CN210607528U - Device for collecting voltage and temperature of soft package battery module - Google Patents
Device for collecting voltage and temperature of soft package battery module Download PDFInfo
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- CN210607528U CN210607528U CN201921697390.7U CN201921697390U CN210607528U CN 210607528 U CN210607528 U CN 210607528U CN 201921697390 U CN201921697390 U CN 201921697390U CN 210607528 U CN210607528 U CN 210607528U
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- 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
Abstract
The utility model provides a device for gathering laminate polymer battery module voltage and temperature, can solve current group battery voltage and temperature sampling mode occupation space, complicated and the low technical problem of utilization ratio. The voltage sampling copper bars are fixed on the integrated cover plates at the two ends of the module respectively through the arrangement of voltage sampling copper bars, the voltage signals at the two ends of the soft package battery are collected, the temperature sensor is fixed on the integrated cover plates and is attached to the heating panel at the end part of the battery core, the temperature signals of the voltage sampling copper bars and the temperature signals collected by the temperature sensor are collected on the wire outlet socket through the arrangement of the PCB, the voltage signals of the copper bars at the tail end of the module are collected through the switching wiring harnesses by the PCB tail switching socket, and the wire outlet socket collects all the voltage signals and the temperature signals of. The utility model can greatly utilize the limited space of the module, and improve the volume energy density of the battery pack; the accuracy of temperature sampling is improved, the fixed scheduling problem of pencil has been reduced, module packaging efficiency has been promoted, and the whole life-span is promoted in welding position's the processing of spraying paint.
Description
Technical Field
The utility model relates to a battery technology field, concretely relates to a device for gathering laminate polymer battery module voltage and temperature.
Background
With the development of new energy automobiles and the maturity of power batteries, the power batteries are developing towards the direction of higher energy density, smaller volume and higher power density, and the development of soft package lithium batteries becomes a development trend of subsequent power batteries; battery units composed of soft-package batteries are increasingly widely used in electric vehicles as energy storage devices.
The power battery pack is used as the core of an electric vehicle energy system, and the battery management system must monitor the single voltage of the power battery and the temperature of the battery pack in real time, so that the problem caused by the failure of the single battery is avoided, and the safety and the reliability of the electric vehicle are ensured.
The currently adopted battery pack voltage and temperature sampling mode has the following defects:
(1) the battery pack voltage and temperature sampling wire harness occupies a large space, the space utilization rate is low, and the volume energy density of the battery pack is reduced;
(2) the wiring harness of the battery pack voltage and temperature sampling lines is complex in arrangement and easy to intersect;
(3) need distinguish during the assembly, prolonged man-hour of installation, reduce work efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of a device for gathering laminate polymer battery module voltage and temperature can solve current group battery voltage and temperature sampling mode occupation space, complicacy and the technical problem that the utilization ratio is low.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a device for collecting voltage and temperature of a soft package battery module comprises integrated cover plates arranged at two ends of the module, a soft package battery cell is arranged in the module, positive and negative lugs of the soft package battery cell are arranged at two ends of the battery cell, the integrated cover plates comprise a front integrated cover plate, a rear integrated cover plate and a bottom plate,
the device comprises a front integrated cover plate, a rear integrated cover plate, a voltage sampling copper bar and a voltage sampling copper bar I, wherein the front integrated cover plate and the rear integrated cover plate are respectively provided with a front integrated cover plate and a rear integrated cover plate;
the PCB is fixed on the front integrated cover plate and is isolated from the voltage sampling copper bar in a high-voltage mode;
the temperature sensor is fixed on the front integrated cover plate so as to be tightly attached to a heat dissipation plate at the end part of the battery cell, and the temperature sensor is connected to the PCB through a lead wire so as to detect the real and effective temperature of the battery cell in real time;
the adapter socket and the wire pair board socket are fixed on the PCB;
the first voltage sampling copper bar is connected with the PCB through a nickel sheet and further connected with the adapter socket;
the voltage sampling copper bar II is used for connecting a voltage signal at the other end of the module to the PCB through a patch cord and further to a patch socket, and the voltage signal is collected to a wire pair board socket through the patch socket;
the wire collects the voltage collected by the voltage sampling copper bar, the temperature sampling signal collected by the temperature sensor and the signal on the adapter socket through the lead wire on the PCB board, and transmits the signals to the BMS as a transfer.
