CN110884096A

CN110884096A - FPC of electricity core mechanism of bending

Info

Publication number: CN110884096A
Application number: CN201911342254.0A
Authority: CN
Inventors: 宋海肖; 吴丰礼
Original assignee: Guangdong Topstar Technology Co Ltd
Current assignee: Dongguan Nvt Technology Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-03-17
Anticipated expiration: 2039-12-23
Also published as: CN110884096B

Abstract

The invention discloses an FPC (flexible printed circuit) bending mechanism of a battery cell, which is suitable for bending the FPC of the battery cell clamped in a material die. The mechanism frame body comprises a foot rest and a cross beam, and the lifting driving device is arranged on the cross beam; the overturning driving device comprises an overturning driver and an overturning seat; the clamping jaw is arranged on the overturning seat; the sliding locking block is arranged on the material die in a sliding manner and is provided with a blocking position and an avoiding position; the locking block driving device is arranged at the output end of the lifting driving device; the clamping jaw clamps the FPC under the matching of the lifting driving device and the overturning driving device and enables the FPC to bend upwards at a preset angle around the material mould, the sliding locking block slides to a blocking position under the matching of the lifting driving device and the locking block driving device, and the sliding locking block at the blocking position blocks the resilience of the bent FPC; so as to realize the reliable bending of the FPC.

Description

FPC of electricity core mechanism of bending

Technical Field

The invention relates to the field of battery cell manufacturing, in particular to an FPC (flexible printed circuit) bending mechanism of a battery cell.

Background

In the life of people, batteries, especially lithium batteries, cannot be used; because of its rechargeable and environment-friendly properties, lithium batteries are widely used in electronic products.

As is well known, a Flexible Printed Circuit (FPC) is popular among users because of its excellent characteristics such as light weight, thin thickness, and free bending and folding, as one of important components for transmitting signals inside a battery cell of a lithium battery. In the production process of the battery core of the lithium battery, after the flexible circuit board is pasted on the lug of the battery core, the flexible circuit board needs to be bent for the first time, then the battery core with the flexible circuit board is placed into an injection mold in an injection molding system to be molded in the mold, so that an insulating protective shell covers the surface of the battery core, and finally, the flexible circuit board is bent for the second time to form the manufacturing of the lithium battery.

However, in the bending of the flexible circuit board, the flexible circuit board is manually operated, time and labor are wasted, the flexible circuit board is easily affected by subjective factors of operators, and the product quality and the precision are difficult to guarantee.

Therefore, it is highly desirable to provide a cell FPC bending mechanism with accurate, reliable and automatic FPC bending degree to overcome the above-mentioned defects.

Disclosure of Invention

The invention aims to provide a cell FPC bending mechanism which is accurate and reliable in FPC bending and has automation degree to save time and labor.

In order to achieve the purpose, the invention provides an FPC bending mechanism of a battery cell, which is suitable for bending the FPC of the battery cell clamped in a material die. The mechanism frame body comprises a foot rest and a cross beam which is connected with the foot rest in an installing mode, and the cross beam is suspended above the FPC of the battery cell in the material die correspondingly; the lifting driving device is arranged on the cross beam; the overturning driving device comprises an overturning driver arranged at the output end of the lifting driving device and an overturning seat arranged at the output end of the overturning driver; the clamping jaw is arranged on the overturning seat; the locking block driving device is arranged at the output end of the lifting driving device; the clamping jaw clamps the FPC and enables the FPC to bend upwards around the material die by a preset angle under the cooperation of the lifting driving device and the overturning driving device, the sliding locking block slides to the blocking position under the cooperation of the lifting driving device and the locking block driving device, and the sliding locking block at the blocking position blocks the resilience of the bent FPC.

Preferably, the FPC bending mechanism for the electrical core of the present invention further includes an auxiliary flattening device, where the auxiliary flattening device includes an auxiliary flattening driver mounted on the foot rest and an auxiliary flattening block mounted at an output end of the auxiliary flattening driver, the auxiliary flattening block is aligned with the bent FPC along a length direction of the cross beam, and the auxiliary flattening block flattens the FPC from a side where the FPC is rebounded in the FPC bending process.

