WO2023202227A1 - 转接模块、电池模组、电池包和车辆 - Google Patents

转接模块、电池模组、电池包和车辆 Download PDF

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Publication number
WO2023202227A1
WO2023202227A1 PCT/CN2023/079067 CN2023079067W WO2023202227A1 WO 2023202227 A1 WO2023202227 A1 WO 2023202227A1 CN 2023079067 W CN2023079067 W CN 2023079067W WO 2023202227 A1 WO2023202227 A1 WO 2023202227A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode lead
out piece
positioning
sampling
support member
Prior art date
Application number
PCT/CN2023/079067
Other languages
English (en)
French (fr)
Inventor
胡世超
陈建恩
张耀升
高健
Original Assignee
比亚迪股份有限公司
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 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Publication of WO2023202227A1 publication Critical patent/WO2023202227A1/zh

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Classifications

    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • 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
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane

Definitions

  • the present disclosure relates to the field of vehicle technology, and specifically to an adapter module, a battery module, a battery pack and a vehicle.
  • the transfer module is generally configured with a ceramic cover structure, which is composed of a cover body, a positive pole, a negative pole, a positive lead-out piece, a negative lead-out piece, ceramic terminals, connectors and sampling components.
  • the transfer module has many parts and low integration, which results in high cost and a lot of inconvenience during use.
  • the present disclosure aims to solve at least one of the technical problems existing in the prior art.
  • the present disclosure proposes a transfer module that can improve the integration of the transfer module, reduce unnecessary components, reduce the manufacturing cost of the transfer module, and facilitate the insertion of the transfer module with external components.
  • the sampling component can better sample the battery cells.
  • the present disclosure further proposes a battery module using the above-mentioned adapter module.
  • the present disclosure further proposes a battery pack using the above-mentioned battery module.
  • the present disclosure further proposes a vehicle using the above-mentioned battery pack.
  • the adapter module includes: a support; a low-voltage plug connector, the low-voltage plug connector is provided on the support; and a sampling component, one end of the sampling component is provided on the A support member, one end of the sampling component is electrically connected to the low-voltage plug connector, and the sampling component is used for voltage sampling and/or temperature sampling; an electrode lead-out piece, the electrode lead-out sheet is arranged on the support member, The electrode lead-out piece is spaced apart from the low-voltage plug connector, and the electrode lead-out piece is electrically connected to one end of the sampling component.
  • the transfer module by arranging the low-voltage connector, one end of the sampling component, the electrode lead-out piece and the low-voltage connector all on the support, the integration of the transfer module can be improved and unnecessary components, which can reduce the manufacturing cost of the transfer module, and is arranged in this way to facilitate the connection between the transfer module and external components, and the sampling component can better sample the battery cells.
  • the electrode lead-out piece is snap-fitted with the support member.
  • the support member includes an outer frame, a support body and a positioning body.
  • the support body is disposed in the middle of the outer frame, and the positioning body is disposed at an edge of the outer frame.
  • the positioning body is located on both sides of the support body respectively;
  • the electrode lead-out piece includes: a positive electrode lead-out piece and a negative electrode lead-out piece, and the positive electrode lead-out piece is A part of the positive electrode lead-out piece and a part of the negative electrode lead-out piece are respectively positioned and matched with the corresponding positioning body.
  • the other part of the positive electrode lead-out piece and the other part of the negative electrode lead-out piece are snap-fitted with both sides of the support body respectively.
  • the electrode lead-out piece further includes an internal connection part, a connecting part and an external connection part.
  • the connection part is bent and connected between the internal connection part and the external connection part.
  • the external connection part In positioning and matching with the positioning body, the internal connecting part is provided with a first engaging part, and the side surface of the support body is provided with a second engaging part.
  • the first engaging part and the second engaging part are The connector snaps together to fit.
  • first clamping parts there are at least two first clamping parts, and the at least two first clamping parts are respectively located at both ends of the length direction of the inner joint, and the second clamping parts There are at least two, and at least two second clamping parts snap-fit with at least two first clamping parts in one-to-one correspondence.
  • the first engaging portion is a engaging groove provided at the end of the internal connection portion
  • the second engaging portion is a engaging protrusion provided on the side surface of the support body, The latching protrusion is engaged with the latching slot.
  • a third clamping portion is provided on a side surface of the support body, and the third clamping portion is clamped on an end of the external connection portion connected to the connecting portion.
  • a groove is provided on a side surface of the support body, the third engaging portion is an elastic buckle, and the elastic buckle is disposed in the groove.
  • the external part is provided with a first positioning part
  • the positioning body is provided with a second positioning part
  • one of the first positioning part and the second positioning part is a positioning post.
  • the other one of the first positioning part and the second positioning part is a positioning hole, and the positioning post fits on the positioning hole.
  • the low-voltage plug connector and the support member are integrally formed structural members; or the support member is provided with a fixed base, and the low-voltage plug connector is fixed on the fixed base.
  • the sampling assembly includes a sampling line and an electrical connection board.
  • the electrical connection board is provided at one end of the sampling line and is electrically connected to the plug connector.
  • the electrical connection board is also connected to The electrode lead-out pieces are electrically connected.
