CN218731566U

CN218731566U - Lithium battery assembling and fixing device

Info

Publication number: CN218731566U
Application number: CN202223040338.9U
Authority: CN
Inventors: 俞飞
Original assignee: Nanjing Yutian New Energy Technology Co ltd
Current assignee: Nanjing Yutian New Energy Technology Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-03-24
Anticipated expiration: 2032-11-16

Abstract

The utility model relates to a lithium cell preparation technical field specifically discloses a lithium cell equipment fixing device, including at least one fixed subassembly, fixed subassembly includes negative plate and positive plate, negative plate and positive plate set up relatively, the elastic webbing is connected at negative plate middle part and positive plate middle part, can dismantle the connection through the screw between positive plate both ends and the negative plate both ends, the equipartition has a plurality of mounting grooves on positive plate and the negative plate, the mounting groove bottom is all seted up flutedly, all be equipped with the elastic component in the recess, between the elastic component on the negative plate, all through electrically conductive intercommunication between the elastic component on the positive plate, be equipped with the negative pole inserted sheet on the negative plate, electrically conductive on negative pole inserted sheet and the negative plate is connected, be equipped with anodal slot on the positive plate, be equipped with metal shrapnel in the anodal slot, electrically conductive on metal shrapnel and the positive plate is connected, still be equipped with clamping mechanism on the fixed subassembly. The utility model discloses convenient to use has expansibility, and the process of spot welding when saving traditional equipment assembles, and the equipment is swift.

Description

Lithium battery assembling and fixing device

Technical Field

The utility model relates to a lithium cell preparation technical field, concretely relates to lithium cell equipment fixing device.

Background

Lithium batteries are classified into lithium batteries and lithium ion batteries. Lithium ion batteries are used in mobile phones and notebook computers, and are commonly called as lithium batteries. The lithium ion battery has the advantages of high working voltage, high specific energy, long cycle life, light weight, less self-discharge, no memory effect, high cost performance and the like, and becomes a main selection object of rechargeable power supplies in the fields of high-power electric vehicles, artificial satellites, aerospace and the like.

Along with lithium ion battery's rapid development and industrialization process, a great deal of corresponding problem has also been met in the actual production of battery, fixed mounting during the equipment lithium cell is just one of them, need place the lithium cell core on the mount during the equipment, then recycle the sticky tape and bind multiunit lithium cell core, tie up the back and carry out spot welding with battery electrode according to the design and connect, lithium cell model specification is various, the number of lithium cell core that uses during the equipment simultaneously is also not the same, and the fixed plate for lithium cell assembly that discloses in the current chinese utility model patent like publication No. CN215771239U, it is fixed shape, the number of lithium cell core that can adorn just also has just fixed, but also the measure of expanding, if need to assemble different quantity lithium cell core and just need specially customize the fixed plate, be unfavorable for practicing thrift manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lithium cell equipment fixing device to the not enough that prior art exists.

In order to realize the above-mentioned purpose, the utility model provides a lithium battery assembly fixing device, including at least one fixed subassembly, fixed subassembly includes negative plate and positive plate, negative plate and positive plate set up relatively, the elastic webbing is connected at negative plate middle part and positive plate middle part, can dismantle the connection through the screw between positive plate both ends and the negative plate both ends, the equipartition has a plurality of mounting grooves on positive plate and the negative plate, the mounting groove bottom is all seted up flutedly, all be equipped with the elastic component in the recess, between the elastic component on the negative plate, all through electrically conductive intercommunication between the elastic component on the positive plate, be equipped with the negative pole inserted sheet on the negative plate, electrically conductive on negative pole inserted sheet and the negative plate is connected, be equipped with anodal slot on the positive plate, be equipped with the metal shrapnel in the anodal slot, be connected on metal shrapnel and the positive plate, still be equipped with latch mechanism on the fixed subassembly.

Further, the clamping mechanism includes the joint groove and with joint groove complex joint piece, the same one side of negative plate and positive plate all is equipped with the joint groove of even and symmetry, the opposite side all is equipped with the joint piece of even and symmetry, joint groove and joint piece position correspond, be equipped with the elasticity card on the joint inslot and the same inner wall of mounting groove opening direction, offer on the joint piece with the mounting groove opening direction the same face with elasticity card complex spacing groove.

Furthermore, the joint inslot is seted up the sliding tray, and the one end and the joint inslot wall of elasticity card are fixed, the other end and sliding tray sliding connection.

Furthermore, threaded cylinders are fixed at the two ends of the negative plate, mounting holes are formed in the two ends of the positive plate corresponding to the threaded cylinders, counter bores are formed in one outward end of the mounting holes, and screws penetrate through the mounting holes and are in threaded connection with the threaded cylinders.

Furthermore, the mounting groove is a step-type groove, and at least two circular grooves with different diameters and the same axis are arranged.

Further, the conductive member includes a wire or a metal strip.

Further, the elastic element comprises an elastic sheet and a spring.

