Battery pack of electric trailer

Abstract

The utility model relates to a battery pack of an electric trailer, which comprises a battery cover unit, battery body units and battery flexible temperature and stress sensing units, the battery body units are distributed in an array, and the battery flexible temperature and stress sensing units are used for collecting and monitoring temperature and stress data of the battery body units. And the data is transmitted to the battery cover unit. According to the design, the temperature and stress states of the battery body units can be accurately reflected in real time, accurate monitoring of a single battery body unit or a local area of the battery pack can be achieved according to real-time temperature information changes and stress information changes, abnormal battery body units can be conveniently positioned, first-aid repair and maintenance are facilitated, potential safety hazards are timely solved, and the service life of the battery pack is prolonged. Voice warning can be carried out, and the practicability is good.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, specifically to a battery pack for an electric trailer. Background Technology

[0002] In today's rapidly developing electric trailer technology, the battery pack, as its core component, directly affects the overall operating efficiency and reliability of the trailer in terms of performance and safety. With the continuous expansion of electric trailer applications, higher demands are being placed on the monitoring and management of battery packs. Especially under complex and variable operating conditions, temperature and stress changes within the battery pack become key factors affecting battery performance and safety, which is of great significance for ensuring the safe and stable operation of electric trailers.

[0003] Traditional battery monitoring mostly uses hard-wired sensors, connecting the sensors to monitoring equipment via wires to monitor battery parameters. However, this method has many shortcomings. Traditional monitoring often only monitors the overall state of the battery pack, failing to achieve precise monitoring of individual battery cells or localized areas of the battery pack. Furthermore, traditional monitoring involves complex wiring and high costs. To address these issues, this invention proposes a battery pack for an electric trailer. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a battery pack for an electric trailer, addressing the shortcomings of the prior art.

[0005] The technical solution adopted by this utility model is: a battery pack for an electric trailer, including a battery cover unit, a battery body unit, and a battery flexible temperature and stress sensing unit.

[0006] The battery cover unit is used to transmit the temperature and stress signal data of the battery body unit to the external software monitoring system unit through signal lines. The battery cover unit includes a collar and a battery cover. Each collar corresponds to one battery cover. The collar is fixedly connected to the lower surface of the battery cover. The collar can be fitted onto the flexible temperature and stress sensing unit of the battery. The collar is also equipped with a reserved connector for signal transmission. The reserved connector is connected to the software monitoring system unit through signal lines.

[0007] The battery body unit is arranged in an array, and multiple battery body units are connected in series.

[0008] The battery flexible temperature and stress sensing unit is used to collect and monitor the temperature and stress data of the battery body unit and transmit the data to the battery cover unit.

[0009] Preferably, the battery flexible temperature and stress sensing unit further includes a reserved interface, a battery flexible outer sheath, and a sensing array unit. The reserved interface is installed on the battery flexible outer sheath, and each reserved interface corresponds to a reserved connector and is connected to the reserved connector for signal transmission. A collar is fitted on the upper part of the outer surface of the battery flexible outer sheath, and the inner surface of the battery flexible outer sheath wraps around the cylindrical surface of the battery body unit. Each battery flexible outer sheath corresponds to one battery body unit, and a sensing array unit is provided between each battery body unit and its corresponding battery flexible outer sheath.

[0010] Preferably, the sensing array unit further includes a flexible temperature sensor and a flexible stress sensor, both of which are connected to a reserved interface via signal lines; the temperature of the battery body unit can be monitored in real time by the flexible temperature sensor, and the stress of the battery body unit can be monitored in real time by the flexible stress sensor, and the obtained temperature and stress signal data can be transmitted to the battery cover unit.

[0011] Preferably, each of the sensor array units contains at least two flexible temperature sensors and two flexible stress sensors.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model includes a battery cover unit, a battery body unit, and a battery flexible temperature and stress sensing unit. It can accurately reflect the temperature and stress state of the battery body unit in real time, and can achieve precise monitoring of a single battery body unit or a local area of ​​the battery pack based on real-time temperature and stress information changes. This facilitates the location of abnormal batteries, enables emergency repair and maintenance, timely resolution of safety hazards, and provides voice warnings, making it highly practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the principle system of the electric trailer battery pack of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the battery pack for the electric trailer of this utility model.

[0016] Figure 3 This is a schematic diagram of the battery cover unit of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the arrayed battery cell of this utility model.

[0018] Figure 5 This is a schematic diagram of the flexible temperature and stress sensing unit for batteries according to this utility model.

