respectively close to the upper and lower both ends of the clamp.

[0012] The utility model further sets up: the clamp covers the side wall of the outermost battery block.

[0013] In addition, the utility model discloses a mobile power supply, including the battery pack of above.

[0014] Compared with the prior art, the utility model has at least the following advantages:

[0015] 1, adopt the clamping and fixing structure of both sides of the clamping plate to the battery cell with clamp force, and the battery block is connected with each other through the connecting sheet, effectively enhances the stability of the battery cell in the mobile power supply shell, reduces the looseness and damage caused by vibration and impact, improves the safety, the electric performance stability and the service life of the battery cell in the use process, compared with the traditional PE packing belt or steel band fixed mode, the material cost is also lower, and the complexity and time consumption of the dismounting process are reduced, only need to separate the connecting strip end and the clamp, when adapting the battery pack of different sizes, only need to change the length of the connecting strip, has good universality and scalability.

[0016] 2, the adjacent connecting sheet is close to the front and back both ends of the battery block respectively, through staggered layout, not only plays the effect of giving way, but also can make the connection between the battery block more stable.

[0017] 3, the through hole of connecting strip both ends is at least one long hole set up along the length direction, makes the both ends of connecting strip more easily align with the screw hole on the clamp, avoids the influence of slight manufacturing error. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole schematic view of first embodiment;

[0019] Figure 2 It is the structural schematic view of clamp;

[0020] Figure 3 It is the structural schematic view of connecting sheet;

[0021] Figure 4 It is the explosion schematic view of second embodiment.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, battery block;2, connecting sheet;3, clamp;4, connecting strip;5, through hole;6, long hole;7, protection sheet;8, barb;9, shell;10, sealing cover;11, handle. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0025] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] First embodiment:

[0027] A battery pack, as shown in Figures 1 to 3 , comprising a plurality of battery blocks 1, adjacent battery blocks 1 are connected by connecting pieces 2, and further comprising two clamps 3, the two clamps 3 are connected by a connecting strip 4, the two clamps 3 hold a plurality of battery blocks 1 in the middle, and the two ends of the connecting strip 4 are respectively detachably connected with the clamps 3.

[0028] One end of the connecting piece 2 is fixed to the top of the battery block 1 by a bolt, and the other end is fixed to the top of the adjacent battery block 1 by a bolt, so as to connect the two battery blocks 1, the battery blocks 1 are connected with the adjacent battery blocks 1 in turn, so as to connect the battery pack as a whole, the shell on the top of the battery block 1 protrudes a lug, the connecting piece 2 is attached to the lug, and the bolt is threadedly connected with the lug through the hole on the connecting piece 2 to realize fixation.

[0029] The adjacent connecting pieces 2 are respectively close to the front and rear ends of the top of the battery block 1, so when the battery block 1 is connected with the adjacent battery blocks 1 on both sides, one connecting piece 2 is fixed at the front end and the other connecting piece 2 is fixed at the rear end, and through the staggered arrangement of the connecting pieces 2, not only the effect of giving way is achieved, but also the connection between the battery blocks 1 is more stable.

[0030] The connecting piece 2 is covered with a protective piece 7, the protective piece 7 is attached to the top of the connecting piece 2, the bottom of the protective piece 7 protrudes a plurality of barbs 8, the protective piece 7 itself has a certain elasticity, and the barbs 8 at the bottom of the protective piece 7 are clamped at the suspended position in the middle of the connecting piece 2 by pressing with external force, so as to fix the protective piece 7 on the connecting piece 2.

[0031] The connecting bar 4 is extended along the arrangement direction of the battery blocks 1. The two ends of the connecting bar 4 are fixed to the side walls of the clamp 3 by bolts. The connecting bar 4 can be removed by unscrewing the bolts at both ends, thereby realizing a detachable connection. The disassembly and assembly process is simple and time-saving, reducing the complexity and time-consuming nature of the disassembly and assembly process.