Further, the nickel sheet is strip-shaped sheet at the beginning, the two ends of the nickel sheet are nickel sheet connection PCB welding positions, the middle part of the nickel sheet is provided with a nickel sheet bending position I and a nickel sheet bending position II respectively, and the nickel sheet bending position I and the nickel sheet bending position II are convex and concave;
the first bent part of the nickel sheet penetrates into and is arranged at a hole correspondingly arranged on the PCB, so that the nickel sheet is combined with the PCB more tightly, the welding is convenient, and the limiting effect on the PCB is achieved;
the second bent part of the nickel sheet is clamped on the first voltage sampling copper bar, so that the nickel sheet and the first voltage sampling copper bar are combined more tightly, the welding area is increased, and the welding strength is improved;
and the first nickel sheet bending part and the second nickel sheet bending part are provided with fillets.
Furthermore, one end of the patch cord is connected with the second voltage sampling copper bar, the other end of the patch cord is provided with a patch plug, and the patch plug and the patch socket are inserted in place after the battery cell is assembled, so that the patch cord is connected with the patch socket.
Furthermore, a patch type fuse is arranged on a voltage acquisition loop of each voltage sampling copper bar, and is integrated on the PCB to protect the circuit.
The patch cord sets up in the outer wire casing of walking of bottom plate, avoids the interference of pencil and electric core.
Furthermore, one end of the patch cord is connected with a second voltage sampling copper bar through a chip terminal;
the chip terminal is connected with a second voltage sampling copper bar at the tail part of the module in a laser welding mode, and the surface coating of the chip terminal is consistent with that of the second voltage sampling copper bar.
Furthermore, the nickel plate is connected with the first voltage sampling copper bar through laser welding.
According to the above technical scheme, the utility model discloses a voltage and temperature signal that is used for gathering the device of laminate polymer battery module voltage and temperature will detect collects the socket of being qualified for the next round of competitions through setting up the PCB board and directly on BMS (BATTERYMNAGENCEMENT SYSTEM) with signal transmission, the packaging structure of one-piece is improved with the temperature at electric core both ends and voltage sampling device, can reflect the temperature variation in real time, the accuracy of temperature sampling has been improved, the space has still greatly been utilized simultaneously, reduce the module both ends phenomenon of being qualified for the next round of competitions simultaneously, temperature and voltage sampling equipment occupation space have been saved, the volumetric energy density of group battery has been improved, simplify voltage and temperature sampling line pencil, avoid the pencil alternately, shorten man-hour, and the work efficiency is improved, the assembly efficiency of whole module has also been improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an exploded schematic view of the structure from which the present invention is useful;
fig. 3 is a schematic diagram of the structure of the nickel sheet of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1 and fig. 2, the device for acquiring voltage and temperature of a pouch battery module according to this embodiment includes a front integrated cover plate 7, a rear integrated cover plate 7, a voltage sampling copper bar, a PCB 1, a socket, a plug, a patch cord 10, a patch type fuse, a chip terminal, and a nickel plate (or a composite copper bar).
The positive and negative electrode lugs of the soft-packaged battery cell are arranged at two ends of the battery cell, the copper bar is respectively fixed on the integrated cover plates at two ends of the module, and the PCB 1 is arranged in the insulating clamping groove of the integrated cover plate and is isolated from the copper bar at high voltage;
the following is a detailed description:
the integrated cover plate comprises a plurality of voltage sampling copper bars, namely a first voltage sampling copper bar 5 and a leading-out end copper bar, and a second voltage sampling copper bar 12 and a positive and negative end copper bar, wherein the first voltage sampling copper bar and the second voltage sampling copper bar are respectively fixed on the front and rear integrated cover plates 7 and 13 through limiting structures of the front integrated cover plate 7 and the rear integrated cover plate 13, the PCB 1 is provided with two positioning holes, and the PCB 1 is fixed on the integrated cover plate 7 through elastic buckles on the front integrated cover plate.
In order to measure the real and effective temperature data of the battery cell, the temperature sensor 6 is fixed on the integrated cover plate and is attached to the heat dissipation plate at the end part of the battery cell, and the temperature sensor 6 is connected to the PCB through a lead; temperature sensor 6 is fixed on integrated apron 7 in the front through limit structure on the integrated apron 7 in the front to closely laminate with electric core tip heating panel, temperature sensor 6 draws forth the wire and directly integrates on PCB board 1, the true effective temperature of real-time detection electric core.
