An integrated room-temperature battery cell testing device

Abstract

The present invention provides an integrated normal-temperature battery cell testing device in the technical field of formation and capacity testing equipment, including: a cabinet body provided with a plurality of testing chambers; a power supply module arranged inside the cabinet body; a battery cell testing module arranged inside the testing chamber and connected to the power supply module; the cabinet body is provided with: an electric control box arranged inside the cabinet body and connected to the power supply module and the battery cell testing module; an operation panel connected to the electric control box; a warning lamp arranged at the top of the cabinet body and connected to the electric control box; an air filter arranged inside the cabinet body and connected to the electric control box; a power cable bracket arranged inside the cabinet body; a water and gas integrated fire-fighting pipe, one end of which is arranged at the top of the cabinet body and the other end is coiled inside the cabinet body; a door group rotatably connected to the cabinet body; an air inlet and outlet group arranged on the surface of the cabinet body; and a fan arranged inside the air inlet and outlet group and connected to the electric control box. The advantages of the present invention are as follows: the integration degree of the equipment is greatly improved, thereby greatly improving the convenience of equipment operation and maintenance, and greatly reducing the equipment cost.

Description

Technical Field

[0001] The present invention relates to the technical field of formation and grading equipment, and particularly to an integrated normal-temperature battery cell testing device. Background Art

[0002] During the production process of a battery module, it is necessary to perform formation and grading on the batteries that make up the battery module. Formation means applying a precise and stable voltage and current between the positive and negative electrode posts of the battery cell, so that the active substances on the positive and negative electrodes of the battery cell are excited, forming a stable and benign cyclic electrochemical reaction, and forming a stable SEI film on the electrode posts. The structure of the SEI film directly affects the performance of the battery cell such as cycle life, stability, self-discharge, and safety. Grading means charging and discharging the battery cell, and the charging and discharging currents of different types of battery cells are slightly different, so as to count parameters such as the capacity, charging constant current ratio, discharge platform voltage, and internal resistance of the battery cell, and then screen out battery cells with the same indicators for grading and grouping. Only battery cells with very close performance can form a battery module, and the consistency of the battery cell performance determines the performance of the battery module.

[0003] Formation and grading require the use of formation and grading equipment. Traditional formation and grading equipment consists of an independent press cabinet, a power supply cabinet, and a bridge, which has the disadvantages of large floor area, complex installation, high material and labor costs, and inconvenient handling and adjustment.

[0004] Therefore, how to provide an integrated normal-temperature battery cell testing device to improve the integration of the device, thereby improving the convenience of device operation and maintenance and reducing the device cost has become an urgent technical problem to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an integrated normal-temperature battery cell testing device to improve the integration of the device, thereby improving the convenience of device operation and maintenance and reducing the device cost.

[0006] The present invention is realized as follows: An integrated normal-temperature battery cell testing device includes:

[0007] A cabinet with several test compartments inside;

[0008] A power module disposed inside the cabinet;

[0009] Several battery cell testing modules respectively disposed in one of the test compartments and connected to the power module;

[0010] The cabinet is provided with:

[0011] An electric control box disposed inside the cabinet and connected to the power module and the battery cell testing modules;

[0012] An operation panel disposed on the front of the cabinet and connected to the electric control box;

[0013] A warning light, which is arranged at the top of the cabinet body and is connected to the electric control box;

[0014] An air filter, which is arranged inside the cabinet body and is connected to the electric control box;

[0015] Several power cable brackets, which are arranged inside the cabinet body;

[0016] At least one water and gas integrated fire pipe, with one end arranged at the top of the cabinet body and the other end coiled inside the cabinet body;

[0017] A door group, which is rotatably connected to the cabinet body;

[0018] An air inlet and outlet group, which is arranged on the surface of the cabinet body;

[0019] Several fans, which are arranged inside the air inlet and outlet group and are connected to the electric control box.

[0020] Further, the operation panel is provided with:

[0021] A start button, which is connected to the electric control box;

[0022] A stop button, which is connected to the electric control box;

[0023] An emergency stop button, which is connected to the electric control box;

[0024] A rise button, which is connected to the electric control box;

[0025] A fall button, which is connected to the electric control box;

[0026] An enable button, which is connected to the electric control box.

[0027] Further, the door group includes:

[0028] Two front opening doors of the cabinet body, which are rotatably connected to the front of the cabinet body and are respectively provided with two observation windows;

[0029] A front power opening door, which is rotatably connected to the front of the cabinet body;

[0030] Two rear power opening doors, which are rotatably connected to the back of the cabinet body;

[0031] A rear maintenance door, which is rotatably connected to the back of the cabinet body.