Has the advantages that:

the positive plate and the negative plate are connected through the elastic belt, meanwhile, the screw thread connection is carried out by utilizing the screw, so that the connection is more stable, the mounting groove has at least two different diameters, the fixing device is suitable for lithium battery cores with at least two types of sizes, the fixing components can be connected through the clamping mechanism, the fixing device can be suitable for the expansion of the assembly mode of the lithium batteries which are connected in parallel and in series, and the expansion is convenient; design electrically conductive piece and connect the same level of each lithium cell in the single fixed subassembly in positive plate and negative plate, saved the process of connecting every lithium cell electrode spot welding when assembling, save the equipment time.

Drawings

Fig. 1 is a schematic structural view of a fixing assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a positive plate according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the positive electrode slot and the negative electrode tab according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a clamping mechanism on a negative plate according to an embodiment of the present invention;

fig. 5 is a schematic diagram of the lithium battery assembly fixing device and the lithium battery core assembly according to the embodiment of the present invention.

In the figure: 1. a fixing component; 2. a positive plate; 3. a negative plate; 4. an elastic band; 5. a screw; 6. a threaded barrel; 7. mounting holes; 8. mounting grooves; 9. a groove; 10. a spring; 11. a spring plate; 12. a negative electrode insert; 13. a positive electrode slot; 14. a metal spring sheet; 15. a clamping groove; 16. a clamping block; 17. an elastic card; 18. a sliding groove; 19. a limiting groove; 20. and a conductive member.

Detailed Description

The present invention will be further clarified by the following embodiments with reference to the attached drawings, which are implemented on the premise of the technical solution of the present invention, and it should be understood that these embodiments are only used for illustrating the present invention and are not used for limiting the scope of the present invention.

As shown in fig. 1 to 4, the embodiment of the utility model provides a lithium battery assembly fixing device, including at least one fixed subassembly 1, fixed subassembly 1 includes negative plate 3 and positive plate 2, negative plate 3 and positive plate 2 set up relatively, 3 middle parts of negative plate and 2 middle parts of positive plate are connected with elastic tape 4, elastic tape 4 has two and symmetrical setting, elastic tape 4's both ends respectively with

negative plate

3 and 2 fixed connection of positive plate, can dismantle through screw 5 between 2 both ends of positive plate and the 3 both ends of negative plate and be connected, it is specific, negative plate 3 both ends all are fixed with threaded cylinder 6, mounting hole 7 has been seted up to 2 both ends of positive plate corresponding threaded cylinder 6 positions, mounting hole 7 one end outwards is equipped with the counter bore, screw 5 passes mounting hole 7 and threaded cylinder 6 threaded connection from the one end of counter bore. In the embodiment, the adjustable height range of the connection between the threaded cylinder 6 and the screw 5 is 65-75mm, 65mm and 75mm are the heights of two common lithium battery cores, the unstretched length of the elastic band 4 is the same as the height of the threaded cylinder 6, and the stretchable length of the elastic band 4 is greater than or equal to 75mm.

The equipartition has a plurality of mounting grooves 8 on positive plate 2 and the negative plate 3, and mounting groove 8 is the step groove, has two different diameters with the axle center's circular slot at least to be suitable for the different model lithium cell of two at least diameters, the circular slot quantity of single mounting groove 8 is two in this embodiment, and the circular slot diameter is 32mm and 28mm respectively, and these two diameters are the lithium cell diameter that is used for assembling the lithium cell commonly used, and the diameter can be other numerical values in other embodiments, and single circular slot depth is preferred about 5mm. The number of the mounting grooves 8 is preferably even, and in the embodiment, the number of the mounting grooves 8 on a single negative plate 3 or positive plate 2 is 4.

Recess 9 has all been seted up to 8 bottoms in mounting groove, all is equipped with the elastic component in the recess 9, all communicates through electrically conductive 20 between the elastic component on the negative plate 3, between the elastic component on the positive plate 2, and the elastic component is used for connecting the electrode of lithium cell core, and the elastic component is preferably shell fragment 11 and spring 10, and the elastic component on the positive plate 2 is shell fragment 11 in this embodiment, and the elastic component on the negative plate 3 is spring 10. Be equipped with negative pole inserted sheet 12 on the negative plate 3, electrically conductive 20 is connected on negative pole inserted sheet 12 and the negative plate 3, is equipped with anodal slot 13 on the positive plate 2, is equipped with metal shrapnel 14 in the anodal slot 13, and electrically conductive 20 is connected on metal shrapnel 14 and the positive plate 2, and the wire or metal strip are preferred to electrically conductive 20, and electrically conductive 20 is the metal strip in this embodiment. The fixed subassembly 1 of upset can make its negative pole inserted sheet 12 aim at with another fixed subassembly 1 positive pole slot 13, and positive pole slot 13 cooperates with negative pole inserted sheet 12, and the circuit of two fixed subassemblies 1 can be connected to the negative pole inserted sheet 12 when inserting in positive pole slot 13.

