CN220368079U

CN220368079U - Cylindrical lithium battery negative electrode end connection structure

Info

Publication number: CN220368079U
Application number: CN202321513169.8U
Authority: CN
Inventors: 郑治武; 王品
Original assignee: Aerospace Lithium Technology Jiangsu Co ltd
Current assignee: Aerospace Lithium Technology Jiangsu Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-01-19
Anticipated expiration: 2033-06-14

Abstract

The utility model relates to the technical field of battery negative electrode end connection, and discloses a cylindrical lithium battery negative electrode end connection structure, which comprises a battery body and a battery shell, wherein a replacement mechanism is fixedly connected inside the battery shell, a connection mechanism is fixedly connected inside the battery shell, and the connection mechanism is arranged at the left side of the replacement mechanism; the change mechanism includes the square groove, and the square groove is seted up inside battery case, and square groove inner wall top and bottom equal fixedly connected with connecting rod, connecting rod surface sliding connection have two slide keep away from the equal fixedly connected with second spring in one side mutually of slide, and two slide are corresponding one side equal fixedly connected with second picture peg, and both sides are equal fixedly connected with stopper around the negative plate, and stopper surface and square groove are inside pegging graft. This cylinder type lithium cell negative pole end connection structure through setting up change mechanism, under change mechanism operation, can make when installing battery case and negative plate, can be with its connection operation mode convenient and fast.

Description

Cylindrical lithium battery negative electrode end connection structure

Technical Field

The utility model relates to the technical field of battery negative electrode end connection, in particular to a cylindrical lithium battery negative electrode end connection structure.

Background

The cylindrical battery has high capacity, long cycle life and wide use environment temperature. The product is applied to solar lamps, lawn lamps, backup energy sources, electric tools, toy models and photovoltaic energy sources, and the production of cylindrical lithium batteries mainly adopts an advanced full-tab manufacturing process,

the negative electrode terminal connecting structure of the cylindrical lithium battery is mainly characterized in that the negative electrode lug of the battery core arranged in the battery shell is welded with the negative electrode terminal of the battery shell through a large welding spot, the welding is needed to be carried out from the inside of the battery shell, the welding mode is extremely inconvenient, the negative electrode terminal of the battery shell can be directly welded with the negative electrode lug of the battery core, and the battery shell and the negative electrode end plate are more convenient to install through the later stage.

Disclosure of Invention

The utility model aims to provide a connection structure of a cylindrical lithium battery negative terminal, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the cylindrical lithium battery negative electrode end connecting structure comprises a battery body and a battery shell, wherein a negative electrode plate is fixedly connected to the right side of the battery body, a replacement mechanism is fixedly connected to the inside of the battery shell, a connecting mechanism is fixedly connected to the inside of the battery shell, and the connecting mechanism is arranged on the left side of the replacement mechanism;

the change mechanism includes the square groove, the square groove is seted up inside battery case, square groove inner wall top and bottom equal fixedly connected with connecting rod, connecting rod surface sliding connection has the slide, slide quantity is two, two slide keeps away from one side mutually equal fixedly connected with second spring, two slide corresponding one side equal fixedly connected with second picture peg, both sides all fixedly connected with stopper around the negative plate, stopper surface and square groove are inside pegging graft, the third slot has been seted up to inside the stopper, the second slot has been intensively seted up in square groove inner wall left side, the second slot right side sets up to the opening, slide left side fixedly connected with expansion block, expansion block surface and inside grafting of second slot, equal fixedly connected with fixed block in square groove inner wall top and bottom, the fixed block sets up on the connecting rod right side, the second draw-in groove has been seted up to the fixed block inside, two slide front right-hand member articulates there is the articulated piece, articulated piece back fixedly connected with second fixture block.

Preferably, the number of the square grooves is two, and both the front side, the rear side and the right side of the two square grooves are provided with openings.

Preferably, the number of the second springs is two, the other sides of the second springs are fixedly connected with one side of the inner wall of the square groove, the inside of the second springs is sleeved with the surface of the connecting rod, and the sliding plate can drive the second inserting plate to be inserted into the third inserting groove under the rebound acting force of the second springs.

Preferably, the top and the bottom of the third slot are both provided with openings, the inside of the third slot is spliced with the surface of the second plugboard, and the battery body and the negative plate can be fixedly connected when the second plugboard is spliced in the third slot.

Preferably, the front surface of the second clamping groove is provided with an opening, the surface of the second clamping block is connected with the inner part of the second clamping groove in a clamping way, and when the second clamping block is connected in the second clamping groove in a clamping way, the sliding plate can be prevented from sliding on the surface of the connecting rod to a certain extent at will.

