WO2024113949A1 - 信号采集组件及电池模组 - Google Patents
信号采集组件及电池模组 Download PDFInfo
- Publication number
- WO2024113949A1 WO2024113949A1 PCT/CN2023/112005 CN2023112005W WO2024113949A1 WO 2024113949 A1 WO2024113949 A1 WO 2024113949A1 CN 2023112005 W CN2023112005 W CN 2023112005W WO 2024113949 A1 WO2024113949 A1 WO 2024113949A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal acquisition
- circuit board
- temperature sensor
- acquisition component
- bracket
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
-
- 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
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
-
- 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
Definitions
- the present application relates to the technical field of power batteries, and in particular to a signal acquisition component and a battery module.
- the battery management system needs to sample and detect the voltage and temperature of the battery cell through the signal acquisition component.
- the distance between the temperature acquisition point and the circuit board in the signal acquisition component gradually becomes farther, resulting in an increase in the overall production cost of the signal acquisition component.
- the present application provides a signal acquisition component and a battery module, which can solve the problem of high manufacturing cost of the signal acquisition component when the temperature acquisition point is far away from the circuit board in the signal acquisition component.
- an embodiment of the present application provides a signal acquisition component, the signal acquisition component is used for a battery module, and the signal acquisition component includes:
- a busbar assembly is arranged on the bracket; the busbar assembly is used to electrically connect with the electrodes of the battery cells in the battery module;
- At least one first collection harness is provided with at least one temperature sensor, the temperature sensor is connected to the bus assembly, and one end of the first collection harness is electrically connected to the circuit board.
- an embodiment of the present application provides a battery module, comprising a plurality of battery cell units and a signal acquisition component as described in any one of the above items, wherein the signal acquisition component is electrically connected to the plurality of battery cell units.
- the signal acquisition component includes a bracket, a bus assembly, a circuit board and at least one first acquisition harness, wherein the bus assembly is arranged on the bracket, the bus assembly is used to electrically connect to the electrodes of the battery cells in the battery module, the circuit board is connected to the bracket, the circuit board includes a plurality of first voltage acquisition terminals electrically connected to the bus assembly, at least one temperature sensor is arranged on the first acquisition harness, the temperature sensor is connected to the bus assembly, and one end of the first acquisition harness is electrically connected to the circuit board.
- the present application sets a first acquisition harness for temperature acquisition, so that when the temperature acquisition point is far away from the circuit board, the first acquisition harness can be used as a supplementary harness for temperature acquisition without extending the circuit board to the corresponding temperature acquisition point, thereby helping to reduce the overall manufacturing cost of the signal acquisition component.
- FIG1 is a schematic diagram of the structure of a signal acquisition component provided in an embodiment of the present application.
- FIG2 is an enlarged structural schematic diagram of area A in FIG1 provided in an embodiment of the present application.
- FIG3 is a schematic diagram of a circuit board integrated structure provided in an embodiment of the present application.
- FIG4 is an enlarged structural schematic diagram of area B in FIG3 provided in an embodiment of the present application.
- FIG5 is a schematic diagram of another circuit board integrated structure provided in an embodiment of the present application.
- FIG. 6 is a schematic diagram of the structure of a battery module provided in an embodiment of the present application.
- connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements.
- connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements.
- a first feature being “above” or “below” a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact.
- a first feature being “above”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
- a first feature being “below”, “below” and “below” a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
- the embodiments of the present application provide a signal acquisition component and a battery module, which are described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.
- the signal acquisition component 100 includes a bracket 110.
- the bracket 110 is used to be placed on the top surface of the battery module 10 to separate other structures in the signal acquisition component 100 from the battery module 10. At the same time, it can also support other structures in the signal acquisition component 100 to ensure stable signal acquisition.
- the signal acquisition component 100 includes a busbar component 120, which is disposed on the bracket 110 and is used to be electrically connected to the electrodes of the battery cells in the battery module 10.
- the busbar component 120 includes a positive output busbar 121, a negative output busbar 122, and a plurality of first connection busbars 123, each of which is electrically connected to the electrodes of at least two battery cells, and the plurality of first connection busbars 123 connect the plurality of battery cells in series and parallel to form the battery module 10, the positive output busbar 121 is electrically connected to the battery cell at the positive output end of the battery module 10, and the negative output busbar 122 is electrically connected to the battery cell at the negative output end of the battery module 10.
- a mounting groove is provided on the bracket 110, and a through hole is provided at the bottom of the mounting groove to expose the electrodes of the battery cell.
- the busbar assembly 120 is provided in the mounting groove, and the busbar assembly 120 is provided in contact with the corresponding battery cell through the through hole and electrically connects multiple battery cells.
- a through hole is provided at the bottom of the mounting groove, and part of the bottom surface of the busbar assembly 120 can contact and connect with the end surface of the battery cell through the through hole, so that multiple battery cells can be electrically connected.
- the bracket 110 defines the position of the busbar assembly 120, which is conducive to preventing misalignment between the busbar assembly 120 and the battery cell, and helps to ensure the connection reliability between the busbar assembly 120 and the battery cell.
- the signal acquisition component 100 includes a circuit board 130, which is connected to the bracket 110.
- the circuit board 130 in the embodiment of the present application can adopt a flexible circuit board 130, so that the circuit board 130 can be bent according to the setting requirements to avoid affecting the connection between the bus assembly 120 and the battery module 10.
- a plurality of positioning posts can be protruded on the bracket 110, and positioning holes are formed at positions corresponding to the positioning posts on the circuit board 130.
- the positioning posts are passed through the positioning holes, and then the circuit board 130 and the bracket 110 are connected by hot riveting.
- the side of the circuit board 130 facing the bracket 110 can also be bonded to the bracket 110 to further improve the stability of the connection between the circuit board 130 and the bracket 110.
- the circuit board 130 includes a plurality of first voltage collection terminals 131, which are electrically connected to the bus assembly 120.
- the bus assembly 120 includes a positive output bus 121, a negative output bus 122, and a plurality of first connection busbars 123.
- the positive output bus 121, the negative output bus 122, and each first connection bus 123 are connected to a corresponding first voltage collection terminal 131 to monitor the voltage of each battery cell in the battery module 10.
- the circuit board 130 integrates the voltage signal of each battery cell in the battery module 10.
- the signal acquisition component 100 includes at least one first acquisition harness 140, on which at least one temperature sensor 150 is arranged, the temperature sensor 150 is connected to the bus assembly 120, and one end of the first acquisition harness 140 is electrically connected to the circuit board 130.
- the distance between the temperature acquisition in the middle area of the battery module 10 and the voltage acquisition on the circuit board 130 also increases.
- the number of temperature sensors 150 set on the first collection harness 140 can be adjusted according to actual design requirements; in addition, as the temperature collection position changes, the first collection harness 140 can be bent on the bus assembly 120 and the temperature sensor 150 can be set at the corresponding target position to meet the temperature monitoring requirements of different positions of the battery module 10.
- the signal acquisition component 100 includes a bracket 110, a bus assembly 120, a circuit board 130 and at least one first acquisition harness 140, wherein the bus assembly 120 is arranged on the bracket 110, the bus assembly 120 is used to be electrically connected to the electrodes of the battery cells in the battery module 10, the circuit board 130 is connected to the bracket 110, the circuit board 130 includes a plurality of first voltage acquisition terminals 131 electrically connected to the bus assembly 120, at least one temperature sensor 150 is arranged on the first acquisition harness 140, the temperature sensor 150 is connected to the bus assembly 120, and one end of the first acquisition harness 140 is electrically connected to the circuit board 130.
- the present application sets the first acquisition harness 140 for temperature acquisition, so that when the temperature acquisition point is far away from the circuit board 130, the first acquisition harness 140 can be used as a supplementary harness for temperature acquisition without extending the circuit board 130 to the corresponding temperature acquisition point, thereby helping to reduce the overall manufacturing cost of the signal acquisition component 100.
- At least one adapter connector 170 is provided on the circuit board 130, and the adapter connector 170 is electrically connected to the circuit board 130.
