CN210015886U

CN210015886U - Storage battery box and storage battery

Info

Publication number: CN210015886U
Application number: CN201920970564.6U
Authority: CN
Inventors: 梁华智
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-02-04
Anticipated expiration: 2029-06-25

Abstract

The utility model provides a storage battery box and a storage battery pack, which belong to the technical field of batteries, wherein the storage battery box comprises a box body upper cover, a box body lower cover and a cantilever, a plurality of first limiting columns, a plurality of series-parallel connection elastic pieces and parallel connection elastic pieces are fixedly arranged on the inner top surface of the box body upper cover, and the parallel connection elastic pieces are arranged at one end of the box body upper cover; a plurality of second limiting columns are fixedly arranged on the bottom surface of the inner side of the lower cover of the box body, a plurality of series-parallel connection elastic sheets and parallel connection elastic sheets are arranged between the second limiting columns, the parallel connection elastic sheets are arranged at one end of the lower cover of the box body, which is far away from the parallel connection elastic sheets of the upper cover of the box body, and the first limiting columns and the second limiting columns are matched and fixed through fasteners; the cantilever is arranged at one end of the series-parallel spring plate and one end of the parallel spring plate, and a protrusion is fixedly arranged on the cantilever and is used for being matched and connected with a concave hole in the wiring terminal. The utility model provides a storage battery has adopted this battery box. The utility model discloses battery box and storage battery have realized the battery case and have been connected with the firm of the wire of drawing forth by the battery case.

Description

Storage battery box and storage battery

Technical Field

The utility model belongs to the technical field of the battery case, more specifically say, relate to a battery box and adopted storage battery of this battery box.

Background

Energy and environmental issues have been major bottleneck problems affecting the sustainable development of the world today since the 21 st century. In order to solve the worldwide problem, it is urgent to seek renewable green energy sources for replacing the traditional fossil fuels and to seek harmonious development of people and the environment. The lithium ion battery has the advantages of high open-circuit voltage, high energy density, long service life, excellent safety, environmental friendliness, small self-discharge and the like, and is considered as a classical energy of modern materials and new energy science.

At present, in the process of using a lithium ion battery box body, when an electric core of a battery box supplies power to an electric appliance and a lead led out from the battery box is connected with an external electric appliance, the connection between the battery box and the lead led out from the battery box is not firm, and the problem of virtual connection of a circuit is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery box and storage battery aims at solving the battery case and is connected the problem that insecure circuit virtual connection that causes by the wire that the battery case was drawn forth.

In order to achieve the above object, the utility model adopts the following technical scheme: provided is a battery case including: the box body upper cover, the box body lower cover and the cantilever are arranged, a plurality of first limiting columns are fixedly arranged on the top surface of the inner side of the box body upper cover, a plurality of series-parallel connection elastic sheets and parallel connection elastic sheets are arranged between the first limiting columns, and the parallel connection elastic sheets are arranged at one end of the box body upper cover; a plurality of second limiting columns are fixedly arranged on the bottom surface of the inner side of the lower cover of the box body, a plurality of series-parallel connection elastic sheets and parallel connection elastic sheets are arranged between the second limiting columns, the parallel connection elastic sheets are arranged at one end, far away from the parallel connection elastic sheets of the upper cover of the box body, of the lower cover of the box body, and the first limiting columns and the second limiting columns are matched and fixed through fasteners; the cantilever is arranged at one end of the series-parallel spring plate and one end of the parallel spring plate; the cantilever is fixedly provided with a bulge which is used for being matched and connected with a concave hole on the wiring terminal; the first limiting column and the second limiting column are enclosed to form a storage battery accommodating cavity.

Further, the battery box still includes the protection shield, the protection shield set up in the box body upper cover with the box body lower cover encloses in the battery case that establishes, with the box body upper cover with box body lower cover joint for be connected with the binding post wire.

Furthermore, the storage battery box also comprises a cover plate, and the cover plate is detachably connected with the box body upper cover and the box body lower cover.

Furthermore, a plurality of cantilever cavities for accommodating the cantilevers are fixedly arranged between the storage battery accommodating cavity and the cover plate.

Furthermore, a groove for wiring is formed between the cantilever cavity and the storage battery accommodating cavity.

Furthermore, one end of the cantilever is provided with an arc chamfer.

Further, the series-parallel connection elastic pieces and the parallel connection elastic pieces comprise a plurality of conductive elastic pieces which are connected with each other.

