Auxiliary device for the combination of FPC with battery and combined process using the same

Abstract

The application relates to an auxiliary device for FPC and battery combination and a process using the same, the auxiliary device comprising a supporting plate for supporting a flexible circuit board, the supporting plate being provided with circuit board positioning columns and a through area, the circuit board positioning columns being capable of cooperating with circuit board positioning holes on the flexible circuit board, and the through area corresponding to positions provided with components on the flexible circuit board and being used for avoiding the components; the through area comprising an avoiding area, the edge of the avoiding area being provided with a support boss protruding towards the inside of the avoiding area, and the support boss being used for supporting a connecting area on the flexible circuit board for welding connection with a battery when the flexible circuit board is placed on the supporting plate. The application has the advantages of high production efficiency, mass production, and high process consistency.

Description

TECHNICAL FIELD

[0001] The present application relates to an auxiliary device for combining FPC (flexible printed circuit) and battery and a combination process using the same. BACKGROUND

[0002] When a wearable device is provided with a flexible printed circuit and a battery (such as a lithium battery), it is usually necessary to fix the flexible printed circuit and the battery together, and then coat them by means of silicone injection molding, so that the wearable device including the two has advantages such as bendable, waterproof, comfortable to wear, and convenient to charge. In the related art, the step of combining the flexible printed circuit and the battery includes: first, setting a tab on the battery, then manually fixing the flexible printed circuit, and using an electric soldering iron to weld the tab on the flexible printed circuit to realize the fixed connection of the flexible printed circuit and the battery. The disadvantage of this scheme is that the production efficiency is low, it is not suitable for mass production, the process consistency is poor, and the battery cannot be accurately positioned on the flexible printed circuit. SUMMARY

[0003] Therefore, the present application aims to provide an auxiliary device for combining FPC (flexible printed circuit) and battery and a combination process using the same.

[0004] The auxiliary device provided by the present application comprises a supporting plate for supporting the flexible printed circuit, the supporting plate is provided with a circuit board positioning column and a through area, the circuit board positioning column can cooperate with a circuit board positioning hole on the flexible printed circuit, and the through area corresponds to a position on the flexible printed circuit where components are arranged, and is used for avoiding the components.

[0005] The through area comprises an avoiding area, the edge of the avoiding area is provided with a support boss protruding towards the inside of the avoiding area, and the support boss is used for supporting a connecting area on the flexible printed circuit for welding with the battery when the flexible printed circuit is placed on the supporting plate.

[0006] Optionally, the through area further comprises a giving-way ventilation area, the giving-way ventilation area is located on both sides of the avoiding area and comprises a component avoiding part and a curing ventilation part, the component avoiding part is used for avoiding the components on the flexible printed circuit, and the curing ventilation part is located outside the flexible printed circuit after the flexible printed circuit is placed on the supporting plate.

[0007] Optionally, a first pressing plate located above the supporting plate is further included, the first pressing plate is provided with a battery positioning area and a first profiling area penetrating the first pressing plate, the first profiling area is aligned with the giving-way ventilation area, the battery positioning area is provided with a battery profiling part, the battery profiling part is aligned with a region on the flexible printed circuit which is expected to contact the battery, and the battery can be placed on the position of the flexible printed circuit which is expected to contact the battery through the battery profiling part.

[0008] Optionally, a second pressing plate is further included above the first pressing plate, the second pressing plate is provided with a plurality of welding head movement areas and a second profiling area penetrating through the second pressing plate, the second profiling area is aligned with the first profiling area, the plurality of welding head movement areas are arranged on the second pressing plate and have intervals between the welding head movement areas; after the battery is placed on the flexible circuit board, the welding head movement areas are used to expose the tab of the battery covering the connecting area to the auxiliary device, and the second pressing plate between the welding head movement areas is arranged above the battery.

[0009] Optionally, a buffer pad is arranged on the surface of the second pressing plate facing the first pressing plate, and the buffer pad is arranged between the welding head movement areas belonging to the same column.

[0010] The embodiment further provides a combined process using the auxiliary device, comprising the following steps:

[0011] S1. aligning the circuit board positioning hole on the flexible circuit board with the circuit board positioning column on the supporting plate, and placing the flexible circuit board on the supporting plate;

[0012] S2. arranging an adhesive on at least one of the position expected to contact the battery and the position expected to contact the battery on the flexible circuit board;

[0013] S3. placing the battery provided with the tab on the flexible circuit board, so that the tab of the battery is above the connecting area of the flexible circuit board;

[0014] S4. welding the tab and the connecting area by the welding head of the pressure welding machine.