Preferably, the material die is provided with an embedded groove for embedding the FPC into the material die in the upward bending process of the FPC, the embedded groove is closed when the sliding locking block slides to the blocking position, and the embedded groove is opened when the sliding locking block slides to the avoiding position.

Preferably, the FPC bending mechanism for the electrical core of the present invention further includes a distance meter mounted on the foot rest and located outside one side of the FPC where the FPC rebounds, the distance meter is aligned with the side surface of the FPC and the surface where the notch of the embedding groove is located along the length direction of the cross beam, respectively, and the surface where the notch is located is in sliding contact with the sliding lock block.

Preferably, the auxiliary flattening device is located outside one side of the FPC in springback, and the auxiliary flattening device is also located right above the range finder.

Preferably, the lifting driving device comprises a lifting driver mounted on the beam and having an output end arranged downward, and a lifting seat mounted on an output end of the lifting driver, and the turnover driver and the lock block driving device are mounted on the lifting seat respectively.

Preferably, the FPC bending mechanism of the electrical core of the present invention further includes a displacement driver mounted on the lifting seat and a displacement seat that is displaced along the sliding direction of the sliding lock block, and the flip driver and the lock block driving device are respectively mounted on the displacement seat.

Preferably, the locking piece driving device includes a locking piece driver installed side by side with the turning driver and a locking piece pushing frame installed at an output end of the locking piece driver, output ends of the turning driver and the locking piece driver are parallel to each other, the locking piece pushing frame is aligned with the sliding locking piece along a sliding direction of the sliding locking piece, and the locking piece pushing frame is further located between the sliding locking piece and the overturning seat along the sliding direction of the sliding locking piece.

Preferably, the FPC bending mechanism for the battery cell further includes a translation seat slidably disposed on the cross beam along the length direction of the cross beam, and a translation driving device for driving the translation seat to translate on the cross beam, the lifting driver is mounted on the translation seat, and the translation driving device is mounted between the cross beam and the translation seat.

Preferably, the translation driving device comprises a translation screw rod arranged along the length direction of the cross beam and a translation nut slidably sleeved on the translation screw rod, the translation nut is mounted on the translation seat, the translation screw rod is rotatably mounted on the cross beam, and a manual operating wheel is mounted at the end of the translation screw rod.

Compared with the prior art, by means of the cooperation of the mechanism frame body, the lifting driving device, the overturning driving device, the clamping jaw for clamping the FPC of the battery cell in the material die, the sliding locking block which is arranged on the material die in a sliding way and provided with a blocking position and an avoiding position relative to the material die, and the locking block driving device for driving the sliding locking block to slide from the avoiding position to the blocking position, the lifting driving device drives the overturning driving device, the locking block driving device and the clamping jaw to move close to the material die together, and the clamping jaw directly moves to the position of the FPC of the battery cell for clamping the material die and the locking block driving device moves to the position aligned with the sliding locking block; then, the turnover driver of the turnover driving device drives the turnover seat to turn upwards so that the turnover seat which turns upwards drives the clamping jaw to move upwards, the clamping jaw which moves upwards bends the FPC around the material mould by a preset angle (for example, 90 degrees), at the moment, the locking block driving device drives the sliding locking block to slide to the blocking position from the avoiding position, the sliding locking block which is positioned at the blocking position blocks the resilience of the bent FPC, the resilience of the bent FPC is prevented, on one hand, the bending reliability of the FPC of the battery cell is ensured, and the subsequent production process is ensured; on the other hand, the automation degree saves time and labor.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a cell FPC bending mechanism of the cell of the present invention after bending the FPC of the cell clamped in a mold.

Fig. 2 is a schematic perspective view of the FPC bending mechanism of the battery cell shown in fig. 1 after the auxiliary flattening device and the distance meter are hidden.

Fig. 3 is a schematic view of a three-dimensional structure of the FPC bending mechanism of the battery cell shown in fig. 1 after the auxiliary flattening device, the distance meter, and the material mold are hidden.

Fig. 4 is a schematic perspective view of a material mold equipped with a battery core when a sliding lock block is in a blocking position.

