CN218769943U

CN218769943U - Small lithium battery

Info

Publication number: CN218769943U
Application number: CN202223019322.XU
Authority: CN
Inventors: 欧理飞; 欧小俊; 胡长八; 朱丽锦
Original assignee: Youyou New Energy Technology Jinhua Co ltd
Current assignee: Youyou New Energy Technology Jinhua Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-28
Anticipated expiration: 2032-11-14

Abstract

The utility model relates to a lithium battery technology field, concretely relates to small-size lithium cell, including casing, the battery core of encapsulation in the casing to and two binding post that are connected with the positive pole and the negative pole of battery core respectively, binding post can be followed the first direction and for the casing activity, binding post includes wiring portion, set up the opening that supplies the wiring portion to advance/go out the casing along the first direction on the casing, small-size lithium cell is still including controlling the subassembly, control subassembly and binding post linkage for drive binding post along the first direction activity between extended position and accepting position, under extended position, wiring portion at least part stretches out the casing through the opening and is external for the wiring, under accepting position, wiring portion contracts to the casing through the opening, the utility model discloses can make whole binding post just can not bulge in the casing when carrying to can prevent that it from being bumped the problem of damage in the process of carrying.

Description

Small lithium battery

Technical Field

The utility model relates to a lithium cell technical field, concretely relates to small-size lithium cell.

Background

The lithium battery is widely applied to various industries as a common storage battery; there are some small-size lithium batteries, and this type of lithium battery is convenient for carrying, so the size design is comparatively small.

For example, utility model with application number CN202220558879.1 discloses a small-size lithium cell group convenient to dismouting, including the installation casing, the inner chamber of installation casing is provided with the installation component, the quantity of installation component is a plurality of, the front side of installation component top and bottom all is provided with the guide vane subassembly, and the rear side of installation component top and bottom all is provided with guide vane two.

The structure of the existing small lithium battery is approximately the same, in order to facilitate wiring when electricity is needed, the wiring terminal (i.e. the conductive column in the scheme) is generally exposed outside the shell, and when the small lithium battery is used, a cable of an electricity-using device is connected to the wiring terminal. Although the mode of exposing the wiring terminal is beneficial to wiring, the wiring terminal is arranged outside, so the wiring terminal is easy to collide with the wiring terminal when being carried or transported, the wiring terminal is damaged by collision, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem mentioned in the background art, the utility model aims to provide a small-size lithium cell.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a small-size lithium cell, includes the casing, encapsulates the battery core in the casing to and two binding post that are connected with the anodal and negative pole of battery core respectively, binding post can follow the first direction for the casing activity, binding post includes wiring portion, set up the opening that supplies the wiring portion to advance/go out the casing along the first direction on the casing, small-size lithium cell is still including controlling the subassembly, control subassembly and binding post linkage for drive binding post along the first direction activity between stretching out the position and accommodating the position, under stretching out the position, the at least part of wiring portion stretches out the casing through the opening and is external for the wiring, under accommodating the position, wiring portion contracts to the casing through the opening.

Compare prior art, the advantage of this scheme of adoption lies in:

through setting binding post to movable structure in this scheme, so that it can move about between reach out position and binding post position, and set up and control the subassembly and control its activity, so when this device is carried or transported to needs, can be through controlling the subassembly in order to drive binding post activity to accommodating position, under this position, the portion of connecting can contract to the casing in through the interface, so whole binding post just can not the protrusion outside the casing, thereby can prevent its problem of being bumped badly in carrying the in-process.

Otherwise, when the power consumption, can control once more and control the subassembly and order about binding post's wiring portion from the opening stretch out outside the casing, alright this moment get the electricity use on the outside connecting wire with consumer's connecting wire is connected to the wiring portion of casing.

Preferably, two conductive pieces respectively connected with the anode and the cathode of the battery core are fixedly arranged in the shell, the connecting terminal comprises an electric connecting part, the electric connecting part and the conductive pieces are oppositely arranged along a first direction, and the electric connecting part and the conductive pieces are in contact with each other to realize the connection of the electric connecting part and the conductive pieces under the extending position.

