A square lithium-ion battery charging and discharging device

Abstract

A square lithium-ion battery formation and capacity division charging and discharging device comprises: a frame having a charging and discharging chamber; a driving box movement mechanism, arranged in the charging and discharging chamber of the frame, comprising a moving frame, a battery tray support plate and a battery tray lifting mechanism; a pole ear clamping mechanism, suspended on the top of the driving box movement mechanism, comprising an integrated needle box assembly and a system auxiliary power supply assembly; a tray battery heat dissipation device, arranged on the top of the frame, for achieving airflow circulation to cool the square lithium battery, the driving box movement mechanism and the pole ear clamping mechanism; and a controller, arranged on the frame, the driving box movement mechanism, the pole ear clamping mechanism and the tray battery heat dissipation device are all connected to the controller signal or electrically connected. The beneficial effects of the present invention are: the two processes of formation and capacity division of square lithium-ion batteries can be completed, the temperature uniformity at the battery tray is high, the charging and discharging efficiency of the equipment is improved, the volume of the equipment is reduced, and the battery quality and the safety of the system are safely and effectively improved.

Description

Technical Field

[0001] The invention relates to a square lithium-ion battery capacity charging and discharging device. Background Art

[0002] In the production process of square lithium-ion batteries, formation and capacity separation are essential processes. Formation plays a vital role in the performance of batteries. Its function is to convert the active substances inside the battery into substances with normal electrochemical effects during the first charge, so that an effective purification membrane or SEI membrane is formed on the surface of the negative electrode of the battery. Capacity separation is to conduct several full-load charge and discharge cycles on the activated battery to select the capacity of the battery, thereby determining the grade of the lithium battery. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the existing square lithium-ion battery capacity conversion equipment has a large space occupied by the driving box and the motion mechanism, and the driving board is connected to the pin board through wires, which affects the charging and discharging efficiency. Therefore, it is proposed to integrate the driving box and the motion mechanism without wire connection, so as to reduce the overall space of the equipment and improve the charging and discharging efficiency of the equipment.

[0004] The square lithium-ion battery capacity charging and discharging device described in the present invention is characterized by comprising:

[0005] A frame having a charging and discharging cavity;

[0006] The driving box movement mechanism is arranged in the charging and discharging chamber of the frame, and includes a movement frame, a battery tray support plate and a battery tray lifting mechanism. The movement frame is installed at the bottom of the charging and discharging chamber, and the battery tray lifting mechanism is installed on the movement frame. The battery tray support plate is installed at the lifting end of the battery tray lifting mechanism and is located directly below the tab clamping mechanism, so that it is lifted and lowered under the driving of the lifting end to adjust the distance between the battery and the tab clamping mechanism;

[0007] The tab clamping mechanism is suspended on the top of the driving box movement mechanism, and includes an integrated needle box assembly and a system auxiliary power supply assembly, wherein the integrated needle box assembly includes a fixed portion and a clamping formation portion arranged on the fixed portion, wherein the fixed portion is installed on the moving portion of the driving box movement mechanism, and the clamping formation portion is provided with a contact terminal for contacting and connecting with the positive and negative tabs of the square lithium battery; the control port of the clamping formation portion is electrically connected to the connection port of the system auxiliary power supply assembly, so as to realize power supply to the clamping formation portion;

[0008] The tray battery heat dissipation device is arranged on the top of the rack, and its air intake is kept aligned with the battery tray support plate located in the charging and discharging chamber, and the air outlet is led to the outside of the equipment, which is used to realize air circulation to cool the square lithium battery, the drive box movement mechanism and the pole ear clamping mechanism;

[0009] And a controller is arranged on the frame, and the drive box movement mechanism, the pole ear clamping mechanism and the tray battery cooling device are all connected to the controller signal or electrically connected to control the normal operation of the drive box movement mechanism, the pole ear clamping mechanism and the tray battery cooling device.