  • the battery module includes: a plurality of battery cells connected in series; according to the transfer module according to the first embodiment of the present disclosure, the support member is provided on the One end of the plurality of battery cores, the electrode lead-out piece is respectively connected to the electrode corresponding to the battery core at the head end and the tail end, and the sampling component is arranged on one side of the plurality of battery cores for voltage sampling and/or temperature sampling.
  • a battery pack according to a third embodiment of the present disclosure includes the battery module according to the above-mentioned second embodiment of the present disclosure.
  • a vehicle according to an embodiment of the fourth aspect of the present disclosure includes the battery pack according to the above-mentioned embodiment of the third aspect of the present disclosure.
  • Figure 1 is a schematic structural diagram of a switching module according to an embodiment of the present disclosure
  • Figure 2 is a partial structural schematic diagram of a switching module according to an embodiment of the present disclosure
  • Figure 3 is an exploded view of a transfer module according to an embodiment of the present disclosure
  • Figure 4 is a schematic structural diagram of a battery module according to another embodiment of the present disclosure.
  • Figure 5 is a schematic diagram of a vehicle according to an embodiment of the present disclosure.
  • Second positioning part 18. Fixed seat; 20. Low-voltage connector; 30. Sampling component; 31. Sampling line; 32. Electrical connection board; 40. Electrode lead-out piece; 41. Positive electrode lead-out piece; 42. Negative electrode lead-out piece; 43. Internal connection part; 44. Connection part; 45. External connection part; 46. First clamping part; 47. First positioning part; 2. Battery module; 50. Battery core; 3. Battery pack; 4. Vehicle.
  • first and second are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features. Further, in the description of the present disclosure, unless otherwise stated, the meaning of “plurality” is two or more.
  • the adapter module 1 is provided in the battery module 2, and the battery module 2 is provided with battery cells 50.
  • the switching module 1 can switch the output and/or input signals of the battery core 50 , for example, it can convert the current, so that the input and/or output of the current can be converted between direct current and alternating current, so that the battery core 50 can work normally.
  • the adapter module 1 includes a support member 10 , a low-voltage plug connector 20 , a sampling assembly 30 and an electrode lead-out piece 40 .
  • the support member 10 can play a supporting role.
  • the support member 10 is disposed on the battery core 50 to facilitate the connection between the entire adapter module 1 and the battery core 50 .
  • the low-voltage connector 20 is mainly used for external connections. The components are plugged together so that the battery core 50 can transmit signals with external components.
  • the support member 10 may be a support member 10 made of plastic.
  • the sampling component 30 can sample the battery core 50 .
  • the sampling component 30 may be used for voltage sampling and/or temperature sampling.
  • the sampling component 30 can collect the voltage and temperature information of the battery core 50 in real time, and compare the collected voltage and temperature information with normal values, thereby protecting the battery core 50 and ensuring the normal operation of the battery core 50 .
  • the sampling component 30 is not limited to collecting voltage and temperature information of the battery cores 50 , for example, it can also collect current information between the battery cores 50 .
  • the electrode lead-out piece 40 can be connected to the battery core 50 to facilitate electrical connection between the battery core 50 and other components.
  • the low-voltage plug connector 20 is disposed on the support 10, and one end of the sampling assembly 30 is disposed on the support 10.
  • the above-mentioned end of the sampling assembly 30 is electrically connected to the low-voltage plug connector 20, and the electrode lead-out piece 40 is disposed on the support member 10 , the electrode lead-out piece 40 is spaced apart from the low-voltage plug connector 20 , and the electrode lead-out piece 40 is electrically connected to one end of the sampling assembly 30 .
  • the electrode lead-out piece 40 is disposed on the support 10 , the electrode lead-out piece 40 is connected to the battery core 50 , and the electrode lead-out piece 40 is electrically connected to one end of the sampling component 30 , so that the sampling component 30 can be connected to the battery through the electrode lead-out piece 40
  • the battery core 50 is connected, so that the battery core 50 can be sampled to ensure that the battery core 50 can work normally.
  • One end of the sampling component 30 is disposed on the support 10, and one end of the sampling component 30 is electrically connected to the low-voltage plug connector 20, so that the low-voltage plug connector 20 can be electrically connected to the battery core 50 through the sampling component 30, so that it can be connected to the battery core. 50 signal transmission.
  • the electrode lead-out piece 40 is spaced apart from the low-voltage plug connector 20, which facilitates installation and avoids interference between the electrode lead-out piece 40 and the low-voltage plug connector 20, which affects the normal operation of the transfer module 1.
  • the integration level of the transfer module 1 can be improved and unnecessary components, thereby reducing the manufacturing cost of the transfer module 1, and being arranged in this way facilitates the connection between the transfer module 1 and external components, and the sampling assembly 30 can better sample the battery core 50.
  • the electrode lead-out piece 40 is snap-fitted with the support member 10 .
  • the electrode lead-out piece 40 and the support member 10 can be matched by snapping, which can make the connection between the electrode lead-out sheet 40 and the support member 10 more firm and reliable.
  • the electrode lead-out sheet 40 and the support member 10 can be connected.
  • the support member 10 is simpler and more convenient to assemble, and can improve assembly efficiency.
  • the support member 10 includes an outer frame 11 , a support body 12 and a positioning body 13 .
  • the support body 12 is disposed in the middle of the outer frame 11
  • the positioning body 13 is disposed at the edge of the outer frame 11 .
