CN214226996U

CN214226996U - Voltage signal acquisition module structure

Info

Publication number: CN214226996U
Application number: CN202120444727.4U
Authority: CN
Inventors: 李登科; 白玉龙; 朱圣法
Original assignee: Envision Power Technology Jiangsu Co Ltd; Envision Ruitai Power Technology Shanghai Co Ltd
Current assignee: Envision Power Technology Jiangsu Co Ltd; Envision Ruitai Power Technology Shanghai Co Ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-09-17
Anticipated expiration: 2031-03-01

Abstract

The utility model belongs to the technical field of the battery, a voltage signal acquisition module structure is disclosed, including electric core group and voltage acquisition subassembly, the first electric core unit and the second electric core unit of electric core group are in turn overlapped in proper order and set up, and one end of first electric core unit is provided with first positive pole ear, and the other end is provided with first negative pole ear and the signal acquisition utmost point ear of being connected with first positive pole ear; the voltage acquisition assembly comprises a plurality of busbars and an FPC module, the busbars are arranged at one ends, close to signal acquisition lugs, of first electric core units, the first electric core units are connected with second electric core units in series through the busbars, the FPC module is provided with a plurality of first voltage acquisition pieces and a plurality of second voltage acquisition pieces, each first voltage acquisition piece is connected with one busbar, and each second voltage acquisition piece is connected with one signal acquisition lug. The voltage acquisition assembly is concentrated to one end of the first battery cell unit provided with the signal acquisition lug, so that the structure of the voltage acquisition assembly is effectively simplified.

Description

Voltage signal acquisition module structure

Technical Field

The utility model relates to a battery technology field especially relates to a voltage signal gathers module structure.

Background

The power battery is used as a core part of the electric automobile, and the performance of the overall performance of the electric automobile is directly influenced by the operating state of the power battery in the using process. Therefore, during the operation of the battery, a Battery Management System (BMS) is required to monitor the voltage of the battery so as to monitor the operating state of the battery at any time.

However, most of the automobile battery modules adopt the traditional voltage signal acquisition structure to acquire data, and the structure is complex, and the problems of complex manufacture, low production efficiency, high manufacturing cost and the like exist.

Therefore, a voltage signal collection module structure is needed to solve the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a voltage signal gathers module structure, it is integrated in the one end of electric core group with the voltage acquisition subassembly, has simplified the structure of voltage acquisition subassembly, has reduced manufacturing cost.

To achieve the purpose, the utility model adopts the following technical proposal:

a voltage signal acquisition module structure comprising:

the battery pack comprises a plurality of first battery cell units and a plurality of second battery cell units, wherein the first battery cell units and the second battery cell units are sequentially and alternately stacked, the first battery cell units are connected with the second battery cell units in series, one end of each first battery cell unit is provided with a first positive electrode lug, the other end of each first battery cell unit is provided with a first negative electrode lug and a signal acquisition electrode lug, the signal acquisition electrode lug is connected with the first positive electrode lug, one end of each second battery cell unit is provided with a second positive electrode lug, and the other end of each second battery cell unit is provided with a second negative electrode lug;

the voltage acquisition assembly comprises a plurality of busbars and an FPC module, the busbars are arranged at the positions, close to the first electric core unit, of one ends of the signal acquisition lugs, the first electric core unit passes through the busbars and the second electric core units are connected in series, the FPC module is provided with a plurality of first voltage acquisition pieces and a plurality of second voltage acquisition pieces, each first voltage acquisition piece is connected with one of the busbars, and each second voltage acquisition piece is connected with one of the signal acquisition lugs.

Preferably, the voltage acquisition assembly further comprises a support plate, and the plurality of busbars are arranged on the support plate.

Preferably, the support plate is provided with a plurality of threaded positioning holes, the busbar is provided with a through hole, and a bolt penetrates through the through hole to be in threaded connection with the threaded positioning holes.

Preferably, the support plate is provided with a plurality of mounting grooves, the threaded positioning holes penetrate through the mounting grooves, and the bus bar is arranged in the mounting grooves.

Preferably, the support plate is provided with a plurality of tab through holes.

Preferably, the supporting plate is provided with a plurality of collecting lug accommodating grooves, each collecting lug accommodating groove is provided with one lug through hole, and the signal collecting lugs penetrate through the lug through holes and are arranged in the collecting lug accommodating grooves in a bending mode.

