Battery structure and nunchakus type battery pack using same

Abstract

The utility model relates to a battery structure and a nunchaku type battery pack using the same, which belong to the field of batteries, and comprise a cylindrical battery body, the positive electrode and the negative electrode of the battery body are respectively positioned at two ends of the battery body; the electric connector further comprises two insulating sleeves, each insulating sleeve comprises a cylindrical sleeve and a bottom plate which is fixedly connected to one end of the sleeve and seals the sleeve, a conducting part is fixedly arranged on the side wall, located on the inner side of the insulating sleeve, of the bottom plate, and the conducting part extends into the bottom plate. A wire corresponding to the conduction part is further embedded in the bottom plate, one end of the wire is fixedly connected with the conduction part and is conducted with the conduction part, and the other end of the wire extends outwards out of the bottom plate. According to the utility model, the assembled battery pack can be more conveniently assembled, and the assembled battery pack has a wider application range, and meanwhile, the assembled battery pack can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the field of batteries, and particularly relates to a battery structure and a nunchaku-style battery pack using the same. Background Art

[0002] With the rapid development of electric vehicles, renewable energy storage systems, and high-performance electronic devices, the demand for high-performance battery packs is increasing day by day. These application scenarios usually require the battery pack to provide high power output, long battery life, and reliable stability to meet the usage needs of users in different situations.

[0003] In the traditional assembly method of battery packs, the battery structures are usually fixedly connected to each other mechanically. For example, the batteries are welded together using conductive metal sheets. However, such a connection structure has some problems: (1) The high temperature generated during welding may affect the performance of the battery; (2) It is difficult to repair a single battery. Usually, the entire battery pack needs to be disassembled to repair or replace a single battery; (3) The welded connection structure of the conductive metal sheets is a rigid structure, lacking a certain degree of flexibility, and the usage scenarios are limited.

[0004] Based on this, the utility model provides a battery structure and a nunchaku-style battery pack using the same, which combines battery monomers into a battery pack by using a flexible connection structure, thereby solving the above-mentioned problems. Summary of the Utility Model

[0005] Based on this, it is necessary to provide a battery structure, including a cylindrical battery body, the positive electrode and the negative electrode of the battery body are respectively located at both ends thereof; further including two insulating sleeves, the insulating sleeve includes a cylindrical sleeve and a bottom plate fixedly connected to one end of the sleeve and closing the sleeve, a conducting portion is fixedly arranged on the side wall of the insulating sleeve on the inner side of the bottom plate, and the conducting portion extends into the bottom plate, a wire is buried in the bottom plate corresponding to the conducting portion, one end of the wire is fixedly connected to the conducting portion and is in conduction therewith, and the other end of the wire extends out of the bottom plate and is arranged outside.

[0006] In the utility model, the two insulating sleeves are respectively used for sleeving on both ends of the battery body. After the insulating sleeves are sleeved on both ends of the battery, the conducting portion on the inner side thereof will abut against and conduct with the positive electrode or the negative electrode of the battery body. At this time, the wire connected to the conducting portion will also be connected to the positive electrode and the negative electrode of the battery body.

[0007] Therefore, when assembling a battery pack using the battery structure of the present utility model, the wires of different battery structures are connected in pairs, and the battery structures can be connected together to form a battery pack. Compared with using conductive metal sheets to weld monomer batteries together to form a battery pack, the present utility model can assemble a battery pack more conveniently. At the same time, when assembling a battery pack with the battery structure of the present utility model, the battery structures can be connected together to form a battery pack without welding, which can avoid the influence of the high temperature generated during the welding process on the battery structure. In addition, the battery pack assembled by the present utility model is a flexible connection structure, and the positions of the battery structures can be freely moved, with flexible position transformation and a wider range of usage scenarios. In addition, since the battery structures in the battery pack composed of the battery structure of the present utility model are all connected to each other through wires, when it is necessary to repair or replace a certain battery structure, the battery structure can be conveniently removed from the battery pack, making the repair operation of the battery pack more convenient and fast.

[0008] Further, the sleeve is made of a flexible insulating material, and the inner diameter of the sleeve is smaller than the outer diameter of the battery body and not less than 98% of the outer diameter of the battery.

