CN217983447U - A lithium battery with different charging and discharging ports - Google Patents

Abstract

The utility model belongs to the technical field of the lithium cell, especially, be a lithium cell of different mouthful of charge-discharge, including fixed case, the inside of fixed case is provided with the lithium cell, the top of lithium cell is provided with the circuit board, the both sides at circuit board top fixed mounting respectively has first current relay and second current relay, one side on fixed case surface fixed mounting has output negative pole, the negative pole that charges, battery sampling line interface, output positive pole and the positive pole that charges in proper order. This device is when using, when the lithium cell is in charged state, can let first current relay and second current relay be in the off-state to give output positive pole and output negative pole outage, reach charge protection's purpose, and when the lithium cell discharged, first current relay and second current relay can make the positive pole that charges and the negative pole that charges uncharged, adopt two return circuits to charge and discharge control, have promoted the security of lithium cell in the use.

Description

A lithium battery with different charging and discharging ports

technical field

The utility model belongs to the technical field of lithium batteries, in particular to a lithium battery with different charging and discharging ports.

Background technique

Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive and negative electrode materials and uses non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable.

At this stage, most traditional lithium batteries use the same port for charging and discharging. During use, due to various reasons, the problem of circuit short circuit may occur, resulting in damage to the lithium battery. There are certain safety hazards in the use of this lithium battery. .

Utility model content

In order to solve the problems raised in the above-mentioned background technology. The utility model provides a lithium battery with different ports for charging and discharging, which solves the hidden safety problem of charging and discharging the same port for the lithium battery.

In order to achieve the above object, the utility model provides the following technical solutions: a lithium battery with different charging and discharging ports, including a fixed box, a lithium battery is arranged inside the fixed box, and a circuit board is arranged above the lithium battery, so The two sides of the top of the circuit board are respectively fixedly installed with a first current relay and a second current relay, and one side of the surface of the fixed box is fixedly installed with an output negative pole, a charging negative pole, a battery sampling line interface, an output positive pole and a charging positive pole in sequence, One side of the surface of the first current relay is provided with a third wire and a fourth wire, and one end of the third wire is fixedly connected to the charging positive pole, and one end of the fourth wire is fixedly connected to the output positive pole, and the second current relay One side of the surface is provided with a first wire and a second wire, and one end of the first wire is fixedly connected to the output negative pole, and one end of the second wire is fixedly connected to the charging negative pole, and the two sides of the inner wall of the fixed box are provided with fixing devices .

Preferably, the fixing device includes a threaded fixing rod, fixed disks are fixedly installed on both sides of the surface of the fixed box, and the threaded fixed rod is threadedly connected to the fixed disk, and one end of the threaded fixed rod is fixedly installed with a movable block, The other end of the threaded fixing rod is fixedly mounted with a movable disc.

Preferably, there are four groups of fixed disks, movable blocks, movable disks and threaded fixing rods, and the movable disks are arranged on both sides of the surface of the lithium battery.

Preferably, connecting blocks are fixedly installed on the bottoms of both sides of the fixed box, and a fixing hole is opened in the middle of the connecting blocks.

Preferably, a cover is provided above the fixed box, a first connecting plate is fixedly installed on the bottom of the cover, a second connecting plate is fixedly installed on the top of the fixed box, and the first connecting plate and the second connecting plate The surface of the board is provided with connection holes.

Preferably, fixed handles are fixedly installed on both sides of the top of the cover, and a protective cover is provided on the surface of the fixed handle.

Preferably, terminal posts are fixedly installed on both sides of the top of the lithium battery, a U-shaped plate is fixedly installed on the top of the terminal post, and a wiring hole is opened on the surface of the U-shaped plate.

Compared with the prior art, the beneficial effects of the utility model are:

When the device is in use, when the lithium battery is in the charging state, the first current relay and the second current relay can be disconnected, so as to cut off the power to the output positive pole and the output negative pole to achieve the purpose of charging protection, and when the lithium battery When discharging, the first current relay and the second current relay will make the charging positive electrode and the charging negative electrode uncharged, and two circuits are used for charging and discharging control, which improves the safety of the lithium battery during use.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is the first three-dimensional structural diagram of the utility model;

Fig. 2 is the second three-dimensional structural diagram of the utility model;

Fig. 3 is the third three-dimensional structural diagram of the utility model;

Fig. 4 is the enlarged schematic view of the utility model fixed box;

Fig. 5 is the internal sectional view of the fixed box of the present utility model;

Fig. 6 is an enlarged schematic diagram of a U-shaped plate of the present invention.