[0019] Illustration:

[0020] 100. Battery cover unit; 101. Reserved connector; 102. Battery cover; 200. Battery body unit; 300. Battery flexible temperature and stress sensing unit; 301. Reserved interface; 302. Battery flexible outer cover; 303. Sensor array unit; 304. Flexible temperature sensor; 305. Flexible stress sensor; 400. Software monitoring system unit. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0023] Example

[0024] Please see Figures 1-5 As shown, the battery pack of an electric trailer described in this embodiment includes a battery cover unit 100, a battery body unit 200, and a battery flexible temperature and stress sensing unit 300.

[0025] The battery cover unit 100 is used to transmit the temperature and stress signal data of the battery body unit 200 to the external software monitoring system unit 400 through signal lines. The battery cover unit 100 includes a collar and a battery cover 102. The signal lines can be routed on the surface of the battery cover 102, and the signal lines and the battery cover 102 can form a circuit board. In implementation, multiple circuit boards can be arrayed to simplify the circuit and save costs. Each collar corresponds to one battery cover 102. The collar is fixedly connected to the lower surface of the battery cover 102. The collar is made of a material with a certain elasticity. The collar can be detachably sleeved on the flexible temperature and stress sensing unit 300 of the battery. The collar is also equipped with a reserved connector 101 for signal transmission. The reserved connector 101 is connected to the software monitoring system unit 400 through the signal lines on the surface of the battery cover 102.

[0026] The battery body units 200 are arranged in an array, each battery body unit 200 has a corresponding number, and multiple battery body units 200 are connected in series. In practice, the battery body units 200 are installed on an electric trailer, and each battery body unit 200 can correspond to a collar. The array design of the battery body units 200 is in an n×n form. Figure 4 The diagram shows the structure of an arrayed battery cell with n=5. The arrayed layout helps to reduce space occupation, facilitate wiring, simplify circuits, facilitate centralized management of batteries, improve the energy density and range of the battery pack, facilitate the transmission of temperature and stress signals, help improve the transmission speed of temperature and stress signals of the battery, and facilitate online monitoring of temperature and stress of the electric trailer battery pack.

[0027] The battery flexible temperature and stress sensing unit 300 is used to collect and monitor the temperature and stress data of the battery body unit 200 and transmit the data to the battery cover unit 100.

[0028] The software monitoring system unit 400 is also connected to an external warning speaker via a signal line, which is used for voice warnings.

[0029] The software monitoring system unit 400 is used to receive signals from the battery cover unit 100, perform identification and judgment, monitor the temperature stress state of the battery body unit 200, and evaluate the operating status of the electric trailer battery body unit 200. Specifically, the software monitoring system unit 400 also includes a receiving module, an identification module, a judgment module, a display module, an early warning module, and an instruction module. The input terminal of the receiving module is connected to the battery cover unit 100, the output terminal of the receiving module is connected to the input terminal of the identification module, the output terminal of the identification module is connected to the input terminal of the judgment module, the output terminal of the judgment module is connected to the input terminal of the display module, the output terminal of the display module is connected to the input terminal of the early warning module, the output terminal of the early warning module is connected to the input terminal of the instruction module, and the output terminal of the instruction module is connected to the early warning horn.

[0030] Furthermore, the battery flexible temperature and stress sensing unit 300 also includes a reserved interface 301, a battery flexible outer sheath 302, and a sensing array unit 303. The reserved interface 301 is installed on the battery flexible outer sheath 302. Each reserved interface 301 corresponds to a reserved connector 101 and is connected to the reserved connector 101 for signal connection. A collar is detachably fitted on the upper part of the outer surface of the battery flexible outer sheath 302. The battery flexible outer sheath 302 can be made of materials such as polyimide (PI). The inner surface of the battery flexible outer sheath 302 is wrapped around the cylindrical surface of the battery body unit 200, and each battery flexible outer sheath 302 corresponds to one battery body unit 200. A sensing array unit 303 is provided between each battery body unit 200 and its corresponding battery flexible outer sheath 302.

[0031] Furthermore, the sensing array unit 303 also includes a flexible temperature sensor 304 and a flexible stress sensor 305. Both the flexible temperature sensor 304 and the flexible stress sensor 305 are connected to the reserved interface 301 via signal lines. The temperature of the battery body unit 200 can be monitored in real time by the flexible temperature sensor 304, and the stress of the battery can be monitored in real time by the flexible stress sensor 305. The obtained temperature and stress signal data are transmitted to the battery cover unit 100. In practice, the flexible temperature sensor 304 and the flexible stress sensor 305 are in contact with the cylindrical surface of the battery body unit 200.

