CN214477805U

CN214477805U - Double-sided board

Info

Publication number: CN214477805U
Application number: CN202120636324.XU
Authority: CN
Inventors: 蔡小正; 刘兴文; 潘丽
Original assignee: Akm Electronics Technology Suzhou Co ltd
Current assignee: Akm Electronics Technology Suzhou Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-10-22
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses a double-sided board, which comprises a U-shaped flexible substrate, wherein the flexible substrate comprises a first substrate, a second substrate and a middle connecting plate, the first substrate and the second substrate are respectively provided with a plurality of cantilever parts along the side edges of the length direction, and a through groove is arranged between each cantilever part and the flexible substrate; the flexible substrate is provided with a plurality of first wires on the front side and a plurality of second wires on the back side, one ends of the first wires and one ends of the second wires are respectively provided with a plurality of conducting holes, the first wires and the second wires are respectively communicated with the conducting holes, fuses are arranged on the first wires and/or the second wires, the fuses comprise fusing parts with fuses, and the fuses are in spiral shapes or a plurality of bent shapes. The double-sided board provided by the utility model is provided with the first substrate and the second substrate to increase the number of the connected single batteries; the signal acquisition wire harness is prevented from being torn due to pulling by arranging the cantilever part, the through groove and the buffer part; the fuse is in a spiral shape or a plurality of bent shapes, heat is gathered favorably, and the instant temperature reaches a melting point.

Description

Double-sided board

Technical Field

The utility model relates to a double sided board field especially relates to a double sided board.

Background

The battery signal acquisition pencil can be dragged after the bulge takes place to the current battery module after long-term the use, or the battery module leads to dragging the battery signal acquisition pencil at the vibration of abominable operating mode, finally leads to the signal acquisition pencil because of dragging the quilt to tear. The existing fuse is of a long strip-shaped structure, has the defects of high heat dissipation speed, incapability of gathering heat, large volume, heating and unbalanced heat dissipation, and when a circuit breaks down or is abnormal, the current is overlarge, the temperature of the fuse cannot reach a melting point instantly, so that the fuse cannot be fused in a short time, and the whole circuit system (such as a battery management system) is damaged.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a double-sided board, technical scheme is as follows:

the utility model provides a double-sided board, it includes the flexible substrate of U-shaped structure, flexible substrate includes first base plate, second base plate and sets up the intermediate junction board between first base plate and second base plate, first base plate, second base plate all are provided with a plurality of cantilever parts along its length direction's side border, have seted up logical groove between each cantilever part and the flexible substrate, the outer tip of each cantilever part is provided with the connecting portion that is used for connecting the monomer battery;

the flexible substrate is characterized in that a plurality of first wires are arranged on the front side of the flexible substrate, a plurality of second wires are arranged on the reverse side of the flexible substrate, a plurality of via holes are formed in one end of each first wire and one end of each second wire respectively, the first wires and the second wires are communicated with the via holes respectively, fuses are arranged on the first wires and/or the second wires and comprise two end parts and a fusing part located between the two end parts, each fusing part is provided with a fuse wire, and the fuse wires are of a spiral or a plurality of bent continuous structures.

Further, the through groove is of an L-shaped structure.

Further, temperature sensors are arranged on the first substrate and the second substrate.

Furthermore, an inward-recessed buffer portion is respectively arranged between the first substrate and the plurality of cantilever portions thereon, and an inward-recessed buffer portion is respectively arranged between the second substrate and the plurality of cantilever portions thereon.

Further, the buffer part is of an S-shaped structure.

Further, the number of the via holes arranged at one end of the first conducting wire and one end of the second conducting wire is five.

Further, the fuse is formed by connecting a plurality of half frames.

Further, the fuse wire is surrounded in a circular spiral manner or an elliptical spiral manner.

Further, two tip of fuse are first tip and second tip respectively, fusing portion has two tips, the fuse is fixed to be set up between two tips, two tips of fusing portion are third tip and fourth tip respectively, first tip is connected with the third tip, the second tip is connected with the fourth tip.

