Battery end contact device of capacity grading cabinet

Abstract

The utility model discloses a capacity grading cabinet battery end contact device which comprises a cabinet body, a supporting plate is arranged on one side of the cabinet body, the supporting plate is inclined, one side of the supporting plate is fixed on the cabinet body, supporting blocks are arranged on the supporting plate in the length direction, one side of the supporting plate corresponding to the supporting blocks is provided with a fixed pole, and the other side of the supporting plate is provided with a movable pole. The movable pole is in elastic contact with the movable frame through an elastic device, and the supporting plate is further provided with a driving device used for driving the movable frame to move towards or away from the fixed pole. The movable poles and the movable frame are provided with the elastic devices for elastic contact, and when an error occurs on the accuracy of individual movable poles, other protruding terminals can compress the elastic devices, so that the contact sides of the movable poles are kept on a uniform plane, and the contact stability and sufficiency of the movable poles and the lithium battery are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery capacity distribution cabinets, and particularly relates to a battery terminal contact device of a capacity distribution cabinet. Background Art

[0002] Lithium battery capacity cabinet is an auxiliary equipment for lithium battery packs, mainly used for battery capacity management. During the use of lithium battery packs, different battery cells will lead to inconsistencies in parameters such as voltage and capacity due to differences in battery characteristics. This requires the use of capacity cabinets to divide the battery capacity so that the performance of each battery cell is consistent and the efficiency and life of the entire battery pack are improved.

[0003] The working principle of the lithium battery capacity distribution cabinet is based on the internal resistance and voltage characteristics of the battery. By discharging and charging the battery, the capacity distribution cabinet can measure the internal resistance and voltage of each battery cell, and then perform capacity distribution processing based on these data, that is, adding appropriate resistance or compensation circuit between battery cells to achieve the purpose of consistent voltage between battery cells.

[0004] The existing cylindrical lithium battery capacity distribution cabinet includes a cabinet body for placing a capacity distribution circuit board, a support plate on one side of the cabinet body, and the support plate is used to arrange and place lithium batteries. There are contact terminals on both sides of the support plate, one side is a fixed terminal, and the other side is a movable terminal. After the lithium battery is installed, the movable terminal is driven to contact the lithium battery electrode to achieve electrical connection. The movable terminals are uniformly installed on a driving device and run synchronously. When there is an error in the accuracy of some terminals, it will cause the contact terminal to have poor contact and easy to heat up. Therefore, the utility model makes improvements on the movable terminal end, improves the precision through elastic contact, and enables each terminal to fully contact with the electrode of the lithium battery.

[0005] The key to maintaining lithium battery capacity distribution cabinets is regular maintenance and overhaul, including cleaning equipment, tightening connectors, checking the status of circuit boards and sensors, etc. Regularly check the voltage and capacity of battery cells and handle abnormal situations.

[0006] The lithium battery capacity distribution cabinet achieves consistency in battery cell performance through capacity distribution management, thereby improving the efficiency and life of the entire battery pack.

[0007] In addition to repairs, regular maintenance is also very important to extend the service life of lithium battery sub-capacity cabinets. Regularly check the temperature, humidity and ventilation of the equipment to ensure normal operation of the equipment and avoid overheating. Clean the dust and impurities on the surface and inside of the equipment to ensure good heat dissipation. Regularly check the status of battery cells, including voltage, capacity and internal resistance, and promptly detect and handle abnormal conditions.

[0008] Regularly inspect and test the equipment to detect potential signs of failure and take timely measures to repair and optimize. In addition, regularly replace key components and consumables such as batteries, fuses and wiring to ensure long-term reliable operation of the equipment.

[0009] By understanding its working principle, correct repair techniques and regular maintenance, we can ensure the safe, stable and efficient operation of lithium battery sub-capacity cabinets and contribute to the sustainable development of the energy system. Utility Model Content

[0010] The utility model aims to provide a battery terminal contact device for a capacity distribution cabinet, which is improved at the movable terminal end, improves the precision through elastic contact, and enables each terminal to fully contact with the electrode of the lithium battery.

[0011] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0012] A battery terminal contact device for a capacity distribution cabinet comprises a cabinet body, wherein one side of the cabinet body has a support plate, and the support plate is inclined and fixed to the cabinet body on one side;

[0013] The support plate is arranged with support blocks along the length direction, the support block has a slot body for fixing the lithium battery, the support plate has a fixed pole on one side corresponding to the support block, and the support plate has a movable pole on the other side corresponding to the support block, the movable poles are all fixed to a movable frame, and the movable poles are in elastic contact with the movable frame through an elastic device;

[0014] The support plate is also provided with a driving device for driving the movable frame to move toward or away from the fixed pole.

