Battery for electrolyte liquid level detection and electric equipment

Abstract

The utility model discloses a battery for detecting the liquid level of an electrolyte and electric equipment. The battery for detecting the liquid level of the electrolyte comprises a shell, a battery roll core and a cover plate, the battery further comprises a liquid level monitoring module, a signal processing module and a remote control module, the liquid level monitoring module comprises a liquid level sensor and a first wire, the liquid level sensor is in a long strip shape, is immersed into the electrolyte and is vertically arranged at an edge crack of two adjacent battery roll cores, the signal processing module comprises a chip and a second wire, the chip is embedded in the cover plate, and the second wire is connected with the chip. The first wire is led out from the top of the liquid level sensor and penetrates through the cover plate to be connected to the chip, and the second wire is led out from the chip and is connected to the remote control module. According to the utility model, the liquid level sensor and the information processing chip are additionally arranged on the battery roll core and are linked with the remote control module, so that the consumption condition of electrolyte is monitored in real time, an abnormal battery is sensed in time, and the safety performance of the battery roll core is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically to a battery and electrical equipment for detecting electrolyte level. Background Technology

[0002] Electrolyte is a crucial component of a battery. It serves as the bridge connecting the positive and negative electrodes and the medium through which ions move between them. It provides the necessary ionic conductivity for the battery's chemical reactions and the essential physicochemical conditions for energy conversion. Analyzing the state of the electrolyte reveals the internal workings of the battery cell. For example, it shows the actual electrolyte consumption during charge and discharge processes under specific battery conditions, including formation, capacity testing, and operational status. It also allows for the timely detection of battery anomalies. For instance, high water content can lead to significant electrolyte consumption and decomposition, resulting in battery failure, or thermal runaway, where large amounts of electrolyte are consumed. Furthermore, studying electrolyte level changes allows for the investigation of electrolyte absorption and wetting by electrode materials under the same manufacturing processes, as well as the consistency between battery cells. Therefore, studying electrolyte level changes within a battery is of great significance.

[0003] In existing technologies, there is a lack of effective detection methods for electrolyte levels and consumption during battery use. In particular, destructive disassembly analysis often cannot continuously track electrolyte consumption throughout the entire battery lifespan. This may lead to the overlooking of abnormalities during battery operation, resulting in serious consequences or even safety hazards. Utility Model Content

[0004] This utility model provides a battery and electrical device for detecting electrolyte level with better safety performance, which can solve at least one of the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A battery for detecting electrolyte level includes a housing, a battery core, and a cover plate. The housing has an open end, forming a receiving space for accommodating the battery core. The battery core is a plurality of cells arranged in the same direction and attached to each other. The cover plate is welded to the housing to seal the housing.

[0007] It also includes a liquid level monitoring module, a signal processing module, and a remote control module. The liquid level monitoring module includes a liquid level sensor and a first wire. The liquid level sensor is elongated and immersed in the electrolyte, and is vertically placed in the edge gap between two adjacent battery cores. The signal processing module includes a chip and a second wire. The chip is embedded in the cover plate. The first wire is led out from the top of the liquid level sensor, passes through the cover plate, and is connected to the chip. The second wire is led out from the chip and is connected to the remote control module.

[0008] Furthermore, the edge gaps on both sides of the two adjacent battery cores are each provided with R-angle gaps, and the liquid level sensor is installed vertically along the height direction of the R-angle gaps on one or both sides.

[0009] Furthermore, the liquid level sensor has multiple monitoring points evenly spaced along its length, and the liquid level signals collected by each monitoring point are transmitted to the chip via the first wire.

[0010] Furthermore, a wiring groove is provided at the bottom of the cover plate, and the first wire runs along the wiring groove.

[0011] Furthermore, the cover plate has a groove, the chip is fitted into the groove, and the top and bottom are covered with an aluminum-plastic film.

[0012] Furthermore, the remote control module is external to the battery, and the second wire extends out of the battery casing and connects to the remote control module.

[0013] Furthermore, the signal processing module also includes an early warning unit, which is connected to the remote control module via the second wire.

[0014] An electrical device includes a battery for detecting the electrolyte level.

[0015] The beneficial effects of this utility model are reflected in:

[0016] 1. In this utility model, by adding a liquid level sensor and an information processing chip to the battery core and linking them with a remote control module, the consumption of electrolyte can be monitored in real time to confirm the consistency of battery immersion. On the other hand, abnormal batteries can be detected in time, and early warnings and handling can be carried out, ultimately improving the safety performance of the battery core.

[0017] 2. In this utility model, the additional modules, such as the liquid level monitoring module or the signal processing module, are mostly installed in a hidden manner, either sandwiched between adjacent battery cores or embedded inside the cover plate. This can protect each module from damage and does not occupy additional internal installation space, resulting in a reasonable structural design. Attached Figure Description

[0018] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0020] Figure 2This is a schematic diagram of the overall structure of the battery core after it has been extracted according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall structure after removing the shell according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the assembly of the cover plate and the liquid level monitoring module according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the assembly of the cover plate and the signal processing module according to an embodiment of the present invention.

