A negative pressure formation test device for double-side output terminal battery cells

Abstract

The present invention provides a double-side output pole battery cell negative pressure formation test device in the field of formation and capacity technology, comprising: a frame; a roller transmission line, arranged in the frame; a plurality of lifting cylinders, arranged in the frame, symmetrically located on both sides of the roller transmission line; two guide sheet metals, arranged on both sides of the roller transmission line, the bottom ends of which are connected to the power output ends of the lifting cylinders; two pressing mechanisms, arranged in the frame, located on both sides of the roller transmission line; a positive probe module, arranged at the mobile end of the pressing mechanism on the left; a negative pressure system, arranged at the mobile end of the pressing mechanism on the left; a negative probe module, arranged at the mobile end of the pressing mechanism on the right; a temperature probe module, arranged at the mobile end of the pressing mechanism on the right; a sensor group, arranged on the frame; a PLC, connected to the lifting cylinders, the pressing mechanism, the temperature probe module, and the sensor group. The advantages of the present invention are: the overall height is greatly reduced to improve space utilization, and compatibility is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of formation and capacitance, and in particular to a negative pressure formation test device for a double-side-output-electrode battery cell. Background Art

[0002] With the rapid development of new energy vehicles, power batteries, which serve as the power source of new energy vehicles, have also developed rapidly. As one form of power batteries, square batteries have high packaging reliability, high system energy efficiency, light weight, high energy density, relatively simple structure, and relatively convenient capacity expansion. They are currently an important option for increasing the energy density of power batteries by increasing the capacity of single cells.

[0003] After the production of power battery cells is completed, they need to be formed using formation equipment. Formation is the initial charge and discharge of the battery cells to activate the chemical substances inside the battery cells. However, traditional formation equipment uses a vertical structure to perform the formation operation on the battery cells. That is, the positive and negative probes are located on the upper and lower sides of the battery cells, respectively, and the poles at the top and bottom of the battery cells are pressed together in the vertical direction. This makes the formation equipment too tall, and it is impossible to stack the equipment or set up multiple layers of formation space, resulting in low space utilization. In addition, the spacing between the positive and negative probes cannot be adjusted, making it incompatible with battery cells of different sizes.

[0004] Therefore, how to provide a negative pressure formation test device for a double-side output terminal battery cell to reduce the overall height to improve space utilization and enhance compatibility has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a negative pressure formation test device for a double-side output terminal battery cell, so as to reduce the overall height to improve space utilization and enhance compatibility.

[0006] The present invention is implemented as follows: a negative pressure formation test device for a double-side output terminal battery cell, comprising:

[0007] A framework;

[0008] a roller transmission line disposed in the middle of the interior of the frame;

[0009] A plurality of lifting cylinders are arranged inside the frame, with the power output ends facing upwards, and are symmetrically located on both sides of the roller transmission line;

[0010] Two guide sheet metals are arranged in parallel on both sides of the roller transmission line, and the bottom ends are connected to the power output end of the jacking cylinder;

[0011] Two pressing mechanisms are provided inside the frame and symmetrically located on both sides of the roller transmission line, with the pressing direction both facing the middle;

[0012] A positive electrode probe module is provided at the movable end of the pressing mechanism on the left side;

[0013] a negative pressure system, provided at the moving end of the pressing mechanism on the left side;

[0014] a negative electrode probe module, disposed at the movable end of the pressing mechanism on the right side;

[0015] A temperature probe module is provided at the movable end of the pressing mechanism on the right side;

[0016] a sensor group, disposed on the frame;

[0017] A PLC is connected to the lifting cylinder, the pressing mechanism, the temperature probe module and the sensor group respectively.

[0018] Furthermore, the pressing mechanism includes:

[0019] A pair of slide rails are arranged parallel to the interior of the frame, and the sliding direction is perpendicular to the transmission direction of the roller transmission line;

[0020] Two sliding blocks are respectively connected in sliding manner to one of the slide rails;

[0021] A sliding plate is provided on the top of the two sliding blocks;

[0022] A pitch-changing mechanism is provided on the sliding plate; the positive electrode probe module, the negative pressure system, the negative electrode probe module and the temperature probe module are all provided on the pitch-changing mechanism;

[0023] A change-type hand wheel is provided on the sliding plate and is rotatably connected to the adjustment end of the pitch-changing mechanism;

[0024] A pressing cylinder is arranged inside the frame, a power output end is connected to the sliding plate, and a control end is connected to the PLC.

[0025] Furthermore, the sensor group includes:

[0026] At least one jacking-in-place detection limit switch, disposed in the frame and connected to the PLC;

[0027] At least one pallet in-place detection travel switch is provided in the frame, located behind the roller transmission line, and connected to the PLC;

[0028] At least one press-fit detection limit switch, disposed in the frame and connected to the PLC;

[0029] at least one temperature sensor, disposed on the frame and connected to the PLC;

[0030] at least one smoke sensor, disposed on the frame and connected to the PLC;

[0031] At least one CO sensor is disposed on the frame and connected to the PLC.

