Thermocouple detection device for energy storage battery

Abstract

The utility model relates to the field of energy storage batteries, and discloses a thermocouple detection device for an energy storage battery. The plurality of batteries are arranged in the shell and are distributed in a linear array; the plurality of first measuring ends are arranged in the shell, and the plurality of first measuring ends are respectively in contact with the outer walls of the plurality of batteries; and the plurality of second measuring ends are arranged in the shell, and the second measuring ends are arranged between two adjacent batteries. According to the utility model, the plurality of first measuring ends and the plurality of second measuring ends are designed to respectively cover the outer wall of the battery pack and the internal area between the batteries, so that the monitoring range is obviously expanded, the first measuring ends can directly measure the temperature of the outer walls of the batteries, and the second measuring ends can penetrate into the battery pack; temperature monitoring is carried out on gaps and contact surfaces between the batteries, multi-point and all-around temperature detection is achieved, and safety risks such as battery thermal runaway and fire disasters are avoided.

Description

Technical Field

[0001] This utility model relates to the field of energy storage batteries, and in particular to a thermocouple detection device for energy storage batteries. Background Technology

[0002] Thermocouple testing equipment for energy storage batteries is an important tool specifically designed for measuring and monitoring the temperature of energy storage batteries. Thermocouple testing equipment operates based on the thermoelectric effect or Seebeck effect. When two different metals or semiconductors are connected to form a closed circuit, and the two connection points are at different temperatures, an electromotive force (EMF) is generated due to the temperature difference. By measuring this EMF, the temperature value can be calculated.

[0003] Temperature is one of the most important factors affecting the performance, lifespan, and safety of energy storage batteries during operation. Therefore, accurate monitoring of the temperature of energy storage batteries is particularly important.

[0004] Existing thermocouple testing equipment for energy storage batteries has a small monitoring range and limited testing points. It can usually only measure temperature at one or a few fixed locations and can only cover a single area on the surface of the battery pack. It cannot fully reflect the temperature distribution inside the battery pack, resulting in the inability to detect temperature anomalies inside the battery pack in a timely manner, which increases the risk of battery thermal runaway and fire. Utility Model Content

[0005] To solve the problems mentioned above, this utility model is implemented through the following technical solution.

[0006] A thermocouple detection device for energy storage batteries includes: a housing; a plurality of batteries installed inside the housing in a linear array; a plurality of first measuring ends installed inside the housing, each of the first measuring ends contacting the outer wall of the plurality of batteries; and a plurality of second measuring ends installed inside the housing, each of the second measuring ends being installed between two adjacent batteries.

[0007] The housing includes a data acquisition unit installed inside the housing, and several first measurement terminals and several second measurement terminals connected to the data acquisition unit.

[0008] The first measuring end includes a first conductor and a second conductor, the first conductor is connected to the second conductor, the outer wall of the battery is in contact with the first conductor and the second conductor, and the first conductor and the second conductor are connected to the data acquisition device through a first connector.

[0009] The second measuring end includes a third conductor and a fourth conductor, which are connected together and connected to the data acquisition unit via a second connector.

[0010] The housing includes: a partition, which is installed inside the housing, and a data acquisition unit installed at the bottom of the partition.

[0011] The housing further includes: a cover plate installed on the top of the housing; a bottom plate installed on the bottom of the housing; a battery cell protection board installed inside the housing, and the battery is connected to the battery cell protection board; two insulating covers installed on the inner walls on both sides of the housing.

[0012] The third conductor and the fourth conductor are rectangular.

[0013] The first conductor and the second conductor are in a "U" shape.

[0014] The utility model provides a thermocouple detection device for energy storage batteries. Compared with the prior art, it has the following beneficial effects: by designing multiple first measurement ends and second measurement ends to respectively cover the outer wall of the battery pack and the internal area between the batteries, the monitoring range is significantly expanded. The first measurement end can directly measure the temperature of the battery outer wall, while the second measurement end can penetrate into the interior of the battery pack to monitor the temperature of the gaps and contact surfaces between the batteries, achieving multi-point and full-range temperature detection; multi-point monitoring can capture the subtle changes in the internal temperature distribution of the battery pack, timely detect temperature anomalies, reduce the risk of battery thermal runaway and fire. Through real-time monitoring and data analysis, potential overheating or temperature imbalance problems can be timely discovered and processed, avoiding safety risks such as battery thermal runaway and fire. Brief Description of the Drawings

[0015] Figure 1 It is a schematic three-dimensional structure diagram proposed by the utility model.

[0016] Figure 2 It is a schematic cross-sectional structure diagram of the housing proposed by the utility model.

