Distributed online monitoring device for lead-acid storage battery pack

Abstract

The utility model discloses a distributed online monitoring device for a lead-acid storage battery pack, relates to the technical field of power storage of the lead-acid storage battery pack, and solves the problem that a monitoring device in the prior art cannot perform multi-point monitoring on the temperature of a shell of the lead-acid storage battery pack. The device comprises a controller, the controller is respectively connected with an alarm and a monitoring module, the monitoring module comprises an elastic screen frame used for covering the lead-acid storage battery, the bottom of the elastic screen frame is provided with a supporting assembly, the elastic screen frame is provided with a plurality of temperature measuring modules used for monitoring the temperature of different positions of the side wall of the lead-acid storage battery, and the temperature measuring modules are connected with the alarm. A liquid leakage monitoring module is arranged at a pole of the lead-acid storage battery, and the liquid leakage monitoring module and the temperature measuring module are both connected with a wire net arranged on the elastic net frame and are connected with the controller through the wire net. According to the device, liquid leakage monitoring at the pole positions of different lead-acid storage batteries of the lead-acid storage battery pack and temperature measurement at different point positions are achieved, installation is convenient, and monitoring is comprehensive and accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid battery group power storage, in particular to a distributed online monitoring device for lead-acid battery groups. Background Art

[0002] In the application technology of electricity storage using lead-acid battery packs, it is necessary to monitor the temperature and leakage of each battery in the battery pack to monitor the safety of each battery in real time. However, most of the existing battery temperature monitoring is single-point monitoring of the battery, and the lead-acid battery is divided into multiple spaces by partitions. When temperature abnormalities occur, it is often caused by problems with components in individual spaces. Conventional single-point temperature monitoring cannot monitor the status of the entire battery circumference in real time, resulting in untimely and inaccurate monitoring.

[0003] In addition, the common leakage problem of lead-acid batteries often occurs at the poles. Generally, if a lead-acid battery is used for more than one year, some of the batteries will leak at the poles. The conventional methods for monitoring leakage are: 1: Comprehensively judge the operating status of the battery by remotely collecting multiple parameters such as voltage and temperature, but the scheme cannot directly and effectively detect the leakage problem at the battery poles. 2: Detect the leakage of the battery by setting up multiple liquid collection trays and laying induction cables in the liquid collection trays. For example, the Chinese utility model patent with publication number CN217132504U discloses a lead-acid battery leakage detection device, which needs to measure when the electrolyte flows to the bottom of the battery, and cannot detect the leakage at the pole in time. In addition, the liquid collection tray at the bottom will also affect the heat dissipation at the bottom of the battery. 3: Two sets of wires are used to form a detection sensor. When leakage occurs, a wire path is formed between the two sets of wires of the detection sensor to drive the transistor to send out an alarm signal. For example, Chinese invention patents with publication numbers CN116164899A and CN115046695A both use this principle.

[0004] Therefore, how to design a monitoring device that is easy to assemble and install and can effectively perform multi-point temperature monitoring and pole leakage monitoring at the same time is an urgent problem to be solved. Utility Model Content

[0005] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a distributed online monitoring device for lead-acid battery packs, which solves the problem that the monitoring device in the prior art cannot perform multi-point monitoring of the lead-acid battery shell temperature.

[0006] The technical solution of the utility model is achieved as follows: a distributed online monitoring device for a lead-acid battery pack includes a controller, which is respectively connected to an alarm and a monitoring module, the monitoring module includes an elastic mesh frame for covering the lead-acid battery, a supporting assembly is provided at the bottom of the elastic mesh frame, a plurality of temperature measuring modules for monitoring the temperature at different positions of the side wall of the lead-acid battery are provided on the elastic mesh frame, a leakage monitoring module is provided at the pole of the lead-acid battery, the leakage monitoring module and the temperature measuring module are both connected to a wire mesh provided on the elastic mesh frame, and are connected to the controller through the wire mesh.

