Battery piece electrifying device and equipment

Abstract

The utility model discloses a battery piece electrifying device and equipment, and belongs to the technical field of battery production. Wherein the electrifying mechanism comprises a driving part and a probe row, the driving part is arranged on the rack, the probe row is connected to a movable part of the driving part, and the driving part is used for driving the probe row to descend towards the battery piece from an avoiding high position far away from the battery piece until the probe row is pressed against the end part of a grid line of the battery piece so as to carry out electric connection; the driving part is also used for driving the probe row to be far away from the contacted battery piece and move to an avoiding high position, and the vertical projection of the probe row at the avoiding high position is not intersected with the battery piece below. According to the utility model, the single-side probe row is electrically connected with one side of the battery piece, and the vertical projection of the probe row at the avoiding high position is not intersected with the battery piece below, so that the shielding area of the probe row above the battery piece is reduced, and the influence on another processing result of the battery piece is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a battery chip charging device and equipment. Background Art

[0002] In the production process of battery cells, there are many production or inspection processes that require two treatments to be performed on a battery cell at the same time, such as EL inspection (electrical connection and simultaneous photography), electrical injection annealing (electrical connection and simultaneous light illumination), power inspection (electrical connection and simultaneous illumination), battery efficiency optimization (electrical connection and simultaneous light source scanning), etc.

[0003] The existing treatment usually uses a frame equipped with fixed probes to form an electrical connection with the grid lines of the battery cell. This arrangement forms a large shielding above the battery cell during the treatment process, thereby affecting the progress of another treatment. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the utility model provides a battery cell power-on device and equipment, which adopts the following technical scheme: the battery cell power-on device includes a frame and two groups of power-on mechanisms arranged on the frame at intervals, and the two groups of power-on mechanisms are respectively electrically connected to the two ends of the grid line of the same battery cell;

[0005] The power-on mechanism comprises a driving part and a probe row, wherein:

[0006] The driving part is arranged on the frame, and the probe row is connected to the movable part of the driving part;

[0007] The driving unit is used to drive the probe row to descend from a high avoidance position away from the battery cell toward the battery cell until it is pressed against the end of the gate line of the battery cell to make an electrical connection; the driving unit is also used to drive the probe row away from the contacting battery cell and move to a high avoidance position, and the vertical projection of the probe row at the high avoidance position does not intersect with the battery cell below.

[0008] The driving unit drives the probe row from the avoidance high position to press against the battery cell to achieve electrical connection, and can drive the probe row to rise from the state of pressing against the battery cell to the avoidance high position to reduce the shielding area of ​​the probe row above the battery cell, thereby reducing the impact on another processing result of the battery cell.

[0009] In some embodiments, the driving part includes a first lifting drive module, a mounting assembly and a guide plate, wherein: the mounting assembly can be lifted and connected to the frame and is connected to the driving end of the first lifting drive module, the guide plate is fixedly mounted on the frame, and a first guide groove is arranged on the guide plate; the probe row is mounted on the mounting assembly, and a first guide member is arranged on the mounting assembly, and the first guide member is built into the first guide groove; the first lifting drive module drives the mounting assembly to lift and lower, and the mounting assembly and the probe row move under the guidance of the first guide member and the first guide groove.

[0010] By arranging a first guide member on the mounting assembly and opening a first guide groove on the guide plate for use with the first guide member, the first lifting drive module can drive the mounting assembly and the probe row to move along the motion trajectory of the first guide member in the first guide groove when lifting.

[0011] In some embodiments, the first guide groove extends to form a first inclined guide section and a first vertical guide section, and the tail end of the first inclined guide section is smoothly connected to the head end of the first vertical guide section; when the first lifting drive module drives the mounting assembly to descend, the first guide member slides along the first inclined guide section and the first vertical guide section in sequence, so that the probe row moves to contact the gate line end of the battery cell to achieve electrical connection.

