Battery device, battery pack device, energy storage device and energy storage system

Abstract

The utility model provides a battery device, a battery pack device, an energy storage device and an energy storage system, and the battery device comprises a first housing which is internally provided with a first accommodation cavity; the energy storage units are arranged on the first inner wall surface of the first accommodating cavity; at least one infrared temperature measurement unit and the other infrared temperature measurement unit are symmetrically arranged on the second inner wall surface of the first accommodating cavity, the first inner wall surface and the second inner wall surface are oppositely arranged, and the infrared temperature measurement units are used for detecting the temperature of the energy storage unit and / or the first busbar connected with the energy storage unit; the battery device transmits electric energy to external equipment through a cable; and a plurality of infrared temperature measurement units are arranged on the cable at intervals. Based on the mode, the reliability of the battery device can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection, in particular to a battery device, a battery pack device, an energy storage device and an energy storage system. BACKGROUND

[0002] With the development of the times, battery devices (such as lithium batteries and other modules with energy storage capability) have been widely used in energy storage stations or other types of energy storage systems. It is usually necessary to detect the temperature of the battery device during operation, maintenance and repair to ensure the safety of the battery device.

[0003] However, due to the structural characteristics of the existing battery device, it is difficult to accurately and effectively measure the components in the sealed first housing without contact, and it is difficult to obtain accurate temperature measurement results, so it is difficult to accurately determine the current condition of the battery device (such as whether it has sufficient safety), which further reduces the reliability of the battery device. CONTENT OF THE INVENTION

[0004] The technical problem solved by the present application is to provide a battery device, a battery pack device, an energy storage device and an energy storage system, which can improve the reliability of the battery device.

[0005] In a first aspect, the present application provides a battery device, comprising: a first housing, the first housing having a first receiving cavity; at least two energy storage units, the energy storage units being arranged on a first inner wall surface of the first receiving cavity; at least two infrared temperature measurement units, at least one infrared temperature measurement unit and another infrared temperature measurement unit being symmetrically arranged on a second inner wall surface of the first receiving cavity, the first inner wall surface and the second inner wall surface being oppositely arranged, the infrared temperature measurement units being used for temperature detection of the energy storage units and / or a first busbar connected to the energy storage units; the battery device transmitting electric energy to an external device through a cable; and a plurality of infrared temperature measurement units being arranged on the cable at intervals.

[0006] In the technical solution of the present application, at least two infrared temperature measurement units are arranged in the first receiving cavity of the first housing of the battery device, and at least one of the infrared temperature measurement units is symmetrically arranged with another infrared temperature measurement unit on the second inner wall surface, and the energy storage units are arranged on the first inner wall surface. The symmetrically arranged infrared temperature measurement units can make the temperature detection range as complete as possible to cover all the energy storage units in the first receiving cavity, so as to realize comprehensive temperature detection and reduce or eliminate the possibility of missed detection. The temperature detection signal of the infrared temperature measurement units arranged in the first receiving cavity of the battery device can be obtained to realize non-contact temperature detection of the battery device, improve the accuracy of temperature detection, improve the accuracy of the current condition of the battery device based on temperature detection, and improve the reliability of the battery device.

[0007] In some embodiments, all the energy storage units and / or the first bus bars are located within the total detection range of all the infrared temperature measurement units.

[0008] In the technical scheme of the embodiments of the present application, at least two infrared temperature measurement units are pre-set in the first accommodating cavity of the first shell of the battery device, and at least one of the infrared temperature measurement units is symmetrically arranged with another infrared temperature measurement unit on the second inner wall surface, and an energy storage unit is arranged on the first inner wall surface. Therefore, the symmetrically arranged infrared temperature measurement units can make the temperature detection range thereof collectively cover all the energy storage units in the first accommodating cavity, so that comprehensive temperature detection is realized, the possibility of missed detection is reduced or eliminated, and the accuracy of temperature detection is improved. Therefore, the accuracy of the current condition judgment of the battery device based on temperature detection is improved, and the reliability of the battery device is improved.

[0009] In some embodiments, all the energy storage units and / or the first bus bars are located within the detection range of any one of the infrared temperature measurement units.

[0010] In the technical scheme of the embodiments of the present application, at least two infrared temperature measurement units are pre-set in the first accommodating cavity of the first shell of the battery device, and at least one of the infrared temperature measurement units is symmetrically arranged with another infrared temperature measurement unit on the second inner wall surface, and an energy storage unit is arranged on the first inner wall surface. Therefore, the symmetrically arranged infrared temperature measurement units can make the temperature detection range thereof collectively cover all the energy storage units in the first accommodating cavity, so that comprehensive temperature detection is realized, the possibility of missed detection is reduced or eliminated, and the accuracy of temperature detection is improved. Therefore, the accuracy of the current condition judgment of the battery device based on temperature detection is improved, and the reliability of the battery device is improved.

[0011] In a second aspect, the present application provides a battery pack device, comprising: a second shell, the second shell having a second accommodating cavity; at least two battery devices as described above, the battery devices being arranged in the second accommodating cavity and being connected in series by corresponding cables; and at least two infrared temperature measurement units, at least one of the infrared temperature measurement units being symmetrically arranged with another infrared temperature measurement unit in the second accommodating cavity, the infrared temperature measurement units being used for temperature detection of the battery devices and / or the cables.