[0032] Further, the air inlet and outlet group includes:

[0033] Several side air inlets, which are arranged on the side of the cabinet body;

[0034] A plurality of front air inlets are provided on the front of the cabinet;

[0035] A plurality of upper air outlets are provided on the top surface of the cabinet;

[0036] A plurality of rear air outlets are provided on the back of the cabinet.

[0037] Further, the power supply module includes:

[0038] At least one AC-DC module is provided inside the cabinet and is connected to the electric control box;

[0039] At least one DC-DC module is provided inside the cabinet and is respectively connected to the AC-DC module, the battery cell testing module, and the electric control box.

[0040] Further, the battery cell testing module includes:

[0041] A lifting mechanism is provided inside the test chamber and is connected to the electric control box;

[0042] A probe module is vertically provided at the lifting end of the lifting mechanism and is connected to the power supply module;

[0043] At least one temperature sensor is provided inside the test chamber and is connected to the electric control box;

[0044] At least one smoke sensor is provided inside the test chamber and is connected to the electric control box.

[0045] The advantages of the present invention are as follows:

[0046] 1. By integrating the power supply module and the battery cell testing module inside the cabinet, and an electric control box is provided inside the cabinet and connected to the power supply module and the battery cell testing module to control the operation of the battery cell testing equipment, that is, using an integrated structure to replace the traditional split structure, not only reduces the floor area of the equipment, lowers the installation complexity, saves material and labor costs, facilitates the handling and adjustment of the equipment, ultimately greatly improves the integration degree of the equipment, and further greatly improves the convenience of equipment operation and maintenance, and greatly reduces the equipment cost.

[0047] 2. By using an integrated structure to replace the traditional split structure, the routing of the power lines is shortened, the line loss and heat generation are reduced, and each test chamber is separately provided with a temperature sensor and a smoke sensor to monitor the temperature and smoke concentration in real time, a water-gas integrated fire extinguishing pipe is provided for fire extinguishing during thermal runaway, and a warning light is provided to warn of the abnormal operation state of the equipment, thereby greatly improving the safety of battery cell testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The present invention will be further described below with reference to the accompanying drawings in conjunction with embodiments.

[0049] Figure 1 It is one of the structural schematic diagrams of an integrated normal-temperature battery cell testing device of the present invention.

[0050] Figure 2 It is the second structural schematic diagram of an integrated normal-temperature battery cell testing device of the present invention.

[0051] Figure 3 It is the third structural schematic diagram of an integrated normal-temperature battery cell testing device of the present invention.

[0052] Figure 4 It is the front view of an integrated normal-temperature battery cell testing device of the present invention.

[0053] Figure 5 It is the left view of an integrated normal-temperature battery cell testing device of the present invention.

[0054] Figure 6 It is the right view of an integrated normal-temperature battery cell testing device of the present invention.

[0055] Figure 7 It is the circuit principle block diagram of an integrated normal-temperature battery cell testing device of the present invention.

[0056] Marking description:

[0057] 100 - An integrated normal-temperature battery cell testing device, 1 - Cabinet, 2 - Power supply module, 3 - Battery cell testing module, 111 - Testing chamber, 11 - Electric control box, 12 - Operation panel, 13 - Warning lamp, 14 - Air filter, 15 - Power cable bracket, 16 - Water and gas integrated fire pipe, 17 - Door group, 18 - Air inlet and outlet group, 19 - Fan, 121 - Start button, 122 - Stop button, 123 - Emergency stop button, 124 - Up button, 125 - Down button, 126 - Enable button, 171 - Front opening door of the cabinet, 172 - Front opening door of the power supply, 173 - Rear opening door of the power supply, 174 - Rear maintenance door, 1711 - Observation window, 181 - Side air inlet, 182 - Front air inlet, 183 - Upper air outlet, 184 - Rear air outlet, 21 - AC / DC module, 22 - DC / DC module, 31 - Lifting mechanism, 32 - Probe module, 33 - Temperature sensor, 34 - Smoke sensor. Detailed implementation manners

[0058] In the embodiment of the present invention, by providing an integrated normal-temperature battery cell testing device 100, the technical problem in the prior art that the formation and grading equipment consists of an independent press cabinet, a power cabinet and a bridge, and has the disadvantages of large floor area, complex installation, high material and labor costs, and inconvenient handling and adjustment is solved, and the technical effects of greatly improving the integration degree of the device, further greatly improving the convenience of device operation and maintenance, and greatly reducing the device cost are achieved.

[0059] The technical solution in the embodiment of the present invention to solve the above problems has the following general idea: integrating a power module 2 and a battery cell testing module 3 in the cabinet 1, and adopting an integrated structure to replace the traditional split structure, so as to improve the integration degree of the device, enhance the convenience of device operation and maintenance, and reduce the device cost.