[0032] Furthermore, it also includes:

[0033] a metal indicator light, provided on the frame and connected to the PLC;

[0034] At least one fire-fighting pipe is arranged on the top of the frame.

[0035] Furthermore, the transmission surface of the roller transmission line has an inclination.

[0036] The advantages of the present invention are:

[0037] 1. By setting a roller transmission line in the middle of the frame, a pressing mechanism is arranged on both sides of the roller transmission line, and the positive probe module, negative pressure system, negative probe module and temperature probe module are all arranged on the pressing mechanism, that is, a horizontal structure is adopted to perform the formation operation on the battery cell instead of the traditional vertical structure, thereby greatly reducing the overall height, facilitating the stacking of negative pressure formation test devices or setting a multi-layer structure, and ultimately greatly improving space utilization.

[0038] 2. By setting a pitch-changing mechanism on the sliding plate of the pressing mechanism, the changing handwheel is rotatably connected to the adjustment end of the pitch-changing mechanism, and the positive probe module, negative pressure system, negative probe module and temperature probe module are all arranged on the pitch-changing mechanism. By rotating the changing handwheel, the spacing between the probes of the positive probe module, negative pressure system, negative probe module and temperature probe module can be adjusted to adapt to battery cells of different sizes, thereby greatly improving compatibility.

[0039] 3. By setting up a sensor group including a jacking-in-place detection travel switch, a pallet in-place detection travel switch, a pressing-in-place detection travel switch, a temperature sensor, a smoke sensor and a CO sensor, it can effectively monitor whether the pallet is lifted into place, whether the pallet is transferred into place, whether the positive probe module, the negative pressure system, the negative probe module and the temperature probe module are pressed into place, and collect temperature values, smoke concentrations and CO concentrations in real time. When an abnormality occurs, the work is stopped immediately, thereby greatly improving the safety of the negative pressure formation test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] Figure 1 This is one of the structural schematic diagrams of a negative pressure formation test device for a double-side output terminal battery cell of the present invention.

[0042] Figure 2 This is the second structural schematic diagram of a negative pressure formation test device for a double-side output terminal battery cell of the present invention.

[0043] Figure 3 The present invention is a circuit principle block diagram of a negative pressure formation test device for a double-side output terminal battery cell.

[0044] Marking Description:

[0045] 100-A negative pressure formation test device for double-side output terminal battery cells, 1-frame, 2-roller transmission line, 3-lifting cylinder, 4-guide sheet metal, 5-pressing mechanism, 6-positive probe module, 7-negative pressure system, 8-negative probe module, 9-temperature probe module, 10-sensor group, 11-PLC, 12-metal indicator light, 13-fire hose, 51-slide rail, 52-sliding block, 53-sliding plate, 54-pitch changing mechanism, 55-changing handwheel, 56-pressing cylinder, 101-lifting position detection travel switch, 102-tray position detection travel switch, 103-pressing position detection travel switch, 104-temperature sensor, 105-smoke sensor, 106-CO sensor. DETAILED DESCRIPTION

[0046] The embodiment of the present invention provides a negative pressure formation test device 100 for a double-side-electrode battery cell, which solves the technical problems in the prior art that the formation equipment adopts a vertical structure with a high height, resulting in low space utilization and the inability to adjust the distance between the positive and negative probes. It achieves the technical effect of greatly reducing the overall height to improve space utilization and greatly improving compatibility.

[0047] The technical solution in the embodiment of the present invention is to solve the above problems. The overall idea is as follows: a pressing mechanism 5 is arranged on both sides of the roller transmission line 2, and the positive probe module 6, the negative pressure system 7, the negative probe module 8 and the temperature probe module 9 are all arranged on the pressing mechanism 5, that is, a horizontal structure is adopted instead of the traditional vertical structure to reduce the overall height and improve space utilization; the positive probe module 6, the negative pressure system 7, the negative probe module 8 and the temperature probe module 9 are all arranged on the variable distance mechanism 54, and the spacing between the positive probe module 6, the negative pressure system 7, the negative probe module 8 and the temperature probe module 9 can be adjusted by rotating the changing hand wheel 55 to improve compatibility.