  • the positioning bodies 13 are respectively located on both sides of the support body 12 .
  • the electrode lead-out piece 40 includes a positive electrode lead-out piece 41 and a negative electrode lead-out piece 42. A part of the positive electrode lead-out piece 41 and a part of the negative electrode lead-out piece 42 are respectively positioned and matched with the corresponding positioning body 13. The other part of the positive electrode lead-out piece 41 and the negative electrode lead-out piece 42 The other part snap-fits with both sides of the support body 12 respectively.
  • the outer frame 11 can play an installation role.
  • the support body 12 is the main part of the support member 10 and can play a supporting role.
  • the positioning body 13 can play a positioning role.
  • the positive lead-out piece 41 and the negative lead-out piece 42 are respectively connected with the battery core.
  • the positive and negative electrodes of 50 are connected, so that the battery core 50 can transmit signals.
  • the support body 12 is arranged in the middle of the outer frame 11, so that the outer frame 11 leaves installation space on both sides of the support body 12, and the positioning body 13 is arranged at the edge of the outer frame 11, And the positioning bodies 13 are respectively located on both sides of the support body 12.
  • the positive electrode lead-out piece 41 and the negative electrode lead-out piece 42 are installed, at least part of them needs to be positioned and matched with the corresponding positioning body 13, which facilitates the positive electrode lead-out piece 41 and the negative electrode lead-out piece 42. Alignment installation, and the position of the positive electrode lead-out piece 41 and the negative electrode lead-out piece 42 can be fixed to a certain extent.
  • the other part of the positive electrode lead-out piece 41 and the other part of the negative electrode lead-out piece 42 are snap-fitted with both sides of the support body 12 respectively, so that the positive electrode lead-out piece 41 and the negative electrode lead-out piece 42 can be further fixed, so that the positive electrode lead-out piece 41
  • the connection between the negative electrode lead-out piece 42 and the support member 10 is more stable and reliable.
  • the electrode lead piece 40 includes an internal connection part 43, a connection part 44 and an external connection part 45.
  • the connection part 44 is bent and connected between the internal connection part 43 and the external connection part 45.
  • the external connection part 45 is positioned and matched with the positioning body 13.
  • the internal connection part 43 is provided with a first snap-in part 46.
  • the side surface of the support body 12 is provided with a second snap-in part 14.
  • the first snap-in part 46 and the second snap-in part are Part 14 is snap-fitted.
  • the connecting part 44 can play a connecting role.
  • the connecting part 44 is connected between the internal connecting part 43 and the external connecting part 45, so that the electrode lead-out piece 40 can be connected as a whole, which facilitates the overall installation and setting of the electrode lead-out piece 40.
  • the connecting portion 44 is bent, so that the structure of the electrode lead-out piece 40 can match the structure of the support member 10 and can be better fixed on the support member 10 .
  • the external part 45 is positioned and matched with the positioning body 13, which facilitates the alignment installation of the electrode lead-out piece 40 and the support member 10, can prevent fooling, and can fix the positions of the positive electrode lead-out piece 41 and the negative electrode lead-out piece 42 to a certain extent.
  • a first snap-in part 46 is provided in the connecting part 43, and a second snap-in part 14 is provided on the side surface of the support body 12. The first snap-in part 46 can snap-fit with the second snap-in part 14, so that The electrode lead-out piece 40 can be disposed on the support member 10 more stably, so that the electrode lead-out piece 40 can work more stably.
  • first clamping parts 46 there are at least two first clamping parts 46 , and the at least two first clamping parts 46 are respectively located at both ends of the length direction of the internal connecting part 43 , and the second clamping part 14 There are at least two, and the at least two second engaging portions 14 are engaged with the at least two first engaging portions 46 in a one-to-one correspondence.
  • first latching parts 46 and at least two second latching parts 14 There are at least two first latching parts 46 and at least two second latching parts 14 , and the at least two first latching parts 46 are respectively located at both ends of the inner connecting part 43 in the length direction.
  • both ends of the inner connecting portion 43 in the length direction can be stably disposed on the support member 10 , thereby ensuring the stability of the electrode lead-out piece 40 provided on the support member 10 .
  • the first engaging portion 46 is a engaging groove provided at the end of the internal connecting portion 43
  • the second engaging portion 14 is a engaging protrusion provided on the side surface of the supporting body 12 .
  • the protrusion is engaged with the card slot.
  • the first latching part 46 is configured as a latching groove
  • the second latching part 14 is configured as a latching protrusion.
  • a third clamping portion 15 is provided on the side surface of the support body 12 , and the third clamping portion 15 is clamped on one end of the connecting portion 45 and the connecting portion 44 .
  • a third clamping portion 15 is provided on the side surface of the support body 12 , and the third clamping portion 15 is clamped on one end of the connecting portion 45 and the connecting portion 44 , so that the electrode lead-out piece 40 can be further fixed. , defining the position of the electrode lead-out piece 40 to prevent the electrode lead-out piece 40 from shaking or even being displaced during operation, so that the electrode lead-out piece 40 can work more stably.
  • a groove 16 is provided on the side surface of the support body 12
  • the third engaging portion 15 is an elastic buckle
  • the elastic buckle is disposed in the groove 16 .
  • the external portion 45 is provided with a first positioning portion 47
  • the positioning body 13 is provided with a second positioning portion 17.
