Lithium battery thermal runaway detector based on infrared optical principle

Abstract

The utility model provides a lithium battery thermal runaway detector based on an infrared optical principle, comprising a detection mechanism, two ends of the detection mechanism are respectively provided with a mounting rack, the mounting rack comprises a rack body, one end of the rack body is provided with a mounting assembly 1 connected with a lithium battery, and the other end of the rack body is provided with a mounting assembly 2 connected with the lithium battery; a mounting groove is formed in the side, facing the detection mechanism, of the mounting frame, the detection mechanism and the mounting groove are clamped and slide, a dismounting opening is formed in one end of the mounting groove, the detection mechanism comprises an adjusting column, a first mounting arm, a second mounting arm, a fixing disc and a mounting disc, and the first mounting arm is arranged at one end of the adjusting column. According to the utility model, the positions and the number of the detection mechanisms can be changed according to the temperature measurement requirement of the lithium battery through the plurality of detection mechanisms which are slidably assembled and disassembled at the inner side of the mounting frame, so that the detection mechanisms can conveniently and comprehensively detect the lithium battery by using an infrared thermometer, and the thermal runaway detection of the lithium battery by the detector is more comprehensive and accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and in particular to a lithium battery thermal runaway detector based on infrared optical principles. Background Art

[0002] Lithium battery is a common rechargeable battery widely used in electronic devices such as mobile phones, laptops, electric vehicles and power tools. During the use of lithium batteries, there is a risk of thermal runaway. Lithium battery thermal runaway means that the lithium battery generates excessive heat due to various reasons during use or charging, causing the battery temperature to rise rapidly, which may eventually lead to fire or explosion;

[0003] In order to reduce the occurrence of thermal runaway of lithium batteries, thermal runaway detectors will be installed on the outside of lithium batteries when they are in use. The thermal runaway detectors can monitor the temperature of lithium batteries in real time, so as to transmit information to lithium battery actuators or surrounding personnel when the temperature of lithium batteries is abnormal.

[0004] During the actual use of the above-mentioned thermal runaway detector, it was found that the temperature measuring position and number of the thermometer of the thermal runaway detector are usually fixed. After the thermal runaway detector is installed, it is difficult to change the temperature measuring position, which makes the thermal runaway detector's detection of lithium batteries not comprehensive and accurate enough.

[0005] In summary, there is a need for a thermal runaway detector that is convenient for comprehensive monitoring of lithium batteries. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a lithium battery thermal runaway detector based on infrared optical principles, which solves the problems mentioned in the background technology.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A lithium battery thermal runaway detector based on infrared optical principle, comprising a detection mechanism, both ends of the detection mechanism are provided with a mounting frame, the mounting frame comprises a frame body, one end of the frame body is provided with a mounting component 1 connected to the lithium battery, and the other end of the frame body is provided with a mounting component 2 connected to the lithium battery;

[0009] The mounting frame is provided with a mounting groove on the side facing the detection mechanism, the detection mechanism is engaged and slid in the mounting groove, a disassembly port is provided at one end of the mounting groove, the detection mechanism comprises an adjusting column, mounting arm one, mounting arm two, a fixed plate and a mounting plate, one end of the adjusting column is provided with mounting arm one, the other end of the adjusting column is provided with mounting arm two, the ends of mounting arm one and mounting arm two facing away from the adjusting column are both provided with a fixed plate, a mounting plate is provided in the middle of the side of the fixing plate, the mounting plate is engaged and slid in the mounting groove, and infrared thermometers for detecting lithium batteries are provided on the outer sides of mounting arm one and mounting arm two.

[0010] Furthermore, an adjusting rod is provided in the middle of both ends of the adjusting column, and the adjusting rod is threadedly connected to the first mounting arm and the second mounting arm.

[0011] Furthermore, the infrared thermometer is provided with multiple ones on the outer side of mounting arm one and mounting arm two, and the multiple infrared thermometers are rotatably hinged with mounting arm one and mounting arm two. A metal strip is provided on the side of the infrared thermometer, and the metal strip is fixedly connected with mounting arm one or mounting arm two.

[0012] Furthermore, a buzzer and a warning light are provided on the outer side of the mounting arm.

[0013] Furthermore, the second mounting assembly includes a second mounting block and a fixed block. The second mounting block is fixedly arranged on the outside of the lithium battery. A fixed groove is arranged on the side of the second mounting block. The fixed block is arranged at the end of the frame, and the fixed block is engaged and slidably engaged with the fixed groove.