[0060] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0061] Please refer to Figures 1 to 7 As shown, a preferred embodiment of an integrated normal-temperature battery cell testing device 100 of the present invention includes:

[0062] A cabinet 1 with several test chambers 111 provided inside; the cabinet 1 is used to carry the battery cell testing device 100;

[0063] A power module 2 provided in the cabinet 1, used to supply power to the battery cell testing device 100;

[0064] Several battery cell testing modules 3, respectively provided in one of the test chambers 111 and connected to the power module 2, used to press a battery cell (not shown) for testing;

[0065] The cabinet 1 is provided with:

[0066] An electric control box 11 provided in the cabinet 1 and connected to the power module 2 and the battery cell testing module 3, used to control the operation of the battery cell testing device 100. In specific implementation, as long as an electric control box that can achieve this function is selected from the prior art, it is not limited to any model, and the control program is well-known to those skilled in the art, which can be obtained by those skilled in the art without creative labor;

[0067] An operation panel 12 provided on the front of the cabinet 1 and connected to the electric control box 11, used to operate the battery cell testing device 100;

[0068] A warning lamp 13 provided on the top of the cabinet 1 and connected to the electric control box 11, used to indicate the abnormal working state of the battery cell testing device 100;

[0069] An air filter 14 provided in the cabinet 1 and connected to the electric control box 11, used to filter the air;

[0070] Several power cable brackets 15 provided in the cabinet 1, used for the routing of power cables (not shown);

[0071] At least one integrated water and gas fire pipe 16, with one end disposed at the top of the cabinet 1 and the other end coiled inside the cabinet 1, for fire protection during thermal runaway;

[0072] A door group 17, rotatably connected to the cabinet 1;

[0073] An air inlet and outlet group 18, disposed on the surface of the cabinet 1, for ventilation of the battery cell testing device 100;

[0074] Several fans 19, disposed inside the air inlet and outlet group 18 and connected to the electric control box 11, for heat dissipation of the battery cell testing device 100.

[0075] The operation panel 12 is provided with:

[0076] A start button 121, connected to the electric control box 11, for starting the operation of the battery cell testing device 100;

[0077] A stop button 122, connected to the electric control box 11, for stopping the operation of the battery cell testing device 100;

[0078] An emergency stop button 123, connected to the electric control box 11, for emergently stopping the operation of the battery cell testing device 100

[0079] A rise button 124, connected to the electric control box 11, for controlling the lifting mechanism 31 to rise;

[0080] A descent button 125, connected to the electric control box 11, for controlling the lifting mechanism 31 to descend;

[0081] An enable button 126, connected to the electric control box 11, for enabling the battery cell testing device 100.

[0082] The door group 17 includes:

[0083] Two front cabinet doors 171, rotatably connected to the front of the cabinet 1 and each provided with two observation windows 1711; the front cabinet doors 171 are used for loading and unloading battery cells;

[0084] A front power supply door 172, rotatably connected to the front of the cabinet 1, for front maintenance of the power supply module 2;

[0085] Two rear power supply doors 173, rotatably connected to the back of the cabinet 1, for rear maintenance of the power supply module 2;

[0086] A rear maintenance door 174, rotatably connected to the back of the cabinet 1, for maintenance of the battery cell testing module 3.

[0087] The air inlet and outlet group 18 includes:

[0088] A plurality of side air inlets 181, which are arranged on the side surface of the cabinet body 1;

[0089] A plurality of front air inlets 182, which are arranged on the front surface of the cabinet body 1;

[0090] A plurality of upper air outlets 183, which are arranged on the top surface of the cabinet body 1;

[0091] A plurality of rear air outlets 184, which are arranged on the rear surface of the cabinet body 1.

[0092] The power supply module 2 includes:

[0093] At least one AC-DC module 21, which is arranged in the cabinet body 1 and is connected to the electric control box 11, and is used for converting alternating current into direct current;

[0094] At least one DC-DC module 22, which is arranged in the cabinet body 1 and is respectively connected to the AC-DC module 21, the battery cell testing module 3 and the electric control box 11, and is used for voltage conversion of the power supply output by the AC-DC module 21.

[0095] The battery cell testing module 3 includes:

[0096] A lifting mechanism 31, which is arranged in the testing chamber 111 and is connected to the electric control box 11, and is used for controlling the probe module 32 to lift to press the battery cell for testing;

[0097] A probe module 32, which is vertically arranged at the lifting end of the lifting mechanism 31 and is connected to the power supply module 2, and is used for contacting the electrode post of the battery cell to test the battery cell;

[0098] At least one temperature sensor 33, which is arranged in the testing chamber 111 and is connected to the electric control box 11, and is used for monitoring the temperature in the testing chamber 111 in real time;

[0099] At least one smoke sensor 34, which is arranged in the testing chamber 111 and is connected to the electric control box 11, and is used for monitoring the smoke concentration in the testing chamber 111 in real time.

