CN115032550A - Module voltage acquisition system and battery module - Google Patents

Module voltage acquisition system and battery module Download PDF

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Publication number
CN115032550A
CN115032550A CN202210625672.6A CN202210625672A CN115032550A CN 115032550 A CN115032550 A CN 115032550A CN 202210625672 A CN202210625672 A CN 202210625672A CN 115032550 A CN115032550 A CN 115032550A
Authority
CN
China
Prior art keywords
sampling terminal
voltage acquisition
acquisition system
module
module voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210625672.6A
Other languages
Chinese (zh)
Inventor
朱圣法
杨文兵
白玉龙
付方凯
何亚飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Envision Power Technology Jiangsu Co Ltd
Envision Ruitai Power Technology Shanghai Co Ltd
Original Assignee
Envision Power Technology Jiangsu Co Ltd
Envision Ruitai Power Technology Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Envision Power Technology Jiangsu Co Ltd, Envision Ruitai Power Technology Shanghai Co Ltd filed Critical Envision Power Technology Jiangsu Co Ltd
Priority to CN202210625672.6A priority Critical patent/CN115032550A/en
Publication of CN115032550A publication Critical patent/CN115032550A/en
Priority to PCT/CN2023/097353 priority patent/WO2023232060A1/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0416—Connectors, terminals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention relates to the technical field of battery manufacturing, in particular to a module voltage acquisition system and a battery module. This module voltage acquisition system includes: bracket component, pencil subassembly and connector. Wherein, seted up on the bracket component and dodged logical groove, utmost point ear sets up dodging logical inslot, has seted up the slot on the bracket component, and the pencil subassembly includes sampling terminal and the wire of being connected with sampling terminal, and sampling terminal includes welding part and kink, and welding part and utmost point ear welded connection, the kink is pegged graft in the slot, and the connector passes through the wire and is connected with sampling terminal to make voltage signal can be gathered by the connector after the wire through sampling terminal. The module voltage acquisition system is simple in structure, can improve the stability and reliability of the sampling terminal in the wiring harness assembly, improves the accuracy of voltage signal acquisition of the sampling terminal, and can also improve the processing and assembling efficiency of the battery module.