For convenience of assembly, two sockets, a transfer socket 9 and a line-to-board socket 3 are arranged on a PCB 1, wherein the line-to-board socket 3 collects all voltage and temperature collected signals of the whole module, the transfer socket 9 at the tail part of the PCB 1 collects voltage signals of copper bars at the tail end of the module through a transfer wiring harness 10, a sheet type terminal 11 on the transfer wiring harness 10 is connected with each copper bar at the tail part of the module in a laser welding mode, and the surface plating layer of the sheet type terminal 11 is consistent with the surface plating layer of the copper bars;
the voltage sampling copper bar I5 is connected with the PCB 1 through a nickel sheet 4 and further connected with an adapter socket 9;
as shown in fig. 3, the nickel sheet 4 is initially strip-shaped and sheet-shaped, the two ends of the nickel sheet are nickel sheet connection PCB welding parts 41, the middle part of the nickel sheet connection PCB welding part is respectively provided with a nickel sheet bending part one 42 and a nickel sheet bending part two 43, and one of the nickel sheet bending part one 42 and the nickel sheet bending part two 43 is convex and concave;
the outlet end voltage sampling copper bar is connected with the PCB through the nickel sheet 4, the nickel sheet is provided with a bending part and a second-stage bending part, the PCB penetrates through the bending part of the nickel sheet and plays a role of limiting the PCB, the nickel sheet is more tightly attached to the PCB and the copper bar through the second-stage bending part of the nickel sheet, a welding area is increased, the overall welding strength is improved, and the integrated cover plate, the PCB, the copper bar and the battery cell are more firmly and tightly connected; the bent part 42 of the nickel sheet penetrates through the hole of the PCB 1, so that the nickel sheet 4 is combined with the PCB 1 more tightly, the welding is convenient, and the limiting effect on the PCB 1 is achieved; the nickel sheet second level department of bending 43 makes nickel sheet 4 and copper bar 5 combine inseparabler, increases welding area, improves welding strength, and the nickel sheet department of bending radius.
The wire pair board socket 3 is arranged on the PCB board 1, and the socket 3 collects the voltage collected by the voltage sampling copper bar, the temperature sampling signal collected by the temperature sensor 6 and the signal on the adapter socket 9 through a lead wire on the PCB board 1 and transmits the signals to a BMS (Battery management System) (BATTERY MANAGEMENT SYSTEM); each voltage acquisition loop is provided with a patch type fuse 2 which is integrated on the PCB 1 to protect the circuit;
the adapter plug 9 is fixed at the tail part of the PCB board 1 and is inserted into the adapter plug 8, and voltage signals of all copper bars on the integrated cover plate are collected. The patch cord 10 is connected to the adapter socket 9 on the PCB board 1 with voltage signal on a plurality of copper bars of the module other end, collect voltage signal through adapter socket 9 on socket 3, after electric core assembly finishes with adapter plug 8 and adapter socket 9 to inserting in place, patch cord 10 directly with PCB board 1 go up the adapter socket 9 and be connected, chip terminal 11 passes through the laser welding mode with copper bar 12 and is connected, adopt laser welding not only the welding firm, and effectively reduce the voltage drop between chip terminal 11 and copper bar 12.
The patch cord 10 sets up in the outer wire casing of bottom plate, avoids the interference of pencil and electric core. Make module both ends voltage and temperature acquisition device improve formula structure as an organic whole through the patch cord, make things convenient for the installation of electric core, improve module assembly efficiency, still greatly utilized the space simultaneously, improved the volume energy density of group battery and still improved the matched stack efficiency of whole module.
One end of the patch cord 10 is connected with a second voltage sampling copper bar 12 through a chip terminal 11;
the chip terminal 11 is the same as the surface coating materials of the copper bar 11 and the copper bar 7, and the welding effect is improved. The integrated cover plate 13 is provided with a wiring groove and a wire clamp for fixing a wire harness, so that the circuit is neat and simple. Pins on the socket 3, the socket 9 and the plug 8 are coated with hot melt adhesive for insulation treatment; wherein, all welding parts of device spout three proofings lacquer, avoid the welding department to oxidize, promote whole life-span.