[0100] The working principle of the present invention:

[0101] Open the front door 171 of the cabinet, put the battery cell to be tested into the test chamber 111, and then close the front door 171 of the cabinet; press the descending button 125 to make the lifting mechanism 31 and the probe module 32 move downward and then press on the pole of the battery cell; press the start button 121, the electric control box 11 starts the fan 19 based on the trigger signal of the start button 121, collects the temperature and smoke concentration in real time through the temperature sensor 33 and the smoke sensor 34, and controls the power module 2 to charge and discharge the battery cell through the probe module 32 to test the battery cell.

[0102] In summary, the advantages of the present invention are:

[0103] 1. By integrating the power module and the battery test module in the cabinet, and providing an electric control box in the cabinet connected with the power module and the battery test module to control the operation of the battery test equipment, that is, adopting an integrated structure instead of the traditional split structure, it not only reduces the footprint of the equipment, reduces the complexity of installation, saves material and labor costs, and facilitates the handling and adjustment of the equipment, but also greatly improves the integration of the equipment, thereby greatly improving the convenience of equipment operation and maintenance, and greatly reducing the equipment cost.

[0104] 2. By adopting an integrated structure instead of the traditional split structure, the routing of the power line is shortened, the line loss and heat generation are reduced, and each test chamber is equipped with a temperature sensor and a smoke sensor to monitor the temperature and smoke concentration in real time. A water-gas integrated fire-fighting pipe is set up for fire extinguishing in case of thermal runaway, and a warning light is set up to warn of abnormal operating status of the equipment, thereby greatly improving the safety of battery cell testing.

[0105] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An integrated normal-temperature battery cell testing device, characterized in that: it includes: a cabinet body with several testing chambers arranged inside; a power supply module arranged inside the cabinet body; several battery cell testing modules respectively arranged in one of the testing chambers and connected to the power supply module; the cabinet body is provided with: an electric control box arranged inside the cabinet body and connected to the power supply module and the battery cell testing modules; an operation panel arranged on the front of the cabinet body and connected to the electric control box; a warning lamp arranged on the top of the cabinet body and connected to the electric control box; an air filter arranged inside the cabinet body and connected to the electric control box; several power cable brackets arranged inside the cabinet body; at least one water-gas integrated fire pipe, one end of which is arranged on the top of the cabinet body and the other end is coiled inside the cabinet body; a door group rotatably connected to the cabinet body; an air inlet and outlet group arranged on the surface of the cabinet body; several fans arranged inside the air inlet and outlet group and connected to the electric control box.

2. The integrated normal-temperature battery cell testing device according to claim 1, characterized in that: the operation panel is provided with: a start button connected to the electric control box; a stop button connected to the electric control box; an emergency stop button connected to the electric control box; a raise button connected to the electric control box; a lower button connected to the electric control box; an enable button connected to the electric control box.

3. The integrated normal-temperature battery cell testing device according to claim 1, characterized in that: the door group includes: two front opening doors of the cabinet body rotatably connected to the front of the cabinet body and respectively provided with two observation windows; a front power supply opening door rotatably connected to the front of the cabinet body; two rear power supply opening doors rotatably connected to the back of the cabinet body; a rear maintenance door rotatably connected to the back of the cabinet body.

4. The integrated normal-temperature battery cell testing device according to claim 1, characterized in that: the air inlet and outlet group includes: several side air inlets arranged on the side of the cabinet body; several front air inlets arranged on the front of the cabinet body; several upper air outlets arranged on the top surface of the cabinet body; several rear air outlets arranged on the back of the cabinet body.

5. The integrated normal-temperature battery cell testing device according to claim 1, characterized in that: the power supply module includes: at least one ACDC module arranged inside the cabinet body and connected to the electric control box; at least one DCDC module arranged inside the cabinet body and respectively connected to the ACDC module, the battery cell testing module and the electric control box.

6. The integrated normal-temperature battery cell testing device according to claim 1, characterized in that: the battery cell testing module includes: a lifting mechanism arranged inside the testing chamber and connected to the electric control box; a probe module vertically arranged at the lifting end of the lifting mechanism and connected to the power supply module; at least one temperature sensor arranged inside the testing chamber and connected to the electric control box; at least one smoke sensor arranged inside the testing chamber and connected to the electric control box.

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