CN113540702B - Electricity core is gathered and monitoring device and battery module - Google Patents
Electricity core is gathered and monitoring device and battery module Download PDFInfo
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- CN113540702B CN113540702B CN202110813280.8A CN202110813280A CN113540702B CN 113540702 B CN113540702 B CN 113540702B CN 202110813280 A CN202110813280 A CN 202110813280A CN 113540702 B CN113540702 B CN 113540702B
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- acquisition
- collecting
- circuit board
- assembly
- battery cell
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- 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
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- 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- 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
- H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
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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 invention discloses a battery cell acquisition and monitoring device and a battery module, and relates to the technical field of batteries. The device is used for collecting parameters of the battery cell and comprises a circuit board assembly and a connecting bar; the circuit board assembly comprises a circuit board base material and a collecting assembly arranged on the circuit board base material, and a mounting groove is formed in the circuit board base material; the connecting bar is embedded in the mounting groove, connected with the acquisition assembly and used for being connected with the battery core so as to acquire parameters of the battery core through the acquisition assembly. On one hand, the device integrates the acquisition assembly on the circuit board base material, simultaneously, the circuit board base material is provided with the mounting groove, and the connecting bar is integrated in the mounting groove of the circuit board base material, so that the assembly process can be simplified, the assembly time can be reduced, and the device has higher integration level; on the other hand, through inlaying the run-on in the mounting groove, not only can improve the stability of run-on, can also reduce the run-on neglected loading and the appearance of wrong dress problem to can improve assembly efficiency and assembly quality effectively.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery cell acquisition and monitoring device and a battery module.
Background
Among the prior art, in order to realize the collection and the control to the pressure isoparametric of electric core in the battery module, be provided with electric core collection and monitoring device usually, this device includes spare parts such as pencil division board, connecting plate and FPC usually. However, as the number of the battery cells is increased, the number of the parts of the device is increased, so that the assembly efficiency of the device is remarkably reduced, and the problems of missing assembly, wrong assembly and the like are easy to occur during assembly.
Disclosure of Invention
The invention aims to provide a battery cell acquisition and monitoring device and a battery module which have high integration level, less assembly process and time and are not easy to misassemble and neglected assemble, and can effectively improve the assembly efficiency and the assembly quality.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides an electrical core collecting and monitoring apparatus, configured to collect parameters of an electrical core, including:
the circuit board assembly comprises a circuit board base material and a collecting assembly arranged on the circuit board base material, wherein the circuit board base material is provided with a mounting groove;
the connecting bar is embedded in the mounting groove, connected with the acquisition assembly and used for being connected with the battery core so as to acquire parameters of the battery core through the acquisition assembly.
In an optional embodiment, a plurality of mounting grooves have been seted up in proper order on the circuit board assembly, and electric core is gathered and monitoring device includes a plurality of connecting rows that set up with a plurality of mounting grooves one-to-one, and every connecting row all inlays the mounting groove of locating the corresponding position, and every connecting row all is used for being connected with an electric core to gather the parameter of the electric core that corresponds the position through gathering the subassembly.
In an optional embodiment, two pole welding grooves are arranged on the first side of each connecting row, and when the connecting rows are embedded in the mounting grooves, each pole welding groove can be exposed out of the notch of the corresponding mounting groove to be connected with a pole of the battery cell;
two through holes opposite to the two pole welding grooves are formed in the groove bottom of each mounting groove opposite to the groove opening, so that the second side of each connecting row and the positions, opposite to the two pole welding grooves, of each connecting row can be exposed through the corresponding through holes.
In an optional embodiment, the collecting assembly includes a collecting joint, a plurality of collecting sheets arranged in one-to-one correspondence with the plurality of connecting rows, and a plurality of collecting harnesses arranged in one-to-one correspondence with the plurality of collecting sheets;
the collection joint is arranged on the circuit board base material, the collection pieces are connected with the connection rows in a one-to-one manner and are arranged, the first ends of the collection wiring harnesses are connected with the collection pieces in a one-to-one manner, the second ends of the collection wiring harnesses are connected with the collection joint, the collection joint and the circuit board base material are matched, and parameters of the battery cell corresponding to the position are collected through the collection pieces corresponding to the position.
