Sorting device for cascade utilization of power batteries

Abstract

The utility model relates to the field of battery cascade sorting, and discloses a power battery cascade utilization sorting device which comprises a supporting frame, a conveying belt support is fixedly installed on the top face of the supporting frame, a sorting conveying belt is arranged in the conveying belt support, and an installation support is fixedly installed on the top face of the conveying belt support. A detection mechanism shell is arranged on the bottom face, close to the middle, of the mounting support, a fixing mechanism used for limiting the power batteries is arranged on the top face of the sorting conveying belt, and the fixing mechanism comprises a limiting clamping plate, a fixing supporting plate, a U-shaped connecting rod, a mounting plate, a bearing seat, a bidirectional ball screw and an internal thread adjusting rod. Through cooperation of the limiting clamping plate and the driving mechanism, accurate limiting and fixing of the power batteries to be sorted on the sorting conveying belt can be achieved, it is ensured that when the detection mechanism in the detection mechanism shell conducts performance detection on the batteries, the batteries are kept in a stable static state, and the accuracy and reliability of detection data are improved.

Description

Technical Field

[0001] This utility model belongs to the field of battery cascade sorting technology, specifically a sorting device for the cascade utilization of power batteries. Background Technology

[0002] The secondary utilization of power batteries refers to the reuse of power batteries that have been used in electric vehicles and other fields, whose performance has degraded but still have remaining capacity, in energy storage systems, low-speed electric vehicles, and other scenarios with relatively low battery performance requirements. This achieves the secondary utilization of battery resources. Due to differences in charge and discharge cycles and usage environments, retired power batteries from electric vehicles vary significantly in terms of remaining capacity, state of health (SOH), and charge and discharge performance. If used directly without sorting, it will lead to uneven performance of the reconstituted battery pack, resulting in problems such as accelerated capacity decay and increased risk of thermal runaway, affecting the overall lifespan and safety of the battery pack. By sorting and selecting batteries with similar performance for reconstitution, the performance of the battery pack can be optimized, ensuring the stability and reliability of the secondary utilization system and maximizing the remaining value of retired batteries.

[0003] For example, utility model patent CN222447359U discloses a device for rapid sorting of retired power batteries, including a retired power battery conveyor line, a number of retired power battery carriers on the conveyor line, and a detection and gripping integrated module driven by a multi-axis drive module corresponding to each retired power battery carrier. The detection and gripping integrated module includes a gripping component and an upper capacity detection unit corresponding to the gripping component. A lower capacity detection unit is mounted on the retired power battery carrier. The upper and lower capacity detection units are connected and cooperate with external capacity detection equipment to form a retired power battery capacity detection structure. Combined with the gripping component and the multi-axis drive module, retired power batteries of different capacity are transported to form a rapid sorting structure for retired power batteries.

[0004] However, in actual use, it was found that the retired power batteries in this device lacked limiting positions on the carrier. When the capacity detection part of the integrated detection and gripping module contacts the battery downwards, the electrodes and battery terminals are prone to misalignment, resulting in poor contact. This causes significant deviations in the detected voltage, internal resistance, and other data, affecting the accuracy of capacity judgment. It may even lead to the missed detection of unqualified batteries or the misjudgment of qualified batteries. At the same time, the gripping component may cause the gripping plate to fail to accurately clamp both sides of the battery due to battery position shift and tilt. Therefore, a sorting device for the cascade utilization of power batteries is provided. Utility Model Content

[0005] The purpose of this utility model is to provide a sorting device for the secondary utilization of power batteries in order to solve the problems mentioned above.

[0006] The technical solution adopted by this utility model is as follows: a sorting device for the cascade utilization of power batteries, including a support frame, a conveyor belt bracket fixedly installed on the top surface of the support frame, a sorting conveyor belt arranged inside the conveyor belt bracket, an installation bracket fixedly installed on the top surface of the conveyor belt bracket, a detection mechanism housing arranged near the middle bottom surface of the installation bracket, and a fixing mechanism for limiting the power battery on the top surface of the sorting conveyor belt.

