UPS (Uninterrupted Power Supply) energy storage device with cell form monitoring function

Abstract

The utility model relates to the technical field of safety monitoring of energy storage batteries, in particular to a UPS (Uninterrupted Power Supply) energy storage device with a cell form monitoring function, which comprises a sensor group assembly, an energy storage battery and a signal acquisition and processing module which are arranged in a shell of the UPS energy storage device, and a display module and an alarm module which are arranged on the shell of the UPS energy storage device, the sensor assembly is arranged in the energy storage battery; the signal acquisition and processing module is arranged outside the energy storage battery and is electrically connected with the sensor assembly; the display module and the alarm module are electrically connected with the signal acquisition and processing module. By improving the composition and the structure of the sensor assembly, the UPS energy storage device can simultaneously monitor the overall or regional expansion state of the battery cell unit and the temperature and expansion force signals of the monitoring point position, and the real-time monitoring and early warning capability of the UPS energy storage device on the state of the internal energy storage battery is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage battery safety monitoring technical field, especially in a kind of UPS energy storage device with electric core form monitoring function. BACKGROUND

[0002] UPS energy storage device is a kind of device that can effectively protect precision instruments without interruption due to temporary power failure, is widely used in aviation, aerospace, communication, national defense, hospital, nuclear power plant, fire safety alarm system and wireless communication system etc., the application of UPS energy storage device can reduce power loss, improve power quality and effectively improve the utilization rate of existing equipment etc..Meanwhile, with the in-depth study of energy storage technology and the gradual deepening of practical use, energy storage technology is developing towards energy conversion high efficiency, energy high density and application low cost direction, and higher requirements for the safety monitoring capability of UPS energy storage device are put forward.

[0003] However, the existing UPS energy storage device, most of them are monitoring voltage, current etc., lack real-time monitoring and early warning to the form change, temperature change etc. of electric core in UPS power supply, cannot timely find the safety hazard of UPS energy storage device, such as the phenomenon of electric core bulging, thermal runaway etc. in UPS power supply;And, the detection device that can be used to monitor the form change and temperature change of electric core in power supply currently applied generally includes thin film pressure sensor, temperature sensor and its supporting collector and early warning system;Among them, thin film pressure sensor, temperature sensor is usually arrayed multi-sensing point structure, according to the size and area of battery pack, comprehensive consideration cost, design different size array density pressure sensing point and temperature sensing point, and through the monitoring data of each sensing point, the monitoring state of electric core is evaluated and early warning is given. As can be seen, temperature and pressure monitoring are usually limited by cost, cannot be densely distributed on the surface of electric core, so that the detection device cannot monitor the structure state of electric core in real time;And, abnormal pressure, temperature change etc. occurring in non-probing point or non-probing area also cannot be effectively monitored, and the opportunity of early warning may be missed. Therefore, it is necessary to develop a kind of UPS energy storage device capable of monitoring the structure state of electric core and the pressure, temperature change in different regions in real time.

[0004] The utility model provides a kind of UPS energy storage device with electric core form monitoring function, to solve the problems of prior art, such as the existing detection device cannot monitor the structure state of electric core in real time, cannot monitor abnormal pressure, temperature change etc. occurring in non-probing point or non-probing area, detection cost is high etc. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of UPS energy storage device with electric core form monitoring function, to solve the problems of the prior art that the existing detection device cannot monitor the state of electric core structure in real time, cannot monitor abnormal pressure and temperature changes occurring in non-detection points or non-detection areas, and has high detection cost.

[0006] The technical scheme of the utility model is: a kind of UPS energy storage device with electric core form monitoring function, including the sensor component of being arranged in the UPS energy storage device shell, energy storage battery, signal acquisition processing module, display module and alarm module being arranged on the UPS energy storage device shell;

[0007] The sensor component is arranged inside the energy storage battery;The signal acquisition processing module is arranged outside the energy storage battery and is electrically connected with the sensor component;The sensor component includes facing tensile sensor, flexible distributed temperature sensor and flexible distributed pressure sensor;

[0008] The display module and the alarm module are electrically connected with the signal acquisition processing module.

[0009] Preferably, the energy storage battery includes battery shell, a plurality of electric core units arranged inside the battery shell;The surface of each electric core unit is pasted with the facing tensile sensor;The flexible distributed temperature sensor and the flexible distributed pressure sensor are sequentially arranged between adjacent two electric core units;The signal acquisition processing module is arranged on the battery shell;The facing tensile sensor, the flexible distributed temperature sensor and the flexible distributed pressure sensor are electrically connected with the signal acquisition processing module.

[0010] Preferably, the facing tensile sensor is composed of elastic fabric and 1-3 fabric type tensile sensors distributed on the elastic fabric;Four edges of the elastic fabric are fixedly pasted on the electric core unit by temperature-resistant double-sided adhesive.

