Battery module, UPS system, data center and rail transit equipment

Abstract

The utility model relates to a battery module, a UPS (Uninterrupted Power Supply) system, a data center and rail transit equipment. The battery module comprises a battery module and a BMS module, and the BMS module is connected with the battery module and used for monitoring, displaying and managing parameter information of the battery module; and the battery module can be connected with external equipment through the BMS module so as to transmit the parameter information. The battery module provided by the utility model is small in size, low in cost and suitable for a miniaturized data center.

Description

Technical Field

[0001] The utility model relates to the technical field of battery management, and more specifically, to a battery module, a UPS system, a data center and rail transportation equipment. Background Art

[0002] UPS, also known as Uninterruptible Power Supply, is an uninterruptible power supply with an energy storage device. It is used to provide uninterruptible power supply to some equipment that requires high power stability.

[0003] Traditional battery modules need to be equipped with a power main control and power display control before they can be used in a UPS system, which causes the related structure to occupy a large volume. In addition, the UPS system using this type of battery module is costly and occupies a large space. Utility Model Content

[0004] One object of the utility model is to provide a battery module, a UPS system, a data center and rail transportation equipment.

[0005] According to one aspect of the utility model, there is provided a battery module, comprising:

[0006] A battery module and a BMS module, wherein the BMS module is connected to the battery module and is used to monitor, display and manage parameter information of the battery module;

[0007] The battery module can be connected to an external device through the BMS module to transmit the parameter information.

[0008] Optionally, the battery module includes a plurality of the battery modules, the plurality of the battery modules are connected in parallel to form a battery pack, and the BMS module is connected to the battery pack.

[0009] Optionally, the BMS module is connected to a sampling harness of a battery pack via a switching harness, and forms an electrical connection and a communication connection with the battery pack.

[0010] Optionally, it further includes a power terminal and a communication interface, and the battery module can form an electrical connection with an external device through the power terminal, and form a communication connection with an external device through the communication interface.

[0011] Optionally, a shell is further included, and the battery module and the BMS module are both arranged in the shell.

[0012] Optionally, the housing comprises a box body and a panel mounted on one end of the box body, and a display window is provided on the panel;

[0013] The power terminal and the communication interface are exposed on the panel, and the BMS module is located at one end close to the panel, so that the display screen of the BMS module is opposite to the display window.

[0014] Optionally, the panel is detachably mounted on one end of the box.

[0015] Optionally, the shell further includes a partition plate, which is disposed between the battery module and the BMS module to separate the battery module and the BMS module, and the BMS module is detachably fixed to the partition plate.

[0016] Optionally, the battery module is a lithium iron phosphate battery.

[0017] According to a second aspect of the present invention, a UPS system is provided, comprising a UPS host and the battery module according to the first aspect, wherein the battery module is connected to the UPS host via the BMS module.

[0018] Optionally, a DC / DC module is provided in the UPS host, and the battery module is connected to the UPS host via the DC / DC module.

[0019] According to a third aspect of the present invention, a data center is provided, comprising the UPS system described in the second aspect.

[0020] Optionally, it further includes a cabinet and a power distribution system, wherein the power distribution system is connected to the UPS system, and both the power distribution system and the UPS system are arranged in the cabinet.

[0021] According to a fourth aspect of the present invention, there is provided a rail transit equipment, comprising: the data center described in the third aspect.

[0022] One technical effect of the utility model is that the utility model integrates the functions of the main control, display control and other modules by arranging the BMS module in the battery module, simplifies the internal structure of the battery module, reduces the space occupied by the battery module, and can improve the integration of the entire UPS system when applied to the UPS system.

[0023] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0025] Figure 1 It is a structural schematic diagram of a battery module provided by the utility model.

[0026] Figure 2 yes Figure 1 Exploded diagram.

[0027] Figure 3 The utility model provides a UPS system connection diagram of each module.