In an optional embodiment, the collecting sheet includes a buffer line and a collecting point, the buffer line is disposed in a bent manner, a connecting contact is disposed at a first end of the collecting harness, the first end of the buffer line is connected to the connecting contact, a second end of the buffer line is connected to the collecting point, and the collecting point is connected to a connecting row in a corresponding position.
In an alternative embodiment, the portion between the first end and the second end of the buffer circuit is suspended with respect to the circuit board substrate.
In an alternative embodiment, the area of the collection points is larger than the area of the connection contacts.
In an alternative embodiment, the collecting plate is provided with a fuse, and the flow area of the buffer line is smaller than the flow area of the collecting harness.
In an optional embodiment, the battery cell collecting and monitoring device further includes a protective film, the protective film is covered outside the circuit board assembly, and at least one of the first opening, the second opening and the third opening is formed in the protective film;
the connecting bar is provided with a pole welding groove, and the first opening is opposite to the pole welding groove so that the pole welding groove can be exposed through the first opening; the collecting assembly comprises a collecting joint arranged on the circuit board base material and a collecting sheet connected with the collecting joint, and the collecting sheet comprises a buffer circuit; the second opening is opposite to the buffer lines, so that each buffer line can be exposed from the corresponding second opening, and the third opening is opposite to the collecting joint, so that the collecting joint can be exposed from the third opening.
In a second aspect, the present invention provides a battery module, including:
the battery cell comprises a battery cell and the battery cell acquisition and monitoring device of any one of the preceding embodiments, wherein the battery cell acquisition and monitoring device is used for acquiring parameters of the battery cell.
The embodiment of the invention has at least the following advantages or beneficial effects:
the embodiment of the invention provides a battery cell acquisition and monitoring device, which is used for acquiring parameters of a battery cell and comprises a circuit board assembly and a connecting bar; the circuit board assembly comprises a circuit board base material and a collecting assembly arranged on the circuit board base material, and a mounting groove is formed in the circuit board base material; the connecting bar is embedded in the mounting groove, connected with the acquisition assembly and used for being connected with the battery cell so as to acquire parameters of the battery cell through the acquisition assembly. On one hand, the electric core collecting and monitoring device integrates the collecting assembly on the circuit board base material, meanwhile, the circuit board base material is provided with the mounting groove, and the connecting bar is integrated in the mounting groove of the circuit board base material, so that the assembly process can be simplified, the assembly time can be reduced, and the device has higher integration level; on the other hand, through inlaying the run-on in the mounting groove, not only can improve the stability of run-on, can also reduce the run-on neglected loading and the appearance of wrong dress problem to can improve assembly efficiency and assembly quality effectively.
The embodiment of the invention also provides a battery module which comprises the battery cell acquisition and monitoring device. Therefore, the assembling method has the advantages of high assembling efficiency and good assembling quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a battery cell collecting and monitoring apparatus provided in an embodiment of the present invention at a first viewing angle;
fig. 2 is a schematic structural diagram of a battery cell collecting and monitoring device provided in an embodiment of the present invention at a second viewing angle;
fig. 3 is a schematic partial structure diagram of a battery cell collecting and monitoring device according to an embodiment of the present invention;
FIG. 4 is a partial enlarged view at I of FIG. 3;
FIG. 5 is a partial enlarged view at II of FIG. 4;
fig. 6 is a schematic view of a partially exploded structure of a battery cell collecting and monitoring apparatus according to an embodiment of the present invention;
fig. 7 is a schematic partial structure diagram of a battery cell collecting and monitoring device according to an embodiment of the present invention;
fig. 8 is a schematic view of a partial structure of a battery cell collecting and monitoring device according to an embodiment of the present invention;
fig. 9 is a schematic view of a manufacturing process of the battery cell collecting and monitoring device according to the embodiment of the present invention.