[0012] A guide groove is provided, so that the probe row can move obliquely downward and then vertically downward or rise vertically and then move obliquely upward through the guide groove, so that when the probe row is pressed against the battery cell at the avoidance high position or moves away from the battery cell and moves to the avoidance high position, it can vertically leave the grid line upward or vertically contact the grid line downward to prevent scratching the battery cell.

[0013] In some embodiments, the mounting assembly includes a mounting frame, a sliding rod, a slider and a mounting plate, wherein: the mounting frame is slidably and liftably connected to the frame and is connected to the driving end of the first lifting drive module; the sliding rod is arranged in the mounting frame along the horizontal direction, the slider is slidably installed on the sliding rod, the mounting plate is fixedly installed on the slider, and the first guide member is arranged at the end of the mounting plate; the probe row is installed on the mounting plate.

[0014] The mounting frame is lifted and lowered on the frame through the first lifting drive module, and the first guide member is moved along the track of the first guide groove. The first guide member also drives the slider and the mounting plate connected to the slider to move horizontally on the slide rod, thereby driving the probe row to move along the track of the first guide groove.

[0015] In some embodiments, the first lifting drive module includes a first motor, a screw rod, a screw rod nut and a connecting block, wherein: the first motor is arranged on the frame, the screw rod is connected to the power output end of the first motor in the vertical direction, and the screw rod nut is screwed on the screw rod; the connecting block is fixedly connected to the screw rod nut, and the mounting assembly is connected to the connecting block.

[0016] The first motor drives the lead screw to rotate, causing the lead screw nut to make up and down linear motion along the vertically arranged lead screw, thereby driving the connecting block fixed on the lead screw nut and the mounting assembly connected to the connecting block to make up and down reciprocating linear motion, providing power for the movement of the probe row.

[0017] In some embodiments, the driving part includes a second lifting driving module, a linkage module and a mounting frame, wherein: the mounting frame is installed on the frame, the linkage module is installed on the mounting frame, and the movable part of the second lifting driving module is connected to the linkage module; a second guide groove is provided on the mounting frame, a second guide member is provided on the linkage module, and the second guide member is accommodated in the second guide groove on the mounting frame; the probe row is installed on the linkage module; the second lifting driving module is used to drive the linkage module to lift and lower, and the probe row moves under the guidance of the second guide member and the second guide groove.

[0018] By providing a second guide member on the linkage module and opening a second guide groove on the mounting frame for use with the second guide member, the movable part of the second lifting drive module drives the linkage module to rise and fall when working, so that the probe row installed on the linkage module moves along the motion trajectory of the second guide member in the second guide groove.

[0019] In some embodiments, the mounting frame includes two symmetrically arranged vertical plates, each vertical plate is provided with a second guide groove, the second guide groove extends to form a second inclined guide section and a second vertical guide section, the tail end of the second inclined guide section is smoothly connected with the head end of the second vertical guide section; when the second lifting drive module drives the linkage module to descend, the second guide member slides along the second inclined guide section and the second vertical guide section in turn, so that the probe row moves to contact the gate line end of the battery cell to achieve electrical connection.

[0020] By opening a second guide groove on a symmetrically arranged vertical plate, the second guide member is moved along the shape of the second guide groove, so that the probe row can be moved obliquely downward and then vertically downward, or vertically raised and then obliquely upward. When the probe row is pressed against the battery cell or moves away from the battery cell and moves to the avoidance high position, the probe row can vertically leave the grid line upward or vertically contact the grid line downward to prevent scratches on the battery cell.

[0021] In some embodiments, the linkage module includes a transmission rod group, a fixed block, two cross slide rails and a guide seat, wherein: the two cross slide rails are respectively installed on the frame, the lower end of the transmission rod group is connected to the fixed block, and the two ends of the fixed block are respectively installed on the two cross slide rails; the guide seat is installed on the fixed block, and a second guide member is respectively provided at both ends of the guide seat.

[0022] The fixed block and the guide seat connected to the fixed block are driven by the transmission rod group, so that the second guide member installed on the guide seat moves along the trajectory in the second guide groove, and at the same time, the fixed block moves left and right or up and down on the cross slide rail, ensuring that the probe row installed on the linkage module moves along the movement trajectory of the second guide member in the second guide groove.