In the figure: 1, fixed box; 2, first connecting plate; 3, cover; 4, fixed handle; 5, protective cover; 6, connecting hole; 7, second connecting plate; 8, fixed plate; 9, movable block 10. Connection block; 11. Fixing hole; 12. Output negative pole; 13. Charging negative pole; 14. Battery sampling line interface; 15. Output positive pole; 16. Charging positive pole; 17. Circuit board; 18. First current relay; 19, the second current relay; 20, the first wire; 21, the second wire; 22, the third wire; 23, the fourth wire; 24, lithium battery; 25, U-shaped plate; 26, movable plate; 27, thread Fixed bar; 28, wiring hole; 29, terminal post.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-6, the utility model provides the following technical solutions: a lithium battery with different charging and discharging ports, including a fixed box 1, a lithium battery 24 is arranged inside the fixed box 1, and a circuit board is arranged above the lithium battery 24 17. A first current relay 18 and a second current relay 19 are respectively fixedly installed on both sides of the top of the circuit board 17, and one side of the surface of the fixed box 1 is fixedly installed with output negative pole 12, charging negative pole 13, battery sampling line interface 14, Output positive pole 15 and charging positive pole 16, one side of the surface of the first current relay 18 is provided with a third lead 22 and a fourth lead 23, and one end of the third lead 22 is fixedly connected with the charging positive pole 16, and one end of the fourth lead 23 It is fixedly connected with the output positive pole 15, and one side of the surface of the second current relay 19 is provided with a first wire 20 and a second wire 21, and one end of the first wire 20 is fixedly connected with the output negative pole 12, and one end of the second wire 21 is connected with the The charging negative electrode 13 is fixedly connected, and the two sides of the inner wall of the fixed box 1 are provided with fixing devices.

When the device is in use, when the lithium battery 24 is in the charging state, the first current relay 18 and the second current relay 19 can be in the disconnected state, thereby powering off the output positive pole 15 and the output negative pole 12 to achieve the purpose of charging protection , and when the lithium battery 24 is discharged, the first current relay 18 and the second current relay 19 will make the charging positive electrode 16 and the charging negative electrode 13 uncharged, and two circuits are used for charging and discharging control, which improves the lithium battery during use. safety, and when the lithium battery 24 is installed, the threaded fixed rod 27 can be rotated by the movable block 9. Since the threaded fixed rod 27 is threadedly connected with the fixed disk 8, the movable disk 26 will be moved forward, thereby utilizing the movable disk 26 against both sides of the lithium battery 24, to achieve the fixing of the lithium battery 24, and then cover the lid 3 on the top of the fixed box 1, so that the first connecting plate 2 and the second connecting plate 7 are attached to each other, and use Fixing bolts and connecting holes 6 connect the first connecting plate 2 and the second connecting plate 7, thereby protecting the lithium battery 24 inside the fixed box 1, and the setting of the connecting block 10 and the fixing hole 11 can facilitate this process. The device is installed on the surface of the equipment, and the fixed box 1 can be fixedly installed on the equipment by using the fixing hole 11 and the connecting block 10, and the firmness of the installation can be guaranteed, and the setting of the terminal post 29, the U-shaped plate 25 and the wiring hole 28, Then it can be convenient for the lithium battery 24 to be connected with the circuit board 17 through the electric wire, and the fixed handle 4 can be convenient for the user to carry the device, and because the surface of the fixed handle 4 is provided with a protective cover 5, the fixed handle 4 can be held more easily. Soft, all electrical equipment in this device are powered by built-in storage batteries.

In one aspect of this embodiment, after the lithium battery 24 is put into the fixed box 1, the threaded fixing rod 27 can be rotated by the movable block 9, and since the threaded fixing rod 27 is threadedly connected with the fixed disk 8, the movable The disc 26 moves forward, thereby utilizing the movable disc 26 against both sides of the lithium battery 24 to realize the fixing of the lithium battery 24, and since the fixed disc 8, the movable block 9, the movable disc 26 and the threaded fixing rod 27 are all provided with four group, so the stability of the lithium battery 24 installation can be guaranteed.

