Power battery failure monitoring device

Abstract

The utility model discloses a power battery failure monitoring device, which comprises an electrode wiring terminal, a battery module, battery cells, a lead, a temperature monitoring device, a battery cell bulging device, a module control module, a battery control module, an output control module and an alarm buzzer, the battery module is connected with the battery control module, the positive electrode and the negative electrode of the battery module are connected with the positive electrodes and the negative electrodes of the battery cells through electrode wiring terminals, the multiple battery cells are connected to the module control module in parallel, the module control module is connected with the battery control module, the battery control module is connected with the output control module, and the output control module is connected with an alarm buzzer. Through the mode, the power battery failure monitoring device can automatically detect the charging and discharging temperature of a power battery of a new energy automobile and the swelling condition of a battery cell, and can well solve the problems of temperature detection and monitoring of the swelling condition of the battery cell of an existing power battery.

Description

Technical Field

[0001] The utility model relates to a power battery failure monitoring device. Background Art

[0002] With the development of my country's new power system and transportation electrification, energy storage systems, especially battery energy storage systems, have received more and more attention. The power battery system of new energy vehicles will generate a lot of heat during charging and discharging. If it cannot be cooled in time and effectively, it will cause the internal temperature of the battery to rise rapidly and the system temperature consistency to deteriorate, affecting its working performance, shortening its service life, and may cause serious accidents. Therefore, in order to ensure the long-term safe and efficient operation of the battery energy storage system, it is necessary to predict its temperature changes during charging and discharging under different working conditions and environments. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a power battery failure monitoring device, which can automatically detect the charging and discharging temperature and battery cell bulging of the power battery of new energy vehicles, and can well solve the existing power battery temperature detection and battery cell bulging monitoring problems.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a power battery failure monitoring device, including electrode terminals, battery modules, battery cells, wires, temperature monitoring devices, battery cell bulging devices, module control modules, battery control modules, output control modules and alarm buzzers. The battery module is composed of multiple battery cells whose positive and negative electrodes are connected in series in sequence through wires, and the positive and negative electrodes of the battery module are connected to the positive and negative electrodes of the battery cells by electrode terminals. The multiple battery cells are respectively connected in parallel on the module control module. The temperature monitoring device monitors the temperature of any battery cell, and the battery cell bulging device monitors the pressure changes of two adjacent battery cells. The module control module is connected to the battery control module, and the battery control module is connected to the output control module. The output control block is connected with an alarm buzzer.

[0005] In a preferred embodiment of the present invention, the temperature monitoring device includes a temperature sensor and a temperature display screen.

[0006] In a preferred embodiment of the present invention, a temperature sensor is connected to any of the battery cells, and the temperature sensor is connected to the module control block.

[0007] In a preferred embodiment of the present utility model, the temperature display screen is connected to the output control module.

[0008] In a preferred embodiment of the present invention, the battery cell bulging device includes a pressure sensor and a pressure display screen.

[0009] In a preferred embodiment of the present invention, a pressure sensor is connected between two adjacent battery cells, and the pressure sensor is connected to the module control block.

[0010] In a preferred embodiment of the present utility model, the pressure display screen is connected to the output control module.

[0011] In a preferred embodiment of the present invention, a plurality of the module control modules are connected in parallel to the battery control module.

[0012] The beneficial effect of the utility model is that the power battery failure monitoring device pointed out by the utility model can automatically detect the charging and discharging temperature and battery cell bulging condition of the power battery of new energy vehicles, and can well solve the existing power battery temperature detection and battery cell bulging monitoring problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0014] Figure 1 This is a structural schematic diagram of a battery module of a preferred embodiment of a power battery failure monitoring device of the utility model;

[0015] Figure 2 It is a schematic diagram of a temperature detection device and a cell bulging device of a preferred embodiment of a power battery failure monitoring device of the utility model;

[0016] Figure 3 The utility model is a circuit diagram of a battery cell bulging device of a preferred embodiment of a power battery failure monitoring device. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 Combination Figure 2-Figure 3 , the utility model embodiment includes:

[0019] A power battery failure monitoring device comprises an electrode terminal 1, a battery module 2, a battery cell 3, a wire 4, a temperature monitoring device, a battery cell bulging device, a module control module 7, a battery control module 8, an output control module 9 and an alarm buzzer 12.

[0020] The battery module 2 is composed of a plurality of battery cells 3 whose positive and negative electrodes are connected in series in sequence through wires 4, and the positive and negative electrodes of the battery module 2 are connected to the positive and negative electrodes of the battery cells 3 using electrode terminals 1 to facilitate external wiring of the battery module 2.

