CN214543720U

CN214543720U - Equalizing charging device for series lithium battery pack

Info

Publication number: CN214543720U
Application number: CN202120773030.1U
Authority: CN
Inventors: 黄嘉敏
Original assignee: Exquisite Power Shenzhen Group Co ltd
Current assignee: Exquisite Power Shenzhen Group Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-10-29
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses an equalizing charge device of series lithium cell group, comprising a main body, the inside of main part is equipped with the battery, the inside top of main part is equipped with the fixed plate, and the bottom of fixed plate is equipped with a plurality of first conducting rods and second conducting rod, the inside of main part is equipped with the dwang, and the outside welding of dwang has the conducting ring, and the top welding of conducting ring has the contact, the both sides of main part are equipped with first pin and second pin respectively, the positive negative pole of battery respectively with the second conducting rod with the conducting ring contacts. The utility model discloses a rotate the dwang, can make the conducting ring drive the contact and rotate to make contact second conducting rod, thereby make all batteries establish ties, form the group battery, during charging, the reverse rotation dwang makes the dwang drive the contact and leaves the second conducting rod, and with the contact of first conducting rod, thereby makes the battery mutual independence, can separately charge to independent battery this moment, thereby reach the purpose of equalizing charge.

Description

Equalizing charging device for series lithium battery pack

Technical Field

The utility model relates to a lithium cell technical field especially relates to an equalizing charge device of series lithium cell group.

Background

The lithium battery is a battery which takes lithium metal or lithium alloy as a negative electrode material and uses non-aqueous electrolyte solution, the lithium battery pack belongs to a plurality of series-parallel lithium battery packs, and is widely applied to notebook batteries, LED flashlights, digital cameras, miner's lamps, medical equipment, emergency lamps and other manufacturers, and can well protect electric appliances.

The phenomenon of discharge imbalance can appear when present lithium cell group battery charging outfit charges to the condition such as electric quantity inequality appears in the monomer electricity core that leads to in the lithium cell group easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an equalizing charging device of a series lithium battery pack.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an equalizing charge device of series lithium cell group, includes the main part, the inside of main part is equipped with the battery, the inside top of main part is equipped with the fixed plate, and the bottom of fixed plate is equipped with a plurality of first conducting rods and second conducting rod, the inside of main part is equipped with the dwang, and the outer weld of dwang has the conducting ring, and the top welding of conducting ring has the contact, the both sides of main part are equipped with first pin and second pin respectively.

Furthermore, the positive electrode and the negative electrode of the battery are respectively contacted with the second conducting rod and the conducting ring, and one end of the second pin is fixedly connected with the second conducting rod.

Further, the top of main part is equipped with the head that charges.

Further, the main part is all run through to the one end of first pin with the one end of second pin, and the outside of first pin and second pin all welds and has solid fixed ring, and the equal threaded connection of one end of first pin and second pin has a screw thread section of thick bamboo, and one side of screw thread section of thick bamboo is equipped with the clamping ring.

Further, the inside of main part is equipped with the baffle, and a plurality of first through-holes have been seted up to one side of baffle, the dwang runs through first through-hole, and the outside welding of dwang has the worm wheel, the internal rotation of main part is connected with the worm, and worm wheel meshing has the bull stick in the welding between the worm, and the one end of bull stick extends to the outside of main part.

Furthermore, a rotating block is bonded at one end of the rotating rod.

Further, a rubber block is arranged outside the battery.