Further, electrically conductive shell fragment includes the bullet piece body and connecting portion. A through hole is arranged in the middle of the elastic sheet body in a penetrating manner, and a first side wall and a second side wall which are connected with the elastic sheet body and are relatively parallel are arranged in the through hole; one end of the connecting part is connected with the first side wall or the second side wall, the other end of the connecting part is fixedly connected with the supporting part, and the supporting part extends towards the same side outside the plane where the elastic sheet body is located.

The utility model provides a battery box's beneficial effect lies in: compared with the prior art, the utility model discloses battery box body upper cover sets up first spacing post, pass through the fastener cooperation with the spacing post of second of box body lower cover and be connected, be used for fixing electric core, set up the connection in series-parallel shell fragment and the shell fragment that connects in parallel between first spacing post and the spacing post of second respectively, the connection in series-parallel of electric core in the battery box has been realized, the connection in series-parallel shell fragment and the one end of the shell fragment that connects in parallel are equipped with the cantilever, be provided with the arch on the cantilever, be connected with binding post's shrinkage pool cooperation, battery shell fragment and binding post fastening connection have been realized, and then realized the battery case and the firm of the wire drawn forth by the battery case and be.

The utility model also provides a storage battery, including a plurality of electricity core rows, still include above-mentioned arbitrary one the battery box.

The utility model provides a storage battery's beneficial effect lies in: compared with the prior art, the utility model discloses a storage battery includes an arbitrary battery box of above-mentioned, the box body upper cover sets up first spacing post, pass through the fastener cooperation with the spacing post of second of box body lower cover and be connected for fix electric core, set up the connection in series-parallel shell fragment and the shell fragment that connects in parallel between first spacing post and the spacing post of second respectively, realized the connection in series-parallel to electric core in the battery box, the one end of connection in series-parallel shell fragment and the shell fragment that connects in parallel is equipped with the cantilever, be provided with the arch on the cantilever, be connected with binding post's shrinkage pool cooperation. The fastening connection of battery shell fragment and binding post has been realized, and then the battery case has been realized and the firm of the wire of drawing forth by the battery case is connected, and the battery case can be sustainable stably carry out charge-discharge.

Drawings

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

Fig. 1 is an exploded view of a battery case according to an embodiment of the present invention;

fig. 2 is a schematic structural view of series-parallel connection elastic pieces provided in the embodiment of the present invention;

fig. 3 is a schematic structural view of a conductive elastic sheet according to an embodiment of the present invention;

fig. 4 is a top view of a lower cover of a box body according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of the sectional view B-B shown in FIG. 4;

fig. 6 is an exploded view of a battery pack according to an embodiment of the present invention.

In the figure: 1. the box body is covered; 2. a lower cover of the box body; 31. a first limit post; 32. a second limit post; 33. a screw hole; 4. the elastic sheets are connected in series and in parallel; 5. connecting the elastic sheets in parallel; 6. a cantilever; 61. a protrusion; 7. a conductive spring plate; 71. a projectile body; 711. a first side wall; 712. a second side wall; 72. a connecting portion; 721. a support portion; 8. a protection plate; 9. a cover plate; 10. a cantilever cavity; 11. a groove; 12. a fastener; 13. and (5) battery cores.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2 and 6, the battery case according to the present invention will now be described. The storage battery box comprises a box body upper cover 1, a box body lower cover 2 and a cantilever 6. A plurality of first limiting columns 31 are fixedly arranged on the top surface of the inner side of the box body upper cover 1, a plurality of series-parallel connection elastic sheets 4 and parallel connection elastic sheets 5 are arranged between the first limiting columns 31, and the parallel connection elastic sheets 5 are arranged at one end of the box body upper cover 1; a plurality of second limiting columns 32 are fixedly arranged on the bottom surface of the inner side of the box body lower cover 2, a plurality of series-parallel connection elastic sheets 4 and parallel connection elastic sheets 5 are arranged between the second limiting columns 32, the parallel connection elastic sheets 5 of the box body lower cover 2 are arranged at one end, far away from the parallel connection elastic sheets 5 of the box body upper cover 1, of the box body lower cover 2, and the first limiting columns 31 and the second limiting columns 32 are matched and fixed through fasteners 12; the cantilever 6 is arranged at one end of the series-parallel spring plate 4 and one end of the parallel spring plate 5; a bulge 61 which is matched and connected with a concave hole on the wiring terminal is fixedly arranged on the cantilever 6; the first limiting column 31 and the second limiting column 32 enclose a storage battery accommodating cavity.