Preferably, the control assembly comprises a mounting box, a movable arm and a knob, the mounting box is fixedly arranged in the shell, the movable arm is movably arranged in the mounting box along a first direction, and the two wiring terminals are respectively fixed on the movable arm; a screw rod which extends along a first direction and is in threaded fit with the movable arm is rotatably arranged in the mounting box; the control assembly further comprises a linkage mechanism, the knob is arranged outside the shell and is linked with the screw rod through the linkage mechanism, and therefore the screw rod rotates along with the rotation of the knob.

Preferably, the linkage mechanism comprises a worm and a worm wheel, the worm is rotatably arranged in the mounting box and extends along a direction perpendicular to the first direction, and the worm wheel is fixed on the screw rod and meshed with the worm; the knob and the worm are circumferentially and oppositely positioned.

Preferably, the shell comprises a bottom shell and a cover plate, and the cover plate is detachably mounted on the top of the bottom shell; the knob is arranged on the cover plate; the upper end of the worm is of a convex key structure, the inner end of the knob is provided with a key groove, and the convex key structure is inserted into the key groove so that the knob and the worm are circumferentially and relatively positioned.

Preferably, the cover plate is mounted on the bottom case through screws, or the cover plate is mounted on the bottom case through a snap connection.

Preferably, at least two guide rods extending in a first direction are provided in the mounting box, wherein one of the guide rods constitutes the screw.

Preferably, a mounting groove is formed in the surface of one side of the shell mounting knob, and the knob is located in the mounting groove.

Other advantages and effects of the present invention are specifically explained in the detailed description and the accompanying drawings.

Drawings

FIG. 1 is a partial exploded view of the present invention;

FIG. 2 is a schematic view of the mounting box;

fig. 3 is a schematic structural view of the connection terminal of the present invention in an extended position;

fig. 4 is a schematic structural view of the terminal of the present invention in the state of the accommodating position;

fig. 5 is a schematic structural view of the knob on the back side of the cover plate.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present embodiment provides a small lithium battery, which includes a case 1, a battery cell (not shown in the drawings for the sake of viewing angle) enclosed in the case 1, and two terminals 2 respectively connected to the positive electrode and the negative electrode of the battery cell.

As shown in fig. 1, the housing 1 of the present embodiment mainly includes a bottom shell 11 and a cover 12, wherein the cover 12 covers the top of the bottom shell 11; specifically, the cover 12 may be mounted on the bottom case 11 by a screw-mounting method, and in other alternative embodiments, may be connected to the bottom case 11 by a snap-fit method, which is not particularly limited herein.

In addition, a horizontally disposed partition 13 is disposed in the bottom case 11, and the bottom case 11 is divided into a lower space in which the battery cell is located and an upper space for accommodating some battery-related electrical components, such as a circuit board, by the partition 13.

The terminal 2 is movable relative to the housing 1 in a first direction, which in this embodiment is also understood to be the length direction of the bottom case 11.

Referring to fig. 2, the terminal 2 includes a wire connecting portion 21, and the housing 1 is provided with a through hole 111 through which the wire connecting portion 21 enters/exits the housing 1 along a first direction, specifically, the through hole 111 is provided on a side wall of the bottom case 11, as shown in fig. 4.

The small lithium battery further comprises an operation component, the operation component is linked with the wiring terminal 2 and used for driving the wiring terminal 2 to move between a stretching position and a containing position along a first direction, under the stretching position, the state shown in fig. 3 can be referred to, at least part of the wiring part 21 stretches out of the shell 1 through the opening 111 to be wired, under the containing position, the state shown in fig. 2 and 4 can be referred to, the wiring part 21 shrinks into the shell 1 through the opening 111, and it needs to be noted that the wiring part 21 shrinks into the shell 1 as long as the end part of the wiring part 21 does not exceed the outer end of the opening 111.