[0009] In the present utility model, the sleeve can be made of flexible insulating materials such as fluororubber and silicone rubber. Among them, making the inner diameter of the sleeve smaller than the outer diameter of the battery body can enable the sleeve to be firmly sleeved on the battery body to ensure that the sleeve will not detach from the battery body during use and to ensure that the conducting part on the bottom plate can be pressed against the positive or negative electrode of the battery body.

[0010] Further, a circular support ring is embedded at one end of the sleeve away from the bottom plate.

[0011] In the present utility model, the support ring is preferably a metal ring, which is embedded at the end of the sleeve. It can now limit the degree of deformation of the end of the sleeve. When the sleeve is sleeved on the battery body, the presence of the support ring can make the connection structure between the sleeve and the battery body more firm.

[0012] Further, the bottom plate has a circular plate-like structure. The side wall of the bottom plate is flush with the outer side wall of the sleeve. A perforation area is formed on the side wall of the bottom plate. The wire extends out of the bottom plate through the perforation area on the side wall of the bottom plate. A limiting ring is also fixedly provided on the side wall of the bottom plate. The limiting ring and the perforation area are located on the same diameter of the bottom plate.

[0013] In the present utility model, the limiting ring on the bottom plate and the perforation area are located on the same diameter of the bottom plate, that is, the central angle between the limiting ring and the perforation area is 180°.

[0014] In the present utility model, the limiting ring on the bottom plate is used for the wire on another bottom plate to pass through. With such a structure, during the use of the battery structure, even if the wire is pulled, the direction of the force acting on the insulating sleeve it is connected to is towards the direction of pressing on the battery body, which can effectively ensure that the pulled wire will not pull the insulating sleeve away from the battery body.

[0015] In the present utility model, preferably, the sleeve and the bottom plate are of the same material and integrally formed, so that the insulating sleeve can be directly produced by production processes such as injection molding, which can effectively improve the production efficiency of the insulating sleeve.

[0016] Furthermore, it further includes a male connection structure and a female connection joint that can be connected to each other, and the male connection joint and the female connection joint are respectively connected to the wires on two insulating sleeves.

[0017] In the present utility model, the wires on the two insulating sleeves sleeved on both ends of the battery body are respectively connected to the male connection structure and the female connection joint, which can facilitate the connection of wires between different battery structures and further improve the disassembly and assembly convenience between battery structures. Among them, it should be noted that the present utility model is applicable to a battery pack that requires battery structures to be connected in series. When forming the battery pack, the male connection joints and female connection structures on different battery structures are connected to each other. If the battery pack needs to be connected in parallel, the wires connected to the positive and negative electrodes of the battery body need to be split into two, and the male connection joint and the female connection joint are respectively connected to them to achieve the parallel connection between different battery structures.

[0018] Furthermore, the male connection joint includes a first conduction column in a cylindrical shape. The outer surface of the first conduction column is provided with a connecting external thread, and one end of the first conduction column is connected to and conducts with the corresponding wire; the female connection joint includes a second conduction column in a cylindrical shape. The outer surface of the second conduction column is provided with an annular limiting groove, and one end of the second conduction column is connected to and conducts with the corresponding wire; the female connection joint further includes a connecting sleeve. One end of the connecting sleeve is rotatably sleeved on the second conduction column to form a connecting section, and the part of the connecting sleeve not sleeved on the second conduction column forms an installation section. The inner side wall of the connecting section is provided with an annular limiting strip corresponding to the limiting groove, and the limiting strip is embedded in the limiting groove and is slidably matched with the limiting groove. The inner side wall of the installation section is provided with a connecting internal thread matching the connecting external thread on the first conduction column.

[0019] In the present utility model, the connection method of the male connection joint and the female connection joint is: the connecting sleeve and the first conduction column are connected to each other through the thread structure thereon, and the first conduction column and the second conduction column are abutted against each other.

[0020] Further, the wire includes a first section and a second section interconnected through a quick connection terminal. One end of the first section away from the quick connection terminal is connected to the conduction part, and one end of the second section away from the quick connection terminal is connected to the male connection joint or the female connection joint.

[0021] In the present utility model, the wire is divided into independent first and second sections and connected using a quick connection terminal. When assembling the battery pack, the wire can pass through the limit ring conveniently by separating the first and second sections. Additionally, in the case of repairing or replacing a single battery structure in the battery pack, the disassembly and installation of the battery structure can be further facilitated.