[0007] The fixing mechanism includes a limiting clamping plate, a fixed support plate, a U-shaped connecting rod, a mounting plate, a bearing seat, a bidirectional ball screw, and an internal thread adjusting rod. Two limiting clamping plates are provided on the top surface of the sorting conveyor belt. Two fixed support plates are fixedly installed on the bottom surface of the conveyor belt bracket, and a U-shaped connecting rod is movably inserted through one side of each of the two fixed support plates. One end of the U-shaped connecting rod is fixed to one side of the limiting clamping plate. A mounting plate is fixedly installed on the inner wall of the conveyor belt bracket. Two bearing seats are fixedly installed on the top surface of the mounting plate, and a bidirectional ball screw is fixedly installed through the middle of each of the two bearing seats. The bidirectional ball screw has two threaded sections with opposite thread directions. Two internal thread adjusting rods are threadedly connected to the outer surface of the bidirectional ball screw, and one end of each internal thread adjusting rod passes through one side of the conveyor belt bracket and is fixed to the inner wall of the U-shaped connecting rod. A driving mechanism connected to the bidirectional ball screw is provided on the top surface of the mounting plate.

[0008] In a preferred embodiment, the drive mechanism includes a motor, a first gear, and a second gear. The motor is fixedly mounted on the top surface of the mounting plate, the first gear is fixedly mounted on the drive end of the motor, and the second gear is fixedly mounted on the outer surface of the bidirectional ball screw near the middle. The second gear meshes with the first gear.

[0009] In a preferred embodiment, a plurality of support plates are fixedly installed on the top surface of the conveyor belt bracket, and an electric push rod is fixedly installed on one side of each of the plurality of support plates. The telescopic end of the electric push rod passes through one side of the support plate, and a sorting push plate is fixedly installed on the telescopic end of the electric push rod. A plurality of inclined collection guide plates corresponding to the support plates are fixedly installed on the top surface of the conveyor belt bracket.

[0010] In a preferred embodiment, a horizontal plate is fixedly mounted on the top surface of the mounting bracket, and an electric push rod II is fixedly mounted on the top surface of the horizontal plate. The telescopic end of the electric push rod II is fixed to the top surface of the housing of the detection mechanism.

[0011] In a preferred embodiment, a plurality of support columns are fixedly installed at the corners of the support frame, and a top crossbar is fixedly installed at the top of each of the plurality of support columns.

[0012] In a preferred embodiment, a plurality of limiting rods are movably inserted through the top surface of the mounting bracket, and the bottom ends of the plurality of limiting rods are fixed to the top surface of the housing of the detection mechanism.

[0013] In a preferred embodiment, a support post is fixedly installed on the bottom surface of the inclined collection guide plate.

[0014] In a preferred embodiment, a rubber pad is fixedly installed on the side of the sorting pusher away from the electric push rod.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] 1. In this utility model, due to the adoption of the above-mentioned solution, the precise positioning and fixing of the power batteries to be sorted on the sorting conveyor belt can be achieved through the cooperation of the limiting clamping plate and the driving mechanism. The motor in the driving mechanism is driven by gear one and gear two to rotate the bidirectional ball screw, so that the internal thread adjusting rod drives the limiting clamping plate to flexibly adjust the spacing and closely fit the power batteries of different specifications. This ensures that the battery remains stable and stationary when the testing mechanism inside the testing mechanism housing performs performance testing on the battery, significantly improving the accuracy and reliability of the testing data. At the same time, the electric push rod one cooperates with the sorting push plate to precisely control the extension and retraction of the sorting push plate according to the test results, accurately pushing unqualified or qualified batteries from the sorting conveyor belt to the inclined collection guide plate. Under the action of gravity, the battery smoothly slides into the corresponding collection area along the guide plate, seamlessly completing the entire process operation from testing to sorting, and efficiently realizing the automated screening before the power battery is used in a tiered manner. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the housing structure of the detection mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the U-shaped connecting rod structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal thread adjusting rod structure of this utility model;

[0021] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] The diagram shows the following components: 1. Support frame; 2. Conveyor belt bracket; 3. Sorting conveyor belt; 4. Mounting bracket; 5. Detection mechanism housing; 6. Fixing mechanism; 601. Limiting clamping plate; 602. Fixed support plate; 603. U-shaped connecting rod; 604. Mounting plate; 605. Bearing seat; 606. Bidirectional ball screw; 607. Internal thread adjusting rod; 7. Support plate; 8. Drive mechanism; 801. Motor; 802. Gear 1; 803. Gear 2; 9. Electric push rod 1; 10. Sorting push plate; 11. Inclined collection guide plate; 12. Horizontal plate; 13. Electric push rod 2; 14. Support column; 15. Top horizontal bar; 16. Limiting rod; 17. Support column; 18. Rubber pad. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] refer to Figures 1-5 As shown, a sorting device for the secondary use of power batteries includes a support frame 1. Multiple support columns 14 are fixedly installed at the corners of the support frame 1, and a top crossbar 15 is fixedly installed at the top of each of the multiple support columns 14. The support columns 14 and the top crossbar 15 form a stable frame structure, which greatly improves the overall stability and load-bearing capacity of the sorting device, effectively preventing the device from shaking or tipping over due to vibration or uneven load during operation, ensuring the safe operation of the equipment, and also providing a reliable support foundation for the installation of other components.