- a first adapter 141 is provided at one end of the first collection harness 140, and the first adapter 141 of each first collection harness 140 is respectively connected to one of the adapter connectors 170, so that the first collection harness 140 is electrically connected to the circuit board 130.
- the first adapter 141 and the adapter connector 170 can be connected by gold finger, so that the first acquisition harness 140 can be inserted into or removed from the adapter connector 170 through the first adapter 141, thereby facilitating the installation of the first acquisition harness 140.
- the circuit structure in the first adapter 141 and the corresponding adapter connector 170 different requirements for temperature acquisition can be met.
- one adapter connector 170 can be connected to only one first adapter connector 141, that is, only one socket is provided on one adapter connector 170, and it is connected to the first adapter connector 141 accordingly.
- one adapter connector 170 can be connected to multiple first adapter connectors 141 at the same time, that is, one adapter connector 170 is provided with multiple sockets at the same time, and can be connected to different first adapter connectors 141 respectively, so as to further improve the integration of the signal acquisition component 100.
- the socket on the adapter connector 170 can be arbitrarily adapted to the first adapter connector 141, so as to improve the connection flexibility between the first acquisition harness 140 and the adapter connector 170.
- the signal acquisition component 100 also includes an output connector 180, which is disposed on the circuit board 130 and is electrically connected to the circuit board 130, that is, the adapter connector 170 is electrically connected to the output connector 180 through the circuit board 130, so that the temperature information collected by the first acquisition harness 140 can be transmitted to the circuit board 130 through the adapter connector 170, and then transmitted to the output connector 180 through the circuit board 130.
- the output connector 180 is used to connect to an external monitoring device to output the signal collected by the signal acquisition component 100 to the monitoring device. Since the circuit board 130 integrates both temperature information and voltage information, one output connector 180 can output both temperature information and voltage information at the same time, thereby improving the integration of the signal acquisition component 100.
- the bracket 110 has two first sides 111 opposite to each other along the first direction X, and two second sides 112 opposite to each other along the second direction Y, the circuit board 130 is arranged on the second side 112 of the bracket 110, and the circuit board 130 extends along the first direction X, and a plurality of first voltage collection terminals 131 are arranged in sequence and spaced apart along the first direction X.
- the circuit board 130 is arranged on the side of the bracket 110, and the bracket 110 is arranged on the top surface of the battery module 10, and the busbar assembly 120 is arranged on the bracket 110, that is, the circuit board 130 is arranged on the side of the battery module 10, so that the circuit board 130 can be prevented from interfering with the welding area of the busbar assembly 120 and the battery module 10, thereby facilitating the signal collection assembly 100 to collect the voltage signal of the battery module 10.
- the battery module 10 includes a plurality of battery cell units 310, the plurality of battery cell units 310 are arranged in parallel along the first direction X, each battery cell unit 310 includes at least two battery cells arranged in parallel along the second direction Y, a plurality of first connecting busbars 123 are arranged in parallel along the first direction X, each first connecting busbar 123 is connected in parallel to the battery cells arranged in parallel along the second direction Y in the battery cell unit 310, and a plurality of first connecting busbars 123 are connected in series to the battery cells arranged in parallel along the first direction X.
- each first voltage collection terminal 131 is electrically connected to the corresponding first connecting busbar 123, so that each first voltage collection terminal 131 can simultaneously monitor the voltages of a plurality of battery cells in a battery cell unit 310, thereby realizing the monitoring of the voltages of each battery cell in the battery module 10.
- the circuit board 130 extends to the first side 111 of the bracket 110 along the first direction X, and forms an output portion 132 on the first side 111 of the bracket 110, and the adapter connector 170 and the output connector 180 are arranged on the output portion 132.
- the portion of the circuit board 130 located on the second side 112 is mainly used to collect voltage signals, by extending the circuit board 130 to the first side 111 and forming the output portion 132, it is helpful to integrate the adapter connector 170 and the output connector 180 on the circuit board 130; at the same time, the first side 111 of the bracket 110 corresponds to the positive output bus 121 and the negative output bus 122, that is, the first side 111 of the bracket 110 corresponds to the positive output terminal battery cell and the negative output terminal battery cell of the battery module 10, and arranging the output connector 180 on the first side 111 also helps the output design of the signal collected by the signal acquisition component 100.
- the signal acquisition assembly 100 includes two circuit boards 130, the two circuit boards 130 are respectively arranged on the second side 112 of the bracket 110 along the second direction Y, and the output parts 132 of the two circuit boards 130 are located on the same side of the bracket 110.
- the battery module 10 can be divided into two sub-modules 300, and the bus assembly 120 further includes a second connecting bus 124.
- the two sub-modules 300 are arranged in parallel along the second direction Y and connected in series through the second connecting bus 124, and each sub-module 300 includes a plurality of battery cell units 310 arranged in parallel along the first direction X.
- the first voltage acquisition terminal 131 on each circuit board 130 can respectively monitor the voltage signal of the battery cell in the corresponding sub-module 300. At the same time, it can also avoid the circuit board 130 from interfering with the welding area between the bus assembly 120 and the corresponding sub-module 300, thereby facilitating the signal acquisition assembly 100 to collect the voltage signal of the battery module 10.
- one end of one of the sub-modules 300 is the positive output end of the battery module 10, and one end of the other sub-module 300 is the negative output end of the battery module 10.
- the positive output end and the negative output end of the battery module 10 can be located on the same side of the bracket 110, so that the output parts 132 of the two circuit boards 130 can be set on the same side of the bracket 110, so as to facilitate the overall design of the signal output of the battery module 10, and also help to simplify the connection between the signal acquisition component 100 and the external monitoring equipment.
- the signal acquisition component 100 includes a reinforcing plate 190, which is located between the output portion 132 and the first side 111 of the bracket 110.
- the reinforcing plate 190 is connected to the bracket 110, and the output portion 132 of the circuit board 130 is mounted on the reinforcing plate 190. Since the output connector 180 and the adapter connector 170 need to be welded on the output portion 132 of the circuit board 130 to achieve the integrated integration of the signal acquisition component 100, and in order to facilitate the structural design of the circuit board 130, the circuit board 130 needs to have a certain degree of bendability.
- the output portion 132 of the circuit board 130 can be supported to a certain extent, so as to ensure the structural stability of the circuit board 130 relative to the bracket 110, thereby facilitating the stability of signal acquisition of the signal acquisition component 100.
- a plurality of positioning posts can be protruded from the first side 111 of the bracket 110, and positioning holes are formed at positions corresponding to the positioning posts on the reinforcing plate 190.
- the reinforcing plate 190 is installed on the bracket 110, the positioning posts are passed through the positioning holes, and then the reinforcing plate 190 and the bracket 110 are connected by hot riveting.
- the side of the reinforcing plate 190 facing the bracket 110 can also be bonded to the bracket 110 to further improve the stability of the connection between the reinforcing plate 190 and the bracket 110, thereby enhancing the connection stability between the circuit board 130 and the bracket 110 as a whole.
- the circuit boards 130 distributed on both sides of the bracket 110 can only monitor the voltage information of the sub-modules 300 on the corresponding two sides, but cannot monitor the voltage information of the sub-modules 300 in the middle area.
- the signal acquisition component 100 can also include at least one second acquisition harness 160, one end of the second acquisition harness 160 is provided with a second adapter 161, each second adapter 161 of the second acquisition harness 160 is respectively connected to one of the adapter connectors 170, and the second acquisition harness 160 includes a plurality of second voltage acquisition terminals 162, and the plurality of second voltage acquisition terminals 162 are electrically connected to the busbar component 120.
- the voltage signal collected on the second collection harness 160 can also be integrated on the circuit board 130 and then output from the same output connector 180 to achieve integrated integration of the voltage signal and the temperature signal.
- the second acquisition harness 160 and the first acquisition harness 140 can be the same acquisition harness, that is, the first acquisition harness 140 is provided with a second voltage acquisition terminal 162 and a temperature sensor 150 to monitor the voltage signal and the temperature signal at the same time.
- the number of acquisition points on one acquisition harness increases and the corresponding circuit structure is complex, the number of acquisition harnesses can be reduced, thereby reducing the area occupied by the adapter connector 170 on the output part 132 to improve the integration of the circuit board 130.