[0012] In the technical scheme of the embodiment of the application, at least two infrared temperature measuring units are preset in the second accommodating cavity of the second shell of the battery pack device, and at least one of the infrared temperature measuring units is symmetrically arranged with another infrared temperature measuring unit in the second accommodating cavity. The symmetrically arranged infrared temperature measuring units can make the range of temperature detection as complete as possible to cover all the battery devices and / or cables in the second accommodating cavity, realize comprehensive temperature detection, reduce or eliminate the possibility of missing detection, and realize non-contact temperature detection of the battery devices by acquiring the signal of temperature detection of the infrared temperature measuring units arranged in the second accommodating cavity of the battery pack device, improve the accuracy of temperature detection, and thus improve the accuracy of the current condition judgment of the battery pack device based on temperature detection, and further improve the reliability of the battery pack device.

[0013] In some embodiments, the electrodes of the battery devices are arranged on the side of the battery devices facing the at least one infrared temperature measuring unit, and each electrode is connected by a corresponding cable.

[0014] In the technical scheme of the embodiment of the application, at least two infrared temperature measuring units are preset in the second accommodating cavity of the second shell of the battery pack device, and at least one of the infrared temperature measuring units is symmetrically arranged with another infrared temperature measuring unit in the second accommodating cavity. The symmetrically arranged infrared temperature measuring units can make the range of temperature detection as complete as possible to cover all the battery devices and / or cables in the second accommodating cavity, realize comprehensive temperature detection, reduce or eliminate the possibility of missing detection, and realize non-contact temperature detection of the battery devices by acquiring the signal of temperature detection of the infrared temperature measuring units arranged in the second accommodating cavity of the battery pack device, improve the accuracy of temperature detection, and thus improve the accuracy of the current condition judgment of the battery pack device based on temperature detection, and further improve the reliability of the battery pack device.

[0015] In some embodiments, the battery pack device further comprises a master control box connected to the corresponding battery devices by corresponding cables, and / or a second busbar connected to the corresponding battery devices or the master control box by corresponding cables, and / or at least one connecting piece connected to at least two cables. The infrared temperature measuring unit is detachably connected to the second shell, and is used for temperature detection of the battery devices, and / or the cables, and / or the master control box, and / or the second busbar, and / or the connecting piece.

[0016] In the technical scheme of the embodiment of the application, at least two infrared temperature measuring units are preset in the second accommodating cavity of the second shell of the battery pack device, and at least one of the infrared temperature measuring units is symmetrically arranged with another infrared temperature measuring unit in the second accommodating cavity, so that the symmetrically arranged infrared temperature measuring units can make the temperature detection range thereof collectively cover all the battery devices and / or cables and / or master control boxes and / or second busbars and / or connecting pieces in the second accommodating cavity as completely as possible, comprehensive temperature detection is realized, the possibility of missing detection is reduced or eliminated, and the temperature detection of the battery devices is realized in a non-contact manner by acquiring the temperature detection signal of the infrared temperature measuring unit arranged in the second accommodating cavity of the battery pack device, the accuracy of temperature detection is improved, the accuracy of judging the current state of the battery pack device based on temperature detection is improved, and the reliability of the battery pack device is improved.

[0017] In a third aspect, the application provides a power storage device, which comprises the battery device or the battery pack device.

[0018] In the technical scheme of the embodiment of the application, the plurality of infrared temperature measuring units are arranged on the cable, the plurality of regions on the cable where the infrared temperature measuring units are arranged are detected based on the infrared temperature measuring units, the possibility of timely detecting temperature abnormal conditions on the cable through infrared temperature measurement is improved, timely maintenance is improved to reduce the possibility of cable loss, and the reliability of the power storage device is improved.

[0019] In some embodiments, one infrared temperature measuring unit is arranged at each end of the straight section of the cable, and the detection directions of the infrared temperature measuring units at the two ends of the straight section are both directed towards the straight section.

[0020] In the technical scheme of the embodiment of the application, the two infrared temperature measuring units for infrared temperature measurement towards the straight section of the cable are arranged at the two ends of the straight section of the cable, the possibility that the total detection range of the two infrared temperature measuring units arranged on the straight section completely covers the straight section is improved, or the area of the straight section that can be covered by the total detection range of the two infrared temperature measuring units arranged on the straight section is improved, the possibility of timely detecting temperature abnormal conditions on the cable through infrared temperature measurement is improved, timely maintenance is improved to reduce the possibility of cable loss, and the reliability of the power storage device is improved.

[0021] In some embodiments, two infrared temperature measuring units are arranged at the bending part of the cable, the detection directions of the two infrared temperature measuring units at the bending part are respectively arranged towards the corresponding cable extension directions, and the detection directions of the two infrared temperature measuring units at the bending part are different.

[0022] In the technical scheme of the embodiment of the present application, by arranging two infrared temperature measuring units at the bending position of the cable, the two infrared temperature measuring units are arranged in directions respectively corresponding to the extending directions of the two straight sections connected by the bending position, so that the total detection range of the two infrared temperature measuring units arranged at the bending position can be more likely to cover the two straight sections connected by the bending position, or the area covered by the total detection range of the two infrared temperature measuring units arranged at the bending position can be increased, so that the possibility of timely detecting temperature abnormality on the cable through infrared temperature measurement can be improved, and the possibility of timely maintenance to reduce the loss of the cable can be improved, and the reliability of the energy storage device is improved.

[0023] In some embodiments, the energy storage device further comprises a fire-fighting pipeline and at least one first fire-fighting module, the fire-fighting pipeline is used for conveying a fire-fighting medium, and the first fire-fighting module is used for fire-fighting treatment of the battery device based on the fire-fighting medium; the fire-fighting pipeline is connected to the first fire-fighting module through a corresponding on-off valve.

[0024] In the technical scheme of the embodiment of the present application, by arranging the fire-fighting channel and the first fire-fighting module, the battery device in need of fire-fighting treatment can be timely treated by the first fire-fighting module, so as to reduce the loss of the battery device and improve the reliability of the energy storage device.