Still be equipped with latch mechanism on fixed subassembly 1, it is concrete, latch mechanism include joint groove 15 and with joint groove 15 complex joint piece 16, negative plate 3 and positive plate 2 with all be equipped with even and symmetrical joint groove 15 with one side, the opposite side all is equipped with even and symmetrical joint piece 16, joint groove 15 and joint piece 16 position correspond, be equipped with elastic card 17 on the same inner wall of 8 opening directions of mounting groove in the joint groove 15, sliding tray 18 has been seted up in concrete joint groove 15, elastic card 17's one end is fixed with joint groove 15 inner wall, the other end and sliding tray 18 sliding connection, offer on the joint piece 16 with the same face of 8 opening directions of mounting groove on with elastic card 17 complex spacing groove 19, leave the clearance that supplies elastic card 17 to deform between joint groove 15 and the joint piece 16, that is to say that elastic card 17 takes place elastic deformation when joint piece 16 inserts, its height is compressed, make joint piece 16 can continue to insert, elastic card 17 corresponds spacing groove 19 position after the target in place, card is in spacing groove 19 after the resilience, thereby make the joint between the fixed subassembly 1.

During the equipment, screw 5 is twisted off earlier, go into the lithium cell core to the card between positive plate 2 and the negative plate 3, the elastic webbing 4 is tensile, compress tightly positive plate 2 and negative plate 3 with the lithium cell core, then twist up screw 5 and make the three connect more firmly, the elastic component on negative plate 3 and the positive plate 2 all contacts the lithium cell core electrically conductive this moment, when connecting two fixed subassemblies 1, aim at positive slot 13 with negative pole inserted sheet 12, aim at joint groove 15 with joint piece 16, peg graft simultaneously, accomplish the connection between two fixed subassemblies 1. As shown in fig. 5, the assembly of the lithium battery assembly fixture and the lithium battery composed of three fixing assemblies 1 is schematically illustrated, and a circuit connection line is also marked in the figure, wherein the positive electrode and the positive electrode in a single fixing assembly 1 are connected with each other, and the negative electrode are connected with each other, that is, the lithium battery cells in the single fixing assembly 1 are connected in parallel. What fixed subassembly 1 was adjacent is the fixed subassembly 1 of falling over to realize that the positive pole of a fixed subassembly 1 connects the negative pole of another fixed subassembly 1, also be exactly for concatenating between two fixed subassemblies 1, this practicality can be fine be applicable to this kind of expansion of earlier and later cluster assembly methods.

The above description is only a preferred embodiment of the present invention, and it should be noted that other parts not specifically described belong to the prior art or the common general knowledge to those skilled in the art. Without departing from the principle of the present invention, several improvements and decorations can be made, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a lithium battery assembly fixing device, its characterized in that, includes at least one fixed subassembly, fixed subassembly includes negative plate and positive plate, and negative plate and positive plate set up relatively, be connected with the elastic webbing in negative plate middle part and positive plate middle part, can dismantle the connection through the screw between positive plate both ends and the negative plate both ends, the equipartition has a plurality of mounting grooves on positive plate and the negative plate, and the mounting groove bottom all sets up flutedly, all be equipped with the elastic component in the recess, between the elastic component on the negative plate, all through electrically conductive intercommunication between the elastic component on the positive plate, be equipped with the negative pole inserted sheet on the negative plate, the negative pole inserted sheet is connected with electrically conductive on the negative plate, be equipped with anodal slot on the positive plate, be equipped with the metal shrapnel in the anodal slot, the electrically conductive piece is connected on metal shrapnel and the positive plate, still be equipped with clamping mechanism on the fixed subassembly.

2. The lithium battery assembling and fixing device as claimed in claim 1, wherein the clamping mechanism comprises a clamping groove and a clamping block matched with the clamping groove, the same side of the negative plate and the positive plate is provided with a uniform and symmetrical clamping groove, the other side of the negative plate and the positive plate is provided with a uniform and symmetrical clamping block, the clamping groove corresponds to the clamping block in position, an elastic clamping piece is arranged on the inner wall of the clamping groove in the same direction as the opening direction of the mounting groove, and a limiting groove matched with the elastic clamping piece is arranged on the surface of the clamping block in the same direction as the opening direction of the mounting groove.

3. The lithium battery assembly fixing device of claim 2, wherein a sliding groove is formed in the clamping groove, one end of the elastic clamping piece is fixed to an inner wall of the clamping groove, and the other end of the elastic clamping piece is slidably connected to the sliding groove.

4. The lithium battery assembling and fixing device as claimed in claim 1, wherein threaded cylinders are fixed at both ends of the negative plate, mounting holes are formed at both ends of the positive plate corresponding to the threaded cylinders, a counter bore is formed at an outward end of each mounting hole, and the screw penetrates through the mounting hole to be in threaded connection with the threaded cylinder.

5. The lithium battery assembling and fixing device as claimed in claim 1, wherein the mounting groove is a stepped groove having at least two concentric circular grooves with different diameters.

6. The lithium battery pack fixing device as claimed in claim 1, wherein the conductive member comprises a wire or a metal strip.

7. The lithium battery assembly fixing device as claimed in claim 1, wherein the elastic member comprises a spring plate and a spring.