[0023] In some embodiments, the second lifting drive module includes a rotation drive unit and a rotating shaft, and the transmission rod group includes a first transmission arm and a second transmission arm, wherein: the driving end of the rotation drive unit is transmission-connected to the rotating shaft, and both ends of the rotating shaft are rotatably mounted on the two vertical plates; the first end of the first transmission arm is fixedly mounted on the rotating shaft, the second end of the first transmission arm is hinged to the first end of the second transmission arm, and the second end of the second transmission arm is connected to the fixed block.

[0024] The rotating shaft is driven to rotate by the rotary drive unit, and the rotation of the rotating shaft drives the first transmission arm to rotate, so that the second transmission arm hinged to the first transmission arm and the fixed block connected to the second transmission arm make a circular motion with the hinge point of the first transmission arm and the second transmission arm as the particle point, thereby driving the probe row to move.

[0025] In some embodiments, the rotation drive unit includes a second motor, a reducer, a driving pulley, a synchronous belt and a driven pulley, wherein the input end of the reducer is connected to the power output end of the second motor, the driving pulley is fixedly mounted on the power output end of the reducer, the driven pulley is fixedly mounted on the end of the rotating shaft, and the synchronous belt is sleeved on the driving pulley and the driven pulley.

[0026] The speed reducer reduces the rotation speed of the output end of the second motor, drives the driving pulley to rotate, and at the same time, the synchronous belt rotates the driven pulley, thereby driving the rotating shaft to rotate.

[0027] In some embodiments, a plurality of probes are installed on the probe row, and the probes include a sleeve, a spring and a needle body, wherein: the sleeve is installed on the probe row; one end of the spring is installed on the inner wall of the sleeve; one end of the needle body extends into the sleeve and abuts against the other end of the spring, and the other end of the needle body is used to press against one end of the battery cell.

[0028] When one end of the needle body rests against the grid line of the battery cell, the other end of the needle body applies pressure to the spring, compressing the spring, and achieving a stable electrical connection between the needle body and the battery cell; when the needle body moves away from the battery cell, the spring stretches and recovers its deformation.

[0029] In some embodiments, a plurality of second probes are installed on the probe row, and the second probes have the same structure as the first probes. One end of the needle body of at least two adjacent second probes extends into the sleeve, and the other end of the needle body of at least two adjacent second probes is connected to the conductive block, which is used to press against one end of the battery cell.

[0030] The probe contacts the grid line part of the battery cell through the conductive block, which can produce the following beneficial effects: preventing the battery cell from being cracked or even broken due to inconsistent pressure caused by uneven probes; preventing the probe needle from exerting too much pressure on the battery cell and leaving an indentation; preventing the surface of the battery cell support platform from being uneven due to excessive contact pressure of the probe.

[0031] The battery cell power-on device comprises two sets of battery cell power-on devices as shown above, which are arranged side by side. The two sets of battery cell power-on devices electrically connect the two battery cells placed side by side at the same time.

[0032] By placing two battery cell power-on devices side by side, the two battery cells are electrically connected at the same time, thereby improving the detection efficiency.

[0033] Beneficial effect: by arranging two groups of power-on mechanisms at intervals on the frame, the power-on mechanism on one side of the frame drives the probe row from a high avoidance position away from the battery cell through a driving unit to move along the movement trajectory of the guide member in the guide groove until it is pressed against the end of the gate line of the battery cell, thereby realizing the electrical connection of one side of the battery cell by the single-sided probe row; and the power-on mechanism drives the probe row along the movement trajectory of the guide member in the guide groove through the driving unit, away from the contacted battery cell and moving to the high avoidance position, and at the same time, the vertical projection of the probe row at the high avoidance position does not intersect with the battery cell below, so as to reduce the shielding area of ​​the probe row above the battery cell, thereby reducing the impact on the result of another process of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic structural diagram of a power-on device according to the utility model using the first embodiment as a driving part.

