CN220210690U

CN220210690U - FPC maintenance component

Info

Publication number: CN220210690U
Application number: CN202321688983.3U
Authority: CN
Inventors: 黄强
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-12-19
Anticipated expiration: 2033-06-28

Abstract

The utility model discloses an FPC maintenance assembly, which comprises a conductive piece and a first electric connecting piece, wherein the first end of the conductive piece is used for being electrically connected with a busbar, and the second end of the conductive piece is used for being electrically connected with a PIN needle; the first electric connecting piece is fixed at the first end of the conducting piece, and the first electric connecting piece is detachably connected with the bus bar so that the conducting piece is electrically connected with the bus bar. Through setting up first electric connector for FPC maintenance subassembly can be dismantled with the busbar and be connected, like this, can make things convenient for the maintenance to change, has improved the maintenance speed, has reduced the maintenance degree of difficulty, can also avoid using the welding to cause the damage to the electric core and cause the injury to the maintenance personal.

Description

FPC maintenance component

Technical Field

The utility model relates to the technical field of batteries, in particular to an FPC maintenance assembly.

Background

With the rapid development of the new energy automobile industry, the FPC (flexible printed circuit) is rapidly and widely applied in the industry as a battery information acquisition assembly with the advantages of small size, light weight, low manufacturing cost, high reliability and the like. The FPC is used as a part with dense loops and easy damage in a battery system, and usually is accompanied with short circuit risks, so that once a collected circuit is short-circuited, the FPC is ablated and fires, and the whole module fires and explodes, so that drivers and passengers are safe in severe cases. Therefore, in order to prevent the FPC sampling line from being shorted, an etching FUSE (insurance) is generally embedded in the FPC to realize avoidance of potential safety hazards. If the FPC is shorted, FUSE is first fused to protect the circuit. After the dangerous discharge, the entire FPC is disabled due to the functional damage of the collection circuit, and at this time, the replacement of the module or the battery pack causes a great waste of costs.

In the prior art, two main methods exist for repairing the FPC, one is to use the FPC for integral replacement, and the other is a flying wire method. The method for integrally replacing the FPC requires a large amount of special equipment, professional maintenance personnel and battery transportation cost, so that the replacement and maintenance of the FPC are difficult; the flying wire method (also called jumper wire) has the problems of inconvenient operation, easy occurrence of cold welding, damage to the battery core and injury to maintenance personnel, and in addition, the flying wire has no FUSE, so that the subsequent safe use of the battery pack cannot be protected.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the FPC maintenance assembly which can effectively reduce the maintenance difficulty of the FPC, avoid the damage to the battery cell and the maintenance personnel, and simultaneously, the FPC maintenance assembly is also provided with the FUSE, so that the safety of a circuit can be effectively protected.

According to the FPC maintenance assembly provided by the embodiment of the utility model, the FPC maintenance assembly comprises a conductive piece and a first electric connecting piece, wherein the first end of the conductive piece is used for being electrically connected with a busbar, and the second end of the conductive piece is used for being electrically connected with a PIN needle; the first electric connecting piece is fixed at the first end of the conducting piece, and the first electric connecting piece is detachably connected with the bus bar so that the conducting piece is electrically connected with the bus bar.

According to the FPC maintenance assembly provided by the embodiment of the utility model, the first electric connecting piece is arranged, so that the FPC maintenance assembly can be detachably connected with the busbar, the maintenance and replacement can be facilitated, the maintenance speed is improved, the maintenance difficulty is reduced, and the damage to the battery core and the damage to maintenance personnel caused by welding can be avoided.

In addition, the FPC repair assembly according to the present utility model may further have the following additional technical features:

in some embodiments, the conductive member includes a first conductive segment, a second conductive segment, and a fusing segment, two ends of the fusing segment are electrically connected to the first conductive segment and the second conductive segment, respectively, an overcurrent area of the fusing segment is smaller than an overcurrent area of the first conductive segment, and an overcurrent area of the fusing segment is smaller than an overcurrent area of the second conductive segment.

In some embodiments, the first electrical connector comprises a first metal sheet for mating with a slot on the busbar.

In some embodiments, the first metal sheet is a nickel sheet.

In some embodiments, the conductive member is a flat wire.

In some embodiments, the FPC repair assembly further comprises a second electrical connector and a round wire, the second electrical connector is fixed at the second end of the conductive member, one end of the round wire is fixedly connected with the second electrical connector, and the other end of the round wire is fixedly connected with the PIN.

In some embodiments, the second electrical connector comprises a second metal sheet.

In some embodiments, the second metal sheet is a nickel sheet.

The utility model also provides a busbar with the embodiment.