Description

Module voltage acquisition system and battery module
Technical Field
The invention relates to the technical field of battery manufacturing, in particular to a module voltage acquisition system and a battery module.
Background
In the prior art, the voltage signal of the battery is collected through a wire harness, and then the voltage signal is conducted to an external connector for display. However, the wire harness in the related art has the following disadvantages:
(1) the connection between the terminal for collecting the voltage signal and the tab is unstable, and the risk that the terminal is loosened and even slides easily occurs, so that the phenomenon that the voltage signal collected by the terminal is unstable is caused;
(2) the terminal among the prior art can't realize nimble removal before welding with utmost point ear, has improved welding set like this undoubtedly to the welded required precision of terminal, is unfavorable for the automated welding of terminal, reduces welding efficiency.
Therefore, it is desirable to design a module voltage collecting system and a battery module to solve the above technical problems.
Disclosure of Invention
The first purpose of the invention is to provide a module voltage acquisition system which is simple in structure, and can improve the stability and reliability of a sampling terminal in a wire harness assembly and improve the accuracy of voltage signal acquisition of the sampling terminal.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a module voltage acquisition system, comprising:
the lug pole support comprises a support component, wherein the support component is provided with an avoidance through groove, the lug pole is arranged in the avoidance through groove, and the support component is provided with a slot;
the wire harness assembly comprises a sampling terminal and a lead connected with the sampling terminal, the sampling terminal comprises a welding part and a bending part, the welding part is welded with the lug, and the bending part is inserted in the slot;
the connector is connected with the sampling terminal through the lead, so that a voltage signal can pass through the sampling terminal and be collected by the connector after passing through the lead.
As an optional technical scheme of the module voltage acquisition system, the welding part and the bent part form a preset angle a, and the range of the preset angle a is more than 0 degrees and less than a and less than 180 degrees.
As an optional technical scheme of the module voltage acquisition system, a protruding portion is convexly arranged on the side wall of the slot, and the protruding portion can abut against the bent portion.
As an optional technical solution of the module voltage acquisition system, a limiting portion extends from the sampling terminal, a limiting groove is disposed on the bracket assembly, and the limiting portion is disposed in the limiting groove.
As an optional technical scheme of the module voltage acquisition system, a limiting column is arranged on the bracket assembly, a through hole is formed in the sampling terminal, and the limiting column penetrates through the through hole;
the limiting column comprises a column body and a column head connected with the column body, the projection area of the column head is larger than that of the through hole along the height direction of the column body, and the projection area of the through hole is larger than that of the column body.
As an optional technical scheme of module voltage acquisition system, be provided with the arc connecting portion on the weld part, a plurality of bar hole has been seted up on the arc connecting portion, the arc connecting portion are configured to absorb the inflation volume of utmost point ear.
As an optional technical scheme of the module voltage acquisition system, a wire slot is formed in the support assembly, and the wire is embedded in the wire slot.
As an optional technical scheme of the module voltage acquisition system, a buckle is arranged on the support component and used for clamping and fixing the lead.
As an optional technical scheme of the module voltage acquisition system, the bracket component is made of hard plastics, and the sampling terminal is made of metal materials.
The second purpose of the present invention is to provide a battery module, which has a simple structure and high reliability and stability, and can achieve the purpose of accurately acquiring a voltage signal of a cell body, and simultaneously improve the processing and assembling efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a battery module which comprises two module voltage acquisition systems, a cell body and a shell, wherein the shell is provided with two openings, the two module voltage acquisition systems are respectively arranged at the two openings, the two end parts of the cell body respectively face the two openings, the two end parts of the cell body are respectively provided with a lug, the module voltage acquisition systems are connected with the lugs, and the module voltage acquisition systems are the above module voltage acquisition systems.
The invention has the beneficial effects that:
the invention provides a module voltage acquisition system, which comprises: bracket component, pencil subassembly and connector. Wherein, seted up on the bracket component and dodged logical groove, utmost point ear sets up dodging logical inslot, has seted up the slot on the bracket component, and the pencil subassembly includes sampling terminal and the wire of being connected with sampling terminal, and sampling terminal includes welding part and kink, and welding part and utmost point ear welded connection, the kink is pegged graft in the slot, and the connector passes through the wire and is connected with sampling terminal to make voltage signal can be gathered by the connector after the wire through sampling terminal. When the module voltage acquisition system is installed, an operator can insert the bent part into the slot, and the welding part is abutted and contacted with the surface of the lug. The slot can play fixed spacing effect to the kink, avoids at the welded in-process of the weld part of sampling terminal, and the phenomenon of landing appears in the sampling terminal, and then is favorable to weld part and utmost point ear to weld, improves the stability and the reliability of sampling terminal. Alternatively, the welding part and the tab may be welded by laser welding.