[0011] Preferably, the elastic fabric is interwoven by elastic fiber and non-elastic fiber resistant to high temperature;The thickness of the elastic fabric is 0.1-0.3mm.

[0012] Preferably, the fabric type tensile sensor is woven by elastic yarn coated with conductive paint or prepared by coating a layer of micro-crack structure conductive paint on elastic fabric.

[0013] Preferably, the length and width of the fabric type tensile sensor are both 1-5cm.

[0014] Preferably, the temperature test range of the flexible distributed temperature sensor is-20-300 DEG C.

[0015] The flexible distributed pressure sensor has a pressure test range of 1-700 kPa.

[0016] Compared with the prior art, the UPS energy storage device has the advantages that:

[0017] (1) The UPS energy storage device with the battery cell form monitoring function can simultaneously and in real time monitor the expansion state of the whole or the sub-regions of the battery cell unit and the temperature and expansion force signal of the monitoring point position, improves the real-time monitoring and early warning capability of the UPS energy storage device on the state of the internal energy storage battery, and improves the safety of the whole UPS energy storage device; and the cost of temperature and pressure monitoring is low; solves the problems of the prior art, such as the inability of the existing detection device to monitor the battery cell structure state in real time, the inability to monitor abnormal pressure and temperature changes occurring in non-detection points or non-detection regions, and high detection cost.

[0018] (2) The UPS energy storage device with the battery cell form monitoring function can realize real-time monitoring of the temperature of different region test points in the energy storage battery by arranging the flexible distributed temperature sensor in the energy storage battery; realize real-time monitoring of the expansion force of different region test points in the energy storage battery by arranging the flexible distributed pressure sensor in the energy storage battery; and realize real-time monitoring of the surface overall expansion or sub-regional expansion of the battery cell unit by arranging the stretch-oriented sensor in the energy storage battery; and the UPS energy storage device can simultaneously and in real time monitor the expansion state of the whole or the sub-regions of the battery cell unit and the temperature and expansion force data information of the monitoring point position, and makes up for the defects of the existing pressure and temperature sensors in that they cannot effectively monitor abnormal pressure and temperature signals at non-monitoring points. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described in connection with the drawings and embodiments:

[0020] Figure 1 The utility model discloses a structure schematic diagram of the UPS energy storage device

[0021] Figure 2 The utility model discloses a control principle schematic diagram of the UPS energy storage device;

[0022] Wherein: 1, UPS energy storage device shell, 2, energy storage battery, 21, battery shell, 22, battery cell unit, 3, sensor assembly, 31, stretch-oriented sensor, 311, fabric type stretch sensor, 312, elastic fabric, 32, flexible distributed temperature sensor, 33, flexible distributed pressure sensor, 4, signal acquisition processing module, 5, display module, 6, alarm module; DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to specific embodiments:

[0024] As shown in the figure, a UPS energy storage device with cell morphology monitoring function includes a UPS energy storage device housing 1, an energy storage battery 2, a sensor assembly 3, a signal acquisition and processing module 4, a display module 5, and an alarm module 6. The energy storage battery 2 and the signal acquisition and processing module 4 are both located inside the UPS energy storage device housing 1, while the display module 5 and the alarm module 6 are both located on the UPS energy storage device housing 1. The sensor assembly 3 is located inside the energy storage battery 2 and is electrically connected to the signal acquisition and processing module 4 located outside the energy storage battery 2. The display module 5 and the alarm module 6 are both electrically connected to the signal acquisition and processing module 4.

[0025] The sensor assembly 3 includes a tensile sensor 31, a flexible distributed temperature sensor 32, and a flexible distributed pressure sensor 33. The tensile sensor 31 is composed of an elastic fabric 312 and one to three fabric-type tensile sensors 311 distributed on the elastic fabric 312. The elastic fabric 312 is preferably a knitted fabric, interwoven with elastic fibers and high-temperature resistant non-elastic fibers. The elastic fibers can be selected from spandex, polyurethane fibers, and polyolefin fibers; the high-temperature resistant non-elastic fibers can be selected from aramid fibers, nylon fibers, and polytetrafluoroethylene fibers. The thickness of the elastic fabric 312 needs to be controlled within the range of 0.1 to 0.3 mm. The fabric-type tensile sensors 311 can be made of elastic yarn coated with a conductive coating, or they can be made by coating the elastic fabric 312 with a layer of conductive coating with a micro-crack structure. Furthermore, the length and width dimensions of the fabric-type tensile sensors 311 need to be controlled within the range of 1 to 5 cm. The flexible distributed temperature sensor 32 is selected with a temperature testing range of -20 to 300℃; the flexible distributed pressure sensor 33 is selected as a flexible thin-film sensor with a pressure testing range of 1 to 700 kPa.

