Lithium battery pack heating fault sensing device

Abstract

The utility model discloses a lithium battery pack heating fault induction device, which belongs to the technical field of lithium battery pack fault detection and comprises a detection box, an induction mechanism is arranged on the front surface of the detection box, and an induction position of the induction mechanism is positioned in the detection box. According to the heating fault sensing device for the lithium battery pack, electric push rods, positioning hoops, racks, gears, threaded rods, threaded sleeves and compression plates are arranged, and the two electric push rods are used for driving the positioning hoops to get close to each other, so that the purpose that the lithium battery pack can be positioned when the two positioning hoops get close to a certain position is achieved; the water surface of the cooling water rises due to the fact that the water surface of the cooling water rises, the device can compress the cooling water while positioning the lithium battery pack, the situation that the lithium battery pack needs to be manually taken for a long time for detection is avoided, and the water level height of the cooling water can make contact with the lithium battery pack; therefore, the lithium battery pack can receive corresponding heating induction.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery pack fault detection, in particular to a lithium battery pack heating fault sensing device. Background Art

[0002] With the promotion and application of pure electric vehicles, the application of high-power lithium batteries is also increasing. Lithium batteries are one of the most commonly used battery types in electric vehicles. They have the characteristics of high energy density and long cycle life. In order to ensure that the various functions of lithium batteries meet the quality requirements, it is necessary to use a thermal fault sensing device and use cooling water to detect its lithium battery pack. However, the existing lithium battery pack thermal fault sensing device is difficult to locate the lithium battery pack and it is difficult to compress the cooling water, resulting in the lithium battery pack needing to be manually picked up for a long time for detection, and the water level of the cooling water is difficult to contact the lithium battery pack, resulting in the lithium battery pack being difficult to receive the corresponding thermal induction. Utility Model Content

[0003] In order to overcome the above-mentioned defects, the utility model provides a lithium battery pack heating fault sensing device, which solves the problem that the existing lithium battery pack heating fault sensing device is difficult to locate the lithium battery pack and difficult to compress the cooling water, resulting in the lithium battery pack needing to be manually picked up for a long time for inspection, and the water level of the cooling water is difficult to contact the lithium battery pack, resulting in the lithium battery pack being difficult to receive corresponding heating induction.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery pack heating fault sensing device, comprising a detection box, a sensing mechanism is provided on the front of the detection box, the sensing point of the sensing mechanism is located in the detection box, connecting blocks are fixedly connected to the two sides above the detection box, two electric push rods are fixedly connected to the two connecting blocks, the other ends of the two electric push rods are fixedly connected to positioning clamps, and a connecting strip is fixedly connected to the outside of one of the electric push rods.

[0005] A rack is fixedly connected to the back of the connecting strip, a fixed block is fixedly connected to the top of the detection box, a bearing is clamped in the fixed block, a threaded rod is rotatably connected in the bearing, a threaded sleeve is externally threaded on the threaded rod, a compression plate is fixedly connected to the outside of the threaded sleeve, the compression plate is located in the detection box, and a gear is fixedly connected to the outside of the threaded rod.

[0006] As a further solution of the utility model: a telescopic rod is fixedly connected to the back side of the compression plate, and the other end of the telescopic rod is fixedly connected to the back side of the inner side of the detection box.

[0007] As a further solution of the utility model: a clamping groove is provided on the inner side of the positioning clamp, and a surrounding plate is fixedly connected to the top of the detection box.

[0008] As a further solution of the utility model: a liquid outlet is fixedly connected to the back of the detection box, and a valve is arranged in the liquid outlet.

[0009] As a further solution of the utility model: overlapping blocks are fixedly connected to both sides of the detection box, and bolts are connected to the internal threads of the overlapping blocks.

[0010] As a further solution of the utility model: a handle is fixedly connected to the top end of the bolt, and a stabilizing pad is fixedly connected to the bottom end of the bolt.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The lithium battery pack heating fault sensing device is provided with an electric push rod, a positioning clamp, a rack, a gear, a threaded rod, a threaded sleeve and a compression plate, and two electric push rods are used to drive the positioning clamps to approach each other, so that the lithium battery pack can be positioned when the two positioning clamps approach each other to a certain position, and one of the electric push rods can drive the rack to move to the right synchronously through the connecting bar during the process of driving the positioning clamp to move to the right, so that the gear can drive the threaded rod to rotate when the gear is engaged by the movement of the rack, so that the threaded sleeve matched with the thread of the threaded rod can drive the compression plate to compress the cooling water in the detection box, so that the water level of the cooling water can rise, and then this device can position the lithium battery pack and compress the cooling water at the same time, avoiding the need for manual long-term manual picking of the lithium battery pack for detection, and the water level of the cooling water can contact the lithium battery pack, so that the lithium battery pack can be subjected to corresponding heating induction.