[0048] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0049] Please refer to Figures 1 to 3 As shown, a preferred embodiment of a negative pressure formation test device 100 for a double-side output terminal battery cell of the present invention includes:

[0050] A frame 1 for supporting the negative pressure formation test device 100;

[0051] A roller conveyor line 2 is provided in the middle of the frame 1 and is used to convey a tray (not shown) loaded with battery cells (not shown);

[0052] Several lifting cylinders 3 are arranged inside the frame 1, with the power output end facing upwards, and are symmetrically located on both sides of the roller transmission line 2, for lifting the guide sheet metal 4 and then lifting the pallet;

[0053] Two guide sheet metals 4 are arranged in parallel on both sides of the roller transmission line 2, and the bottom ends are connected to the power output end of the jacking cylinder 3 to guide the pallet when it is put in and out of the material;

[0054] Two pressing mechanisms 5 are provided inside the frame 1 and symmetrically located on both sides of the roller transmission line 2, with the pressing direction both facing the middle, and are used to provide power for pressing the positive probe module 6, negative pressure system 7, negative probe module 8 and temperature probe module 9 onto the battery cell;

[0055] A positive electrode probe module 6 is provided at the movable end of the pressing mechanism 5 on the left side and is used for pressing onto the positive electrode post of the battery cell;

[0056] A negative pressure system 7 is provided at the movable end of the pressing mechanism 5 on the left side and is provided with a plurality of negative pressure nozzles (not shown) which are pressed onto the liquid injection port of the battery cell through the negative pressure nozzles; the negative pressure system 7 is connected to a negative pressure source (not shown);

[0057] A negative probe module 8 is provided at the movable end of the pressing mechanism 5 on the right side, and is used for pressing onto the negative pole of the battery cell; the positive probe module 6 and the negative probe module 8 are connected to a power module (not shown);

[0058] A temperature probe module 9 is provided at the movable end of the pressing mechanism 5 on the right side and is used for pressing on the housing of the battery cell;

[0059] A sensor group 10 is provided on the frame 1;

[0060] A PLC11 is respectively connected to the lifting cylinder 3, the pressing mechanism 5, the temperature probe module 9 and the sensor group 10, and is used to control the operation of the negative pressure formation test device 100. In specific implementation, it is only necessary to select a PLC that can realize this function from the existing technology. 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 any creative work.

[0061] The pressing mechanism 5 includes:

[0062] A pair of slide rails 51 are arranged parallel to the interior of the frame 1, and the sliding direction is perpendicular to the transmission direction of the roller transmission line 2;

[0063] Two sliders 52 are slidably connected to one of the slide rails 51 respectively;

[0064] A sliding plate 53 is provided on the top of the two sliding blocks 52;

[0065] A pitch-changing mechanism 54 is provided on the sliding plate 53; the positive probe module 6, the negative pressure system 7, the negative probe module 8, and the temperature probe module 9 are all provided on the pitch-changing mechanism 54, and is used to adjust the distance between the probes of the positive probe module 6, the negative probe module 8, and the temperature probe module 9, and to adjust the distance between the negative pressure nozzles of the negative pressure system 7;

[0066] A change hand wheel 55 is provided on the sliding plate 53 and is rotatably connected to the adjustment end of the pitch changing mechanism 54;

[0067] A pressing cylinder 56 is arranged inside the frame 1, with the power output end connected to the sliding plate 53 and the control end connected to the PLC11, and is used to drive the sliding plate 53 to perform limited sliding, thereby linking the positive probe module 6, the negative pressure system 7, the negative probe module 8 and the temperature probe module 9 to perform horizontal displacement.

[0068] The sensor group 10 includes:

[0069] At least one jacking-in-place detection limit switch 101, provided in the frame 1 and connected to the PLC 11, for detecting whether the pallet is jacked into place;

[0070] At least one pallet in-place detection limit switch 102 is provided in the frame 1, located behind the roller transmission line 2, and connected to the PLC 11, for detecting whether the pallet is in place;

[0071] At least one press-fit detection limit switch 103 is provided in the frame 1 and connected to the PLC 11, and is used to detect whether the positive probe module 6, the negative pressure system 7, the negative probe module 8 and the temperature probe module 9 are press-fitted into place;

[0072] The lifting detection limit switch 101, the tray detection limit switch 102 and the pressing detection limit switch 103 are all photoelectric sensors;

[0073] At least one temperature sensor 104, provided on the frame 1 and connected to the PLC 11, for collecting the temperature value of the environment in real time;

[0074] At least one smoke sensor 105, provided on the frame 1 and connected to the PLC 11, for collecting smoke concentration in the environment in real time;

[0075] At least one CO sensor 106 is provided on the frame 1 and connected to the PLC 11 for collecting the CO concentration of the environment in real time.

[0076] Also includes:

[0077] A metal indicator light 12 is provided on the frame 1 and connected to the PLC 11, and is used to indicate the transport status of the pallet, that is, it lights up when the pallet triggers the pallet in-place detection limit switch 102;

[0078] At least one fire-fighting pipe 13 is provided at the top of the frame 1 .

[0079] The conveying surface of the roller conveying line 2 has an inclination to prevent the pallet from bottoming out and rebounding.