[0032] Furthermore, in each of the aforementioned sensor array units 303, the number of flexible temperature sensors 304 and flexible stress sensors 305 is no less than two. In practice, the number of sensors can be appropriately increased according to the perimeter of the battery body unit 200. Both the flexible temperature sensors 304 and flexible stress sensors 305 are bonded to the inner surface of the battery flexible outer casing 302. Silicone potting compound can be selected as the adhesive for bonding the sensors. After curing, the silicone potting compound layer has a certain elasticity, which can buffer the sensor from damage when the battery body unit 200 or the sensor is subjected to vibration or impact. Please refer to [link to relevant documentation]. Figure 5 In specific implementation, if there are two flexible temperature sensors 304 and two flexible stress sensors 305, then in the unfolded cross section of the battery flexible outer casing 302, the four sensors can be arranged in a square. The temperature sensor 303 and the stress sensor 304 are located at opposite corners of the square. Combined with the battery flexible outer casing 302, the outer surface of the battery body unit 200 is wrapped, which can better and faster reflect the temperature and stress changes of the battery body unit 200.

[0033] Working principle: Please refer to Figures 1-5As shown: Flexible temperature sensor 304 and flexible stress sensor 305 monitor the real-time temperature and stress information of the battery body unit 200, respectively. Simultaneously, they transmit the real-time temperature and stress information, along with the corresponding battery body unit 200 number, to the flexible temperature and stress sensing unit 300. The flexible temperature and stress sensing unit 300 then transmits the signal data to the battery cover unit 100, which in turn transmits the signal data to the receiving module of the software monitoring system unit 400. After receiving the signal, the receiving module sends it to the identification module, which then transmits the information to the judgment module. If the real-time temperature signal data is outside the temperature threshold range, a temperature anomaly judgment is made for the battery body unit 200, and the judgment result is then transmitted to the display module, which displays the battery body unit's temperature. The system determines the temperature of battery cell 200. If the stress signal data is outside the stress threshold range, a stress anomaly is determined, and the result is transmitted to the display module. The display module shows the results of the temperature and stress state determination of the battery cell 200. It can also display the number of each battery cell 200 and the temperature and stress information of each battery cell 200. Based on the anomaly determination, the location of the abnormal battery cell 200 can be located in an addressable manner, facilitating the search for the abnormal battery cell 200, enabling emergency repair and maintenance, and timely resolution of safety hazards. It can achieve precise monitoring of a single battery cell 200 or a local area of ​​the battery pack. When an anomaly occurs, an early warning module can issue a warning, and a command module can send a command to the warning speaker for a voice warning.

[0034] It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely for distinguishing one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery pack for an electrically powered trailer, characterized by It includes a battery cover unit (100), a battery body unit (200), and a battery flexible temperature and stress sensing unit (300); The battery cover unit (100) is used to transmit the temperature and stress signal data of the battery body unit (200) to the external software monitoring system unit (400) through the signal line. The battery cover unit (100) includes a collar and a battery cover (102). Each collar corresponds to one battery cover (102). The collar is fixedly connected to the lower surface of the battery cover (102). The collar can be fitted onto the battery flexible temperature and stress sensing unit (300). The collar is also equipped with a reserved connector (101) for signal transmission. The reserved connector (101) is connected to the software monitoring system unit (400) through the signal line. The battery body unit (200) is arranged in an array and multiple battery body units (200) are connected in series. The battery flexible temperature and stress sensing unit (300) is used to collect and monitor the temperature and stress data of the battery body unit (200) and transmit the data to the battery cover unit (100).

2. A battery pack for an electrically powered trailer as claimed in claim 1 wherein: The battery flexible temperature and stress sensing unit (300) also includes a reserved interface (301), a battery flexible outer sheath (302), and a sensing array unit (303). The reserved interface (301) is installed on the battery flexible outer sheath (302). Each reserved interface (301) corresponds to a reserved connector (101) and is connected to the reserved connector (101) for signal connection. A collar is fitted on the upper part of the outer surface of the battery flexible outer sheath (302). The inner surface of the battery flexible outer sheath (302) is wrapped around the cylindrical surface of the battery body unit (200). Each battery flexible outer sheath (302) corresponds to a battery body unit (200). A sensing array unit (303) is provided between each battery body unit (200) and its corresponding battery flexible outer sheath (302).

3. An electrically powered trailer battery pack according to claim 2, wherein: The sensing array unit (303) also includes a flexible temperature sensor (304) and a flexible stress sensor (305), both of which are connected to the reserved interface (301) via signal lines.

4. An electrically powered trailer battery pack according to claim 3, wherein: In each of the sensor array units (303), the number of flexible temperature sensors (304) and flexible stress sensors (305) is not less than two.

5. The battery pack for an electric trailer according to claim 3, characterized in that: The temperature of the battery body unit (200) is monitored in real time by a flexible temperature sensor (304), and the stress of the battery body unit (200) is monitored in real time by a flexible stress sensor (305). The obtained temperature and stress signal data are then transmitted to the battery cover unit (100).

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