- the signal acquisition component 100 includes a heat conductive sheet 200, one end of which is connected to the temperature sensor 150 on the first acquisition harness 140, and the other end of which is welded to the bus assembly 120. Since the cooling structure of the battery module 10 is arranged on both sides of the battery core, the heat generated by the battery module 10 is mainly concentrated at the top, and the top electrode of the battery module 10 is connected to the bus assembly 120, so that the heat generated by the battery module 10 is transferred to the heat conductive sheet 200 through the bus assembly 120, and then transferred to the temperature sensor 150 by the heat conductive sheet 200.
- the temperature sensor 150 monitors the temperature information, and converts the temperature information into a voltage signal and transmits it to the circuit board 130, and then outputs it through the output connector 180.
- the temperature sensor 150 By setting the heat conductive sheet 200 between the temperature sensor 150 and the bus assembly 120 and setting the temperature sensor 150 on the first collection harness 140, compared with directly attaching the temperature sensor 150 to the bus assembly 120, it helps to improve the setting flexibility of the temperature sensor 150 and also helps the transmission design of the temperature signal.
- a mounting hole 210 is provided on the heat conductive sheet 200 at a position corresponding to the temperature sensor 150, and the temperature sensor 150 is located in the mounting hole 210 and connected to the heat conductive sheet 200.
- the heat generated by the battery module 10 can be transmitted to the temperature sensor 150 through the surrounding of the mounting hole 210, which helps the temperature sensor 150 to monitor the temperature information.
- setting the temperature sensor 150 in the mounting hole 210 of the heat conductive sheet 200 also helps to locate the location of the temperature sensor 150.
- the connection stability between the temperature sensor 150 and the heat conductive sheet 200 can be improved, and the stability of the temperature signal acquisition by the temperature sensor 150 can be further improved.
- a protective portion 230 is convexly provided on the side of the heat conductive sheet 200 away from the bus assembly 120, and the protective portion 230 extends along the edge of the mounting hole 210. Since the mounting hole 210 on the heat conductive sheet 200 penetrates the heat conductive sheet 200 along the thickness direction of the heat conductive sheet 200, the surface of the temperature sensor 150 is exposed when it is installed in the mounting hole 210. When the signal acquisition component 100 is installed in the battery module 10, other structural parts in the battery module 10 may squeeze the temperature sensor 150, or even damage the temperature sensor 150, affecting the normal use of the temperature sensor 150.
- the protective portion 230 By providing the protective portion 230 on the side of the heat conductive sheet 200 away from the bus assembly 120, the protective portion 230 can provide a certain degree of protection for the temperature sensor 150, thereby reducing the risk of damage to the temperature sensor 150 due to squeezing.
- the protective portion 230 is located on opposite sides of the temperature sensor 150.
- the size of the temperature sensor 150 needs to be less than or equal to the size of the mounting hole 210.
- the protective portion 230 is arranged around the temperature sensor 150 along the edge of the mounting hole 210, that is, the protective portion 230 fully surrounds the temperature sensor 150 along the edge of the mounting hole 210 to provide all-round protection for the temperature sensor 150, further reduce the risk of damage to the temperature sensor 150 due to squeezing, and improve the stability of temperature acquisition.
- the temperature sensor 150 passes through the mounting hole 210, and the end of the protective portion 230 away from the heat conductive sheet 200 extends toward the mounting hole 210 to the side of the temperature sensor 150 away from the bus assembly 120.
- the thickness of the heat conductive sheet 200 used needs to be set to be relatively thin.
- the temperature sensor 150 may protrude from the surface of the heat conductive sheet 200.
- the protective portion 230 By extending the end of the protective portion 230 away from the heat conductive sheet 200 toward the mounting hole 210 to the side of the temperature sensor 150 away from the bus assembly 120, the protective portion 230 can simultaneously protect the upper surface of the temperature sensor 150, so as to further reduce the risk of damage to the temperature sensor 150 due to extrusion.
- the thickness of the temperature sensor 150 is greater than the depth of the mounting hole 210, the temperature sensor 150 passes through the mounting hole 210 and abuts against the protective part 230, and the material used for the protective part 230 is a heat conductive material.
- the protective part 230 on the heat conductive sheet 200 can be directly connected with the temperature sensor 150 to ensure the connection stability of the temperature sensor 150, and at the same time, the equivalent contact area between the temperature sensor 150 and the heat conductive sheet 200 can be increased, which helps the heat generated by the battery module 10 to be transferred to the heat conductive sheet 200 through the bus assembly 120, and then the heat conductive sheet 200 is transferred to the protective part 230, and then transferred to the temperature sensor 150 through the protective part 230, thereby helping to improve the monitoring effect of the temperature sensor 150.
- the material of the side of the temperature sensor 150 away from the bus assembly 120 is a flexible material.
- the thickness of the temperature sensor 150 and the thickness of the protective portion 230 need to be accurately designed, thereby improving the processing accuracy requirements for the heat conductive sheet 200.
- the temperature sensor 150 by setting the material of the side of the temperature sensor 150 away from the bus assembly 120 to a flexible material, when the temperature sensor 150 abuts against the protective portion 230, the temperature sensor 150 can be squeezed to a certain extent according to the requirements, so as to reduce the manufacturing accuracy of the heat conductive sheet 200 and improve the applicability of the heat conductive sheet 200.
- the gap may be filled with thermal conductive glue 220.
- the filling of the thermal conductive glue 220 can make the connection between the temperature sensor 150 and the thermal conductive sheet 200 more stable, thereby improving the stability of temperature acquisition; on the other hand, the filling of the thermal conductive glue 220 can further increase the effective contact area between the temperature sensor 150 and the thermal conductive sheet 200, thereby helping to improve the heat conduction between the thermal conductive sheet 200 and the temperature sensor 150, and further improve the temperature acquisition effect of the signal acquisition component 100.
- an embodiment of the present application also provides a battery module, which includes a signal acquisition component.
- the specific structure of the signal acquisition component refers to the above embodiment. Since the battery module adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.
- the battery module 10 includes a plurality of battery cell units 310 and a signal acquisition component 100.
- the signal acquisition component 100 is electrically connected to the plurality of battery cell units 310 to collect voltage signals and temperature signals in the battery module 10, and output the collected signals to a monitoring device to monitor the working status of the battery module 10 in real time to ensure the safe use of the battery module 10.
- the signal acquisition component 100 includes a bracket 110, a bus assembly 120, a circuit board 130 and at least one acquisition harness, wherein the bus assembly 120 is arranged on the bracket 110, the bus assembly 120 is used to be electrically connected to the electrodes of the battery cell unit 310 in the battery module 10, the circuit board 130 is connected to the bracket 110, the circuit board 130 includes a plurality of first voltage acquisition terminals 131 electrically connected to the bus assembly 120, at least one temperature sensor 150 is arranged on the first acquisition harness 140, the temperature sensor 150 is connected to the bus assembly 120, and one end of the first acquisition harness 140 is electrically connected to the circuit board 130.
- the first acquisition harness 140 can be used as a supplementary harness for temperature acquisition without extending the circuit board 130 to the corresponding temperature acquisition point, thereby helping to reduce the overall manufacturing cost of the signal acquisition component 100.
- the battery module 10 includes at least two sub-modules 300 arranged in parallel along the second direction Y, each sub-module 300 includes a plurality of battery cells 310 arranged in parallel along the first direction X, and each battery cell 310 includes at least two battery cells arranged in parallel along the second direction Y.
- the circuit board 130 of the signal acquisition component 100 is arranged on opposite sides of the battery module 10 along the second direction Y, and the first voltage acquisition terminal 131 on the circuit board 130 is electrically connected to the battery cells 310 of the adjacent sub-modules 300 in a one-to-one correspondence, that is, the first voltage acquisition terminal 131 on the circuit board 130 is used to collect the voltage of the battery cells 310 in the sub-modules 300 located on opposite sides in the second direction Y in the battery module 10, so as to avoid the circuit board 130 from interfering with the welding area between the busbar component 120 and the corresponding sub-module 300 in the signal acquisition component 100.