[0035] Figure 2 It is a schematic diagram of the structure of the first embodiment and the probe row in the utility model.

[0036] Figure 3 This is a schematic structural diagram of another viewing angle of Example 1 and the probe row in the utility model.

[0037] Figure 4It is a schematic diagram of the installation structure of the installation component and the guide plate in the first embodiment of the present utility model.

[0038] Figure 5 It is a schematic structural diagram of a power-on device according to the utility model using the second embodiment as the driving part.

[0039] Figure 6 It is a schematic diagram of the structure of the second embodiment and the probe row in the utility model.

[0040] Figure 7 This is a schematic structural diagram of another viewing angle of the second embodiment of the present invention and the probe row.

[0041] Figure 8 It is a schematic diagram of the installation structure of the linkage module, the installation frame and the probe row in the second embodiment of the present utility model.

[0042] Fig. 9 It is a schematic diagram of the installation structure of the linkage module and the probe row in the second embodiment of the present utility model.

[0043] Fig.10 It is a schematic diagram of the structure of the power-on device of the utility model with the first embodiment as the driving part.

[0044] Reference numerals;

[0045] 100, power-on mechanism; 200, frame; 300, drive unit; 400, probe row;

[0046] 11. first motor; 12. screw nut; 13. connecting block; 14. screw;

[0047] 21. Mounting frame; 22. Sliding rod; 23. Sliding block; 24. Mounting plate;

[0048] 3. guide plate; 31. first guide groove; 32. first guide member;

[0049] 41. second motor; 42. reducer; 43. synchronous belt; 44. driving pulley; 45. driven pulley; 46. rotating shaft;

[0050] 51. first transmission arm; 52. second transmission arm; 53. cross slide rail; 54. fixing block; 55. guide seat;

[0051] 6. Mounting frame; 61. Second guide groove; 62. Second guide member; 63. Vertical plate. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0053] like Fig.10 The utility model provides a battery cell power-on device, comprising a frame 200 and two sets of power-on mechanisms 100 spaced apart on the frame 200, the two sets of power-on mechanisms 100 are respectively electrically connected to the two ends of the grid line of the same battery cell;

[0054] like Figure 1 The power-on mechanism 100 includes a driving unit 300 and a probe row 400, wherein the driving unit 300 is arranged on the frame 200, and the probe row 400 is connected to the movable part of the driving unit 300; the driving unit 300 is used to drive the probe row 400 to descend from a high avoidance position away from the battery cell toward the battery cell until it is pressed against the end of the grid line of the battery cell to make an electrical connection; the driving unit 300 is also used to drive the probe row 400 to move away from the contacted battery cell and to the high avoidance position, and the vertical projection of the probe row 400 at the high avoidance position does not intersect with the battery cell below.

[0055] It can be seen that the power-on device on one side of the rack 200 drives the probe row 400 from the avoidance high position to press against the battery cell through the driving unit 300, so as to realize the electrical connection of the single-sided probe row 400 to one side of the battery cell, and can drive the probe row 400 to be lifted from the state of pressing against the battery cell to the avoidance high position, so as to reduce the shading area of ​​the probe row 400 above the battery cell, and finally reduce the impact on another processing result of the battery cell, such as reducing the shading of the laser module, simulated sunlight module, camera module, etc.

[0056] like Figures 2 to 3 As shown, in the first embodiment, the driving unit 300 includes a first lifting driving module, a mounting assembly and a guide plate 3 .

[0057] The mounting assembly is liftably connected to the frame 200 and is connected to the driving end of the first lifting drive module. The guide plate 3 is fixedly mounted on the frame 200, and a first guide groove is provided on the guide plate 3; the probe row 400 is mounted on the mounting assembly, and a first guide member 32 is provided on the mounting assembly, and the first guide member 32 is built into the first guide groove 31; the first lifting drive module drives the mounting assembly to rise and fall, and the mounting assembly and the probe row 400 move under the guidance of the first guide member 32 and the first guide groove 31, so that the probe row 400 is pressed against the battery cell to achieve electrical connection or moves away from the battery cell to a high position for avoidance.