[0014] Furthermore, the mounting component 1 includes a mounting block 1 and a mounting piece. The mounting block 1 is fixedly arranged on the outside of the lithium battery. A fixing groove 2 is provided on one side of the mounting block. A fixing hole is provided on the end of the frame connected to the mounting component 1. A mounting column is provided inside the fixing hole. The mounting column is threadedly connected to the fixing hole. A movable disk is provided at the end of the mounting column away from the frame. The movable disk is rotatably connected to the mounting column. A fixing piece is provided on the other side where the movable disk is connected to the mounting column. The fixing piece has a J-shaped structure, and the end of the fixing piece is engaged with the fixing groove 2.

[0015] The utility model provides a lithium battery thermal runaway detector based on infrared optical principle. Compared with the prior art, it has the following beneficial effects:

[0016] By sliding and disassembling multiple detection mechanisms on the inner side of the mounting frame, the position and number of the detection mechanisms can be changed according to the temperature measurement requirements of the lithium battery, making it easier for the detection mechanisms to use infrared thermometers to conduct comprehensive detection of the lithium battery, thereby making the detector's thermal runaway detection of the lithium battery more comprehensive and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a lithium battery thermal runaway detector based on infrared optical principle of the utility model is shown;

[0019] Figure 2A schematic diagram showing the connection between the mounting bracket and the lithium battery of the utility model is shown;

[0020] Figure 3 A schematic structural diagram of the mounting frame of the utility model is shown;

[0021] Figure 4 A distribution diagram of the detection mechanism of the utility model is shown;

[0022] Figure 5 The schematic diagram of the structure of the detection mechanism of the utility model is shown;

[0023] Figure 6 The utility model is shown Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 7 The utility model is shown Figure 2 The enlarged structural diagram at B in the middle;

[0025] As shown in the figure: 1. Mounting frame; 11. Frame; 12. Fixing hole; 13. Mounting slot; 2. Mounting component one; 21. Mounting block one; 22. Mounting column; 23. Movable disk; 24. Fixing piece; 3. Mounting component two; 31. Mounting block two; 32. Fixing block; 4. Detection mechanism; 41. Adjusting column; 411. Adjusting rod; 42. Mounting arm one; 43. Mounting arm two; 44. Fixing disk; 45. Mounting disk; 46. Infrared thermometer; 47. Buzzer; 48. Warning light; 49. Metal strip; 5. Lithium battery. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0027] Embodiment 1

[0028] In order to solve the technical problems in the background technology, a lithium battery thermal runaway detector based on infrared optical principle is provided as follows:

[0029] Combination Figure 1-Figure 5 As shown, the utility model provides a lithium battery thermal runaway detector based on infrared optical principle, including a detection mechanism 4, both ends of the detection mechanism 4 are provided with a mounting frame 1, the mounting frame 1 includes a frame body 11, one end of the frame body 11 is provided with a mounting component 2 connected to the lithium battery 5, and the other end of the frame body 11 is provided with a mounting component 2 3 connected to the lithium battery 5;

[0030] A mounting groove 13 is provided on the side of the mounting frame 1 facing the detection mechanism 4. The detection mechanism 4 is engaged and slidably engaged with the mounting groove 13. A disassembly port is provided at one end of the mounting groove 13. The detection mechanism 4 comprises an adjusting column 41, an installing arm 1 42, an installing arm 2 43, a fixing plate 44 and a fixing plate 45. A mounting arm 1 42 is provided at one end of the adjusting column 41, and an installing arm 2 43 is provided at the other end of the adjusting column 41. A fixing plate 44 is provided at one end of the installing arm 1 42 and the installing arm 2 43 away from the adjusting column 41. A fixing plate 44 is provided at the middle part of the side of the fixing plate 44. The installing plate 45 is engaged and slidably engaged with the mounting groove 13. An infrared thermometer 46 for detecting the lithium battery 5 is provided on the outer side of the installing arm 1 42 and the installing arm 2 43. The infrared thermometer 46 can generate thermal imaging by capturing the infrared radiation emitted by the lithium battery 5, thereby realizing non-contact monitoring of the surface temperature of the lithium battery 5.