  • One of the first positioning portion 47 and the second positioning portion 17 is Positioning post
  • the other one of the first positioning part 47 and the second positioning part 17 is a positioning hole
  • the positioning post fits on the positioning hole. That is to say, one of the external part 45 and the positioning body 13 is provided with a positioning post, and the other one of the external part 45 and the positioning body 13 is provided with a positioning hole.
  • the positioning post is matched with the positioning hole, so that positioning can be achieved.
  • the guide function can make the external part 45 more accurately assembled to the positioning body 13 to prevent fooling, and the positioning cooperation between the positioning post and the positioning hole can also play a fixing role to a certain extent, so that the electrode leads out 40 is relatively fixed on the support member 10 .
  • the low-voltage plug connector 20 and the support member 10 are integrally formed structural members, or the support member 10 is provided with a fixing seat 18 , and the low-voltage plug connector 20 fixed on the fixed base 18.
  • the low-voltage plug connector 20 and the support member 10 can be an integral structural member, so that the connection between the low-voltage plug connector 20 and the support member 10 is stronger and the connection reliability between the low-voltage plug connector 20 and the support member 10 can be improved. sex.
  • the support 10 is provided with a fixed base 18, and the low-voltage plug connector 20 can be pre-fixed on the fixed base 18 by plugging, and then the low-voltage plug connector 20 can be fixed on the fixed base 18 by welding or hot melting. This facilitates the production of the low-voltage plug connector 20 and the support member 10 and prevents other components from interfering when the low-voltage plug connector 20 and the support member 10 are assembled.
  • the sampling component 30 includes a sampling line 31 and an electrical connection board 32.
  • the electrical connection board 32 is provided at one end of the sampling line 31, and the electrical connection board 32 is electrically connected to the plug connector. , the electrical connection board 32 is also electrically connected to the electrode lead-out piece 40 .
  • the sampling line 31 can play a sampling role, and the electrical connection board 32 can play a control role.
  • the electrical connection board 32 is set at one end of the sampling line 31, and the information collected by the sampling line 31 can be sent to the electrical connection board 32.
  • the connection board 32 can process information, thereby ensuring the normal operation of the battery core 50 .
  • the electrical connection board 32 is electrically connected to the low-voltage plug connector 20, and is also electrically connected to the electrode lead-out piece 40. In this way, the electrical connection board 32 can control the low-voltage plug connector 20 and the battery core 50 at the same time, and can control The signals transmitted between the low-voltage connector 20 and the battery core 50 are converted so that the battery core 50 outputs and/or inputs required signals, thereby ensuring the normal operation of the battery core 50 .
  • the battery module 2 includes a plurality of battery cells 50 and the adapter module 1 according to the above-mentioned first embodiment of the present disclosure.
  • the plurality of battery cells 50 are connected in series.
  • the support member 10 is disposed at one end of the plurality of battery cores 50.
  • the electrode lead-out pieces 40 are respectively connected to the electrodes corresponding to the battery cores 50 at the head end and the tail end.
  • the sampling component 30 is disposed on one side of the plurality of battery cores 50 for use. for voltage sampling and/or temperature sampling.
  • the battery cells 50 at both ends can form a U-row structure, and the support member 10 can be disposed at one end of it, and the electrodes are drawn out
  • the chip 40 can be connected to the battery core 50 connected end-to-end at this end, and one end of the sampling component 30 is also located at this end.
  • the sampling component 30 can better monitor the battery cores 50.
  • the voltage and temperature are sampled to ensure that multiple cells 50 can work normally.
  • the sampling component 30 can also sample the battery cores 50 connected end-to-end located in the middle, and the battery cores 50 connected end-to-end located at the other end.
  • the battery pack 3 according to the third embodiment of the present disclosure includes the battery module 2 according to the above-mentioned second embodiment of the present disclosure.