[0058] Furthermore, the first guide groove 31 extends to form a first inclined guide section and a first vertical guide section, and the tail end of the first inclined guide section is smoothly connected to the head end of the first vertical guide section; when the first lifting drive module drives the installation assembly to descend, the first guide member 32 slides along the first inclined guide section and the first vertical guide section in turn, so that the probe row 400 moves and finally contacts the gate line end of the battery cell to achieve electrical connection.

[0059] A guide groove is provided, so that the probe row 400 can move obliquely downward and then vertically downward through the guide groove, so that when the probe row 400 is pressed against the battery cell in the avoidance high position, it can contact the grid line vertically downward to prevent scratching the battery cell; the probe row 400 can also be vertically raised and then moved obliquely upward through the guide groove, so that when the probe row 400 is away from the battery cell and moves to the avoidance high position, it can leave the grid line vertically upward to prevent scratching the battery cell.

[0060] Optional, such as Figure 4 As shown, the installation assembly includes an installation frame 21, a slide bar 22, a slider 23 and a mounting plate 24. The installation frame 21 is slidably connected to the frame 200 and is connected to the driving end of the first lifting drive module; the slide bar 22 is arranged in the installation frame 21 along the horizontal direction, the slider 23 is slidably installed on the slide bar 22, the mounting plate 24 is fixedly installed on the slider 23, and the first guide member 32 is arranged at the end of the mounting plate 24; the probe row 400 is installed on the mounting plate 24; when the installation frame 21 is lifted and lowered on the frame 200 by the first lifting drive module, the first guide member 32 is moved along the track of the first guide groove at the same time, and the first guide member 32 drives the mounting plate 24 and the slider 23 to move horizontally on the slide bar 22, so that the probe row 400 moves along the movement track of the first guide member 32 in the first guide groove.

[0061] like Figure 2-3 Optionally, the first lifting drive module includes a first motor 11, a screw rod 14, a screw rod nut 12 and a connecting block 13. The first motor 11 is arranged on the frame 200, the screw rod 14 is connected to the power output end of the first motor 11 in the vertical direction, and the screw rod nut 12 is screwed on the screw rod 14; the connecting block 13 is fixedly connected to the screw rod nut 12, and the mounting assembly is fixedly connected to the connecting block 13. The first motor 11 drives the vertically arranged screw rod 14 to rotate, so that the screw rod nut 12, the connecting block 13 and the mounting assembly perform reciprocating linear motion up and down.

[0062] When the first motor 11 rotates, the screw 14 rotates, driving the screw nut 12 to make a reciprocating linear motion up and down, thereby making the connecting block 13 and the mounting frame 21 rise and fall, and at the same time driving the first guide member 32 to slide in the first guide groove. The first guide member 32 drives the mounting plate 24 and the slider 23 to move horizontally on the slide rod 22, so that the probe row 400 moves along the sliding track of the first guide member 32 in the first guide groove, so that the probe row 400 is pressed against one end of the battery cell to achieve electrical connection, or the probe row 400 rises away from the battery cell to a high position to avoid.

[0063] like Figure 5-6 As shown, in the second embodiment, the driving unit 300 includes a second lifting driving module, a linkage module and a mounting frame 6 .

[0064] like Figure 6-7 As shown, the mounting frame 6 is mounted on the frame 200, the linkage module is mounted on the mounting frame 6, and the movable part of the second lifting drive module is connected to the linkage module; a second guide groove 61 is provided on the mounting frame 6, and a second guide member 62 is provided on the linkage module, and the second guide member 62 is accommodated in the second guide groove 61 on the mounting frame 6; the probe row 400 is mounted on the linkage module; the second lifting drive module is used to drive the linkage module to rise and fall, and the probe row 400 moves under the guidance of the second guide member 62 and the second guide groove 61, so that the probe row 400 is pressed against the battery cell to achieve electrical connection or moves away from the battery cell to a high position for avoidance.