[0007] Preferably, the elastic net frame comprises a bandage net arranged in a box-shaped net shape, and a buckle for opening and closing the bandage net is provided on the upper end of the bandage net.

[0008] Preferably, the support assembly includes corner support blocks arranged at the four corners of the bottom of the bandage net, and the corner support blocks are connected to the bandage net via slots provided thereon.

[0009] Furthermore, the corner support block is provided with a double-sided sticker for bonding with the lead-acid battery. The buckle is a Velcro. A rubber suction cup is provided below the corner support block.

[0010] Preferably, the temperature measurement module includes a pressing block, one side of the pressing block is connected to the bandage net through a buckle, and the other side of the pressing block is provided with a foam pad, the foam pad is connected to the temperature sensor, and the temperature sensor is connected to the wire net.

[0011] Preferably, the leakage monitoring module includes an arc cover fixed on the lead-acid battery, the arc cover is matched with the pole of the lead-acid battery, and two electrodes are arranged in parallel at the opening of the arc cover, and both electrodes are connected to the wire mesh.

[0012] Preferably, the wire net includes cables respectively connecting the electrode and the controller, the temperature sensor and the controller, and the bandage net is provided with a C-shaped buckle for limiting the movement of the cables. The alarm is an audible and visual alarm.

[0013] The beneficial effects of the utility model are as follows: by setting a controller, the lead-acid batteries of the entire lead-acid battery group can be monitored, and an alarm can be sounded through an alarm when triggered. By setting an elastic mesh frame, it is convenient to fit and fix the temperature measurement modules on different side walls to the side walls of the lead-acid battery, and the elasticity can also provide continuous support for the temperature measurement module. At the same time, the elastic mesh frame can be conveniently connected to the lead-acid battery in a retrofit manner at a later stage, and the installation is convenient. The support assembly can support and fix the lead-acid battery, and is also conducive to heat dissipation. By setting a leakage monitoring module at the pole, the leakage of the pole can be monitored, and by setting a wire network, the signals of different leakage monitoring modules and temperature measurement modules when working can be transmitted to the controller. The device is used to realize leakage monitoring at the pole of different lead-acid batteries in the lead-acid battery group and temperature measurement at different points. It is easy to install and the monitoring is comprehensive and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is the overall usage state diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the matching structure of the elastic mesh frame and the lead-acid battery of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the elastic mesh frame and supporting components of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the temperature measurement module of the utility model;

[0019] Figure 5 This is a schematic diagram of the C-type buckle structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the leakage monitoring module of the utility model.

[0021] In the figure: 1: controller, 2: alarm, 3: elastic mesh frame, 4: temperature measurement module, 5: leakage monitoring module, 6: wire mesh, 7: bandage mesh, 8: buckle, 9: corner support block, 10: slot, 11: rubber suction cup, 12: pressure block, 13: buckle, 14: foam pad, 15: temperature sensor, 16: arc cover, 17: electrode, 18: C-type buckle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 , 2 As shown in , 3, embodiment 1, a distributed online monitoring device for a lead-acid battery pack, includes a controller 1, and the controller 1 is connected to an alarm 2 and a monitoring module respectively. In this embodiment, the alarm 2 is an audible and visual alarm. The monitoring module includes an elastic mesh frame 3 for covering the lead-acid battery, a supporting assembly is provided at the bottom of the elastic mesh frame 3, a plurality of temperature measuring modules 4 for monitoring the temperature at different positions of the side wall of the lead-acid battery are provided on the elastic mesh frame 3, a leakage monitoring module 5 is provided at the pole of the lead-acid battery, and the leakage monitoring module 5 and the temperature measuring module 4 are both connected to a wire mesh 6 provided on the elastic mesh frame 3, and connected to the controller 1 through the wire mesh 6.