Icon: 100-electric core acquisition and monitoring device; 101-a circuit board assembly; 103-a circuit board substrate; 105-an acquisition component; 107-mounting grooves; 109-connecting rows; a 111-pole welding groove; 113-a via; 115-collection joint; 117-collecting sheet; 119-collecting the wiring harness; 121-connecting contacts; 123-buffer line; 125-acquisition Point; 127-a first opening; 129-second opening; 131-a third opening; 133-protective film.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the correlation technique, in order to realize the collection and the control to the pressure isoparametric of electric core in the battery module, be provided with electric core collection and monitoring device usually, spare parts such as this device includes pencil division board, connecting plate and FPC usually. However, as the number of the battery cells is increased, the number of parts of the device is increased, so that the assembly efficiency and the assembly quality of the device are obviously reduced, and the problems of missing assembly, wrong assembly and the like are easy to occur during assembly. In view of this, this embodiment provides a battery module, and its electric core is gathered and monitoring device's integrated level is high, and has the advantage that assembly efficiency and assembly quality are high. The structure of the battery module will be described in detail below.
Fig. 1 is a schematic structural diagram of a cell collecting and monitoring device 100 provided in this embodiment at a first viewing angle; fig. 2 is a schematic structural diagram of the electrical core collecting and monitoring apparatus 100 provided in this embodiment at a second viewing angle; fig. 3 is a schematic partial structure diagram of a battery cell collecting and monitoring device 100 according to the present embodiment; FIG. 4 is an enlarged view of a portion of FIG. 3 at I; FIG. 5 is a partial enlarged view at II of FIG. 4; fig. 6 is a schematic diagram of a partially exploded structure of the battery cell collecting and monitoring apparatus 100 according to this embodiment. Referring to fig. 1 to 6, in the present embodiment, the battery module includes a battery body (not shown) and a cell collecting and monitoring device 100 disposed on the battery body. The battery body includes a plurality of battery cells arranged at intervals, and the battery cell acquisition and monitoring device 100 is connected to each battery cell and is used for acquiring working parameters of each battery cell, such as voltage parameters and temperature parameters.
In detail, in this embodiment, the battery cell collecting and monitoring apparatus 100 specifically includes a circuit board assembly 101 and a connection bar 109.
In more detail, the circuit board assembly 101 includes a circuit board substrate 103 and a pick assembly 105 disposed on the circuit board substrate 103. Wherein, the material of circuit board substrate 103 can be phenolic aldehyde class paper lamination board, epoxy class paper lamination board if: FR-1, FR-2, FR-3, etc., polyester glass felt laminates, epoxy glass cloth laminates such as: FR-4, FR-5, etc., metal substrates, ceramic substrates, etc.; polyester films, polyimide films, fluorinated ethylene propylene films, and the like. Also, materials such as FR-4 and FR-5 which are high in thermal conductivity, excellent in heat resistance (150 ℃ C., 60 min) and solderability (260 ℃ C., 10 s), high in copper foil adhesive strength (1.5X 104Pa or more) and bending strength (25X 104 Pa) are preferred. The acquisition assembly 105 is integrated on the circuit board substrate 103, so that the integration level of the whole circuit board assembly 101 can be improved to a certain degree, and the integration level of the whole battery cell acquisition and monitoring device 100 can be further improved.