[0065] Optionally, the mounting frame 6 includes two symmetrically arranged vertical plates 63, each vertical plate 63 is provided with a second guide groove 61, the second guide groove 61 extends to form a second inclined guide section and a second vertical guide section, the tail end of the second inclined guide section is smoothly connected with the head end of the second vertical guide section; when the second lifting drive module drives the linkage module to descend, the second guide member 62 slides along the second inclined guide section and the second vertical guide section in turn, so that the probe row 400 moves to contact the gate line end of the battery cell to achieve electrical connection.

[0066] By providing a second guide groove 61 on the vertical plate 63 that matches the second guide member 62 installed on the linkage module, the probe row 400 installed on the linkage module can be moved downward obliquely first and then vertically downward, so that when the probe row 400 is pressed against the battery cell at the avoidance high position, it can contact the grid line vertically downward to prevent scratching the battery cell; the probe row 400 can also be vertically raised and then moved upward obliquely, so that when the probe row 400 is away from the battery cell and moves to the avoidance high position, it can leave the grid line vertically upward to prevent scratching the battery cell

[0067] like Figure 8 and Fig. 9 As shown, optionally, the linkage module includes a transmission rod group, a fixed block 54, two cross slides 53 and a guide seat 55, the two cross slides 53 are respectively installed on the frame 200, the lower end of the transmission rod group is connected to the fixed block 54, and the two ends of the fixed block 54 are respectively installed on the two cross slides 53; the guide seat 55 is installed on the fixed block 54, and the two ends of the guide seat 55 are respectively provided with a second guide member 62, and the fixed block 54 and the guide seat 55 are driven by the transmission assembly to move along the movement trajectory of the second guide member 62, and at the same time, the fixed block 54 is moved left and right or up and down on the cross slide 53, so that the probe row 400 installed on the linkage module moves along the movement trajectory of the second guide member 62 in the second guide groove 61.

[0068] like Figure 7Optionally, the second lifting drive module includes a rotation drive unit and a rotating shaft 46. The driving end of the rotation drive unit is transmission-connected with the rotating shaft 46, and the two ends of the rotating shaft 46 are rotatably mounted on the two vertical plates 63. The rotation drive unit includes a second motor 41, a reducer 42, a driving pulley 44, a synchronous belt 43 and a driven pulley 45. The input end of the reducer 42 is connected to the power output end of the second motor 41, the driving pulley 44 is fixedly mounted on the power output end of the reducer 42, the driven pulley 45 is fixedly mounted on the end of the rotating shaft 46, and the synchronous belt 43 is sleeved on the driving pulley 44 and the driven pulley 45; the rotation speed of the output end of the second motor 41 is reduced by the reducer 42, and the driving pulley 44 is driven to rotate, and the driven pulley 45 is rotated by the synchronous belt 43, thereby driving the rotating shaft 46 to rotate.

[0069] like Figure 8-9 Optionally, the transmission rod group includes a first transmission arm 51 and a second transmission arm 52, the first end of the first transmission arm 51 is fixedly mounted on the rotating shaft 46, the second end of the first transmission arm 51 is hinged to the first end of the second transmission arm 52, and the second end of the second transmission arm 52 is connected to the fixed block 54. The rotation of the rotating shaft 46 drives the first transmission arm 51 to rotate, so that the second transmission arm 52 and the fixed block 54 make a circular motion with the hinge point of the first transmission arm 51 and the second transmission arm 52 as the mass point, thereby driving the probe row 400 to move.

[0070] When the second motor 41 rotates, it drives the reducer 42 to rotate, and drives the rotating shaft 46 to rotate through the cooperation of the active pulley 44, the synchronous belt 43 and the driven pulley 45. The rotating shaft 46 drives the first transmission arm 51 to rotate, so that the second transmission arm 52 can perform a circular motion with the hinge point of the first transmission arm 51 and the second transmission arm 52 as the particle point, so that the fixed block 54 and the guide seat 55 can move along the sliding trajectory of the second guide rod in the second guide groove 61. At the same time, the fixed block 54 moves left and right or up and down on the cross slide rail 53, so that the probe row 400 installed on the linkage module can move along the movement trajectory of the second guide member 62 in the second guide groove 61, so that the probe row 400 is pressed against one end of the battery cell to achieve electrical connection, or the probe row 400 is moved away from the battery cell to an avoidance high position.

