Temperature detection device of energy storage battery

Abstract

The utility model provides a temperature detection device of an energy storage battery. The temperature detection device comprises a shell, and at least two temperature detection modules, a data synchronization module and an alarm module which are arranged in the shell, the data output end of each temperature detection module is connected with the data input end of the data synchronization module, and the signal output end of the data synchronization module is connected with the signal input end of the alarm module. According to the utility model, through the redundant arrangement of the temperature detection modules, even if one temperature detection module is subjected to external influence factors to cause detection data distortion, the other temperature detection modules can be utilized to carry out temperature detection on the energy storage battery, so that the defense capability to the external influence factors is enhanced; the reliability of temperature detection is obviously improved, and the use safety of the energy storage battery is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection, in particular to a temperature detection device for an energy storage battery. Background Art

[0002] With the widespread application of energy storage batteries in electric vehicles, smart grids, and renewable energy storage, the temperature safety of energy storage batteries has become an issue that requires attention during their use. If the temperature of an energy storage battery rises abnormally during operation or charging, it may cause battery performance to deteriorate, shorten its lifespan, or even trigger thermal runaway, leading to serious accidents such as fire or explosion. Existing temperature detection devices for energy storage batteries are generally unable to effectively address the problem of detection data distortion caused by external factors such as electromagnetic interference and temperature sensor data tampering, and thus cannot guarantee the safety of energy storage batteries. Utility Model Content

[0003] The utility model provides a temperature detection device for an energy storage battery. Through the redundant setting of temperature detection modules, even if one of the temperature detection modules is affected by external factors and causes distortion of detection data, the remaining temperature detection modules can be used to detect the temperature of the energy storage battery, thereby enhancing the defense capability against external factors, significantly improving the reliability of temperature detection, and ensuring the safety of the energy storage battery.

[0004] In order to solve the above technical problems, the embodiment of the present utility model provides a temperature detection device for an energy storage battery, comprising a housing and at least two temperature detection modules, a data synchronization module and an alarm module arranged in the housing;

[0005] The data output end of each temperature detection module is connected to the data input end of the data synchronization module, and the signal output end of the data synchronization module is connected to the signal input end of the alarm module.

[0006] As a preferred solution, the temperature detection module includes a temperature sensor and a signal processing unit;

[0007] The signal output end of the temperature sensor is connected to the signal input end of the signal processing unit, and the data output end of the signal processing unit is connected to the data input end of the data synchronization module.

[0008] As a preferred solution, the signal processing unit includes a signal conditioning subunit, an analog-to-digital conversion subunit and a microprocessor;

[0009] The signal output end of the temperature sensor is connected to the signal input end of the signal conditioning subunit, the signal output end of the signal conditioning subunit is connected to the signal input end of the analog-to-digital conversion subunit, the signal output end of the analog-to-digital conversion subunit is connected to the signal input end of the microprocessor, and the data output end of the microprocessor is connected to the data input end of the data synchronization module.

[0010] As a preferred solution, the device further includes at least two power modules; the power supply end of the power module is connected to the power receiving end of the temperature sensor.

[0011] As a preferred solution, the device further includes a display module; and the signal output end of the data synchronization module is connected to the signal input end of the display module.

[0012] As a preferred solution, the display module is specifically a touch display screen.

[0013] As a preferred solution, the alarm module includes an audible and visual alarm and a remote alarm module.

[0014] As a preferred solution, the shell is made of a high-temperature resistant and corrosion-resistant material; wherein, the high-temperature resistant and corrosion-resistant material includes but is not limited to stainless steel, aluminum alloy and polytetrafluoroethylene.

[0015] As a preferred solution, the temperature sensor is specifically an NTC thermistor or a PT100 platinum resistor.