In addition, the circuit board substrate 103 is provided with a mounting groove 107. The connecting bar 109 is embedded in the mounting groove 107, the connecting bar 109 is connected with the acquisition assembly 105, and the connecting bar 109 is used for being connected with the battery cell so as to acquire the parameters of the battery cell through the acquisition assembly 105 and the circuit board substrate 103. On the one hand, set up mounting groove 107 on circuit board substrate 103, with the run-on board 109 integrated in circuit board substrate 103's mounting groove 107 for whole electric core is gathered and monitoring device 100's integrated level obtains further improvement, and can reduce whole electric core and gather and monitoring device 100's volume, makes its structure compacter, occupies less space, can improve volume utilization. Meanwhile, in the assembling process, only the connecting bar 109 needs to be installed in the installation groove 107, so that the assembling process can be simplified, and the assembling time can be shortened; on the other hand, through inlaying the run-on 109 in mounting groove 107, can also improve run-on 109's stability, reduce run-on 109 neglected loading and the appearance of misloading problem, provide and prevent slow-witted function to assembly efficiency and assembly quality can be improved effectively.
It should be noted that, in this embodiment, the connection bar 109 and the circuit board substrate 103 may be integrally formed by welding or the like, and in the whole manufacturing process of the electrical core collecting and monitoring device 100, after the circuit board substrate 103 and the connection sheet are integrally formed, the copper-clad plate operation is performed by using an injection molding process, and finally, the required circuit is etched and connected to the collecting assembly 105. By providing the connecting row 109 and the circuit board base material 103 as an integral molding, the assembling efficiency and quality can be further improved while the structure thereof is more simplified, thereby further reducing the assembling process and time.
Referring to fig. 1 to 6 again, in the present embodiment, a plurality of mounting slots 107 are sequentially formed on the circuit board assembly 101, for example, each of the circuit board assemblies 101 shown in fig. 1 to 6 includes six mounting slots 107 sequentially formed thereon. Each mounting slot 107 is a rectangular slot-like structure having a notch at one end. Cell collection and monitoring device 100 includes six banks 109 with six mounting groove 107 one-to-one settings, and every bank 109 all inlays the mounting groove 107 of locating the corresponding position, and every bank 109 all corresponds and is provided with an electric core to gather the parameter connection of the electric core of corresponding position through collection component 105, thereby make collection component 105 can gather the voltage isoparametric information of six electric cores respectively through six banks 109, in order to guarantee the operation that the battery module can be normal. Of course, in other embodiments, the number of the mounting grooves 107 may also be adjusted according to requirements, for example, eight, ten, and the like may be set, and the embodiment is not limited.
In detail, the first side of each connection row 109 is provided with two utmost point post welding grooves 111, and when the connection row 109 inlays and locates the mounting groove 107 of corresponding position, every utmost point post welding groove 111 homoenergetic is exposed from the notch of the mounting groove 107 that corresponds to in order to cooperate with electric core welding. That is, through the setting of utmost point post welding groove 111, can provide welding frock location for the cooperation of electric core and connecting bar 109 to make the utmost point post of electric core can weld the cooperation with connecting bar 109 steadily, with the accuracy of data acquisition operations such as the voltage of guaranteeing electric core. Simultaneously, utmost point post welding groove 111 is the circular recess of establishing for the indent, therefore through utmost point post welding groove 111's setting, still does benefit to the whole thickness of attenuate link bank 109 to more do benefit to and guarantee welding quality, go on with the high efficiency of guaranteeing the operation of gathering.
In addition, in the present embodiment, two through holes 113 opposite to the two pole welding grooves 111 are opened on the bottom of each mounting groove 107 opposite to the notch, so that the positions of the second side of each connection row 109 opposite to the two pole welding grooves 111 can be exposed through the corresponding through holes 113. Through the setting of through-hole 113 to the welding jobs of the connecting row 109 of being convenient for and electric core go on, on the other hand is convenient for dispel the heat, guarantees the collection operation of battery module and the going on of normal charge-discharge operation. Simultaneously, because the quantity of through-hole 113 is two, two through-holes 113 are seted up in proper order, and the diapire also can assist the stability of guaranteeing behind connecting row 109 and the mounting groove 107 cooperation between the through-hole 113 to further guarantee the accuracy and the security of each item operation.