The utility model provides a storage battery box, compared with the prior art, the utility model discloses storage battery box body upper cover 1 sets up first spacing post 31, it is connected through the cooperation of fastener 12 with the spacing post 32 of second of box body lower cover 2, be used for fixing electric core 13, first spacing post 31, the spacing post 32 of second sets up connection in series-parallel shell fragment 4 and parallelly connected shell fragment 5 respectively, the connection in series-parallel of electric core 13 in the battery box has been realized, the one end of connection in series-parallel shell fragment 4 and parallelly connected shell fragment 5 is equipped with cantilever 6, be provided with arch 61 on the cantilever 6, be connected with binding post's shrinkage pool cooperation, the fastening connection of battery shell fragment with binding post has been realized, and then the firm of battery case with the wire of drawing forth by the battery case has been realized, the sustainable and stably carries out the.

In this embodiment, the fastening member 12 is a bolt, a screw hole 33 is formed in a part of the first limiting column 31 of the upper case 1 and a part of the second limiting column 32 of the lower case 2, and the bolt passes through the screw hole 33 to connect the upper case 1 and the lower case 2 into a whole.

As a specific implementation manner of the storage battery box, please refer to fig. 3 to 5, the protection plate 8 set up in the box body upper cover 1 with the box body lower cover 2 encloses the battery box body of establishing, with the box body upper cover 1 with 2 joints of box body lower cover for be connected with the binding post wire. Because the material of lithium battery protection board 8 itself has decided it can not by overcharge, overdischarge, overflow, short circuit and ultra-temperature charge-discharge, therefore lithium battery pack always follows a protection board 8. Protruding 61 on this battery box cantilever 6 is connected with the cooperation of binding post shrinkage pool, then will be connected to the protection shield 8 with the wire that binding post is connected on. When the battery cell 13 in the battery box discharges through the protection plate 8 and the discharge reaches a preset value, the protection plate 8 cuts off a discharge loop to avoid over-discharge of the battery cell 13; when the battery cell 13 in the battery box is charged through the protection board 8, when the charging reaches a predetermined value, the protection board 8 will cut off the charging loop to avoid the battery cell 13 from being overcharged.

In this embodiment, the protection board 8 is a protection board manufactured by Shenzhen Dalishen technology Limited and having a model number DZY13VDTSAP151580W1L 3.