- the battery module 10 includes at least three sub-modules 300 arranged in parallel along the second direction Y, each sub-module 300 includes a plurality of battery cell units 310 arranged in parallel along the first direction X, and each battery cell unit 310 includes at least two battery cells arranged in parallel along the second direction Y.
- the circuit boards 130 distributed on opposite sides of the battery module 10 can only monitor the voltage information of the sub-modules 300 on the corresponding two sides, but cannot monitor the voltage information of the sub-modules 300 in the middle area.
- the signal acquisition component 100 can also include at least one second acquisition harness 160, the second acquisition harness 160 is located on the top surface of the battery module 10, and the second voltage acquisition terminal 162 of the second acquisition harness 160 is electrically connected to the battery cell unit 310 of the corresponding sub-module 300 through the bus assembly 120.
- a second adapter 161 is provided at one end of the second acquisition harness 160, and the second adapter 161 of each second acquisition harness 160 is respectively connected to one of the adapter connectors 170 of the signal acquisition component 100.
- the voltage signal collected on the second acquisition harness 160 can also be integrated on the circuit board 130, and then output from the same output connector 180, so as to realize the integrated integration of the voltage signal and the temperature signal.
- the multiple sub-modules 300 of the battery module 10 in the embodiment of the present application are connected through the busbar assembly 120, and the busbar assembly includes a positive output busbar 121, a negative output busbar 122, a first connecting busbar 123 and a second connecting busbar 124.
- the positive output busbar 121 is electrically connected to the battery cell unit 310 located at the positive output end
- the negative output busbar 122 is electrically connected to the battery cell unit 310 located at the negative output end
- the first connecting busbar 123 is electrically connected to the battery cell unit 310 in the sub-module 300
- the second connecting busbar 124 is electrically connected to two adjacent sub-modules 300.
- the entire battery module 10 has a positive output terminal and a negative output terminal, and the positive output terminal and the negative output terminal are respectively located on the submodules 300 distributed on opposite sides along the second direction Y, wherein the battery cell 310 at one end of one submodule 300 is the positive output terminal, and the battery cell 310 at one end of another submodule 300 is the negative output terminal.
- the positive output bus 121 is electrically connected to the battery cell 310 at the positive output terminal to output the collected information of the corresponding battery cell 310;
- the negative output bus 122 is electrically connected to the battery cell 310 at the negative output terminal to output the collected information of the corresponding battery cell 310.
- the multiple battery cells 310 in each sub-module 300 are connected in series and parallel through the first connecting bus 123, that is, the first connecting bus 123 is used to connect the multiple battery cells of a battery cell unit 310 in a sub-module 300 in parallel, and the first connecting bus 123 connects two adjacent battery cells 310 in a sub-module 300 in series; the two adjacent sub-modules 300 are connected in series through the second connecting bus 124, so as to form a battery module 10.
- the design of the connection method between the bus assembly 120 and the sub-module 300 can meet the design requirements of different battery modules 10.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
本申请公开了一种信号采集组件及电池模组。信号采集组件包括支架、汇流排组件、电路板和至少一条第一采集线束,汇流排组件设置在支架上,电路板与支架连接,电路板包括多个与汇流排组件电连接的第一电压采集端子,第一采集线束上设置有至少一个温度传感器,温度传感器与汇流排组件连接,第一采集线束的一端与电路板电连接。
Description
本申请要求在2022年12月2日提交中国专利局、申请号分别为202223282803.X和202223242606.5的中国专利申请的优先权,以上申请的全部内容通过引用结合在本申请中。
本申请涉及动力电池技术领域,尤其涉及一种信号采集组件及电池模组。
随着电池技术的迅猛发展,对电池数据采样的要求日趋严格,并需要对电池模组的电压以及温度进行实时监控及采样。在电池模组内,电池管理系统需要通过信号采集组件对电芯的电压及温度等信息进行采样检测,随着电池模组中电芯数量的逐渐增加,温度采集点与信号采集组件中电路板之间的距离逐渐变远,从而导致信号采集组件整体的制作成本增加。
本申请提供一种信号采集组件及电池模组,可以解决温度采集点与信号采集组件中电路板距离较远时信号采集组件制作成本较高的问题。