Fig. 7 is a schematic partial structure diagram of the battery cell collecting and monitoring device 100 according to the present embodiment; fig. 8 is a schematic partial structural diagram of the cell collecting and monitoring device 100 provided in this embodiment. Referring to fig. 7 and 8, the connection row 109 of the present embodiment is inserted into the mounting groove 107 in two ways, one way is that the entire connection row 109 shown in fig. 7 is inserted into the mounting groove 107, and the circumferential edge of the connection row 109 is matched with the groove wall of the mounting groove 107, so that the entire side surface of the first side of the connection row 109 can be exposed from the notch of the mounting groove 107. The other is that the whole connecting bar 109 shown in fig. 8 is embedded in the mounting groove 107, and the connecting bar 109 extends into the groove wall of the mounting groove 107, and only the positions of the two pole welding grooves 111 are exposed to be matched with the battery cell. No matter the embedding mode that adopts fig. 7 or the embedding mode that adopts fig. 8, the stability after the row 109 embedding can both be guaranteed effectively, simultaneously can both expose utmost point post welding groove 111 again in order to cooperate with electric core welding to fully guarantee going on in order of each item work of battery module.
Referring to fig. 3 to fig. 6 again, in order to ensure normal operation of the parameter collection and monitoring operation of the battery cell, in the present embodiment, the collection assembly 105 specifically includes a collection connector 115, a plurality of collection sheets 117 disposed in one-to-one correspondence with the plurality of connection banks 109, and a plurality of collection harnesses 119 disposed in one-to-one correspondence with the plurality of collection sheets 117. Wherein, gather and connect 115 and set up in circuit board substrate 103, a plurality of collection pieces 117 and a plurality of connecting row 109 one-to-one ground and be connected the setting, a plurality of first ends of gathering pencil 119 are connected with a plurality of collection pieces 117 one-to-one ground, and a plurality of second ends of gathering pencil 119 all are connected with gathering joint 115 for with gather joint 115 and circuit board substrate 103 cooperation, in order to gather the parameter of the electric core that corresponds the position through the collection piece 117 that corresponds the position. That is, through the setting of gathering joint 115, a plurality of collection piece 117 and a plurality of collection pencil 119 for the parameter information homoenergetic such as voltage of every electric core can be gathered effectively, thereby can guarantee the safety and the orderly progress of the charge-discharge operation of battery module.
In detail, in the present embodiment, the acquisition sheet 117 is of a flexible structure, and the acquisition sheet 117 specifically includes a buffer line 123 and an acquisition point 125. The buffer circuit 123 is disposed in a curved manner, the embodiment employs a curved etching circuit, and other embodiments may also employ a metal wire or metal sheet structure disposed in a curved manner, and when the etching circuit and the metal wire are selected, a material thereof may be specifically selected to be copper, and when the metal sheet is selected, a material thereof may be specifically selected to be nickel. Furthermore, a connection contact 121 is arranged at a first end of the collection wire harness 119, a first end of the buffer line 123 is connected with the connection contact 121, a second end of the buffer line 123 is connected with the collection point 125, and the collection point 125 is connected with the connection row 109 at the corresponding position. In addition, the buffer circuit 123 is arranged to be a bent structure, so that expansion of the battery cell in the use process can be absorbed, and collection failure caused by breakage of the collection sheet 117 and the connection contact 121 is avoided.
Alternatively, in this embodiment, a portion between the first end and the second end of the buffer circuit 123 is suspended from the circuit board substrate 103. Set up its middle part into unsettled setting, can further provide sufficient flexible activity space to fully absorb the inflation that electric core produced in the use, avoid gathering piece 117 and connecting contact 121 fracture and lead to gathering the inefficacy, thereby guarantee battery module's security and reliability.
Further optionally, in this embodiment, the area of collection point 125 is greater than the area of connection contact 121, so as to fully ensure the authenticity and reliability of collected data, and also fully ensure the stability of connection and matching between collection point 125 and the connection pad, and avoid collection point 125 to break away from connection bar 109 during the expansion of battery core, thereby further ensuring the safety and reliability of the whole battery module.