  • a vehicle 4 according to the fourth embodiment of the present disclosure includes the battery pack 3 according to the above-mentioned third embodiment of the present disclosure.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

一种转接模块(1)、电池模组(2)、电池包(3)和车辆(4)，转接模块(1)包括支撑件(10)、低压插接件(20)、采样组件(30)和电极引出片(40)。低压插接件(20)设置于支撑件(10)上。采样组件(30)的一端设置于支撑件，采样组件(30)的上述一端与低压插接件(20)电连接，采样组件(30)用于电压采样和/或温度采样。电极引出片(40)设置于支撑件(10)上，电极引出片(40)与低压插接件(20)间隔设置，且电极引出片(40)与采样组件(30)的上述一端电连接。

Description

转接模块、电池模组、电池包和车辆
相关申请的交叉引用
本申请要求比亚迪股份有限公司于2022年4月21日提交的名称为“转接模块、电池模组、电池包和车辆”的中国专利申请号“202210437312.3”的优先权。
技术领域
本公开涉及车辆技术领域，具体而言，涉及一种转接模块、电池模组、电池包和车辆。
背景技术
相关技术中，转接模块一般设置成陶瓷盖板结构，由盖板主体、正极柱、负极柱、正极引出片、负极引出片、陶瓷端子、接插件和采样组件形成。然而，该转接模块的零部件较多，集成度低，从而使成本较高，而且在使用时也存在很多不便。
公开内容
本公开旨在至少解决现有技术中存在的技术问题之一。为此，本公开提出了一种转接模块，该转接模块可以提升转接模块的集成度，减少不必要的部件，降低转接模块的制作成本，而且便于转接模块与外接部件插接配合，采样组件可以更好地对电芯进行采样。
本公开进一步地提出了一种采用上述转接模块的电池模组。
本公开还进一步地提出了一种采用上述电池模组的电池包。
本公开再进一步地提出了一种采用上述电池包的车辆。
根据本公开第一方面实施例的转接模块，包括：支撑件；低压插接件，所述低压插接件设置于所述支撑件上；采样组件，所述采样组件的一端设置于所述支撑件，所述采样组件的一端与所述低压插接件电连接，所述采样组件用于电压采样和/或温度采样；电极引出片，所述电极引出片设置于所述支撑件上，所述电极引出片与所述低压插接件间隔设置，且所述电极引出片与所述采样组件的一端电连接。
根据本公开实施例的转接模块，通过将低压插接件、采样组件的一端、电极引出片和低压插接件全部设置于支撑件上，这样可以提升转接模块的集成度，减少不必要的部件，从而可以降低转接模块的制作成本，而且这样设置，便于转接模块与外接部件插接配合，以及采样组件可以更好地对电芯进行采样。
在本公开的一些示例中，所述电极引出片与所述支撑件卡接配合。
在本公开的一些示例中，所述支撑件包括外框架、支撑主体和定位主体，所述支撑主体设置于所述外框架的中部，所述定位主体设置于所述外框架的边缘处，所述定位主体分别位于所述支撑主体的两侧；所述电极引出片包括：正极引出片和负极引出片，所述正极引出片的 一部分和所述负极引出片的一部分分别与对应的所述定位主体定位配合，所述正极引出片的另一部分和所述负极引出片的另一部分分别与所述支撑主体的两侧卡接配合。
在本公开的一些示例中，所述电极引出片还包括内接部、连接部和外接部，所述连接部弯折连接于所述内接部和所述外接部之间，所述外接部与所述定位主体定位配合，所述内接部设置有第一卡接部，所述支撑主体的侧表面上设置有第二卡接部，所述第一卡接部和所述第二卡接部卡接配合。
在本公开的一些示例中，所述第一卡接部为至少两个，至少两个所述第一卡接部分别位于所述内接部长度方向的两端，所述第二卡接部为至少两个，至少两个所述第二卡接部与至少两个所述第一卡接部一一对应地卡接配合。
在本公开的一些示例中，所述第一卡接部为设置于所述内接部端部的卡槽，所述第二卡接部为设置于所述支撑主体侧表面上的卡凸，所述卡凸与所述卡槽卡接配合。
在本公开的一些示例中，所述支撑主体的侧表面上设置有第三卡接部，所述第三卡接部卡接在所述外接部与所述连接部连接的一端上。
在本公开的一些示例中，所述支撑主体的侧表面上设置有凹槽，所述第三卡接部为弹性卡扣，所述弹性卡扣设置于所述凹槽内。
在本公开的一些示例中，所述外接部上设置有第一定位部，所述定位主体设置有第二定位部，所述第一定位部和所述第二定位部中的一个为定位柱，所述第一定位部和所述第二定位部中的另一个为定位孔，所述定位柱配合在所述定位孔上。
在本公开的一些示例中，所述低压插接件和所述支撑件为一体成型的结构件；或所述支撑件设置有固定座，所述低压插接件固定在所述固定座上。
在本公开的一些示例中，所述采样组件包括采样线和电连接板，所述电连接板设置于所述采样线的一端且与所述插接件电连接，所述电连接板还与所述电极引出片电连接。
根据本公开第二方面实施例的电池模组，包括：多个电芯，多个所述电芯串联连接；根据本公开上述第一方面实施例的转接模块，所述支撑件设置于所述多个电芯的一端，所述电极引出片分别与位于首端和尾端的所述电芯对应的电极相连接，所述采样组件设置于多个所述电芯的一侧，以用于电压采样和/或温度采样。
根据本公开第三方面实施例的电池包，包括根据本公开上述第二方面实施例的电池模组。
根据本公开第四方面实施例的车辆，包括根据本公开上述第三方面实施例的电池包。
本公开的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本公开实施例的转接模块的结构示意图；