[0010] The clamping formation part includes a control unit board, a driving power board, a probe, an inverter power supply and an electronic circuit. The electronic circuit, driving power board, probe and system auxiliary power supply are respectively connected to the control unit board, and the control unit board is bidirectionally connected with the controller signal through an interface communication board; the driving power board is arranged in the fixing part, and the probe is directly installed on the output end of the driving power board through a structural member, so as to realize the passage between the driving power board and the square lithium battery; the signal transmission end of the driving power board is connected to the signal transmission port signal of the inverter power supply; the inverter power supply interface is respectively connected to the input end of the power grid and the driving board power board, so as to convert the alternating current of the power grid into direct current to charge the battery and to convert the direct current discharged by the battery into alternating current and feed it back to the power grid, thereby realizing the function of energy recovery.

[0011] The heat dissipation device includes at least one heat dissipation fan and an air duct for heat dissipation, wherein the air duct is divided into an installation section and a ventilation section, wherein the installation section is suspended on the top frame of the moving frame, and the edge of the installation section is connected to the ventilation section, so as to discharge the gas in the charging and discharging chamber to the outside of the equipment to realize gas circulation; the heat dissipation fan is embedded in the bottom plate of the installation section, and the air suction port of the heat dissipation fan is aligned with the charging and discharging chamber, and the control end of the heat dissipation fan is electrically connected to the control port of the controller, so as to drive the airflow.

[0012] The clamping forming part also includes a smoke alarm, wherein the smoke alarm is arranged on the moving frame of the moving mechanism, and a signal connection end of the smoke alarm is signal-connected or electrically connected to a signal connection end of the controller.

[0013] The driving power board and the probe are connected, and the probe is directly installed on the output end of the driving power board through a structural member to form an integrated structure, eliminating the need for conventional equipment to connect the probe and the driving power board through wire connections, thereby improving the charging and discharging efficiency of the chemical component equipment and reducing the space area of ​​the equipment.

[0014] The drive box motion mechanism is integrated, and the probe and the drive power board form an integrated structure. The integrated structure is installed on the top of the motion frame of the drive box motion mechanism, thereby realizing the integration of the drive box motion mechanism. The heat dissipation device is used to dissipate heat from the battery, the drive power board, and the inverter power supply. The heat dissipation device is installed above the drive box motion mechanism, and twelve fans are evenly distributed, so that the temperature of each battery in the tray is basically the same to achieve a constant temperature effect. The tab clamping mechanism lifts the tray through the battery tray support plate of the drive box motion mechanism so that the positive and negative tabs of the battery are in contact with the probe, so that the probe and the positive and negative tabs of the battery are tightened.

[0015] The beneficial effects of the present invention are as follows: the formation and capacity separation equipment can complete the two processes of formation and capacity separation of square lithium-ion batteries, the temperature uniformity at the battery tray is high, the charging and discharging efficiency of the equipment is improved, the size of the equipment is reduced, and the battery quality and system safety are safely and effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1a It is a front view of the present invention;

[0017] Figure 1b is a side view of the present invention;

[0018] Figure 1c is a top view of the present invention;

[0019] Figure 2a It is a front view of the pole lug clamping mechanism and the driving box movement mechanism of the present invention;

[0020] Figure 2b It is a side view of the tab clamping mechanism and the drive box movement mechanism of the present invention;

[0021] Figure 2c It is a top view of the pole lug clamping mechanism and the driving box movement mechanism of the present invention;

[0022] Figure 3a It is a front view of the tab clamping mechanism of the present invention;

[0023] Figure 3b This is a view of the integrated structure of the probe and the driving power board of the present invention;

[0024] Figure 3c It is a front view of the integrated structure of the probe and the driving power board of the present invention;

[0025] Figure 3d is a side view of the tab clamping mechanism of the present invention;

[0026] Figure 4 is a structural diagram of the heat dissipation device of the present invention;

[0027] Figure 5ais a front view of the air duct of the present invention;

[0028] Figure 5b is a side view of the air duct of the present invention;

[0029] Figure 5c It is a top view of the air duct of the present invention. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings.