[0024] The elastic net frame 3 includes a bandage net 7 arranged in a box mesh shape, and a buckle 8 for opening and closing the bandage net 7 is provided at the upper end of the bandage net 7. Specifically, the buckle 8 is a Velcro, which is convenient for opening the bandage net, and the lead-acid battery is placed in the box formed by the bandage net during installation. The bandage net is composed of elastic bandages arranged vertically and horizontally, and has a certain elasticity, so that it can be tightened on the surface of the lead-acid battery to form a fixed foundation during installation, and the bandage net can also avoid affecting the heat dissipation of the lead-acid battery. At the same time, by utilizing the elastic elasticity of the bandage net, it can also be applicable to the installation and use of lead-acid batteries of different sizes, thereby improving versatility.

[0025] Embodiment 2, a distributed online monitoring device for lead-acid battery pack, based on embodiment 1, as Figure 3 The support assembly shown includes corner support blocks 9 provided at the four corners of the bottom of the bandage net 7, and the corner support blocks 9 are connected to the bandage net 7 through the card slots 10 provided thereon. In this embodiment, four corner support blocks 9 are provided in total, which can support the lead-acid battery from the four corners. The corner support blocks are attached to the bandage net, and the spacing between them can be adjusted under the elastic expansion and contraction of the bandage net, so that they can be suitable for the installation and use of lead-acid batteries of different sizes.

[0026] The corner support block 9 is provided with a double-sided tape for bonding with the lead-acid battery. A rubber suction cup 11 is provided below the corner support block 9. In this embodiment, the double-sided tape can be provided to bond and fix the four corners of the bottom of the lead-acid battery to the corner support block respectively during installation to maintain the stability of the structure. The rubber suction cup can adsorb the corner support block to the bottom plate of the battery placement rack on site, thereby providing stable support and fixation for the lead-acid battery. Finally, the bottom of the lead-acid battery can be lifted to a certain height through the corner support block and the rubber suction cup, thereby forming an air gap, which is beneficial to the heat dissipation of the lead-acid battery.

[0027] Embodiment 3, a distributed online monitoring device for lead-acid battery pack, based on embodiment 2, as Figure 4 As shown, the temperature measurement module 4 includes a pressing block 12, one side of the pressing block 12 is clamped with the bandage net 7 through a buckle 13, and the other side of the pressing block 12 is provided with a foam pad 14, the foam pad 14 is connected to the temperature sensor 15, and the temperature sensor 15 is connected to the wire net 6. In this embodiment, the temperature sensor 15 uses a conventional self-adhesive thermocouple for temperature collection. The self-adhesive thermocouple itself has adhesion ability and can be easily adhered to the foam pad. At the same time, it can be adhered to the side wall of the lead-acid battery after installation to prevent displacement or inaccurate temperature measurement due to gaps.

[0028] At the same time, the present embodiment arranges a foam pad to support the self-adhesive thermocouple. After installation, the tightening elastic force of the bandage net can continuously apply pressure to the pressure block, thereby maintaining the fit between the temperature sensor and the side wall of the lead-acid battery. At the same time, after a long period of pressure, the self-adhesive thermocouple can be pressed into the foam pad, and the isolation of the foam pad can form a good measurement environment, thereby improving the accuracy of temperature measurement.

[0029] Embodiment 4, a distributed online monitoring device for lead-acid battery pack, based on embodiment 3, as Figure 6 As shown, the leakage monitoring module 5 includes an arc cover 16 fixedly mounted on the lead-acid battery, the arc cover 16 is arranged in cooperation with the pole of the lead-acid battery, and two electrodes 17 are arranged in parallel at the opening of the arc cover 16, and both electrodes 17 are connected to the wire mesh 6. In this embodiment, a gap is left between the arc cover and the pole, and the arc cover is bonded and fixed to the lead-acid battery, and the electrodes are in contact with the surface of the lead-acid battery. When leakage occurs at the pole, the leaked electrolyte is guided between the two electrodes under the collection of the arc cover, thereby short-circuiting the two electrodes 17, and then transmitting the short-circuit signal to the controller under the action of the wire mesh. At this time, the controller determines that leakage occurs and sends a signal to the alarm to control it to alarm.