[0021] The plurality of battery cells 3 are respectively connected in parallel to the module control module 7 to achieve independent control of a single battery cell 3 .

[0022] The temperature monitoring device includes a temperature sensor 5 and a temperature display screen 10. Any of the battery cells 3 is connected to a temperature sensor 5, and the temperature sensor 5 is connected to the module control block. The temperature display screen 10 is connected to the output control module 9 to monitor the temperature of each battery cell 3 in real time.

[0023] The battery cell bulging device includes a pressure sensor 6 and a pressure display screen 11. The pressure sensor 6 is connected between two adjacent battery cells 3, and the pressure sensor 6 is connected to the module control block. The pressure display screen 11 is connected to the output control module 9 to monitor the pressure changes between the two adjacent battery cells 3 in real time.

[0024] The module control module 7 is connected to the battery control module 8, and the battery control module 8 is connected to the output control module 9. The output control module is connected to an alarm buzzer 12. Multiple module control modules 7 are connected in parallel to the battery control module 8 to achieve unified control of multiple module control modules 7 by a single battery control module 8.

[0025] The module control module 7 collects and judges the signals of the temperature sensor 5 and the pressure sensor 6, and sends a signal to the battery control module 8. The battery control module 8 sends a warning message to the output control module 9. The output control module 9 controls the temperature display screen 10 to display the module temperature information, controls the pressure display screen 11 to display the module pressure information, and the alarm buzzer 12 sounds to remind the operator.

[0026] When the new energy vehicle of the utility model is working, the power battery module 3 starts to charge and discharge, the temperature sensor 5 detects the temperature of the battery cell 3, and the temperature sensor 5 transmits the temperature signal to the module control module 7. The module control module 7 collects and judges the temperature signal transmitted by the temperature sensor 5. If the module control module 7 judges that the module temperature is too high, it sends a signal to the battery control module 8, and the battery control module 8 sends a warning message to the output control module 9. The output control module 9 controls the temperature display screen 10 to display the module temperature information, and the alarm buzzer 12 sounds to remind the operator.

[0027] When the new energy vehicle of the utility model is working, the pressure sensor 6 detects the pressure change between adjacent battery cells 3, and the pressure sensor 6 transmits the pressure change signal between the battery cells to the module control module 7. The module control module 7 collects and judges the pressure signal between the battery cells 3 transmitted by the pressure sensor 6. If the battery cells bulge, the pressure between the battery cells 3 will change. If the pressure change between the battery cells 3 exceeds the prescribed range, the module control module 7 sends a signal to the battery control module 8, and the battery control module 8 sends a warning message to the output control module 9. The output control module 9 controls the pressure display screen 11 to display the module pressure information, and the alarm buzzer 12 sounds to remind the operator.

[0028] In summary, the power battery failure monitoring device pointed out in the utility model can automatically detect the charging and discharging temperature and battery cell bulging condition of the power battery of new energy vehicles, and can well solve the existing power battery temperature detection and battery cell bulging monitoring problems.

[0029] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A power battery failure monitoring device, characterized in that: It includes electrode terminals, a battery module, a battery cell, a wire, a temperature monitoring device, a battery cell bulging device, a module control module, a battery control module, an output control module and an alarm buzzer. The battery module is composed of multiple battery cells whose positive and negative electrodes are connected in series in sequence through wires, and the positive and negative electrodes of the battery module are connected to the positive and negative electrodes of the battery cells by electrode terminals. Multiple battery cells are respectively connected in parallel on the module control module. The temperature monitoring device monitors the temperature of any battery cell, and the battery cell bulging device monitors the pressure change of two adjacent battery cells. The module control module is connected to the battery control module, and the battery control module is connected to the output control module. The output control module is connected with an alarm buzzer.

2. The power battery failure monitoring device according to claim 1, characterized in that: The temperature monitoring device comprises a temperature sensor and a temperature display screen.

3. The power battery failure monitoring device according to claim 1, characterized in that: Any of the battery cells is connected to a temperature sensor, and the temperature sensor is connected to the module control block.

4. The power battery failure monitoring device according to claim 2, characterized in that: The temperature display screen is connected to the output control module.

5. The power battery failure monitoring device according to claim 1, characterized in that: The battery cell bulging device includes a pressure sensor and a pressure display screen.

6. The power battery failure monitoring device according to claim 5, characterized in that: A pressure sensor is connected between two adjacent battery cells, and the pressure sensor is connected to the module control block.

7. The power battery failure monitoring device according to claim 5, characterized in that: The pressure display screen is connected to the output control module.

8. The power battery failure monitoring device according to claim 1, characterized in that: A plurality of the module control modules are connected in parallel to the battery control module.

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