[0028] Description of reference numerals:

[0029] 1. UPS host; 11. Positive electrode; 12. Negative electrode; 13. Communication port; 2. Battery module; 211. Positive electrode terminal; 212. Negative electrode terminal; 213. First communication interface; 214. Second communication interface; 22. BMS module; 221. Display screen; 23. Box; 24. Panel; 241. Display window; 242. Power terminal; 243. Communication interface; 25. Partition plate. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0032] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] like Figures 1 to 3 As shown, according to one aspect of the utility model, a battery module is provided, including a battery module 2 and a BMS module 22, wherein the BMS module 22 is connected to the battery module 2 for monitoring, displaying and managing parameter information of the battery module 2; the battery module can be connected to an external device through the BMS module 22 to transmit the parameter information.

[0036] Specifically, in this embodiment, the battery module 2 and the BMS module 22 are integrated in the battery module, and the BMS module 22 integrates the functions of the main control, display control and other modules in the traditional battery module. It has a simple structure, compact components, low cost, strong adaptability, simplifies the internal structure of the battery module, and reduces the space occupied by the battery module. Among them, the external device can be a UPS host 1, and the battery module and the UPS host 1 form a UPS system. When it is applied to the UPS system, the integration of the entire UPS system is improved. In addition, the setting of the BMS module 22 also reduces the architectural level of the battery module, simplifies the internal control logic, reduces the number of failure points, and improves the safety and reliability of the entire UPS system.

[0037] In the above embodiment, the BMS module 22, i.e. the battery management system (Battery Management System) module, is a vital component of the battery module, and is used to monitor, control and protect the battery module. The BMS module 22 generally has the functions of real-time monitoring of the voltage and temperature of a single battery (monomer), thermal management and passive balancing, real-time monitoring of the voltage and current of a battery string, insulation monitoring, high-precision SOC / SOH estimation, fault diagnosis and alarm protection, balancing management, data communication, setting the alarm value of each battery string, and real-time display.

[0038] In practical applications, when the battery module provided by the utility model is applied to a UPS system, it can save nearly 60% of space and reduce the overall equipment cost by nearly 70%. For example, if a traditional UPS device wants to complete the backup power function, it needs a UPS host 1, a 3U high main control, a 3U high battery module and a display control to complete the work, while the UPS system provided by this embodiment only needs a UPS host 1 and a 3U high battery module to meet the requirements, which is equivalent to eliminating the two devices of the power main control and the display control.

[0039] Alternatively, if Figure 3 As shown, the battery module includes a plurality of battery modules 2, and the plurality of battery modules 2 are connected in parallel to form a battery pack, and the BMS module 22 is connected to the battery pack.

[0040] Specifically, in actual applications, when the power demand of the battery module is large, multiple battery modules 2 can be set up for backup power. The positive terminals 211 of each battery module 2 are interconnected, and the negative terminals 212 are interconnected, so that the battery pack forms a total positive terminal 211 and a total negative terminal 212. The positive pole 11 and the negative pole 12 of the external device (UPS host 1) are respectively connected to the total positive terminal 211 and the total negative terminal 212. After the first communication interface 213 and the second communication interface 214 between each battery module 2 are connected in sequence, a total communication interface 243 is formed, and the communication port 13 of the external device (UPS host 1) is connected to the communication interface 243 of the battery module.

[0041] The multiple battery modules 2 of traditional UPS equipment are usually connected in series, resulting in a very high voltage (380-480V) for the entire battery pack, which is prone to safety accidents and places high voltage requirements on electronic components. At the same time, when a battery module 2 fails and opens a circuit, the connection between the entire battery pack and the UPS host 1 will become an open circuit, thereby completely losing the backup power function.

[0042] The utility model connects the battery modules 2 in parallel so that the voltage of the entire battery pack is lower (about 51.2V), thereby making the installation, use, maintenance and other processes safer; at the same time, due to the parallel connection, when a battery module 2 fails and opens a circuit, it does not affect the overall external power supply of the battery pack.