[0013] 2. The lithium battery pack heating fault sensing device is provided with a telescopic rod, a compression plate, a threaded rod and a threaded sleeve. The telescopic rod enables the compression plate to have good stability when moving, thereby preventing the compression plate from accidentally rotating when moving by means of the threaded connection between the threaded sleeve and the threaded rod, thereby preventing the cooling water in the detection box from leaking to the other side of the compression plate and causing the water level of the cooling water to not rise.

[0014] 3. The lithium battery pack heating fault sensing device is provided with a liquid outlet, a valve and a detection box. The liquid outlet allows the cooling water in the detection box to be smoothly discharged after a long period of use, so as to facilitate the replacement of the cooling water for effective heating sensing of the lithium battery pack, and the valve enables the liquid outlet to have the function of opening or closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structural diagram of the rack and gear of the utility model;

[0017] Figure 3 It is a three-dimensional structural diagram of the liquid outlet and valve of the utility model;

[0018] In the figure: 1. detection box; 2. induction mechanism; 3. connection block; 4. electric push rod; 5. positioning clamp; 6. connection strip; 7. rack; 8. fixing block; 9. bearing; 10. threaded rod; 11. threaded sleeve; 12. compression plate; 13. gear; 14. telescopic rod; 15. slot; 16. liquid outlet; 17. valve; 18. overlap block; 19. bolt; 20. handle; 21. stabilizing pad; 22. enclosure. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] like Figure 1-3 As shown, the utility model provides a technical solution: a lithium battery pack heating fault sensing device, comprising a detection box 1, a liquid outlet 16 is fixedly connected to the back of the detection box 1, and a valve 17 is arranged in the liquid outlet 16. The liquid outlet 16 enables the cooling water in the detection box 1 to be discharged outwardly, which is convenient for replacing the cooling water to perform more effective heating sensing on the lithium battery pack, and the valve 17 enables the liquid outlet 16 to have the function of opening or closing, so as to prevent the cooling water in the detection box 1 from leaking through the liquid outlet 16;

[0021] The two sides of the detection box 1 are respectively fixedly connected with a lap block 18, and the lap block 18 is internally threaded with a bolt 19, and the top of the bolt 19 is fixedly connected with a turn handle 20, and the bottom of the bolt 19 is fixedly connected with a stabilizing pad 21, so that the bolt 19 can drive the stabilizing pad 21 to move downward smoothly by using the threaded fit between the lap plate, so that the friction provided by the stabilizing pad 21 when it moves downward to contact with the ground makes the detection box 1 have good stability, and the turn handle 20 makes it convenient for the staff to rotate the bolt 19;

[0022] A sensing mechanism 2 is provided on the front of the detection box 1. The sensing part of the sensing mechanism 2 is located inside the detection box 1. The sensing mechanism 2 enables the cooling water in the detection box 1 to sense the heat of the lithium battery pack and has a screen projection function, which is convenient for staff to observe.

[0023] The two sides above the detection box 1 are respectively fixedly connected with connection blocks 3, and the two connection blocks 3 are respectively fixedly connected with electric push rods 4, and the other ends of the two electric push rods 4 are respectively fixedly connected with positioning clamps 5, so that when the two electric push rods 4 drive the positioning clamps 5 to approach each other to a certain position, the lithium battery pack can be fixed, so that there is no need for people to manually take the lithium battery pack for a long time to perform heat induction work, which can effectively reduce labor consumption;

[0024] A slot 15 is provided on the inner side of the positioning clamp 5, and a panel 22 is fixedly connected to the top of the detection box 1. The slot 15 provides an embedding point when the lithium battery pack is fixed by the two positioning clamps 5, so that the lithium battery pack has better fixing stability. The panel 22 enables the detection box 1 to have a certain function of blocking the cooling water, preventing the cooling water from overflowing when it is compressed by the compression plate 12.