[0025] In some embodiments, the fire-fighting pipeline is located in a cable trench where the cable is located, and a plurality of second fire-fighting modules are arranged on the fire-fighting pipeline at intervals, and the second fire-fighting modules are used for fire-fighting treatment of the cable based on the fire-fighting medium.

[0026] In the technical scheme of the embodiment of the present application, the fire-fighting pipeline can be arranged in the cable trench where the cable is located, and when the temperature of the cable is too high due to failure or other reasons, it can be determined that the cable needs to be fire-fighting treated, and at this time, the second fire-fighting modules on the fire-fighting pipeline can be used to deliver the fire-fighting medium to the cable to reduce the temperature of the cable, reduce the loss of the cable, and improve the reliability of the energy storage device.

[0027] In some embodiments, a plurality of temperature sensing modules are arranged on the fire-fighting pipeline at intervals, and the temperature sensing modules are used for detecting the temperature of the cable.

[0028] In the technical scheme of the embodiment of the present application, the fire-fighting pipeline can be arranged in the cable trench where the cable is located, and a plurality of temperature sensing modules are arranged on the fire-fighting pipeline at intervals, and the temperature of the cable is detected by the temperature sensing modules, and when the temperature of the cable is too high due to failure or other reasons, it can be determined that the cable needs to be fire-fighting treated, and at this time, the second fire-fighting modules on the fire-fighting pipeline can be used to deliver the fire-fighting medium to the cable to reduce the temperature of the cable, reduce the loss of the cable, and improve the reliability of the energy storage device.

[0029] In a fourth aspect, the present application provides an energy storage system, comprising the battery device, or the battery pack device, or the energy storage device.

[0030] It can be understood that the beneficial effects of the second aspect, the third aspect and the fourth aspect can be referred to the related description in the first aspect, which will not be repeated here.

[0031] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clear, it can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0033] Figure 1 Structure diagram of one or more embodiments of the battery device provided by the present application;

[0034] Figure 2 Structure diagram of one or more embodiments of the battery manager provided by the present application;

[0035] Figure 3 Structure diagram of one or more embodiments of the battery manager, the current conversion controller and the energy manager provided by the present application;

[0036] Figure 4 Structure diagram of one or more embodiments of the battery pack device provided by the present application;

[0037] Figure 5 Structure diagram of one or more embodiments of the energy storage device provided by the present application;

[0038] Figure 6 Structure diagram of one or more embodiments of the cable and infrared temperature measurement unit provided by the present application;

[0039] Figure 7 Structure diagram of one or more embodiments of the cable and infrared temperature measurement unit provided by the present application;

[0040] Figure 8 Structure diagram of one or more embodiments of the energy storage system provided by the present application.

[0041] Reference numerals: 11, first housing; 12, energy storage unit; 13, infrared temperature measurement unit; 21, battery manager; 22, current conversion controller; 23, energy manager; 24, cable; 31, battery device; 32, battery pack device; 41, energy storage device; 51, energy storage system. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the present specification and claims and the aforementioned description of the drawings, the terms "comprising" and "having" and any variations thereof are intended to cover not exclusively inclusive.

[0044] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0045] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0046] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0047] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0048] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0049] With the development of the times, battery devices (such as lithium batteries and other modules with energy storage capability) have been widely used in energy storage stations or other types of energy storage systems, and it is usually necessary to detect the temperature of the battery device during operation and maintenance and repair to ensure the safety of the battery device.

[0050] However, due to the structural characteristics of the existing battery device, it is not possible to accurately and effectively measure the components in the sealed first shell without contact, and it is usually not possible to obtain a more accurate temperature measurement result. If the sealed first shell is disassembled for more accurate and effective measurement, the waterproof performance of the battery device or other performance due to the sealed first shell may be damaged, so the conventional technology cannot currently accurately determine the current condition of the battery device (such as whether it has sufficient safety) without damaging the battery device, thereby resulting in poor reliability of the battery device.

[0051] Based on the above considerations, the present application provides a battery device, a battery pack device, an energy storage device and an energy storage system. The battery device comprises: a first shell, the first shell having a first accommodating cavity therein; at least two energy storage units, the energy storage units being arranged on a first inner wall surface of the first accommodating cavity; and at least two infrared temperature measurement units, at least one infrared temperature measurement unit and another infrared temperature measurement unit being symmetrically arranged on a second inner wall surface of the first accommodating cavity, the first inner wall surface and the second inner wall surface being oppositely arranged, and the infrared temperature measurement units being used for temperature detection of the energy storage units and / or a first busbar connected with the energy storage units. Based on the above manner, the reliability of the battery device can be improved.

[0052] Please refer to Figure 1 , Figure 1 The structural schematic diagram of one or more embodiments of the battery device provided by the present application is shown in Figure 1 The battery device comprises a first shell 11, at least two energy storage units 12 and at least two infrared temperature measurement units 13.

[0053] The first shell 11 has a first accommodating cavity therein.

[0054] The energy storage units 12 are arranged on a first inner wall surface of the first accommodating cavity.

[0055] At least one infrared temperature measuring unit 13 and another infrared temperature measuring unit 13 are symmetrically arranged on the second inner wall surface of the first receiving cavity, with the first inner wall surface and the second inner wall surface facing each other. The infrared temperature measuring unit 13 is used to detect the temperature of the energy storage unit 12 and / or the first busbar connected to the energy storage unit 12.