As a specific implementation manner of the embodiment of the utility model, please refer to fig. 1, the battery box still includes apron 9, apron 9 can be dismantled with box body upper cover 1 and box body lower cover 2 and be connected, apron 9 can directly cover and establish the opening part at box body upper cover 1 and box body lower cover 2 constitution cavity, apron 9 also can with box body upper cover 1, box body lower cover 2 fix with screw, make things convenient for the dismantlement of apron 9, and then make things convenient for the dismantlement and the installation of cantilever 6 and binding post and make things convenient for the dismantlement and the installation of binding post upper wire, box body upper cover 1 adopts a plurality of fasteners 12 with box body lower cover 2 to be connected, can avoid dismantling the unnecessary trouble that box body upper cover 1 and box body lower cover 2 brought effectively.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 and 5, a plurality of cantilever cavities 10 for accommodating the cantilevers 6 are fixedly disposed between the storage battery accommodating cavity and the cover plate 9. The cantilever cavities 10 are distributed at intervals along the length direction of the cover plate 9 and are in one-to-one correspondence with the cantilevers 6, and the cantilever cavities 10 are fixedly connected with the box body upper cover 1 or the box body lower cover 2. Set up the square cantilever chamber 10 that holds cantilever 6 between battery holding chamber and apron 9, be convenient for manage cantilever 6 on series-parallel connection shell fragment 4 and the parallel connection shell fragment 5, can reduce the damage that external vibrations probably brought cantilever 6.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 4, a groove 11 for routing is disposed between the cantilever cavity 10 and the storage battery accommodating cavity. Cantilever 6 is connected with binding post's one end, and binding post is connected with 8 wires on the protection shield, and protection shield 8 is connected with external electrical apparatus, and the wire need pass in the battery box stretching out certain specific position's of battery box in-process, holds and set up recess 11 between the chamber at square cantilever chamber 10 that holds cantilever 6 and battery, makes things convenient for the carding of wire, can improve the efficiency of dismantling the wire simultaneously.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2, one end of the cantilever 6 is provided with an arc chamfer. When the cantilever 6 is connected with the wiring terminal, one end of the cantilever 6 is provided with an arc chamfer, so that the cantilever 6 can be conveniently inserted into the wiring terminal.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2 and fig. 3, the series-parallel connection elastic pieces 4 and the parallel connection elastic pieces 5 include a plurality of conductive elastic pieces 7 connected to each other. The parallel spring 5 is provided with a plurality of conductive spring pieces 7 which are arranged in sequence, the conductive spring pieces 7 are contacted with the battery cell 13, the parallel spring 5 is provided with a cantilever 6, and the cantilever 6 is connected with the wiring terminal; the series-parallel connection elastic piece 4 is provided with a plurality of conductive elastic pieces 7 which are arranged in sequence, the conductive elastic pieces 7 are in contact with the battery cell 13, the parallel connection elastic pieces 5 are provided with cantilevers 6, and the cantilevers 6 are connected with the wiring terminals. A plurality of conductive elastic sheets 7 which are mutually connected are arranged on the parallel elastic sheets 5 and the series-parallel elastic sheets 4, so that the series connection and the parallel connection of the battery cells 13 are realized, and the requirements of different voltages and capacities are met. The series-parallel connection elastic pieces 4 and the parallel connection elastic pieces 5 are in contact with the positive electrode and the negative electrode of the battery cell 13 to realize series-parallel connection of the battery cell 13, and are not connected with the positive electrode and the negative electrode of the battery cell 13 through welding, so that the connection mode is simple and convenient, and the stability is good.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 3, the conductive elastic piece 7 includes a piece body 71 and a connecting portion 72. A through hole is arranged in the middle of the elastic sheet body 71 in a penetrating manner, and a first side wall 711 and a second side wall 712 which are connected with the elastic sheet body 71 and are relatively parallel are arranged in the through hole; one end of the connecting portion 72 is connected to the first sidewall 711 or the second sidewall 712, and the other end is fixedly connected to a supporting portion 721, and the supporting portion 721 extends toward the same side of the plane where the blade body 71 is located. The supporting part 721 is divided into two rows and is oppositely arranged, the supporting part 721 is elastically abutted to the output end of the battery cell 13, the connection performance is stable in the contact process with the battery cell 13, the stress is more uniform, the contact effect is better, and therefore the conductive effect is also better.

The utility model also provides a storage battery. Referring to fig. 6, the battery pack includes a plurality of cell rows and further includes the battery case according to any one of the above embodiments.

The utility model provides a storage battery: compared with the prior art, the utility model discloses a storage battery includes an arbitrary battery box of above-mentioned, box body upper cover 1 sets up first spacing post 31, it is connected through the cooperation of fastener 12 with the spacing post 32 of second of box body lower cover 2, be used for fixing electric core 13, set up connection in series-parallel shell fragment 4 and parallelly connected shell fragment 5 between first spacing post 31 and the spacing post 32 of second respectively, the connection in series-parallel of electric core 13 in the battery box has been realized, connection in series-parallel shell fragment 4 and parallelly connected shell fragment 5's one end is equipped with cantilever 6, be provided with arch 61 on the cantilever 6, be connected with binding post's shrinkage pool cooperation. The battery shell fragment is connected with binding post fastening, and then has realized the battery case and has been connected with the firm of the wire of drawing forth by the battery case, and the battery case can be sustainable stably carry out charge-discharge.

As a specific implementation of the storage battery, refer to fig. 6, in the battery case was fixed in through first spacing post 31 and the spacing post 32 of second to the electricity core row, the parallel arrangement was listed as to the electricity core, and adjacent two are listed as the electrode opposite direction that the electricity core was listed as, and the electricity core is listed as and comprises the electric core 13 that a plurality of electrodes syntropy was arranged, and each electric core 13 components of a whole that can function independently sets up in the electricity core was listed as. The cell rows may also be arranged in other forms, for example, the electrode directions of two adjacent cell rows are not necessarily opposite, and the polarities of the cells 13 arranged in the cell rows may also be different. In short, a proper arrangement mode of the cell columns can be selected according to actual needs. 1 top surface one end of box body upper cover is equipped with 1 parallelly connected shell fragment 5, and set gradually 6 shell fragments 4 that connect in series and parallel by parallelly connected shell fragment 5 of box body upper cover 1 to the 1 other end of box body upper cover, the one end that box body lower cover 2 kept away from parallelly connected shell fragment 5 of box body upper cover 1 is equipped with 1 parallelly connected shell fragment 5, and set gradually 6 shell fragments 4 that connect in series and parallel by parallelly connected shell fragment 5 of box body lower cover 2 to the other end of box body lower cover 2, electric core 13 contacts with shell fragment 4 that connect in series and parallel with shell fragment 5, the series connection and the parallelly connected of electric core 13 have been realized, the demand of different voltage and capacity has been.