[0025] One of the electric push rods 4 is fixedly connected to a connecting bar 6 on the outside, and a rack 7 is fixedly connected to the back of the connecting bar 6. A fixing block 8 is fixedly connected to the top of the detection box 1. A bearing 9 is clamped in the fixing block 8. A threaded rod 10 is rotatably connected in the bearing 9. The threaded rod 10 is externally threadedly connected to a threaded sleeve 11. The threaded sleeve 11 is externally fixedly connected to a compression plate 12. The compression plate 12 is located in the detection box 1. The threaded rod 10 is externally fixedly connected to a gear 13, so that when the rack 7 moves to mesh with the gear 13, the gear 13 can drive the threaded rod 10 to rotate smoothly, so that the threaded sleeve 11 can drive the compression plate 12 to move forward when the threaded rod 10 rotates, so that the compression plate 12 can compress the cooling water in the detection box 1, so that the water level of the cooling water can contact the bottom of the lithium battery pack;

[0026] A telescopic rod 14 is fixedly connected to the back of the compression plate 12, and the other end of the telescopic rod 14 is fixedly connected to the back of the inner side of the detection box 1, and the telescopic rod 14 enables the compression plate 12 to have the function of stable movement, thereby preventing the threaded sleeve 11 from rotating synchronously with the rotation of the threaded rod 10 when the compression plate 12 moves, thereby ensuring the stability of the compression plate 12 when moving.

[0027] The working principle of the utility model is:

[0028] When the lithium battery pack needs to be thermally sensed, firstly, cooling water is injected into the detection box 1, and then the lithium battery pack is manually taken out, and the two electric push rods 4 are used to drive the positioning clamps 5 to move closer to each other, so that when the two positioning clamps 5 move closer to each other to a certain position, the lithium battery pack can be positioned;

[0029] At the same time, when one of the electric push rods 4 drives the positioning clamp 5 to move to the right, it can drive the connecting bar 6 to move to the right synchronously, so that the connecting bar 6 drives the rack 7 to move to the right, so that when the rack 7 moves to the right to mesh with the gear 13, the gear 13 can be driven by the movement and meshing of the rack 7 to drive the threaded rod 10 to rotate. When the threaded rod 10 rotates, the threaded sleeve 11 threadedly matched with the threaded rod 10 can drive the compression plate 12 to move forward to compress the cooling water in the detection box 1, so that the water level of the cooling water can contact the bottom of the lithium battery pack to sense the heat thereof, and then the temperature of the cooling water can be displayed by the sensing mechanism 2.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A lithium battery pack heating fault sensing device, comprising a detection box (1), characterized in that: The front of the detection box (1) is provided with a sensing mechanism (2), the sensing part of the sensing mechanism (2) is located in the detection box (1), the two sides above the detection box (1) are respectively fixedly connected with connecting blocks (3), the two connecting blocks (3) are respectively fixedly connected with electric push rods (4), the other ends of the two electric push rods (4) are respectively fixedly connected with positioning clamps (5), and one of the electric push rods (4) is fixedly connected with a connecting strip (6) outside; A rack (7) is fixedly connected to the back of the connecting strip (6); a fixing block (8) is fixedly connected to the top of the detection box (1); a bearing (9) is clamped inside the fixing block (8); a threaded rod (10) is rotatably connected inside the bearing (9); the threaded rod (10) is externally threadedly connected to a threaded sleeve (11); a compression plate (12) is fixedly connected to the outside of the threaded sleeve (11); the compression plate (12) is located inside the detection box (1); and a gear (13) is fixedly connected to the outside of the threaded rod (10).

2. A lithium battery pack heating fault sensing device according to claim 1, characterized in that: A telescopic rod (14) is fixedly connected to the back side of the compression plate (12), and the other end of the telescopic rod (14) is fixedly connected to the back side of the inner side of the detection box (1).

3. A lithium battery pack heating fault sensing device according to claim 1, characterized in that: A clamping groove (15) is provided on the inner side of the positioning clamp (5), and a surrounding plate (22) is fixedly connected to the top of the detection box (1).

4. A lithium battery pack heating fault sensing device according to claim 1, characterized in that: A liquid outlet (16) is fixedly connected to the back of the detection box (1), and a valve (17) is provided in the liquid outlet (16).

5. A lithium battery pack heating fault sensing device according to claim 1, characterized in that: Both sides of the detection box (1) are respectively fixedly connected with overlapping blocks (18), and the overlapping blocks (18) are internally threadedly connected with bolts (19).

6. A lithium battery pack heating fault sensing device according to claim 5, characterized in that: The top end of the bolt (19) is fixedly connected to a handle (20), and the bottom end of the bolt (19) is fixedly connected to a stabilizing pad (21).

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