The line-to-board socket 3 of the embodiment directly transmits signals to a BATTERY management system (BMS MANAGEMENT SYSTEM), the temperature and voltage sampling devices at two ends of the BATTERY core are improved into an integrated packaging structure, temperature changes can be reflected in real time, accuracy of temperature sampling is improved, meanwhile, space is greatly utilized, simultaneous line outgoing phenomena at two ends of a module are reduced, occupied space of the temperature and voltage sampling devices is saved, and volume energy density of a BATTERY pack is improved; and the assembly efficiency of the whole module is also improved.
The embodiment can greatly utilize the limited space of the module, and improves the volume energy density of the battery pack; the accuracy of temperature sampling is improved, the fixed scheduling problem of pencil has been reduced, module packaging efficiency has been promoted, and the whole life-span is promoted in welding position's the processing of spraying paint.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a device for gathering laminate polymer battery module voltage and temperature, is including setting up the integrated apron at the module both ends, including the laminate polymer battery core in the module, the positive negative pole ear of laminate polymer battery core arranges at the both ends of electric core, integrated apron includes preceding integrated apron (7), back integrated apron (13) and bottom plate (14), its characterized in that:
the device is characterized by further comprising a voltage sampling copper bar, wherein the voltage sampling copper bar comprises a first voltage sampling copper bar (5) and a second voltage sampling copper bar (12), the first voltage sampling copper bar (5) and the second voltage sampling copper bar (12) are respectively fixed on the front integrated cover plate (7) and the rear integrated cover plate (13), and the first voltage sampling copper bar (5) and the second voltage sampling copper bar (12) are connected with the positive electrode lug and the negative electrode lug of the soft package battery cell in a one-to-one correspondence manner;
the high-voltage sampling device is characterized by further comprising a PCB (1), wherein the PCB (1) is fixed on the front integrated cover plate (7) and is isolated from the voltage sampling copper bar in a high-voltage mode;
the temperature sensor (6) is fixed on the front integrated cover plate (7) and is tightly attached to a heat dissipation plate at the end part of the battery cell, and the temperature sensor (6) is connected to the PCB (1) through a lead wire to detect the real and effective temperature of the battery cell in real time;
the PCB further comprises an adapter socket (9) and a wire pair board socket (3) which are fixed on the PCB (1);
the voltage sampling copper bar I (5) is connected with the PCB (1) through a nickel sheet (4) and further connected with an adapter socket (9);
the voltage sampling copper bar II (12) connects the voltage signal at the other end of the module to the PCB (1) through the adapter cable (10) and then to the adapter socket (9), and the voltage signal is collected to the line-to-board socket (3) through the adapter socket (9);
the line pair board socket (3) collects the voltage collected by the voltage sampling copper bar, the temperature sampling signal collected by the temperature sensor (6) and the signal on the adapter socket (9) through a lead wire on the PCB board (1) and transmits the signals to the BMS as a relay.
2. The device for collecting the voltage and the temperature of the soft package battery module according to claim 1, is characterized in that:
the nickel sheet (4) is strip-shaped sheet at the beginning, the two ends of the nickel sheet are connected with the PCB welding part (41), the middle part of the nickel sheet is provided with a nickel sheet bending part I (42) and a nickel sheet bending part II (43), and one of the nickel sheet bending part I (42) and the nickel sheet bending part II (43) is convex and concave;
the first bent part (42) of the nickel sheet penetrates into and is arranged at a corresponding hole on the PCB (1), so that the nickel sheet (4) is combined with the PCB (1) more tightly, welding is facilitated, and the limiting effect on the PCB (1) is achieved;
the second bent part (43) of the nickel sheet is clamped on the first voltage sampling copper bar (5), so that the nickel sheet (4) and the first voltage sampling copper bar (5) are combined more tightly, the welding area is increased, and the welding strength is improved;
and the first nickel sheet bending part (42) and the second nickel sheet bending part (43) are provided with fillets.
3. The device for collecting the voltage and the temperature of the soft package battery module according to claim 1, is characterized in that: one end of the patch cord (10) is connected with the second voltage sampling copper bar (12), the other end of the patch cord is provided with the patch plug (8), and the patch plug (8) and the patch socket (9) are inserted in place after the battery cell is assembled, so that the patch cord (10) is connected with the patch socket (9).
