CN215955359U

CN215955359U - Module sampling assembly and power battery

Info

Publication number: CN215955359U
Application number: CN202122381550.0U
Authority: CN
Inventors: 曹胜捷; 宋海阳
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-03-04
Anticipated expiration: 2031-09-29

Abstract

The utility model relates to the technical field of power batteries, in particular to a module sampling assembly and a power battery. The module sampling assembly is connected with the battery module so that the module sampling assembly can collect electrical signals in the battery module. The module sampling assembly mainly comprises: the fuse comprises a body, a fuse box, a first nickel sheet and a second nickel sheet. Wherein, a plurality of gaps are arranged on two sides of the body, and a connecting part is arranged at each gap; a fuse is arranged in the fuse box; one end of the first nickel sheet is connected with the connecting part, and the other end of the first nickel sheet is connected with the fuse; one end of the second nickel plate is connected with the fuse, and the other end of the second nickel plate is connected with the busbar; when the current on the first nickel sheet and the second nickel sheet exceeds a preset current value, the fuse can be automatically disconnected. The module sampling assembly is simple in structure and convenient to detach, cost can be saved, and working efficiency is improved. The power battery is simple in structure, capable of improving the working efficiency of a user, and capable of improving the flexibility and universality of the power battery.

Description

Module sampling assembly and power battery

Technical Field

The utility model relates to the technical field of power batteries, in particular to a module sampling assembly and a power battery.

Background

With the economic discovery and the technological progress, the energy is more and more valued by people, and the power battery is popular to consumers as one of the cleanest and most efficient energy.

At present, a module sampling assembly in a power battery mainly comprises an FPC (flexible printed circuit), a nickel sheet, a bus bar, a reinforcing plate and a connector. The module sampling assembly comprises a bus bar, a nickel sheet, a copper substrate and a fuse, wherein the nickel sheet is welded with the bus bar, then the other end of the nickel sheet is welded with the copper substrate inside the FPC, and the fuse is arranged on an internal circuit of the FPC and used for protecting a circuit of the module sampling assembly. The connector and the circuit inside the FPC are connected together through welding and fixed on the reinforcing plate, and the reinforcing plate can fix the connector.

When a short circuit occurs inside a connector of the module sampling assembly, a fuse inside the FPC is burnt, so that the FPC is damaged and cannot be used again, the whole module sampling assembly needs to be replaced, the cost is increased, and the working efficiency is reduced; meanwhile, when other problems exist in the module sampling assembly and need to be checked, a user needs to cut off the nickel sheet on the module sampling assembly from the busbar and then weld a section of nickel sheet on the FPC again, so that secondary damage to the FPC is possibly caused, the operation difficulty of the user is increased, and the working efficiency is reduced.

Therefore, it is desirable to design a module sampling assembly and a power battery to solve the above technical problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a module sampling assembly which is simple in structure and convenient to disassemble, when a short circuit occurs in an internal circuit of the module sampling assembly, only a safety device needs to be replaced, and an FPC (flexible printed circuit) and a nickel sheet do not need to be replaced, so that the cost is saved, and the working efficiency is improved.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a module sampling assembly, which comprises:

the connecting piece comprises a body, wherein a plurality of notches are formed in two sides of the body, and a connecting part is arranged at each notch;

the fuse box is internally provided with a fuse;

one end of the first nickel sheet is connected with the connecting part, and the other end of the first nickel sheet is connected with the fuse;

one end of the second nickel sheet is connected with the fuse, and the other end of the second nickel sheet is connected with the busbar; when the current on the first nickel sheet and the second nickel sheet exceeds a preset current value, the fuse can be automatically disconnected.

As an alternative, the fuse box comprises two bosses, two of the bosses are arranged on two sides of the fuse, and the two bosses are respectively configured to connect the first nickel plate and the second nickel plate.

As an alternative, the boss includes a stepped portion, and the stepped portion is connected to the first nickel plate or the second nickel plate.

As an alternative, the fuse box further comprises an upper cover and a lower cover, the upper cover and the lower cover are buckled and connected to form an accommodating cavity, and the fuse is arranged in the accommodating cavity.

As an alternative, the lower cover is provided with barbs, the first nickel sheet and the second nickel sheet are both provided with bulges, the barbs can abut against the bulges to limit the displacement of the first nickel sheet and the second nickel sheet.

As an alternative, the lower cover comprises a side plate, and the barbs are convexly arranged on the inner wall of the side plate.