[0015] Furthermore, the elastic device includes a support member installed at the tail of the movable pole, the support member is an arc-shaped structure, and both ends are fixed to the movable frame. The support member and the movable frame are both provided with through holes for the movable pole to pass through. The movable pole has a support ring, and a spring is arranged between the support ring and the support member, and the spring is sleeved on the movable pole. The spring is a tubular spring, one side of the spring is supported by the support ring, and the other side is supported by the support member.

[0016] Furthermore, the movable frame has an insulating sleeve at a position corresponding to the through hole, and the insulating sleeve is sleeved on the movable pole.

[0017] Furthermore, the driving device includes a fixing plate fixed to the supporting plate, the fixing plate is vertically fixed to the side of the supporting plate, the fixing plate is installed with a screw, one end of the screw is rotatably connected to the movable frame, the other end of the screw has an adjusting disk, and the screw is threadedly matched with the fixing plate.

[0018] Furthermore, the support plate has guide rails corresponding to both sides of the movable frame, and the movable frame has guide sleeves sleeved on the guide rails and moving stably.

[0019] The utility model has the following beneficial effects: The movable frame in the utility model is of a strip structure, with a U-shaped cross-section, which is consistent with the length direction of the support plate. The movable pole columns are all fixed on the movable frame and move synchronously with the movable frame. Driving the movable frame enables the movable pole columns and the fixed pole columns to contact the electrodes of the lithium battery simultaneously to achieve electrical connection. Among them, the movable pole columns and the movable frame are elastically contacted by an elastic device. When there is an error in the accuracy of individual movable pole columns, other protruding terminals can compress the elastic device to keep the contact sides of all movable pole columns on the same plane, improving the contact stability and sufficiency between the movable pole columns and the lithium battery. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below.

[0021] Figure 1 : Schematic diagram of the overall structure of the cabinet body of the present utility model.

[0022] Figure 2 : Schematic diagram of the disassembled structure of the support plate and its components of the present utility model.

[0023] Figure 3 : Schematic diagram of the overall structure of the support plate and its components of the present utility model.

[0024] In the drawings, the list of components represented by each reference numeral is as follows: cabinet body 1, support plate 2, support block 21, lithium battery 7, fixed pole column 3, movable pole column 4, movable frame 5, support member 52, support ring 41, spring 42, insulating sleeve 51, fixing plate 53, screw 6, adjusting disc 61, guide rail 22, guide sleeve 54. Detailed Embodiments

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] As Figure 1-3 shown: A battery terminal contact device for a grading capacitor cabinet includes a cabinet body 1. One side of the cabinet body 1 has a support plate 2. The support plate 2 is inclined and is fixed to the cabinet body 1 on one side. The cabinet body is of a shell structure and is also equipped with a heat dissipation system at the top. The internal part is a grading capacitor circuit board device. One side is a support plate for placing a lithium battery. The support plate extends from one side of the cabinet body to the other side and is inclined for easy installation and removal of the lithium battery.

[0027] The support plate 2 is arranged with support blocks 21 along the length direction. The support blocks are plastic support bodies. The support block 21 has a groove for fixing the lithium battery 7. The cross-section of the groove is arc-shaped and matches the arc of the side wall of the lithium battery, improving the support stability of the lithium battery. The support blocks extend along the length direction of the lithium battery and are perpendicular to the length direction of the support plate. On one side of the support plate 2 corresponding to the support block 21, there is a fixed pole 3, and on the other side of the support plate 2 corresponding to the support block 21, there is a movable pole 4. The movable poles 4 are all fixed to a movable frame 5, and the movable poles 4 are in elastic contact with the movable frame 5 through an elastic device; both the fixed pole and the movable pole are cylindrical contact structures for contacting the electrode side of the lithium battery.

[0028] The support plate 2 is also provided with a driving device for driving the movable frame 5 to move towards or away from the fixed pole 3.

[0029] In the utility model, the movable frame is a strip-shaped structure with a cross-section in the shape of a "匚", which is consistent with the length direction of the support plate. The movable poles are all fixed to the movable frame and move synchronously with the movable frame. Driving the movable frame enables the movable poles and the fixed pole to contact the electrodes of the lithium battery simultaneously to achieve electrical connection. Among them, the movable poles and the movable frame have an elastic device for elastic contact. When there is an error in the accuracy of individual movable poles, other protruding terminals can compress the elastic device to keep the contact sides of each movable pole on the same plane, improving the contact stability and sufficiency between the movable poles and the lithium battery.

