Battery monitoring device

Abstract

The utility model discloses a battery monitoring device which is electrically connected with an external parallel battery module and is used for monitoring and controlling the parallel battery module. The battery monitoring device comprises a monitoring display module and a control module which are embedded into the cabinet; the monitoring display module is electrically connected with the first interface of the parallel battery module; the control module comprises a control switch and a controlled unit; the controlled unit is electrically connected with the second interface of the parallel battery module; and the control switch is electrically connected with the controlled unit through a lead shunted by a bus copper bar. Based on the battery monitoring device in the technical scheme of the invention, the whole wiring is not crossed, and the line is clear at a glance, so that the wiring and line maintenance are clearer and more convenient, the structure of the whole device is optimized, and the maintenance of modules and cables in the device is more convenient.

Description

Technical Field

[0001] The present application relates to the technical field of battery charging and discharging, and in particular to a battery monitoring device. Background Art

[0002] With the advancement of technology and the development of social informatization, the stability of power systems, the continuity of communication networks, and the uninterrupted operation of important facilities such as data centers are becoming increasingly important. Therefore, current power systems generally have backup battery packs and corresponding battery monitoring devices to deal with emergencies such as power failures. For battery monitoring devices, as the number of batteries connected and monitored and the battery capacity increase, the structure becomes more and more complex, and the cost and difficulty of manual maintenance also increase, mainly manifested in the inconvenience of wiring and line maintenance.

[0003] In view of this, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content

[0004] The main purpose of the present application is to provide a battery monitoring device, aiming to solve the technical problems of inconvenient wiring and line maintenance of existing battery monitoring devices.

[0005] To achieve the above-mentioned purpose, the battery monitoring device proposed in the present application is electrically connected to an external parallel battery module for monitoring and controlling the parallel battery module; the battery monitoring device comprises:

[0006] Monitoring display module and control module embedded in the cabinet;

[0007] The monitoring and display module is electrically connected to the first interface of the parallel battery module;

[0008] The control module includes a control switch and a controlled unit;

[0009] The controlled unit is electrically connected to the second interface of the parallel battery module;

[0010] The control switch is electrically connected to the controlled unit via a conductor shunted by a busbar copper bar.

[0011] Optionally, the battery monitoring device further comprises: a brim, wherein the brim is arranged on the top of the cabinet and is provided with a dust cap.

[0012] Optionally, the monitoring and display module is arranged on the top of the cabinet and isolated from the high-voltage module.

[0013] Optionally, the monitoring and display module includes a working condition detection module, a display panel and a communication interface.

[0014] Optionally, the control switch extends from a protection plate of the cabinet to the outside.

[0015] Optionally, the controlled unit is arranged on a side panel of the cabinet, and the side panel is provided with heat dissipation holes.

[0016] Optionally, the controlled unit is arranged adjacent to the fan module.

[0017] Optionally, the controlled unit is in contact with a heat spreader of the vacuum chamber.

[0018] Optionally, the battery monitoring device further includes: a base with a preset height, wherein the base is arranged at the bottom of the cabinet.

[0019] Optionally, the parallel battery module includes a plurality of parallel battery packs, each of which is connected to a corresponding controlled unit.

[0020] The beneficial effects of the present application: through the shunting design of the busbar copper busbar in the battery monitoring device of the present application, the wire is connected from the incoming line end to the inside of the control module and shunted to each control switch through the busbar copper busbar, and then connected to the controlled unit one by one. The overall routing has no crossover, and the line is clear at a glance, making the wiring and line maintenance clearer and more convenient. And through the battery monitoring device, the connected parallel battery modules can replace the traditional series battery modules, reducing the number of series battery modules and increasing the number of parallel battery packs. The parallel battery pack naturally does not require the complex line connection of the series battery modules in the entire device, and can be better matched with the busbar copper busbar, optimizing the overall device structure, making the maintenance of the modules and cables inside the device more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the external structure of a battery monitoring device according to the first embodiment of the battery monitoring device of the present application;

[0023] Figure 2 This is a schematic diagram of the external structure of a battery monitoring device according to a second embodiment of the battery monitoring device of the present application;

[0024] Figure 3 A schematic diagram of the internal structure of a battery monitoring device according to an embodiment of the battery monitoring device of the present application;

[0025] Figure 4 This is a schematic diagram of the structure of a controlled unit of an embodiment of a battery monitoring device of the present application;

[0026] Figure 5 This is a schematic diagram of the heat dissipation hole structure of the side panel of an embodiment of the battery monitoring device of the present application.