[0015] The embodiment further provides a combined process using the auxiliary device, comprising the following steps:

[0016] S1. placing the flexible circuit board on the supporting plate;

[0017] S2. placing the first pressing plate on the supporting plate, aligning the first profiling area with the air vent area, and aligning the battery profiling part of the battery positioning area with the area expected to contact the battery on the flexible circuit board;

[0018] S3. arranging an adhesive on at least one of the position expected to contact the battery and the position expected to contact the battery on the flexible circuit board;

[0019] S4. placing the battery on the flexible circuit board through the battery profiling part;

[0020] S5. extending the welding head of the pressure welding machine into the auxiliary device and welding the tab and the connecting area by the welding head.

[0021] Optionally, the adhesive is glue, and the method further comprises, between steps S4 and S5: placing the second pressing plate on the first pressing plate.

[0022] The method further comprises, after step S5: baking the auxiliary device loaded with the combination of the flexible circuit board and the battery to solidify the glue.

[0023] Optionally, the portion of the tab on the connecting area has a rectangular cross section, and the portion of the welding head in contact with the tab has a rectangular cross section.

[0024] Optionally, the portion of the tab on the connecting area is provided with a solder accommodating hole for accommodating solder.

[0025] In summary, by providing the auxiliary device comprising the supporting plate and the through area (i.e. the avoiding area, the avoiding hole, the accommodating vent area, etc.) for avoiding the components on the flexible circuit board, the flexible circuit board can be accurately loaded on the supporting plate, and the present application has the advantages of high production efficiency, mass production, and high process consistency. Furthermore, the present application has the following beneficial effects:

[0026] 1. When the welding head is used in the process of combining the flexible circuit board and the battery in the present application, the process can significantly reduce the risk of forming a raised solder bump at the connecting part of the flexible circuit board and the battery, thereby ensuring the appearance of the workpiece after injection molding, and also helping to avoid the phenomenon of tab stress release (i.e. the tab may be raised upward during the operation of the electric soldering iron) at the connecting part of the flexible circuit board and the battery after welding, and further eliminating the molding precision deviation caused by the stress release from the source;

[0027] 2. When the auxiliary device further comprises the first pressing plate and the second pressing plate provided on the supporting plate, and the flexible circuit board and the battery are connected by glue, the present application can obtain a combination of the flexible circuit board and the battery with high connection strength, and the combination has a low probability of not tolerating pressure during the silicone injection molding process, and has a high injection success rate;

[0028] 3. By providing the circuit board positioning column on the supporting plate, the battery positioning area, the first positioning hole, and the second positioning hole on the first pressing plate, and the third positioning hole on the second pressing plate, the battery installed on the flexible circuit board in the present application has high positional accuracy.

[0029] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 Figure 1 is a schematic view of the combination of the flexible circuit board and the battery in the first embodiment of the present application.

[0031] Figure 2 Figure 2 is a schematic view of the support plate and the flexible circuit board in the first embodiment of the present application.

[0032] Figure 3 Figure 3 is a schematic view of the support plate, the flexible circuit board, the battery and the welding head in the first embodiment of the present application.

[0033] Figure 4 Figure 4 is an exploded view of the auxiliary device loaded with the flexible circuit board and the battery in the second embodiment of the present application.

[0034] Figure 5 Figure 5 is a schematic view of the support plate in the second embodiment of the present application.

[0035] Figure 6 Figure 6 is a schematic view showing the relative position between the first pressing plate and the support plate in the second embodiment of the present application.

[0036] Figure 7 Figure 7 is a schematic view of the second pressing plate, the first pressing plate and the support plate in the assembled state in the second embodiment of the present application. Figure 1

[0037] Figure 8 Figure 8 is a schematic view of the second pressing plate, the first pressing plate and the support plate in the assembled state in the second embodiment of the present application.

