CN216847595U

CN216847595U - Battery sampling FPC subassembly leak welding detection device

Info

Publication number: CN216847595U
Application number: CN202122651398.3U
Authority: CN
Inventors: 刘美才; 钟胜祥; 洪超育
Original assignee: Xiamen Bolion Tech Co ltd
Current assignee: Xiamen Bolion Tech Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-06-28
Anticipated expiration: 2031-11-01

Abstract

The utility model relates to a leakage welding detection device of a battery sampling FPC assembly, wherein the battery sampling FPC assembly is provided with a nickel sheet and an aluminum row which are welded together by laser, the leakage welding detection device comprises a platform, a lower template, an upper template, a probe, a magnetic suction head and a pressing mechanism, the lower template is fixed on the platform and is used for positioning the battery sampling FPC assembly to be tested, the probe and the magnetic suction head are installed on the upper template, the pressing mechanism is installed on the platform and is in driving connection with the upper template and is used for pressing the upper template downwards so that the probe and the magnetic suction head are lowered until the probe contacts the aluminum row, and meanwhile, a magnet of the magnetic suction head is close to the nickel sheet. The utility model has simple structure, convenient operation and high detection accuracy, and greatly reduces the risk of outflow of defective products.

Description

Battery sampling FPC subassembly leak welding detection device

Technical Field

The utility model relates to the field of FPC (flexible printed circuit), in particular to a welding leakage detection device of a battery sampling FPC assembly.

Background

With the strong support and encouragement of the national policy on new energy vehicles, the new energy vehicle racing track is heated more and more, the new energy battery pack also becomes one of the core technologies in the field of new energy vehicles, and the stability of the product quality and performance becomes an indispensable pass for product use. And the product quality is ensured to be stable, and besides stable process capability, more comprehensive and effective detection capability is also needed.

At present, a nickel sheet and aluminum bar combination mode in a battery sampling FPC assembly in the industry mainly adopts a laser welding process. And at present laser welding equipment is the application image recognition location, and the surface gloss degree of aluminium row, nickel piece and the light angle of workshop all can produce certain influence to the location discernment, leads to the course of working still to have the discernment mistake of certain proportion, leads to leaking laser welding's appearance.

After the FPC assembly is assembled, the nickel sheet and the aluminum bar are always attached tightly, the nickel sheet and the aluminum bar are always in a conducting state, a common function test jig is used, the problem of welding leakage cannot be intercepted, the problem of welding leakage is caused to flow out easily, and serious functional hidden dangers are caused.

Disclosure of Invention

The utility model aims to provide a welding leakage detection device of a battery sampling FPC assembly, which aims to solve the problems. Therefore, the utility model adopts the following specific technical scheme:

the utility model provides a battery sampling FPC subassembly leak welding detection device, battery sampling FPC subassembly has nickel piece and aluminium row that laser welding is in the same place, wherein, leak welding detection device includes platform, lower bolster, cope match-plate pattern, probe, magnetic force suction head and pushes down the mechanism, the lower bolster is fixed on the platform for the battery sampling FPC subassembly of the examination of awaiting measuring in location, the probe with the magnetic force suction head is installed on the cope match-plate pattern, it installs to push down the mechanism on the platform and with the cope match-plate pattern drive is connected, is used for pushing down the cope match-plate pattern makes the probe with the magnetic force suction head descends to the probe contact the aluminium is arranged, simultaneously the magnet of magnetic force suction head is close to the nickel piece.

Further, the magnetic attraction head comprises an insulating mounting post, and the magnet is embedded in and mounted on the lower end face of the mounting post and does not expose the lower end face.

Further, the mounting post is made of bakelite.

Further, the mounting column is a square column.

Further, the lower end face of the mounting column is provided with a groove, the size of the groove is larger than that of the nickel sheet, a circular magnet mounting hole is formed in the middle of the groove, and the magnet is fixed in the magnet mounting hole and flush with the bottom face of the groove.

Furthermore, the pushing mechanism and the driving connection structure of the upper die plate comprise a connecting strip, a connecting plate and a plurality of spring pins, the connecting strip is fixed on the connecting plate and is fixedly connected with the lower end of the lifting rod of the pushing mechanism, and the connecting plate is located above the upper die plate and is connected with the upper die plate through the spring pins.