[0056] Specifically, the battery device can transmit electrical energy to external devices via a cable, on which multiple infrared temperature measuring units 13 are spaced apart. This cable can be a DC cable or other types of cable, which are not limited here. Power can be supplied to external devices outside the energy storage system containing the battery device through this cable, based on the electrical energy stored in the battery device.

[0057] The first housing 11 can be either a sealed first housing or a non-sealed first housing, depending on the actual needs, and is not limited here.

[0058] The battery device can specifically refer to the prefabricated compartment of the energy storage battery system, and the energy storage unit 12 can specifically refer to the energy storage battery or cell. The battery device and the energy storage unit 12 can also have other types of subordinate relationships, which are not limited here.

[0059] by Figure 1 For example, Figure 1 This is a side cross-sectional view of the battery device. The first inner wall surface can be the lower inner wall surface corresponding to the first receiving cavity, and the second inner wall surface can be the upper inner wall surface corresponding to the first receiving cavity. Among the two symmetrically arranged infrared temperature measuring units 13, one infrared temperature measuring unit 13 can be located at the upper left with the detection direction facing the lower right, and the other infrared temperature measuring unit 13 can be located at the upper right with the detection direction facing the lower left. By reasonably setting the detection direction of the symmetrically arranged infrared temperature measuring units 13, the combined detection range of the two symmetrically arranged infrared temperature measuring units 13, that is, the total detection range, can cover all the energy storage units 12 located below them as much as possible. This increases the possibility that the infrared temperature measuring unit 13 set in the first receiving cavity of the first housing 11 can detect the abnormal temperature condition when any energy storage unit 12 experiences an abnormal temperature condition. In other words, it can accurately and effectively detect the internal temperature of the battery device without contact or damaging the structure of the first housing 11 of the battery device, by receiving the temperature detection signal emitted by the infrared temperature measuring unit 13. Furthermore, it can also improve the timely handling of the battery device with abnormal temperature, thereby reducing the possibility of device damage.

[0060] In summary, this improves the reliability and accuracy of temperature detection for battery devices.

[0061] In addition, a thermistor can also be arranged in the battery device, and the thermistor can be a negative temperature coefficient (NTC) thermistor or other types of thermistor, which is not limited.

[0062] For example, the energy storage units 12 in the battery device can be sequentially connected to external devices outside the energy storage device or energy storage system through corresponding master control boxes (including switches and / or fuses), cables and converters (including power modules such as IGBT power components) for power supply. The spaces where the master control boxes, cables and converters are arranged can also be respectively provided with corresponding infrared temperature measurement units 13 for non-contact temperature detection.

[0063] In an example, the energy storage units 12 in the battery device can be detected based on the infrared temperature measurement units 13 and the thermistors.

[0064] In response to detecting that there is no energy storage unit 12 in the battery device with a temperature greater than the preset temperature threshold based on the thermistor, the step of detecting the temperature of the energy storage units 12 in the battery device based on the infrared temperature measurement units 13 and the thermistors and the subsequent steps are returned to be executed.

[0065] In response to detecting that there is an energy storage unit 12 in the battery device with a temperature greater than the preset temperature threshold based on the thermistor, and detecting that there is an energy storage unit 12 in the battery device with a temperature greater than the preset temperature threshold based on the infrared temperature measurement unit 13, an over-temperature alarm prompt of the battery is output, and the connection between the battery device and other devices is disconnected, or the connection between the energy storage device where the battery device is located and other devices is disconnected.

[0066] In response to detecting that there is an energy storage unit 12 in the battery device with a temperature greater than the preset temperature threshold based on the thermistor, and detecting that there is no energy storage unit 12 in the battery device with a temperature greater than the preset temperature threshold based on the infrared temperature measurement unit 13, an alarm prompt that the infrared temperature measurement unit 13 is working abnormally is output, and a suspected over-temperature alarm prompt of the battery is output to notify relevant personnel to perform corresponding maintenance and repair for further confirmation.

[0067] In another example, in the energy storage system where the energy storage device containing the battery device is located, every interval the energy storage system operates for a preset length of time, the infrared temperature measurement units 13 arranged at the spaces where the battery device, the master control box, the cable and the converter are located are triggered to perform corresponding temperature detection.

[0068] In response to any one of the infrared temperature measurement units 13 detecting an abnormal temperature, an alarm prompt corresponding to the corresponding device is output to notify relevant personnel to perform corresponding maintenance and repair.

[0069] In response to the fact that all the infrared temperature measurement units 13 detect normal temperature, a normal temperature prompt is output.

[0070] Based on the above manner, accurate and effective non-contact temperature detection can be performed on the battery device, or the energy storage device in which the battery device is located, or the energy storage system in which the energy storage device containing the battery device is located, thereby improving the reliability of temperature detection on the battery device, or the energy storage device, or the energy storage system.

[0071] In yet another example, please refer to Figure 2 and Figure 3 , Figure 2 a structural schematic diagram of one or more embodiments of the battery manager provided in the present application, Figure 3 a structural schematic diagram of one or more embodiments of the battery manager, the current conversion controller, and the energy manager provided in the present application.

[0072] As Figure 2 indicated, each battery device can be configured with a corresponding battery manager 21, and the battery manager 21 can be used to acquire signals of temperature detection acquired by all the infrared temperature measurement units 13 arranged in the battery device, to perform corresponding analysis and processing.

[0073] As Figure 3 indicated, an energy manager 23 is further configured in the energy storage device or the energy storage system in which the battery device is located, and each battery device can be further configured with a current conversion controller 22, the energy manager 23 can be connected to each battery manager 21 and each current conversion controller 22 respectively, and the current conversion controller 22 can be connected to the battery manager 21.