[0038] Figure 9 Figure 9 is a schematic view of the second pressing plate, the first pressing plate and the support plate in the assembled state in the second embodiment of the present application. Figure 2

[0039] Figure 10 is a schematic view showing the relative position between the cushion pad and the battery in the second embodiment of the present application. Figure 10 Legend of reference signs

[0040] 1 - flexible circuit board, 11 - solder pad, 2 - battery, 21 - tab, 22 - solder accommodating hole, 3 - support plate, 31 - avoiding area, 32 - circuit board positioning column, 33 - avoiding hole, 34 - supporting boss, 35 - position-allowing venting area, 351 - element avoiding part, 352 - solidifying venting part, 36 - pressing plate positioning column, 4 - welding head, 5 - first pressing plate, 51 - first positioning hole, 52 - second positioning hole, 53 - first profiling area, 54 - battery positioning area, 541 - battery profiling part, 6 - second pressing plate, 61 - third positioning hole, 62 - second profiling area, 63 - welding head moving area, 7 - cushion pad, 8 - glue;

[0041] I - connecting area, II - matching unit.

[0042] ​​Detailed Implementation

[0043] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0044] The terms "first," "second," etc., used in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0045] Example 1

[0046] like Figure 1 As shown, this embodiment aims to obtain an assembly of a flexible circuit board 1 and a battery 2. The flexible circuit board 1 is generally waist-shaped, with a connection area I formed by solder pads 11 near each of its two opposite edges in the width direction. The battery 2 is a flat cylindrical lithium battery, and two tabs 21 are soldered onto the battery 2. The two tabs 21 extend outward from the battery 2 in opposite directions, and are both strip-shaped with a rectangular cross-section. After the flexible circuit board 1 and the battery 2 are assembled, the battery 2 is attached to the middle of one side surface of the flexible circuit board 1, and the ends of the tabs 21 away from the battery 2 cover the connection area I and are fixedly connected to the solder pads 11 by soldering. Preferably, a solder receiving hole 22 is also provided on the end of the tab 21 away from the battery 2 to receive solder paste during the soldering process, so as to reduce the probability of solder foci forming at the solder joint after the battery 2 and the flexible circuit board 1 are soldered together, thereby ensuring the soldering quality.

[0047] Please refer to further information. Figure 2 and Figure 3 This embodiment provides an auxiliary device for processing the assembly, including a cuboid tray 3. The tray 3 is provided with a plurality of mating units II arranged in a matrix. The mating units II correspond one-to-one with the flexible circuit board 1, so that the flexible circuit board 1 can be stably placed on the tray 3 so that it can be welded to the battery 2.

[0048] Specifically, each mating unit II is provided with a through area and two circuit board positioning posts 32. The through area corresponds to the position of the components on the flexible circuit board 1 to avoid the components. The through area includes a clearance area 31 and two clearance holes 33 arranged at intervals. The two circuit board positioning posts 32 are located on the left and right sides of the clearance area 31, respectively. The two clearance holes 33 are located on the left and right sides of the clearance area 31, respectively. The two clearance holes 33 are arranged along the length direction of the support plate 3. The two circuit board positioning posts 32 are arranged along the length direction of the support plate 3. The circuit board positioning posts 32 extend vertically outward from the upper surface of the support plate 3 and can cooperate with the corresponding circuit board positioning holes opened on the flexible circuit board 1 so that the flexible circuit board 1 can be accurately placed on the support plate 3.

[0049] As described above, the avoiding area 31 is an irregular hollow shape (similar to a shield in this embodiment) penetrating the supporting plate 3, which is configured to be able to enclose the components in the middle of the flexible circuit board 1; similarly, the avoiding hole 33 is a through hole penetrating the supporting plate 3, which can correspond to the area on the end of the flexible circuit board 1 provided with components (not shown in the figure) after the flexible circuit board 1 is placed on the supporting plate 3. In addition, a supporting boss 34 protruding from the edge of the avoiding area 31 to the center of the avoiding area 31 is respectively arranged on the front and rear edges of the avoiding area 31, which can be located below the connecting area I after the flexible circuit board 1 is placed on the supporting plate 3 to support the connecting area I, thereby ensuring the welding quality.

[0050] Based on this, the embodiment also provides a process for combining the flexible circuit board 1 and the battery 2 using the aforementioned auxiliary device, which uses a pressure welding machine (not shown in the figure), the welding head 4 (made of molybdenum alloy) of which is fixed on a three-axis platform, and is provided with a temperature sensing device (not shown in the figure) and a pressure sensor (not shown in the figure) to realize accurate control of temperature and pressure; at the same time, the lower surface of the welding head 4 is a rectangle matched with the tab 21 to closely adhere to the tab 21, thereby ensuring the welding efficiency and quality.