[0017] Figure 3 It is a schematic structure diagram of the battery, data collector, first measurement end and second measurement end proposed by the utility model.

[0018] Figure 4 It is a schematic structure diagram of the first measurement end and the second measurement end proposed by the utility model.

[0019] Figure 5 It is a schematic structure diagram of the first measurement end proposed by the utility model.

[0020] Figure 6 It is a schematic structure diagram of the second measurement end proposed by the utility model.

[0021] The reference numerals in the drawings are:

[0022] 1. Housing; 101. Cover plate; 102. Bottom plate; 103. Partition board;

[0023] 2. Battery;

[0024] 3. Battery cell protection board;

[0025] 4. Insulating cover;

[0026] 5. Data acquisition device;

[0027] 6. First measuring end; 601. First conductor; 602. Second conductor; 603. First connector;

[0028] 7. Second measuring end; 701. Third conductor; 702. Fourth conductor; 703. Second connector. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0030] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0031] Reference Figures 1-6 A thermocouple detection device for energy storage batteries includes: a housing 1; a plurality of batteries 2 installed inside the housing 1 in a linear array; a plurality of first measuring ends 6 installed inside the housing 1, the plurality of first measuring ends 6 respectively contacting the outer wall of the plurality of batteries 2, the first measuring ends 6 being able to directly measure the temperature of the outer wall of the battery 2; and a plurality of second measuring ends 7 installed inside the housing 1, the second measuring ends 7 being installed between two adjacent batteries 2, the second measuring ends 7 being able to monitor the temperature of the internal area between two batteries 2.

[0032] The housing 1 includes a data acquisition unit 5, which is installed inside the housing 1. Several first measuring terminals 6 and several second measuring terminals 7 are connected to the data acquisition unit 5. The data acquisition unit 5 is responsible for receiving and processing temperature data from the first measuring terminals 6 and the second measuring terminals 7, converting this information into digital signals that can be analyzed and processed, providing a reliable basis for the monitoring and management of the battery 2. The data acquisition unit 5 adopts the FL34970B multi-channel data acquisition unit 5, which supports eight thermocouple types: T, J, K, E, R, S, N, and B, to meet the measurement needs of different temperatures. The device also has multiple measurement functions such as voltage, current, and resistance, and is suitable for various application scenarios.

[0033] The first measurement end 6 includes a first conductor 601 and a second conductor 602. The first conductor 601 is connected to the second conductor 602. The outer wall of the battery 2 contacts the first conductor 601 and the second conductor 602. The first conductor 601 and the second conductor 602 are connected to the data collector 5 through a first connector 603. The first measurement end 6 is a thermocouple structure composed of the first conductor 601 and the second conductor 602, which can detect the temperature of different surfaces of the battery 2.

[0034] The second measurement end 7 includes a third conductor 701 and a fourth conductor 702. The third conductor 701 is connected to the fourth conductor 702. The third conductor 701 and the fourth conductor 702 are connected to the data collector 5 through a second connector 703. The second measurement end 7 is a thermocouple structure composed of the third conductor 701 and the fourth conductor 702, which can detect the temperature inside between the batteries 2.

[0035] The outer shell 1 includes: a partition 103 installed inside the outer shell 1, the data collector 5 is installed at the bottom of the partition 103. The partition 103 reasonably divides the internal space of the outer shell 1, providing a stable installation platform for electronic components such as the data collector 5; a cover plate 101 installed on the top of the outer shell 1; a bottom plate 102 installed on the bottom of the outer shell 1; a cell protection board 3 installed inside the outer shell 1, and the battery 2 is connected to the cell protection board 3; two insulating covers 4 installed on the inner walls on both sides. The insulating covers 4 can effectively isolate the battery 2 from the external environment, preventing the battery 2 from being affected by adverse factors such as moisture and corrosion.

[0036] The third conductor 701 and the fourth conductor 702 are rectangular. The rectangular design of the third conductor 701 and the fourth conductor 702 is convenient for arranging between the batteries 2, while maintaining a sufficient contact area to ensure the accuracy of measurement and is also easy to connect to the data collector 5.

[0037] The first conductor 601 and the second conductor 602 are in a "U" shape. The "U" shape design of the first conductor 601 and the second conductor 602 can better fit the outer wall of the battery 2, improving the accuracy and stability of temperature measurement.