The utility model has the advantages that:

1. the rotating rod is arranged, so that the conducting ring can drive the contact piece to rotate by rotating the rotating rod, the contact piece is contacted with the second conducting rod, all the batteries are connected in series to form a battery pack, the rotating rod is rotated reversely during charging, so that the rotating rod drives the contact piece to be away from the second conducting rod and to be contacted with the first conducting rod, the batteries are mutually independent, and the independent batteries can be separately charged at the moment, so that the aim of balanced charging is fulfilled;

2. by arranging the threaded cylinder, the pressing ring and the fixing ring, and rotating the threaded cylinder, the pressing ring can be pushed by the threaded cylinder to be close to the fixing ring, so that the wire is tightly pressed, and the wire is conveniently contacted with the first pin and the second pin;

3. the worm can rotate by arranging the worm wheel and the worm and rotating the rotating rod, so that the worm wheel drives the rotating rod to rotate, the position of the contact piece is changed, and the battery can be charged and discharged conveniently;

4. through setting up the block rubber, the block rubber can protect the battery, avoids the battery to receive vibrations to damage.

Drawings

Fig. 1 is a schematic front view illustrating an equalizing charging device for series lithium battery packs according to embodiment 1;

fig. 2 is a schematic cross-sectional view of an equalizing charge device of a series lithium battery pack according to embodiment 1;

fig. 3 is a schematic cross-sectional view of a worm wheel of an equalizing charge device of a series lithium battery pack in embodiment 1;

fig. 4 is a schematic cross-sectional view of an equalizing charging device for series lithium battery packs according to embodiment 2.

In the figure: the device comprises a main body 1, a battery 2, a first pin 3, a conductive ring 4, a rotating rod 5, a contact piece 6, a first conductive rod 7, a fixed plate 8, a second conductive rod 9, a charging head 10, a fixed ring 11, a pressing ring 12, a second pin 13, a threaded barrel 14, a partition plate 15, a worm wheel 16, a rotating block 17, a rotating rod 18, a worm 19 and a rubber block 20.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-3, an equalizing charging device for a series lithium battery pack comprises a main body 1, a battery 2 is arranged inside the main body 1, a fixing plate 8 is arranged at the top end inside the main body 1, a plurality of first conducting rods 7 and second conducting rods 9 are arranged at the bottom end of the fixing plate 8, a rotating rod 5 is arranged inside the main body 1, a conducting ring 4 is welded outside the rotating rod 5, a contact plate 6 is welded at the top end of the conducting ring 4, a first pin 3 and a second pin 13 are respectively arranged at two sides of the main body 1, the conducting ring 4 can drive the contact plate 6 to rotate through the rotating rod 5, so that the contact plate 6 contacts with the second conducting rods 9, all the batteries 2 are connected in series to form the battery pack, when charging is performed, the rotating rod 9 is rotated reversely, the rotating rod 9 drives the contact plate to leave the second conducting rods 9 and contact with the first conducting rods 7, so that the batteries 2 are independent from each other, and the independent batteries can be separately charged, thereby achieving the purpose of equalizing charge.

The positive electrode and the negative electrode of the battery 2 are respectively contacted with the second conducting rod 9 and the conducting ring 4, one end of the second pin 13 is fixedly connected with the second conducting rod 9, and when the conducting ring 4 is rotated, the battery 2 can form a battery pack or the batteries 2 are mutually independent to carry out equalizing charging.

Wherein, a charging head 10 is provided on the top of the main body 1, and the battery 2 can be charged through the charging head 10.

Wherein, the one end of first pin 3 and second pin 13 all runs through main part 1, and the outside of first pin 3 and second pin 13 has all welded solid fixed ring 11, and the equal threaded connection of one end of first pin 3 and second pin 13 has a screw thread section of thick bamboo 14, and one side of screw thread section of thick bamboo 14 is equipped with clamping ring 12, and through rotating screw thread section of thick bamboo 14, can 14 promotion clamping rings 12 of screw thread section of thick bamboo be close to solid fixed ring 11 to compress tightly the wire, be convenient for the wire and contact with first pin 3 and second pin 13.

Wherein, the inside of main part 1 is equipped with baffle 15, a plurality of first through-holes have been seted up to one side of baffle 15, dwang 5 runs through first through-hole, the outside welding of dwang 5 has worm wheel 16, the inside rotation of main part 1 is connected with worm 19, worm 19 and worm wheel 16 mesh, the welding has bull stick 18 between the worm 19, the one end of bull stick 18 extends to the outside of main part 1, through rotating bull stick 18, can make worm 19 rotate, thereby make worm wheel 16 drive dwang 5 rotate, make the position of contact 6 change, be convenient for charge and discharge battery 2.