Fig. 5 is a schematic perspective view of a material mold equipped with a battery core when a sliding lock block is in an avoidance position.

Fig. 6 is a schematic perspective view of the three-dimensional structure of the turning driving device, the locking block driving device, the displacement driver and the displacement seat in the FPC bending mechanism for battery cells according to the present invention.

Fig. 7 is a schematic perspective view of an auxiliary flattening device in the FPC bending mechanism for a battery cell of the present invention.

Fig. 8 is a schematic perspective view of a distance meter in the FPC bending mechanism for a battery cell of the present invention, the distance meter being mounted on a foot rest.

Fig. 9 is a schematic perspective view of a lifting drive device in the FPC bending mechanism for a battery cell according to the present invention.

Detailed Description

The preferred embodiments of the present invention will now be described with reference to the accompanying drawings, which are given by way of illustration.

Referring to fig. 1 to 3, the FPC bending mechanism 100 for a battery cell of the present invention is suitable for bending an FPC (211) of the battery cell clamped in a material mold 200, and includes a mechanism frame 10, a lifting driving device 20, an overturning driving device 30, a clamping jaw 40 for clamping the FPC (211) of the battery cell in the material mold 200, a sliding lock 50 slidably disposed on the material mold 200 and having a blocking position shown in fig. 4 and an avoiding position shown in fig. 5 relative to the material mold 200, and a lock driving device 60 for driving the sliding lock 50 to slide from the avoiding position to the blocking position. The mechanism frame 10 includes a foot rest 11 and a cross beam 12 connected to the foot rest 11, the cross beam 12 is suspended above the FPC (211) of the battery cell in the material mold 200, preferably, the foot rest 11 is respectively installed at two ends of the length of the cross beam 12, so that the foot rest 11 and the cross beam 12 together enclose a gantry support, and the material mold 200 is conveniently and accurately conveyed to a position right below the cross beam 12 from the outside, thereby creating a good condition for the operation of the FPC bending mechanism 100 of the present invention, preferably, the material mold 200 is supported by a tray 300, and the tray 300 is conveyed by an external tray conveying line, so as to achieve the purpose of automatically conveying the tray 300 and the material mold 200 together, but not limited thereto. The lifting drive device 20 is mounted on the cross beam 12, and the cross beam 12 provides a supporting function for the lifting drive device 20. The turning driving device 30 includes a turning driver 31 installed at the output end of the lifting driving device 20 and a turning base 32 installed at the output end of the turning driver 31, so that the turning driver 31 is installed at the output end of the lifting driving device 20, the lifting driving device 20 drives the turning driver 31 to perform a lifting motion, and the turning base 32 performs a coordinated lifting motion along with the turning driver 31 and performs a turning motion under the driving of the turning driver 31. The clamping jaw 40 is installed on the flipping base 32 to perform the flipping motion along with the flipping base 32, and preferably, the clamping jaw 40 is installed at one side of the flipping base 32 and is eccentric with respect to the output end of the flipping driver 31, so that the bending range of the clamping jaw 40 to the FPC (211) is larger, but not limited thereto. The locking piece driving device 60 is installed at the output end of the lifting driving device 20, so that the lifting driving device 20 drives the overturning driving device 30 to do lifting motion and simultaneously drives the locking piece driving device 60 to do lifting motion, thereby realizing the synchronization of the lifting of the locking piece driving device 60 and the lifting of the overturning driving device 30. Wherein, the clamping jaw 40 clamps the FPC (211) under the cooperation of the lifting driving device 20 and the overturning driving device 30, and the clamping jaw 40 bends the FPC (211) upward by a preset angle (for example, but not limited to, 90 degrees) around the material die 200; the sliding lock block 50 slides to the blocking position shown in fig. 4 under the cooperation of the lifting driving device 20 and the lock block driving device 60, and the bent FPC (211) is blocked by the sliding lock block 50 at the blocking position, which is shown in fig. 4. Specifically, in order to improve the reliability of upward bending of the FPC (211) around the material die 200, the FPC bending mechanism 100 of the electrical core of the present invention further includes an auxiliary flattening device 70 and a distance meter 80 mounted on the foot rest 11 and located outside one rebound side of the FPC (211), preferably, the auxiliary flattening device 70 is also located outside one rebound side of the FPC (211), and the auxiliary flattening device 70 is also located right above the distance meter 80, so that the arrangement between the auxiliary flattening device 70 and the distance meter 80 is more reasonable and compact, and the work between the auxiliary flattening device 70 and the distance meter 80 is ensured not to interfere with each other. It is understood that the distance meter 80 and/or the auxiliary flattening device 70 are deleted according to actual needs, and therefore the invention is not limited thereto. More specifically, the following:

as shown in fig. 1 and 7, the auxiliary flattening device 70 includes an auxiliary flattening driver 71 mounted on the foot rest 11 and an auxiliary flattening block 72 mounted at an output end of the auxiliary flattening driver 71, the auxiliary flattening block 72 is aligned with the bent FPC (211) along a length direction of the cross beam 11 (see a direction indicated by an arrow in the cross beam 11 in fig. 1), and the auxiliary flattening block 72 flattens the FPC (211) on a side (i.e., a right side in fig. 1) that rebounds from the FPC (211) during bending of the FPC (211); the distance meter 80 is aligned with the side of the FPC and a surface 222 where the notch of the embedding groove 220 described below is located (see fig. 5) along the length direction of the beam 12, and the surface 222 where the notch is located is in sliding contact with the sliding lock block 50, so that whether the bent FPC (211) is embedded into the embedding groove 220 is monitored, and the bent FPC (211) is prevented from being rigidly collided by the sliding lock block 50 sliding to the blocking position due to being protruded into the embedding groove 220, so that the FPC (211) of the blank battery cell is damaged, and therefore, the working safety and reliability are improved, but not limited thereto. For example, the auxiliary flattening driver 71 is mounted at the foot rest 11 through the auxiliary fixing seat 73, so as to improve the reliability of the assembly of the auxiliary flattening driver 71 at the foot rest 11, but not limited thereto.

As shown in fig. 5, the material mold 200 is provided with an embedded groove 220 for embedding the FPC (211) into the material mold 200 in the upward bending process, the embedded groove 220 is closed (shown in fig. 4) when the sliding lock block 50 slides to the blocking position, and the embedded groove 220 is opened when the sliding lock block 50 slides to the avoiding position, as shown in fig. 5; the arrangement enables the sliding lock block 50 to be bent upwards on the FPC (211) and smoothly slide to the blocking position, and improves the reliability of locking the bent FPC (211) by the sliding lock block 50, but not limited to the above.

As shown in fig. 1 to 3 and fig. 9, the lifting driving device 20 includes a lifting driver 21 mounted on the beam 12 and having an output end facing downward, and a lifting base 22 mounted on the output end of the lifting driver 21, and the turnover driver 31 and the locking block driving device 60 are respectively mounted on the lifting base 22 to simplify the structure of the lifting driving device 20; preferably, the locking piece driving device 60 is installed on the turning driver 31, and then the turning driver 31 is installed on the lifting seat 22, so as to achieve the purpose that the locking piece driving device 60 is indirectly installed on the lifting seat 22, and of course, the locking piece driving device 60 is directly installed on the lifting seat 22 according to actual needs, which increases the space occupied by the locking piece driving device 60 and the turning driving device 30 because they are directly installed on the lifting seat 22 at the same time. Specifically, as shown in fig. 6, the lock block driving device 60 includes a lock block driver 61 installed side by side with the flip driver 31 and a lock block pushing frame 62 installed at an output end of the lock block driver 61, the output ends of the flip driver 31 and the lock block driver 61 are parallel to each other, the lock block pushing frame 62 is aligned with the slide lock block 50 along a sliding direction of the slide lock block 50 (see a direction indicated by an arrow in the material mold 200 in fig. 1 or fig. 2), and the lock block pushing frame 62 is further located between the slide lock block 50 and the flip seat 32 along the sliding direction of the slide lock block 50, so that the lock block driver 61 installed side by side with the flip driver 31 makes the arrangement between the two more compact and occupies a smaller space, but not limited thereto.