为达此目的,本申请采用以下技术方案:
第一方面,本申请的实施例提供一种信号采集组件,所述信号采集组件用于电池模组,所述信号采集组件包括:
支架;
汇流排组件,设置在所述支架上;所述汇流排组件用于与所述电池模组中电芯的电极电连接;
电路板,与所述支架连接;所述电路板包括多个第一电压采集端子,多个所述第一电压采集端子与所述汇流排组件电连接;
至少一条第一采集线束,所述第一采集线束上设置有至少一个温度传感器,所述温度传感器与所述汇流排组件连接,所述第一采集线束的一端与所述电路板电连接。
第二方面,本申请的实施例提供一种电池模组,包括多个电芯单元以及上述任一项所述的信号采集组件,所述信号采集组件与所述多个电芯单元电连接。
本申请的有益效果:
本申请实施例中信号采集组件包括支架、汇流排组件、电路板和至少一条第一采集线束,其中,汇流排组件设置在支架上,汇流排组件用于与电池模组中电芯的电极电连接,电路板与支架连接,电路板包括多个与汇流排组件电连接的第一电压采集端子,第一采集线束上设置有至少一个温度传感器,温度传感器与汇流排组件连接,第一采集线束的一端与电路板电连接。本申请通过设置用于温度采集的第一采集线束,使得当温度采集点与电路板的距离较远时,第一采集线束能够作为温度采集的补充线束,而无需将电路板延伸至对应的温度采集点,从而有助于降低信号采集组件整体的制作成本。
图1是本申请实施例提供的一种信号采集组件的结构示意图;
图2是本申请实施例提供的图1中A区域的放大结构示意图;
图3是本申请实施例提供的一种电路板集成结构示意图;
图4是本申请实施例提供的图3中B区域的放大结构示意图;
图5是本申请实施例提供的另一种电路板集成结构示意图;
图6是本申请实施例提供的一种电池模组的结构示意图。
附图标记说明:
10,电池模组;100,信号采集组件;110,支架;111,第一侧;112,第二侧;120,汇流排组件;121,正极输出汇流排;122,负极输出汇流排;123,第一连接汇流排;124,第二连接汇流排;130,电路板;131,第一电压采集端子;132,输出部;140,第一采集线束;141,第一转接头;150,温度传感器;160,第二采集线束;161,第二转接头;162,第二电压采集端子;170,转接连接器;180,输出连接器;190,增强板;200,导热片;210,安装孔;220,导热胶;230,防护部;X,第一方向;Y,第二方向;300,子模组;310,电芯单元。
在本申请的描述中,除非另有明确的规定和限定,术语“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,可以是机械连接,也可以是电连接,可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请的描述中,除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一特征和第二特征直接接触,也可以包括第一特征和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。
本申请实施例提供一种信号采集组件及电池模组,以下分别进行详细说明。需要说明的是,以下实施例的描述顺序不作为对实施例优选顺序的限定。
首先,本申请实施例提供一种信号采集组件,如图1和图6所示,信号采集组件100包括支架110,支架110用于放置在电池模组10的顶面,以将信号采集组件100中的其他结构与电池模组10隔开,同时也能够对信号采集组件100中的其他结构进行支撑,保证信号采集的稳定进行。
信号采集组件100包括汇流排组件120,汇流排组件120设置在支架110上,且汇流排组件120用于与电池模组10中电芯的电极电连接。其中,汇流排组件120包括正极输出汇流排121、负极输出汇流排122以及多个第一连接汇流排123,每个第一连接汇流排123至少与两个电芯的电极电连接,多个第一连接汇流排123则将多个电芯进行串并联连接,以形成电池模组10,正极输出汇流排121与电池模组10中位于正极输出端的电芯电连接,负极输出汇流排122与电池模组10中位于负极输出端的电芯电连接。
需要说明的是,支架110上设置有安装槽,安装槽的底部开设有通孔,以露出电芯的电极。汇流排组件120设置在安装槽内,汇流排组件120通过通孔和对应的电芯接触设置并将多个电芯电连接。通过在支架110上设置安装槽,从而能够将汇流排组件120放入安装槽中,实现了汇流排组件120的定位安装。在安装槽的底部开设通孔,汇流排组件120的部分底面能够通过通孔和电芯的端面接触并连接,从而能够将多个电芯进行电连接。支架110限定了汇流排组件120的位置,从而有利于防止汇流排组件120和电芯之间发生错位,有助于保证汇流排组件120和电芯的连接可靠性。
如图3和图4所示,信号采集组件100包括电路板130,电路板130与支架110连接,为保证电路板130设置位置的灵活性,本申请实施例中的电路板130可以采用柔性电路板130,使得电路板130能够根据设置需求进行弯折,以避免对汇流排组件120与电池模组10之间的连接产生影响。
其中,支架110上能够凸设多个定位柱,电路板130上对应定位柱的位置则形成定位孔。在将电路板130安装在支架110上时,使定位柱穿过定位孔,然后通过热铆的方式实现电路板130与支架110的连接。同时,电路板130面向支架110的一侧还能够与支架110进行粘接,以进一步改善电路板130与支架110连接的稳定性。
电路板130包括多个第一电压采集端子131,多个第一电压采集端子131与汇流排组件120电连接。其中,汇流排组件120包括正极输出汇流排121、负极输出汇流排122以及多个第一连接汇流排123,正极输出汇流排121、负极输出汇流排122以及每个第一连接汇流排123均对应连接一个第一电压采集端子131,以对电池模组10中每个电芯的电压进行监测。也就是说,电路板130上集成有电池模组10中每个电芯的电压信号。
信号采集组件100包括至少一条第一采集线束140,第一采集线束140上设置有至少一个温度传感器150,温度传感器150与汇流排组件120连接,第一采集线束140的一端与电路板130电连接。随着电池模组10包含的电芯数量的增多,对于电池模组10中间区域的温度采集与电路板130上电压采集的距离也随之增大,通过在汇流排组件120上设置第一采集线束140,并在第一采集线束140上设置温度传感器150,然后将第一采集线束140电连接在电路板130上,使得温度传感器150采集的温度信息能够通过第一采集线束140传输至电路板130上,从而实现温度信息与电压信息在电路板130上的一体化集成。
其中,第一采集线束140上设置的温度传感器150的数量能够根据实际设计需求进行调整;此外,随着温度采集位置的改变,第一采集线束140能够在汇流排组件120上进行弯折,并在对应的目标位置设置温度传感器150,以满足电池模组10不同位置温度监测的需求。
本申请实施例中信号采集组件100包括支架110、汇流排组件120、电路板130和至少一条第一采集线束140,其中,汇流排组件120设置在支架110上,汇流排组件120用于与电池模组10中电芯的电极电连接,电路板130与支架110连接,电路板130包括多个与汇流排组件120电连接的第一电压采集端子131,第一采集线束140上设置有至少一个温度传感器150,温度传感器150与汇流排组件120连接,第一采集线束140的一端与电路板130电连接。本申请通过设置用于温度采集的第一采集线束140,使得当温度采集点与电路板130的距离较远时,第一采集线束140能够作为温度采集的补充线束,而无需将电路板130延伸至对应的温度采集点,从而有助于降低信号采集组件100整体的制作成本。
可选的,电路板130上设置有至少一个转接连接器170,转接连接器170与电路板130电连接,第一采集线束140的一端设置有第一转接头141,每条第一采集线束140的第一转接头141分别与其中一个转接连接器170连接,以使第一采集线束140与电路板130电连接。通过在电路板130上设置转接连接器170,使第一采集线束140采集的温度信息能够通过第一转接头141传输至转接连接器170,再通过转接连接器170传输至电路板130。
其中,第一转接头141与转接连接器170能够采用金手指连接的方式,以便于第一采集线束140通过第一转接头141插入转接连接器170或者从转接连接器170中拔出,从而有助于第一采集线束140的安装。通过对第一转接头141以及对应转接连接器170中电路结构的设计,即可实现对温度采集的不同需求。
需要说明的是,一个转接连接器170可以仅与一个第一转接头141连接,即一个转接连接器170上只设置有一个插口,且与第一转接头141对应连接。或者,一个转接连接器170能够同时与多个第一转接头141连接,即一个转接连接器170上同时设置有多个插口,可分别与不同的第一转接头141连接,以进一步提高信号采集组件100的集成度。其中,当一个转接连接器170上设置有多个插口,且每条第一采集线束140上的电路结构相同时,转接连接器170上的插口能够与第一转接头141任意适配,以改善第一采集线束140与转接连接器170的连接灵活性。
信号采集组件100还包括输出连接器180,输出连接器180设置在电路板130上,输出连接器180与电路板130电连接,即转接连接器170通过电路板130与输出连接器180电连接,使第一采集线束140采集的温度信息能够通过转接连接器170传输至电路板130,然后通过电路板130传输至输出连接器180。其中,输出连接器180用于与外部监测设备连接,以将信号采集组件100采集的信号输出至监测设备。由于电路板130上同时集成有温度信息和电压信息,使得一个输出连接器180能够同时输出温度信息和电压信息,从而提高信号采集组件100的集成度。
可选的,支架110具有沿第一方向X相对的两个第一侧111,以及沿第二方向Y相对的两个第二侧112,电路板130设置在支架110的第二侧112,且电路板130沿第一方向X延伸,多个第一电压采集端子131沿第一方向X依次间隔设置。即电路板130设置在支架110的侧边,而支架110设置在电池模组10的顶面,汇流排组件120设置在支架110上,也就是说电路板130设置在电池模组10的侧边,从而能够避免电路板130对汇流排组件120与电池模组10的焊接区域产生干扰,从而有助于信号采集组件100对电池模组10电压信号的采集。