[0043] In addition, unlike traditional UPS equipment that uses a main control to uniformly manage each battery module 2, the battery module provided by the utility model has a built-in complete BMS module 22 with self-protection and autonomous management functions, and can perform real-time monitoring of battery string voltage and current, high-precision SOC / SOH estimation, fault diagnosis and alarm protection, balancing management functions and data communication, further improving safety and reliability.

[0044] Optionally, the BMS module 22 is connected to the sampling harness of the battery pack through a switching harness, and forms an electrical connection and a communication connection with the battery pack.

[0045] Specifically, in this embodiment, the connection between the adapter harness and the sampling harness is used to achieve the connection between the battery pack and the BMS module 22, which is conducive to the simplification of the connection harness within the battery module and improves the safety and reliability of the battery module. The battery pack can detect and transmit parameter information such as voltage and current of the battery pack through the sampling harness, providing basic management parameters for the BMS module 22.

[0046] Alternatively, if Figures 1 to 3As shown, it also includes a power terminal 242 and a communication interface 243. The battery module can form an electrical connection with an external device (such as a UPS host 1) through the power terminal 242, and form a communication connection with the external device through the communication interface 243.

[0047] Specifically, in this embodiment, the power terminal 242 and the communication interface integrated on the battery module are conducive to the integration of the battery module and the external device, and realize the power supply and data communication of the battery module to the external device.

[0048] Optionally, the battery module further includes a housing, in which the battery module 2 and the BMS module 22 are both disposed. Integrating the battery module and the BMS module in the same housing further improves the integration of the battery module and facilitates the handling and use of the battery module.

[0049] Alternatively, if Figure 1 to Figure 2 As shown, the shell includes a box body 23 and a panel 24 assembled at one end of the box body 23, and a display window 241 is provided on the panel 24; the power terminal 242 and the communication interface 243 are exposed on the panel 24, and the BMS module 22 is located near one end of the panel 24, so that the display screen 221 of the BMS module 22 is opposite to the display window 241.

[0050] Specifically, in this embodiment, the battery module is disposed in the box 23, and the power terminal 242 and the communication interface 243 of the battery module are exposed on the panel 24 to facilitate the connection between the battery module and external devices. In actual applications, the user can read the parameter information about the battery module on the display screen 221 through the display window 241 to facilitate the maintenance of the battery module.

[0051] In actual application, the height of the box 23 can be designed to be 3U, the rated capacity of the battery module is 100Ah, the rated voltage is 51.2V, and the rated power is 5.12KW·h. Among them, U is a unit representing the external dimensions of the server (unit of measurement: height or thickness), which is an abbreviation of unit. The detailed dimensions are determined by the American Electronics Industry Association (EIA), an industry group. The so-called "1U box 23" is a product whose appearance meets the EIA specifications and has a thickness of 4.445cm, and is designed to be placed in a 19-inch cabinet.

[0052] In this embodiment, the height of the box 23 is set to 3U, so that when the battery module is assembled in a data center or other cabinets, standard cabinet installation can be achieved. In addition, the rated capacity, rated voltage and rated power of the battery module improve the applicability of the battery unit 2.

[0053] Alternatively, if Figure 1 to Figure 2As shown, it also includes a partition plate 25, which is arranged between the battery module 2 and the BMS module 22 to separate the battery module 2 and the BMS module 22, and the BMS module 22 is detachably fixed to the partition plate 25.

[0054] Specifically, in this embodiment, the battery module 2 and the BMS module 22 are separated by providing a sealing plate 25, which is beneficial to improving the safety performance of the battery module 2 on the one hand, and is also convenient for the maintenance and replacement of the BMS module 22, thereby avoiding damage to the battery module during the maintenance process. In addition, the panel 24 is detachably mounted at the opening of the box 23, making the replacement and maintenance of the BMS module 22 more convenient, and is also beneficial to the maintenance of the battery module.

[0055] Optionally, the battery module is a lithium iron phosphate battery, which has the advantages of high safety, long life, green environmental protection, high efficiency, high and low temperature resistance, low maintenance cost and fast charging capability, and its application in battery modules can improve its safety and reliability.