As shown in fig. 1 to fig. 3 and fig. 6, the FPC bending mechanism 100 of the battery cell of the present invention further includes a displacement driver 90d mounted on the lifting seat 22 and a displacement seat 90c that is displaced along the sliding direction of the sliding lock block 50, and the flip driver 31 and the lock block driving device 60 are respectively mounted on the displacement seat 90c, so that the design can increase the sliding stroke of the flip driving device 30, the lock block driving device 60, and the clamping jaw 40 along the direction parallel to the sliding lock block 40, and the arrangement can reduce the occupied space of the cross beam 12, but not limited thereto.

As shown in fig. 1 to fig. 3, the FPC bending mechanism 100 for a battery cell of the present invention further includes a translation seat 90a slidably disposed on the beam 12 along the length direction of the beam 12 and a translation driving device 90b for driving the translation seat 90a to translate on the beam 12, the lifting driver 21 is mounted on the translation seat 90a, and the translation driving device 90b is mounted between the beam 12 and the translation seat 90a, so that the lifting driver 20, the flipping driver 30, the locking block driver 60, the clamping jaw 40, the displacement seat 90c, and the displacement driver 90d translate together with respect to the beam 12 by the cooperation of the translation driving device 90b and the translation seat 90a, so as to meet the requirement of movement. Specifically, the translation driving device 90b includes a translation screw 91 disposed along the length direction of the cross beam 12 and a translation nut (not shown) slidably sleeved on the translation screw 91, the translation nut is mounted on the translation seat 90a, the translation screw 91 is rotatably mounted on the cross beam 12, and a manual operating wheel 92 is mounted at an end of the translation screw 91, so that an operator can manually adjust the six of the elevation driving device 20, the inversion driving device 30, the lock block driving device 60, the clamping jaw 40, the displacement seat 90c and the displacement driver 90d together with respect to the translation of the cross beam 12, but is not limited thereto.

Compared with the prior art, by means of the cooperation of the mechanism frame body 10, the lifting driving device 20, the overturning driving device 30, the clamping jaw 40 for clamping the FPC (211) of the battery cell in the material die 200, the sliding locking block 50 which is arranged on the material die 200 in a sliding manner and has a blocking position and an avoiding position relative to the material die 200, and the locking block driving device 60 for driving the sliding locking block 50 to slide from the avoiding position to the blocking position, the lifting driving device 20 drives the overturning driving device 30, the locking block driving device 60 and the clamping jaw 40 to move close to the material die 200 together, and the clamping jaw 40 directly moves to the position of the FPC (211) of the battery cell for clamping the material die 200 and the position of the locking block driving device 60 which is aligned with the sliding locking block 50; then, the turnover driver 31 of the turnover driving device 30 drives the turnover seat 32 to turn upwards, so that the turnover seat 32 turned upwards drives the clamping jaw 40 to move upwards, and the clamping jaw 40 moving upwards bends the FPC (211) upwards around the material die 200 by a preset angle (for example, 90 degrees), at this time, the locking block driving device 60 drives the sliding locking block 50 to slide from the avoiding position to the blocking position, the sliding locking block 50 in the blocking position blocks the rebounding of the bent FPC (211), and the rebounding of the bent FPC (211) is prevented, so that on one hand, the bending reliability of the FPC (211) of the battery cell is ensured, and the subsequent production process is ensured; on the other hand, the automation degree saves time and labor.

It should be noted that the lifting actuator 21, the locking block actuator 61, the auxiliary pressing actuator 71 and the displacement actuator 90d are each an air cylinder or a hydraulic cylinder, and the turning actuator 31 can be a rotary motor, a rotary air cylinder or a rotary oil cylinder, but not limited thereto. In fig. 1, after the FPC (211) is held by the holding claw 50, the FPC (211) is bent by 90 degrees counterclockwise and the FPC (211) springs back clockwise and downward.

The above disclosure is only a preferred embodiment of the present invention, which is convenient for those skilled in the art to understand and implement, and certainly not to limit the scope of the present invention, therefore, the present invention is not limited by the claims and their equivalents.