[0025] refer to Figures 1-5 As shown, a conveyor belt bracket 2 is fixedly installed on the top surface of the support frame 1. A sorting conveyor belt 3 is installed inside the conveyor belt bracket 2, and an mounting bracket 4 is fixedly installed on the top surface of the conveyor belt bracket 2. The conveyor belt bracket 2 provides a stable mounting platform for the sorting conveyor belt 3, ensuring that the sorting conveyor belt 3 runs smoothly and can continuously and efficiently transport power batteries. Two conveying rollers are installed inside the conveyor belt bracket 2, one as the main conveying roller and the other as the slave conveying roller. The sorting conveyor belt 3 is fitted onto the outer surface of the two conveying rollers. A drive assembly connected to the main conveying roller is installed on the mounting bracket 4. The drive assembly drives the gears and chains to rotate through the motor, causing the drive gears connected to the chain on the main conveying roller to rotate. In this way, the sorting conveyor belt 3 can transport the power batteries to be sorted.

[0026] refer to Figures 1-5 As shown, a detection mechanism housing 5 is installed near the bottom center of the mounting bracket 4. A horizontal plate 12 is fixedly installed on the top surface of the mounting bracket 4, and an electric push rod 13 is fixedly installed on the top surface of the horizontal plate 12. The telescopic end of the electric push rod 13 is fixed to the top surface of the detection mechanism housing 5. Multiple limiting rods 16 are movably inserted through the top surface of the mounting bracket 4, and the bottom ends of the multiple limiting rods 16 are all fixed to the top surface of the detection mechanism housing 5. A fixing mechanism 6 for limiting the power battery is provided on the top surface of the sorting conveyor belt 3. With the setting of the electric push rod 13, the height of the detection mechanism housing 5 can be flexibly adjusted according to the different specifications and sizes of the power battery, which significantly improves the versatility of the device. A complete detection mechanism is installed inside the detection mechanism housing 5. This mechanism includes multiple voltage detection terminals, capacity detection terminals, and internal resistance detection terminals connected to an external controller for accurate measurement of the power battery's voltage. The system measures key performance parameters such as voltage, remaining capacity, and internal resistance. It is also equipped with a temperature detector to monitor the battery surface and internal temperature in real time, preventing detection errors or safety hazards caused by abnormal temperatures. These detection components work together to comprehensively and accurately evaluate the performance of the power battery, providing reliable data support for subsequent sorting. Although the detection mechanism is not shown in the attached drawings, the detection mechanism described in this utility model is a common structure in reality. It is used without structural modifications and will not be elaborated upon here. Furthermore, the limiting rod 16 passes through the mounting bracket 4 and is fixed to the detection mechanism housing 5. When the electric push rod 13 adjusts the height of the housing, it plays a precise limiting and guiding role, ensuring smooth lifting without deviation. The fixing mechanism 6 effectively prevents the battery from sliding or shifting during transportation and testing, further ensuring the accuracy and reliability of the detection data.

[0027] refer to Figures 1-5As shown, the fixing mechanism 6 includes a limiting clamping plate 601, a fixed support plate 602, a U-shaped connecting rod 603, a mounting plate 604, a bearing seat 605, a bidirectional ball screw 606, and an internal thread adjusting rod 607. Two limiting clamping plates 601 are provided on the top surface of the sorting conveyor belt 3, and two fixed support plates 602 are fixedly installed on the bottom surface of the conveyor belt bracket 2. A U-shaped connecting rod 603 is movably inserted through one side of each of the two fixed support plates 602, and one end of the U-shaped connecting rod 603 is fixed to one side of the limiting clamping plate 601. The limiting clamping plate 601 consists of two parts, and... A spring is installed between the two limiting clamping plates 601 to provide a certain buffer during subsequent clamping and prevent excessive clamping force. The limiting clamping plates 601 and the fixed support plate 602 are connected by a U-shaped connecting rod 603, allowing the limiting clamping plates 601 to move flexibly. With the two limiting clamping plates 601, the power battery can be clamped and limited from both sides. The double-sided clamping method can provide a more balanced and stable fixing force, adapt to power batteries of different sizes, further enhance the fixing effect of the battery, and ensure that the battery remains stable during transportation.

