Cylindrical cell charging and discharging contact assembly

Abstract

The utility model discloses a cylindrical cell charge and discharge contact assembly, which comprises a cabinet body, a plurality of support plates are arranged on a single side of the cabinet body from top to bottom, fixed poles and movable poles are respectively arranged on two sides of the support plates corresponding to lithium batteries, the movable poles are all detachably arranged on a movable frame, and the support plates are provided with driving devices for driving the movable frame. A first notch is formed in the movable frame and is used for clamping and fixing the movable pole from top to bottom; the movable pole is of a cylinder structure, the bottom of the movable pole is in a circular arc shape, the movable pole can be conveniently matched and installed with the side wall of the movable pole, the first notches are strip-shaped and are perpendicular to the length direction of the movable frame, and the first notches correspond to the installation positions of the movable pole in a one-to-one mode so that the movable pole can be conveniently disassembled and installed and can be conveniently replaced and overhauled.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacity distribution cabinets, and particularly relates to a cylindrical battery core charging and discharging contact assembly. Background Art

[0002] Lithium battery capacity cabinet is an auxiliary equipment for lithium battery packs, mainly used for battery capacity management. Lithium battery capacity cabinet achieves consistency of battery cell performance through capacity management, thereby improving the efficiency and life of the entire battery pack. The working principle of lithium battery capacity cabinet is based on the internal resistance and voltage characteristics of the battery. By discharging and charging the battery, the capacity cabinet can measure the internal resistance and voltage of each battery cell, and then perform capacity processing based on these data, that is, add appropriate resistance or compensation circuit between battery cells to achieve the purpose of consistent voltage between battery cells.

[0003] The existing cylindrical lithium battery capacity distribution cabinet includes a cabinet body for placing a capacity distribution circuit board, a single side of the cabinet body has a support plate, the support plate is used to arrange and place lithium batteries, and both sides of the support plate have contact poles, one side is a fixed pole, and the other side is a movable pole. After the lithium battery is installed, the movable pole is driven to contact the lithium battery electrode to achieve electrical connection. The movable pole is frequently moved and the body needs to be compressed after contact, which causes the contact end of the movable pole to be easily damaged and the electrical connection to be unstable. The existing movable poles are all installed on the same movable frame, have mounting holes, and are fixed by bolts. It is very inconvenient to replace and overhaul. Therefore, the utility model mainly improves the contact position of the capacity distribution cabinet and improves the installation method of the pole to facilitate disassembly and installation. Utility Model Content

[0004] The utility model aims to provide a cylindrical battery cell charging and discharging contact assembly, which mainly improves the contact position of the capacity distribution cabinet and improves the installation method of the pole to facilitate disassembly and installation.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] A cylindrical battery cell charge and discharge contact assembly, comprising a cabinet for placing circuit equipment, a plurality of support plates being installed from top to bottom on one side of the cabinet, and the length direction of the support plates being used for arranging and installing lithium batteries;

[0007] The support plate is provided with fixed poles and movable poles on both sides corresponding to the lithium battery, and the movable poles can be detachably mounted on a movable frame. The support plate has a driving device for driving the movable frame to make the movable poles contact or stay away from the lithium battery electrodes;

[0008] The movable frame is provided with a first notch for the movable pole to be clamped and fixed from top to bottom.

[0009] Furthermore, the movable pole is sleeved with a limiting sleeve, the limiting sleeve is sleeved at the contact end of the movable pole, and the limiting sleeve has a slot for being inserted into the first notch.

[0010] The cross-section of the movable frame is L-shaped, and it has a vertical plate and a horizontal plate. The vertical plate is provided with a first notch, and the horizontal plate is provided with a spring sheet corresponding to the tail end of the movable pole. The lower side of the spring sheet is fixed to the horizontal plate, and the upper side is provided with a second notch for the tail end of the movable pole to be inserted into. The movable pole is inserted into the second notch and fixed, and the movable pole is telescopically matched between the limit sleeves.

[0011] The spring sheet has two side plane plates and a middle arc plate, the two side plane plates are perpendicularly arranged, the middle part has an arc transition through the arc plate, the second notch is opened on one side plane plate, and the other side plane plate is used to be fixed to the horizontal plate.

[0012] Furthermore, a screw sleeve is sleeved and fixed at the tail end of the movable pole, one end of the screw sleeve has a fixed nut, and the other threaded end is threadedly sleeved with a movable nut, and a limiting groove that engages with the second notch is formed between the fixed nut and the movable nut.

[0013] Furthermore, the support plate also has a support block for stably placing the lithium battery. The support block is made of insulating plastic material and has a strip structure that is consistent with the length direction of the lithium battery. The support block has a groove for placing the lithium battery. The longitudinal cross-section of the groove is an arc shape that matches the curvature of the side wall of the lithium battery.