In the present embodiment, the connection fixing method of the pickup piece 117 and the connection contact 121 is a soldering method or a pressure welding method, and the soldering method includes reflow soldering and wave soldering, and reflow soldering/wave soldering is preferable. Simultaneously, gather piece 117 and connecting bank 109 be the welding mode with being connected fixed mode, can be resistance welding, laser welding to fully guarantee to gather the stability of piece 117 and connecting bank 109 cooperation back, thereby guarantee to gather authenticity and the reliability of data, and then guarantee the security and the reliability of battery module.
Further, in the present embodiment, the acquisition sheet 117 is provided with a FUSE, i.e., has a FUSE design. Meanwhile, the flow area of the buffer line 123 is smaller than that of the collection harness 119. Through setting up like this, can provide overload protection effectively for whole collection subassembly 105 for can protect the circuit under the extreme condition, and be convenient for change the maintenance, need not change whole module, thereby be favorable to reducing the maintenance cost.
Referring to fig. 1 again, in the present embodiment, the battery cell collecting and monitoring apparatus 100 further includes a protective film 133. The protective film 133 covers the circuit board assembly 101 to protect the entire circuit board assembly 101, and the auxiliary circuit board substrate 103 fixes the connection row 109 to ensure the safety and reliability of the circuit board assembly 101.
Meanwhile, in order to ensure normal operation of the cell parameter collecting operation, in the embodiment, at least one of the first opening 127, the second opening 129 and the third opening 131 is formed in the protective film 133, and in the embodiment, the first opening 127, the second opening 129 and the third opening 131 are specifically formed. The first opening 127 is opposite to the electrode soldering groove 111, so that the electrode soldering groove 111 can be exposed through the first opening 127, and the battery cell can be soldered. The second openings 129 are opposite to the buffer lines 123, so that each buffer line 123 can be exposed from the corresponding second opening 129, and sufficient movement space is provided for the buffer lines 123, so that the acting force generated by cell expansion is consumed, and the safety and reliability of the acquisition assembly 105 are ensured. The third opening 131 is opposite to the collecting tab 115 so that the collecting tab 115 can be exposed from the third opening 131 to facilitate installation, removal, and maintenance work of the collecting tab 115.
It should be noted that, in this embodiment, the shape of the first opening 127 is set to be circular, and the size of the first opening 127 is slightly larger than the size of the pole welding groove 111, so as to flow out of the welding position, so as to ensure the safety and reliability of the welding operation between the connection bar 109 and the battery cell. Similarly, the shape of the second opening 129 is square, and the shape of the second opening 129 is slightly larger than the size of the buffer circuit 123, so as to ensure that enough space can be provided for the movement of the buffer circuit 123, so as to consume the acting force when the cell expands. The third opening 131 has a square shape, and the third opening 131 is opened at an end portion of the protective film 133 to be opposite to the collecting tab 115, so that the mounting, dismounting, and maintenance work of the collecting tab 115 can be facilitated.
It should be noted that, in this embodiment, the material of the protective film 133 may be selected from PP, PVC, PET, PI, AR, PE, OPP, OCA, and the like, and preferably PET, PI, and PP, and the fixing manner may be a back adhesive and a hot pressing manner, which can ensure the stability after installation, and this embodiment is not limited.
Fig. 9 is a schematic view of a manufacturing process of the battery cell collecting and monitoring device 100 according to this embodiment. Referring to fig. 9, this embodiment further provides a process flow of the method for manufacturing the electrical core collecting and monitoring device 100, which specifically includes integrally forming the circuit board substrate 103 and the connecting bar 109, performing inner layer dry film treatment (this step includes plate grinding, film pasting, exposure, development, etching, and film removing treatment performed in sequence), performing browning, laminating, drilling, copper plate plating, solder resisting, welding the collecting sheet 117 and the connecting bar 109 in sequence, performing silk printing, surface treatment, CNC, film pasting and detection of the protective film 133, and finally packaging after the detection is qualified.