Wherein, a rotating block 17 is adhered at one end of the rotating rod 18, and the rotating rod 18 is convenient to rotate through the rotating block 17.

The working principle is as follows: the conducting ring 4 can drive the contact piece 6 to rotate through the rotating rod 5, so that the contact piece 6 is contacted with the second conducting rod 9, all the batteries 2 are connected in series to form a battery pack, when in charging, the rotating rod 9 is rotated reversely, the rotating rod 9 drives the contact piece to leave the second conducting rod 9 and to be contacted with the first conducting rod 7, so that the batteries 2 are mutually independent, and at the moment, the independent batteries can be separately charged, so that the aim of equalizing charging is fulfilled;

by rotating the threaded cylinder 14, the threaded cylinder 14 can push the press ring 12 to be close to the fixed ring 11, so that the wire is pressed tightly, and the wire is convenient to contact with the first pins 3 and the second pins 13;

by rotating the rotating rod 18, the worm 19 can be rotated, so that the worm wheel 16 drives the rotating rod 5 to rotate, the position of the contact piece 6 is changed, and the battery 2 can be conveniently charged and discharged.

Example 2

Referring to fig. 4, compared with embodiment 1, in the equalizing charging device for the series lithium battery pack, in order to increase the practicability of the device, a rubber block 20 is disposed outside the battery 2, and the rubber block 20 can protect the battery 2 and prevent the battery 2 from being damaged by vibration.

the worm 19 can be rotated by rotating the rotating rod 18, so that the worm wheel 16 drives the rotating rod 5 to rotate, the position of the contact piece 6 is changed, and the battery 2 is convenient to charge and discharge;

the rubber block 20 can protect the battery 2 from being damaged by vibration.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an equalizing charge device of series lithium cell group, includes main part (1), its characterized in that, the inside of main part (1) is equipped with battery (2), the inside top of main part (1) is equipped with fixed plate (8), and the bottom of fixed plate (8) is equipped with a plurality of first conducting rod (7) and second conducting rod (9), the inside of main part (1) is equipped with dwang (5), outside fixedly connected with conducting ring (4) of dwang (5), top fixedly connected with contact (6) of conducting ring (4), the both sides of main part (1) are equipped with first pin (3) and second pin (13) respectively.

2. The equalizing charge device of claim 1, wherein the positive and negative poles of the battery (2) are respectively in contact with the second conductive rod (9) and the conductive ring (4), and one end of the second pin (13) is fixedly connected to the second conductive rod (9).

3. The equalizing charge device of claim 1, wherein the charging head (10) is disposed on the top of the main body (1).

4. The equalizing charge device of claim 1, wherein one end of each of the first pin (3) and the second pin (13) penetrates through the main body (1), a fixing ring (11) is fixedly connected to the outside of each of the first pin (3) and the second pin (13), one end of each of the first pin (3) and the second pin (13) is in threaded connection with a threaded cylinder (14), and a pressing ring (12) is arranged on one side of each threaded cylinder (14).

5. The equalizing charge device of claim 1, wherein a partition (15) is disposed inside the main body (1), a plurality of first through holes are formed in one side of the partition (15), the rotating rod (5) penetrates through the first through holes, a worm wheel (16) is fixedly connected to the outside of the rotating rod (5), a worm (19) is rotatably connected to the inside of the main body (1), the worm (19) is meshed with the worm wheel (16), a rotating rod (18) is fixedly connected between the worms (19), and one end of the rotating rod (18) extends to the outside of the main body (1).

6. The equalizing charge device of claim 5, wherein a rotating block (17) is bonded to one end of the rotating rod (18).

7. The equalizing charge device of claim 1, characterized in that the battery (2) is externally provided with a rubber block (20).