需要说明的是,电池模组10包括多个电芯单元310,多个电芯单元310沿第一方向X并列设置,每个电芯单元310包括至少两个沿第二方向Y并列设置的电芯,多个第一连接汇流排123沿第一方向X并列设置,每个第一连接汇流排123并联连接电芯单元310中沿第二方向Y并列设置的电芯,多个第一连接汇流排123则串联连接沿第一方向X并列设置的电芯。通过将多个第一电压采集端子131沿第一方向X依次间隔设置,使每个第一电压采集端子131与对应的第一连接汇流排123电连接,从而使得每个第一电压采集端子131能够同时监测一个电芯单元310中的多个电芯的电压,进而实现对电池模组10各电芯电压的监测。
可选的,电路板130沿第一方向X延伸至支架110的第一侧111,并在支架110的第一侧111形成输出部132,转接连接器170和输出连接器180设置在输出部132上。由于电路板130位于第二侧112的部分主要用于采集电压信号,通过将电路板130延伸至第一侧111并形成输出部132,有助于转接连接器170和输出连接器180在电路板130上的集成设计;同时,支架110的第一侧111与正极输出汇流排121和负极输出汇流排122相对应,即支架110的第一侧111与电池模组10的正极输出端电芯和负极输出端电芯相对应,将输出连接器180设置在第一侧111也有助于信号采集组件100所采集的信号的输出设计。
在一些实施例中,信号采集组件100包括两个电路板130,两个电路板130沿第二方向Y分别设置在支架110的第二侧112,两个电路板130的输出部132位于支架110的同一侧。在对电池模组10进行串并联组装时,能够将电池模组10划分为两个子模组300,汇流排组件120则还包括第二连接汇流排124,两个子模组300沿第二方向Y并列设置且通过第二连接汇流排124串联连接,每个子模组300则包括多个沿第一方向X并列设置的电芯单元310。通过将两个电路板130分别设置在支架110的两个相对的第二侧112,使得每个电路板130上的第一电压采集端子131分别监测对应子模组300中电芯的电压信号,同时,也能够避免电路板130对汇流排组件120与对应子模组300的焊接区域产生干扰,进而有助于信号采集组件100对电池模组10电压信号的采集。
需要说明的是,由于两个子模组300串联连接,则其中一个子模组300的一端为电池模组10的正极输出端,另一个子模组300的一端为电池模组10的负极输出端,通过对两个子模组300中电芯单元310的连接设计,能够使电池模组10的正极输出端和负极输出端位于支架110的同一侧,从而能够将两个电路板130的输出部132设置在支架110的同一侧,以便于电池模组10信号输出的整体设计,同时也有助于简化信号采集组件100与外部监测设备的连接。
在另一些实施例中,信号采集组件100包括增强板190,增强板190位于输出部132与支架110的第一侧111之间,增强板190与支架110连接,电路板130的输出部132则安装在增强板190上。由于电路板130的输出部132上需要焊接输出连接器180以及转接连接器170,以实现信号采集组件100的一体化集成,同时为了便于电路板130的结构设计,又需要使电路板130具有一定的可弯折性,通过在输出部132与支架110的第一侧111之间设置增强板190,能够对电路板130的输出部132起到一定的支撑作用,以保证电路板130相对支架110的结构稳定性,从而有助于信号采集组件100信号采集的稳定性。
其中,支架110的第一侧111能够凸设多个定位柱,增强板190上对应定位柱的位置则形成定位孔。在将增强板190安装在支架110上时,使定位柱穿过定位孔,然后通过热铆的方式实现增强板190与支架110的连接。同时,增强板190面向支架110的一侧还能够与支架110进行粘接,以进一步改善增强板190与支架110连接的稳定性,从而增强电路板130整体与支架110的连接稳定性。
在又一些实施例中,如图5所示,当电池模组10由多个沿第二方向Y并列设置且串联连接的子模组300组成时,分布在支架110两侧的电路板130只能对相应两侧的子模组300的电压信息进行监测,而无法对中间区域的子模组300的电压信息进行监测。对此,信号采集组件100还能够包括至少一条第二采集线束160,第二采集线束160的一端设置有第二转接头161,每条第二采集线束160的第二转接头161分别与其中一个转接连接器170连接,第二采集线束160包括多个第二电压采集端子162,多个第二电压采集端子162与汇流排组件120电连接。通过在第二采集线束160的一端设置第二转接头161,并将第二转接头161与转接连接器170连接,同样能够将第二采集线束160上采集的电压信号集成在电路板130上,然后从同一个输出连接器180输出,以实现电压信号与温度信号的一体化集成。
需要说明的是,第二采集线束160与第一采集线束140能够为同一条采集线束,即第一采集线束140上同时设置有第二电压采集端子162和温度传感器150,以同时对电压信号和温度信号进行监测,此时,虽然一条采集线束上的采集点增多,对应的电路结构复杂,但能够减少采集线束的数量,从而减小转接连接器170在输出部132上的区域占比,以提高电路板130的集成度。
可选的,如图2所示,信号采集组件100包括导热片200,导热片200的一端与第一采集线束140上的温度传感器150连接,导热片200的另一端与汇流排组件120焊接。由于电池模组10的冷却结构设置在电芯的两侧,使得电池模组10产生的热量主要集中在顶端,而电池模组10顶端电极与汇流排组件120连接,从而使得电池模组10产生的热量通过汇流排组件120传递至导热片200,然后由导热片200传递至温度传感器150,温度传感器150监测到温度信息,并将温度信息转换为电压信号传输至电路板130,然后通过输出连接器180输出。通过在温度传感器150与汇流排组件120之间设置导热片200,并将温度传感器150设置在第一采集线束140上,相对于直接将温度传感器150贴附在汇流排组件120上而言,有助于提高温度传感器150的设置灵活性,同时也有助于温度信号的传输设计。
其中,导热片200上对应温度传感器150的位置开设有安装孔210,温度传感器150则位于安装孔210内并与导热片200连接。通过将温度传感器150设置在导热片200的安装孔210内,使得电池模组10产生的热量能够通过安装孔210的四周传输至温度传感器150,有助于温度传感器150对温度信息的监测。此外,将温度传感器150设置在导热片200的安装孔210内,还有助于对温度传感器150设置位置的定位,通过在温度传感器150与安装孔210侧壁之间填充导热胶220,还能够提高温度传感器150与导热片200的连接稳定性,并进一步提高温度传感器150对温度信号采集的稳定性。
可选的,导热片200背离汇流排组件120的一侧凸设有防护部230,防护部230沿安装孔210的边缘延伸。由于导热片200上的安装孔210沿导热片200的厚度方向贯穿导热片200,使得温度传感器150安装在安装孔210中时,其表面处于暴露状态。在将信号采集组件100安装在电池模组10中时,电池模组10中的其他结构件可能会对温度传感器150产生挤压,甚至导致温度传感器150损坏,影响温度传感器150的正常使用。通过在导热片200背离汇流排组件120的一侧设置防护部230,使得防护部230能够对温度传感器150进行一定的保护,降低温度传感器150因受挤压而发生损坏的风险。
在一些实施例中,防护部230位于温度传感器150的相对两侧,为保证温度传感器150在安装孔210中的稳定安装,温度传感器150的尺寸需小于或等于安装孔210的尺寸,通过在温度传感器150的相对两侧设置防护部230,并使防护部230沿安装孔210的边缘延伸,即防护部230与安装孔210对应侧边的长度一致,使得温度传感器150无论在哪一侧受到挤压,防护部230均能起到防护作用,从而降低温度传感器150因受挤压而发生损坏的风险。
在另一些实施例中,防护部230沿安装孔210的边缘围设在温度传感器150的周围,即防护部230沿安装孔210的边缘对温度传感器150进行全包围,以对温度传感器150进行全方位的保护,进一步降低温度传感器150因受挤压而发生损坏的风险,提高温度采集的稳定性。
可选的,温度传感器150穿过安装孔210,防护部230远离导热片200的一端朝靠近安装孔210的方向延伸至温度传感器150背离汇流排组件120的一侧。为保证电池模组10产生的热量能够通过汇流排组件120传递至导热片200,然后通过导热片200有效传递至温度传感器150,所用导热片200的厚度需要设置为较薄,在将温度传感器150设置在安装孔210中时,温度传感器150可能会凸出于导热片200的表面,通过将防护部230远离导热片200的一端朝靠近安装孔210的方向延伸至温度传感器150背离汇流排组件120的一侧,使得防护部230能够同时对温度传感器150的上表面进行保护,以进一步降低温度传感器150因受挤压而发生损坏的风险。
在一些实施例中,温度传感器150的厚度大于安装孔210的深度,温度传感器150穿过安装孔210并与防护部230抵接,且防护部230所用的材质为导热材料。即在将导热片200套设在温度传感器150上时,能够通过导热片200上的防护部230直接与温度传感器150进行卡接,以保证温度传感器150的连接稳定性,同时也能够增大温度传感器150与导热片200的等效接触面积,有助于电池模组10产生的热量通过汇流排组件120传递至导热片200,导热片200传递至防护部230,然后通过防护部230传递至温度传感器150,从而有助于改善温度传感器150的监测效果。
在另一些实施例中,温度传感器150背离汇流排组件120的一侧的材质为柔性材料。在通过凸设在导热片200表面的防护部230与温度传感器150卡接时,为保证温度传感器150完全位于安装孔210内,需要对温度传感器150的厚度与防护部230的厚度进行精确设计,从而提高了对导热片200的加工精度需求,本申请实施例通过将温度传感器150背离汇流排组件120的一侧的材质设置为柔性材料,使得温度传感器150与防护部230抵接时,能够根据需求对温度传感器150进行一定的挤压,以降低导热片200的制作精度,提高导热片200的适用性。
