CN219372657U

CN219372657U - FPC assembly

Info

Publication number: CN219372657U
Application number: CN202223169020.0U
Authority: CN
Inventors: 王文宝; 洪诗阅; 洪礼辉; 钟建莹
Original assignee: Xiamen Bolion Tech Co ltd
Current assignee: Xiamen Bolion Tech Co ltd
Priority date: 2022-09-28
Filing date: 2022-11-29
Publication date: 2023-07-18
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to the technical field of FPC (flexible printed circuit) assemblies, in particular to an FPC assembly. The utility model discloses an FPC assembly, which comprises a plastic sucking tray, a busbar and an FPC board; the busbar and the FPC board are fixedly arranged on the plastic sucking tray, and the FPC board is electrically connected with the busbar; the plastic sucking tray is of a strip-shaped structure; the plastic sucking tray is provided with a plurality of mounting grooves on two sides parallel to the long side direction respectively, the plurality of mounting grooves are sequentially arranged along the long side direction, the busbar is mounted in the mounting grooves, the mounting grooves are provided with riveting columns, the busbar is correspondingly provided with positioning holes, and the positioning holes are sleeved on the riveting columns so that the busbar is limited in the mounting grooves; one end of the FPC board along the length direction is connected with a connecting plug-in. The utility model adopts the plastic sucking tray as the component tray, thereby greatly reducing the production cost and shortening the production period; and reduce the thickness of product, realize the quick installation and the fixed of busbar through setting up the riveting post simultaneously, the steadiness is good.

Description

FPC assembly

Technical Field

The utility model belongs to the technical field of FPC (flexible printed circuit) assemblies, and particularly relates to an FPC assembly.

Background

The battery module is the module that is formed by a plurality of electric core combinations, and the electric current of a plurality of electric cores of battery module is assembled through the busbar and is exported through the PFC board again, in current battery module, often adopts the division board to keep apart electric core and FPC board, and busbar and FPC board set up and form the FPC subassembly on the same side of division board, are favorable to battery module's integration, and the assembly is more convenient.

In the prior art, the partition plate conventionally selects injection molding parts as component trays, the injection molding die is high in cost and long in development period, and meanwhile, the injection molding process and the material cost are high, and the finished product is thick and heavy.

Disclosure of Invention

The present utility model is directed to an FPC assembly for solving the above-mentioned problems.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an FPC assembly comprises a plastic sucking tray, a busbar and an FPC board; the busbar and the FPC board are fixedly arranged on the plastic sucking tray, and the FPC board is electrically connected with the busbar; the plastic sucking tray is of a strip-shaped structure; the plastic sucking tray is provided with a plurality of mounting grooves on two sides parallel to the long side direction respectively, the plurality of mounting grooves are sequentially arranged along the long side direction, the busbar is mounted in the mounting grooves, the mounting grooves are provided with riveting columns, the busbar is correspondingly provided with positioning holes, and the positioning holes are sleeved on the riveting columns so that the busbar is limited in the mounting grooves; one end of the FPC board along the length direction is connected with a connecting plug-in.

Further, a buckle is arranged on the inner side wall of the mounting groove and used for clamping and fixing the busbar in the mounting groove.

Further, the device also comprises two output poles; two plastic brackets are arranged on the plastic sucking tray, and two output poles are respectively fixed on the two plastic brackets; the two output electrodes are respectively and electrically connected with the FPC board; the plastic bracket is provided with a buckle, and the output electrode is clamped and fixed by the plastic bracket through the buckle.

Further, the two plastic brackets are a first plastic bracket and a second plastic bracket respectively; the first plastic bracket is arranged at one end part of the plastic sucking tray, and the second plastic bracket is arranged at the other end part of the plastic sucking tray; the connecting plug-in is fixed on the second plastic bracket.

Furthermore, the second plastic support is provided with a positioning column, the connecting plug-in is provided with a corresponding through hole, and the through hole is sleeved on the positioning column so that the connecting plug-in is limited on the second plastic support.

Further, the bottom of the riveting column is provided with a downward concave cambered surface along the circumferential direction.