[0074] The energy manager 23 can perform corresponding regulation and control on each battery manager 21 and each current conversion controller 22 according to the overall condition of the energy storage system, to ensure the normal operation of the entire energy storage system.

[0075] The current conversion controller 22 can perform corresponding control on the current conversion processing performed by the current converter corresponding to the battery device according to the regulation and control of the energy manager 23 and the battery manager 21.

[0076] In the application, at least two infrared temperature measuring units are preset in the first accommodating cavity of the first shell of the battery device, and at least one of the infrared temperature measuring units is symmetrically arranged with another infrared temperature measuring unit on the second inner wall surface, and the energy storage unit is arranged on the first inner wall surface, so that the symmetrically arranged infrared temperature measuring units can make the temperature detection range set, and can as completely as possible cover all the energy storage units in the first accommodating cavity, realize more comprehensive temperature detection, reduce or eliminate the possibility of missing detection, and realize non-contact temperature detection of the battery device by acquiring the temperature detection signal of the infrared temperature measuring unit arranged in the first accommodating cavity of the battery device, improve the accuracy of temperature detection, thereby improving the accuracy of the current condition judgment of the battery device based on temperature detection, and further improving the reliability of the battery device.

[0077] In some embodiments, all the energy storage units 12 and / or the first bus bars are located within the total detection range of all the infrared temperature measuring units 13.

[0078] Specifically, by reasonably arranging the detection direction and number of each infrared temperature measuring unit 13, the total detection range of all the infrared temperature measuring units 13 can cover all the energy storage units 12 in the battery device, so that the possibility of timely detection of any energy storage unit 12 with temperature abnormality is improved, thereby improving the accuracy of the current condition judgment of the battery device based on temperature detection, and further improving the reliability of the battery device.

[0079] In the application, at least two infrared temperature measuring units are preset in the first accommodating cavity of the first shell of the battery device, and at least one of the infrared temperature measuring units is symmetrically arranged with another infrared temperature measuring unit on the second inner wall surface, and the energy storage unit is arranged on the first inner wall surface, so that the symmetrically arranged infrared temperature measuring units can make the temperature detection range set, and can as completely as possible cover all the energy storage units in the first accommodating cavity, realize more comprehensive temperature detection, reduce or eliminate the possibility of missing detection, and realize non-contact temperature detection of the battery device by acquiring the temperature detection signal of the infrared temperature measuring unit arranged in the first accommodating cavity of the battery device, improve the accuracy of temperature detection, thereby improving the accuracy of the current condition judgment of the battery device based on temperature detection, and further improving the reliability of the battery device.

[0080] Optionally, all the energy storage units 12 and / or the first bus bars are located within the detection range of any infrared temperature measuring unit 13.

[0081] Specifically, the energy storage units 12 can be redundantly configured with each other. That is, even when only one infrared temperature measuring unit 13 is operating normally, the temperature of any energy storage unit 12 in the battery device can be detected in a timely and effective manner based on the operating infrared temperature measuring unit 13. This improves the accuracy of judging the current status of the battery device based on temperature detection, thereby improving the reliability of the battery device.

[0082] In this application, at least two infrared temperature measuring units are pre-installed in the first receiving cavity of the first housing of the battery device, and at least one infrared temperature measuring unit is symmetrically arranged with the other infrared temperature measuring unit on the second inner wall surface. An energy storage unit is arranged on the first inner wall surface. This allows the symmetrically arranged infrared temperature measuring units to ensure that the detection range of any one of the infrared temperature measuring units can completely cover all the energy storage units in the first receiving cavity, achieving more comprehensive temperature detection, reducing or eliminating the possibility of missed detection. Furthermore, by acquiring the temperature detection signal from the infrared temperature measuring units arranged in the first receiving cavity of the battery device, non-contact temperature detection of the battery device can be achieved, improving the accuracy of temperature detection. This, in turn, improves the accuracy of judging the current status of the battery device based on temperature detection, thereby improving the reliability of the battery device.

[0083] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of one or more embodiments of the battery pack device provided in this application, such as... Figure 4 As shown, the battery pack assembly 32 includes a battery assembly 31 and a second housing ( Figure 4 (not shown) and at least two infrared temperature measurement units 13 ( Figure 4 (Not shown).

[0084] The second housing has a second receiving cavity.

[0085] The battery device 31 is located in the second receiving cavity, and each battery device 31 is connected in series via a corresponding cable 24.

[0086] At least one infrared temperature measuring unit 13 and another infrared temperature measuring unit 13 are symmetrically arranged in the second receiving cavity. The infrared temperature measuring unit 13 is used to detect the temperature of the battery device 31 and / or the cable 24.

[0087] Specifically, the battery device 31 or battery pack device 32 can transmit electrical energy to external devices via a cable, on which multiple infrared temperature measuring units 13 are spaced apart. This cable can be a DC cable or other types of cable, which are not limited here. Power can be supplied to external devices outside the energy storage system containing the battery device through this cable, based on the electrical energy stored in the battery device.

[0088] The electrodes of the battery devices 31 can be connected by corresponding cables to make the battery devices 31 serially connected to each other. The cables connecting the electrodes can be arranged in the total detection range of the symmetrically arranged infrared temperature measurement units 13, or arranged in the detection range of at least one of the symmetrically arranged infrared temperature measurement units 13 respectively.

[0089] In an example, the battery pack device can be a battery prefabricated cabin, the second shell can be a container, and the battery devices 31 can be battery packs.

[0090] Based on the above manner, the cables and / or the battery devices 31 can be temperature detected by the infrared temperature measurement units 13, so as to timely monitor the temperature on the cables and / or the battery devices 31, reduce the damage caused by high temperature, and improve the safety.

