CN217562646U

CN217562646U - Device for detecting pressure intensity

Info

Publication number: CN217562646U
Application number: CN202220040220.7U
Authority: CN
Inventors: 李卫东; 吴若渠; 杨福盛; 邹明华; 张俊峰
Original assignee: Modern Times Qingdao New Energy Technology Co ltd
Current assignee: Modern Times Qingdao New Energy Technology Co ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-10-11
Anticipated expiration: 2032-01-07

Abstract

The utility model relates to a pressure detection area in the battery discloses a device for detecting pressure for detect the pressure in the battery, including the battery, the inside detection circuit board that is equipped with of electricity core of battery, install forced induction module and wireless communication module on the detection circuit board, wireless communication module and the utmost point ear signal connection of battery and through the outside firing signal of utmost point ear of battery, through built-in forced induction module and wireless communication module and regard battery utmost point ear as the antenna, can in time, accurately detect the pressure in the battery, wireless communication module includes WIFI unit or bluetooth unit to support various wireless communication agreements, for example, zigbee, the waterproof grade of detection circuit board after encapsulation processing or applying paint waterproof glue with a brush reaches IP68.

Description

Device for detecting pressure intensity

Technical Field

The utility model relates to a press the detection area in the battery, especially relate to a device for detecting pressure.

Background

The lithium battery has the advantages of high safety, large specific capacity, low self-discharge rate and the like, and is widely applied to the fields of digital electronics, power batteries and the like. The lithium battery can generate heat in the using process, so that the temperature of the battery is increased, and the influence of the temperature on the battery is very important; when the temperature of the battery reaches more than 50 ℃, the interface stability of the internal material of the battery is reduced, the side reaction of the electrolyte is increased, the circulation stability of the battery is reduced, and the service life of the battery is shortened. When the temperature is further increased, the battery material is decomposed, so that the battery exothermic reaction is intensified, when the temperature reaches the heat-resistant limit of the battery internal diaphragm, the diaphragm is melted, so that the internal short circuit of the battery is caused, and at the moment, the battery instantaneously emits a large amount of heat, so that the battery is ignited, burnt and even exploded. In addition, since the battery generally uses an organic liquid as an electrolyte, when the temperature of the battery rises or the battery is overcharged and overdischarged, the electrolyte inside the battery is vaporized or decomposed, so that a large amount of gas is generated, and the pressure of the gas inside the battery rises. It is seen that monitoring of the internal pressure of the battery is crucial to the performance and cycle life of the battery, but the battery produced on the market at present is a sealed system, and no pressure detection device is arranged inside the battery, so that the internal pressure condition of the battery is difficult to obtain.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the above insufficiency, and aims to provide a technical scheme which can solve the above problems.

The utility model provides a device for detecting pressure for detect the battery internal pressure, includes the battery, the inside detection circuit board that is equipped with of electric core of battery, install forced induction module and wireless communication module on the detection circuit board, wireless communication module and the utmost point ear signal connection of battery and the utmost point ear through the battery outwards transmit signal.

As one improvement of the technical scheme, a waterproof package is arranged on the outer side of the detection circuit board.

As one improvement of the technical scheme, waterproof glue is coated on the detection circuit board.

As one improvement of the above technical solution, the detection circuit board is mounted on an inner wall of a cell of the battery.

As one improvement of the above technical solution, the pressure sensing module is a sheet pressure sensor or/and a gas pressure sensor.

As one improvement of the above technical solution, the wireless communication module includes a WIFI unit or/and a bluetooth unit.

As one improvement of the technical scheme, an antenna is embedded on the side face of a lug of the battery, a diaphragm is arranged between the antenna and the lug of the battery, and the antenna is in signal connection with the wireless communication module.

Compared with the prior art, the beneficial effects of the utility model are that: the built-in pressure sensing module and the wireless communication module use the battery tab as an antenna so as to transmit signals, and the internal pressure of the battery can be timely and accurately detected.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is another schematic structural diagram of the present invention.

Fig. 3 is a schematic structural diagram of the antenna of the present invention.