[0016] Compared with the prior art, the beneficial effect of the embodiments of the present invention is that, through the redundant setting of the temperature detection modules, even if one of the temperature detection modules is affected by external factors and the detection data is distorted, the remaining temperature detection modules can be used to perform temperature detection on the energy storage battery, thereby enhancing the defense capability against external factors, significantly improving the reliability of temperature detection, and ensuring the safety of the energy storage battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a temperature detection device for an energy storage battery in an embodiment of the present utility model;

[0018] Among them, 1. Shell; 2. Data synchronization module; 3. Alarm module; 4. Temperature sensor; 5. Signal processing unit; 501. Signal conditioning subunit; 502. Analog-to-digital conversion subunit; 503. Microprocessor; 6. Display module; 7. Power supply module. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See Figure 1 , an embodiment of the utility model provides a temperature detection device for an energy storage battery, comprising a housing 1 and at least two temperature detection modules, a data synchronization module 2 and an alarm module 3 arranged in the housing 1;

[0021] The data output end of each temperature detection module is connected to the data input end of the data synchronization module 2 , and the signal output end of the data synchronization module 2 is connected to the signal input end of the alarm module 3 .

[0022] Specifically, the housing 1 in this embodiment is used to protect the various components arranged therein, and prevent the external environment (such as water, dust, etc.) from affecting the temperature detection device. Furthermore, this embodiment is provided with at least two independent temperature detection modules in the housing 1, which are used to detect the temperature of the energy storage battery, ensuring that when one of the temperature detection modules fails due to external factors, the other temperature detection modules can also maintain normal operation to continue to detect the temperature of the energy storage battery, thereby ensuring the reliability of temperature detection. It is worth noting that this embodiment does not specifically limit the number of temperature detection modules. For example, there can be 2, 3, 4, 5, etc. temperature detection modules, which will not be repeated in this embodiment.

[0023] Furthermore, this embodiment uses data synchronization module 2 to synchronize and cross-validate the temperature detection data from each temperature detection module. If data synchronization module 2 detects that the difference in temperature detection data between any two temperature detection modules exceeds a preset deviation threshold, it will record the abnormality and issue an alarm through alarm module 3. Data synchronization module 2 also has a data logging function, storing historical temperature detection data for subsequent analysis and fault tracing.

[0024] When the temperature detection module fails, the functions and mechanisms of the data synchronization module 2 need to be adjusted accordingly to ensure the accuracy and consistency of the temperature detection data, as follows:

[0025] (1) When all temperature detection modules are working normally, the data synchronization module 2 will simultaneously receive the temperature detection data of each temperature detection module, and perform comparison, verification and signal processing, such as filtering, amplification, etc., to ensure the accuracy and reliability of the data. It is worth noting that the data synchronization module 2 can use historical temperature detection data to verify the received temperature detection data. If the difference is large, an alarm will be issued through the alarm module 3. During the data comparison process, if it is detected that the difference in temperature detection data of any two temperature detection modules is less than the preset deviation threshold, the temperature detection data will be fused by weighted averaging; if it is detected that the difference in temperature detection data of any two temperature detection modules exceeds the preset deviation threshold, abnormal information will be recorded and an alarm will be issued through the alarm module 3. It is worth noting that if the fused temperature detection data is greater than the preset temperature threshold, it indicates that the temperature of the current energy storage battery is too high. At this time, the data synchronization module 2 sends an alarm signal to the alarm module 3 to issue an alarm.

[0026] (2) When a temperature detection module fails, the data synchronization module 2 will receive a failure signal sent by the temperature detection module, and stop receiving the temperature detection data of the temperature detection module in response to the failure signal. For other temperature detection modules that are working normally, the data synchronization module 2 will continue to perform comparison, verification and signal processing to ensure the accuracy and reliability of the data.

[0027] In addition, upon receiving the failure signal, the data synchronization module 2 will record the time of the failure and related information, and issue an alarm through the alarm module 3 so that maintenance personnel can carry out repairs or replacements in a timely manner.

[0028] (3) When the failed temperature detection module returns to normal working state, the data synchronization module 2 will confirm whether each temperature detection module is in normal working state based on the status detection results of each temperature detection module. If so, it will receive the temperature detection data of each temperature detection module again and perform comparison, verification and signal processing.