[0056] According to the second aspect of the present application, a UPS system is provided, comprising a UPS host 1 and the battery module described in the first aspect, wherein the battery module is connected to the UPS host 1 through the BMS module 22, and the UPS host can receive the parameter information. The battery module is connected to the UPS host 1 to form a UPS system, thereby improving the integration of the entire UPS system.

[0057] Optionally, a DC / DC module is provided in the UPS host 1, and the battery module is connected to the UPS host 1 via the DC / DC module.

[0058] Specifically, a DC / DC module is a device that converts DC power with a fixed voltage value into a DC power supply with a variable voltage value. It is a DC-to-DC converter, also known as a DC chopper. In this embodiment, the addition of a DC / DC module enables the UPS host 1 to perform voltage boosting and power matching by itself, accurately meet the backup power requirements of the UPS system, avoid wasting power, and further save costs. Among them, the DC / DC module adopts a bidirectional DC / DC.

[0059] According to a third aspect of the present invention, a data center is provided, comprising the UPS system of the second aspect. The data center provided by the present invention is conducive to miniaturization and low cost of the entire data center because it adopts the UPS system of the second aspect.

[0060] Optionally, it further includes a cabinet and a power distribution system, wherein the power distribution system is connected to the UPS system, and both the power distribution system and the UPS system are arranged in the cabinet.

[0061] Specifically, a data center is usually a cabinet-type structure. The UPS system provided by the utility model occupies a small space, so that the space in the cabinet is more sufficient, and the multifunctional requirements of the data center can be met.

[0062] According to a fourth aspect of the present utility model, there is provided a rail transit equipment, comprising: the data center described in the third aspect.

[0063] Specifically, in this embodiment, the provided data center has high integration, low cost, and is easy to transport, so that when it is applied to rail transit equipment, it can improve the operating efficiency of rail transit and reduce operation and maintenance costs.

[0064] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0065] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A battery module, characterized in that: include: A plurality of battery modules and a BMS module, wherein the plurality of battery modules are connected in parallel to form a battery pack, and the BMS module is connected to the battery pack to monitor, display and manage parameter information of each battery module; The battery module can be connected to an external device through the BMS module to transmit the parameter information.

2. The battery module according to claim 1, characterized in that: The BMS module is connected to the sampling harness of the battery pack through the adapter harness and forms an electrical connection and a communication connection with the battery pack.

3. The battery module according to claim 1, characterized in that: It also includes a power terminal and a communication interface. The battery module can form an electrical connection with an external device through the power terminal, and form a communication connection with an external device through the communication interface.

4. The battery module according to claim 3, characterized in that: It also includes a shell, in which the battery module and the BMS module are both arranged.

5. The battery module according to claim 4, characterized in that: The housing comprises a box body and a panel mounted on one end of the box body, wherein a display window is provided on the panel; The power terminal and the communication interface are exposed on the panel, and the BMS module is located at one end close to the panel, so that the display screen of the BMS module is opposite to the display window.

6. The battery module according to claim 5, characterized in that: The panel is detachably mounted on one end of the box body.

7. The battery module according to claim 5, characterized in that: The housing further includes a sealing plate, which is disposed between the battery module and the BMS module to separate the battery module from the BMS module, and the BMS module is detachably fixed to the sealing plate.

8. The battery module according to claim 1, characterized in that: The battery module is a lithium iron phosphate battery.

9. A UPS system, characterized in that: It comprises a UPS host and a battery module according to any one of claims 1 to 8, wherein the battery module is connected to the UPS host through the BMS module.

10. The UPS system according to claim 9, characterized in that: The UPS host is provided with a DC / DC module, and the battery module is connected to the UPS host via the DC / DC module.

11. A data center, characterized in that: A UPS system comprising the UPS system of claim 10.

12. The data center according to claim 11, characterized in that: It also includes a cabinet and a power distribution system, wherein the power distribution system is connected to the UPS system, and both the power distribution system and the UPS system are arranged in the cabinet.

13. A rail transit equipment, characterized in that: include: The data center of claim 11 or 12.

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