In one aspect of this embodiment, the cover 3 can be covered on the top of the fixed box 1 afterwards, so that the first connecting plate 2 and the second connecting plate 7 are attached to each other, and the fixing bolts and the connecting holes 6 are used to secure the first connecting plate 2 to the second connecting plate 7. A connection plate 2 is connected with the second connection plate 7, thereby the lithium battery 24 inside the fixed box 1 is protected, and the fixed handle 4 can facilitate the user to carry the device, and because the surface of the fixed handle 4 is provided with a protective cover 5, so the fixed handle 4 can be made softer to hold.

In one aspect of this embodiment, the setting of the terminal post 29, the U-shaped plate 25 and the wiring hole 28 can facilitate the connection of the lithium battery 24 with the circuit board 17 by wires, which increases the convenience of the device, and the connection block 10 and the setting of fixing hole 11, then can facilitate this device to be installed on the surface of equipment, utilize fixing hole 11 and connecting block 10 to be able to fix box 1 and be fixedly installed on the equipment, and can guarantee the fastness of installation.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (7)

1. A lithium battery with different ports for charging and discharging, comprising a fixed box (1), characterized in that: a lithium battery (24) is arranged inside the fixed box (1), and a lithium battery (24) is arranged above the lithium battery (24). There is a circuit board (17), and a first current relay (18) and a second current relay (19) are respectively fixedly installed on both sides of the top of the circuit board (17), and one side of the surface of the fixed box (1) is sequentially An output negative pole (12), a charging negative pole (13), a battery sampling line interface (14), an output positive pole (15) and a charging positive pole (16) are fixedly installed, and one side of the surface of the first current relay (18) is provided with The third wire (22) and the fourth wire (23), and one end of the third wire (22) is fixedly connected to the charging positive pole (16), and one end of the fourth wire (23) is fixedly connected to the output positive pole (15), One side of the surface of the second current relay (19) is provided with a first wire (20) and a second wire (21), and one end of the first wire (20) is fixedly connected to the output negative pole (12), and the second One end of the wire (21) is fixedly connected to the charging negative pole (13), and fixing devices are provided on both sides of the inner wall of the fixing box (1). 2. A lithium battery with different charging and discharging ports according to claim 1, characterized in that: the fixing device includes a threaded fixing rod (27), and both sides of the surface of the fixing box (1) are fixedly installed with Fixed disc (8), and threaded fixed rod (27) is threadedly connected with fixed disc (8), and one end of described threaded fixed rod (27) is fixedly installed with movable block (9), and the threaded fixed rod (27) The other end is fixedly equipped with movable disc (26). 3. A lithium battery with different charging and discharging ports according to claim 2, characterized in that: the fixed plate (8), the movable block (9), the movable plate (26) and the threaded fixing rod (27) are all There are four groups, and the movable disks (26) are arranged on both sides of the surface of the lithium battery (24). 4. A lithium battery with different charging and discharging ports according to claim 1, characterized in that: the bottoms of both sides of the fixed box (1) are fixedly equipped with connecting blocks (10), and the connecting blocks (10 ) is provided with a fixing hole (11) in the middle. 5. A lithium battery with different charging and discharging ports according to claim 1, characterized in that: a cover (3) is arranged above the fixed box (1), and a bottom of the cover (3) is fixedly installed The first connecting plate (2), the top of the fixed box (1) is fixedly installed with the second connecting plate (7), and the surfaces of the first connecting plate (2) and the second connecting plate (7) are provided with Connection hole (6). 6. A lithium battery with different charging and discharging ports according to claim 5, characterized in that: fixed handles (4) are fixedly installed on both sides of the top of the cover (3), and the fixed handles (4) A protective cover (5) is arranged on the surface. 7. A lithium battery with different charging and discharging ports according to claim 1, characterized in that: the two sides of the top of the lithium battery (24) are fixedly installed with binding posts (29), and the binding posts (29) A U-shaped board (25) is fixedly installed on the top of the U-shaped board (25), and wiring holes (28) are provided on the surface of the U-shaped board (25).

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