[0051] Specifically, the process for combining the flexible circuit board 1 and the battery 2 using the aforementioned auxiliary device includes the following steps:

[0052] S1: power on the pressure welding machine to heat and warm up the welding head 4 thereof;

[0053] S2: set an adhesive (double-sided tape in this embodiment, not shown in the figure) on the part of the flexible circuit board 1 expected to contact the battery 2; the purpose of thus setting is to ensure that the lower surface of the battery 2 closely adheres to the flexible circuit board 1, and to enable the flexible circuit board 1 and the battery 2 to be pre-fixed by means of the adhesive, so as to further ensure that the flexible circuit board 1 and the tab 21 do not move relative to each other during welding; alternatively, this step can also be replaced by pasting double-sided tape on the part of the battery 2 expected to contact the flexible circuit board 1;

[0054] S3: make the flexible circuit board 1 cooperate with the circuit board positioning column 32, and closely adhere to the surface of the supporting plate 3, so as to be stably placed on the supporting plate 3;

[0055] S4: fix the supporting plate 3 carrying the flexible circuit board 1 below the welding head 4; wherein the manner of fixing the supporting plate 3 below the welding head 4 can be flexibly set by those skilled in the art;

[0056] S5: place the battery 2 on the flexible circuit board 1, make the battery 2 adhere to the flexible circuit board 1, and apply an appropriate amount of solder paste at the solder accommodating hole 22;

[0057] S6: The welding head 4 is pressed to move along the moving path pre-embedded in the welding machine, and contacts and completes the pressure welding with the tabs 21 on both sides of the battery 2.

[0058] In summary, the embodiment can ensure that the welding operation of the flexible circuit board 1 and the battery 2 has good process consistency, and ensure that the production efficiency of the process of combining the flexible circuit board 1 and the battery 2 is high, and has the possibility of mass production.

[0059] Example Two

[0060] As shown in Figure 4 , the embodiment provides an auxiliary device different from the first embodiment; in the embodiment, the flexible circuit board 1 and the battery 2 will be tightly attached and pre-fixed by the adhesive, which is specifically glue 8, which needs to be baked in an oven to complete the final curing; specifically, the auxiliary device includes a supporting plate 3, a first pressing plate 5 and a second pressing plate 6, which are all cuboids, wherein the supporting plate 3 is used to place the flexible circuit board 1, the first pressing plate 5 is used to press on the supporting plate 3 and assist the worker to accurately connect the flexible circuit board 1 and the battery 2 by adhesion, and the second pressing plate 6 is used to press on the first pressing plate 5 and further ensure that the flexible circuit board 1 and the battery 2 do not move relative to each other.

[0061] Please further refer to Figure 5, the through area includes the interval arranged avoiding area 31 and the flower-shaped air passage area 35, the avoiding area 31 is arranged same as the first embodiment, the air passage area 35 is located at the left and right sides of the avoiding area 31 and is formed by four semicircles which are adjacent to the center line and are at the angle of 90 degrees, the air passage area 35 includes two component avoiding parts 351 and two solidification air passage parts 352, the component avoiding parts 351 are arranged at the left and right ends of the air passage area 35 along the length direction of the supporting plate 3, the solidification air passage parts 352 are arranged at the front and back ends of the air passage area 35 along the width direction of the supporting plate 3, when the two flexible circuit boards 1 are arranged on the supporting plate 3 along the length direction of the supporting plate 3, at least part of the components on one of the two flexible circuit boards 1 will be located in one of the two component avoiding parts 351, at least part of the components on the other of the two flexible circuit boards 1 will be located in the other of the two component avoiding parts 351, at the same time, the solidification air passage parts 352 will be exposed outside the flexible circuit board 1, so as to facilitate the air flow in the oven when the combination of the flexible circuit board 1 and the battery 2 is sent into the oven for solidification. In addition, in order to complete the positioning and limiting of the flexible circuit board 1 on the supporting plate 3, a pair of circuit board positioning columns 32 are arranged between the avoiding area 31 and the air passage area 35, the two circuit board positioning columns 32 which are located at different sides of the same avoiding area 31 are arranged at the diagonal, so as to cooperate with the corresponding circuit board positioning holes on the flexible circuit board 1, so that the flexible circuit board 1 is accurately and stably placed on the supporting plate 3. Further, the pressing plate positioning columns 36 are arranged at the front and back parts of the supporting plate 3 and are formed by protruding outward from the upper surface of the supporting plate 3, so as to facilitate the positioning action when the first pressing plate 5 and the second pressing plate 6 are arranged on the supporting plate 3 in sequence.