Further, the thickness of the plastic sucking tray is 0.5-1.0mm, and the plastic sucking tray is made of PC materials.

Further, the width of the buckle is 6-10mm.

Further, the number of the positioning holes of each busbar is one; the busbar is also provided with a plurality of electric core holes which are sequentially arranged at intervals along the long side direction of the plastic sucking tray, and one electric core hole is arranged opposite to the positioning hole; the size of the cell hole is smaller than that of the positioning hole.

The beneficial technical effects of the utility model are as follows:

the utility model adopts the plastic sucking tray as the component tray, thereby greatly reducing the production cost and shortening the production period; and reduce the thickness of product, realize the quick installation and the fixed of busbar through setting up the riveting post simultaneously, the steadiness is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is an assembled view of the present utility model;

FIG. 3 is a schematic cross-sectional view of a rivet according to the present utility model;

FIG. 4 is a perspective view of a second plastic stent of the present utility model;

fig. 5 is a perspective view of a bus bar of the present utility model.

Description of the reference numerals:

the plastic uptake tray 1, the busbar 2, the FPC board 3, the first plastic support 4, the second plastic support 5, the output electrode 6, the mounting groove 11, the battery cell post window 12, the rivet post 13, the isolation rib 14, the buckle 15, the abdication channel 16, the battery cell hole 21, the positioning hole 22, the extension 31, the connecting plug-in 32, the through hole 33 and the positioning post 51.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

The utility model will now be further described with reference to the drawings and detailed description.

As shown in fig. 1 to 5, an FPC assembly includes a plastic tray 1, a bus bar 2, and an FPC board 3. The busbar 2 and the FPC board 3 are fixedly arranged on the plastic sucking tray 1, and the FPC board 3 is electrically connected with the busbar 2; one end of the FPC board 3 in the length direction is connected with a connection plug 32.

In this embodiment, as shown in fig. 1, the plastic uptake tray 1 has a strip structure, and two sides of the plastic uptake tray 1 parallel to the long side direction are respectively provided with a plurality of mounting grooves 11; the busbar 2 is mounted in the mounting groove 11. The FPC board 3 sets up in the intermediate position of plastic uptake tray 1 and place along the long limit direction, has a plurality of extension 31 on the FPC board 3, is equipped with on the lateral wall of every mounting groove 11 towards FPC board 3 one side and gives way passageway 16 for extension 31 passes through passageway 16 and busbar 2 direct contact of giving way, and through laser welding, realizes the electricity and connects.

In the specific embodiment, the thickness of the plastic sucking tray 1 is preferably 0.5-1.0mm, and the plastic sucking tray 1 is made of PC material; the thickness is thin and light, realizes the lightweight of product, can satisfy the support strength of product simultaneously.

In this embodiment, the bottom of the plastic uptake tray 1 is placed on a battery cell (not shown in the figure), a battery cell pole is arranged on the surface of the battery cell, which contacts with the plastic uptake tray 1, a plurality of battery cell pole windows 12 are arranged on a mounting groove 11 corresponding to the battery cell pole, and the battery cell pole windows 12 are through holes and are used for directly contacting the bus bar 2 with the battery cell pole; specifically, as shown in fig. 1, each mounting groove 11 has 4 cell pole windows 12, which are of course not limited to 4 in this embodiment, and those skilled in the art can design according to specific situations.

In this embodiment, each busbar 2 is provided with a plurality of cell holes 21 and positioning holes 22; the number of the positioning holes 22 of each busbar 2 is one, and a plurality of electric core holes 21 are sequentially arranged at intervals along the long side direction of the plastic sucking tray 1; the cell holes 21 correspond to the cell pole windows 12 and the number of the cell holes 21 is the same as the number of the cell pole windows 12; the position where welding is needed can be conveniently confirmed through the cell hole 21, and the busbar 2 and the cell pole are conveniently welded to realize electric connection. Specifically, as shown in fig. 1, each busbar 2 has 4 cell holes 21,4 cell holes 21, and a positioning hole 22 is disposed on one side of the busbar 2 and corresponds to one of the cell holes 21. The mounting groove 11 is provided with the rivet column 13 which is matched with the positioning hole 22, and the positioning hole 22 is sleeved on the rivet column 13, so that the busbar 2 is easily mounted in the mounting groove 11, and the busbar 2 can be limited in the mounting groove 11 and is not easy to move.