Claims

1. The utility model provides a FPC of electric core mechanism of bending, is suitable for to the FPC of the electric core of dress clamp in the material mould bend, a serial communication port, include:

the mechanism frame body comprises a foot rest and a cross beam which is connected with the foot rest in an installing mode, and the cross beam is suspended above the FPC of the battery cell in the material die correspondingly;

the lifting driving device is arranged on the cross beam;

the overturning driving device comprises an overturning driver arranged at the output end of the lifting driving device and an overturning seat arranged at the output end of the overturning driver;

the clamping jaw is used for clamping the FPC of the battery cell in the material die and is installed on the overturning seat;

the sliding locking block is arranged on the material die in a sliding mode and provided with a blocking position and an avoiding position relative to the material die; and

the locking block driving device is used for driving the sliding locking block to slide from the avoiding position to the blocking position, and the locking block driving device is installed at the output end of the lifting driving device;

the clamping jaw clamps the FPC and enables the FPC to bend upwards around the material die by a preset angle under the cooperation of the lifting driving device and the overturning driving device, the sliding locking block slides to the blocking position under the cooperation of the lifting driving device and the locking block driving device, and the sliding locking block at the blocking position blocks the resilience of the bent FPC.

2. The FPC bending mechanism of the battery cell of claim 1, further comprising an auxiliary flattening device, wherein the auxiliary flattening device comprises an auxiliary flattening driver installed on the foot rest and an auxiliary flattening block installed at an output end of the auxiliary flattening driver, the auxiliary flattening block is aligned with the bent FPC along a length direction of the cross beam, and the auxiliary flattening block flattens the FPC from a side where the FPC rebounds in a bending process of the FPC.

3. The FPC bending mechanism of the battery cell of claim 2, wherein the material mold is provided with an embedded groove for embedding the FPC into the material mold during upward bending, the embedded groove is closed when the sliding lock block slides to the blocking position, and the embedded groove is opened when the sliding lock block slides to the avoiding position.

4. The FPC bending mechanism of the battery cell of claim 3, further comprising a distance meter installed on the foot rest and located outside one side of the FPC where the FPC rebounds, wherein the distance meter is respectively aligned with a side surface of the FPC and a surface where a notch of the embedding groove is located along a length direction of the cross beam, and the surface where the notch is located is in sliding contact with the sliding lock block.

5. The FPC bending mechanism of the battery cell of claim 4, wherein the auxiliary flattening device is located outside one side of FPC rebounding, and the auxiliary flattening device is further located right above the distance meter.

6. The FPC bending mechanism of the battery cell of claim 1, wherein the lifting driving device comprises a lifting driver mounted on the beam and having an output end facing downward, and a lifting seat mounted on an output end of the lifting driver, and the flip driver and the lock block driving device are mounted on the lifting seat respectively.

7. The FPC bending mechanism of the battery cell of claim 6, further comprising a displacement driver mounted on the lifting seat and a displacement seat that is displaced along a sliding direction of the sliding lock block, wherein the flip driver and the lock block driving device are respectively mounted on the displacement seat.

8. The FPC bending mechanism of the battery cell of claim 6 or 7, wherein the lock block driving device comprises a lock block driver installed side by side with the flip driver and a lock block pushing frame installed at an output end of the lock block driver, output ends of the flip driver and the lock block driver are parallel to each other, the lock block pushing frame is aligned with the sliding lock block along a sliding direction of the sliding lock block, and the lock block pushing frame is further located between the sliding lock block and the flip seat along the sliding direction of the sliding lock block.

9. The FPC bending mechanism of the battery cell of claim 6, further comprising a translation seat slidably disposed on the beam along a length direction of the beam, and a translation driving device for driving the translation seat to translate on the beam, wherein the lifting driver is mounted on the translation seat, and the translation driving device is mounted between the beam and the translation seat.

10. The FPC bending mechanism of the battery cell of claim 9, wherein the translation driving device includes a translation lead screw arranged along a length direction of the beam and a translation nut slidably sleeved on the translation lead screw, the translation nut is mounted on the translation seat, the translation lead screw is rotatably mounted on the beam, and a manual operating wheel is mounted at an end of the translation lead screw.