在又一些实施例中,温度传感器150与防护部230之间能够具有间隙,以进一步降低温度传感器150与导热片200的匹配精度需求,而间隙的存在可能会影响导热片200与温度传感器150之间热量的传递以及温度传感器150与导热片200的连接稳定性。对此,本申请实施例中在间隙内填充导热胶220,一方面,导热胶220的填充能够使温度传感器150与导热片200的连接更加稳定,从而改善温度采集的稳定性;另一方面,导热胶220的填充能够进一步增大温度传感器150与导热片200之间的有效接触面积,从而有助于改善导热片200与温度传感器150之间的热传导,进而改善信号采集组件100的温度采集效果。
其次,本申请实施例还提供一种电池模组,该电池模组包括信号采集组件,该信号采集组件的具体结构参照上述实施例,由于本电池模组采用了上述所有实施例的全部技术方案,因此至少具有上述实施例的技术方案所带来的所有有益效果,在此不再一一赘述。
如图6所示,电池模组10包括多个电芯单元310以及信号采集组件100,信号采集组件100与多个电芯单元310电连接,以采集电池模组10中的电压信号和温度信号,并将采集到的信号输出至监测设备,以对电池模组10的工作状态进行实时监测,确保电池模组10的安全使用。
具体的,信号采集组件100包括支架110、汇流排组件120、电路板130和至少一条采集线束,其中,汇流排组件120设置在支架110上,汇流排组件120用于与电池模组10中电芯单元310的电极电连接,电路板130与支架110连接,电路板130包括多个与汇流排组件120电连接的第一电压采集端子131,第一采集线束140上设置有至少一个温度传感器150,温度传感器150与汇流排组件120连接,第一采集线束140的一端与电路板130电连接。通过设置用于温度采集的第一采集线束140,使得当温度采集点与电路板130的距离较远时,第一采集线束140能够作为温度采集的补充线束,而无需将电路板130延伸至对应的温度采集点,从而有助于降低信号采集组件100整体的制作成本。
在一些实施例中,电池模组10包括至少两个沿第二方向Y并列设置的子模组300,每个子模组300包括多个沿第一方向X并列设置的电芯单元310,每个电芯单元310包括至少两个沿第二方向Y并列设置的电芯。信号采集组件100的电路板130则沿第二方向Y设置在电池模组10的相对两侧,电路板130上的第一电压采集端子131与相邻子模组300的电芯单元310一一对应电连接,即电路板130上的第一电压采集端子131用于采集电池模组10中在第二方向Y上位于相对两侧的子模组300中电芯单元310的电压,以避免电路板130对信号采集组件100中汇流排组件120与对应子模组300的焊接区域产生干扰。
在另一些实施例中,电池模组10包括至少三个沿第二方向Y并列设置的子模组300,每个子模组300包括多个沿第一方向X并列设置的电芯单元310,每个电芯单元310包括至少两个沿第二方向Y并列设置的电芯。此时,分布在电池模组10相对两侧的电路板130只能对相应两侧的子模组300的电压信息进行监测,而无法对中间区域的子模组300的电压信息进行监测。
对此,信号采集组件100还能够包括至少一条第二采集线束160,第二采集线束160位于电池模组10的顶面,第二采集线束160的第二电压采集端子162通过汇流排组件120与对应子模组300的电芯单元310一一对应电连接。其中,第二采集线束160的一端设置有第二转接头161,每条第二采集线束160的第二转接头161分别与信号采集组件100的其中一个转接连接器170连接。通过在第二采集线束160的一端设置第二转接头161,并将第二转接头161与转接连接器170连接,同样能够将第二采集线束160上采集的电压信号集成在电路板130上,然后从同一个输出连接器180输出,以实现电压信号与温度信号的一体化集成。
需要说明的是,本申请实施例中电池模组10的多个子模组300通过汇流排组件120进行连接,汇流排组件包括正极输出汇流排121、负极输出汇流排122、第一连接汇流排123和第二连接汇流排124。其中,正极输出汇流排121与位于正极输出端的电芯单元310电连接,负极输出汇流排122与位于负极输出端的电芯单元310电连接,第一连接汇流排123与子模组300中的电芯单元310电连接,第二连接汇流排124与相邻两个子模组300电连接。
也就是说,如图6所示,整个电池模组10具有正极输出端和负极输出端,且正极输出端和负极输出端分别位于沿第二方向Y分布在相对两侧的子模组300上,其中一个子模组300的一端的电芯单元310为正极输出端,另一个子模组300的一端的电芯单元310则为负极输出端。正极输出汇流排121与位于正极输出端的电芯单元310电连接,以输出对应电芯单元310的采集信息;负极输出汇流排122与位于负极输出端的电芯单元310电连接,以输出对应电芯单元310的采集信息。
其中,每个子模组300中的多个电芯单元310通过第一连接汇流排123进行串并联连接,即第一连接汇流排123用于并联连接一个子模组300中一个电芯单元310的多个电芯,同时第一连接汇流排123串联连接一个子模组300中相邻的两个电芯单元310;相邻的两个子模组300之间则通过第二连接汇流排124串联连接,从而形成电池模组10。通过汇流排组件120与子模组300连接方式的设计,能够满足不同电池模组10的设计需求。
Claims (20)
- 一种信号采集组件(100),所述信号采集组件(100)用于电池模组(10),所述信号采集组件(100)包括:支架(110);汇流排组件(120),设置在所述支架(110)上;所述汇流排组件(120)设置为与所述电池模组(10)中电芯的电极电连接;电路板(130),与所述支架(110)连接;所述电路板(130)包括多个第一电压采集端子(131),多个所述第一电压采集端子(131)与所述汇流排组件(120)电连接;至少一条第一采集线束(140),所述第一采集线束(140)上设置有至少一个温度传感器(150),所述温度传感器(150)与所述汇流排组件(120)连接,所述第一采集线束(140)的一端与所述电路板(130)电连接。
- 根据权利要求1所述的信号采集组件(100),其中,所述电路板(130)上设置有至少一个转接连接器(170),所述转接连接器(170)与所述电路板(130)电连接;所述第一采集线束(140)的一端设置有第一转接头(141),每条所述第一采集线束(140)的第一转接头(141)分别与其中一个所述转接连接器(170)连接,以使所述第一采集线束(140)与所述电路板(130)电连接。
- 根据权利要求2所述的信号采集组件(100),所述信号采集组件(100)包括输出连接器(180),所述输出连接器(180)设置在所述电路板(130)上,所述输出连接器(180)与所述电路板(130)电连接。
- 根据权利要求3所述的信号采集组件(100),其中,所述支架(110)具有沿第一方向(X)相对的两个第一侧(111),以及沿第二方向(Y)相对的两个第二侧(112);所述电路板(130)设置在所述支架(110)的第二侧(112),所述电路板(130)沿所述第一方向(X)延伸,多个所述第一电压采集端子(131)沿所述第一方向(X)依次间隔设置。
- 根据权利要求4所述的信号采集组件(100),其中,所述电路板(130)沿所述第一方向(X)延伸至所述支架(110)的第一侧(111),并在所述支架(110)的第一侧(111)形成输出部(132),所述转接连接器(170)和所述输出连接器(180)设置在所述输出部(132)上。
- 根据权利要求4或5所述的信号采集组件(100),其中,所述信号采集组件(100)包括两个所述电路板(130),两个所述电路板(130)沿所述第二方向(Y)分别设置在所述支架(110)的第二侧(112);两个所述电路板(130)的输出部(132)位于所述支架(110)的同一侧。
- 根据权利要求5所述的信号采集组件(100),所述信号采集组件(100)包括增强板(190),所述增强板(190)位于所述输出部(132)与所述支架(110)的第一侧(111)之间;所述增强板(190)与所述支架(110)连接,所述电路板(130)的输出部(132)安装在所述增强板(190)上。
- 根据权利要求2所述的信号采集组件(100),所述信号采集组件(100)包括至少一条第二采集线束(160),所述第二采集线束(160)的一端设置有第二转接头(161),每条所述第二采集线束(160)的第二转接头(161)分别与其中一个所述转接连接器(170)连接;所述第二采集线束(160)包括多个第二电压采集端子(162),多个所述第二电压采集端子(162)与所述汇流排组件(120)电连接。
- 根据权利要求1所述的信号采集组件(100),所述信号采集组件(100)包括导热片(200),所述导热片(200)的一端与所述第一采集线束(140)上的温度传感器(150)连接,所述导热片(200)的另一端与所述汇流排组件(120)焊接。
- 根据权利要求9所述的信号采集组件(100),其中,所述导热片(200)上对应所述温度传感器(150)的位置开设有安装孔(210),所述温度传感器(150)位于所述安装孔(210)内并与所述导热片(200)连接。
- 根据权利要求10所述的信号采集组件(100),其中,所述导热片(200)背离所述汇流排组件(120)的一侧凸设有防护部(230),所述防护部(230)沿所述安装孔(210)的边缘延伸。
- 根据权利要求11所述的信号采集组件(100),其中,所述防护部(230)位于所述温度传感器(150)的相对两侧;或,所述防护部(230)沿所述安装孔(210)的边缘围设在所述温度传感器(150)的周围。
- 根据权利要求11所述的信号采集组件(100),其中,所述温度传感器(150)穿过所述安装孔(210),所述防护部(230)远离所述导热片(200)的一端朝靠近所述安装孔(210)的方向延伸至所述温度传感器(150)背离所述汇流排组件(120)的一侧。