That is, in this embodiment, the manufacturing method of the electrical core collecting and monitoring device 100 is to integrally form the circuit board substrate 103 and the connecting bar 109, so that the connecting bar 109 is embedded into the mounting groove 107, then use an injection molding process, perform a copper-clad plate operation, etch to form a desired circuit, and finally connect the collecting piece 117 and coat the protective film 133. The process flow is simple, convenient and fast, the cost is low, and the efficiency is high.
The following describes the installation process, operation principle and beneficial effects of the battery module in detail:
when the battery module is assembled, the connecting row 109 can be welded with the mounting groove 107 of the circuit board base material 103, the connecting row is embedded into the mounting groove 107, then copper-clad plate operation is carried out, a required circuit is formed by etching, and finally the collecting piece 117 is connected and the protective film 133 is coated. During operation of the battery module, the acquisition assembly 105 can acquire working parameters such as voltage of each battery cell to ensure normal operation of battery cell charge and discharge operation, and thus ensure safety and reliability of operation of the battery module.
In the above process, on one hand, the electrical core collecting and monitoring device 100 integrates the collecting assembly 105 into the circuit board substrate 103, meanwhile, the circuit board substrate 103 is provided with the mounting groove 107, and the connecting bar 109 is integrated into the mounting groove 107 of the circuit board substrate 103, so that the assembly process can be simplified, the assembly time can be reduced, and the device has higher integration level; on the other hand, by embedding the connecting bar 109 in the mounting groove 107, not only the stability of the connecting bar 109 can be improved, but also the occurrence of the problems of missing installation and misinstallation of the connecting bar 109 can be reduced, thereby effectively improving the assembly efficiency and the assembly quality.
In summary, the embodiment of the present invention provides the battery cell collecting and monitoring apparatus 100 and the battery module, which have high integration level, less assembly processes and time, and are not easy to misassemble or neglected assemble, and can effectively improve the assembly efficiency and the assembly quality.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a battery cell acquisition and monitoring device for gather the parameter of battery cell, its characterized in that includes:
the circuit board assembly comprises a circuit board base material and a collecting assembly arranged on the circuit board base material, wherein the circuit board base material is provided with a mounting groove;
the connecting bar is embedded in the mounting groove, is connected with the acquisition assembly and is used for being connected with the battery cell so as to acquire parameters of the battery cell through the acquisition assembly;
the circuit board assembly is sequentially provided with a plurality of mounting grooves, the electric core acquisition and monitoring device comprises a plurality of connecting rows which are arranged in one-to-one correspondence with the mounting grooves, each connecting row is embedded in the mounting groove at a corresponding position, and each connecting row is used for being connected with an electric core so as to acquire parameters of the electric core at the corresponding position through the acquisition assembly;
the collecting assembly comprises a collecting joint, a plurality of collecting pieces which are arranged in one-to-one correspondence with the plurality of connecting rows, and a plurality of collecting wire harnesses which are arranged in one-to-one correspondence with the plurality of collecting pieces; the acquisition joints are arranged on the circuit board base material, the acquisition pieces are connected with the connection rows in a one-to-one correspondence manner, first ends of the acquisition harnesses are connected with the acquisition pieces in a one-to-one correspondence manner, and second ends of the acquisition harnesses are connected with the acquisition joints and are used for being matched with the acquisition joints and the circuit board base material so as to acquire parameters of the battery cell at the corresponding position through the acquisition pieces at the corresponding position;
the collecting sheet comprises a buffer circuit and collecting points, a connecting contact is arranged at the first end of the collecting wire harness, the first end of the buffer circuit is connected with the connecting contact, the second end of the buffer circuit is connected with the collecting points, and the collecting points are connected with the connecting rows at corresponding positions; the flow area of the buffer circuit is smaller than that of the acquisition wiring harness; the area of the collection point is larger than that of the connection contact.
