Lithium battery combination connecting structure

Abstract

The utility model provides a lithium battery combination connecting structure, which solves the problems that the complex steps of welding and the like are needed when the existing lithium battery combination is used, and the assembly process is relatively strong in professionality, and adopts the main scheme that the lithium battery combination connecting structure comprises a battery clamp, a conductive screw and a conductive sheet, the two conductive screws are symmetrically arranged at the upper end and the lower end of the battery clamp, each conductive screw is exposed out of the corresponding end face of the battery clamp, and the battery clamp is used for positioning a lithium battery and keeping the positive electrode end and the negative electrode end of the lithium battery to make contact with the two conductive screws all the time. The plurality of lithium batteries can be respectively positioned through the combined connection structures, and the adjacent combined connection structures are connected in series or in parallel through the conductive sheets at the shaft sections, exposed out of the battery clamp, of the corresponding conductive screws.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field especially relates to a lithium battery combination connection structure. BACKGROUND

[0002] For the assembly combination between traditional lithium batteries, most are combined by professional equipment welding, but the combination mode such as welding has problems such as complicated procedure, higher professional requirement degree, and the series-parallel combination process becomes more complex and changeable for the battery model corresponding to different standards.

[0003] Therefore, we propose a lithium battery combination connection structure to solve the above problems. INVENTION CONTENTS

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art, and the utility model provides a lithium battery combination connection structure. The series-parallel combination of any number and different shapes can be carried out through the standard battery support structure.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a lithium battery combination connection structure, which comprises a battery clamp, a conductive screw and a conductive sheet. The conductive screw comprises two and is symmetrically arranged on the upper and lower ends of the battery clamp. Each conductive screw is exposed to the corresponding end surface of the battery clamp. The battery clamp is used to position the lithium battery and keep the positive and negative electrodes of the lithium battery in constant contact with the two conductive screws. The lithium battery can include multiple and be positioned by the combination connection structure. Among them, the adjacent combination connection structures are connected in series or parallel through the conductive sheet on the shaft segment of the exposed battery clamp of the corresponding conductive screw.

[0006] Further, the lithium battery is a cylindrical structure, and its corresponding model includes 18650 model and 21700 model.

[0007] Further, the battery clamp comprises a transparent battery sleeve, a pull rod, a first positioning nut and two clamping blocks. Each clamping block has a recessed slot in the center. The end of the transparent battery sleeve is embedded in the recessed slot after the lithium battery is sleeved, two clamping blocks have through holes in the four corners for the pull rod to pass through, the pull rod is four, and the four through holes of the clamping blocks are respectively passed through and fixed by the first positioning nut on the exposed through hole shaft segment.

[0008] Further, the through hole is located on the outside of the top of the recessed slot, and the transparent battery sleeve is located between the four pull rods.

[0009] Further, the conductive screw is arranged through the center of the embedding groove, and one end of a head portion of the conductive screw is located in the embedding groove to limit the position, and an axial section of the conductive screw located in the embedding groove is further covered with a spring, and an exposed clamping block is fixed with the second positioning nut and the clamping block, and the diameter of the spring is smaller than the diameter of the one end of the head portion of the conductive screw.

[0010] Further, the axial section of the exposed clamping block of the conductive screw is longer than the thickness of the conductive sheet.

[0011] Further, the conductive sheet is a copper sheet, which is in a strip structure and symmetrically provided with holes at two ends to be sleeved on the axial section of the exposed battery clamp of the conductive screw and locked by the second positioning nut.

[0012] Compared with the prior art, the beneficial effects of the utility model include that the simple connection structure can realize the assembly of multiple lithium batteries, the complicated welding steps required by the traditional lithium battery assembly are avoided, and the lithium battery can be easily assembled without professional technical ability, and the series-parallel combination of any number and different shapes can be realized through the standard battery support structure. The corresponding battery clamp and transparent sleeve can also effectively protect the lithium battery from damage and increase the aesthetic degree of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0013] The disclosure of the utility model will be explained with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the protection scope of the utility model. In the drawings, the same reference signs are used to refer to the same parts. Among them:

[0014] Figure 1 The overall structure schematic view according to one embodiment of the utility model is schematically shown.

[0015] The reference signs in the drawings are as follows: 1, battery clamp; 2, conductive screw; 3, conductive sheet; 4, transparent battery sleeve; 5, pull rod; 6, first positioning nut; 7, clamping block; 8, embedding groove; 9, through hole; 10, spring; 11, second positioning nut. DETAILED DESCRIPTION

[0016] It is easy to understand that, according to the technical scheme of the utility model, a person skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the utility model. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical scheme of the utility model, and should not be regarded as the whole or regarded as the limitation or restriction of the technical scheme of the utility model.

[0017] According to one embodiment of the utility model combined with Figure 1 is shown.

[0018] For the overall structure, in the embodiment, a lithium battery combination connecting structure, comprising: a battery clamp 1, a conductive screw 2 and a conductive sheet 3, the conductive screw 2 comprises two and is symmetrically arranged on the upper and lower ends of the battery clamp 1, each conductive screw 2 is exposed to the corresponding end surface of the battery clamp 1, the battery clamp 1 is used to position the lithium battery and keep the positive and negative electrodes of the lithium battery in contact with the two conductive screws 2 respectively, the lithium battery can comprise a plurality of and be positioned by the combination connecting structure respectively, wherein adjacent combination connecting structures are connected in series or parallel through the conductive sheet 3 on the exposed shaft section of the battery clamp 1 of the corresponding conductive screw 2.