[0030] In addition, the wire network 6 includes cables respectively connecting the electrode 17 and the controller 1, the temperature sensor 15 and the controller 1, such as Figure 5As shown, the bandage net 7 is provided with a C-shaped buckle 18 for limiting the movement of the cable. Specifically, the cable is laid along the bandage surface of the bandage net, and a ring is provided on one side of the C-shaped buckle. The bandage is inserted into the ring, so that the C-shaped buckle is fixed on the bandage, and the cable is fixed at the opening of the C-shaped buckle. In this embodiment, the controller 1 is a conventional controller, including a shell, which is fixed on the battery placement rack on site. A main control board connected to the power supply is provided in the shell. The main control board is connected to the leakage monitoring module and the temperature measurement module on several different lead-acid batteries through cables. When receiving a signal of abnormal temperature change, a signal is sent to the alarm provided on the shell to control its alarm.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A distributed online monitoring device for a lead-acid battery pack, comprising a controller (1), the controller (1) being connected to an alarm (2) and a monitoring module respectively, and characterized in that: The monitoring module comprises an elastic mesh frame (3) for covering the lead-acid battery, a support assembly is provided at the bottom of the elastic mesh frame (3), a plurality of temperature measurement modules (4) for monitoring the temperature at different positions of the side wall of the lead-acid battery are provided on the elastic mesh frame (3), a leakage monitoring module (5) is provided at the pole of the lead-acid battery, and both the leakage monitoring module (5) and the temperature measurement module (4) are connected to a wire mesh (6) provided on the elastic mesh frame (3), and are connected to a controller (1) via the wire mesh (6).

2. The distributed online monitoring device for lead-acid battery pack according to claim 1 is characterized in that: The elastic net frame (3) comprises a bandage net (7) arranged in a box-shaped net shape, and a buckle (8) for opening and closing the bandage net (7) is provided at the upper end of the bandage net (7).

3. The distributed online monitoring device for lead-acid battery pack according to claim 2 is characterized in that: The support assembly comprises corner support blocks (9) arranged at the four corners of the bottom of the bandage net (7), and the corner support blocks (9) are connected to the bandage net (7) via slots (10) provided thereon.

4. The distributed online monitoring device for lead-acid battery pack according to claim 3 is characterized in that: The corner support block (9) is provided with a double-sided sticker for bonding to the lead-acid battery.

5. The distributed online monitoring device for lead-acid battery pack according to claim 3 is characterized in that: The buckle (8) is a Velcro.

6. The distributed online monitoring device for lead-acid battery pack according to claim 3 is characterized in that: A rubber suction cup (11) is provided below the corner support block (9).

7. The distributed online monitoring device for lead-acid batteries according to any one of claims 2 to 6, characterized in that: The temperature measurement module (4) comprises a pressing block (12), one side of the pressing block (12) being clamped to the bandage net (7) via a buckle (13), and the other side of the pressing block (12) being provided with a foam pad (14), the foam pad (14) being connected to a temperature sensor (15), and the temperature sensor (15) being connected to the wire net (6).

8. The distributed online monitoring device for lead-acid battery pack according to claim 7, characterized in that: The leakage monitoring module (5) comprises an arc-shaped cover (16) fixedly mounted on the lead-acid battery, the arc-shaped cover (16) being arranged in cooperation with the pole of the lead-acid battery, and two electrodes (17) being arranged in parallel at the opening of the arc-shaped cover (16), and both electrodes (17) being connected to the wire mesh (6).

9. The distributed online monitoring device for lead-acid battery pack according to claim 8, characterized in that: The wire net (6) comprises cables respectively connecting the electrodes (17) and the controller (1), and the temperature sensor (15) and the controller (1), and a C-shaped buckle (18) for limiting the movement of the cables is provided on the bandage net (7).

10. The distributed online monitoring device for lead-acid batteries according to any one of claims 1 to 6, 8 and 9, characterized in that: The alarm (2) is an audible and visual alarm.

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