[0071] Optionally, a plurality of first probes are installed on the probe row 400, and the first probes include a sleeve, a spring and a needle body. The sleeve is installed on the probe row 400; one end of the spring is installed on the inner wall of the sleeve; one end of the needle body extends into the sleeve and abuts against the other end of the spring, and the other end of the needle body is used to press against one end of the battery cell to achieve electrical connection.

[0072] Optionally, the probe row can also be installed with a plurality of second probes, which have the same structure as the first probe, and both include a sleeve, a spring and a needle body. When the probes on the probe row 400 are all second probes, one end of at least two adjacent needle bodies extends into the sleeve, and the other end of at least two adjacent needle bodies is connected to a conductive block, which is used to press against one end of the battery cell. The conductive block can be made of metals with excellent conductivity such as copper and iron.

[0073] Such an arrangement can make the conductive block form electrical contact with the grid line part of the battery cell, which can produce at least one of the following beneficial effects: 1. Avoid inconsistent pressure caused by uneven probes, which in turn causes hidden cracks or even breakage of the battery cell; 2. Avoid excessive pressure of the probe needle on the battery cell, leaving indentations after crimping; 3. Avoid uneven surface of the battery cell support platform due to excessive contact pressure of the probe.

[0074] like Fig.10 As shown, the utility model also provides a battery power-on device, optionally, the device includes two sets of battery power-on devices arranged side by side. Figure 1 The battery cell power-on device shown in the figure has two sets of battery cell power-on devices that electrically connect two battery cells placed side by side at the same time, and can electrically connect two battery cells at the same time, thereby improving the detection efficiency.

[0075] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.

Claims

1. A battery cell power-on device, characterized in that: The cell power-on device comprises a frame and two groups of power-on mechanisms spaced apart on the frame, wherein the two groups of power-on mechanisms are electrically connected to two ends of a grid line of the same cell respectively; The power-on mechanism comprises a driving part and a probe row, wherein: The driving part is arranged on the frame, and the probe row is connected to the movable part of the driving part; The driving unit is used to drive the probe row to descend from a high avoidance position away from the battery cell toward the battery cell until it is pressed against the end of the gate line of the battery cell to make an electrical connection; the driving unit is also used to drive the probe row away from the contacting battery cell and move to a high avoidance position, and the vertical projection of the probe row at the high avoidance position does not intersect with the battery cell below.

2. The battery cell power-on device according to claim 1, characterized in that: The driving part includes a first lifting driving module, a mounting assembly and a guide plate, wherein: The mounting assembly is levitationally connected to the frame and is connected to the driving end of the first lifting driving module. The guide plate is fixedly mounted on the frame, and a first guide groove is provided on the guide plate. The probe row is mounted on the mounting assembly, and a first guide member is provided on the mounting assembly, and the first guide member is built into the first guide groove; The first lifting drive module drives the mounting assembly to move up and down, and the mounting assembly and the probe row move under the guidance of the first guide member and the first guide groove.

3. The battery cell power-on device according to claim 2, characterized in that: The first guide groove extends to form a first inclined guide section and a first vertical guide section, and the tail end of the first inclined guide section is smoothly connected to the head end of the first vertical guide section; When the first lifting drive module drives the mounting assembly to descend, the first guide member slides along the first inclined guide section and the first vertical guide section in sequence, so that the probe row moves to contact the gate line end of the battery cell to achieve electrical connection.

4. The battery cell power-on device according to claim 2, characterized in that: The installation assembly includes an installation frame, a slide bar, a slide block and a mounting plate, wherein: The installation frame is slidably and liftably connected to the frame and is connected to the driving end of the first lifting driving module; The slide bar is arranged in the installation frame along the horizontal direction, the slider is slidably installed on the slide bar, the installation plate is fixedly installed on the slider, and the first guide member is arranged at the end of the installation plate; The probe row is mounted on the mounting plate.