- 根据权利要求11至13任一项所述的信号采集组件(100),其中,所述温度传感器(150)的厚度大于所述安装孔(210)的深度,所述温度传感器(150)穿过所述安装孔(210)并与所述防护部(230)抵接;所述防护部(230)的材质为导热材料。
- 根据权利要求14所述的信号采集组件(100),其中,所述温度传感器(150)背离所述汇流排组件(120)的一侧的材质为柔性材料。
- 根据权利要求11至13任一项所述的信号采集组件(100),其中,所述温度传感器(150)与所述防护部(230)之间具有间隙,所述间隙内填充有导热胶(220)。
- 一种电池模组(10),所述电池模组(10)包括多个电芯单元(310)以及权利要求1至16任一项所述的信号采集组件(100),所述信号采集组件(100)与所述多个电芯单元(310)电连接。
- 根据权利要求17所述的电池模组(10),其中,所述电池模组(10)包括至少两个沿第二方向(Y)并列设置的子模组(300),每个所述子模组(300)包括多个沿第一方向(X)并列设置的所述电芯单元(310);所述信号采集组件(100)的电路板(130)沿所述第二方向(Y)设置在所述电池模组(10)的相对两侧,所述电路板(130)的第一电压采集端子(131)与相邻所述子模组(300)的电芯单元(310)一一对应电连接。
- 根据权利要求17所述的电池模组(10),其中,所述电池模组(10)包括至少三个沿第二方向(Y)并列设置的子模组(300),每个所述子模组(300)包括多个沿第一方向(X)并列设置的所述电芯单元(310);所述信号采集组件(100)的第二采集线束(160)位于所述电池模组(10)的顶面,所述第二采集线束(160)的第二电压采集端子(162)与对应所述子模组(300)的电芯单元(310)一一对应电连接。
- 根据权利要求18或19所述的电池模组(10),其中,所述信号采集组件(100)的汇流排组件(120)包括正极输出汇流排(121)、负极输出汇流排(122)、第一连接汇流排(123)和第二连接汇流排(124),所述正极输出汇流排(121)与位于正极输出端的电芯单元(310)电连接,所述负极输出汇流排(122)与位于负极输出端的电芯单元(310)电连接,所述第一连接汇流排(123)与所述子模组(300)中的电芯单元(310)电连接,所述第二连接汇流排(124)与相邻两个所述子模组(300)电连接。
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223282803.X | 2022-12-02 | ||
| CN202223242606.5U CN218919015U (zh) | 2022-12-02 | 2022-12-02 | 温度采集组件及电池模组 |
| CN202223242606.5 | 2022-12-02 | ||
| CN202223282803.XU CN218887477U (zh) | 2022-12-02 | 2022-12-02 | 信号采集组件及电池模组 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024113949A1 true WO2024113949A1 (zh) | 2024-06-06 |
Family
ID=91322949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2023/112005 Ceased WO2024113949A1 (zh) | 2022-12-02 | 2023-08-09 | 信号采集组件及电池模组 |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2024113949A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026017020A1 (zh) * | 2024-07-15 | 2026-01-22 | 浙江吉利控股集团有限公司 | 动力电池及其汽车 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012059663A (ja) * | 2010-09-13 | 2012-03-22 | Auto Network Gijutsu Kenkyusho:Kk | 組電池配線モジュール |
| CN209401787U (zh) * | 2018-12-29 | 2019-09-17 | 华鼎国联四川动力电池有限公司 | 一种带有低压采集装置的双面出极耳软包电池模组 |
| CN110931700A (zh) * | 2018-09-19 | 2020-03-27 | 福特全球技术公司 | 用于提供单个电池单元电路保护的系统和方法 |
| CN114204147A (zh) * | 2019-06-28 | 2022-03-18 | 宁德时代新能源科技股份有限公司 | 电池模组 |
| CN218887477U (zh) * | 2022-12-02 | 2023-04-18 | 湖北亿纬动力有限公司 | 信号采集组件及电池模组 |
| CN218919015U (zh) * | 2022-12-02 | 2023-04-25 | 湖北亿纬动力有限公司 | 温度采集组件及电池模组 |
-
2023
- 2023-08-09 WO PCT/CN2023/112005 patent/WO2024113949A1/zh not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012059663A (ja) * | 2010-09-13 | 2012-03-22 | Auto Network Gijutsu Kenkyusho:Kk | 組電池配線モジュール |
| CN110931700A (zh) * | 2018-09-19 | 2020-03-27 | 福特全球技术公司 | 用于提供单个电池单元电路保护的系统和方法 |
| CN209401787U (zh) * | 2018-12-29 | 2019-09-17 | 华鼎国联四川动力电池有限公司 | 一种带有低压采集装置的双面出极耳软包电池模组 |
| CN114204147A (zh) * | 2019-06-28 | 2022-03-18 | 宁德时代新能源科技股份有限公司 | 电池模组 |
| CN218887477U (zh) * | 2022-12-02 | 2023-04-18 | 湖北亿纬动力有限公司 | 信号采集组件及电池模组 |
| CN218919015U (zh) * | 2022-12-02 | 2023-04-25 | 湖北亿纬动力有限公司 | 温度采集组件及电池模组 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026017020A1 (zh) * | 2024-07-15 | 2026-01-22 | 浙江吉利控股集团有限公司 | 动力电池及其汽车 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216903497U (zh) | 线路板组件、电池及用电装置 | |
| CN218919015U (zh) | 温度采集组件及电池模组 | |
| CN218887477U (zh) | 信号采集组件及电池模组 | |
| US10601082B2 (en) | Signal collection assembly and power battery module comprising the same | |
| CN218731672U (zh) | 采集组件及电池模组 | |
| WO2013022210A2 (ko) | 이차전지 팩 | |
| WO2018080181A1 (ko) | 인쇄 회로 기판용 커넥터 및 인쇄 회로 기판과 커넥터를 포함한 전지 시스템 | |
| CN216488226U (zh) | 一种电池模组集成采集组件及电池模组 | |
| CN112042008A (zh) | 具有集成导体的剪力墙 | |
| CN219476774U (zh) | 集成式ccs组件及电池包 | |
| WO2023142581A1 (zh) | 汇流排、电芯采集组件及电池模组 | |
| WO2024113949A1 (zh) | 信号采集组件及电池模组 | |
| CN114678225B (zh) | 超级电容模组及其组装方法、储能电源及机车 | |
| CN116365078A (zh) | 模组结构 | |
| CN219937134U (zh) | 电池模组采集组件及应用其的电池包 | |
| CN221176467U (zh) | 电池包和用电设备 | |
| CN221687592U (zh) | 一种电池包 | |
| CN218996839U (zh) | 电池信息采集装置、电池模组和车辆 | |
| CN218334214U (zh) | 一种基于ccs组件的电池包装置及电动车辆 | |
| WO2024065957A1 (zh) | 集成母排组件及电池包 | |
| WO2015053565A1 (ko) | 태양전지 모듈 | |
| CN218788859U (zh) | 采集件组件及电池模组 | |
| CN223651593U (zh) | 汇流排组件及电池模组 | |
| CN221994660U (zh) | 一种导电片和集成母排 | |
| CN220830018U (zh) | 一种电池装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23896110 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 23896110 Country of ref document: EP Kind code of ref document: A1 |