[0030] As Figure 2 shown: The elastic device includes a support member 52 installed at the tail of the movable pole 4. The support member 52 is an arc-shaped structure with both ends fixed to the movable frame 5. The support member 52 and the movable frame 5 are both provided with through holes for the movable pole 4 to pass through. The movable pole 4 has a support ring 41, and a spring 42 is arranged between the support ring 41 and the support member 52. The spring 42 is sleeved on the movable pole 4. The spring is a tubular spring, with one side of the spring supported on the support ring and the other side supported on the support member. The movable pole is in telescopic fit with the corresponding through holes of the movable frame and the support member. When the movable pole contacts the electrode of the lithium battery, the spring will be appropriately compressed to make the contact more stable and sufficient.

[0031] The movable frame 5 has an insulating sleeve 51 at the position corresponding to the through hole. The insulating sleeve 51 is sleeved on the movable pole 4. The movable pole is in telescopic fit with the insulating sleeve. The insulating sleeve is a circular tube structure, providing telescopic stability for the movable pole, providing insulation, and preventing electric leakage.

[0032] The driving device includes a fixing plate 53 fixed to the supporting plate 2, the fixing plate 53 is vertically fixed to the side of the supporting plate 2, a screw 6 is installed on the fixing plate 53, one end of the screw 6 is rotatably connected to the movable frame 5, the other end of the screw 6 has an adjustment disk 61, and the screw 6 is threadedly matched with the fixing plate 53. The fixing plate has a screw sleeve for the screw to pass through and threadedly match, and the rotating adjustment disk can drive the movable frame to move as a whole. The selection of the screw can improve stability and is not easy to loosen.

[0033] The support plate 2 has guide rails 22 on both sides corresponding to the movable frame 5, and the movable frame 5 has guide sleeves 54 that sleeve the guide rails 22 and stabilize the movement. The guide rails are parallel to the moving direction of the movable frame, not only providing guidance, but also serving as supporting components of the movable frame.

[0034] This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.

Claims

1. A battery terminal contact device for a capacity distribution cabinet, characterized in that: It comprises a cabinet (1), wherein the cabinet (1) has a support plate (2) on one side, and the support plate (2) is inclined and fixed on one side to the cabinet (1); The support plate (2) is provided with support blocks (21) arranged along the length direction, the support block (21) having a slot body for fixing the lithium battery (7), the support plate (2) having a fixed pole (3) on one side corresponding to the support block (21), and the support plate (2) having a movable pole (4) on the other side corresponding to the support block (21), the movable poles (4) being fixed to a movable frame (5), and the movable poles (4) being in elastic contact with the movable frame (5) via an elastic device; The support plate (2) is also provided with a driving device for driving the movable frame (5) to move towards or away from the fixed pole (3).

2. According to claim 1, a battery terminal contact device for a capacity distribution cabinet is characterized in that: The elastic device comprises a support member (52) mounted on the tail of the movable pole (4); the support member (52) is an arc-shaped structure with two ends fixed to the movable frame (5); the support member (52) and the movable frame (5) are both provided with through holes for the movable pole (4) to pass through; the movable pole (4) has a support ring (41); a spring (42) is provided between the support ring (41) and the support member (52); the spring (42) is sleeved on the movable pole (4).

3. A battery terminal contact device for a capacity distribution cabinet according to claim 2, characterized in that: The movable frame (5) has an insulating sleeve (51) at a position corresponding to the perforation, and the insulating sleeve (51) is sleeved on the movable pole (4).

4. A battery terminal contact device for a capacity distribution cabinet according to claim 1, characterized in that: The driving device comprises a fixing plate (53) fixed to the supporting plate (2), the fixing plate (53) being fixed vertically to the side of the supporting plate (2), the fixing plate (53) being mounted with a screw rod (6), one end of the screw rod (6) being rotatably connected to the movable frame (5), the other end of the screw rod (6) being provided with an adjusting disk (61), and the screw rod (6) being threadably matched with the fixing plate (53).

5. A battery terminal contact device for a capacity distribution cabinet according to claim 4, characterized in that: The support plate (2) has guide rails (22) on both sides corresponding to the movable frame (5), and the movable frame (5) has guide sleeves (54) which are sleeved on the guide rails (22) and move stably.

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