5. The battery cell power-on device according to claim 2, characterized in that: The first lifting drive module includes a first motor, a lead screw, a lead screw nut and a connecting block, wherein: The first motor is arranged on the frame, the screw rod is connected to the power output end of the first motor in a vertical direction, and the screw rod nut is screwed on the screw rod; The connecting block is fixedly connected to the screw nut, and the mounting assembly is connected to the connecting block.

6. The battery cell power-on device according to claim 1, characterized in that: The driving part includes a first and a second lifting driving module, a linkage module and a mounting frame, wherein: The mounting frame is mounted on the frame, the linkage module is mounted on the mounting frame, and the movable part of the second lifting drive module is connected to the linkage module; The mounting frame is provided with a second guide groove, the linkage module is provided with a second guide member, and the second guide member is accommodated in the second guide groove on the mounting frame; The probe row is installed on the linkage module; The second lifting drive module is used to drive the linkage module to lift, and the probe row moves under the guidance of the second guide member and the second guide groove.

7. The battery cell power-on device according to claim 6, characterized in that: The mounting frame comprises two symmetrically arranged vertical plates, each of which is provided with a second guide groove, the second guide groove extends to form a second inclined guide section and a second vertical guide section, and the tail end of the second inclined guide section is smoothly connected with the head end of the second vertical guide section; When the second lifting drive module drives the linkage module to descend, the second guide member slides along the second inclined guide section and the second vertical guide section in sequence, so that the probe row moves to contact the gate line end of the battery cell to achieve electrical connection.

8. The battery cell power-on device according to claim 7, characterized in that: The linkage module includes a transmission rod group, a fixed block, two cross slide rails and a guide seat, wherein: The two cross slides are respectively mounted on the frame, the lower end of the transmission rod group is connected to the fixed block, and the two ends of the fixed block are respectively mounted on the two cross slides; The guide seat is installed on the fixing block, and the two ends of the guide seat are respectively provided with a second guide member.

9. The battery cell power-on device according to claim 8, characterized in that: The second lifting drive module includes a rotation drive unit and a rotating shaft, and the transmission rod group includes a first transmission arm and a second transmission arm, wherein: The driving end of the rotation driving unit is drivingly connected to the rotating shaft, and both ends of the rotating shaft are rotatably mounted on the two vertical plates; The first end of the first transmission arm is fixedly mounted on the rotating shaft, the second end of the first transmission arm is hinged to the first end of the second transmission arm, and the second end of the second transmission arm is connected to the fixing block.

10. The battery cell power-on device according to claim 9, characterized in that: The rotary drive unit includes a second motor, a reducer, a driving pulley, a synchronous belt and a driven pulley, wherein the input end of the reducer is connected to the power output end of the second motor, the driving pulley is fixedly mounted on the power output end of the reducer, the driven pulley is fixedly mounted on the end of the rotating shaft, and the synchronous belt is sleeved on the driving pulley and the driven pulley.

11. The battery cell power-on device according to claim 1, characterized in that: A plurality of first probes are mounted on the probe row, wherein the first probes include a sleeve, a spring and a needle body, wherein: The sleeve is mounted on the probe row; One end of the spring is mounted on the inner wall of the sleeve; One end of the needle body extends into the sleeve and abuts against the other end of the spring, and the other end of the needle body is used to press against one end of the battery sheet.

12. The battery cell power-on device according to claim 11, characterized in that: A plurality of second probes are installed on the probe row. The second probes have the same structure as the first probes. One end of the needle body of at least two adjacent second probes extends into the sleeve, and the other end of the needle body of at least two adjacent second probes is connected to a conductive block. The conductive block is used to press against one end of the battery cell.

13. A battery cell power-on device, characterized in that: The battery cell power-on device comprises two sets of battery cell power-on devices as described in any one of claims 1 to 12 arranged side by side, and the two sets of battery cell power-on devices electrically connect two battery cells placed side by side at the same time.

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