Through the above arrangement, when the device needs to be carried or transported, the control assembly can be controlled to drive the wiring terminal 2 to move to the accommodating position, and in this position, the wiring part 21 can be contracted into the shell 1 through the opening 111 (as shown in fig. 4), so that the whole wiring terminal 2 can not protrude out of the shell 1, and the problem that the wiring terminal is damaged in the carrying process can be prevented.

On the contrary, when electricity is needed (i.e. power is supplied by a lithium battery), the control assembly may be manipulated again to drive the wiring portion 21 of the connection terminal 2 to extend out of the housing 1 from the through opening 111 (as shown in fig. 3), and at this time, the connection line of the electric equipment may be connected to the wiring portion 21 outside the housing 1 for electricity taking.

Because the binding post 2 needs to move relative to the casing 1, if the positive/negative pole of binding post 2 and battery core is realized to direct adoption wire connection's mode, then binding post 2 can pull this electric wire when the activity to easily cause this electric wire pine to take off, therefore this embodiment is further improved:

as shown in fig. 1, two conductive members 4 connected to the positive electrode and the negative electrode of the battery cell are fixed in the casing 1, and in this embodiment, the two conductive members 4 are preferably fixed side by side on the inner side wall of the bottom casing 11.

Combine as shown in fig. 2, binding post 2 is including the portion of connecing 22, portion of connecing 22 and the relative setting of conductive piece 4 along the first direction, under the extended position, portion of connecing 22 and the conductive piece 4 are inconsistent in order to realize the switch-on of the two, just so adopt the mode of connection of electric lines to realize the connection of the two between binding post 2 and the conductive piece 4, but adopt the mutually independent butt mode of portion of connecing 22 and conductive piece 4 to realize the switch-on, so binding post 2 just can not appear the problem that the electric wire pine takes off when removing, as long as move binding post 2 to the extended position, thereby portion of connecing 22 just can realize the switch-on of the two with conductive piece 4 looks counterbalance.

The specific structure of the manipulation assembly is, as shown in fig. 1 and 2, that the manipulation assembly includes a mounting box 31, a movable arm 32 and a knob 33, the mounting box 31 is fixedly disposed in the housing 1, specifically, the mounting box 31 is fixedly disposed in the upper space of the bottom shell 11, and the through hole 111 on the bottom shell 11 penetrates through the side wall of the mounting box 31.

As shown in fig. 2, the movable arm 32 is movably disposed in the mounting box 31 along a first direction, and the two terminals 2 are respectively fixed on the movable arm 32; a screw 35 which extends along the first direction and is in threaded fit with the movable arm 32 is rotatably arranged in the mounting box 31; specifically, the method comprises the following steps:

at least two guide rods 34 extending along a first direction are disposed in the mounting box 31, wherein one guide rod 34 forms the screw 35, and the other guide rods 34 are of a polished rod structure for movably guiding the movable arm 32.

The control assembly further comprises a linkage mechanism 36, the knob 33 is disposed outside the housing 1, and in this embodiment, the knob 33 is preferably disposed on the cover plate 12, as shown in fig. 1; the knob 33 is linked with the screw 35 through a linkage mechanism 36, so that the screw 35 rotates along with the rotation of the knob 33; specifically, the method comprises the following steps:

as shown in fig. 2, the linkage 36 includes a worm 362 and a worm wheel 361, the worm 362 is rotatably disposed in the mounting box 31 and extends along a direction perpendicular to the first direction, which can also be understood as the worm 362 extends vertically.

The worm wheel 361 is fixed on the screw 35 and meshed with the worm 362; the knob 33 is circumferentially positioned relative to the worm 362, such that rotation of the knob 33 rotates the worm 362, and the worm 362 rotates the worm gear 361, and thereby rotates the screw 35, such that the movable arm 32 is driven by the screw 35 to move in the first direction.

It will be appreciated that the worm gear arrangement is self-locking such that the terminal 2 is retained in the current position by the self-locking of the worm gear arrangement without rotation of the knob 33.