[0026] In this embodiment, such as Figure 1As shown, the energy storage battery 2 includes a battery shell 21 and three cell units 22 arranged inside the battery shell 21; and on the surface of each of the three cell units 22, a stretch sensor 31, i.e. an elastic fabric 312, is pasted by a temperature-resistant double-sided adhesive, and four edges of the elastic fabric 312 are fixedly pasted on the surface of the cell unit 22 by the temperature-resistant double-sided adhesive, for monitoring the shape change of the overall or sub-regional surface of the cell unit 22 through the change of the fabric type stretch sensor 311 signal; a flexible distributed temperature sensor 32 and a flexible distributed pressure sensor 33 are arranged between two adjacent cell units 22 in sequence, for detecting the temperature and pressure change conditions inside the energy storage battery 2. As shown in Figure 2 As shown, the signal acquisition and processing module 4 is arranged on the battery shell 21; and the stretch sensor 31, the flexible distributed temperature sensor 32 and the flexible distributed pressure sensor 33 are electrically connected with the signal acquisition and processing module 4, for converting the shape change condition of the cell unit 22 at the real-time monitored region or point, the temperature and pressure change condition inside the energy storage battery 2 into electrical signals and transmitting the electrical signals to the signal acquisition and processing module 4, and processing and analyzing the electrical signals through the preset program in the signal acquisition and processing module 4; at the same time, the signal acquisition and processing module 4 is electrically connected with the display module 5 and the alarm module 6, for transmitting the processed signals to the display module 5 and the alarm module 6, and transmitting a warning signal to the alarm module 6 when an abnormal signal is detected, so that the alarm module 6 sends an alarm signal. In other embodiments, a plurality of cell units 22 can be arranged in the energy storage battery 2, and the surface of each cell unit 22 is pasted with a stretch sensor 31, and the flexible distributed temperature sensor 32 and the flexible distributed pressure sensor 33 are arranged between two adjacent cell units 22 in sequence, and the flexible distributed temperature sensor 32 and the flexible distributed pressure sensor 33 are arranged in parallel with the cell unit 22; the stretch sensor 31 can be completely wrapped on the overall surface of the cell unit 22, or can be pasted on a local region of the cell unit 22, as long as the shape change of the overall or sub-regional surface of the cell unit 22 can be monitored in real time through the signal change of the stretch sensor 31. In addition, in actual application, it is also possible that only one cell unit 22 is arranged in the energy storage battery 2; at this time, the flexible distributed temperature sensor 32 and the flexible distributed pressure sensor 33 can be arranged on the same side of the cell unit 22, or on both sides of the cell unit 22.

[0027] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the examples should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A UPS energy storage device with a battery cell morphology monitoring function, characterized in that, The UPS energy storage device comprises a sensor assembly (3), an energy storage battery (2), a signal acquisition and processing module (4) arranged in a UPS energy storage device shell (1), a display module (5) and an alarm module (6) arranged on the UPS energy storage device shell (1). The sensor assembly (3) is arranged inside the energy storage battery (2); the signal acquisition and processing module (4) is arranged outside the energy storage battery (2) and is electrically connected with the sensor assembly (3); the sensor assembly (3) comprises a stretch-oriented sensor (31), a flexible distributed temperature sensor (32) and a flexible distributed pressure sensor (33). The display module (5) and the alarm module (6) are electrically connected with the signal acquisition and processing module (4). The energy storage battery (2) comprises a battery shell (21) and a plurality of cell units (22) arranged inside the battery shell (21). The surface of each cell unit (22) is pasted with the stretch-oriented sensor (31). The flexible distributed temperature sensor (32) and the flexible distributed pressure sensor (33) are arranged between adjacent two cell units (22) in sequence; the signal acquisition and processing module (4) is arranged on the battery shell (21); the stretch-oriented sensor (31), the flexible distributed temperature sensor (32) and the flexible distributed pressure sensor (33) are electrically connected with the signal acquisition and processing module (4). The stretch-oriented sensor (31) is composed of an elastic fabric (312) and 1-3 fabric-type stretch sensors (311) distributed on the elastic fabric (312); the four edges of the elastic fabric (312) are fixedly pasted on the cell unit (22) by temperature-resistant double-sided adhesive. The elastic fabric (312) is interwoven by elastic fibers and high-temperature-resistant inelastic fibers; the thickness of the elastic fabric (312) is 0.1-0.3 mm. The fabric-type stretch sensor (311) is woven by elastic yarn coated with conductive paint or is prepared by coating the elastic fabric (312) with a layer of micro-crack structure conductive paint.

2. The UPS energy storage device with battery cell morphology monitoring function according to claim 1, characterized in that: The length and width of the fabric-type stretch sensor (311) are both 1-5 cm.

3. The UPS energy storage device with battery cell morphology monitoring function according to claim 1, characterized in that: The temperature test range of the flexible distributed temperature sensor (32) is -20-300℃. The pressure test range of the flexible distributed pressure sensor (33) is 1-700 kPa.

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