[0028] refer to Figures 1-5 As shown, an installation plate 604 is fixedly installed on the inner wall of the conveyor belt support 2. Two bearing seats 605 are fixedly installed on the top surface of the installation plate 604, and a bidirectional ball screw 606 is fixedly installed through the middle of each of the two bearing seats 605. The bidirectional ball screw 606 has two threaded sections with opposite thread directions. Two internal thread adjusting rods 607 are threadedly connected to the outer surface of the bidirectional ball screw 606, and one end of the two internal thread adjusting rods 607 passes through one side of the conveyor belt support 2 and is fixed to the inner wall of the U-shaped connecting rod 603. The top surface of the installation plate 604 is provided with a connection to the bidirectional ball screw 606. The drive mechanism 8, through the cooperation of the bidirectional ball screw 606 and the internal thread adjusting rod 607, enables the synchronous and reverse movement of the two limit clamping plates 601 under the drive of the drive mechanism 8, facilitating quick adjustment of the clamping distance to adapt to different specifications of power batteries. The outer surface of the internal thread adjusting rod 607 is equipped with limit protrusions to prevent the internal thread adjusting rod 607 from rotating on its own. The bearing seat 605 ensures the smoothness and stability of the rotation of the bidirectional ball screw 606, reduces friction loss, improves the adjustment accuracy and service life of the fixing mechanism 6, and makes the fixing operation more convenient and efficient.

[0029] refer to Figures 1-5As shown, the drive mechanism 8 includes a motor 801, a first gear 802, and a second gear 803. The motor 801 is fixedly mounted on the top surface of the mounting plate 604, and the first gear 802 is fixedly mounted on the drive end of the motor 801. The second gear 803 is fixedly mounted on the outer surface of the bidirectional ball screw 606 near the middle, and the second gear 803 meshes with the first gear 802. The motor 801 transmits power stably to the bidirectional ball screw 606 through the meshing of the first gear 802 and the second gear 803. The gear transmission method has accurate transmission ratio and high transmission efficiency, which can accurately control the speed and direction of the bidirectional ball screw 606, thereby accurately adjusting the position of the limit clamping plate 601, realizing automated control of the power battery fixing operation, reducing manual intervention, and improving sorting efficiency and fixing accuracy.

[0030] refer to Figures 1-5 As shown, multiple support plates 7 are fixedly installed on the top surface of the conveyor belt support 2, and an electric push rod 9 is fixedly installed on one side of each support plate 7. The telescopic end of the electric push rod 9 passes through one side of the support plate 7, and a sorting push plate 10 is fixedly installed on the telescopic end of the electric push rod 9. A rubber pad 18 is fixedly installed on the side of the sorting push plate 10 away from the electric push rod 9. Multiple inclined collection guide plates 11 corresponding to the support plates 7 are fixedly installed on the top surface of the conveyor belt support 2, and a support column 17 is fixedly installed on the bottom surface of the inclined collection guide plate 11. The electric push rod 9 can control the extension and retraction of the sorting push plate 10 according to the detection results, accurately pushing the power batteries that meet or do not meet the requirements away from the sorting conveyor belt 3 to achieve automated sorting. The rubber pad 18 can avoid direct hard contact between the sorting push plate 10 and the power battery, preventing damage to the battery. The inclined collection guide plate 11 can guide the pushed-away batteries to slide smoothly into the collection area, reducing manual handling and improving sorting efficiency. At the same time, the support column 17 ensures the stable support of the inclined collection guide plate 11, ensuring that it maintains a stable tilt angle during use.