图2是根据本公开实施例的转接模块的局部结构示意图；
图3是根据本公开实施例的转接模块的爆炸图；
图4是根据本公开另一个实施例的电池模组的结构示意图；
图5是根据本公开实施例的车辆的示意图。
附图标记：
1、转接模块；
10、支撑件；11、外框架；12、支撑主体；13、定位主体；14、第二卡接部；15、第三卡接部；16、凹槽；17、第二定位部；18、固定座；20、低压插接件；30、采样组件；31、采样线；32、电连接板；40、电极引出片；41、正极引出片；42、负极引出片；43、内接部；44、连接部；45、外接部；46、第一卡接部；47、第一定位部；2、电池模组；50、电芯；3、电池包；4、车辆。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本公开，而不能理解为对本公开的限制。
在本公开的描述中，需要理解的是，术语“中心”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
需要说明的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。进一步地，在本公开的描述中，除非另有说明，“多个”的含义是两个或两个以上。
下面参考图1-图4描述根据本公开实施例的转接模块1，以及电池模组2。转接模块1设置于电池模组2，电池模组2设置有电芯50。转接模块1可以转接电芯50的输出和/或输入信号，例如：可以转换电流，使电流的输入和/或输出在直流电和交流电之间转换，从而使电芯50正常工作。
如图1-图3所示，根据本公开第一方面实施例的转接模块1，包括支撑件10、低压插接件20、采样组件30和电极引出片40。支撑件10可以起到支撑的作用，一般将支撑件10设置于电芯50上，这样便于转接模块1整体与电芯50的连接。低压插接件20则主要用于外接 部件的插接，这样可以使电芯50与外接部件进行信号传输。支撑件10可以为塑胶制成的支撑件10。
采样组件30可以对电芯50进行采样。具体地，采样组件30可以用于电压采样和/或温度采样。这样采样组件30可以实时采集到电芯50的电压和温度信息，并且将采集到的电压和温度信息与正常值做比较，从而可以保护电芯50，保证电芯50正常工作。当然，采样组件30也不仅限于采集电芯50的电压和温度信息，例如：也可以采集电芯50之间的电流信息。而电极引出片40可以与电芯50连接，便于电芯50与其它部件电连接。
如图1和图2所示，低压插接件20设置于支撑件10上，采样组件30的一端设置于支撑件10，采样组件30的上述一端与低压插接件20电连接，电极引出片40设置于支撑件10上，电极引出片40与低压插接件20间隔设置，而且电极引出片40与采样组件30的一端电连接。也就是说，电极引出片40设置于支撑件10上，电极引出片40与电芯50连接，且电极引出片40与采样组件30的一端电连接，这样采样组件30可以通过电极引出片40与电芯50连接，从而可以对电芯50进行采样，保证电芯50可以正常工作。采样组件30的一端设置于支撑件10，而且采样组件30的一端与低压插接件20电连接，这样低压插接件20又可以通过采样组件30与电芯50电连接，从而可以与电芯50信号传输。另外，电极引出片40与低压插接件20间隔设置，这样可以便于设置，而且可以避免电极引出片40与低压插接件20之间产生干涉，影响转接模块1正常工作。
由此，通过将低压插接件20、采样组件30的一端、电极引出片40和低压插接件20全部设置于支撑件10上，这样可以提升转接模块1的集成度，减少不必要的部件，从而可以降低转接模块1的制作成本，而且这样设置，便于转接模块1与外接部件插接配合，以及采样组件30可以更好地对电芯50进行采样。
可选地，如图1和图2所示，电极引出片40与支撑件10卡接配合。电极引出片40与支撑件10之间可以通过卡接的方式进行配合，这样可以使电极引出片40与支撑件10之间的连接更加牢固可靠，而且通过卡接的方式，电极引出片40与支撑件10在装配时更加简单方便，可以提升装配效率。
具体地，如图1-图3所示，支撑件10包括外框架11、支撑主体12和定位主体13，支撑主体12设置于外框架11的中部，定位主体13设置于外框架11的边缘处，定位主体13分别位于支撑主体12的两侧。电极引出片40包括正极引出片41和负极引出片42，正极引出片41的一部分和负极引出片42的一部分分别与对应的定位主体13定位配合，正极引出片41的另一部分和负极引出片42的另一部分分别与支撑主体12的两侧卡接配合。
外框架11可以起到安装作用，支撑主体12为支撑件10的主要部分，可以起到支撑作用，而定位主体13则可以起到定位作用，正极引出片41和负极引出片42分别与电芯50的正极和负极连接，从而可以使电芯50进行信号传输。将支撑主体12设置于外框架11的中部，这样外框架11在支撑主体12的两侧留有安装空间，而定位主体13设置于外框架11的边缘处， 并且定位主体13分别位于支撑主体12的两侧，这样正极引出片41和负极引出片42在安装时，至少一部分需要与对应的定位主体13定位配合，这样便于正极引出片41和负极引出片42的对位安装，而且可以在一定程度上固定正极引出片41和负极引出片42的位置。另外，正极引出片41的另一部分和负极引出片42的另一部分又分别与支撑主体12的两侧卡接配合，这样可以进一步地固定正极引出片41和负极引出片42，使正极引出片41和负极引出片42与支撑件10之间的连接更加稳定可靠。