[0031] Refer to the attached figure:

[0032] Embodiment 1 A square lithium-ion battery capacity charging and discharging device according to the present invention comprises:

[0033] A frame 1 having a charging and discharging chamber;

[0034] The driving box movement mechanism 2 is arranged in the charging and discharging chamber of the frame, and includes a movement frame 21, a battery tray support plate 22 and a battery tray lifting mechanism 23. The movement frame 21 is installed at the bottom of the charging and discharging chamber, and the battery tray lifting mechanism 23 is installed on the movement frame 21. The battery tray support plate 22 is installed at the lifting end of the battery tray lifting mechanism 23 and is located directly below the tab clamping mechanism, so that it is lifted and lowered under the driving of the lifting end to adjust the distance between the battery and the tab clamping mechanism;

[0035] The tab clamping mechanism 3 is suspended on the top of the driving box movement mechanism, and includes an integrated needle box assembly 31 and a system auxiliary power supply assembly 6, wherein the integrated needle box assembly 31 includes a fixing portion 311 and a clamping formation portion 312 arranged on the fixing portion, wherein the fixing portion 311 is installed on the moving portion of the driving box movement mechanism, and the clamping formation portion is provided with a contact terminal for contacting and connecting with the positive and negative tabs of the square lithium battery; the control port of the clamping formation portion is electrically connected to the connection port of the system auxiliary power supply assembly, so as to realize power supply to the control board of the clamping formation portion;

[0036] The tray battery heat sink 4 is arranged on the top of the frame, and its air intake is kept aligned with the battery tray support plate located in the charging and discharging chamber, and the air outlet is led to the outside of the device, so as to realize air circulation to cool the square lithium battery, the drive box movement mechanism and the pole ear clamping mechanism;

[0037] And a controller 7 is arranged on the frame 1, and the drive box movement mechanism 2, the pole ear clamping mechanism 3 and the tray battery cooling device 4 are all connected to the controller signal or electrically connected to control the normal operation of the drive box movement mechanism, the pole ear clamping mechanism and the tray battery cooling device.

[0038] The clamping formation part 312 includes a control unit board, a driving power board 3121, a probe 3122, an inverter power supply and an electronic circuit. The electronic circuit, driving power board, probe and system auxiliary power supply are respectively connected to the control unit board, and the control unit board is bidirectionally connected with the controller signal through an interface communication board; the driving power board is arranged in the fixed part, and the probe is directly installed on the output end of the driving power board through a structural member, so as to realize the passage between the driving power board and the square lithium battery; the signal transmission end of the driving power board is connected to the signal transmission port signal of the inverter power supply; the inverter power supply interface is respectively connected to the input end of the power grid and the driving board power board, so as to convert the alternating current of the power grid into direct current to charge the battery and to convert the direct current discharged by the battery into alternating current and feed it back to the power grid, thereby realizing the function of energy recovery.

[0039] The tray battery heat dissipation device 4 includes at least one heat dissipation fan 41 and an air duct 42 for heat dissipation, wherein the air duct is divided into an installation section 421 and a ventilation section 422, wherein the installation section is suspended on the top frame of the moving frame, and the edge of the installation section is connected to the ventilation section, so as to discharge the gas in the charging and discharging chamber to the outside of the equipment to realize gas circulation; the heat dissipation fan is embedded in the bottom plate of the installation section, and the air suction port of the heat dissipation fan is aligned with the charging and discharging chamber, and the control end of the heat dissipation fan is electrically connected to the control port of the controller, so as to drive the air flow.

[0040] The clamping forming part further comprises two smoke alarms 5, wherein the smoke alarms are arranged on the moving frame of the moving mechanism, and the signal connection ends of the smoke alarms are signal-connected or electrically connected to the signal connection ends of the controller.