Preferably, the support plate is an insulating plate.

Preferably, the FPC module is detachably provided on the support plate.

Preferably, the signal collecting tab is arranged at one end, provided with the second negative electrode tab, of the second cell unit, and the signal collecting tab of the second cell unit is connected with the second positive electrode tab.

Preferably, the first voltage collecting piece and/or the second voltage collecting piece are/is a nickel piece.

The utility model has the advantages that: the utility model provides a voltage signal acquisition module structure is provided with signal acquisition utmost point ear through the one end that is provided with first negative pole utmost point ear at first electric core unit, and signal acquisition utmost point ear is connected with first positive pole utmost point ear, has realized concentrating voltage acquisition assembly to the one end that first electric core unit was provided with signal acquisition utmost point ear; series connection is realized through the cylinder manifold to first electric core unit and second electric core unit, the first voltage acquisition piece and the busbar of FPC module are connected, the second voltage acquisition piece is connected with signal acquisition utmost point ear, first voltage acquisition piece can realize gathering adjacent first electric core unit and the voltage of second electric core unit with the second voltage acquisition piece, the convenience of voltage signal collection has been strengthened, the structure of voltage acquisition subassembly has effectively been simplified simultaneously, the material of FPC module has been reduced, the manufacturing cost of voltage signal acquisition module structure has been reduced.

Drawings

Fig. 1 is a schematic diagram of a voltage signal acquisition module structure provided by the present invention;

fig. 2 is an exploded view of the voltage signal acquisition module structure provided by the present invention;

fig. 3 is a structural diagram of a first cell unit according to the present invention;

fig. 4 is a structural diagram of a bare cell in a first cell unit according to the present invention;

FIG. 5 is a block diagram of a support plate according to the present invention;

fig. 6 is a structural view of an FPC module in the present invention;

fig. 7 is a structural diagram of a second cell unit according to the present invention;

fig. 8 is a structural view of another first cell unit in the present invention;

fig. 9 is a structural view of another second cell unit according to the present invention.

In the figure:

100. the electric core group; 101. a first cell unit; 1011. a first positive electrode tab; 1012. a first negative electrode tab; 1013. collecting a tab by a signal; 102. a second cell unit; 1021. a second positive electrode tab; 1022. a second negative electrode tab; 200. a voltage acquisition component; 201. a bus bar; 202. an FPC module; 2021. a first voltage acquisition sheet; 2022. a second voltage acquisition sheet; 203. a support plate; 2031. mounting grooves; 2032. a tab through hole; 2033. and collecting a lug accommodating groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

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, detachably 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. 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 in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, 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.

Example one

The present embodiment provides a voltage signal collection module structure, as shown in fig. 1 to 7, including a battery core assembly 100 and a voltage collection assembly 200, where the battery core assembly 100 includes a plurality of first battery cell units 101 and a plurality of second battery cell units 102, the first battery cell units 101 and the second battery cell units 102 are sequentially and alternately stacked, and the first battery cell units 101 are connected in series with the second battery cell units 102, one end of the first battery cell unit 101 is provided with a first positive electrode tab 1011, the other end of the first battery cell unit 101 is provided with a first negative electrode tab 1012 and a signal collection tab 1013 connected to the first positive electrode tab 1011, one end of the second battery cell unit 102 is provided with a second positive electrode tab 1021, and the other end of the second battery cell unit 102 is provided with a second negative electrode tab 1022; the voltage collecting assembly 200 includes a plurality of busbars 201 and an FPC module 202, the busbars 201 are disposed at one end of the first cell unit 101 close to the first negative electrode tab 1012, the first cell unit 101 is connected to the second cell unit 102 through the busbars 201 in series, the FPC module 202 is provided with a plurality of first voltage collecting pieces 2021 and a plurality of second voltage collecting pieces 2022, each first voltage collecting piece 2021 is connected to one busbar 201, each second voltage collecting piece 2022 is connected to one signal collecting tab 1013, the voltage collecting assembly 200 is concentrated to one end of the first cell unit 101 where the signal collecting tab 1013 is disposed, and voltages of the adjacent first cell unit 101 and the adjacent second cell unit 102 can be collected through the adjacent first voltage collecting pieces 2021 and the adjacent second voltage collecting pieces 2022. First electric core unit 101 includes a plurality of naked electric cores, a plurality of naked electric core parallel connection, as shown in fig. 4, and the one end of naked electric core is provided with first positive pole utmost point ear 1011, and the other end is provided with first negative pole utmost point ear 1012 and the signal acquisition utmost point ear 1013 of being connected with first positive pole utmost point ear 1011.