Further, a magnetic suction head mounting plate is further arranged between the connecting plate and the upper template, the magnetic suction head mounting plate is fixed on the connecting plate, the upper end of the magnetic suction head is fixed on the magnetic suction head mounting plate, and the lower end of the magnetic suction head penetrates through the upper template.

Furthermore, a limiting ring is arranged on the magnetic suction head and used for limiting the length of the magnetic suction head penetrating through the upper template.

Furthermore, the limiting ring is a rubber ring.

Further, the pressing mechanism is manual.

By adopting the technical scheme, the utility model has the beneficial effects that: simple structure, convenient operation, detection accuracy is high, greatly reduced the risk that problem product flowed.

Drawings

To further illustrate the various embodiments, the present invention provides the accompanying figures. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. The components in the drawings are not necessarily to scale, and similar reference numerals are generally used to identify similar components.

FIG. 1 is a schematic illustration of the present invention when not in use;

FIG. 2 is a schematic illustration of the present invention in use;

FIG. 3 is a cross-sectional view of a magnetic attraction head of the utility model;

FIG. 4 is a bottom view of the magnetic attraction head of the present invention;

FIG. 5 is a schematic illustration of detection of a normal weld;

fig. 6 is a schematic view of detection of a missing weld.

Detailed Description

It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials described therein are commercially available unless otherwise specified; in the description of the present application, the terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships that are based on the orientation shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered as limiting the present invention.

Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

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

Referring to fig. 1 and 2, a leakage welding detection device of a battery sampling FPC assembly 100 is described, the battery sampling FPC assembly 100 has a nickel sheet 101 and an aluminum row 102 welded together by laser, wherein the leakage welding detection device includes a platform 1, a lower template 2, an upper template 3, a probe 4, a magnetic suction head 5 and a pressing mechanism 6. The lower template 2 is fixed on the platform 1 and used for positioning the battery sampling FPC assembly 100 to be tested. The probe 4 and the magnetic attraction head 5 are mounted on the upper template 3. The probe 4 is electrically connected to a function tester, and its structure is well known. A pressing mechanism 6 is mounted on the platform 1 and is in driving connection with the upper template 3 for pressing down the upper template 3, so that the probes 4 and the magnetic suction head 5 are lowered until the probes 4 contact the aluminum row 102, and simultaneously the magnets 52 of the magnetic suction head 5 are close to the nickel sheet 101. When the nickel sheet 101 and the aluminum bar 102 are normally welded, the nickel sheet 101 is not attracted by the magnet 52, as shown in fig. 5, the function testing machine shows that the test is qualified (OK); when the nickel plate 101 and the aluminum bar 102 are welded together, the nickel plate 101 is attracted by the magnet 52 and separated from the aluminum bar 102, and the function tester fails the test (NG) as shown in fig. 6. The whole testing process is very simple and clear, the working efficiency is high, the detection accuracy is high, and the risk of outflow of a problem product is greatly reduced.

As shown in fig. 3 and 4, the magnetic attraction head 5 includes a mounting post 51 and a magnet 52, the magnet 52 being embedded in and mounted to a lower end face of the mounting post 51 without being exposed therefrom. Specifically, the lower end face of the mounting post 51 has a recess 511. In this embodiment, the groove 511 has a T-shape. The size of the notch 511 is larger than the size of the nickel plate 102 to ensure that the nickel plate 102 can be attracted into the notch 511 by the magnet 52 to be separated from the row 101 of aluminum. The middle of the groove 511 is provided with a circular magnet mounting hole, and the magnet 52 is fixed (by adopting a screw, glue, a threaded fit, an over-win fit or the like) in the magnet mounting hole and is flush with the bottom surface of the groove 511. It should be understood that the magnet 52 may be other than circular. The mounting post 51 may be made of an insulating material such as bakelite. In the present embodiment, the mounting post 51 is a square post. It should be understood that the mounting post 51 may also be circular.

Referring to fig. 1, the driving connection structure between the pressing mechanism 6 and the upper mold plate 3 includes a connection bar 7, a connection plate 8 and a plurality of spring pins 9. The connecting bar 7 is fixed (e.g., by a screw) to the connecting plate 8 and is fixedly connected (e.g., by a nut) to the lower end of the lifting rod 61 of the hold-down mechanism 6. The connecting plate 8 is located above the upper formwork 3 and is connected together by spring pins 9. The spring pins 9 can play a role in buffering, and damage to the probe 4 and a product (the battery sampling FPC assembly 100) due to too fast pressing is avoided. The connecting plate 8 is substantially the same size as the upper plate 3. It should be understood that in some embodiments, the connecting bar 7 may be omitted, and the connecting plate 6 is directly and fixedly connected with the lower end of the lifting rod 61 of the pressing mechanism 6.