Preferably, the connecting mechanism comprises rectangular grooves, the rectangular grooves are formed in the battery shell, the number of the rectangular grooves is two, the front side and the rear side of each rectangular groove are respectively provided with an opening, sliding grooves are formed in the left side and the right side of the inner wall of each long groove formed in the top and the bottom of each rectangular groove, connecting plates are connected to the inner sides of the sliding grooves in a sliding mode, long plates are arranged in the rectangular grooves, the number of the long plates is two, filter plates are fixedly connected between the long plates, first springs are fixedly connected between the connecting plates and the long grooves, inserting blocks are fixedly connected to the other side of each connecting plate, first inserting plates are fixedly connected to the top and the bottom of each long plate, first inserting grooves are formed in the other side of each first inserting plate, hinge plates are hinged to the bottom of each hinge plates, first clamping blocks are fixedly connected to one sides of the locking plates, and first clamping grooves are formed in the inner sides of the long plates.

Preferably, the top and the bottom of the rectangular groove are provided with four long grooves, and the front surfaces of the four long grooves and one side of the corresponding rectangular groove are provided with openings.

Preferably, two first slots are arranged to be openings corresponding to one sides of the plug blocks, and the surfaces of the plug blocks are inserted into the first slots.

Preferably, the first clamping groove is provided with an opening corresponding to one side of the first clamping block, and the inside of the first clamping groove is clamped with the surface of the first clamping block, so that the long plate can be fixed in position.

Compared with the prior art, the utility model provides a cylindrical lithium battery negative electrode end connection structure, which has the following beneficial effects:

1. this cylinder type lithium cell negative pole end connection structure through setting up change mechanism, under change mechanism operation, can make when installing battery case and negative plate, can be with its connection operation mode convenient and fast.

2. This cylinder type lithium cell negative pole end connection structure through setting up coupling mechanism, under coupling mechanism operation, under the condition of dispelling the heat to the battery body, can change the filter plate, can reduce the filter plate at this moment and be blockked up by external dust, avoids influencing the heat dissipation of battery body.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art:

FIG. 1 is a front view of the overall structure of the present utility model;

fig. 2 is a schematic view of the structure of the battery body and the negative plate;

FIG. 3 is a schematic view of the battery case and the connection mechanism;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3 at A

FIG. 5 is a schematic view of the battery body and the replacement mechanism;

FIG. 6 is a schematic diagram of the components of the replacement mechanism;

fig. 7 is an enlarged schematic view of the structure at B in fig. 6.

In the figure: 1. a battery body; 2. a battery case; 3. a replacement mechanism; 31. rectangular grooves; 32. a long plate; 33. a filter plate; 34. a first plugboard; 35. a hinged plate; 36. a first clamping groove; 37. a first clamping block; 38. a locking plate; 301. a connecting plate; 302. a first spring; 303. inserting blocks; 304. a first slot; 305. a chute; 4. a connecting mechanism; 41. a square groove; 42. a fixed block; 43. a hinge block; 44. a second spring; 45. a second slot; 46. a telescopic block; 47. a connecting rod; 48. a slide plate; 401. a second clamping block; 402. a limiting block; 403. a third slot; 404. a second plugboard; 405. a second clamping groove; 5. a negative plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model provides the following technical scheme:

example 1

Referring to fig. 1 to 4, a connection structure of a cylindrical lithium battery cathode end includes a battery body 1 and a battery housing 2, wherein a negative plate 5 is fixedly connected to the right side of the battery body 1, a connection mechanism 4 is fixedly connected to the inside of the battery housing 2, a replacement mechanism 3 is fixedly connected to the inside of the battery housing 2, and the replacement mechanism 3 is arranged on the left side of the connection mechanism 4;

the coupling mechanism 4 includes square groove 41, square groove 41 is offered in battery case 2 inside, square groove 41 inner wall top and bottom equal fixedly connected with connecting rod 47, connecting rod 47 surface sliding connection has slide 48, slide 48 quantity is two, two slide 48 keep away from the equal fixedly connected with second spring 44 of one side mutually, two slide 48 are corresponding one side equal fixedly connected with second picture peg 404, both sides all fixedly connected with stopper 402 around the negative plate 5, stopper 402 surface and square groove 41 inside grafting, the stopper 402 inside has offered the third slot 403, square groove 41 inner wall left side has densely seted up second slot 45, second slot 45 right side sets up to the opening, slide 48 left side fixedly connected with expansion block 46, expansion block 46 surface and the inside grafting of second slot 45, square groove 41 inner wall top and bottom equal fixedly connected with fixed block 42, fixed block 42 sets up in connecting rod 47 right side, second draw-in groove 405 has been offered to the inside of fixed block 42, two slide 48 openly right-hand member articulates there is hinged block 43, hinged block 43 back fixedly connected with second fixture block 401, square groove 41 quantity is two, two front and two sides and two side, two front and two side and right side are both sides spring 44 are all set up to the inside opening, the second slot 403, the inside is two side opening is connected with second spring 44, the inside opening is two side, the inside opening is connected with the second slot 44, the inside is 44, two side opening is connected with inside the inside, two side of side spring 44, inside is connected with the inside opening, inside opening is 4, inside the connecting rod 44, inside opening is connected with the connecting rod is left side.