Optionally, as shown in fig. 5, the voltage collecting assembly 200 in this embodiment further includes a supporting plate 203, and the plurality of bus bars 201 are disposed on the supporting plate 203 to support and fix the bus bars 201, and preferably, the plurality of return bars are uniformly disposed on the supporting plate 203 along the transverse direction.

The supporting plate 203 in this embodiment is provided with a plurality of threaded positioning holes, the bus bar 201 is provided with a through hole, and the bolt passes through the through hole on the bus bar 201 and is in threaded connection with the threaded positioning hole, so that the bus bar 201 is fixed on the supporting plate 203, and when any one of the bus bars 201 is damaged, the damaged bus bar 201 can be replaced, so that the operation is convenient, and the time and labor are saved.

Optionally, a plurality of mounting grooves 2031 are provided on the supporting plate 203, the thread positioning holes are provided in the mounting grooves 2031, the bus bar 201 is provided in the mounting grooves 2031, preferably, the depth of the mounting grooves 2031 is the same as the thickness of the bus bar 201, the number of the thread positioning holes in the mounting grooves 2031 is not limited, and the thread positioning holes are uniformly distributed in the mounting grooves 2031, at this time, the bus bar 201 is more stable in the mounting grooves 2031.

The supporting plate 203 in this embodiment is further provided with a plurality of tab through holes 2032, and as a preferred technical solution, the tab through holes 2032 are disposed on two sides of the mounting groove 2031, so as to better implement the series connection between the first electric core unit 101 and the second electric core unit 102 through the bus bar. Be provided with a plurality of collection utmost point ear storage tank 2033 on the backup pad 203, each collection utmost point ear storage tank 2033 is provided with an utmost point ear through-hole 2032, signal acquisition utmost point ear 1013 passes the utmost point ear through-hole 2032 that sets up at collection utmost point ear storage tank 2033 and buckles and set up in gathering utmost point ear storage tank 2033, the realization is to the holding of signal acquisition utmost point ear 1013, buckle the signal acquisition utmost point ear 1013 that sets up in gathering utmost point ear storage tank 2033 simultaneously and can play the position to backup pad 203 and prescribe a limit to the effect again, the stability of reinforcing voltage signal collection module structure. Optionally, the supporting plate 203 is an insulating plate to prevent the first cell unit 101 and the second cell unit 102 from being short-circuited, so as to avoid danger.

The FPC module 202 in this embodiment is detachably disposed on the supporting plate 203, so that the FPC module 202 can be conveniently mounted on the supporting plate, and on the other hand, when the FPC module 202 fails, the FPC module 202 can be replaced, and the maintenance efficiency of the voltage acquisition assembly 200 is improved.

Optionally, the first voltage collecting tab 2021 or the second voltage collecting tab 2022 in the FPC module 202 is a nickel tab, or both the first voltage collecting tab 2021 and the second voltage collecting tab 2022 are nickel tabs, and the nickel tab has good plasticity, corrosion resistance and ductility.

As shown in fig. 7, the end of the second cell unit 102 provided with the second negative tab 1022 in this embodiment may also be provided with a signal collecting tab 1013, and the signal collecting tab 1013 on the second cell unit 102 is connected with the second positive tab 1021 of the second cell unit 102, in this case, the voltage collecting assembly 200 may be disposed at the end of the first cell unit 101 provided with the first negative tab 1012 or at the end of the second cell unit 102 provided with the second negative tab 1022, which can better adapt to different installation environments.

The voltage signal acquisition module structure that this embodiment provided is when using, the voltage acquisition subassembly 200 has concentrated the one end that first electric core unit 101 was provided with signal acquisition utmost point ear 1013, can realize gathering the voltage of adjacent first electric core unit 101 and second electric core unit 102 through adjacent first voltage acquisition piece 2021 and second voltage acquisition piece 2022, the convenience of voltage signal acquisition has been strengthened, the structure of voltage acquisition subassembly 200 has effectively been simplified simultaneously, the material of FPC module 202 has been reduced, the manufacturing cost of voltage signal acquisition module structure has been reduced.