[0024] The components in the attached diagram are labeled as follows: 1. Battery winding core; 2. Rounded corner gap; 3. Cover plate; 301. Wiring groove; 302. Groove; 4. Liquid level monitoring module; 5. Liquid level sensor; 501. Monitoring point; 6. First wire; 7. Signal processing module; 8. Chip; 9. Second wire; 10. Remote control module. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Additionally, "multiple" refers to two or more.

[0027] It should be noted that those skilled in the art will understand that all or part of the technical features implemented in the embodiments of this utility model can be implemented entirely or partially through software, hardware, or any combination thereof. When implemented in hardware, components such as liquid level sensors, chips, and first / second wires can be implemented entirely or partially by purchasing existing standard parts or modified parts. When implemented in software, components such as remote control modules can be implemented entirely or partially by using existing computer program products. Therefore, this application does not elaborate on the specific functional principles or usage logic of the above-mentioned prior art, which are assumed to be common knowledge known to those skilled in the art.

[0028] See Figures 1-3 This utility model provides a battery for detecting electrolyte level, including a housing, a battery core 1 and a cover plate 3. The housing has an open end, forming a receiving space for accommodating the battery core 1. There are multiple battery cores 1, which are arranged in the same direction and attached to each other. The cover plate 3 is welded to the housing to close the housing.

[0029] It also includes a liquid level monitoring module 4, a signal processing module 7, and a remote control module 10. The liquid level monitoring module 4 includes a liquid level sensor 5 and a first wire 6. The liquid level sensor 5 is elongated and immersed in the electrolyte, and is vertically placed in the edge gap between two adjacent battery cores 1. The signal processing module 7 includes a chip 8 and a second wire 9. The chip 8 is embedded in the cover plate 3. The first wire 6 is led out from the top of the liquid level sensor 5 and passes through the cover plate 3 to connect to the chip 8. The second wire 9 is led out from the chip 8 and connected to the remote control module 10.

[0030] In this invention, by adding a liquid level sensor and an information processing chip to the battery core and linking them with a remote control module, the consumption of electrolyte can be monitored in real time to confirm the consistency of battery immersion. On the other hand, abnormal batteries can be detected in time, and early warnings and handling can be carried out, ultimately improving the safety performance of the battery core.

[0031] See Figure 3 In this embodiment, the edge gaps on both sides of the two adjacent battery cores 1 are each provided with a radius (R) gap 2. The liquid level sensor 5 is vertically installed along the height direction of one or both sides of the radius (R) gap 2. This design allows the liquid level sensor 5 to be concealed within the radius (R) gap 2, protecting it from damage and avoiding additional installation space within the battery. The structure is rationally designed. In practical use, the liquid level sensor 5 can be installed on one or both sides of the battery core 1 as needed to improve detection accuracy.

[0032] See Figures 3-4In this embodiment, the liquid level sensor 5 has multiple monitoring points 501 evenly spaced along its length. The liquid level signals collected by each monitoring point 501 are transmitted to the chip 8 via the first wire 6. With this design, the liquid level sensor 5 is a long strip, vertically inserted into the battery and immersed in the electrolyte. Each monitoring point 501 is used to measure the liquid level at different heights in real time.

[0033] In this application, considering both future usage costs and the interference of sealing materials on measurement signals, no additional sealing structure is added outside the liquid level sensor 5 for the time being. The existing sealing protection layer of the liquid level sensor 5 itself can be used. However, in the subsequent optimization stage, an additional sealing structure can still be added outside the liquid level sensor 5. The specific form of the sealing structure is not limited and all fall within the protection scope of this application.

[0034] It should be noted that the liquid level sensor 5 described in this application is a miniature sensor, which, as mentioned above, can be implemented by purchasing existing standard parts or modified parts, and there are no restrictions on its specific model.

[0035] See Figure 4 In this embodiment, a wiring groove 301 is provided at the bottom of the cover plate 3, and the first wire 6 runs along the wiring groove 301. With this design, the first wire 6 is hidden inside the cover plate 3, which can protect the first wire 6 from damage and does not occupy additional installation space inside the battery, resulting in a reasonable structural design.

[0036] See Figure 5 In this embodiment, the cover plate 3 has a groove 302, and the chip 8 is embedded in the groove 302, with both the top and bottom covered by an aluminum-plastic film. This design allows the chip 8 to be hidden within the cover plate 3, protecting it from damage without occupying additional installation space within the battery. The structure is rationally designed. The aluminum-plastic film is a widely used sealing material in the lithium battery industry, consisting of an aluminum layer and a PP layer. The PP layer melts at temperatures above 170 degrees Celsius and fuses with the cover plate 3 to achieve a sealing effect. The aluminum layer provides radiation protection and oxidation resistance, further enhancing the protection of the chip 8 and preventing corrosion from the electrolyte. Besides the aluminum-plastic film sealing method, plastic hot-melt sealing or other sealing methods can also be used; these are not listed in this embodiment.