需要说明的是，如图2和图3所示，电极引出片40包括内接部43、连接部44和外接部45，连接部44弯折连接于内接部43和外接部45之间，外接部45与定位主体13定位配合，内接部43设置有第一卡接部46，支撑主体12的侧表面上设置有第二卡接部14，第一卡接部46和第二卡接部14卡接配合。连接部44可以起到连接的作用，将连接部44连接于内接部43和外接部45之间，这样可以将电极引出片40连接成一个整体，方便电极引出片40的整体安装和设置，而连接部44弯折设置，这样可以使电极引出片40的结构与支撑件10的结构相适配，可以更好地固定于支撑件10上。
外接部45与定位主体13定位配合，这样便于电极引出片40与支撑件10的对位安装，可以起到防呆作用，而且可以在一定程度上固定正极引出片41和负极引出片42的位置。在内接部43设置有第一卡接部46，而支撑主体12的侧表面上设置有第二卡接部14，第一卡接部46可以和第二卡接部14卡接配合，从而可以使电极引出片40更稳固地设置于支撑件10上，使电极引出片40可以更稳定地工作。
进一步地，如图2和图3所示，第一卡接部46为至少两个，至少两个第一卡接部46分别位于内接部43长度方向的两端，第二卡接部14为至少两个，至少两个第二卡接部14与至少两个第一卡接部46一一对应地卡接配合。将第一卡接部46和第二卡接部14均设置为至少两个，而且至少两个第一卡接部46分别位于内接部43长度方向的两端，在至少两个第二卡接部14与至少两个第一卡接部46一一对应地卡接配合后，内接部43长度方向的两端均可以稳固地设置于支撑件10上，从而可以保证电极引出片40稳定设置于支撑件10。
其中，如图2和图3所示，第一卡接部46为设置于内接部43端部的卡槽，第二卡接部14为设置于支撑主体12侧表面上的卡凸，卡凸与卡槽卡接配合。将第一卡接部46设置为卡槽，第二卡接部14设置为卡凸，通过卡凸卡接于卡槽内，可以使电极引出片40固定于支撑件10，而且卡凸和卡槽的结构简单，便于加工。另外，在装配时，通过卡凸与卡槽的卡接配合，可以使操作更加简单方便。
此外，如图1和图3所示，支撑主体12的侧表面上设置有第三卡接部15，第三卡接部15卡接在外接部45与连接部44连接的一端上。在支撑主体12的侧表面上设置有第三卡接部15，而且第三卡接部15卡接在外接部45与连接部44连接的一端上，这样可以进一步地对电极引出片40进行固定，限定电极引出片40的位置，防止电极引出片40在工作时抖动甚至产生移位，从而可以使电极引出片40更稳定地工作。
当然，如图3所示，支撑主体12的侧表面上设置有凹槽16，第三卡接部15为弹性卡扣，弹性卡扣设置于凹槽16内。可以理解地，当电极引出片40装配至支撑件10内时，需要先按压第三卡接部15，而在支撑主体12的侧表面上设置有凹槽16，并且第三卡接部15为弹性卡扣，弹性卡扣可以弹性变形，在按压第三卡接部15时，第三卡接部15可以避让至凹槽16内，这样电极引出片40可以更好地装配至支撑件10内，当电极引出片40装配至支撑件10后，解除对于第三卡接部15的压力，此时第三卡接部15由于弹性性能自动恢复至原位，从而可以对电极引出片40起到卡接限位的作用。
另外，如图1和图3所示，外接部45上设置有第一定位部47，定位主体13设置有第二定位部17，第一定位部47和第二定位部17中的其中一个为定位柱，第一定位部47和第二定位部17中的另一个为定位孔，定位柱配合在定位孔上。也就是说，外接部45和定位主体13中的其中一个设置有定位柱，外接部45和定位主体13中的另一个设置有定位孔，通过定位柱配合在定位孔上，这样可以起到定位导向的作用，可以使外接部45更加准确地装配至定位主体13上，起到防呆作用，而且定位柱与定位孔的定位配合，也可以在一定程度上起到固定作用，使电极引出片40相对固定于支撑件10上。
根据本公开的一个可选实施例，如图1-图3所示，低压插接件20和支撑件10为一体成型的结构件，或支撑件10设置有固定座18，低压插接件20固定在固定座18上。低压插接件20和支撑件10可以为一体成型的结构件，这样低压插接件20和支撑件10之间的连接更加牢固，可以提升低压插接件20和支撑件10之间的连接可靠性。或者，在支撑件10上设置有固定座18，低压插接件20可以先通过插接的方式预固定在固定座18上，然后通过焊接或热熔的方式将低压插接件20固定在固定座18上，这样则方便低压插接件20和支撑件10的制作，而且在低压插接件20和支撑件10装配时不易于其它部件产生干涉。
除此之外，如图1-图3所示，采样组件30包括采样线31和电连接板32，电连接板32设置于采样线31的一端，而且电连接板32与插接件电连接，电连接板32还与电极引出片40电连接。采样线31可以起到采样的作用，电连接板32则可以起到控制作用，将电连接板32设置于采样线31的一端，采样线31采集到的信息可以发送到电连接板32，电连接板32可以对信息进行处理，从而可以保证电芯50正常工作。电连接板32与低压插接件20电连接，而且电连接板32还与电极引出片40电连接，这样电连接板32可以同时对低压插接件20和电芯50进行控制，而且可以对低压插接件20和电芯50之间传递的信号进行转换，使电芯50输出和/或输入所需要的信号，从而可以保证电芯50正常工作。
如图4所示，根据本公开第二方面实施例的电池模组2，包括多个电芯50和根据本公开上述第一方面实施例的转接模块1，多个电芯50串联连接，支撑件10设置于多个电芯50的一端，电极引出片40分别与位于首端和尾端的电芯50对应的电极相连接，采样组件30设置于多个电芯50的一侧，以用于电压采样和/或温度采样。也就是说，多个电芯50串联连接后，位于两端的电芯50可以形成U行结构，而支撑件10可以设置于其中的一端，而且电极引出 片40可以与位于该端首尾连接的电芯50相连接，而且采样组件30的一端也位于该端由如此，在多个电芯50工作时，采样组件30可以更好地对电芯50的电压和温度进行采样，保证多个电芯50可以正常工作。当然，采样组件30也可以对位于中间的首尾连接的电芯50，以及位于另一端的首尾连接的电芯50进行采样。