[0062] Please further refer to Figure 6, the first pressing plate 5 is provided with a first positioning hole 51, a second positioning hole 52, a first profiling area 53 and a battery positioning area 54, wherein the first positioning hole 51 can cooperate with the pressing plate positioning column 36, the second positioning hole 52 can cooperate with the circuit board positioning column 32, the first profiling area 53 penetrates the first pressing plate 5, the first profiling area 53 is the same shape as the let-out ventilation area 35 and one-to-one correspondence, the battery positioning area 54 is a long strip area penetrating the first pressing plate 5, and it is located between the first profiling areas 53 of adjacent columns and extends along the width direction of the first pressing plate 5; the battery positioning area 54 is provided with a battery profiling part 541 in front of and behind it, which can just accommodate the battery 2, at the same time, the length of the battery positioning area 54 is set to allow the front and rear edges of the two flexible circuit boards 1 in the same column to be exposed; in this way, when the flexible circuit board 1 is placed on the supporting plate 3, and the first pressing plate 5 is set on the supporting plate 3 under the guidance of the circuit board positioning column 32 and the pressing plate positioning column 36, the pressing plate positioning column 36 has a part protruding out of the first pressing plate 5, the upper surface of the circuit board positioning column 32 is flush with the upper surface of the first pressing plate 5, the first profiling area 53 will be aligned with the let-out ventilation area 35, and the front and rear edges of the two flexible circuit boards 1 arranged along the width direction of the supporting plate 3 will be exposed at the front and rear ends of the battery positioning area 54 respectively; after the middle part of the flexible circuit board 1 is coated with glue 8, the two batteries 2 can be placed in the battery profiling parts 541 on the front and rear parts of the battery positioning area 54 and in contact with the glue 8, so as to accurately connect with the flexible circuit board 1; at this time, the connection area I intended to be welded with the tab 21 of the battery 2 is in an exposed state.

[0063] For further reference Figure 7 , the second pressing plate 6 in the embodiment is provided with a third positioning hole 61, a second profiling area 62 and a welding head movement area 63, wherein the third positioning hole 61 can cooperate with the pressing plate positioning column 36, the second profiling area 62 penetrates the second pressing plate 6 and is the same shape as the first profiling area 53 and one-to-one correspondence, the welding head movement area 63 penetrates the second pressing plate 6 and is a rectangle, and it is located between the adjacent second profiling areas 62, and is arranged along the width direction of the second pressing plate 6; in the embodiment, three welding head movement areas 63 are arranged in the middle of every two columns of second profiling areas 62, the three welding head movement areas 63 correspond to the front, middle and rear parts of the battery positioning area 54 respectively, and the adjacent welding head movement areas 63 are solid second pressing plates 6; when the second pressing plate 6 is set on the first pressing plate 5 under the guidance of the pressing plate positioning column 36, as Figure 8As shown, the upper surface of the pressure plate positioning post 36 is flush with the upper surface of the second pressure plate 6, and the second contouring area 62 is aligned with the first contouring area 53. The welding head movement area 63 will expose the tabs 21 of the batteries 2 placed in the same row on the tray 3 outside the second pressure plate 6, so as to provide space for the welding head 4 to weld. At this time, the second pressure plate 6 located between the welding head movement areas 63 will press on the battery 2 to further ensure that there is no relative movement between the flexible circuit board 1 and the battery 2. Preferably, a cushioning pad 7 made of soft fabric (such as...) is adhered to the lower surface of the second pressure plate 6 (specifically between adjacent welding head movement areas 63 in the same row). Figure 9 and Figure 10 The buffer pad 7 can be sandwiched between the battery 2 and the second pressure plate 6 when the second pressure plate 6 is pressed onto the first pressure plate 5, thereby reducing the risk of damage to the battery 2. Preferably, a commercially available latch (not shown) can be provided on at least two of the support plate 3, the first pressure plate 5, and the second pressure plate 6 to increase the connection stability of the entire auxiliary device; in some possible embodiments, the latch can have the latch structure described in CN202021586396.X or CN202022134304.0.

