CN220653021U

CN220653021U - Automatic power-off protection device for power lithium battery

Info

Publication number: CN220653021U
Application number: CN202322250153.9U
Authority: CN
Inventors: 陈来宾; 吴嘉明
Original assignee: Suzhou Kuanlong Technology Development Co ltd
Current assignee: Suzhou Kuanlong Technology Development Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-03-22
Anticipated expiration: 2033-08-21

Abstract

The utility model discloses an automatic power-off protection device for a power lithium battery, which comprises a device shell and a protection cover, wherein the outer wall of the device shell is fixedly connected with a limit strip, the inner wall of the device shell is respectively provided with two accommodating grooves, one side inner wall of each accommodating groove is fixedly connected with a telescopic spring, one side of each telescopic spring is fixedly connected with a negative copper sheet, the other side inner wall of each accommodating groove is fixedly connected with a positive copper sheet, the other side inner wall of each accommodating groove is respectively fixedly connected with a controller and an automatic telescopic rod, the other side inner wall of each accommodating groove is fixedly connected with a detector, and one side of each automatic telescopic rod is fixedly connected with a connector.

Description

Automatic power-off protection device for power lithium battery

Technical Field

The utility model belongs to the technical direction of lithium batteries, and particularly relates to an automatic power-off protection device for a power lithium battery.

Background

Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The lithium metal battery of the fifth generation product of the rechargeable battery is born in 1996, and the safety, the specific capacity, the self-discharge rate and the cost performance ratio of the lithium metal battery are all superior to those of the lithium ion battery.

The existing lithium metal battery does not have a power-off protection function when being charged through the device, so that the lithium metal battery is easy to damage when the lithium metal battery is charged continuously when the lithium metal battery is fully charged. This phenomenon is a problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims at solving the problems in the background technology by aiming at the automatic power-off protection device of the power lithium battery of the existing device.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an automatic power-off protection device of power lithium cell, includes device casing and protective cover, the outer wall fixedly connected with limit strip of device casing, two holding tanks have been seted up respectively to the inner wall of device casing, one side inner wall fixedly connected with telescopic spring of holding tank, one side fixedly connected with negative pole copper sheet of telescopic spring, one opposite side inner wall fixedly connected with anodal copper sheet of holding tank, another one side inner wall of holding tank is fixedly connected with controller and automatic telescopic link respectively, another opposite side inner wall fixedly connected with detector of holding tank, one side fixedly connected with connector of automatic telescopic link through being provided with device casing, limit strip, protective cover, telescopic spring, negative pole copper sheet, anodal, lithium cell body, connecting axle, plug, controller, detector, automatic telescopic link and connector, after the lithium cell body is full of electricity, will realize automatic power-off's work, has then improved holistic protection effect, has avoided lasting the easy damage that leads to, has improved the security when using.

According to the utility model, the bottom of the device shell is fixedly connected with the connecting shaft, and the outer wall of the connecting shaft is movably connected with the plug, so that the connection with an external socket is facilitated.

According to the utility model, the grooves are formed at the two ends of the protective cover, and the grooves of the protective cover are mutually matched with the limit strips, so that the protective cover is conveniently connected with the limit strips.

According to the utility model, the width of the protective cover is larger than that of the device shell, and the protective cover is in sliding connection with the device shell through the limiting strip, so that the protective cover can be conveniently closed or opened.

According to the utility model, the positive copper sheet is electrically connected with the connector, and the lithium battery body is arranged between the positive copper sheet and the negative copper sheet, so that the lithium battery body can be conveniently charged through the positive copper sheet.

According to the utility model, the controller is electrically connected with the automatic telescopic rod, and the detector is electrically connected with the controller, so that the controller can conveniently control the automatic telescopic rod to start, and the detector can conveniently transmit a charging signal to the controller.

According to the utility model, the plug is electrically connected with the connector, and the connector forms a sliding structure with the device shell through the automatic telescopic rod, so that the power is conveniently transmitted to the connector after the plug is inserted into the socket.

According to the lithium battery, the detector is electrically connected with the anode copper sheet, so that the detector can conveniently detect the electric quantity of the lithium battery body.

Compared with the prior art, the utility model has the following beneficial effects: in the present utility model, the number of the components,

(1) Through being provided with device casing, spacing, protective cover, extension spring, negative pole copper sheet, anodal copper sheet, lithium cell body, connecting axle, plug, controller, detector, automatic telescopic link and connector, after the lithium cell body is full of the electricity, will realize the work of automatic power off, improved holistic protection effect then, avoided lasting the easy damage that charges and lead to, improved the security when using.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

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

FIG. 2 is a schematic view of the present utility model in a top-down configuration;

FIG. 3 is a schematic elevational view in cross-section of the present utility model;

fig. 4 is a schematic side view of the present utility model.

In the figure: 1. a device housing; 2. a limit bar; 3. a protective cover; 4. a telescopic spring; 5. a negative copper sheet; 6. a positive copper sheet; 7. a lithium battery body; 8. a connecting shaft; 9. a plug; 10. a controller; 11. a detector; 12. an automatic telescopic rod; 13. and (5) a connector.

Detailed Description

The technical scheme of the present utility model is further described in non-limiting detail below with reference to the preferred embodiments and the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. 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.