[0029] As a preferred solution, the temperature detection module includes a temperature sensor 4 and a signal processing unit 5;

[0030] The signal output end of the temperature sensor 4 is connected to the signal input end of the signal processing unit 5 , and the data output end of the signal processing unit 5 is connected to the data input end of the data synchronization module 2 .

[0031] In this embodiment, the temperature detection module further includes a temperature sensor 4 and a signal processing unit 5. The temperature sensor 4 is used to detect the temperature of the energy storage battery and send the detection signal to the signal processing unit 5. The signal processing unit 5 is used to amplify, filter, perform analog-to-digital conversion, and perform data analysis on the temperature detection signal of the temperature sensor 4 to ensure the accuracy and reliability of the data.

[0032] As a preferred solution, the signal processing unit 5 includes a signal conditioning subunit 501, an analog-to-digital conversion subunit 502 and a microprocessor 503;

[0033] The signal output end of the temperature sensor 4 is connected to the signal input end of the signal conditioning subunit 501, the signal output end of the signal conditioning subunit 501 is connected to the signal input end of the analog-to-digital conversion subunit 502, the signal output end of the analog-to-digital conversion subunit 502 is connected to the signal input end of the microprocessor 503, and the data output end of the microprocessor 503 is connected to the data input end of the data synchronization module 2.

[0034] In this embodiment, the signal processing unit 5 further includes a signal conditioning subunit 501, an analog-to-digital conversion subunit 502 and a microprocessor 503. It can be understood that the signal conditioning subunit 501 is used to amplify and filter the temperature detection signal of the temperature sensor 4, thereby outputting a processed analog signal, and the analog-to-digital conversion subunit 502 is used to perform analog-to-digital conversion on the analog signal output by the signal conditioning subunit 501, thereby outputting a corresponding digital signal, and the microprocessor 503 is used to analyze and process the temperature detection data recorded in the digital signal, such as filling in missing values, processing abnormal values, etc., and finally sending the processed temperature detection data to the data synchronization module 2.

[0035] As a preferred solution, the device further includes at least two power modules 7 ; the power supply end of the power module 7 is connected to the power receiving end of the temperature sensor 4 .

[0036] Specifically, this embodiment provides power to each temperature detection module by providing an independent power module 7. Even if one of the power modules 7 fails and causes the corresponding temperature detection module to be unable to operate, the remaining power modules 7 can still normally power the other temperature detection modules, thereby ensuring the stable operation of the temperature detection device. Preferably, each power module 7 is composed of a power management circuit and a battery pack. The power management circuit has overvoltage, overcurrent, and short-circuit protection functions, and is used to manage the charging and discharging of the battery pack to ensure the safety and stability of the power module 7. The battery pack uses a high-energy-density lithium battery with long-term power supply capability and fast charging characteristics to ensure the continuous operation of the temperature detection device in an emergency.

[0037] As a preferred solution, the device further includes a display module 6 ; the signal output end of the data synchronization module 2 is connected to the signal input end of the display module 6 .

[0038] Specifically, this embodiment sets a display module 6 and connects the signal output end of the data synchronization module 2 with the signal input end of the display module 6, so that the temperature detection results of the energy storage battery and the working status of each temperature detection module can be displayed in real time through the display module 6. The display interface has multiple display modes preset, such as graphic mode, numerical mode, etc., and users can switch according to needs.

[0039] As a preferred solution, the display module 6 is specifically a touch display screen.

[0040] Specifically, in order to facilitate user operation, the display module 6 in this embodiment is specifically a touch display screen, and the user can perform parameter setting and data query through touch operation when in use.

[0041] As a preferred solution, the alarm module 3 includes an audible and visual alarm and a remote alarm module 3 .