As an alternative, the curb plate includes the bar hole, the upper cover is provided with joint portion, joint portion can with the bar hole joint is connected.

As an alternative, the body is further provided with a plurality of positioning holes.

As an alternative, the module sampling assembly comprises a reinforcing plate and a module sampling connector, the reinforcing plate is connected with the body, and the module sampling connector is arranged on one side, away from the body, of the reinforcing plate.

Another objective of the present invention is to provide a power battery, which is cost-saving and improves the flexibility and universality of the power battery. In order to achieve the purpose, the utility model adopts the following technical scheme:

in a second aspect, the utility model provides a power battery, which includes the module sampling assembly as described above.

The utility model has the beneficial effects that:

the module sampling assembly provided by the utility model has a simple structure, is convenient to disassemble, and is welded on the first nickel plate and the second nickel plate respectively through the fuse, so that when the current flowing through the fuse exceeds a preset current value, the fuse can be automatically disconnected, a certain protection effect is further realized on the body, and the body is prevented from being burnt or damaged. And then make the user only need change the fuse box can, need not to change the body, practice thrift the cost, improve work efficiency. Meanwhile, the user can meet the applicability of the body to different current values by selecting fuse boxes with different specifications, and the flexibility and universality of the module sampling assembly are further improved.

The power battery provided by the utility model has a simple structure, can improve the working efficiency of a user, and can improve the flexibility and universality of the power battery.

Drawings

Fig. 1 is a schematic structural diagram of a module sampling assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a main body and a reinforcing plate according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first nickel plate, a second nickel plate, a fuse box and a bus bar according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fuse box according to an embodiment of the present invention.

Reference numerals:

1. a body; 11. a connecting portion; 12. positioning holes;

2. a fuse box; 21. a fuse; 22. a boss; 221. a step portion; 23. an upper cover; 231. a clamping part; 24. a lower cover; 25. a side plate; 251. a barb; 252. a strip-shaped hole;

3. a first nickel plate; 4. a second nickel plate; 5. a reinforcing plate; 6. a module sampling connector; 7. a temperature sampling module; 8. a bus bar.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

In order to solve the technical problem that when a module sampling assembly in the prior art is short-circuited, the whole FPC (flexible printed circuit) needs to be replaced, as shown in fig. 1 to 3, this embodiment provides a module sampling assembly, which is connected to a battery module so that the module sampling assembly can collect electrical signals in the battery module. The module sampling assembly mainly comprises: the fuse box comprises a body 1, a fuse box 2, a first nickel sheet 3 and a second nickel sheet 4. Wherein, a plurality of gaps are arranged on two sides of the body 1, and a connecting part 11 is arranged at each gap; a fuse 21 is arranged in the fuse box 2; one end of the first nickel sheet 3 is connected with the connecting part 11, and the other end is connected with the fuse 21; one end of the second nickel sheet 4 is connected with the fuse 21, and the other end is connected with the bus bar 8; when the current on the first nickel sheet 3 and the second nickel sheet 4 exceeds a preset current value, the fuse 21 can be automatically opened.

Further, the body 1 in this embodiment selects an FPC (FPC, flexible printed circuit) made of a polyimide substrate, and the body 1 includes a plurality of connecting portions 11, each connecting portion 11 is connected to the first nickel plate 3, and the body 1 is provided with a copper foil conductor inside, and of course, users can set other conductors such as an aluminum foil and a silver foil according to actual needs except for the copper foil conductor, and details are not repeated here. Including a plurality of fuse boxes 2 in this embodiment, and every fuse box 2 all can be connected with connecting portion 11 on the body 1 through first nickel piece 3, and second nickel piece 4 is connected with busbar 8 on the battery module, just so constituted closed circuit, electric current in the battery module can flow into body 1 through busbar 8, when the inside electric current of body 1 is too big, fuse 21 in fuse box 2 can automatic disconnection, and then can protect body 1, avoid body 1 to burn out because the electric current is too big, and the cost is saved, and the work efficiency is improved. The fuse 21 in the fuse box 2 in this embodiment can be replaced by a fuse patch or other fuse media, as long as it can be ensured that the fuse media can be disconnected under a certain current, so as to achieve the effect of protecting the body 1.

Further, the user can replace the first nickel plate 3 and the second nickel plate 4 with other electric conductors according to actual needs, such as a first copper plate, a second copper plate, and so on. As long as it can ensure that current can flow through the fuse 21. Preferably, the connection part 11 in this embodiment is welded to the first nickel plate 3, so that when the battery module normally operates, the connection part 11 can buffer and absorb the expansion force of the battery module, thereby avoiding the extrusion deformation of the battery module to the body 1 and prolonging the service life of the body 1.