The invention also provides a battery module which comprises the module voltage acquisition system, has a simple structure and high reliability and stability, can realize the purpose of accurately acquiring the voltage signal of the battery core body, and can improve the processing and assembling efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings may be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present invention;
fig. 2 is an exploded view of a battery module according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a bracket assembly and a wire harness assembly provided in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a structural schematic view from another perspective of a bracket assembly and a wire harness assembly provided in accordance with an embodiment of the present invention;
FIG. 6 is a partial enlarged view of FIG. 5 at B;
fig. 7 is a front view of a wire harness assembly mounted on a bracket assembly according to an embodiment of the present invention.
Reference numerals
100. A cell body; 110. a tab;
200. a bracket assembly; 210. avoiding the through groove; 220. a slot; 2201. a boss portion; 230. a limiting column; 2301. a cylinder; 2302. a column cap; 240. a wire slot; 250. buckling; 260. binding bands; 270. a limiting groove;
300. a wire harness assembly; 310. a sampling terminal; 3101. welding the part; 3102. a bending section; 3103. a limiting part; 3104. a through hole; 3105. welding seams; 320. a connector; 330. a wire;
400. a housing; 410. an upper cover; 420. a base plate; 430. a first side plate; 440. a second side plate.
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 otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. 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 be limiting.
As shown in fig. 1 to 4, the present embodiment provides a module voltage collecting system, which is installed at an end portion of a cell body 100, a tab 110 is disposed at the end portion of the cell body 100, and the voltage collecting system is welded to the tab 110. This module voltage acquisition system includes: bracket assembly 200, wire harness assembly 300, and connector 320. The bracket assembly 200 is provided with an avoiding through groove 210, the tab 110 is arranged in the avoiding through groove 210, the bracket assembly 200 is provided with a slot 220, the wire harness assembly 300 comprises a sampling terminal 310 and a wire 330 connected with the sampling terminal 310, the sampling terminal 310 comprises a welding part 3101 and a bending part 3102, the welding part 3101 is welded with the tab 110, the bending part 3102 is inserted into the slot 220, and the connector 320 is connected with the sampling terminal 310 through the wire 330, so that a voltage signal can be collected by the connector 320 through the sampling terminal 310 after passing through the wire 330.
Alternatively, in the present embodiment, the bracket assembly 200 is made of rigid plastic, such as PVC (polyvinyl chloride), PPS (polyphenylene sulfide), PE (polyethylene), and the like. The sampling terminal 310 is made of a metal material, for example, the sampling terminal 310 may be made of a metal material such as copper, aluminum, iron, and the like, and in principle, any metal material capable of realizing conductivity may be used as a material for making the sampling terminal 310, which is not further limited in this embodiment.
Based on the above design, when the module voltage collecting system is installed, the worker can insert the bent portion 3102 into the insertion groove 220, and abut and contact the welding portion 3101 with the surface of the tab 110. The slot 220 can fix and limit the bending portion 3102, so that the phenomenon that the sampling terminal 310 slides down in the welding process of the welding portion 3101 of the sampling terminal 310 is avoided, the welding portion 3101 is welded with the tab 110, and the stability and reliability of the sampling terminal 310 are improved. Alternatively, the welding portion 3101 and the tab 110 may be welded by laser welding, and fig. 4 shows a welding seam 3105 produced by laser welding.
Illustratively, the welded portion 3101 and the bent portion 3102 form a preset angle a in the range of 0 ° < a < 180 °. That is, the preset angle a may be set to be 10 °, 45 °, 90 °, 150 ° or the like, and the operator may flexibly adjust the value of the preset angle a between the welding portion 3101 and the bending portion 3102 according to actual requirements, which is not limited in this embodiment. As shown in fig. 3 to 4, in this embodiment, the preset angle may be set to 90 °, which is not only convenient for an operator to insert the bending portion 3102 into the slot 220, but also beneficial to make the stress on both sides of the bending portion 3102 uniform, and improving the stability and reliability of the insertion of the sampling terminal 310 into the slot 220.
Further, as shown in fig. 5 to 6, in the present embodiment, a protruding portion 2201 is convexly disposed on a sidewall of the slot 220, the protruding portion 2201 can abut against the bending portion 3102, and a skid-proof pattern is disposed on the protruding portion 2201 to increase a friction force between the bending portion 3102 and the protruding portion 2201, so as to further improve the stability of the insertion between the slot 220 and the bending portion 3102.
As shown in fig. 4 and 6, in the present embodiment, a limiting portion 3103 extends from the sampling terminal 310, a limiting groove 270 is formed on the rack assembly 200, and the limiting portion 3103 is disposed in the limiting groove 270. The limiting portion 3103 and the limiting groove 270 are cooperatively arranged, so that the sampling terminal 310 can be prevented from rotating in the process of welding with the tab 110, the stability of the sampling terminal 310 is improved, and poor welding is avoided.