[0064] Based on this, this embodiment also provides a process for combining the flexible circuit board 1 and the battery 2 using the aforementioned auxiliary device. This process utilizes the aforementioned auxiliary device and the pressure welding machine as described in Embodiment 1, and includes the following steps:

[0065] S1: Power on the pressure welding machine to heat up its welding head 4;

[0066] S2: The flexible circuit board 1 is made to mate with the circuit board positioning post 32 and to adhere to the surface of the tray 3, so that it is securely placed on the tray 3.

[0067] S3: Apply adhesive 8 to the area of ​​the flexible circuit board 1 where it is expected to contact the battery 2 (see...). Figure 5 The purpose of this arrangement is to ensure that the lower surface of the battery 2 is in close contact with the flexible circuit board 1, and to pre-fix the flexible circuit board 1 and the battery 2 with adhesive, so as to ensure that the flexible circuit board 1 and the battery 2 do not move relative to each other during welding; alternatively, this step can also be replaced by applying adhesive 8 to the part of the battery 2 that is expected to contact the flexible circuit board 1; preferably, the adhesive 8 is a two-component epoxy adhesive that can be cured at low temperature or room temperature.

[0068] S4: Place the first pressure plate 5 on the pallet 3;

[0069] S5: The battery 2 is accurately placed into the first pressure plate 5 by means of the battery positioning area 54 on the first pressure plate 5, so that the battery 2 is bonded to the flexible circuit board 1.

[0070] S6: Place the second pressure plate 6 on the first pressure plate 5;

[0071] S7: Fix the auxiliary device under the welding head 4;

[0072] S8: Point the appropriate amount of solder paste at the solder accommodation hole 22, and make the welding head 4 contact the tab 21 on both sides of the battery 2 respectively according to the pre-designed movement path and complete the pressure welding;

[0073] S9: Send the auxiliary device into the oven to further solidify the glue 8.

[0074] In summary, by setting the auxiliary device including the supporting plate 3, and setting the through area (i.e. the avoiding area 31, the avoiding hole 33, the accommodating vent area 35, etc.) for avoiding the components on the flexible circuit board 1 on the supporting plate 3, so that the flexible circuit board 1 can be accurately loaded onto the supporting plate 3, the present application has the advantages of high production efficiency, mass production, and high process consistency. Further, the present application has the following beneficial effects:

[0075] 1. When the welding head 4 is used in the process of combining the flexible circuit board 1 and the battery 2 in the present application, the process can significantly reduce the risk of forming a raised solder package at the connection between the flexible circuit board 1 and the battery 2, thereby ensuring the appearance of the workpiece after injection molding, and also helping to avoid the phenomenon of tab 21 stress release (i.e. the tab 21 may be raised upward during the soldering process) at the connection between the flexible circuit board 1 and the battery 2 after soldering, thereby eliminating the molding precision deviation caused by the stress release from the source;

[0076] 2. When the auxiliary device further includes the first pressing plate 5 and the second pressing plate 6 arranged on the supporting plate 3, and the flexible circuit board 1 and the battery 2 are connected by the glue 8, the present application can obtain a combination with high connection strength between the flexible circuit board 1 and the battery 2, which has a low probability of not tolerating pressure during the silicone injection molding process, and has a high injection success rate;

[0077] 3. By setting the circuit board positioning column 32 on the supporting plate 3, the battery 2 placement area, the first positioning hole 51 and the second positioning hole 52 on the first pressing plate 5, and the third positioning hole 61 on the second pressing plate 6, the battery 2 installed on the flexible circuit board 1 in the present application has high positional accuracy.