Example two

The present embodiment further provides a voltage collecting module structure, which is different from the first embodiment in a setting position of a signal collecting tab 1013 in the first battery cell unit 101, as shown in fig. 8, the signal collecting tab 1013 in the first battery cell unit 101 in the present embodiment is set at one end of the first battery cell unit 101, where the first positive tab 1011 is disposed, and the signal collecting tab 1013 is connected to the first negative tab 1012.

Alternatively, as shown in fig. 9, the end of the second cell unit 102 provided with the second positive tab 1021 in the present embodiment may also be provided with a signal collecting tab 1013, and the signal collecting tab 1013 on the second cell unit 102 is connected with the second negative tab 1022 of the second cell unit 102, in this case, the voltage collecting assembly 200 may be disposed at the end of the first cell unit 101 provided with the first negative tab 1012 or at the end of the second cell unit 102 provided with the second negative tab 1022, which can better adapt to different installation environments.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a voltage signal gathers module structure which characterized in that includes:

the battery core group (100) comprises a plurality of first battery cell units (101) and a plurality of second battery cell units (102), wherein the first battery cell units (101) and the second battery cell units (102) are sequentially and alternately stacked, the first battery cell units (101) are connected with the second battery cell units (102) in series, one end of each first battery cell unit (101) is provided with a first positive pole lug (1011), the other end of each first battery cell unit is provided with a first negative pole lug (1012) and a signal acquisition pole lug (1013), the signal acquisition pole lug (1013) is connected with the first positive pole lug (1011), one end of each second battery cell unit (102) is provided with a second positive pole lug (1021), and the other end of each second battery cell unit (102) is provided with a second negative pole lug (1022);

the voltage acquisition assembly (200), the voltage acquisition assembly (200) includes a plurality of busbars (201) and FPC module (202), busbar (201) sets up first electric core unit (101) are close to the one end of signal acquisition utmost point ear (1013), first electric core unit (101) pass through busbar (201) with second electric core unit (102) series connection, FPC module (202) is provided with a plurality of first voltage acquisition pieces (2021) and a plurality of second voltage acquisition pieces (2022), every first voltage acquisition piece (2021) with one busbar (201) is connected, every second voltage acquisition piece (2022) with one signal acquisition utmost point ear (1013) are connected.

2. The voltage signal acquisition module arrangement according to claim 1, wherein the voltage acquisition assembly (200) further comprises a support plate (203), and wherein a plurality of busbars (201) are arranged on the support plate (203).

3. The voltage signal collection module structure according to claim 2, wherein the support plate (203) is provided with a plurality of threaded positioning holes, and the bus bar (201) is provided with through holes through which bolts are threaded into the threaded positioning holes.

4. The voltage signal collection module structure according to claim 3, wherein the support plate (203) is provided with a plurality of mounting grooves (2031), the threaded positioning holes are arranged in the mounting grooves (2031) in a penetrating manner, and the bus bar (201) is arranged in the mounting grooves (2031).

5. The voltage signal acquisition module arrangement according to claim 2, characterized in that the support plate (203) is provided with a number of tab through holes (2032).

6. The voltage signal collection module structure according to claim 5, wherein the supporting plate (203) is provided with a plurality of collection tab receiving grooves (2033), each collection tab receiving groove (2033) is provided with one tab through hole (2032), and the signal collection tab (1013) passes through the tab through hole (2032) and is bent and arranged in the collection tab receiving groove (2033).

7. The voltage signal acquisition module structure according to claim 2, characterized in that the support plate (203) is an insulating plate.

8. The voltage signal collection module structure according to claim 7, wherein the FPC module (202) is detachably disposed on the support plate (203).

9. The voltage signal collection module structure according to any one of claims 1 to 8, wherein the signal collection tab (1013) is provided at one end of the second cell unit (102) where the second negative tab (1022) is provided, and the signal collection tab (1013) of the second cell unit (102) is connected with the second positive tab (1021).

10. The voltage signal acquisition module structure according to any one of claims 1 to 8, wherein the first voltage acquisition tab (2021) and/or the second voltage acquisition tab (2022) is a nickel tab.