In addition, a magnetic suction head mounting plate 10 is also provided between the connecting plate 8 and the upper plate 3, said magnetic suction head mounting plate 10 being fixed (for example, by means of screws and connecting studs 11) on the connecting plate 8. The magnetic tip mounting plate 10 is smaller in size than the attachment plate 8. The upper end of the magnetic tip 5 is fixed (e.g. by screws) to the magnetic tip mounting plate 10 and the lower end passes through the upper template 3. Preferably, a limiting ring 53 is arranged on the magnetic suction head 5, and the limiting ring 53 is used for limiting the length of the magnetic suction head 5 penetrating through the upper template 3. Through spacing collar 53, can accurate control magnet 52 and the distance between nickel piece 102, ensure that nickel piece 102 can be inhaled under the condition of leaking the welding, avoid missing the detection. Preferably, the limiting ring 53 is a rubber ring, and the circumference of the rubber ring is smaller than that of the mounting post, so that the rubber ring can be tightened on the mounting post 51.

In the present embodiment, the pressing mechanism 6 is a manual type, and a commercially available push-pull type quick clamp can be used. It should be understood that the hold-down mechanism 6 may also be a pneumatic or electric push rod.

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 detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a battery sampling FPC subassembly leak welding detection device, battery sampling FPC subassembly has nickel piece and aluminium row that the laser welding is in the same place, a serial communication port, leak welding detection device includes platform, lower bolster, cope match-plate pattern, probe, magnetic force suction head and pushes down the mechanism, the lower bolster is fixed on the platform for the battery sampling FPC subassembly of the examination of location examination awaiting measuring, the probe with the magnetic force suction head is installed on the cope match-plate pattern, it installs to push down the mechanism on the platform and with the cope match-plate pattern drive is connected, is used for pushing down the cope match-plate pattern makes the probe with the magnetic force suction head descends to the probe contact the aluminium row, simultaneously the magnet of magnetic force suction head is close to the nickel piece.

2. The device for detecting solder leak of a battery sampling FPC assembly as recited in claim 1, wherein said magnetic attraction head includes an insulative mounting post, said magnet being mounted embedded in a lower end surface of said mounting post and not exposed at said lower end surface.

3. The device for detecting solder leak of a battery sampling FPC assembly as set forth in claim 2, wherein said mounting posts are made of bakelite.

4. The device for detecting solder leak of a battery sampling FPC assembly as recited in claim 2, wherein said mounting posts are square posts.

5. The device for detecting the missing solder of the battery sampling FPC assembly according to claim 2, wherein the lower end surface of the mounting post has a groove, the size of the groove is larger than that of the nickel plate, a circular magnet mounting hole is formed in the middle of the groove, and the magnet is fixed in the magnet mounting hole and is flush with the bottom surface of the groove.

6. The device for detecting solder leak of a battery sampling FPC assembly according to claim 1, wherein said driving connection structure of said pressing mechanism and said upper mold plate includes a connection bar, a connection plate and a plurality of spring pins, said connection bar is fixed on said connection plate and is fixedly connected with the lower end of the lifting rod of said pressing mechanism, said connection plate is located above said upper mold plate and is connected together by said spring pins.

7. The device for detecting the missing welding of the battery sampling FPC assembly according to claim 6, wherein a magnetic suction head mounting plate is further disposed between the connecting plate and the upper mold plate, the magnetic suction head mounting plate is fixed on the connecting plate, an upper end of the magnetic suction head is fixed on the magnetic suction head mounting plate, and a lower end of the magnetic suction head penetrates through the upper mold plate.

8. The device for detecting the missing welding of the battery sampling FPC assembly according to claim 7, wherein a limiting ring is disposed on the magnetic suction head, and the limiting ring is used for limiting the length of the magnetic suction head penetrating through the upper template.

9. The device for detecting the missing welding of a battery sampling FPC assembly according to claim 8, wherein said limiting ring is a rubber ring.

10. The device for detecting solder leak of a battery sampling FPC assembly according to claim 1, wherein said pressing mechanism is manual.