Since the knob 33 is mounted on the cover plate 12, the knob 33 needs to be mounted in consideration of the problem of dismounting and mounting the cover plate 12, and if the knob 33 is simply fixed with the worm 362, it is obvious that the cover plate 12 cannot be dismounted, so the embodiment is further improved:

as shown in fig. 2, the upper end of the worm 362 is provided with a convex key 3621, and as shown in fig. 5, the inner end of the knob 33 (i.e. the end of the knob 33 close to the worm 362) is provided with a key groove 331, and the convex key 3621 is inserted into the key groove 331 so as to keep the knob 33 and the worm 362 circumferentially opposite to each other, so that the knob 33 and the worm 362 are assembled equivalently by adopting a vertical insertion manner, and so that the knob 33 can be extracted along with the cover plate 12 in the vertical direction so as not to interfere with the disassembly of the cover plate 12; and the two are in a key fit mode to ensure that the two are positioned oppositely in the circumferential direction, so that the rotation of the knob 33 drives the worm 362 to rotate.

In order to prevent the knob 33 from protruding from the cover plate 12, in this embodiment, as shown in fig. 1, a mounting groove 121 is formed on a plate surface of the housing 1 on the side where the knob 33 is mounted, specifically, the mounting groove 121 is formed on an outer side wall of the cover plate 12, the knob 33 is located in the mounting groove 121, and the knob 33 does not exceed a notch of the mounting groove 121.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a small-size lithium cell, includes casing, the battery core of encapsulation in the casing to and two binding post that are connected with the anodal and negative pole of battery core respectively, a serial communication port, binding post can follow the first direction for the casing activity, binding post includes wiring portion, set up the opening that supplies wiring portion to advance/go out the casing along the first direction on the casing, small-size lithium cell is still including controlling the subassembly, control subassembly and binding post linkage for drive binding post along the first direction activity between stretching out the position and accommodating position, under stretching out the position, wiring portion stretches out the casing through the opening partially at least and supplies the wiring, under accommodating position, wiring portion contracts to the casing through the opening.

2. A small-sized lithium battery as claimed in claim 1, wherein two conductive members are fixed in the case and connected to the positive electrode and the negative electrode of the battery cell, respectively, and the connection terminal includes a connection part, the connection part and the conductive members are disposed opposite to each other in a first direction, and in the extended position, the connection part and the conductive members are in contact with each other to connect the connection part and the conductive members.

3. The small lithium battery as claimed in claim 1 or 2, wherein the control assembly comprises a mounting box, a movable arm and a knob, the mounting box is fixedly arranged in the shell, the movable arm is movably arranged in the mounting box along a first direction, and the two connection terminals are respectively fixed on the movable arm; a screw rod which extends along a first direction and is in threaded fit with the movable arm is rotatably arranged in the mounting box; the control assembly further comprises a linkage mechanism, the knob is arranged outside the shell and is linked with the screw rod through the linkage mechanism, and therefore the screw rod rotates along with the rotation of the knob.

4. A small lithium battery as claimed in claim 3, wherein the linkage mechanism comprises a worm rotatably disposed in the mounting case and extending in a direction perpendicular to the first direction, and a worm wheel fixed to the screw and engaged with the worm; the knob and the worm are circumferentially and oppositely positioned.

5. A small lithium battery as claimed in claim 4, wherein the case includes a bottom case and a cover plate detachably mounted on top of the bottom case; the knob is arranged on the cover plate; the upper end of the worm is of a convex key structure, the inner end of the knob is provided with a key groove, and the convex key structure is inserted into the key groove so that the knob and the worm are circumferentially and relatively positioned.

6. A small lithium battery as claimed in claim 5, wherein the cover plate is mounted on the bottom case by screws, or the cover plate is mounted on the bottom case by means of a snap-fit connection.

7. A lithium miniature battery as claimed in claim 3 wherein said mounting box has at least two guide rods extending in a first direction, one of said guide rods forming said threaded rod.

8. A small lithium battery as claimed in claim 3, wherein a mounting groove is formed on a surface of the case on the side where the knob is mounted, and the knob is disposed in the mounting groove.