[0031] By engaging and sliding the detection mechanism 4 with the mounting groove 13, the detection mechanism 4 can be moved along the path of the mounting groove 13 to change the position of the detection mechanism 4 detecting the lithium battery 5; the disassembly and assembly opening on the top surface of the mounting groove 13 is convenient for adding or removing the detection mechanism 4, and further convenient for changing the number of the detection mechanism 4 according to the demand for the lithium battery 5;

[0032] In this embodiment, an adjusting rod 411 is provided in the middle of both ends of the adjusting column 41, and the adjusting rod 411 is threadedly connected with the mounting arm 1 42 and the mounting arm 2 43. When the detection mechanism 4 slides in the mounting groove 13 to change its position, the adjusting column 41 can be rotated, and the mounting arm 1 42 and the mounting arm 2 43 are threadedly connected to each other, so that the mounting arm 1 42 and the mounting arm 2 43 move outward. At this time, the mounting arm 1 42 and the mounting arm 2 43 can make the fixing plate 44 squeeze the frame 11, so as to achieve the purpose of fixing the position of the detection mechanism 4.

[0033] In this embodiment, a plurality of infrared thermometers 46 are provided on the outside of the mounting arm 1 42 and the mounting arm 2 43, and the plurality of infrared thermometers 46 are rotatably hinged with the mounting arm 1 42 and the mounting arm 2 43. A metal strip 49 is provided on the side of the infrared thermometer 46, and the metal strip 49 is fixedly connected with the mounting arm 1 42 or the mounting arm 2 43. When the infrared thermometer 46 detects the lithium battery 5, the temperature measuring area of ​​the infrared thermometer 46 can be changed through the rotatable hinge between the infrared thermometer 46 and the mounting arm 1 42 and the mounting arm 2 43, so that the detector can detect the lithium battery 5 more comprehensively; the setting of the metal strip 49 can fix the position of the infrared thermometer 46 after the infrared thermometer 46 rotates;

[0034] As an improvement of the above solution, a buzzer 47 and a warning light 48 are provided on the outer side of the mounting arm 1 42, and the buzzer 47 and the warning light 48 can sound an alarm when the detector detects an abnormality in the lithium battery 5;

[0035] The implementation principle of the first embodiment is as follows: when the lithium battery 5 is in use, the infrared thermometer 46 in the detection mechanism 4 captures the infrared radiation emitted by the lithium battery 5 to generate thermal imaging, thereby achieving the purpose of monitoring the temperature change of the lithium battery 5. Before the detector is used, multiple detection mechanisms 4 can be installed on the inner side of the mounting frame 1 according to the temperature measurement requirements of the lithium battery 5. At the same time, the detection mechanism 4 can slide in the mounting groove 13 to change the detection position, thereby facilitating the detector to more comprehensively detect thermal runaway of the lithium battery 5.

[0036] Embodiment 2

[0037] like Figure 1-Figure 7 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0038] In order to facilitate the disassembly and assembly of the detector outside the lithium battery 5, the present embodiment provides the following design:

[0039] The second mounting assembly 3 includes a second mounting block 31 and a fixing block 32. The second mounting block 31 is fixedly arranged on the outside of the lithium battery 5. A fixing groove 1 is arranged on the side of the second mounting block 31. The fixing block 32 is arranged at the end of the frame 11. The fixing block 32 is engaged and slid with the fixing groove 1. The fixing block 32 in the second mounting assembly 3 can be engaged with the fixing groove 1 to fix one end of the mounting frame 1 on the outside of the lithium battery 5.

[0040] As an improvement of the above scheme, the mounting assembly 2 includes a mounting block 21 and a mounting member. The mounting block 21 is fixedly arranged on the outside of the lithium battery 5. A fixing groove 2 is provided on one side of the mounting block 21. A fixing hole 12 is provided on the end of the frame 11 connected to the mounting assembly 2. A mounting column 22 is provided inside the fixing hole 12. The mounting column 22 is threadedly connected to the fixing hole 12. A movable disk 23 is provided on the end of the mounting column 22 away from the frame 11. The movable disk 23 is rotatably connected to the mounting column 22. A fixing member 24 is provided on the other side where the movable disk 23 is connected to the mounting column 22. The fixing member 24 has a J-shaped structure, and the end of the fixing member 24 is engaged with the fixing groove 2.

[0041] Under the threaded connection between the mounting post 22 and the fixing hole 12, the position of the fixing member 24 and the second fixing groove can be changed. When the fixing member 24 contacts the second fixing groove, the mounting frame 1 can be fixed to the outside of the lithium battery 5. When the fixing member 24 is separated from the second fixing groove under the rotation of the mounting post 22, the mounting frame 1 together with the detection mechanism 4 can be removed from the outside of the lithium battery 5.