Referring to fig. 1-4, the present utility model provides the following technical solutions: the utility model provides an automatic power-off protection device of power lithium cell, including device casing 1 and shield cover 3, device casing 1's outer wall fixedly connected with spacing 2, two holding tanks have been seted up respectively to device casing 1's inner wall, one side inner wall fixedly connected with telescopic spring 4 of one holding tank, one side fixedly connected with negative pole copper sheet 5 of telescopic spring 4, the opposite side inner wall fixedly connected with anodal copper sheet 6 of one holding tank, one side inner wall of another holding tank is fixedly connected with controller 10 and automatic telescopic link 12 respectively, the opposite side inner wall fixedly connected with detector 11 of another holding tank, one side fixedly connected with connector 13 of automatic telescopic link 12, through being provided with device casing 1, spacing 2, shield cover 3, telescopic spring 4, negative pole 5, anodal copper sheet 6, lithium cell body 7, connecting axle 8, plug 9, controller 10, detector 11, automatic telescopic link 12 and connector 13, after lithium cell body 7 is full of electricity, the work of automatic power-off will be realized, then improved holistic protection effect, the easy damage that the copper sheet that leads to has avoided lasting charging, the security when using has been improved.

The bottom fixedly connected with connecting axle 8 of device casing 1, the outer wall swing joint of connecting axle 8 has plug 9, has made things convenient for being connected with outside socket.

Grooves are formed in the two ends of the protective cover 3, and the grooves of the protective cover 3 are mutually matched with the limiting strips 2, so that the protective cover 3 is conveniently connected with the limiting strips 2.

The width of the protective cover 3 is larger than that of the device shell 1, and the protective cover 3 is in sliding connection with the device shell 1 through the limiting strips 2, so that the protective cover 3 is conveniently closed or opened.

The positive copper sheet 6 is electrically connected with the connector 13, and the lithium battery body 7 is arranged between the positive copper sheet 6 and the negative copper sheet 5, so that the lithium battery body 7 can be conveniently charged through the positive copper sheet 6.

The controller 10 is electrically connected with the automatic telescopic rod 12, and the detector 11 is electrically connected with the controller 10, so that the controller 10 can conveniently control the automatic telescopic rod 12 to start, and the detector 11 can conveniently transmit a charging signal to the controller 10.

The plug 9 is electrically connected with the connector 13, and the connector 13 and the device shell 1 form a sliding structure through the automatic telescopic rod 12, so that the plug 9 is convenient to transmit power to the connector 13 after being inserted into a socket.

The detector 11 is electrically connected with the anode copper sheet 6, so that the detector 11 can conveniently detect the electric quantity of the lithium battery body 7.

Firstly, the lithium battery body 7 is installed into the device shell 1, then the plug 9 is shifted to rotate, then the plug 9 is inserted into an external socket, the plug 9 transmits power to the connector 13, the connector 13 charges the lithium battery body 7 through the anode copper sheet 6, after the detector 11 detects that the lithium battery body 7 is fully charged (a sampling resistor is integrated on a chip of the detector 11, when different current flows, different voltage differences are generated, the chip integrates the voltage and the time, the correct electric quantity of the lithium battery body 7 is obtained), a transmission signal is transmitted to the controller 10, the controller 10 controls the automatic telescopic rod 12 to operate, the automatic telescopic rod 12 drives the connector 13 to retract, the connector 13 is disconnected with the anode copper sheet 6, and then the charging work is disconnected.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Finally, it should be pointed out that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides an automatic power-off protection device of power lithium cell, includes device casing (1) and protective cover (3), its characterized in that: the device comprises a device shell (1), and is characterized in that a limiting strip (2) is fixedly connected to the outer wall of the device shell (1), two accommodating grooves are respectively formed in the inner wall of the device shell (1), one accommodating groove is fixedly connected with a telescopic spring (4), one side of the telescopic spring (4) is fixedly connected with a negative copper sheet (5), one accommodating groove is fixedly connected with a positive copper sheet (6), the other accommodating groove is fixedly connected with a controller (10) and an automatic telescopic rod (12) respectively, the other accommodating groove is fixedly connected with a detector (11) respectively on the inner wall of the other accommodating groove, and one automatic telescopic rod (12) is fixedly connected with a connector (13).

2. The automatic power-off protection device for a power lithium battery according to claim 1, wherein: the bottom of the device shell (1) is fixedly connected with a connecting shaft (8), and the outer wall of the connecting shaft (8) is movably connected with a plug (9).

3. The automatic power-off protection device for a power lithium battery according to claim 1, wherein: grooves are formed in the two ends of the protective cover (3), and the grooves of the protective cover (3) are mutually matched with the limiting strips (2).

4. The automatic power-off protection device for a power lithium battery according to claim 3, wherein: the width of the protective cover (3) is larger than that of the device shell (1), and the protective cover (3) is in sliding connection with the device shell (1) through the limit strips (2).

5. The automatic power-off protection device for a power lithium battery according to claim 1, wherein: the positive copper sheet (6) is electrically connected with the connector (13), and a lithium battery body (7) is arranged between the positive copper sheet (6) and the negative copper sheet (5).

6. The automatic power-off protection device for a power lithium battery according to claim 1, wherein: the controller (10) is electrically connected with the automatic telescopic rod (12), and the detector (11) is electrically connected with the controller (10).

7. The automatic power-off protection device for a power lithium battery according to claim 2, wherein: the plug (9) is electrically connected with the connector (13), and the connector (13) and the device shell (1) form a sliding structure through the automatic telescopic rod (12).

8. The automatic power-off protection device for a power lithium battery according to claim 1, wherein: the detector (11) is electrically connected with the anode copper sheet (6).