[0041] The driving power board and the probe are connected, and the probe is directly installed on the output end of the driving power board through a structural member to form an integrated structure, eliminating the need for conventional equipment to connect the probe and the driving power board through wire connections, thereby improving the charging and discharging efficiency of the chemical component equipment and reducing the space area of ​​the equipment.

[0042] The drive box motion mechanism is integrated, and the probe and the drive power board form an integrated structure. The integrated structure is installed on the top of the motion frame of the drive box motion mechanism, thereby realizing the integration of the drive box motion mechanism. The heat dissipation device is used to dissipate heat from the battery, the drive power board, and the inverter power supply. The heat dissipation device is installed above the drive box motion mechanism, and twelve fans are evenly distributed, so that the temperature of each battery in the tray is basically the same to achieve a constant temperature effect. The tab clamping mechanism lifts the tray through the battery tray support plate of the drive box motion mechanism so that the positive and negative tabs of the battery are in contact with the probe, so that the probe and the positive and negative tabs of the battery are tightened.

[0043] The rack is a frame structure, and a charging and discharging chamber is arranged on the upper part, and supporting feet for adjusting the level of the rack are arranged on the bottom.

[0044] Embodiment 2 A square lithium-ion battery capacity charging and discharging device according to the present invention comprises:

[0045] A frame having a charging and discharging cavity;

[0046] The driving box movement mechanism is arranged in the charging and discharging chamber of the frame, and includes a movement frame, a battery tray support plate and a battery tray lifting mechanism. The movement frame is installed at the bottom of the charging and discharging chamber, and the battery tray lifting mechanism is installed on the movement frame. The battery tray support plate is installed at the lifting end of the battery tray lifting mechanism and is located directly below the tab clamping mechanism, so that it is lifted and lowered under the driving of the lifting end to adjust the distance between the battery and the tab clamping mechanism;

[0047] The tab clamping mechanism is suspended on the top of the driving box movement mechanism, and includes an integrated needle box assembly and a system auxiliary power supply assembly, wherein the integrated needle box assembly includes a fixed portion and a clamping formation portion arranged on the fixed portion, wherein the fixed portion is installed on the moving portion of the driving box movement mechanism, and the clamping formation portion is provided with a contact terminal for contacting and connecting with the positive and negative tabs of the square lithium battery; the control port of the clamping formation portion is electrically connected to the connection port of the system auxiliary power supply assembly, so as to realize power supply to the clamping formation portion;

[0048] The tray battery heat dissipation device is arranged on the top of the rack, and its air intake is kept aligned with the battery tray support plate located in the charging and discharging chamber, and the air outlet is led to the outside of the equipment, which is used to realize air circulation to cool the square lithium battery, the drive box movement mechanism and the pole ear clamping mechanism;

[0049] And a controller is arranged on the frame, and the drive box movement mechanism, the pole ear clamping mechanism and the tray battery cooling device are all connected to the controller signal or electrically connected to control the normal operation of the drive box movement mechanism, the pole ear clamping mechanism and the tray battery cooling device.

[0050] The tab clamping mechanism is composed of an integrated needle box assembly and a system auxiliary power supply assembly, wherein the integrated needle box assembly includes a fixing portion and a clamping forming portion arranged on the fixing portion, and is characterized in that the overall space area of ​​the equipment is reduced.

[0051] The clamping forming part of the integrated needle box assembly is composed of a control unit board, a drive power board, a probe, an inverter power supply and an electronic circuit. The probe and the drive power board are fixed together by structural parts and then connected by a wire of about 50mm to achieve the shortest distance connection, thereby improving the charging and discharging efficiency of the equipment.

[0052] The heat dissipation device is composed of 12 12038 model heat dissipation fans, which are evenly distributed above the integrated needle box assembly. The heat of the batteries and drive power boards in the tray is sent to the air duct by exhaust air, and then the heat is discharged through the air duct, so that the temperature of each battery is basically consistent during the charging and discharging process, and the battery can always work in a constant temperature environment.