[0022] On the other hand, the present utility model also provides a nunchaku-style battery pack composed of the above battery structures.

[0023] The principle and effects of the present utility model will be further described below in conjunction with the above technical solutions and the accompanying drawings:

[0024] In the present utility model, when assembling the battery pack with the battery structures, the wires of different battery structures are connected pairwise, and the battery structures can be connected together to form a battery pack. Compared with forming a battery pack by welding monomer batteries with conductive metal sheets, the battery pack obtained by the present utility model can be assembled more conveniently. At the same time, when assembling the battery pack with the battery structures of the present utility model, the battery structures can be connected together to form a battery pack without welding, which can avoid the influence of the high temperature generated during the welding process on the battery structures. Additionally, the battery pack assembled by the present utility model is a flexible connection structure, and the positions of the battery structures can be freely moved, with flexible position transformation and a wider range of application scenarios. Moreover, since each battery structure in the battery pack composed of the battery structures of the present utility model is interconnected through wires, when it is necessary to repair or replace a certain battery structure, the battery structure can be conveniently removed from the battery pack, making the repair operation of the battery pack more convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the battery structure according to an embodiment of the present utility model;

[0026] Figure 2 is a schematic cross-sectional structure diagram of the battery structure according to an embodiment of the present utility model Figure 1 ;

[0027] Figure 3 is a schematic cross-sectional structure diagram of the battery structure according to an embodiment of the present utility model Figure 2 ;

[0028] Figure 4Schematic diagram of the connection structure of the male connection joint and the female connection joint according to the embodiment of the present utility model;

[0029] Figure 5 Schematic diagram of the structure when the battery structure according to the embodiment of the present utility model is assembled into a battery pack.

[0030] Reference numerals

[0031] 1 - Battery body, 2 - Insulating sleeve, 21 - Sleeve, 211 - Support ring, 221 - Limit ring, 3 - Conducting wire, 31 - First section, 32 - Second section, 4 - Male connection joint, 5 - Female connection joint, 51 - Second conducting column, 511 - Limit groove, 52 - Connection sleeve, 6 - Quick wiring terminal. Detailed implementation manners

[0032] For the convenience of those skilled in the art to understand, the present utility model will be further described in detail below with reference to the drawings and embodiments:

[0033] As Figures 1-5 , a battery structure includes a cylindrical battery body 1, and the positive electrode and the negative electrode of the battery body 1 are respectively located at both ends thereof; it further includes two insulating sleeves 2, and the insulating sleeve 2 includes a cylindrical sleeve 21 and a bottom plate fixedly connected to one end of the sleeve 21 and closing the sleeve. A conducting part is fixedly arranged on the side wall of the bottom plate inside the insulating sleeve 2, and the conducting part extends into the bottom plate. A conducting wire 3 is also buried in the bottom plate corresponding to the conducting part. One end of the conducting wire 3 is fixedly connected to the conducting part and is in mutual conduction, and the other end of the conducting wire 3 extends out of the bottom plate.

[0034] In the present utility model, the two insulating sleeves 2 are respectively used to sleeve at both ends of the battery body 1. After the insulating sleeves 2 are sleeved at both ends of the battery, the conducting part inside them will abut against and conduct with the positive electrode or the negative electrode of the battery body 1. At this time, the conducting wire 3 connected to the conducting part will also be connected to the positive electrode and the negative electrode of the battery body 1.

[0035] Therefore, when using the battery structure of the present invention to assemble a battery pack, the wires 3 of different battery structures are connected in pairs, so that the battery structures can be connected together to form a battery pack. Compared with using conductive metal sheets to weld single batteries together to form a battery pack, the battery pack of the present invention can be assembled more conveniently. At the same time, when the battery structure of the present invention is used to assemble a battery pack, the battery structures can be connected together to form a battery pack without welding, which can avoid the high temperature generated during the welding process from affecting the battery structure. In addition, the battery pack assembled by the present invention is a flexible connection structure, which can freely move the position of each battery structure, and the position change is flexible, and has a wider range of usage scenarios. In addition, since the battery structures in the battery pack composed of the battery structure of the present invention are interconnected by wires 3, when a battery structure needs to be repaired or replaced, the battery structure can be easily removed from the battery composition, which can make the battery pack repair operation more convenient and quick.