[0042] Specifically, the alarm module 3 in this embodiment further includes an audible and visual alarm and a remote alarm module 3. When the data synchronization module 2 detects that the temperature detection data of the temperature detection module exceeds the preset temperature threshold, or detects that the difference in temperature detection data of any two temperature detection modules exceeds the preset deviation threshold, an on-site alarm can be issued through the audible and visual alarm to remind the operator to pay attention and troubleshoot the fault in time, and the remote alarm module 3 uses wireless communication methods such as WiFi, GPRS, etc. to send the alarm information to the remote monitoring center or the terminal device of the manager to ensure that timely response measures can be taken.

[0043] As a preferred solution, the housing 1 is made of a high-temperature resistant and corrosion-resistant material; wherein the high-temperature resistant and corrosion-resistant material includes but is not limited to stainless steel, aluminum alloy and polytetrafluoroethylene.

[0044] Specifically, in order to ensure the reliability of the temperature detection device in high temperature scenarios, the shell 1 in this embodiment is made of high temperature resistant and corrosion-resistant materials, such as stainless steel, aluminum alloy and polytetrafluoroethylene, so that the shell 1 has excellent heat dissipation performance.

[0045] As a preferred solution, the temperature sensor 4 is specifically an NTC thermistor or a PT100 platinum resistor.

[0046] Specifically, the temperature sensor 4 in this embodiment is specifically an NTC thermistor or a PT100 platinum resistor. The use of these high-precision temperature sensors 4 can ensure accurate collection of the energy storage battery temperature.

[0047] The temperature detection device for an energy storage battery provided by the embodiment of the present invention utilizes redundant temperature detection modules. Even if one temperature detection module is affected by external factors and causes distortion in detection data, the remaining temperature detection modules can still be used to detect the temperature of the energy storage battery. This enhances the ability to defend against external factors, significantly improves the reliability of temperature detection, and ensures the safety of the energy storage battery.

[0048] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A temperature detection device for an energy storage battery, characterized in that: It comprises a housing and at least two temperature detection modules, a data synchronization module and an alarm module arranged in the housing; The data output end of each temperature detection module is connected to the data input end of the data synchronization module, and the signal output end of the data synchronization module is connected to the signal input end of the alarm module.

2. The temperature detection device for the energy storage battery according to claim 1, characterized in that: The temperature detection module includes a temperature sensor and a signal processing unit; The signal output end of the temperature sensor is connected to the signal input end of the signal processing unit, and the data output end of the signal processing unit is connected to the data input end of the data synchronization module.

3. The temperature detection device for the energy storage battery according to claim 2, characterized in that: The signal processing unit includes a signal conditioning subunit, an analog-to-digital conversion subunit and a microprocessor; The signal output end of the temperature sensor is connected to the signal input end of the signal conditioning subunit, the signal output end of the signal conditioning subunit is connected to the signal input end of the analog-to-digital conversion subunit, the signal output end of the analog-to-digital conversion subunit is connected to the signal input end of the microprocessor, and the data output end of the microprocessor is connected to the data input end of the data synchronization module.

4. The temperature detection device for the energy storage battery according to claim 2, characterized in that: The device further comprises at least two power supply modules; the power supply end of the power supply module is connected to the power receiving end of the temperature sensor.

5. The temperature detection device for the energy storage battery according to claim 1, characterized in that: The device further includes a display module; a signal output end of the data synchronization module is connected to a signal input end of the display module.

6. The temperature detection device for the energy storage battery according to claim 5, characterized in that: The display module is specifically a touch display screen.

7. The temperature detection device for the energy storage battery according to claim 1, characterized in that: The alarm module includes an audible and visual alarm and a remote alarm module.

8. The temperature detection device for the energy storage battery according to claim 1, wherein: The housing is made of a high-temperature resistant and corrosion-resistant material; wherein the high-temperature resistant and corrosion-resistant material includes but is not limited to stainless steel, aluminum alloy and polytetrafluoroethylene.

9. The temperature detection device for the energy storage battery according to claim 2, characterized in that: The temperature sensor is specifically an NTC thermistor or a PT100 platinum resistor.

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