The utility model provides a beneficial effect that technical scheme brought as follows:

the double-sided board designed by the utility model can increase the number of the connected single batteries by arranging the first substrate and the second substrate, thereby increasing the capacity; the battery signal acquisition wiring harness is prevented from being pulled due to bulging of the battery module after long-term use or under severe working condition vibration by arranging the cantilever part, the through groove and the buffer part, the signal acquisition wiring harness is prevented from being torn due to pulling, the service life is prolonged, and the reliability is enhanced; the fuse on the double-sided board is spiral or in a plurality of bending shapes, heat accumulation is facilitated, heat dissipation is slow, precision is high, response is fast, the instant temperature reaches a melting point, heating and heat dissipation are balanced, and the length of a fuse element is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used 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 invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a perspective view of a double-sided board provided in an embodiment of the present invention;

fig. 2 is a top view of a double-sided board provided by an embodiment of the present invention;

FIG. 3 is an enlarged view of FIG. 1;

FIG. 4 is an enlarged view of FIG. 1;

FIG. 5 is a second structural diagram of a fuse according to an embodiment of the present invention;

FIG. 6 is a third block diagram of a fuse according to an embodiment of the present invention;

FIG. 7 is a fourth block diagram of a fuse according to an embodiment of the present invention;

fig. 8 is a perspective view of a connector according to an embodiment of the present invention.

Wherein the reference numerals include: 1-first substrate, 2-second substrate, 3-intermediate connecting plate, 4-cantilever part, 5-through groove, 6-connecting part, 7-through hole, 8-fuse, 81-fuse, 82-first end part, 83-second end part, 84-third end part, 85-fourth end part, 9-temperature sensor, 10-buffer part and 11-connector.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.

In an embodiment of the present invention, a double-sided board is provided, and the specific structure of the double-sided board is shown in fig. 1 to 8. The double-sided board comprises a flexible substrate with a U-shaped structure, the flexible substrate comprises a first substrate 1, a second substrate 2 and an intermediate connecting board 3 arranged between the first substrate 1 and the second substrate 2, the intermediate connecting board 3 is used for connecting a connector 11, and the first substrate 1 and the second substrate 2 are arranged oppositely.

First base plate 1, second base plate 2 all are provided with a plurality of cantilever parts 4 along its length direction's side border, have seted up logical groove 5 between each cantilever part 4 and the flexible substrate, it is preferred to lead to groove 5L shape structure, gives the leeway of signal acquisition pencil buffering for cantilever part 4 can slightly move about, takes place to swell and pulls battery signal acquisition pencil through long-term the back of using to avoid the battery module to lead to pulling battery signal acquisition pencil because the battery module is at the vibration of abominable operating mode.

Each through groove comprises a transverse groove part and a longitudinal groove part which are communicated, the transverse groove part extends along a first direction (the length direction of the first substrate and the length direction of the second substrate), the longitudinal groove part extends along a second direction, the second direction is perpendicular to the first direction, and the width of the transverse groove part of each through groove is smaller than or equal to the width of the longitudinal groove part.

The transverse groove parts and the longitudinal groove parts of the plurality of through grooves on one side edge of the first substrate along the length direction of the first substrate are different in position, the transverse groove parts of one or more through grooves are arranged on the left side of the longitudinal groove part, the transverse groove parts of other through grooves are arranged on the right side of the longitudinal groove part, similarly, the transverse groove parts and the longitudinal groove parts of the plurality of through grooves on the second substrate are also arranged as above, and the plurality of through grooves are designed to be arranged differently according to different connected battery arrangements.

The outer end part of each cantilever part 4 is provided with a connecting part 6 for connecting the single battery, and an insulating protective layer is formed between the connecting part 6 and the cantilever part 4 through dispensing. The first substrate and the second substrate are arranged, so that the connection number of the single batteries can be increased, and further the capacity is increased.

The flexible substrate is characterized in that a plurality of first conducting wires are arranged on the front side of the flexible substrate, a plurality of second conducting wires are arranged on the back side of the flexible substrate, a plurality of conducting holes 7 are formed in one end of each first conducting wire and one end of each second conducting wire respectively, the first conducting wires and the second conducting wires are communicated with the conducting holes 7 respectively, the first conducting wires on the front side of the flexible substrate are in one-to-one correspondence with the second conducting wires on the back side of the flexible substrate, the conducting holes 7 at one end of each first conducting wire are in one-to-one correspondence with the conducting holes 7 at one end of the corresponding second conducting wires, and the first conducting wires and the second conducting wires are communicated with the conducting holes 7 for conducting electricity.