In the figure: 1. the battery, 2, electric core, 3, utmost point ear, 4, detection circuit board, 5, forced induction module, 6, wireless communication module, 7, electrolyte, 8, main control chip, 9, encapsulation, 10, waterproof glue, 11, antenna, 12, diaphragm.

Detailed Description

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

Please refer to fig. 1 and fig. 2, in an embodiment of the present invention, a device for detecting pressure, a pressure detecting device for detecting pressure in a lithium battery 1, including a battery 1, the battery 1 has a battery core 2 and a tab 3, a detecting circuit board 4 is disposed inside the battery core 2 of the battery 1, a pressure sensing module 5 and a wireless communication module 6 are installed on the detecting circuit board 4, the detecting circuit board 4 is (waterproof) packaged 9 to process or is coated with a waterproof adhesive 10 on the surface, the battery 1 is charged or discharged or receives external pressure, the pressure sensing module 5 can timely detect the change of pressure in the battery 1, and the tab 3 signal of the wireless communication module 6 and the battery 1, the electric signal converted by the pressure sensing module 5 is transmitted to the wireless communication module 6 through the detecting circuit board 4, the wireless communication module 6 transmits a signal through the tab 3 of the battery 1 so that the external terminal can receive (for example, a mobile phone).

In the implementation process, in order to make the detection data more accurate, the detection circuit board 4 needs to be fixed, for example, it is installed on the inner wall of the electric core 2 of the battery 1, and of course, when the waterproof grade of the detection circuit board 4 after the encapsulation 9 is processed or the waterproof glue 10 is coated reaches IP68, the detection circuit board 4 may also be arranged between the electrolytes 7 of the battery 1, and the fixing manner may depend on the fixed connection with the tab 3.

For the pressure sensing module 5 for detecting the internal pressure of the battery 1 to be a chip pressure sensor or/and a gas pressure sensor, the wireless communication module 6 may be a WIFI unit or/and a bluetooth unit, and support various wireless communication protocols, for example, zigbee, the WIFI unit or/and the bluetooth unit is specifically a bluetooth chip and a WIFI chip, and selecting a chip with low power consumption and small size is a routine operation well known to those skilled in the art, preferably, the main control chip 8 may be further mounted on the detection circuit board 4, the wireless communication mode is not limited thereto, as shown in fig. 3, an antenna 11 may be further mounted on the side surface of the tab 3 of the battery 1, and is in signal connection with the wireless communication module 6 through the antenna 11, at this time, the signal detected by the pressure sensing module 5 may not only be wirelessly transmitted, but also may be transmitted by wire, because the antenna 11 is mounted in the tab 3, the antenna 11 and the tab 3 are further configured with a diaphragm 12, and the top of the slot for the tab 3 may also be partially left for wire connection.

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 device for detecting pressure for detect the battery internal pressure, its characterized in that, which comprises a battery, the inside detection circuitry board that is equipped with of electric core of battery, install forced induction module and wireless communication module on the detection circuitry board, wireless communication module and the utmost point ear signal connection of battery and the utmost point ear outgoing emission signal through the battery.

2. An apparatus for sensing pressure as defined in claim 1, wherein: and waterproof packaging is arranged on the outer side of the detection circuit board.

3. An apparatus for sensing pressure as defined in claim 1, wherein: waterproof glue is coated on the detection circuit board.

4. A device for detecting pressure as claimed in any one of claims 2 or 3, wherein: the detection circuit board is installed on the inner wall of the battery cell of the battery.

5. An apparatus for sensing pressure as defined in claim 1, wherein: the pressure sensing module is a sheet type pressure sensor or/and a gas pressure sensor.

6. An apparatus for sensing pressure as defined in claim 1, wherein: the wireless communication module comprises a WIFI unit or/and a Bluetooth unit.

7. A device for detecting pressure as claimed in claim 1, wherein: the battery is characterized in that an antenna is embedded on the side face of a lug of the battery, a diaphragm is arranged between the antenna and the lug of the battery, and the antenna is in signal connection with the wireless communication module.