[0078] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An auxiliary device for FPC in combination with a battery, characterized by, The supporting plate (3) is provided with a circuit board positioning column (32) capable of cooperating with a circuit board positioning hole on the flexible circuit board (1) and a through area corresponding to a position provided with components on the flexible circuit board (1) for avoiding the components; The through area comprises an avoiding area (31) and a position-allowing ventilation area (35), the position-allowing ventilation area (35) is located on both sides of the avoiding area (31), the edge of the avoiding area (31) is provided with a support boss (34) protruding towards the inside of the avoiding area (31), the support boss (34) is used for supporting a connecting area on the flexible circuit board (1) for welding with a battery (2) when the flexible circuit board (1) is placed on the supporting plate (3); Further comprising a first pressing plate (5) above the supporting plate (3), the first pressing plate (5) is provided with a battery positioning area (54) and a first profiling area (53) penetrating the first pressing plate (5), the first profiling area (53) is aligned with the position-allowing ventilation area (35), the battery positioning area (54) is a long strip-shaped area penetrating the first pressing plate (5), the battery positioning area (54) is provided with a battery profiling part (541), the battery profiling part (541) is aligned with a region on the flexible circuit board (1) expected to contact the battery (2), the battery (2) can be placed on the position of the flexible circuit board (1) expected to contact the battery (2) through the battery profiling part (541); Further comprising a second pressing plate (6) above the first pressing plate (5), the second pressing plate (6) is provided with a welding head movement area (63) and a second profiling area (62) penetrating the second pressing plate (6), the second profiling area (62) is aligned with the first profiling area (53), a plurality of columns of the welding head movement area (63) are arranged on the second pressing plate (6), and the welding head movement area (63) has a spacing between the welding head movement area (63); after the battery (2) is placed on the flexible circuit board (1), the welding head movement area (63) is used for exposing the tab (21) of the battery (2) covering the connecting area to the auxiliary device, and the second pressing plate (6) located between the welding head movement area (63) is arranged above the battery (2) between the welding head movement area (63) belonging to the same column.

2. The supplemental device of claim 1, wherein, The position-allowing ventilation area (35) comprises an element avoiding part (351) and a curing ventilation part (352), the element avoiding part (351) is used for avoiding components on the flexible circuit board (1), and the curing ventilation part (352) is located outside the flexible circuit board (1) after the flexible circuit board (1) is placed on the supporting plate (3).

3. The supplemental device of claim 1, wherein, The surface of the second pressing plate (6) facing the first pressing plate (5) is provided with a buffer pad (7) between the welding head movement area (63) belonging to the same column.

4. A combined process using the aid as claimed in claim 1 or 2, characterized in that, The method comprises the following steps: S1. Aligning the circuit board positioning holes on the flexible circuit board (1) with the circuit board positioning columns (32) on the supporting plate (3), and placing the flexible circuit board (1) on the supporting plate (3); S2. Providing an adhesive on at least one of the position where the battery (2) is expected to contact the flexible circuit board (1) or the position where the flexible circuit board (1) is expected to contact the battery (2); S3. Placing the battery (2) with the tab (21) on the flexible circuit board (1) so that the tab (21) of the battery (2) is above the connecting area of the flexible circuit board (1); S4. Welding the tab (21) and the connecting area by the welding head (4) of the pressure welding machine.

5. A combined process using the auxiliary device according to claim 1 or 3, characterized in that, The method comprises the following steps: S1. Placing the flexible circuit board (1) on the supporting plate (3); S2. Placing the first pressing plate (5) on the supporting plate (3) so that the first profiling area (53) is aligned with the accommodation venting area (35), and the battery profiling part (541) of the battery positioning area (54) is aligned with the area of the flexible circuit board (1) expected to contact the battery (2); S3. Providing an adhesive on at least one of the position where the battery (2) is expected to contact the flexible circuit board (1) or the position where the flexible circuit board (1) is expected to contact the battery (2); S4. Placing the battery (2) on the flexible circuit board (1) through the battery profiling part (541); S5. Making the welding head (4) of the pressure welding machine extend into the auxiliary device and weld the tab (21) and the connecting area by the auxiliary device.

6. The combined process of claim 5 wherein, The adhesive is glue (8), and the method further comprises, between steps S4 and S5: placing the second pressing plate (6) on the first pressing plate (5); The method further comprises, after step S5: baking the auxiliary device loaded with the combination of the flexible circuit board (1) and the battery (2) to solidify the glue (8).

7. The combined process of claim 5 wherein, The part of the tab (21) above the connecting area has a rectangular cross section, and the part of the welding head (4) in contact with the tab (21) has a rectangular cross section.

8. The combined process of claim 7 wherein, The part of the tab (21) above the connecting area is provided with a solder accommodating hole (22) for accommodating solder. The part of the tab (21) above the connecting area has a rectangular cross section, and the part of the welding head (4) in contact with the tab (21) has a rectangular cross section. The part of the tab (21) above the connecting area is provided with a solder accommodating hole (22) for accommodating solder.

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