[0053] The contents described in the embodiments of this specification are merely an enumeration of implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also includes equivalent technical means that can be thought of by those skilled in the art based on the inventive concept.

Claims

1. A square lithium-ion battery capacity charging and discharging device, characterized in that: include: A frame having a charging and discharging cavity; The driving box movement mechanism is arranged in the charging and discharging chamber of the frame, and includes a movement frame, a battery tray support plate and a battery tray lifting mechanism. The movement frame is installed at the bottom of the charging and discharging chamber, and the battery tray lifting mechanism is installed on the movement frame. The battery tray support plate is installed at the lifting end of the battery tray lifting mechanism and is located directly below the tab clamping mechanism, so that it is lifted and lowered under the driving of the lifting end to adjust the distance between the battery and the tab clamping mechanism; The tab clamping mechanism is suspended on the top of the driving box movement mechanism, and includes an integrated needle box assembly and a system auxiliary power supply assembly, wherein the integrated needle box assembly includes a fixed portion and a clamping formation portion arranged on the fixed portion, wherein the fixed portion is installed on the moving portion of the driving box movement mechanism, and the clamping formation portion is provided with a contact terminal for contacting and connecting with the positive and negative tabs of the square lithium battery; the control port of the clamping formation portion is electrically connected to the connection port of the system auxiliary power supply assembly, so as to realize power supply to the clamping formation portion; The tray battery heat dissipation device is arranged on the top of the rack, and its air intake is kept aligned with the battery tray support plate located in the charging and discharging chamber, and the air outlet is led to the outside of the equipment, which is used to realize air circulation to cool the square lithium battery, the drive box movement mechanism and the pole ear clamping mechanism; and a controller, which is arranged on the frame, and the drive box movement mechanism, the pole lug clamping mechanism and the tray battery heat dissipation device are all connected to the controller signal or electrically connected, and is used to control the drive box movement mechanism, the pole lug clamping mechanism and the tray battery heat dissipation device to work normally; The clamping formation part includes a control unit board, a driving power board, a probe, an inverter power supply and an electronic circuit. The electronic circuit, driving power board, probe and system auxiliary power supply are respectively connected to the control unit board, and the control unit board is bidirectionally connected with the controller signal through an interface communication board; the driving power board is arranged in the fixing part, and the probe is directly installed on the output end of the driving power board through a structural member, so as to realize the passage between the driving power board and the square lithium battery; the signal transmission end of the driving power board is connected to the signal transmission port signal of the inverter power supply; the inverter power supply interface is respectively connected to the input end of the power grid and the driving board power board, so as to convert the alternating current of the power grid into direct current to charge the battery and to convert the direct current discharged by the battery into alternating current and feed it back to the power grid, thereby realizing the function of energy recovery.

2. A square lithium-ion battery capacity charging and discharging device as claimed in claim 1, characterized in that: The heat dissipation device includes at least one heat dissipation fan and an air duct for heat dissipation, wherein the air duct is divided into an installation section and a ventilation section, wherein the installation section is suspended on the top frame of the moving frame, and the edge of the installation section is connected to the ventilation section, so as to discharge the gas in the charging and discharging chamber to the outside of the equipment to realize gas circulation; the heat dissipation fan is embedded in the bottom plate of the installation section, and the air suction port of the heat dissipation fan is aligned with the charging and discharging chamber, and the control end of the heat dissipation fan is electrically connected to the control port of the controller, so as to drive the airflow.

3. A square lithium-ion battery capacity charging and discharging device as claimed in claim 1, characterized in that: The clamping forming part also includes a smoke alarm, wherein the smoke alarm is arranged on the moving frame of the driving box moving mechanism, and the signal connection end of the smoke alarm is signal-connected or electrically connected to the signal connection end of the controller.

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