As shown in fig. 5-6, in the present embodiment, the bracket assembly 200 is provided with a limiting post 230, the sampling terminal 310 is provided with a through hole 3104, and the limiting post 230 is inserted into the through hole 3104. Specifically, spacing post 230 includes cylinder 2301 and the column cap 2302 of being connected with cylinder 2301, along cylinder 2301's direction of height, the projected area of column cap 2302 is greater than the projected area of through-hole 3104, the projected area of through-hole 3104 is greater than the projected area of cylinder 2301, not only can make through-hole 3104 on the sampling terminal 310 pass cylinder 2301 like this, and sampling terminal 310 can move about along the direction of cylinder 2301 height, the flexibility and the convenience of sampling terminal 310 installation have been improved, the required precision of welding set to sampling terminal 310 welding has also been reduced simultaneously, be favorable to the automated welding of sampling terminal 310, promote welding efficiency.
Alternatively, in the present embodiment, an arc connection portion (not shown) configured to absorb an expansion amount of the tab 110 is provided on the welding portion 3101. Further, a plurality of bar-shaped holes are formed in the arc-shaped connecting portion, so that the arc-shaped connecting portion is in a comb tooth shape, and the arc-shaped connecting portion is favorable for deforming to absorb the expansion amount of the tab 110 when the tab 110 expands. End connection of utmost point ear 110 and electric core body 100, when electric core body 100 takes place thermal expansion deformation, utmost point ear 110 also can take place the deformation of certain degree, however this embodiment is through setting up the arc connecting portion on the weld part 3101 at sampling terminal 310, makes the arc connecting portion can absorb utmost point ear 110 inflation volume like this, and then avoids when utmost point ear 110 takes place the expansion deformation, sampling terminal 310 is dragged and sampling terminal 310 unstable structure appears, drops or even cracked risk.
As shown in fig. 3 and fig. 7, in the present embodiment, a wire slot 240 is disposed on the bracket assembly 200, the wire 330 is embedded in the wire slot 240, and a buckle 250 is further disposed on the bracket assembly 200, and the buckle 250 is used for clamping and fixing the wire 330. The arrangement of the wire groove 240 and the buckle 250 can play a certain restraint role on the wire 330, avoid the winding phenomenon of the wire 330 and improve the neatness and reliability of the module voltage acquisition system.
With continued reference to fig. 3 and fig. 7, the wire harness assembly 300 provided in this embodiment includes a plurality of sampling terminals 310, a plurality of tabs 110 are disposed on the battery cell body 100, the sampling terminals 310 and the tabs 110 are disposed correspondingly, each sampling terminal 310 is connected to one conducting wire 330, and finally the conducting wires 330 form a strand of wire harness, and in this embodiment, an operator can bind the strand of wire harness to the bracket assembly 200 through the binding band 260 or the binding band. Further, an insulating protective sleeve may be disposed on the outer side of the wire harness, and the binding band 260 or a binding band binds the insulating protective sleeve to the bracket assembly 200.
It should be noted that the module voltage acquisition system provided in this embodiment is not only suitable for acquiring voltage signals of the electrical core body 100, but also suitable for acquiring temperature signals, and only requires an operator to replace the sampling terminal 310 made of a metal material on the wire harness assembly 300 with a thermocouple, and then the thermocouple and the tab 110 are bonded by a heat-conducting adhesive, that is, the acquisition of the voltage signals and the temperature signals to the electrical core body 100 by the module voltage acquisition system in this embodiment belongs to the protection scope of the present invention, and the description is omitted here.
The invention also provides a battery module, which comprises two module voltage acquisition systems, a battery core body 100 and a shell 400, wherein the shell 400 is provided with two openings, the two module voltage acquisition systems are respectively arranged at the two openings, two end parts of the battery core body 100 respectively face the two openings, two end parts of the battery core body 100 are respectively provided with a lug 110, and the module voltage acquisition systems are connected with the lugs 110.
Further, the case 400 includes an upper cover 410, a bottom plate 420, a first side plate 430, and a second side plate 440. The upper cover 410 and the bottom plate 420 are arranged opposite to each other, and the first side plate 430 and the second side plate 440 are arranged opposite to each other. The casing 400 may be made of a metal material, so as to improve the mechanical load resistance of the battery module and protect the internal battery cell body 100 to a certain extent. The battery module that this embodiment provided simple structure, reliability and stability are high, can realize the purpose of accurate collection electric core body 100's voltage signal, also can improve processing assembly efficiency simultaneously.
It is to be understood that the foregoing is only illustrative of the preferred embodiments of the present invention and that the technical principles herein may be applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
It is noted that throughout the description herein, references to the description of "some embodiments," "other embodiments," or the like, are intended to mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.