[0037] It should be noted that the chip 8 described in this application is a digital chip for signal / data processing. As mentioned above, it can be implemented by purchasing existing standard parts or modified parts, and there are no restrictions on its specific model.

[0038] See Figure 3 and Figure 5 In this embodiment, the remote control module 10 is external to the battery, and the second wire 9 extends out of the battery casing and connects to the remote control module 10. With this design, the remote control module 10 receives and processes signals / data input via the second wire 9. Normally, the remote control module 10 is independently installed outside the battery, facilitating timely data checks by users or personnel. It is assumed that the length of the second wire 9 is sufficient to achieve long-distance signal transmission with the remote control module 10.

[0039] It should be noted that the remote control module 10 described in this application may use a BMS system / central control system or other systems, which will not be listed in this embodiment. A BMS (Battery Management System) is one of the core technologies in new energy vehicles and energy storage systems. This system is a complex hardware and software integration, mainly responsible for intelligent monitoring, control, and protection of the battery to ensure its safe, efficient, and reliable operation. As mentioned above, the remote control module 10 can be implemented using existing computer program products, and its working principle will not be elaborated upon further.

[0040] See Figure 3 In this embodiment, the signal processing module 7 further includes an early warning unit, which is connected to the remote control module 10 via the second wire 9. With this design, the chip 8 is pre-programmed with the battery's liquid level changes under normal operating conditions. Under the real-time acquisition by the liquid level monitoring module 4, by comparing the battery's liquid level under actual operating conditions, it can be determined whether there are any abnormalities inside the battery, i.e., whether it exceeds the corresponding set range limit. If the limit is exceeded, the early warning unit is triggered to send a feedback signal to the remote control module 10 to alert of the abnormality. The remote control module 10 then promptly performs operations such as power disconnection to stop the battery from operating and prevent safety accidents.

[0041] This utility model embodiment also provides an electrical device, including the battery for detecting electrolyte level.

[0042] The electrical device possesses all the technical features of the electrolyte level detection battery described in the previous embodiment. Accordingly, it can at least solve all the technical problems solved by the electrolyte level detection battery, and at least achieve all the technical effects achieved by the electrolyte level detection battery.

[0043] In summary, by adding a liquid level sensor and an information processing chip to the battery core and linking them with a remote control module, this invention can monitor the consumption of electrolyte in real time and confirm the consistency of battery immersion. Furthermore, it can detect abnormal batteries in a timely manner, providing early warnings and handling, ultimately improving the safety performance of the battery core. The additional modules, such as the liquid level monitoring module or the signal processing module, are mostly installed in a concealed manner, either sandwiched between adjacent battery cores or embedded inside the cover plate. This protects each module from damage and does not occupy additional internal installation space, resulting in a reasonable structural design.

[0044] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A battery for detecting electrolyte level, comprising a housing, a battery core (1) and a cover plate (3), wherein the housing has an open end and forms a receiving space for accommodating the battery core (1), wherein there are multiple battery cores (1) arranged in the same direction and attached to each other, and the cover plate (3) is welded to the housing to close the housing; Its features are, It also includes a liquid level monitoring module (4), a signal processing module (7), and a remote control module (10). The liquid level monitoring module (4) includes a liquid level sensor (5) and a first wire (6). The liquid level sensor (5) is long and strip-shaped, immersed in the electrolyte, and placed vertically at the edge gap of two adjacent battery cores (1). The signal processing module (7) includes a chip (8) and a second wire (9). The chip (8) is embedded in the cover plate (3). The first wire (6) is led out from the top of the liquid level sensor (5) and passes through the cover plate (3) to connect to the chip (8). The second wire (9) is led out from the chip (8) and connected to the remote control module (10).

2. The battery for electrolyte level detection as described in claim 1, characterized in that, The edge gaps on both sides of the two adjacent battery cores (1) are set with R-angle gaps (2), and the liquid level sensor (5) is installed vertically along the height direction of the R-angle gaps (2) on one or both sides.

3. The battery for electrolyte level detection as described in claim 1, characterized in that, The liquid level sensor (5) has multiple monitoring points (501) evenly spaced along its length. The liquid level signals collected by each monitoring point (501) are transmitted to the chip (8) via the first wire (6).

4. The battery for electrolyte level detection as described in claim 1, characterized in that, The bottom of the cover plate (3) is provided with a wiring groove (301), and the first wire (6) runs along the wiring groove (301).

5. The battery for electrolyte level detection as described in claim 1, characterized in that, The cover plate (3) has a groove (302) and the chip (8) is embedded in the groove (302), and the top and bottom are covered with aluminum-plastic film.

6. The battery for electrolyte level detection as described in claim 1, characterized in that, The remote control module (10) is external to the battery, and the second wire (9) extends out of the battery casing and connects to the remote control module (10).

7. The battery for electrolyte level detection as described in claim 1, characterized in that, The signal processing module (7) further includes an early warning unit, which is connected to the remote control module (10) via the second wire (9).

8. An electrical appliance, characterized in that, Includes a battery for detecting electrolyte level as described in any one of claims 1-7.

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