Further, the front surface of the second clamping groove 405 is set to be an opening, and the surface of the second clamping block 401 is clamped with the inner portion of the second clamping groove 405, so that the connection operation mode can be convenient and fast when the battery case 2 and the negative plate 5 are installed by arranging the connection mechanism 4 and operating under the operation of the connection mechanism 4.

Example two

Referring to fig. 1-7, and based on the first embodiment, the replacing mechanism 3 further includes rectangular grooves 31, the rectangular grooves 31 are formed in the battery case 2, the number of the rectangular grooves 31 is two, the front side and the rear side of the two rectangular grooves 31 are respectively provided with an opening, the left side and the right side of the inner wall of each elongated groove formed in the top and the bottom of the rectangular groove 31 are respectively provided with a chute 305, the inside of each chute 305 is slidably connected with a connecting plate 301, the inside of each rectangular groove 31 is provided with a long plate 32, the number of the long plates 32 is two, a filter plate 33 is fixedly connected between the two long plates 32, a first spring 302 is fixedly connected between each connecting plate 301 and each elongated groove, the other side of each connecting plate 301 is fixedly connected with an inserting block 303, the top and the bottom of each long plate 32 are respectively fixedly connected with a first inserting plate 34, the other side of each first inserting plate 34 is provided with a first inserting block 304, the front side of each connecting plate 301 is fixedly connected with a hinge plate 35, the bottom of each hinge plate 35 is hinged with a locking plate 38, one side of each locking plate 38 is fixedly connected with a first clamping block 37 near one side of the long plates 32, the inside of each long plates 32 is provided with a first clamping groove 36, the top and the bottom of each rectangular groove 31 is respectively provided with elongated grooves 304, the number of the front sides is four, the front sides of the four corresponding to the front sides of the rectangular grooves are respectively provided with the opening one side of the first inserting blocks 303, and the opening are respectively corresponding to the first inserting blocks 303 are opened.

Further, the first clamping groove 36 is provided with an opening corresponding to one side of the first clamping block 37, the inside of the first clamping groove 36 is clamped with the surface of the first clamping block 37, and the replacement mechanism 3 is arranged, so that the filter plate 33 can be replaced under the condition of heat dissipation of the battery body 1 under the operation of the replacement mechanism 3, and at the moment, the filter plate 33 can be reduced to be blocked by external dust, and the influence on the heat dissipation of the battery body 1 is avoided.

In the actual operation process, when the device is used, when the battery shell 2 and the negative plate 5 are connected, the battery shell 2 is sleeved on the surface of the battery body 1, the limiting block 402 moves in the square groove 41 until the limiting block 402 stops at one side of the second inserting plate 404, the telescopic block 46 is retracted and removed from the second inserting groove 45, the second spring 44 drives the sliding plate 48 to slide on the surface of the connecting rod 47 under the rebound left and right force of the second spring 44, the sliding plate 48 can drive the second inserting plate 404 to be inserted in the third inserting groove 403, the toggle hinging block 43 is hinged between the hinging block 43 and the sliding plate 48 again, and the hinging block 43 can drive the second clamping block 401 to be clamped in the second clamping groove 405;

under the condition that the filter plate 33 needs to be replaced regularly, only the locking plate 38 is required to be shifted, the locking plate 38 and the hinge plate 35 are hinged to be in a straight line state, the locking plate 38 drives the first clamping block 37 to move out of the first clamping groove 36, the first inserting plate 34 is pulled, the first inserting plate 34 drives the connecting plate 301 to slide in the sliding groove 305 to squeeze the first spring 302, and the filter plate 33 can be replaced until the inserting block 303 is driven to move out of the first inserting groove 304.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Claims