[0019] Specifically, in the embodiment, the lithium battery is a cylindrical structure, and the corresponding model is 18650 model and 21700 model. Correspondingly, the battery clamp 1 comprises a transparent battery sleeve 4, a pull rod 5, a first positioning nut 6 and two clamp blocks 7, each clamp block 7 is concave in the center and has an embedding groove 8, the end of the transparent battery sleeve 4 is embedded in the embedding groove 8 after sleeving the lithium battery, the four corners of the two clamp blocks 7 are provided with through holes 9 for the pull rod 5 to pass through, the pull rod 5 is four and respectively corresponds to the four through holes 9 of the clamp block 7 and is fixed by the first positioning nut 6 on the exposed shaft section of the through hole 9. The through hole 9 is located on the top outside of the embedding groove 8, and the transparent battery sleeve 4 is located between the four pull rods 5.

[0020] The conductive screw 2 is arranged through the center of the embedding groove 8, and one end of the corresponding head is located in the embedding groove 8 to limit, and the shaft section of the conductive screw 2 in the embedding groove 8 is also covered with a spring 10, the exposed shaft section of the conductive screw 2 is fixed with the clamp block 7 through the second positioning nut 11, and the diameter of the spring 10 is smaller than that of one end of the head of the conductive screw 2. The length of the exposed shaft section of the conductive screw 2 is greater than the thickness of the conductive sheet 3. The conductive sheet 3 is a copper sheet, which is a strip structure and symmetrically provided with holes at both ends to be sleeved on the exposed shaft section of the battery clamp 1 of the conductive screw 2, and locked by the second positioning nut 11.

[0021] It can be seen that the utility model can realize the cylindrical lithium battery welding-free and unlimitedly stacked series and parallel connection of the battery support structure block, the lithium battery is fixedly embedded in the transparent battery sleeve 4 in each connecting structure, and is limited and fixed by the two clamp blocks 7 and the four pull rods 5 at the same time, in the fixing process, the electrode end of the lithium battery is pressed against the exposed clamp block 7 of the conductive screw 2 through the spring 10 of the outer wall of the conductive screw 2, and then the conductive sheet 3 is arranged on the exposed shaft section of the conductive screw 2 to realize the series or parallel connection between the plurality of lithium batteries.

[0022] The actual installation process is as follows: firstly, the spring 10 is sleeved on the outer wall of the conductive screw 2, and then the conductive screw 2 is correspondingly penetrated through the center of the embedding groove 8 of each clamping block 7, and the process is guaranteed that the head of the conductive screw 2 is located inside; then the cylindrical lithium battery is inserted into the transparent battery sleeve 4, and then the transparent battery sleeve 4 is correspondingly embedded into the embedding groove 8 of the two clamping blocks 7, and the transparent battery sleeve 4 is clamped and fixed together with the clamping block 7 through the pull rod 5 and the first fixing nut. The voltage of the positive and negative poles of each section of the cylindrical battery is measured to determine whether each section of the battery is in good contact, that is, a battery support structure block is assembled. The copper sheet material conductive sheet 3 is used to connect the positive and negative poles of adjacent batteries in series or parallel, and the second fixing nut is locked and fixed, so that a plurality of batteries form a series or parallel battery pack.

[0023] The technical scope of the utility model is not limited to the content in the above description, and those skilled in the art can make various modifications and changes to the above embodiment without departing from the technical thought of the utility model, and these modifications and changes should all belong to the protection scope of the utility model.

Claims

1. A lithium battery assembly connection structure, characterized in that, include: The battery clamp comprises a battery holder, conductive screws, and conductive plates. The conductive screws include two screws symmetrically arranged at the upper and lower ends of the battery holder, with each conductive screw exposed on the corresponding end face of the battery holder. The battery holder is used to position the lithium battery and keep the positive and negative terminals of the lithium battery in constant contact with the two conductive screws. The lithium battery may include multiple batteries, each positioned by the combined connection structure. Adjacent combined connection structures are connected in series or in parallel through the conductive plates on the axial segment of the battery holder where the corresponding conductive screw is exposed.

2. The lithium battery combination connection structure according to claim 1, characterized in that: The lithium battery has a cylindrical structure, and its corresponding models include 18650 and 21700.

3. The lithium battery assembly connection structure according to claim 2, characterized in that: The battery clamp includes a transparent battery sleeve, a pull rod, a first positioning nut, and two clamping blocks. Each clamping block has a recessed groove in its center. The end of the transparent battery sleeve is embedded in the groove after the lithium battery is placed on it. The four corners of the two clamping blocks have through holes for the pull rod to pass through. There are four pull rods, which pass through the four through holes of the clamping blocks respectively and are fixed by the first positioning nut on the exposed shaft section of the through hole.

4. The lithium battery combination connection structure according to claim 3, characterized in that: The through hole is located on the outer side of the top of the groove, and the transparent battery sleeve is located between the four pull rods.

5. A lithium battery assembly connection structure according to claim 3, characterized in that: The conductive screw is positioned through the center of the groove, with one end of its head located inside the groove for limiting. The shaft section of the conductive screw located inside the groove is also covered with a spring. The exposed shaft section of the screw is fixed to the clamping block by a second positioning nut. The diameter of the spring is smaller than the diameter of one end of the head of the conductive screw.

6. The lithium battery combination connection structure according to claim 5, characterized in that: The length of the exposed clamping block of the conductive screw is greater than the thickness of the conductive sheet.

7. A lithium battery assembly connection structure according to claim 5, characterized in that: The conductive sheet is a copper sheet with a strip-shaped structure and symmetrical holes at both ends to fit onto the exposed section of the battery clamp with the conductive screw, and is locked in place by a second positioning nut.

Images