In this embodiment, as shown in fig. 4, the cell hole 21 has a circular through hole 33 structure, and the positioning hole 22 has a circular through hole 33 structure; both are not easily identified. In order to better distinguish the cell hole 21 and the positioning hole 22, the positioning hole 22 is foolproof; the positioning hole 22 is matched with the rivet 13 and the dimension of the rivet 13 is larger than the cell hole 21, so that the dimension of the positioning hole 22 is larger than the dimension of the cell hole 21. When the electric core hole 21 is installed, if the electric core hole 21 is aligned with the rivet column 13 by mistake, the electric core hole 21 cannot be sleeved on the rivet column 13; then, only the positioning hole 22 arranged on the other side of the busbar 2 is required to be aligned with the rivet 13, so that the busbar 2 can be accurately placed in the mounting groove 11.

In this embodiment, as shown in fig. 3, a concave cambered surface is provided at the bottom of the rivet 13 along the circumferential direction. The radius of the circular arc is preferably 0.5-1mm, the strength of the positioning column 51 can be increased due to the arrangement of the concave cambered surface, deformation during demolding is avoided, and the novel positioning column is high in practicality and convenient to use.

In this embodiment, the adjacent position of two mounting grooves 11 is equipped with the isolation muscle 14, and the isolation muscle 14 not only can increase the intensity of plastic uptake tray 1, is used for restricting and keeping apart busbar 2 simultaneously to strengthen the insulating strength between busbar 2 and the busbar 2, avoid the creepage problem that voltage difference leads to.

In this embodiment, the inner side wall of the mounting groove 11 is provided with the buckles 15, the number of the buckles 15 is 2, and the bus bar 2 can be firmly clamped in the mounting groove 11, however, in other embodiments, the number of the buckles 15 can be other numbers, and is not limited thereto.

In this embodiment, the device further comprises two output electrodes 6; in order to be able to better support and fix the output electrode 6; two plastic brackets are also arranged on the plastic sucking tray 1, and two output electrodes 6 are respectively fixed on the two plastic brackets; the two plastic supports provide support and fixation for the two output poles 6. The plastic bracket can strengthen the supporting strength, so that the output electrode 6 of the busbar 2 can be stably fixed on the plastic tray 1, and the strength is better.

In this embodiment, the two output electrodes 6 are respectively electrically connected with the FPC board; specifically, as shown in fig. 2, one of the extension portions 31 on the FPC board 3 is in direct contact with the output electrode 6, and electrical connection is achieved by laser welding.

In the specific embodiment, a positioning hole 22 is formed in the plastic support, a riveting column 13 is arranged at a position, corresponding to the positioning hole 22, on the plastic tray 1, and the plastic support is limited on the plastic tray 1 by sleeving the positioning hole 22 on the riveting column 13; the plastic bracket is also provided with a buckle 15, and the plastic bracket limits the output electrode 6 through the buckle 15. The output electrode 6 is enabled to be clamped and fixed on the plastic support more firmly in a limiting mode, and the firmness is better.

In this embodiment, the two plastic brackets include a first plastic bracket 4 and a second plastic bracket 5. The first plastic bracket 4 is arranged at one end part of the plastic sucking tray 1, and one output electrode 6 is fixedly arranged on the first plastic bracket 4; the second plastic bracket 5 is arranged at the other end part of the plastic sucking tray 1, and the other output electrode 6 is fixedly arranged on the second plastic bracket 5.

In this embodiment, as shown in fig. 3, the connection plug-in unit 32 is fixed on the second plastic support 5, the second plastic support 5 is provided with a positioning column 51, the connection plug-in unit 32 is provided with a corresponding through hole 33, the through hole 33 is sleeved on the positioning column 51 to limit the connection plug-in unit 32 on the second plastic support 5, and the side wall of the connection plug-in unit 32 is further provided with a buckle 15 for clamping the connection plug-in unit 32 on the connection plug-in unit 32 of the second plastic support 5.