[0080] Working principle of the present invention:

[0081] The pallet loaded with battery cells is guided by the guide sheet metal 4 and transmitted on the roller transmission line 2. When the PLC11 detects that the pallet has been transferred into position through the pallet in position detection limit switch 102, the metal indicator light 12 is controlled to light up, and the lifting cylinder 3 is controlled to lift the pallet until it is detected to be in position through the lifting in position detection limit switch 101; the PLC11 controls the pressing cylinder 56 to press the positive probe module 6, the negative pressure system 7, the negative probe module 8 and the temperature probe module 9 onto the battery cell, and then performs the formation operation on the battery cell.

[0082] In summary, the advantages of the present invention are:

[0083] 1. By setting a roller transmission line in the middle of the frame, a pressing mechanism is arranged on both sides of the roller transmission line, and the positive probe module, negative pressure system, negative probe module and temperature probe module are all arranged on the pressing mechanism, that is, a horizontal structure is adopted to perform the formation operation on the battery cell instead of the traditional vertical structure, thereby greatly reducing the overall height, facilitating the stacking of negative pressure formation test devices or setting a multi-layer structure, and ultimately greatly improving space utilization.

[0084] 2. By setting a pitch-changing mechanism on the sliding plate of the pressing mechanism, the changing handwheel is rotatably connected to the adjustment end of the pitch-changing mechanism, and the positive probe module, negative pressure system, negative probe module and temperature probe module are all arranged on the pitch-changing mechanism. By rotating the changing handwheel, the spacing between the probes of the positive probe module, negative pressure system, negative probe module and temperature probe module can be adjusted to adapt to battery cells of different sizes, thereby greatly improving compatibility.

[0085] 3. By setting up a sensor group including a jacking-in-place detection travel switch, a pallet in-place detection travel switch, a pressing-in-place detection travel switch, a temperature sensor, a smoke sensor and a CO sensor, it can effectively monitor whether the pallet is lifted into place, whether the pallet is transferred into place, whether the positive probe module, the negative pressure system, the negative probe module and the temperature probe module are pressed into place, and collect temperature values, smoke concentrations and CO concentrations in real time. When an abnormality occurs, the work is stopped immediately, thereby greatly improving the safety of the negative pressure formation test device.

[0086] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely 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 within the scope of protection of the claims of the present invention.

Claims

1. A negative pressure formation test device for a double-side output terminal battery cell, characterized by: include: A framework; a roller transmission line disposed in the middle of the interior of the frame; A plurality of lifting cylinders are arranged inside the frame, with the power output ends facing upwards, and are symmetrically located on both sides of the roller transmission line; Two guide sheet metals are arranged in parallel on both sides of the roller transmission line, and the bottom ends are connected to the power output end of the jacking cylinder; Two pressing mechanisms are provided inside the frame and symmetrically located on both sides of the roller transmission line, with the pressing direction both facing the middle; A positive electrode probe module is provided at the movable end of the pressing mechanism on the left side; a negative pressure system, provided at the moving end of the pressing mechanism on the left side; a negative electrode probe module, disposed at the movable end of the pressing mechanism on the right side; A temperature probe module is provided at the movable end of the pressing mechanism on the right side; a sensor group, disposed on the frame; a PLC connected to the lifting cylinder, the pressing mechanism, the temperature probe module, and the sensor group respectively; a metal indicator light, provided on the frame and connected to the PLC; at least one fire hose disposed at the top of the frame; The pressing mechanism comprises: A pair of slide rails are arranged parallel to the interior of the frame, and the sliding direction is perpendicular to the transmission direction of the roller transmission line; Two sliding blocks are respectively connected in sliding manner to one of the slide rails; A sliding plate is provided on the top of the two sliding blocks; A pitch-changing mechanism is provided on the sliding plate; the positive electrode probe module, the negative pressure system, the negative electrode probe module and the temperature probe module are all provided on the pitch-changing mechanism; A change-type hand wheel is provided on the sliding plate and is rotatably connected to the adjustment end of the pitch-changing mechanism; A pressing cylinder is arranged inside the frame, a power output end is connected to the sliding plate, and a control end is connected to the PLC.

2. The negative pressure formation test device for a double-side output terminal battery cell according to claim 1, characterized in that: The sensor group includes: At least one jacking-in-place detection limit switch, disposed in the frame and connected to the PLC; At least one pallet in-place detection travel switch is provided in the frame, located behind the roller transmission line, and connected to the PLC; At least one press-fit detection limit switch, disposed in the frame and connected to the PLC; at least one temperature sensor, disposed on the frame and connected to the PLC; at least one smoke sensor, disposed on the frame and connected to the PLC; At least one CO sensor is disposed on the frame and connected to the PLC.

3. The negative pressure formation test device for a double-side output terminal battery cell according to claim 1, characterized in that: The transmission surface of the roller transmission line has an inclination.

Images