[0036] In one embodiment, the sleeve 21 is made of a flexible insulating material, and the inner diameter of the sleeve 21 is smaller than the outer diameter of the battery body 1 and is not less than 98% of the outer diameter of the battery.

[0037] In this embodiment, the sleeve 21 can be made of a flexible insulating material such as fluororubber, silicone rubber, etc., wherein the inner diameter of the sleeve 21 is smaller than the outer diameter of the battery body 1, so that the sleeve 21 can be firmly sleeved on the battery body 1 to ensure that the sleeve 21 will not be separated from the battery body 1 during use, and to ensure that the sleeve 21 can press the conductive portion on the bottom plate onto the positive or negative electrode of the battery body 1.

[0038] In one embodiment, a circular support ring 211 is embedded at one end of the sleeve 21 away from the base plate.

[0039] In this embodiment, the support ring 211 is preferably a metal ring, which is embedded in the end of the sleeve 21 and can adjust the degree of deformation of the end of the sleeve 21. When the sleeve 21 is sleeved on the battery body 1, the presence of the support ring 211 can make the connection structure between the sleeve 21 and the battery body 1 more secure.

[0040] In one embodiment, the base plate is a circular plate-like structure, the side wall of the base plate is flush with the outer wall of the sleeve 21, a perforated area is formed on the side wall of the base plate, the wire 3 extends out of the base plate through the perforated area on the side wall of the base plate, and a limiting ring 221 is fixedly provided on the side wall of the base plate, and the limiting ring 221 and the perforated area are located on the same diameter of the base plate.

[0041] In this embodiment, the limiting ring 221 and the perforated area on the bottom plate are located on the same diameter of the bottom plate, that is, the central angle between the limiting ring 221 and the perforated area is 180°.

[0042] In this embodiment, the limiting ring 221 on the bottom plate is used for the wire 3 on another bottom plate to pass through. With such a structure, during the use of the battery structure, even if the wire 3 is pulled, the direction of the force acting on the insulating sleeve 2 it is connected to is towards the direction of pressing on the battery body 1, which can effectively ensure that the pulled wire will not pull the insulating sleeve 2 away from the battery body 1.

[0043] In this embodiment, preferably, the sleeve 21 and the bottom plate are made of the same material and integrally formed, so that the insulating sleeve 2 can be directly produced through production processes such as injection molding, which can effectively improve the production efficiency of the insulating sleeve 2.

[0044] In one embodiment, it further includes a male connection structure and a female connection joint 5 that can be connected to each other, and the male connection joint 4 and the female connection joint 5 are respectively connected to the wires 3 on the two insulating sleeves 2.

[0045] In this embodiment, the wires 3 on the two insulating sleeves 2 sleeved on both ends of the battery body 1 are respectively connected to the male connection structure and the female connection joint 5, which can facilitate the connection of the wires 3 between different battery structures and further improve the disassembly and assembly convenience between the battery structures. Among them, it should be noted that the present utility model is applicable to a battery pack that requires the battery structures to be connected in series. When forming the battery pack, the male connection joints 4 and the female connection structures on different battery structures are connected to each other. If the battery pack needs to be connected in parallel, the wires 3 connected to the positive and negative electrodes of the battery body 1 need to be divided into two parts and respectively connected to the male connection joint 4 and the female connection joint 5 to achieve the parallel connection between different battery structures.

[0046] In one embodiment, the male connection joint 4 includes a first conduction column in a cylindrical shape. The outer surface of the first conduction column is provided with connecting external threads, and one end of the first conduction column is connected to and conducts with the corresponding wire 3; the female connection joint 5 includes a second conduction column 51 in a cylindrical shape. The outer surface of the second conduction column 51 is provided with an annular limiting groove 511, and one end of the second conduction column 51 is connected to and conducts with the corresponding wire 3; the female connection joint 5 further includes a connection sleeve 52. One end of the connection sleeve 52 is rotatably sleeved on the second conduction column to form a connection section, and the part of the connection sleeve 52 that is not sleeved on the second conduction column forms an installation section. The inner side wall of the connection section is provided with an annular limiting strip corresponding to the limiting groove 511, and the limiting strip is embedded in the limiting groove 511 and is slidably matched with the limiting groove 511. The inner side wall of the installation section is provided with connecting internal threads matching the connecting external threads on the first conduction column.