4. The device for collecting the voltage and the temperature of the soft package battery module according to claim 1, is characterized in that: a patch type fuse (2) is arranged on a voltage acquisition loop of each voltage sampling copper bar, the patch type fuses (2) are integrated on the PCB (1), and a circuit is protected.
5. The device for collecting the voltage and the temperature of the soft package battery module according to claim 1, is characterized in that: the patch cord (10) is arranged in the wiring groove outside the bottom plate (14), so that interference between a wiring harness and the battery cell is avoided.
6. The device for collecting the voltage and the temperature of the soft package battery module according to claim 3, is characterized in that: one end of the patch cord (10) is connected with a second voltage sampling copper bar (12) through a sheet terminal (11);
the chip terminal (11) is connected with the second voltage sampling copper bar (12) at the tail part of the module in a laser welding mode, and the surface plating layer of the chip terminal (11) is consistent with the surface plating layer of the second voltage sampling copper bar (12).
7. The device for collecting the voltage and the temperature of the soft package battery module according to claim 3, is characterized in that: and the nickel sheet (4) is connected with the first voltage sampling copper bar (5) through laser welding.
8. The device for collecting the voltage and the temperature of the soft package battery module according to claim 3, is characterized in that: two positioning holes are formed in the PCB (1), and the PCB (1) is fixed on the integrated cover plate (7) by arranging an elastic buckle on the front integrated cover plate (7).
9. The device for collecting the voltage and the temperature of the soft package battery module according to claim 3, is characterized in that: and hot melt glue is respectively coated on the pins on the wire pair board socket (3), the adapter socket (9) and the adapter plug (8) for insulation treatment.
10. The device for collecting the voltage and the temperature of the soft package battery module according to claim 1, is characterized in that: the temperature sensor (6) is fixed on the front integrated cover plate (7) through a limiting structure arranged on the front integrated cover plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921697390.7U CN210607528U (en) | 2019-10-11 | 2019-10-11 | Device for collecting voltage and temperature of soft package battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921697390.7U CN210607528U (en) | 2019-10-11 | 2019-10-11 | Device for collecting voltage and temperature of soft package battery module |
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| CN210607528U true CN210607528U (en) | 2020-05-22 |
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| CN201921697390.7U Active CN210607528U (en) | 2019-10-11 | 2019-10-11 | Device for collecting voltage and temperature of soft package battery module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054144A (en) * | 2020-09-23 | 2020-12-08 | 上海兰钧新能源科技有限公司 | Soft package module and electric vehicle |
| CN112864536A (en) * | 2021-01-12 | 2021-05-28 | 东风汽车有限公司 | Electric automobile high voltage battery module connecting device and electric automobile high voltage battery module connection structure |
| CN113871739A (en) * | 2021-09-03 | 2021-12-31 | 上海智光电力技术有限公司 | Switching device and system of battery module and battery information acquisition control method |
| CN113871802A (en) * | 2021-09-10 | 2021-12-31 | 东莞市万连实业有限公司 | Copper bar connecting piece with novel voltage sampling points and manufacturing method thereof |
-
2019
- 2019-10-11 CN CN201921697390.7U patent/CN210607528U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054144A (en) * | 2020-09-23 | 2020-12-08 | 上海兰钧新能源科技有限公司 | Soft package module and electric vehicle |
| CN112864536A (en) * | 2021-01-12 | 2021-05-28 | 东风汽车有限公司 | Electric automobile high voltage battery module connecting device and electric automobile high voltage battery module connection structure |
| CN112864536B (en) * | 2021-01-12 | 2023-05-09 | 东风汽车有限公司 | High-voltage battery module connecting device and connecting structure of electric automobile |
| CN113871739A (en) * | 2021-09-03 | 2021-12-31 | 上海智光电力技术有限公司 | Switching device and system of battery module and battery information acquisition control method |
| CN113871739B (en) * | 2021-09-03 | 2024-03-29 | 上海智光电力技术有限公司 | Switching device and system of battery module and battery information acquisition control method |
| CN113871802A (en) * | 2021-09-10 | 2021-12-31 | 东莞市万连实业有限公司 | Copper bar connecting piece with novel voltage sampling points and manufacturing method thereof |
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