[0038] During use, several batteries 2 are installed inside the casing 1 in a linear array, ensuring that the batteries 2 are correctly connected to the cell protection board 3. A partition 103 is installed to rationally divide the internal space of the casing 1, and the data acquisition unit 5 is installed at the bottom of the partition 103, providing a stable mounting platform for the data acquisition unit 5. The first measuring end 6 and the second measuring end 7 are installed. The first measuring end 6 contacts the outer wall of the battery 2 through a U-shaped first conductor 601 and second conductor 602. The second measuring end 7 is installed between two adjacent batteries 2 through rectangular third conductor 701 and fourth conductor 702. All measuring ends are connected to the data acquisition unit 5, ensuring that the first connector 603 and the second connector 703 are correctly connected to the corresponding interfaces of the data acquisition unit 5. The cover plate 101 and the base plate 102 are installed to seal the casing 1, ensuring the safety and stability of the internal components. The data acquisition unit 5 begins operation, receiving data from the outer wall of the battery 2 and the internal area between the batteries 2 through the first measuring end 6 and the second measuring end 7. The temperature data of the domain is obtained by the first measuring end 6 using the thermocouple principle to convert the temperature of the outer wall of the battery 2 into an electrical signal, which is then transmitted to the data acquisition unit 5 through the first connector 603. Similarly, the second measuring end 7 uses the thermocouple principle to convert the temperature of the internal area between the batteries 2 into an electrical signal, which is then transmitted to the data acquisition unit 5 through the second connector 703. After receiving these electrical signals, the data acquisition unit 5 performs analog-to-digital conversion to convert the temperature data into a digital signal that can be analyzed and processed. The data acquisition unit 5 stores the collected temperature data in its internal memory or transmits it to an external computer or monitoring system through a communication interface.

[0039] In summary, compared with existing technologies, it has the following beneficial effects:

[0040] By designing multiple first measuring ends 6 and second measuring ends 7, respectively covering the outer wall of the battery pack and the internal area between the batteries 2, the monitoring range is significantly expanded. The first measuring end 6 can directly measure the temperature of the outer wall of the battery 2, while the second measuring end 7 can penetrate deep into the battery pack to monitor the temperature of the gaps and contact surfaces between the batteries 2, thus realizing multi-point, all-round temperature detection.

[0041] Multi-point monitoring can capture subtle changes in the internal temperature distribution of the battery pack, detect temperature anomalies in a timely manner, and reduce the risk of thermal runaway and fire in battery 2. Through real-time monitoring and data analysis, potential overheating or temperature imbalance problems can be detected and dealt with in a timely manner, avoiding safety risks such as thermal runaway and fire in battery 2.

[0042] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. A thermocouple detection device for energy storage batteries, characterized in that, Comprising: A housing (1); A plurality of batteries (2), installed inside the housing (1) and distributed in a linear array; A plurality of first measurement terminals (6), installed inside the housing (1), and the plurality of first measurement terminals (6) are respectively in contact with the outer walls of the plurality of batteries (2); A plurality of second measurement terminals (7), installed inside the housing (1), and the second measurement terminals (7) are installed between two adjacent batteries (2).

2. The thermocouple detection device for energy storage batteries according to claim 1, characterized in that, The housing (1) includes: A data collector (5), installed inside the housing (1), and the plurality of first measurement terminals (6) and the plurality of second measurement terminals (7) are both connected to the data collector (5).

3. The thermocouple detection device for energy storage batteries according to claim 2, characterized in that, The first measurement terminal (6) includes a first conductor (601) and a second conductor (602), the first conductor (601) is connected to the second conductor (602), the outer wall of the battery (2) is in contact with the first conductor (601) and the second conductor (602), and the first conductor (601) and the second conductor (602) are connected to the data collector (5) through a first connector (603).

4. The thermocouple detection device for energy storage batteries according to claim 2, characterized in that, The second measurement terminal (7) includes a third conductor (701) and a fourth conductor (702), the third conductor (701) is connected to the fourth conductor (702), and the third conductor (701) and the fourth conductor (702) are connected to the data collector (5) through a second connector (703).

5. The thermocouple detection device for energy storage batteries according to claim 2, characterized in that, The housing (1) includes: A partition (103), installed inside the housing (1), and the data collector (5) is installed at the bottom of the partition (103).

6. The thermocouple detection device for energy storage batteries according to claim 1, characterized in that, The housing (1) further includes: A cover plate (101), installed on the top of the housing (1); A bottom plate (102), installed on the bottom of the housing (1); A battery core protection plate (3), installed inside the housing (1), and the battery (2) is connected to the battery core protection plate (3); Two insulating covers (4), installed on the inner walls of both sides of the housing (1).

7. The thermocouple detection device for energy storage batteries according to claim 4, characterized in that, The third conductor (701) and the fourth conductor (702) are rectangular.

8. The thermocouple detection device for energy storage batteries according to claim 3, characterized in that, The first conductor (601) and the second conductor (602) are in a "U" shape.

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