[0047] In this embodiment, the connection mode of the male connection joint 4 and the female connection joint 5 is as follows: The connection sleeve 52 and the first conduction post are connected to each other through the thread structure thereon, and the first conduction post abuts against the second conduction post 51.

[0048] In one embodiment, the wire 3 includes a first section 31 and a second section 32 that are connected to each other through a quick-wiring terminal 6. One end of the first section 31 away from the quick-wiring terminal 6 is connected to the conduction portion, and one end of the second section 32 away from the quick-wiring terminal 6 is connected to the male connection joint 4 or the female connection joint 5.

[0049] In this embodiment, the wire is divided into independent first section 31 and second section 32 and connected by the quick-wiring terminal 6. When assembling the battery pack, the wire can pass through the limiting ring 221 conveniently by disassembling the first section 31 and the second section 32. In addition, when it is necessary to repair or replace a single battery structure in the battery pack, the disassembly and installation of the battery structure can be further facilitated.

[0050] On the other hand, the present utility model also provides a nunchaku-style battery pack, which is composed of the above battery structures combined.

[0051] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A battery structure, characterized in that, It includes a battery body in a cylindrical shape, with the positive electrode and the negative electrode of the battery body located at both ends thereof respectively; it further includes two insulating sleeves, and each insulating sleeve includes a cylindrical sleeve and a bottom plate fixedly connected to one end of the sleeve to close the sleeve. A conduction part is fixedly arranged on the side wall inside the insulating sleeve of the bottom plate, and the conduction part extends into the bottom plate. A wire is also embedded in the bottom plate corresponding to the conduction part. One end of the wire is fixedly connected to the conduction part and is in mutual conduction, and the other end of the wire extends out of the bottom plate and is arranged outward.

2. The battery structure according to claim 1, wherein, The sleeve is made of a flexible insulating material, and the inner diameter of the sleeve is smaller than the outer diameter of the battery body and not less than 98% of the outer diameter of the battery.

3. A battery structure according to claim 2, characterized in that, A circular support ring is embedded at one end of the sleeve away from the bottom plate.

4. A battery structure according to claim 3, characterized in that, The bottom plate has a circular plate-like structure. The side wall of the bottom plate is flush with the outer side wall of the sleeve. A perforation area is formed on the side wall of the bottom plate, and the wire extends out of the bottom plate through the perforation area on the side wall of the bottom plate. A limiting ring is also fixedly arranged on the side wall of the bottom plate, and the limiting ring and the perforation area are located on the same diameter of the bottom plate.

5. A battery structure according to claim 4, characterized in that, It further includes a male connection structure and a female connection joint that can be connected to each other, and the male connection joint and the female connection joint are respectively connected to the wires on the two insulating sleeves.

6. A battery structure according to claim 5, characterized in that, The male connection joint includes a cylindrical first conduction column. A connecting external thread is arranged on the outer surface of the first conduction column, and one end of the first conduction column is connected to the corresponding wire and is in conduction; the female connection joint includes a cylindrical second conduction column. A circular limiting groove is formed on the outer surface of the second conduction column, and one end of the second conduction column is connected to the corresponding wire and is in conduction; the female connection joint further includes a connecting sleeve. One end of the connecting sleeve is rotatably sleeved on the second conduction column to form a connecting section, and the part of the connecting sleeve not sleeved on the second conduction column forms an installation section. A circular limiting strip is arranged on the inner side wall of the connecting section corresponding to the limiting groove, and the limiting strip is embedded in the limiting groove and is slidably matched with the limiting groove. A connecting internal thread matching the connecting external thread on the first conduction column is arranged on the inner side wall of the installation section.

7. A battery structure according to claim 6, characterized in that, The wire includes a first section and a second section connected to each other through a quick wiring terminal. One end of the first section away from the quick wiring terminal is connected to the conduction part, and one end of the second section away from the quick wiring terminal is connected to the male connection joint or the female connection joint.

8. A nunchaku-style battery pack, characterized in that, It is formed by combining the battery structures described in any one of claims 1 - 7.

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