[0091] In the present application, at least two infrared temperature measurement units are preset in the second accommodating cavity of the second shell of the battery pack device, and at least one of the infrared temperature measurement units is symmetrically arranged with another infrared temperature measurement unit in the second accommodating cavity. Therefore, the symmetrically arranged infrared temperature measurement units can make the temperature detection range thereof combined, and can cover all the battery devices and / or cables in the second accommodating cavity as completely as possible, so as to realize more comprehensive temperature detection and reduce or eliminate the possibility of missing detection. In addition, the temperature detection of the battery devices can be realized in a non-contact manner by acquiring the temperature detection signal of the infrared temperature measurement unit arranged in the second accommodating cavity of the battery pack device, so as to improve the accuracy of temperature detection, thereby improving the accuracy of the current condition judgment of the battery pack device based on temperature detection, and further improving the reliability of the battery pack device.

[0092] In some embodiments, the electrodes of the battery devices 31 are arranged on the side of the battery devices 31 facing at least one infrared temperature measurement unit 13, and the electrodes are connected by corresponding cables 24.

[0093] Specifically, the second shell can have a side surface provided with an openable and closable door, the electrodes can be arranged on the side of the battery devices 31 facing the door, and the infrared temperature measurement units 13 can be arranged on the door or other inner walls of the second shell capable of detecting the temperature of the electrodes. Here, no limitation is made.

[0094] The cables can also be arranged at a position between the battery devices 31 and the door, so as to facilitate the maintenance personnel to perform maintenance.

[0095] In the application, at least two infrared temperature measuring units are preset in the second accommodating cavity of the second shell of the battery pack device, at least one of the infrared temperature measuring units is symmetrically arranged with another infrared temperature measuring unit in the second accommodating cavity, and the electrodes of each battery device are arranged on the side of the battery device facing at least one infrared temperature measuring unit. Therefore, the symmetrically arranged infrared temperature measuring units can make the temperature detection range complete as much as possible to cover all the battery devices and / or cables in the second accommodating cavity, realize more comprehensive temperature detection, reduce or eliminate the possibility of missed detection, and realize non-contact temperature detection of the battery device by acquiring the temperature detection signal of the infrared temperature measuring unit arranged in the second accommodating cavity of the battery pack device, improve the accuracy of temperature detection, thereby improving the accuracy of the current condition judgment of the battery pack device based on temperature detection, and further improving the reliability of the battery pack device.

[0096] In some embodiments, the battery pack device 32 further comprises a master control box, and / or a second busbar, and / or at least one connecting piece.

[0097] The master control box is connected to the corresponding battery device 31 through the corresponding cable 24.

[0098] The second busbar is connected to the corresponding battery device 31 or master control box through the corresponding cable 24.

[0099] The connecting piece is connected to at least two cables 24.

[0100] Among them, the infrared temperature measuring unit 13 is detachably connected with the second shell, and the infrared temperature measuring unit 13 is used for temperature detection of the battery device 31, and / or the cable 24, and / or the master control box, and / or the second busbar, and / or the connecting piece.

[0101] Specifically, the infrared temperature measuring unit 13 can be used for corresponding temperature detection of the cable between any two components mentioned above, or any component.

[0102] In the present application, at least two infrared temperature measurement units are preset in the second accommodating cavity of the second shell of the battery pack device, and at least one of the infrared temperature measurement units is symmetrically arranged with another infrared temperature measurement unit in the second accommodating cavity, so that the symmetrically arranged infrared temperature measurement units can make the temperature detection range complete as much as possible to cover all the battery devices and / or cables and / or master control boxes and / or second busbars and / or connecting pieces in the second accommodating cavity, realize more comprehensive temperature detection, reduce or eliminate the possibility of missed detection, and realize non-contact temperature detection of the battery devices by acquiring the temperature detection signal of the infrared temperature measurement unit arranged in the second accommodating cavity of the battery pack device, improve the accuracy of temperature detection, thereby improving the accuracy of the current condition judgment of the battery pack device based on temperature detection, and further improving the reliability of the battery pack device.

[0103] Please refer to Figure 5 , Figure 5 The structural schematic diagram of one or more embodiments of the energy storage device provided in the present application is shown in Figure 5 The energy storage device 41 includes a battery device 31 or a battery pack device 32, which transmits electrical energy to external equipment through a cable. The battery device 31 can be any of the battery devices described in the foregoing embodiments, and the battery pack device 32 can be any of the battery pack devices described in the foregoing embodiments, which will not be described here.

[0104] A plurality of infrared temperature measurement units 13 are arranged on the cable at intervals Figure 5 (not shown).

[0105] Specifically, the cable can be a direct current cable or other types of cables, which are not limited here.

[0106] Based on the electrical energy stored by the battery device, the external equipment outside the energy storage system where the battery device is located can be powered through the cable.

[0107] In the present application, by arranging a plurality of infrared temperature measurement units on the cable, the corresponding temperature detection can be performed on the plurality of regions on the cable where the infrared temperature measurement units are arranged, so as to improve the possibility of timely detecting temperature abnormality on the cable through infrared temperature measurement, thereby improving the possibility of timely maintenance to reduce the possibility of cable loss, and improving the reliability of the energy storage device.

[0108] In some embodiments, please refer to Figure 6 , Figure 6 One of the structural schematic diagrams of one or more embodiments of the cable and the infrared temperature measurement unit provided in the present application is shown in Figure 6As shown, two ends of the straight section of the cable 24 are respectively provided with an infrared temperature measurement unit 13, and the detection directions of the infrared temperature measurement units 13 located at the two ends of the straight section are both towards the straight section.