Preferably, the number of the via holes 7 arranged at one end of the first conducting wire and one end of the second conducting wire is five, the number of the originally designed via holes 7 is two, and the via holes of the double-sided board are designed in a redundant manner, that is, the five via holes 7 can improve the current-carrying capacity and reduce the risk of hole failure.

The outer end of each cantilever part 4 on the first substrate 1 is not flush with the outer end of the first substrate 1, and the outer end of each cantilever part 4 on the second substrate 2 is not flush with the outer end of the second substrate 2.

The buffer parts 10 which are recessed inwards are respectively arranged between the first substrate 1 and the plurality of cantilever parts 4 on the first substrate, and the buffer parts 10 which are recessed inwards are respectively arranged between the second substrate 2 and the plurality of cantilever parts 4 on the second substrate, so that the dragging buffer can be further realized, and the signal acquisition wiring harness is prevented from being torn due to dragging. The cushioning portion 10 is preferably of an S-shaped configuration.

The first substrate 1 and the second substrate 2 are both provided with temperature sensors 9, which are NTC devices, for collecting temperature information.

The fuse 8 is arranged on the first wire and/or the second wire, the fuse 8 comprises two end portions and a fusing portion located between the two end portions, the fusing portion is provided with a fuse 81, and the fuse 81 is of a spiral or multiple curved continuous structure.

Each fuse 8 is an integral structure, each fuse 8 comprises two end parts and a fusing part connected between the two end parts, the two end parts are preferably in a linear structure, and the two end parts are respectively fixed on the adjacent copper sheets.

The fuse part is provided with two end parts and a fuse wire 81 fixedly arranged between the two end parts, the two end parts of the fuse part are respectively connected with the two end parts of the fuse 8, the two end parts of the fuse 8 are narrower than the fuse wire 81, namely, the width of the fuse wire 81 is larger than that of the two end parts of the fuse 8, the fuse wire 81 is of a spiral or multiple-bent-shaped continuous structure, namely, the fuse part is not of a linear structure, so that heat accumulation is facilitated, heat dissipation is slow, precision is high, response time is fast, and instant temperature reaches a melting point; the length (volume) can be made very small, and the use is more convenient.

The two ends of the fusing part are respectively positioned at the left and right sides of the fuse, and both ends of the fusing part are in a linear structure (see fig. 6 and 7) or in an L-shaped structure (see fig. 5).

The fusing part has various structures, the fuse 81 is an integrated structure, and the first structure of the fuse 81 is as follows: the fuse 81 is arranged in a serpentine (wave-shaped) reciprocating manner, and as the fuse 81 is formed by connecting a plurality of arc-shaped structures.

The second structure is as follows: the fuse 81 is formed by a plurality of half-square connections, see fig. 5.

The third structure is as follows: the fuse 81 is surrounded in a circular spiral manner, see fig. 6.

The fourth structure is as follows: the fuse 81 is surrounded in an elliptical spiral fashion, see figure 7,

in addition, the fuse 81 may be spirally wound in an eight-trigram spiral manner, spirally wound in a square spiral manner, or spirally wound in an arbitrary polygonal shape.

The fuse 8 has two ends, namely a first end 82 and a second end 83, the fuse has two ends, namely a third end 84 and a fourth end 85, the first end 82 is connected with the third end 84 (integral structure), and the second end 83 is connected with the fourth end 85 (integral structure).

When the fuse 81 has the first and second configurations, the width of the fourth end portion 85 is greater than the width of the second end portion 83, the width of the third end portion 84 is greater than the width of the first end portion 82, the second end portion 83, the third end portion 84, and the fourth end portion 85 are located on the same straight line, or the first end portion 82, the second end portion 83, the third end portion 84, and the fourth end portion 85 are not located on the same straight line.