如图5所示，根据本公开第三方面实施例的电池包3，包括根据本公开上述第二方面实施例的电池模组2。
如图5所示，根据本公开第四方面实施例的车辆4，包括根据本公开上述第三方面实施例的电池包3。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本公开的实施例，本领域的普通技术人员可以理解：在不脱离本公开的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本公开的范围由权利要求及其等同物限定。

Claims (14)

  1. 一种转接模块(1)，其特征在于，包括：
    支撑件(10)；
    低压插接件(20)，所述低压插接件(20)设置于所述支撑件(10)上；
    采样组件(30)，所述采样组件(30)的一端设置于所述支撑件(10)，所述采样组件(30)的所述一端与所述低压插接件(20)电连接，所述采样组件(30)用于电压采样和/或温度采样；和
    电极引出片(40)，所述电极引出片(40)设置于所述支撑件(10)上，所述电极引出片(40)与所述低压插接件(20)间隔设置，且所述电极引出片(40)与所述采样组件(30)的所述一端电连接。
  2. 根据权利要求1所述的转接模块(1)，其特征在于，所述电极引出片(40)与所述支撑件(10)卡接配合。
  3. 根据权利要求2所述的转接模块(1)，其特征在于，所述支撑件(10)包括外框架(11)、支撑主体(12)和定位主体(13)，所述支撑主体(12)设置于所述外框架(11)的中部，所述定位主体(13)设置于所述外框架(11)的边缘处，所述定位主体(13)分别位于所述支撑主体(12)的两侧；
    所述电极引出片(40)包括正极引出片(41)和负极引出片(42)，所述正极引出片(41)的一部分和所述负极引出片(42)的一部分分别与对应的所述定位主体(13)定位配合，所述正极引出片(41)的另一部分和所述负极引出片(42)的另一部分分别与所述支撑主体(12)的两侧卡接配合。
  4. 根据权利要求3所述的转接模块(1)，其特征在于，所述电极引出片(40)还包括内接部(43)、连接部(44)和外接部(45)，所述连接部(44)弯折连接于所述内接部(43)和所述外接部(45)之间，所述外接部(45)与所述定位主体(13)定位配合，所述内接部(43)设置有第一卡接部(46)，所述支撑主体(11)的侧表面上设置有第二卡接部(14)，所述第一卡接部(46)和所述第二卡接部(14)卡接配合。
  5. 根据权利要求4所述的转接模块(1)，其特征在于，所述第一卡接部(46)为至少两个，至少两个所述第一卡接部(46)分别位于所述内接部(43)的长度方向的两端，所述第二卡接部(14)为至少两个，至少两个所述第二卡接部(14)与至少两个所述第一卡接部(46)一一对应地卡接配合。
  6. 根据权利要求4或5所述的转接模块(1)，其特征在于，所述第一卡接部(46)为设置于所述内接部(43)的端部的卡槽，所述第二卡接部(14)为设置于所述支撑主体(11)的侧表面上的卡凸，所述卡凸与所述卡槽卡接配合。
  7. 根据权利要求3-6中任一项所述的转接模块(1)，其特征在于，所述支撑主体(11)的侧表面上设置有第三卡接部(15)，所述第三卡接部(15)卡接在所述外接部(45)与所 述连接部(44)连接的一端上。
  8. 根据权利要求7所述的转接模块(1)，其特征在于，所述支撑主体(11)的侧表面上设置有凹槽(16)，所述第三卡接部(15)为弹性卡扣，所述弹性卡扣设置于所述凹槽(16)内。
  9. 根据权利要求3-8中任一项所述的转接模块(1)，其特征在于，所述外接部(45)上设置有第一定位部(47)，所述定位主体(13)设置有第二定位部(17)，所述第一定位部(47)和所述第二定位部(17)中的其中一个为定位柱，所述第一定位部(47)和所述第二定位部(17)中的另一个为定位孔，所述定位柱配合在所述定位孔上。
  10. 根据权利要求1-9中任一项所述的转接模块(1)，其特征在于，所述低压插接件(20)和所述支撑件(10)为一体成型的结构件；或
    所述支撑件(10)设置有固定座(18)，所述低压插接件(20)固定在所述固定座(18)上。
  11. 根据权利要求1-10中任一项所述的转接模块(1)，其特征在于，所述采样组件(30)包括采样线(31)和电连接板(32)，所述电连接板(32)设置于所述采样线(31)的一端，且所述电连接板(32)与所述低压插接件(20)电连接，所述电连接板(32)还与所述电极引出片(40)电连接。
  12. 一种电池模组(2)，其特征在于，包括：
    多个电芯(5)，多个所述电芯(50)串联连接；和
    权利要求1-11中任一项所述的转接模块(1)，所述支撑件(10)设置于所述多个电芯(50)的一端，所述电极引出片(40)分别与位于首端和尾端的所述电芯(50)对应的电极相连接，所述采样组件(30)设置于多个所述电芯(50)的一侧，以用于电压采样和/或温度采样。
  13. 一种电池包(3)，其特征在于，包括根据权利要求12中所述的电池模组(2)。
  14. 一种车辆(4)，其特征在于，包括根据权利要求13所述的电池包(3)。
PCT/CN2023/079067 2022-04-21 2023-03-01 转接模块、电池模组、电池包和车辆 WO2023202227A1 (zh)

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