[0014] Furthermore, the driving device includes a fixed plate fixed to the supporting plate, the fixed plate is vertically fixed to the side of the supporting plate, a screw is installed on the fixed plate, one end of the screw passes through and is rotatably connected to the fixed plate, the threaded end of the other end of the screw passes through the moving frame and cooperates with the threaded portion of the moving frame, and the supporting plate has guide rails on both sides corresponding to the moving frame.

[0015] The utility model has the following beneficial effects: the movable pole is a columnar structure, made of metal, the corresponding first notch is a strip structure, the bottom is an arc shape, which is convenient for matching and installing with the side wall of the movable pole, the first notch is a strip, perpendicular to the length direction of the movable frame, the first notch corresponds to the installation position of the movable pole one by one, and is used for convenient disassembly and installation of the movable pole, and is convenient for replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0017] Figure 1 : Schematic diagram of the disassembly and partial enlargement of the contact assembly of the utility model.

[0018] Figure 2: Schematic diagram of the overall structure of the contact assembly installation of the utility model.

[0019] Figure 3 : Schematic diagram of the cabinet structure of the utility model.

[0020] In the accompanying drawings, the list of components represented by each reference numeral is as follows: cabinet 1, support plate 2, lithium battery 8, fixed pole 3, movable pole 4, mobile frame 5, first notch 51, limit sleeve 41, vertical plate 52, horizontal plate 53, spring piece 7, second notch 71, screw sleeve 42, fixed nut 43, movable nut 44, support block 9, fixed plate 21, screw 6, guide rail 22. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] like Figure 1-3 As shown: A cylindrical battery cell charge and discharge contact assembly, including a cabinet 1 for placing circuit equipment, a plurality of support plates 2 are installed on one side of the cabinet 1 from top to bottom, and the length direction of the support plate 2 is used to arrange and install lithium batteries 8; the cabinet is a shell structure, and the top is also equipped with a heat dissipation system, and the inside is a circuit board device with divided capacity, and a single side is a support plate for placing lithium batteries, and the support plate extends from one side of the cabinet to the other side, and is installed at an angle, which is convenient for installing and removing lithium batteries. The lithium battery is a columnar structure, and the length direction is perpendicular to the length direction of the support plate.

[0023] The support plate 2 is provided with a fixed pole 3 and a movable pole 4 on both sides corresponding to the lithium battery 8. One end of the fixed pole and the movable pole corresponding to the lithium battery is a contact end, and the other end is connected with a cable. The movable pole 4 can be detachably mounted on a movable frame 5. The support plate 2 has a driving device for driving the movable frame to make the movable pole 4 contact or stay away from the electrode of the lithium battery 8.

[0024] The movable frame 5 is provided with a first notch 51 for the movable pole 4 to be inserted and fixed from top to bottom.

[0025] The movable pole is a columnar structure made of metal. The corresponding first notch is a strip structure with an arc-shaped bottom, which is convenient for matching and installing with the side wall of the movable pole. The first notch is a strip and is perpendicular to the length direction of the movable frame. The first notch corresponds to the installation position of the movable pole one by one, which is used for convenient disassembly and installation of the movable pole, and is convenient for replacement and maintenance.

[0026] like Figure 1As shown: the movable pole 4 is sleeved with a limiting sleeve 41, the limiting sleeve 41 is sleeved at the contact end of the movable pole 4, and the limiting sleeve has a slot for inserting into the first notch 51. The slot is inserted along the edge of the first notch to fix the movable pole and limit the installation position of the movable pole. The limiting sleeve is made of insulating resin, which helps to insulate the movable spine from the movable frame.

[0027] The movable frame 5 has an L-shaped cross section and comprises a vertical plate 52 and a horizontal plate 53. The vertical plate 52 is provided with a first notch 51. The horizontal plate 53 is provided with a spring piece 7 corresponding to the tail end of the movable pole. The lower side of the spring piece 7 is fixed to the horizontal plate 53, and the upper side is provided with a second notch 71 for the tail end of the movable pole 4 to be inserted. The movable pole 4 is inserted into the second notch 71 and fixed, and the movable pole 4 is telescopically matched between the limiting sleeve 41.

[0028] The spring piece 7 has two side plane plates and a middle arc plate, the two side plane plates are arranged perpendicular to each other, the middle part is arc-shaped transitioned through the arc plate, the second notch 71 is opened on one side plane plate, and the other side plane plate is used to be fixed to the horizontal plate 53. The spring piece has an elastic function, which is specifically reflected in the corresponding arc surface position. The two side plane plates are convenient for opening the second notch and fixing. The tail end of the corresponding active pole corresponding to the second notch position is the fixed end, and is telescopically matched with the limit sleeve. When the mobile frame is close to the lithium battery, the active pole contacts the lithium battery, and the body can compress the spring piece backward to ensure stable and sufficient contact of the contact end.