[0032] In this embodiment, the battery pack is provided with a total of four battery blocks 1. In other embodiments, the number of battery blocks 1 can be adjusted as needed. The two clamps 3 are clamped on the side walls of the outermost battery blocks 1. It is only necessary to replace the connecting strips 4 of appropriate length, and the clamps 3 do not need to be replaced. Therefore, it has good versatility and scalability.

[0033] Through holes 5 are respectively provided at both ends of the connecting bar 4. After the bolts pass through the through holes 5, they are threadedly connected to the side walls of the clamps 3. The heads of the bolts are pressed against the connecting bar 4 to fix the connecting bar 4 and the clamps 3. At least one of the through holes 5 is a long hole 6 opened along the length direction of the connecting bar 4. If the through holes 5 at both ends are circular, it is easy for the two ends to be misaligned with the threaded holes on the clamps 3. Therefore, by setting the long holes 6, the two ends of the connecting bar 4 are easy to align, and the distance between the two clamps 3 can also be finely adjusted.

[0034] In this embodiment, two connecting bars 4 are provided on the front and rear sides of the clamp 3, and the two connecting bars 4 are respectively close to the upper and lower ends of the clamp 3. The connecting bars 4 surround the circumference of the battery block 1 to avoid interference with the connecting piece 2 on the top of the battery block 1.

[0035] The two clamps 3 are respectively attached to the outermost battery blocks 1 and completely cover the side walls of the outermost battery blocks 1. Several battery blocks 1 are connected as a whole through the connecting piece 2, which increases the contact area between the clamps 3 and the battery blocks 1, increases friction, and improves the stability of the battery pack.

[0036] In this embodiment, the clamp 3 , the connecting strip 4 and the connecting piece 2 are all sheet metal parts made of high-strength alloy material with excellent tensile strength and corrosion resistance.

[0037] Second embodiment:

[0038] A mobile power supply, such as Figure 4 As shown, it includes a shell 9 and a sealing cover 10. The battery pack described in the above embodiment is arranged in the shell 9, and a handle 11 is rotatably connected to the sealing cover 10.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included in the scope of protection of the present invention.

Claims

1. A battery pack, characterized by: The invention comprises a plurality of battery blocks (1), wherein adjacent battery blocks (1) are connected via a connecting piece (2), and further comprises two clamps (3), wherein the two clamps (3) are connected via a connecting strip (4), wherein the two clamps (3) clamp the plurality of battery blocks (1) in the middle, and the two ends of the connecting strip (4) are respectively detachably connected to the clamps (3).

2. The battery pack of claim 1, wherein: One end of the connecting piece (2) is fixed to the top of the battery block (1) by means of bolts, and the other end is fixed to the top of the adjacent battery block (1) by means of bolts.

3. The battery pack of claim 2, wherein: The adjacent connecting pieces (2) are respectively close to the front and rear ends of the top of the battery block (1).

4. The battery pack of claim 1, wherein: The connecting bar (4) is extended along the arrangement direction of the plurality of battery blocks (1), and both ends of the connecting bar (4) are fixed to the side walls of the clamp (3) by bolts, thereby achieving a detachable connection.

5. The battery pack of claim 4, wherein: Through holes (5) are respectively provided at both ends of the connecting strip (4), and bolts are passed through the through holes (5) and are threadedly connected to the side walls of the clamp (3), wherein at least one of the through holes (5) is a long hole (6) provided along the length direction of the connecting strip (4).

6. The battery pack of claim 1, wherein: Two connecting bars (4) are provided on both the front and rear sides of the clamp (3), and the two connecting bars (4) are respectively close to the upper and lower ends of the clamp (3).

7. The battery pack of claim 1, wherein: The clamp (3) covers the side wall of the outermost battery block (1).

8. A mobile power source, characterized by: A battery pack comprising any one of claims 1 to 7.

Images