When the fuse 81 has the third and fourth structures, the width of the fourth end portion 85 is smaller than the width of the second end portion 83, and the width of the third end portion 84 is smaller than the width of the first end portion 82, in this case, the first end portion 82, the second end portion 83, the third end portion 84, and the fourth end portion 85 are located on the same straight line, or the third end portion 84 and the fourth end portion 85 are not located on the same straight line, and the third end portion 84 is located below the fourth end portion 85, see fig. 5, or the third end portion 84 and the fourth end portion 85 are not located on the same straight line, and the third end portion 84 and the fourth end portion 85 are disposed opposite to each other, see fig. 7.

Preferably, the first lead and the second lead are both made of copper, the width of each fuse is smaller than that of the first lead and the second lead on the circuit board, when the battery is abnormal, the spiral or bent fuse can be fused to cut off the circuit firstly due to the fact that the spiral or bent fuse can generate a large amount of heat due to rapid accumulation at a small position when the current is too large, the whole battery management system is prevented from being damaged, and safety is guaranteed. In addition, the two ends of the first wire connected with the fuse have the same specification (the two ends of the second wire connected with the fuse have the same specification), so that the surrounding environment of the fuse is consistent, the heat dissipation is consistent, the fusing environment of the fuse is consistent, and accidental fusing damage is avoided.

The double-sided board provided with the first substrate and the second substrate can increase the number of the connected single batteries, thereby increasing the capacity; the battery signal acquisition wiring harness is prevented from being pulled due to bulging of the battery module after long-term use or under severe working condition vibration by arranging the cantilever part, the through groove and the buffer part, the signal acquisition wiring harness is prevented from being torn due to pulling, the service life is prolonged, and the reliability is enhanced; the utility model discloses a fuse on double sided board is heliciform or a plurality of crooked form, does benefit to the heat gathering, and the heat dissipation is slow, and the precision is high, and the response is fast, and the temperature reaches the melting point in the twinkling of an eye, generates heat and dispels the heat balance, and reduces the length of fuse component.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The double-sided board is characterized by comprising a flexible substrate with a U-shaped structure, wherein the flexible substrate comprises a first substrate (1), a second substrate (2) and an intermediate connecting board (3) arranged between the first substrate (1) and the second substrate (2), a plurality of cantilever parts (4) are arranged on the side edges of the first substrate (1) and the second substrate (2) along the length direction of the first substrate and the second substrate, a through groove (5) is arranged between each cantilever part (4) and the flexible substrate, and a connecting part (6) for connecting a single battery is arranged at the outer end part of each cantilever part (4);

the flexible substrate is characterized in that a plurality of first wires are arranged on the front side of the flexible substrate, a plurality of second wires are arranged on the reverse side of the flexible substrate, a plurality of via holes (7) are formed in one end of each first wire and one end of each second wire respectively, the first wires and the second wires are communicated with the via holes (7) respectively, fuses (8) are arranged on the first wires and/or the second wires, each fuse (8) comprises two end parts and a fusing part located between the two end parts, each fusing part is provided with a fuse wire (81), and each fuse wire (81) is of a spiral or a plurality of bent continuous structures.

2. Double sided board according to claim 1, characterized in that the through slots (5) are of L-shaped configuration.

3. Double sided board according to claim 1, characterized in that a temperature sensor (9) is arranged on both the first (1) and the second substrate (2).

4. The double-sided board according to claim 1, wherein an inwardly recessed buffer portion (10) is provided between the first substrate (1) and the plurality of cantilever portions (4) thereon, respectively, and an inwardly recessed buffer portion (10) is provided between the second substrate (2) and the plurality of cantilever portions (4) thereon, respectively.

5. Double sided sheet according to claim 4, wherein the cushioning part (10) is of S-shaped construction.

6. A double sided board according to claim 1, wherein the number of via holes (7) provided at one end of the first wire and one end of the second wire is five.

7. Double sided board according to claim 1, characterized in that the fuse (81) is formed by a number of half-boxes connected.

8. Double sided board according to claim 1, characterized in that the fuse wire (81) is surrounded in a circular spiral or an elliptical spiral.

9. The double sided board according to claim 1, wherein the fuse (8) has a first end (82) and a second end (83) at both ends thereof, the fuse portion has two ends, the fuse wire (81) is fixedly disposed between the two ends, the fuse portion has a third end (84) and a fourth end (85) at both ends thereof, the first end (82) is connected to the third end (84), and the second end (83) is connected to the fourth end (85).