[0031] The implementation principle of this utility model's sorting device for the cascade utilization of power batteries is as follows: In use, the operator first securely installs the sorting device on the work site using the support frame 1, support column 14, and top crossbar 15. Then, the power batteries to be sorted are placed on the sorting conveyor belt 3, and the motor 801 in the drive mechanism 8 is started. Through the meshing transmission of gear one 802 and gear two 803, the bidirectional ball screw 606 rotates, causing the internal thread adjusting rod 607 to move the two limiting clamping plates 601 towards each other, bringing them closer to the power batteries. This reduces battery offset during transport and ensures stable transport. When the power battery moves with the sorting conveyor belt 3 to the bottom of the testing mechanism housing 5, the motor 801 is started again to make the limit clamping plate 601 firmly clamp the battery. Then, the electric push rod 13 adjusts the height of the testing mechanism housing 5, so that the performance test of the battery can be completed through the testing mechanism inside the testing mechanism housing 5. After the test is completed, the electric push rod 9 precisely controls the sorting push plate 10 according to the test results to push the unqualified or qualified batteries from the sorting conveyor belt 3 to the inclined collection guide plate 11. The batteries slide into the corresponding collection area along the guide plate, thereby realizing an automated and efficient screening process before the power battery is used in the second stage.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sorting device for the secondary use of power batteries, comprising a support frame (1), characterized in that: The top surface of the support frame (1) is fixedly installed with a conveyor belt bracket (2), the inside of the conveyor belt bracket (2) is provided with a sorting conveyor belt (3), the top surface of the conveyor belt bracket (2) is fixedly installed with an installation bracket (4), the bottom surface of the installation bracket (4) near the middle is provided with a detection mechanism housing (5), and the top surface of the sorting conveyor belt (3) is provided with a fixing mechanism (6) for limiting the power battery. The fixing mechanism (6) includes a limiting clamping plate (601), a fixed support plate (602), a U-shaped connecting rod (603), a mounting plate (604), a bearing seat (605), a bidirectional ball screw (606), and an internal thread adjusting rod (607). Two limiting clamping plates (601) are provided on the top surface of the sorting conveyor belt (3), and two fixed support plates (602) are fixedly installed on the bottom surface of the conveyor belt bracket (2). A U-shaped connecting rod (603) is movably inserted through one side of each of the two fixed support plates (602). One end of the U-shaped connecting rod (603) is fixed to one side of the limiting clamping plate (601). A mounting plate (604) is fixedly installed on the inner wall of the conveyor belt bracket (2). Mounting plate (604), on the top surface of which two bearing seats (605) are fixedly mounted, and a bidirectional ball screw (606) is fixedly mounted through the middle of each of the two bearing seats (605). The bidirectional ball screw (606) has two threaded sections with opposite thread directions. The outer surface of the bidirectional ball screw (606) is threaded with two internal thread adjusting rods (607). One end of the two internal thread adjusting rods (607) passes through one side of the conveyor belt bracket (2) and is fixed to the inner wall of the U-shaped connecting rod (603). The top surface of the mounting plate (604) is provided with a drive mechanism (8) connected to the bidirectional ball screw (606).

2. The sorting device for the cascade utilization of power batteries as described in claim 1, characterized in that: The drive mechanism (8) includes a motor (801), a first gear (802) and a second gear (803). The motor (801) is fixedly installed on the top surface of the mounting plate (604). The first gear (802) is fixedly installed on the drive end of the motor (801). The second gear (803) is fixedly installed on the outer surface of the bidirectional ball screw (606) near the middle. The second gear (803) meshes with the first gear (802).

3. The sorting device for the cascade utilization of power batteries as described in claim 1, characterized in that: Multiple support plates (7) are fixedly installed on the top surface of the conveyor belt bracket (2), and electric push rods (9) are fixedly installed on one side of each of the multiple support plates (7). The telescopic end of the electric push rod (9) passes through one side of the support plate (7), and a sorting push plate (10) is fixedly installed on the telescopic end of the electric push rod (9). Multiple inclined collection guide plates (11) corresponding to the support plates (7) are fixedly installed on the top surface of the conveyor belt bracket (2).

4. The sorting device for the cascade utilization of power batteries as described in claim 1, characterized in that: A horizontal plate (12) is fixedly installed on the top surface of the mounting bracket (4), and an electric push rod (13) is fixedly installed on the top surface of the horizontal plate (12). The telescopic end of the electric push rod (13) is fixed to the top surface of the housing (5) of the detection mechanism.

5. A sorting device for the cascade utilization of power batteries as described in claim 1, characterized in that: Multiple support columns (14) are fixedly installed at the corners of the support frame (1), and a top crossbar (15) is fixedly installed at the top of each of the multiple support columns (14).

6. The sorting device for the cascade utilization of power batteries as described in claim 1, characterized in that: The top surface of the mounting bracket (4) is movably provided with multiple limiting rods (16), and the bottom ends of the multiple limiting rods (16) are fixed to the top surface of the detection mechanism housing (5).

7. A sorting device for the cascade utilization of power batteries as described in claim 3, characterized in that: A support column (17) is fixedly installed on the bottom surface of the inclined collection guide plate (11).

8. A sorting device for the cascade utilization of power batteries as described in claim 3, characterized in that: A rubber pad (18) is fixedly installed on the side of the sorting push plate (10) away from the electric push rod (9).

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