[0109] Specifically, for example, the detection direction of the infrared temperature measurement unit 13 on the left side is deviated or towards the first direction D1 for temperature detection, and the detection direction of the infrared temperature measurement unit 13 on the right side is deviated or towards the opposite direction of the first direction D1 for temperature detection, so that the detection directions of the infrared temperature measurement units 13 located at the two ends of the straight section are both towards the straight section, so as to realize temperature detection coverage of the area of the straight section with as few infrared temperature measurement units 13 as possible, thereby improving the reliability of the energy storage device. Figure 6

[0110] In this application, by respectively arranging infrared temperature measurement units for infrared temperature measurement towards the straight section at two ends of the straight section of the cable, the possibility that the total detection range of the two infrared temperature measurement units arranged on the straight section completely covers the straight section, or the area of the straight section that can be covered by the total detection range of the two infrared temperature measurement units arranged on the straight section, can be improved, so as to improve the possibility of timely detecting temperature abnormal conditions on the cable through infrared temperature measurement, thereby improving the possibility of timely maintenance to reduce cable loss, and improving the reliability of the energy storage device.

[0111] In some embodiments, referring to Figure 7 , Figure 7 a structural schematic diagram of one or more embodiments of the cable and the infrared temperature measurement unit provided in this application, as shown in Figure 7 , two infrared temperature measurement units 13 are arranged at the bending portion of the cable 24, the detection directions of the two infrared temperature measurement units 13 located at the bending portion are respectively arranged towards the extension directions of the corresponding cable 24, and the detection directions of the two infrared temperature measurement units 13 located at the bending portion are different.

[0112] Specifically, for example, the detection direction of the infrared temperature measurement unit 13 on the right side is deviated or towards the first direction D1 for temperature detection, and the detection direction of the infrared temperature measurement unit 13 on the left side is deviated or towards the second direction D2 for temperature detection, so that the detection directions of the two infrared temperature measurement units 13 located at the bending portion are respectively arranged towards the extension directions of the corresponding cable 24, so as to realize temperature detection coverage of the area of the straight section connected to the bending portion with as few infrared temperature measurement units 13 as possible, thereby improving the reliability of the energy storage device. Figure 7

[0113] ​​In the present application, by arranging two infrared temperature measurement units at the bending position of the cable, the detection directions of which are respectively arranged towards the corresponding cable extension directions, the possibility that the total detection range of the two infrared temperature measurement units arranged at the bending position completely covers the two straight line segments connected by the bending position, or the area of the two straight line segments connected by the bending position that can be covered by the total detection range of the two infrared temperature measurement units arranged at the bending position, can be improved, so as to improve the possibility of timely detecting temperature abnormality on the cable through infrared temperature measurement, and further improve the possibility of timely maintenance to reduce the possibility of cable loss, thereby improving the reliability of the energy storage device.

[0114] Optionally, the energy storage device 41 further comprises a fire-fighting pipeline and at least one first fire-fighting module, the fire-fighting pipeline is used for conveying fire-fighting medium, and the first fire-fighting module is used for fire-fighting treatment of the battery device 31 based on the fire-fighting medium.

[0115] The fire-fighting pipeline is connected with the first fire-fighting module through a corresponding switch valve.

[0116] In the present application, by arranging the fire-fighting channel and the first fire-fighting module, the battery device that needs to be fire-fighting treated can be timely fire-fighting treated based on the first fire-fighting module, so as to reduce the loss of the battery device, and improve the reliability of the energy storage device.

[0117] Further, the fire-fighting pipeline is located in the cable trench where the cable 24 is located, and a plurality of second fire-fighting modules are arranged on the fire-fighting pipeline at intervals, and the second fire-fighting modules are used for fire-fighting treatment of the cable 24 based on the fire-fighting medium.

[0118] Specifically, in the conventional technology, the cable trench is only used for storing the cable 24, and the electrical energy stored in the battery device 31 can be transmitted to the outside of the energy storage system where the energy storage device 41 is located through the cable 24, so as to supply power to external equipment, and in the technical solution of the present application, the fire-fighting pipeline mentioned is also located in the cable trench, and a plurality of second fire-fighting modules (such as nozzles) capable of outputting (such as spraying) fire-fighting medium to the cable 24 are arranged on the fire-fighting pipeline.

[0119] The second fire-fighting module can output fire-fighting medium to the cable 24 to perform fire-fighting treatment in a case of fire or other conditions that need to be fire-fighting treated, so as to reduce the loss of the cable 24, improve the possibility that the intact cable 24 maintains normal operation, and further improve the possibility that the energy storage system operates normally, thereby improving the reliability of the energy storage device 41.

[0120] In the present application, the fire-fighting pipeline can be arranged in the cable trench where the cable is located. When the temperature of the cable is too high due to failure or other reasons, it can be determined that the cable needs to be treated by fire fighting. At this time, the second fire-fighting module on the fire-fighting pipeline can be used to deliver fire-fighting medium to the cable to reduce the temperature of the cable, reduce the loss of the cable, and improve the reliability of the energy storage device.

[0121] Further, a plurality of temperature sensing modules are arranged on the fire-fighting pipeline at intervals, and the temperature sensing modules are used to detect the temperature of the cable 24.

[0122] Specifically, the temperature sensing module can specifically include an infrared temperature measurement unit 13. A plurality of infrared temperature measurement units 13 on the fire-fighting pipeline can be used to determine the section of the cable 24 that needs to be treated by fire fighting, to control the second fire-fighting module on the fire-fighting pipeline to treat the section of the cable 24 that needs to be treated by fire fighting, to treat the cable 24 accordingly, to reduce the loss of the cable 24, and to improve the reliability of the energy storage device 41.