[0042] The implementation principle of the second embodiment is as follows: when installing the detector, the fixing block 32 at the bottom of the mounting frame 1 is engaged with the fixing groove 1 in the mounting block 2 31 outside the lithium battery 5. At this time, the fixing piece 24 at the other end of the mounting frame 1 will contact the mounting block 1 21. Then the mounting column 22 is rotated. Under the threaded connection between the mounting column 22 and the fixing hole 12, the mounting piece will be inserted into the fixing groove 2 on the side of the mounting block 1 21. When removing the detector, the mounting column 22 is rotated in the opposite direction to separate the mounting piece from the mounting block 1 21. At this time, the detector can be pushed to be separated from the outside of the lithium battery 5, thereby making the disassembly and assembly of the detector more convenient, which is conducive to the convenient use of the detector.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lithium battery thermal runaway detector based on infrared optical principles, characterized in that: It comprises a detection mechanism (4), both ends of the detection mechanism (4) are provided with a mounting frame (1), the mounting frame (1) comprises a frame body (11), one end of the frame body (11) is provided with a mounting component 1 (2) connected to a lithium battery (5), and the other end of the frame body (11) is provided with a mounting component 2 (3) connected to the lithium battery (5); The mounting frame (1) is provided with a mounting groove (13) on one side facing the detection mechanism (4). The detection mechanism (4) is engaged and slidably engaged with the mounting groove (13). A disassembly opening is provided at one end of the mounting groove (13). The detection mechanism (4) comprises an adjustment column (41), a mounting arm 1 (42), a mounting arm 2 (43), a fixing plate (44) and a mounting plate (45). The adjustment column (41) is provided with a mounting arm 1 (42) at one end, and a mounting arm 2 (43) is provided at the other end of the adjustment column (41). A fixing plate (44) is provided at one end of the mounting arm 1 (42) and the mounting arm 2 (43) away from the adjustment column (41). A mounting plate (45) is provided at the middle part of the side of the fixing plate (44). The mounting plate (45) is engaged and slidably engaged with the mounting groove (13). An infrared thermometer (46) for detecting the lithium battery (5) is provided at the outer side of the mounting arm 1 (42) and the mounting arm 2 (43).

2. The lithium battery thermal runaway detector based on infrared optical principle according to claim 1, characterized in that: An adjusting rod (411) is provided in the middle of both ends of the adjusting column (41), and the adjusting rod (411) is threadedly connected to the first mounting arm (42) and the second mounting arm (43).

3. The lithium battery thermal runaway detector based on infrared optical principle according to claim 2, characterized in that: The infrared thermometer (46) is provided with a plurality of them on the outside of the first mounting arm (42) and the second mounting arm (43), and the plurality of infrared thermometers (46) are all rotatably hinged with the first mounting arm (42) and the second mounting arm (43). A metal strip (49) is provided on the side of the infrared thermometer (46), and the metal strip (49) is fixedly connected with the first mounting arm (42) or the second mounting arm (43).

4. The lithium battery thermal runaway detector based on infrared optical principle according to claim 3 is characterized in that: A buzzer (47) and a warning light (48) are provided on the outer side of the mounting arm 1 (42).

5. The lithium battery thermal runaway detector based on infrared optical principle according to claim 1, characterized in that: The second mounting assembly (3) comprises a second mounting block (31) and a fixing block (32); the second mounting block (31) is fixedly arranged on the outside of the lithium battery (5); a fixing groove (1) is arranged on the side of the second mounting block (31); the fixing block (32) is arranged at the end of the frame (11); and the fixing block (32) is engaged and slidably engaged with the fixing groove (1).

6. The lithium battery thermal runaway detector based on infrared optical principle according to claim 5, characterized in that: The mounting assembly (2) comprises a mounting block (21) and a mounting member. The mounting block (21) is fixedly arranged on the outside of the lithium battery (5). A fixing groove (2) is provided on one side of the mounting block (21). A fixing hole (12) is provided on the end of the frame (11) connected to the mounting assembly (2). A mounting column (22) is provided inside the fixing hole (12). The mounting column (22) is threadedly connected to the fixing hole (12). A movable disk (23) is provided on the end of the mounting column (22) away from the frame (11). The movable disk (23) is rotatably connected to the mounting column (22). A fixing member (24) is provided on the other side of the movable disk (23) connected to the mounting column (22). The fixing member (24) is in a J-shaped structure. The end of the fixing member (24) is snap-connected to the fixing groove (2).

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