Compared with the prior art, the module sampling assembly that provides in this embodiment, simple structure, convenient to detach welds in first nickel piece 3 and second nickel piece 4 respectively through fuse 21, and when the electric current that flows through in the fuse 21 exceeded and predetermine the current value like this, fuse 21 can the automatic disconnection, and then plays certain guard action to body 1, avoids body 1 to take place to burn out or damage. And then make the user only need change fuse box 2 can, need not to change body 1, practice thrift the cost, improve work efficiency. Meanwhile, the user can meet the applicability of the body 1 to different current values by selecting the fuse boxes 2 with different specifications, and the flexibility and universality of the module sampling assembly are further improved.

Preferably, as shown in fig. 3 and 4, in the present embodiment, the fuse box 2 includes two bosses 22, the two bosses 22 are disposed at both sides of the fuse 21, and the two bosses 22 are respectively configured to connect the first nickel plate 3 and the second nickel plate 4. Two bosss 22 adopt electrically conductive material to make, and two bosss 22 and fuse 21 welded connection, and two bosss 22 can improve the steadiness that first nickel piece 3, second nickel piece 4 are connected with fuse box 2.

Further, two bosss 22 all include step portion 221, first nickel piece 3 and second nickel piece 4 can weld respectively on step portion 221 like this, step portion 221 can increase first nickel piece 3, the area of contact of second nickel piece 4 and boss 22, and then improve first nickel piece 3, the stability and the reliability of second nickel piece 4 and fuse box 2, avoid the module sampling assembly in normal work, first nickel piece 3, the risk that second nickel piece 4 and fuse box 2 take place to break away from.

Preferably, as shown in fig. 4, in the present embodiment, the fuse box 2 further includes an upper cover 23 and a lower cover 24, the upper cover 23 is connected with the lower cover 24 in a snap-fit manner to form an accommodating cavity, and the fuse 21 is disposed in the accommodating cavity. The holding cavity can play certain guard action to fuse 21 like this, avoids fuse 21 to receive the impact of external force and damage, also can avoid outside steam or other impurity to get into fuse box 2 inside, influences fuse 21's normal work.

Preferably, with continuing reference to fig. 4, in the present embodiment, the lower cover 24 is provided with barbs 251, and the first nickel plate 3 and the second nickel plate 4 are provided with protrusions, and the barbs 251 can abut against the protrusions to limit the displacement of the first nickel plate 3 and the second nickel plate 4. Can produce certain vibration when module sampling assembly normal work, and then can lead to first nickel piece 3 and second nickel piece 4 to move along body 1's width direction, barb 251 can with the bulge butt on first nickel piece 3 and the second nickel piece 4 like this to play certain limiting displacement to first nickel piece 3 and second nickel piece 4, avoid first nickel piece 3 and second nickel piece 4 to take place the displacement along body 1's width direction. In order to reduce the current loss, the barbs 251 are made of an insulating material.

Preferably, with continued reference to fig. 4, the lower cover 24 includes a side plate 25, and the barbs 251 are convexly disposed on the inner wall of the side plate 25, so as to reduce the thickness of the fuse box 2, further reduce the volume of the fuse box 2, and facilitate the snap-fit connection between the upper cover 23 and the lower cover 24. The user only needs to put into fuse box 2 respectively first nickel piece 3 and second nickel piece 4 along the thickness direction of fuse box 2 when installing first nickel piece 3 and second nickel piece 4, and barb 251 on bulge and the curb plate 25 carries out the butt this moment to carry on spacingly to first nickel piece 3 and second nickel piece 4. Further, curb plate 25 in this embodiment sets up to two, and two curb plates 25 set up on the bottom plate symmetrically, barb 251 in this embodiment sets up to four, and sets up two barbs 251 on every curb plate 25, is favorable to balancing the atress of first nickel piece 3 and second nickel piece 4 like this, avoids stress concentration, and then makes first nickel piece 3 and second nickel piece 4 when receiving external force, and first nickel piece 3 and second nickel piece 4 can keep relatively stable.