According to the busbar provided by the embodiment of the utility model, the slot is arranged on the busbar, the first electric connector of the FPC maintenance assembly is inserted into the slot, and through the arrangement of the FPC maintenance assembly, the conduction between the busbar and an external circuit can be realized again, and meanwhile, when the connection failure occurs again, the busbar is convenient to maintain and replace, and the maintenance difficulty is effectively reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is an assembly view of an FPC service assembly and a buss bar according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of a first electrical connector and socket of the FPC repair assembly according to an embodiment of the present utility model.

Reference numerals:

100. an FPC maintenance assembly; 200. a busbar;

1. a conductive member; 11. a first conductive segment; 12. a second conductive segment; 13. a fuse section;

2. a first electrical connection; 3. a second electrical connection; 4. round wires;

5. a slot; 51. anti-slip teeth.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

An FPC repair assembly 100 according to an embodiment of the present utility model is described below with reference to fig. 1-2.

As shown in fig. 1 to 2, the FPC repair assembly 100 according to the embodiment of the present utility model includes a conductive member 1 and a first electrical connector 2, a first end of the conductive member 1 being for electrical connection with a busbar 200, and a second end of the conductive member 1 being for electrical connection with a PIN needle; the first electrical connector 2 is fixed at a first end of the conductive member 1, and the first electrical connector 2 is detachably connected to the busbar 200, so that the conductive member 1 is electrically connected to the busbar 200. In this embodiment, when the FPC is repaired, the conductive member 1 is used to conduct current so that the bus bar 200 end and the PIN end can be electrically connected again; the first electric connector 2 is used for cooperating with the busbar 200, so that the whole FPC maintenance assembly 100 can be detachably connected with the busbar 200, and the electric connection between the electric connector 1 and the busbar 200 is ensured, thus, the maintenance difficulty is effectively reduced, welding is not required, and the damage to the battery cell and the injury to maintenance personnel can be effectively avoided.

According to the FPC maintenance assembly 100 provided by the embodiment of the utility model, the first electric connector 2 is arranged, so that the FPC maintenance assembly 100 can be detachably connected with the busbar 200, and therefore, the FPC maintenance assembly can be conveniently maintained and replaced, the maintenance speed is improved, the maintenance difficulty is reduced, and the damage to the battery cell and the damage to maintenance personnel caused by welding can be avoided.

In one embodiment of the present utility model, as shown in fig. 1 to 2, the conductive member 1 includes a first conductive segment 11, a second conductive segment 12, and a fusing segment 13, two ends of the fusing segment 13 are electrically connected to the first conductive segment 11 and the second conductive segment 12, respectively, an overcurrent area of the fusing segment 13 is smaller than an overcurrent area of the first conductive segment 11, and an overcurrent area of the fusing segment 13 is smaller than an overcurrent area of the second conductive segment 12. In this embodiment, the first conductive segment 11, the second conductive segment 12 and the fusing segment 13 can be fused by the current with the current magnitude within the safety threshold, and when the current magnitude exceeds the safety threshold range, the fusing segment 13 will be fused, so that the whole conductive path will be disconnected, and the function of protecting the battery cell is achieved.

For example, as shown in fig. 1, the wire at the fusing section 13 in the conductive member 1 is thinner, and the wire at the first conductive section 11 and the second conductive section 12 is thicker, so that the current magnitude at the fusing section 13 is smaller than the current magnitude at the first conductive section 11 and the second conductive section 12, and therefore, when the current magnitude exceeds the limit that the fusing section 13 can withstand, the wire at the fusing section 13 can be fused, thereby breaking the circuit and protecting the battery cell.

In one embodiment of the present utility model, as shown in fig. 1-2, the first electrical connector 2 comprises a first metal sheet for mating with the slot 5 on the busbar 200. In this embodiment, the first metal sheet not only can be in plug-in fit with the slot 5 on the busbar 200, so that maintenance and replacement are facilitated, but also can conduct current, so that the conductive member 1 can be electrically connected with the busbar 200.

In one embodiment of the present utility model, as shown in fig. 1 to 2, the first metal sheet is a nickel sheet. The metal nickel has good conductivity, can ensure the conduction of a circuit, and simultaneously has good ductility, so that the nickel sheet is smoother when being inserted into the slot 5 on the busbar 200, and the situation of locking cannot occur.

In an embodiment of the present utility model, as shown in fig. 1 to 2, the conductive member 1 is a flat wire, so that the occupation of space can be reduced, and the FPC repair assembly 100 can be applied in a repair environment with a relatively small space, thereby effectively increasing the application range of the FPC repair assembly 100.