[0029] The rear end of the movable pole 4 is sleeved and fixed with a screw sleeve 42, one end of the screw sleeve 42 has a fixed nut 43, and the other end of the threaded end is threadedly sleeved with a movable nut 44, and a limit groove for engaging the second notch 71 is formed between the fixed nut 43 and the movable nut 44. The size of the limit groove can be adjusted by adjusting the movable nut, and the screw sleeve, the fixed nut and the movable nut are all made of insulating resin. The movable nut can be adjusted after being inserted into the movable pole, so that the installation is more stable and the disassembly is also convenient.

[0030] like Figure 1-3 As shown: the support plate 2 also has a support block 9 for stably placing the lithium battery. The support block 9 is made of insulating plastic material and has a strip structure, which is consistent with the length direction of the lithium battery. The support block 9 has a trough for placing the lithium battery. The longitudinal section of the trough is an arc, which matches the curvature of the side wall of the lithium battery 8. It is used to stably place the lithium battery so that the contact ends of the movable pole and the fixed pole can be stably aligned with the discharge end. The driving device includes a fixed plate 21 fixed to the support plate, and the fixed plate 21 is vertically fixed to the side of the support plate 2. The fixed plate is equipped with a screw 6. One end of the screw 6 passes through and is rotatably connected to the fixed plate 21. The threaded end of the other end of the screw 6 passes through the mobile frame 5 and cooperates with the thread passing through the mobile frame. The support plate 2 has guide rails 22 on both sides corresponding to the mobile frame.

[0031] 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 cylindrical battery cell charge and discharge contact assembly, characterized in that: It comprises a cabinet (1) for placing circuit equipment, wherein a plurality of support plates (2) are installed on one side of the cabinet (1) from top to bottom, and the length direction of the support plates (2) is used for arranging and installing lithium batteries (8); The support plate (2) is provided with fixed poles (3) and movable poles (4) on both sides corresponding to the lithium battery (8), and the movable poles (4) are detachably mounted on a movable frame (5). The support plate (2) has a driving device for driving the movable frame so that the movable poles (4) contact or stay away from the electrodes of the lithium battery (8); The movable frame (5) is provided with a first notch (51) for the movable pole (4) to be inserted and fixed from top to bottom.

2. A cylindrical battery cell charge and discharge contact assembly according to claim 1, characterized in that: The movable pole (4) is sleeved with a limiting sleeve (41), the limiting sleeve (41) is sleeved at the contact end of the movable pole (4), and the limiting sleeve has a slot for being inserted into the first notch (51).

3. A cylindrical battery cell charge and discharge contact assembly according to claim 2, characterized in that: The movable frame (5) has an L-shaped cross section and comprises a vertical plate (52) and a horizontal plate (53). The vertical plate (52) is provided with a first notch (51). The horizontal plate (53) is provided with a spring sheet (7) corresponding to the tail end of the movable pole. The lower side of the spring sheet (7) is fixed to the horizontal plate (53). The upper side is provided with a second notch (71) for the tail end of the movable pole (4) to be inserted. The movable pole (4) is inserted into the second notch (71) and fixed. The movable pole (4) is telescopically matched between the limiting sleeve (41).

4. A cylindrical battery cell charge and discharge contact assembly according to claim 3, characterized in that: The spring sheet (7) comprises two side plane plates and a middle arc plate, the two side plane plates are arranged perpendicular to each other, and the middle part is arc-shapedly transitioned through the arc plate, the second notch (71) is opened on one side plane plate, and the other side plane plate is used to be fixed to the horizontal plate (53).

5. A cylindrical battery cell charge and discharge contact assembly according to claim 3, characterized in that: The rear end of the movable pole (4) is sleeved and fixed with a screw sleeve (42), one end of the screw sleeve (42) has a fixed nut (43), and the other end of the screw sleeve is threadedly sleeved with a movable nut (44), and a limiting groove for engaging with the second notch (71) is formed between the fixed nut (43) and the movable nut (44).

6. A cylindrical battery cell charge and discharge contact assembly according to claim 1, characterized in that: The support plate (2) also has a support block (9) for stably placing the lithium battery. The support block (9) is made of insulating plastic material and has a strip-shaped structure that is consistent with the length direction of the lithium battery. The support block (9) has a groove body for placing the lithium battery. The longitudinal cross-section of the groove body is an arc shape that matches the curvature of the side wall of the lithium battery (8).

7. A cylindrical battery cell charge and discharge contact assembly according to claim 1, characterized in that: The driving device comprises a fixing plate (21) fixed to the supporting plate, the fixing plate (21) being fixed vertically to the side of the supporting plate (2), a screw rod (6) being installed on the fixing plate, one end of the screw rod (6) passing through and being rotatably connected to the fixing plate (21), the other end of the screw rod (6) having a threaded end passing through the moving frame (5) and being matched with a thread passing through a part of the moving frame, and the supporting plate (2) having guide rails (22) on both sides corresponding to the moving frame.

Images