[0027] Description of Figure Numbers:

[0028]

[0029]

[0030] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B; in addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0034] Please refer to Figure 1 to Figure 5 As shown in the figure, the battery monitoring device is electrically connected to the external parallel battery module and is used to monitor and control the parallel battery module; the battery monitoring device includes:

[0035] A monitoring and display module 2 and a control module 3 embedded in the cabinet;

[0036] The monitoring and display module 2 is electrically connected to the first interface of the parallel battery module;

[0037] The control module 3 includes a control switch 303 and a controlled unit 304;

[0038] The controlled unit 304 is electrically connected to the second interface of the parallel battery module;

[0039] The control switch 303 is electrically connected to the controlled unit 304 via a wire shunted by the busbar copper bar 302 .

[0040] In this embodiment, the battery monitoring device is mainly used to connect with the parallel battery module to realize the functions of remote online capacity verification, automatic charge and discharge management and other automated operation and maintenance of the batteries therein, and mainly includes a monitoring display module 2, a control module 3 and a cabinet (not shown in the figure). The parallel battery module includes a plurality of parallel battery packs, each of which is connected to a corresponding controlled unit 304. The controlled unit 304 can be a DC-DC converter for high and low voltage conversion. The function of the parallel battery module and the battery pack is to supply power to the power system and realize the backup power function. The first interface and the second interface here can be different communication interfaces, such as CAN, RJ485, etc.

[0041] The monitoring and display module 2 is used to monitor the input / output voltage, current, temperature, internal resistance and other parameters of the parallel charging / discharging module in real time, and collect the real-time data of each battery unit at the same time, and can communicate with the background through the communication interface such as the network port. The control module 3 can cooperate with the monitoring and display module 2 to control and manage the charging and discharging, and capacity verification of the batteries of the parallel battery module. For example, the voltage change is controlled to achieve step-down output during charging to charge the battery, and step-up during discharge to increase the battery voltage to power the device.

[0042] The control module 3 includes a plurality of control switches 303 and a plurality of controlled units 304 . A group of control modules 3 can independently control a group of batteries, that is, a group of control modules 3 is electrically connected to a corresponding group of batteries through the controlled units 304 therein.

[0043] The circuits involved in the battery monitoring device are mainly the connections between the control part and the energy storage part, that is, the connection between the control module 3 and the battery pack, so the control switch 303 is designed to be electrically connected to the controlled unit 304 through the wire shunted by the busbar copper bus 302, and then the controlled units 304 are respectively connected to the corresponding battery packs, so that the circuits are clear and easy to connect and maintain.

[0044] Through the shunting design of the busbar copper bar 302 in the battery monitoring device of the present application, the wire is connected from the incoming line end to the inside of the control switch 303, and then shunted to each control switch 303 through the busbar copper bar 302, and then connected to the controlled unit 304 one by one. The overall routing has no crossover, and the line is clear at a glance, making the wiring and line maintenance clearer and more convenient. And through the battery monitoring device, the connected parallel battery modules can replace the traditional series battery modules, reducing the number of series battery modules and increasing the number of parallel battery packs. The parallel battery pack naturally does not require the complex line connection of the series battery modules in the entire device, and can be better matched with the busbar copper bar 302, optimizing the overall device structure, and making the maintenance of the modules and cables inside the device more convenient.

[0045] Optionally, in one embodiment, referring to Figure 1 .

[0046] The battery monitoring device further comprises: a brim 1, which is arranged on the top of the cabinet and is provided with a dust cap.

[0047] This embodiment is used to protect against external dust and a small amount of dripping water through the brim 1 and the dust cap.

[0048] Optionally, in one embodiment, referring to Figure 1 .

[0049] The monitoring and display module 2 is arranged on the top of the cabinet and is isolated from the high-voltage module.

[0050] The monitoring and display module 2 is distributed on the top of the entire cabinet, and the corresponding parallel battery module and control module 3 (the two can be collectively referred to as high-voltage modules) are distributed on the bottom of the cabinet, so that the monitoring and display module 2 is isolated from the high-voltage power, which is more conducive to avoiding interference of the signal part by the high-voltage power.