In one embodiment of the present utility model, as shown in fig. 1 to 2, the FPC repair assembly 100 further includes a second electrical connector 3 and a round wire 4, the second electrical connector 3 is fixed at the second end of the conductive member 1, one end of the round wire 4 is fixedly connected with the second electrical connector 3, and the other end of the round wire 4 is fixedly connected with the PIN. In this embodiment, the second electrical connector 3 is cooperatively connected with the round wire 4, so that the conductive member 1 can be electrically connected with the PIN, and the busbar 200 and the PIN are conducted again, thereby achieving the purpose of maintenance.

In this embodiment, the PIN is fixed on one end of the round wire 4, and the maintenance personnel inserts the PIN on one end of the round wire 4 into the slot 5 on the circuit board, so as to realize electrical connection, so that the circuit can be turned on again, and when the FPC maintenance assembly 100 needs to be replaced, the round wire 4 is only required to be pulled out from the slot 5, and the FPC maintenance assembly 100 is replaced integrally, thereby effectively reducing the maintenance difficulty and improving the maintenance efficiency.

In one embodiment of the utility model, as shown in fig. 1-2, the second electrical connector 3 comprises a second metal sheet. The second metal sheet is capable of conducting a current so that the conductive member 1 can be electrically connected with the PIN needle.

Further, the second metal sheet is a nickel sheet. The metal nickel has good conductivity, can ensure the conduction of a circuit, and simultaneously has good ductility, so that the nickel sheet is smoother when being inserted into the slot 5 on the busbar 200, and the situation of locking cannot occur.

The utility model also provides a busbar 200 with the embodiment.

According to the busbar 200 of the embodiment of the utility model, the slot 5 is arranged on the busbar 200, the first electric connector 2 of the FPC maintenance assembly 100 is inserted into the slot 5, and by arranging the FPC maintenance assembly 100, the conduction between the busbar 200 and an external circuit can be realized again, and meanwhile, when the connection failure occurs again, the maintenance and the replacement are convenient, and the maintenance difficulty is effectively reduced.

In one embodiment of the present utility model, as shown in fig. 1 to 2, the socket 5 has anti-slip teeth 51 therein. In this embodiment, the anti-slip tooth 51 can effectively improve the connection strength between the first electrical connector 2 and the slot 5, and can effectively prevent the first electrical connector 2 from falling out of the slot 5, so as to ensure the stability of the circuit.

For example, as shown in fig. 2, the plurality of anti-slip teeth 51 are provided in plural, the plurality of anti-slip teeth 51 are disposed on the inner wall of the slot 5 at intervals, the plurality of anti-slip teeth 51 are disposed obliquely and extend toward the insertion direction, when the first electric connector 2 is inserted into the slot 5, the plural will squeeze the surface of the first electric connector 2, so that a slight recess appears on the surface of the first electric connector 2, when the first electric connector 2 is pulled out from the slot 5, the plurality of anti-slip teeth 51 will cooperate with the recess on the surface of the first electric connector 2 to block the first electric connector 2 from being pulled out from the slot 5, thereby improving the connection strength between the first electric connector 2 and the slot 5 and avoiding the first electric connector 2 from being pulled out from the slot 5.

Other constructions and operations of FPC repair assembly 100 according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. An FPC repair assembly, comprising:

the first end of the conductive piece is used for being electrically connected with the busbar, and the second end of the conductive piece is used for being electrically connected with the PIN needle;

the first electric connecting piece is fixed at the first end of the conducting piece and is detachably connected with the busbar, so that the conducting piece is electrically connected with the busbar.

2. The FPC repair assembly of claim 1, wherein the conductive member comprises a first conductive segment, a second conductive segment, and a fuse segment, wherein two ends of the fuse segment are electrically connected to the first conductive segment and the second conductive segment, respectively, and wherein the area of the fuse segment that flows through is smaller than the area of the first conductive segment that flows through is smaller than the area of the second conductive segment that flows through.

3. The FPC repair assembly of claim 1, wherein the first electrical connector comprises a first metal sheet for mating with a socket on the buss bar.

4. The FPC repair assembly of claim 3, wherein said first metal sheet is a nickel sheet.

5. The FPC repair assembly of claim 1, wherein the conductive member is a flat wire.

6. The FPC repair assembly of claim 1, further comprising a second electrical connector secured to a second end of said conductive member and a round wire having one end fixedly connected to said second electrical connector and the other end fixedly connected to a PIN.

7. The FPC repair assembly of claim 6, wherein said second electrical connector comprises a second metal sheet.

8. The FPC repair assembly of claim 7, wherein said second metal sheet is a nickel sheet.