In this embodiment, the electric core 13 is a 18650 lithium ion electric core with a rated voltage of 3.6V, wherein the capacity of a single electric core 13 is 2000mAh, the positive electrode output surface of the electric core 13 is at the upper end of the cylindrical electric core 13, the negative electrode output surface of the electric core 13 surrounds the bottom surface and the side surface of the positive electrode output surface of the cylindrical electric core 13, and the insulating sleeve is disposed on the positive electrode output surface of the cylindrical electric core 13 to prevent the series-parallel connection elastic sheet 4 or the parallel connection elastic sheet 5 from contacting the negative electrode of the electric core 13 when contacting the positive electrode of the electric core 13, thereby causing the short circuit. According to the requirements of voltage and capacity, the battery cells 13 in this embodiment are formed into a 13 × 4 array structure, and the longitudinal 4 battery cells 13 are firstly connected in parallel to form a parallel module with a capacity of 8000mAh, and 13 parallel modules are transversely connected in series to form the required battery voltage and capacity. Meanwhile, according to the requirements of voltage and capacity, the battery cell columns can be arranged in other ways to provide required voltage and capacitance.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A battery case, comprising:

the box body upper cover is fixedly provided with a plurality of first limiting columns on the top surface of the inner side, a plurality of series-parallel connection elastic sheets and parallel connection elastic sheets are arranged between the first limiting columns, and the parallel connection elastic sheets are arranged at one end of the box body upper cover;

the bottom surface of the inner side of the lower cover of the box body is fixedly provided with a plurality of second limiting columns, a plurality of series-parallel connection elastic sheets and parallel connection elastic sheets are arranged between the second limiting columns, the parallel connection elastic sheets are arranged at one end of the lower cover of the box body, which is far away from the parallel connection elastic sheets of the upper cover of the box body, and the first limiting columns and the second limiting columns are matched and fixed through fasteners; and

the cantilever is arranged at one end of the series-parallel spring plate and one end of the parallel spring plate; the cantilever is fixedly provided with a bulge which is used for being matched and connected with a concave hole on the wiring terminal; the first limiting column and the second limiting column are enclosed to form a storage battery accommodating cavity.

2. The battery case of claim 1, further comprising:

the protection shield, set up in the box body upper cover with the box body lower cover encloses in the battery case body that establishes, with the box body upper cover with box body lower cover joint for be connected with the binding post wire.

3. The battery case according to claim 1 or 2, characterized in that the battery case further comprises:

the cover plate is detachably connected with the box body upper cover and the box body lower cover.

4. The battery case according to claim 3, wherein a plurality of cantilever cavities for receiving the cantilevers are fixedly provided between the battery receiving cavity and the cover plate.

5. The battery compartment of claim 4, wherein a recess is provided between the cantilever cavity and the battery receiving cavity for routing the wires.

6. The battery case according to claim 1, 2, 4 or 5, wherein one end of the arm is provided with a rounded chamfer.

7. The battery case according to claim 1, 2, 4 or 5, wherein the series-parallel spring and the parallel spring comprise a plurality of conductive springs connected to each other.

8. The battery case according to claim 7, wherein the conductive dome comprises:

the middle part of the elastic sheet body is provided with a through hole in a penetrating way, and a first side wall and a second side wall which are connected with the elastic sheet body and are relatively parallel are arranged in the through hole;

and one end of the connecting part is connected with the first side wall or the second side wall, the other end of the connecting part is fixedly connected with a supporting part, and the supporting part extends towards the same side outside the plane where the elastic sheet body is located.

9. A battery pack characterized by comprising a plurality of cell rows and further comprising the battery case according to any one of claims 1 to 8.