[0051] Optionally, in one embodiment, referring to Figure 2 .

[0052] The monitoring and display module 2 includes a working condition detection module, a display panel 201 and a communication interface 202 .

[0053] The input end of the working condition detection module (not shown) can be electrically connected to the parallel battery module, and the output end can be electrically connected to the input end of the display panel 201 and the communication interface 202 respectively. The display panel can intuitively display various working condition parameters, and the communication interface 202 can send the detection data to the user terminal and the background, and the user terminal and the background can also remotely control the battery monitoring device and upgrade the system and software and firmware. Among them, the communication interface 202 can be a 485 and / or LAN interface. The display panel 201 can be operated by a touch screen.

[0054] Optionally, in one embodiment, referring to Figure 2 and Figure 3 .

[0055] The control switch 303 extends from the protection plate 301 of the cabinet to the outside.

[0056] An insulating protection plate 301 may be provided to protect the internal structure of the cabinet from being easily damaged, thereby avoiding the risk of electric shock to personnel.

[0057] Optionally, in one embodiment, referring to Figure 4 and Figure 5 .

[0058] The controlled unit 304 is disposed on a side panel of the cabinet, and the side panel is provided with heat dissipation holes 305 .

[0059] A certain air duct is formed between the controlled unit 304 and the heat dissipation holes 305 of the side plate, and the heat is dissipated in time through the heat dissipation holes 305, thereby reducing damage to the battery monitoring device due to overheating.

[0060] Optionally, in one embodiment, the controlled unit 304 is disposed adjacent to the fan module.

[0061] In order to improve the heat dissipation capacity, a fan (not shown) may also be provided to more efficiently discharge heat from the cabinet, thereby extending the service life of the internal heating components.

[0062] Optionally, in one embodiment, the controlled unit 304 is in contact with a heat sink of the vacuum chamber.

[0063] In order to further improve the heat dissipation capacity of the controlled unit 304, a vacuum chamber heat spreader may be provided, while also reducing the risk of damage due to excessive temperature in a single point area.

[0064] Optionally, in one embodiment, referring to Figure 1 .

[0065] The battery monitoring device further comprises: a base 4 of a preset height, and the base 4 is arranged at the bottom of the cabinet.

[0066] The base 4 has a certain height, and the height can be set according to actual needs to facilitate the laying of cables. The entire cable is distributed in a preset cable routing duct. The base 4 is elevated as a whole so that its use will not be affected in the event of sudden water pipe damage or water ingress into the room causing the bottom to be slippery, making it safer for users to use.

[0067] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the application concept of the present application, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A battery monitoring device, characterized in that: The battery monitoring device is electrically connected to the external parallel battery module and is used to monitor and control the parallel battery module; the battery monitoring device includes: Monitoring display module and control module embedded in the cabinet; The monitoring and display module is electrically connected to the first interface of the parallel battery module; The control module includes a control switch and a controlled unit; The controlled unit is electrically connected to the second interface of the parallel battery module; The control switch is electrically connected to the controlled unit via a conductor shunted by a busbar copper bar.

2. The battery monitoring device according to claim 1, characterized in that: The battery monitoring device further comprises: a brim, which is arranged on the top of the cabinet and is provided with a dustproof cap.

3. The battery monitoring device according to claim 1, characterized in that: The monitoring and display module is arranged on the top of the cabinet and is isolated from the high-voltage module.

4. The battery monitoring device according to claim 1, characterized in that: The monitoring and display module includes a working condition detection module, a display panel and a communication interface.

5. The battery monitoring device according to claim 1, characterized in that: The control switch passes through the protection plate of the cabinet and extends to the outside.

6. The battery monitoring device according to claim 1, characterized in that: The controlled unit is arranged on a side plate of the cabinet, and the side plate is provided with heat dissipation holes.

7. The battery monitoring device according to claim 6, characterized in that: The controlled unit is arranged adjacent to the fan module.

8. The battery monitoring device according to claim 6, characterized in that: The controlled unit is in contact with and connected to a heat spreader in the vacuum chamber.

9. The battery monitoring device according to claim 1, characterized in that: The battery monitoring device further includes: a base with a preset height, and the base is arranged at the bottom of the cabinet.

10. The battery monitoring device according to claim 1, characterized in that: The parallel battery module includes a plurality of parallel battery groups, each of which is connected to a corresponding controlled unit.

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