[0123] In the present application, the fire-fighting pipeline can be arranged in the cable trench where the cable is located. When the temperature of the cable is too high due to failure or other reasons, it can be determined that the cable needs to be treated by fire fighting. At this time, the second fire-fighting module on the fire-fighting pipeline can be used to deliver fire-fighting medium to the cable to reduce the temperature of the cable, reduce the loss of the cable, and improve the reliability of the energy storage device.

[0124] Please refer to Figure 8 , Figure 8 The structural schematic diagram of one or more embodiments of the energy storage system provided in the present application is shown in Figure 8 The energy storage system 51 includes a battery device 31 or a battery pack device 32 or an energy storage device 41. The battery device 31 can be any of the battery devices described in the foregoing embodiments, and the energy storage device 41 can be any of the energy storage devices described in the foregoing embodiments, which will not be described here.

[0125] In the application, at least two infrared temperature measuring units are preset in the first accommodating cavity of the first shell of the battery device, and at least one of the infrared temperature measuring units is symmetrically arranged with another infrared temperature measuring unit on the second inner wall surface, and an energy storage unit is arranged on the first inner wall surface, so that the symmetrically arranged infrared temperature measuring units can make the temperature detection range complete as much as possible to cover all the energy storage units in the first accommodating cavity, realize more comprehensive temperature detection, reduce or eliminate the possibility of missed detection, and realize non-contact temperature detection of the battery device by acquiring the temperature detection signal of the infrared temperature measuring unit arranged in the first accommodating cavity of the battery device, improve the accuracy of temperature detection, thereby improving the accuracy of the current condition judgment of the battery device based on temperature detection, and further improving the reliability of the battery device.

[0126] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application, and they should be covered in the scope of the claims and the specification of the application. Especially, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized by, The battery device comprises: a first shell having a first accommodating cavity inside; at least two energy storage units arranged on a first inner wall surface of the first accommodating cavity; at least two infrared temperature measuring units, at least one of which is symmetrically arranged with another one on a second inner wall surface of the first accommodating cavity, the first inner wall surface and the second inner wall surface being oppositely arranged, the infrared temperature measuring units being used for temperature detection of the energy storage units and / or a first busbar connected with the energy storage units; wherein the battery device is used for power transmission to external equipment through a cable; a plurality of infrared temperature measuring units are arranged on the cable at intervals.

2. The battery device according to claim 1, characterized by All the energy storage units and / or the first busbar are located within the total detection range of all the infrared temperature measuring units.

3. The battery device of claim 2, wherein All the energy storage units and / or the first busbar are located within the detection range of any one of the infrared temperature measuring units.

4. A battery pack apparatus characterized by comprising: The battery device comprises: a second shell having a second accommodating cavity inside; at least two battery devices according to any one of claims 1 to 3, the battery devices being arranged in the second accommodating cavity, and each of the battery devices being connected in series through a corresponding cable; at least two infrared temperature measuring units, at least one of which is symmetrically arranged with another one in the second accommodating cavity, the infrared temperature measuring units being used for temperature detection of the battery devices and / or the cables.

5. The battery pack apparatus according to claim 4, wherein Each electrode of each of the battery devices is arranged on a side of the battery device facing at least one of the infrared temperature measuring units, and each of the electrodes is connected through a corresponding cable.

6. The battery pack apparatus according to claim 4 or 5, wherein The battery device further comprises: a main control box connected with each of the battery devices through a corresponding cable; and / or, a second busbar connected with each of the battery devices or the main control box through a corresponding cable; and / or, at least one connecting piece connected with at least two of the cables; wherein the infrared temperature measuring units are detachably connected with the second shell, and the infrared temperature measuring units are used for temperature detection of the battery devices, and / or the cables, and / or the main control box, and / or the second busbar, and / or the connecting piece.

7. An energy storage device, characterized by, The battery device comprises the battery device according to any one of claims 1 to 3 or the battery device according to any one of claims 4 to 6.

8. The energy storage device of claim 7, wherein, Two ends of a straight section of the cable are respectively provided with one of the infrared temperature measuring units, and the detection directions of the infrared temperature measuring units located at the two ends of the straight section are both towards the straight section.

9. The energy storage device of claim 7, wherein, Two of the infrared temperature measuring units are arranged at a bending portion of the cable, the detection directions of the two infrared temperature measuring units located at the bending portion are respectively arranged towards the extension directions of the corresponding cables, and the detection directions of the two infrared temperature measuring units located at the bending portion are different.

10. The energy storage device of any one of claims 7 to 9, wherein, The energy storage device further comprises a fire-fighting pipeline and at least one first fire-fighting module, the fire-fighting pipeline being used for fire-fighting medium transmission, and the first fire-fighting module being used for fire-fighting treatment of the battery device based on the fire-fighting medium. The fire-fighting pipeline is connected to the first fire-fighting module through a corresponding switch valve.

11. The energy storage device of claim 10, wherein, The fire-fighting pipeline is located in a cable trench where the cable is located, and a plurality of second fire-fighting modules are arranged at intervals on the fire-fighting pipeline, and the second fire-fighting modules are used for fire-fighting treatment of the cable based on the fire-fighting medium.

12. The energy storage device of claim 10, wherein, A plurality of temperature sensing modules are arranged at intervals on the fire-fighting pipeline, and the temperature sensing modules are used for detecting the temperature of the cable.

13. An energy storage system characterized by, A battery device as claimed in any one of claims 1 to 3, or a battery pack device as claimed in any one of claims 4 to 6, or an energy storage device as claimed in any one of claims 7 to 12.

Images