1. The utility model provides a cylinder type lithium cell negative pole end connection structure, includes battery body (1) and battery case (2), its characterized in that: the battery comprises a battery body (1), wherein a negative plate (5) is fixedly connected to the right side of the battery body, a connecting mechanism (4) is fixedly connected to the inside of a battery shell (2), a replacement mechanism (3) is fixedly connected to the inside of the battery shell (2), and the replacement mechanism (3) is arranged on the left side of the connecting mechanism (4);

the connecting mechanism (4) comprises square grooves (41), the square grooves (41) are formed in the battery shell (2), connecting rods (47) are fixedly connected to the top and the bottom of the inner wall of the square grooves (41), sliding plates (48) are connected to the surfaces of the connecting rods (47) in a sliding mode, the number of the sliding plates (48) is two, two sliding plates (48) are fixedly connected with second springs (44) on one sides of the sliding plates (48) far away from each other, two corresponding sides of the sliding plates (48) are fixedly connected with second inserting plates (404), limiting blocks (402) are fixedly connected to the front side and the rear side of the negative plate (5), the surfaces of the limiting blocks (402) and the inside of the square grooves (41) are connected in an inserting mode, third inserting grooves (403) are formed in the inside of the limiting blocks (402), second inserting grooves (45) are densely formed in the left side of the inner wall of the square grooves (41), the right sides of the second inserting grooves (45) are provided with openings, telescopic blocks (46) are fixedly connected to the left sides of the sliding plates (48), the surfaces of the telescopic blocks (46) are fixedly connected to the inside the second inserting blocks (45), the surfaces of the second inserting blocks (42) are fixedly connected to the inside the right side of the corresponding side of the limiting blocks (42), the right ends of the front sides of the two sliding plates (48) are hinged with a hinge block (43), and the back sides of the hinge blocks (43) are fixedly connected with a second clamping block (401).

2. The cylindrical lithium battery negative electrode terminal connection structure according to claim 1, wherein: the number of the square grooves (41) is two, and both the front side, the rear side and the right side of the two square grooves (41) are provided with openings.

3. The cylindrical lithium battery negative electrode terminal connection structure according to claim 1, wherein: the number of the second springs (44) is two, the other sides of the two second springs (44) are fixedly connected with one side of the inner wall of the square groove (41), and the inside of the second springs (44) is sleeved with the surface of the connecting rod (47).

4. The cylindrical lithium battery negative electrode terminal connection structure according to claim 1, wherein: the top and the bottom of the third slot (403) are both provided with openings, and the inside of the third slot (403) is spliced with the surface of the second plugboard (404).

5. The cylindrical lithium battery negative electrode terminal connection structure according to claim 1, wherein: the front surface of the second clamping groove (405) is provided with an opening, and the surface of the second clamping block (401) is clamped with the inside of the second clamping groove (405).

6. The cylindrical lithium battery negative electrode terminal connection structure according to claim 1, wherein: the utility model provides a change mechanism (3) including rectangular channel (31), rectangular channel (31) are seted up inside battery case (2), rectangular channel (31) quantity is two, two both sides all set up to the opening around rectangular channel (31), spout (305) have all been seted up to elongated slot inner wall left and right sides that rectangular channel (31) top and bottom all were seted up, inside sliding connection of spout (305) has connecting plate (301), rectangular channel (31) inside is provided with longboard (32), longboard (32) quantity is two, two fixedly connected with filter plate (33) between longboard (32), all fixedly connected with first spring (302) between connecting plate (301) and the elongated slot, connecting plate (301) opposite side fixedly connected with inserted block (303), first inserted block (304) have all been seted up to elongated board (32) top and bottom, first inserted block (34) opposite side, connecting plate (301) openly fixedly connected with connecting plate (35), articulated plate (35) bottom is provided with filter plate (33), be close to first articulated plate (38) and be connected with first articulated plate (32) inside locking clip (38), articulated plate (32) is connected with locking clip (38).

7. The cylindrical lithium battery negative electrode terminal connection structure according to claim 6, wherein: the top and the bottom of the rectangular groove (31) are provided with four long grooves, and the front surfaces of the four long grooves and one side of the corresponding rectangular groove (31) are provided with openings.

8. The cylindrical lithium battery negative electrode terminal connection structure according to claim 6, wherein: two first slots (304) are arranged to be openings corresponding to one sides of the plug blocks (303), and the surfaces of the plug blocks (303) are inserted into the first slots (304).

9. The cylindrical lithium battery negative electrode terminal connection structure according to claim 6, wherein: the first clamping groove (36) is provided with an opening corresponding to one side of the first clamping block (37), and the inside of the first clamping groove (36) is clamped with the surface of the first clamping block (37).