In this embodiment, the width of the buckle 15 is preferably 6-10mm, so as to meet the fixing strength of the buckle 15, and meanwhile, the demolding can be better.

The production and assembly process of the utility model comprises the following steps:

the PC sheet is subjected to plastic suction molding through a plastic suction grinding tool, and the appearance and the slotted hole are processed through processes such as punching or laser cutting to form a plastic suction tray 1; further installing a plastic bracket, a busbar 2 and an FPC board 3 in sequence; the plastic bracket is sleeved on the rivet column 13 through the positioning hole 22 and sleeved on the plastic sucking tray 1; each busbar 2 is sleeved on the rivet column 13 through the positioning hole 22, so that the busbar 2 is installed in each installation groove 11 and is clamped, the positioning hole 22 of the connecting plug 32 of the FPC board 3 is sleeved on the positioning column 51 of the plastic bracket, the FPC board 3 is placed on the plastic tray 1, and the extension part 31 is erected on the busbar 2; then the output electrode 6 is clamped and fixed in the plastic bracket; flattening the rivet column 13 through the hot rivet, and fixing the plastic bracket, the busbar 2 and the FPC board 3; finally, electrically connecting the extension 31 of the FPC board 3 with the busbar 2 and the output electrode 6 through a laser or ultrasonic welding process; and (5) finishing assembly.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. An FPC assembly comprises a plastic sucking tray, a busbar and an FPC board; the busbar and the FPC board are fixedly arranged on the plastic sucking tray, and the FPC board is electrically connected with the busbar; the method is characterized in that: the plastic sucking tray is of a strip-shaped structure; the plastic sucking tray is provided with a plurality of mounting grooves on two sides parallel to the long side direction respectively, the plurality of mounting grooves are sequentially arranged along the long side direction, the busbar is mounted in the mounting grooves, the mounting grooves are provided with riveting columns, the busbar is correspondingly provided with positioning holes, and the positioning holes are sleeved on the riveting columns so that the busbar is limited in the mounting grooves; one end of the FPC board along the length direction is connected with a connecting plug-in.

2. The FPC assembly of claim 1, wherein: the inner side wall of the mounting groove is provided with a buckle for clamping and fixing the busbar in the mounting groove.

3. The FPC assembly of claim 2, wherein: the device also comprises two output poles; two plastic brackets are arranged on the plastic sucking tray, and two output poles are respectively fixed on the two plastic brackets; the two output electrodes are respectively and electrically connected with the FPC board; the plastic bracket is provided with a buckle, and the output electrode is clamped and fixed by the plastic bracket through the buckle.

4. A FPC assembly according to claim 3, wherein: the two plastic brackets are a first plastic bracket and a second plastic bracket respectively; the first plastic bracket is arranged at one end part of the plastic sucking tray, and the second plastic bracket is arranged at the other end part of the plastic sucking tray; the connecting plug-in is fixed on the second plastic bracket.

5. The FPC assembly of claim 4, wherein: the second plastic support is provided with a positioning column, the connecting plug-in unit is provided with a corresponding through hole, and the through hole is sleeved on the positioning column to limit the connecting plug-in unit on the second plastic support.

6. The FPC assembly of claim 1, wherein: the bottom of the rivet column is provided with a downward concave cambered surface along the circumferential direction.

7. The FPC assembly of claim 1, wherein: the thickness of the plastic sucking tray is 0.5-1.0mm, and the plastic sucking tray is made of PC materials.

8. A FPC assembly according to claim 3, wherein: the width of the buckle is 6-10mm.

9. The FPC assembly of claim 1, wherein: the number of the positioning holes of each busbar is one; the busbar is also provided with a plurality of electric core holes which are sequentially arranged at intervals along the long side direction of the plastic sucking tray, and one electric core hole is arranged opposite to the positioning hole; the size of the cell hole is smaller than that of the positioning hole.