Claims (10)

1. The utility model provides a module voltage acquisition system which characterized in that, module voltage acquisition system includes:
the support assembly is provided with an avoidance through groove, the tab is arranged in the avoidance through groove, and the support assembly is provided with a slot;
the wire harness assembly comprises a sampling terminal and a lead connected with the sampling terminal, the sampling terminal comprises a welding part and a bending part, the welding part is welded with the lug, and the bending part is inserted into the slot;
the connector is connected with the sampling terminal through the lead, so that a voltage signal can pass through the sampling terminal and be collected by the connector after passing through the lead.
2. The modular voltage acquisition system according to claim 1, wherein the soldering portion and the bending portion form a predetermined angle a, and the predetermined angle a is in a range of 0 ° < a < 180 °.
3. The module voltage collecting system of claim 1, wherein a protrusion is protruded from a sidewall of the slot, and the protrusion can abut against the bent portion.
4. The modular voltage collection system according to claim 1, wherein a limiting portion extends from the sampling terminal, and a limiting groove is disposed on the bracket assembly, and the limiting portion is disposed in the limiting groove.
5. The module voltage acquisition system according to claim 1, wherein the bracket assembly is provided with a limiting post, the sampling terminal is provided with a through hole, and the limiting post is inserted into the through hole;
the limiting column comprises a column body and a column head connected with the column body, and along the height direction of the column body, the projection area of the column head is larger than that of the through hole, and the projection area of the through hole is larger than that of the column body.
6. The modular voltage collection system of claim 1 wherein the weld defines an arcuate connecting portion, the arcuate connecting portion defining a plurality of strip-shaped apertures, the arcuate connecting portion configured to absorb the amount of expansion of the tab.
7. The modular voltage acquisition system of claim 1 wherein the bracket assembly has a wire slot, the wire being embedded in the wire slot.
8. The modular voltage collection system of claim 1, wherein the bracket assembly is provided with a snap for snap-fitting the wire.
9. The modular voltage acquisition system according to any one of claims 1-8 wherein the bracket assembly is made of rigid plastic and the sampling terminal is made of metal.
10. A battery module, which is characterized in that the battery module comprises two module voltage acquisition systems, a cell body and a shell, the shell is provided with two openings, the two module voltage acquisition systems are respectively arranged at the two openings, two ends of the cell body respectively face the two openings, two ends of the cell body are respectively provided with a lug, the module voltage acquisition systems are connected with the lugs, and the module voltage acquisition system is the module voltage acquisition system of any one of claims 1 to 9.
CN202210625672.6A 2022-06-02 2022-06-02 Module voltage acquisition system and battery module Pending CN115032550A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202210625672.6A CN115032550A (en) 2022-06-02 2022-06-02 Module voltage acquisition system and battery module
PCT/CN2023/097353 WO2023232060A1 (en) 2022-06-02 2023-05-31 Wiring unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210625672.6A CN115032550A (en) 2022-06-02 2022-06-02 Module voltage acquisition system and battery module

Publications (1)

Publication Number Publication Date
CN115032550A true CN115032550A (en) 2022-09-09

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CN202210625672.6A Pending CN115032550A (en) 2022-06-02 2022-06-02 Module voltage acquisition system and battery module

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024092860A1 (en) * 2022-10-31 2024-05-10 湖北亿纬动力有限公司 Collection assembly, battery module, and battery system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024092860A1 (en) * 2022-10-31 2024-05-10 湖北亿纬动力有限公司 Collection assembly, battery module, and battery system

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