Preferably, with continuing reference to fig. 4, in the present embodiment, the side plate 25 includes a strip-shaped hole 252, the upper cover 23 is provided with a clamping portion 231, and the clamping portion 231 can be clamped and connected with the strip-shaped hole 252. This is advantageous in improving the stability and reliability of the fuse block 2. Of course, the user can also set a through hole with other shapes such as a circle, a square, etc. to be connected with the clamping portion 231 in a clamping manner, which is not described herein again. In order to ensure the safety of users and prevent electric shock hazard, the upper cover 23 and the lower cover 24 are made of insulating materials.

Preferably, as shown in fig. 1 and 2, in the present embodiment, the body 1 further has a plurality of positioning holes 12. The user can pass the screw locating hole 12, and then makes body 1 fix on battery module, and locating hole 12 can prevent that body 1 from taking place to slide and causing body 1 to damage relative battery module to make locating hole 12 can improve body 1's reliability, prolong body 1's life.

Preferably, as shown in fig. 1 and fig. 2, the module sampling assembly provided in this embodiment further includes a reinforcing plate 5 and a module sampling connector 6, the reinforcing plate 5 is connected to the body 1, and the module sampling connector 6 is disposed on a side of the reinforcing plate 5 away from the body 1. The reinforcing plate 5 can strengthen the strength of the module sampling connector 6, and the module sampling connector 6 is connected with an external electronic element so as to transmit the collected electric signal to the external electronic element. Still be provided with temperature sampling module 7 on the body 1, this temperature sampling module 7 can gather and detect the temperature signal on the body 1 in real time, and temperature sampling module 7 is connected with external temperature display to on feeding back the temperature signal of body 1 to external display.

The utility model provides a power battery, which comprises the module sampling assembly. In this embodiment, all be provided with module sampling assembly on every power battery, module sampling assembly can gather and monitor every power battery's the signal of telecommunication in real time like this, and when a certain power battery broke down, module sampling assembly can be timely accurately with signal of telecommunication feedback to external electronic component on, and then improves work efficiency, practices thrift the cost. The user can configure fuses 21 with different specifications for each power battery according to actual conditions, so that the flexibility and universality of the use of the power batteries are improved.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A module sampling assembly, the module sampling assembly comprising:

the device comprises a body (1), wherein a plurality of notches are formed in two sides of the body (1), and a connecting part (11) is arranged at each notch;

the fuse box (2), wherein a fuse (21) is arranged in the fuse box (2);

one end of the first nickel sheet (3) is connected with the connecting part (11), and the other end of the first nickel sheet (3) is connected with the fuse (21);

one end of the second nickel sheet (4) is connected with the fuse (21), and the other end of the second nickel sheet (4) is connected with the busbar (8); when the current on the first nickel sheet (3) and the second nickel sheet (4) exceeds a preset current value, the fuse (21) can be automatically disconnected.

2. The modular sampling assembly according to claim 1, characterized in that the fuse box (2) comprises two bosses (22), the two bosses (22) being arranged on either side of the fuse (21), the two bosses (22) being configured to connect the first nickel plate (3) and the second nickel plate (4), respectively.

3. The modular sampling assembly according to claim 2, wherein the boss (22) comprises a step (221), the step (221) being connected to the first nickel plate (3) or the second nickel plate (4).

4. The modular sampling assembly according to claim 1, wherein the fuse box (2) further comprises an upper cover (23) and a lower cover (24), the upper cover (23) and the lower cover (24) are snap-fit connected to form a receiving cavity, and the fuse (21) is disposed in the receiving cavity.

5. Module sampling assembly according to claim 4, wherein the lower cover (24) is provided with barbs (251), the first (3) and the second (4) nickel plate each being provided with a projection, the barbs (251) being able to abut with the projections to limit the displacement of the first (3) and the second (4) nickel plate.

6. The modular sampling assembly of claim 5, wherein the lower cover (24) comprises a side plate (25), and the barb (251) is provided protruding on an inner wall of the side plate (25).

7. The module sampling assembly of claim 6, wherein the side plate (25) comprises a strip-shaped hole (252), the upper cover (23) is provided with a clamping portion (231), and the clamping portion (231) can be connected with the strip-shaped hole (252) in a clamping manner.

8. The modular sampling assembly according to claim 1, characterized in that said body (1) further defines a plurality of positioning holes (12).

9. The modular sampling assembly of claim 1, comprising a stiffener (5) and a modular sampling connector (6), the stiffener (5) being connected with the body (1) and the modular sampling connector (6) being disposed on a side of the stiffener (5) remote from the body (1).

10. A power cell comprising a modular sampling assembly according to any of claims 1-9.