2. The electrical core acquisition and monitoring device of claim 1, wherein:
two pole welding grooves are formed in the first side of each connecting row, and when the connecting rows are embedded in the installation grooves, each pole welding groove can be exposed out of the notch of the corresponding installation groove to be connected with a pole of the battery cell;
every mounting groove with set up on the tank bottom that the notch is relative with two through-holes that utmost point post welding groove is relative to make every the second side of run-on with two the position homoenergetic that utmost point post welding groove is relative exposes through corresponding the through-hole.
3. The electrical core acquisition and monitoring device of claim 1, wherein:
the part between the first end and the second end of the buffer circuit is arranged in a suspended mode relative to the circuit board base material.
4. The cell acquisition and monitoring device of claim 1, wherein:
the acquisition sheet is provided with a fuse.
5. The cell acquisition and monitoring device according to any of claims 1 to 4, characterized in that:
the battery cell acquisition and monitoring device further comprises a protective film, the protective film is covered outside the circuit board assembly, and at least one of a first opening, a second opening and a third opening is formed in the protective film;
the connecting bar is provided with a pole welding groove, and the first opening is opposite to the pole welding groove so that the pole welding groove can be exposed through the first opening; the collecting assembly comprises a collecting joint arranged on the circuit board base material and a collecting sheet connected with the collecting joint, and the collecting sheet is provided with a buffer circuit; the second opening is opposite to the buffer lines, so that each buffer line can be exposed from the corresponding second opening, and the third opening is opposite to the collection connector, so that the collection connector can be exposed from the third opening.
6. A battery module, comprising:
the battery cell comprises a battery cell and the battery cell acquisition and monitoring device of any one of claims 1 to 5, wherein the battery cell acquisition and monitoring device is used for acquiring parameters of the battery cell.
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| CN202110813280.8A CN113540702B (en) | 2021-07-19 | 2021-07-19 | Electricity core is gathered and monitoring device and battery module |
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| CN202110813280.8A CN113540702B (en) | 2021-07-19 | 2021-07-19 | Electricity core is gathered and monitoring device and battery module |
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| CN113540702B true CN113540702B (en) | 2023-03-24 |
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| CN109935775A (en) * | 2019-03-07 | 2019-06-25 | 浙江零跑科技有限公司 | Rectangular cell modular structure |
| CN210136940U (en) * | 2019-07-19 | 2020-03-10 | 上海元城汽车技术有限公司 | Battery pack of electric automobile and electric automobile |
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| CN204809300U (en) * | 2015-07-09 | 2015-11-25 | 宁德时代新能源科技有限公司 | Battery is subassembly for module |
| CN112909437B (en) * | 2018-07-23 | 2022-11-08 | 宁德时代新能源科技股份有限公司 | Sampling assembly and battery module |
| CN209029462U (en) * | 2018-08-19 | 2019-06-25 | 江西赣锋电池科技有限公司 | A kind of battery pack busbar and battery pack |
| CN112151895B (en) * | 2019-06-28 | 2022-01-07 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN212033083U (en) * | 2020-05-12 | 2020-11-27 | 恒大新能源技术(深圳)有限公司 | Battery signal acquisition device and battery module |
| CN212876189U (en) * | 2020-10-18 | 2021-04-02 | 江苏塔菲尔动力系统有限公司 | Module flexible circuit board sampling connection structure |
| CN213242865U (en) * | 2020-11-16 | 2021-05-18 | 江苏塔菲尔动力系统有限公司 | Flexible circuit board assembly for battery module and battery module thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109935775A (en) * | 2019-03-07 | 2019-06-25 | 浙江零跑科技有限公司 | Rectangular cell modular structure |
| CN210136940U (en) * | 2019-07-19 | 2020-03-10 | 上海元城汽车技术有限公司 | Battery pack of electric automobile and electric automobile |
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Effective date of registration: 20220113 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Applicant after: Jiangsu Zhengli new energy battery technology Co.,Ltd. Address before: 211100 Lantian Road 249, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Applicant before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Applicant before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Applicant before: Jiangsu Tafel Power System Co.,Ltd. |
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