CN107403899B - Battery connection module - Google Patents
Battery connection module Download PDFInfo
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- CN107403899B CN107403899B CN201610341466.7A CN201610341466A CN107403899B CN 107403899 B CN107403899 B CN 107403899B CN 201610341466 A CN201610341466 A CN 201610341466A CN 107403899 B CN107403899 B CN 107403899B
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- electrode
- circuit board
- connector
- connection module
- fixing
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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
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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
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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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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
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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
- H01M50/531—Electrode connections inside a battery casing
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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
A battery connection module is used for connecting a plurality of batteries side by side and comprises an insulation frame arranged on the batteries, a plurality of confluence connecting pieces assembled on the insulation frame and a circuit board arranged on the insulation frame and provided with a plurality of conductive through holes, wherein the confluence connecting pieces comprise an electrode connecting piece and a circuit board connecting piece, the electrode connecting piece is electrically connected with the electrodes of at least two adjacent batteries, and the circuit board connecting piece is provided with a fixing part for fixing the confluence connecting piece on the insulation frame and at least one pressure pin which protrudes out of the fixing part and is pressed in the corresponding conductive through hole of the circuit board.
Description
Technical Field
The present invention relates to a battery connection module, and more particularly, to a battery connection module with a simple process.
Background
For example, U.S. patent publication No. US2010/0124693a1 discloses a battery module including a plurality of battery cells arranged side by side, a circuit board for managing batteries, and a plurality of bus bars electrically connected to the plurality of battery cells, respectively, and each of the bus bars includes a connection portion. The circuit board is electrically connected with the battery units by welding the connecting parts of the bus bars to the circuit board.
Similarly, for example, U.S. Pat. No. US8941386 (chinese patent counterpart CN201080048799.1) discloses a bus bar for battery connection in which a voltage detection terminal integrally formed with the bus bar is received in a groove of a resin frame, and then the top of the voltage detection terminal is protruded from a through hole of a printed circuit board and soldered to a conductor of the printed circuit board, so that the printed circuit board is electrically connected to the battery.
However, the plurality of bus bars and the circuit board in the prior art are connected by soldering, which is not only complicated in process, but also easily damages electronic components on the circuit board due to careless soldering operation.
Disclosure of Invention
It is therefore one of the objects of the present invention to provide a battery connection module which is simple in manufacturing.
Therefore, in some embodiments, the battery connection module of the present invention is configured to connect a plurality of batteries side by side, and includes an insulating frame disposed on the plurality of batteries, a plurality of bus connectors assembled to the insulating frame, and a circuit board disposed on the insulating frame and having a plurality of conductive through holes, where the bus connector includes an electrode connector and a circuit board connector, the electrode connector electrically connects electrodes of two adjacent batteries, and the circuit board connector has a fixing portion for fixing the bus connector to the insulating frame and at least one press pin protruding from the fixing portion and press-connected to the corresponding conductive through hole of the circuit board.
In some embodiments, the electrode connecting member of the bus bar connecting member has two electrode connecting portions, a separating portion, and a first buffer section and a second buffer section which are protruded, and the electrode connecting member has a slit, the two electrode connecting portions are connected by the first buffer section and are respectively located at both sides of the first buffer section, the two electrode connecting portions are respectively electrically connected to electrodes of two adjacent batteries, the separating portion is connected to one of the electrode connecting portions by the second buffer section, the separating portion and one of the electrode connecting portions are respectively located at both sides of the second buffer section, the separating portion is spaced apart from the other electrode connecting portion by the slit, and the fixing portion of the circuit board connecting member is connected to the separating portion.
In some embodiments, the slit separates the first and second buffer sections.
In some embodiments, the fixing portion of the circuit board connector of the bus bar connector has a soldering portion extending toward the separating portion, the soldering portion being adapted to be soldered to the separating portion of the electrode connector.
In some embodiments, the circuit board connector of the bus bar connector is a copper-based metal material and the electrode connector is an aluminum-based metal material.
In some embodiments, the electrode connector is a multi-layer composite aluminum sheet.
In some embodiments, the bus bar connector further includes a bridge connecting the fixing portion of the circuit board connector and the separating portion of the electrode connector by soldering.
In some embodiments, the circuit board connector of the bus bar connector is a copper-based metal material and the electrode connector is an aluminum-based metal material.
In some embodiments, the electrode connector is a multi-layer composite aluminum sheet and the bridging member is a piece of aluminum.
In some embodiments, the battery connection module further includes at least one sensor assembly, the sensor assembly includes a sensor and two wire adapters, the sensor is attached to the separating portion of the electrode connector of one of the bus connectors, the sensor has two wires electrically connected to the two wire adapters, respectively, and the wire adapters have a positioning portion fixed to the insulating frame and at least one press pin protruding from the positioning portion and press-connected to the corresponding conductive through hole of the circuit board.
In some embodiments, the battery connection module further includes two output electrode members, each of the output electrode members includes an electrode connector and a circuit board connector, and the circuit board connector has a fixing portion for fixing the output electrode member to the insulating frame and at least one press pin protruding from the fixing portion and press-connected to the corresponding conductive through hole of the circuit board.
In some embodiments, the insulating frame includes a plurality of receiving grooves and a plurality of fixing grooves, the fixing grooves are configured to receive therein the fixing portions of the circuit board connectors of the corresponding bus bar connectors, and the electrode connectors of the bus bar connectors are movably received in the receiving grooves, respectively.
In some embodiments, the inner side wall of the accommodating groove is further formed with a stop portion for limiting the pressing stroke of the bus bar connector.
In some embodiments, a dust-proof rod is disposed in each receiving groove and is located in the slits of the plurality of confluence connectors without interfering with the slits.
The invention has at least the following effects: the structure of the pressure pins of the circuit board connecting pieces can be pressed in the corresponding conductive through holes of the circuit board, so that the confluence connecting pieces and the circuit board can be directly assembled and form electric connection without welding, the manufacturing process can be simplified, and the risk of element damage caused by the welding process is avoided.
Furthermore, the separating part of the electrode connecting piece and the two electrode connecting parts are separated from each other through the structure of the cutting seam and the second buffer section, so that the influence of the separating part and the circuit board connecting piece or the sensor connected to the separating part on the displacement and deformation of the two electrode connecting parts can be greatly reduced.
Furthermore, the sensor component can be pressed in the corresponding conductive through hole of the circuit board through the pressing pins of the wire adapters, so that the sensor can be electrically connected with the circuit board without welding, and can be pressed in the circuit board through the wire adapters and the bus connecting piece, and the manufacturing process is simplified.
Furthermore, since the bus bar connecting piece has a combination of metals of different materials, electrode welding of the corresponding battery and electrical connection of the circuit board can be facilitated, and fixing action and conductivity can be increased.
Drawings
Other features and effects of the present invention will be apparent from the embodiments with reference to the accompanying drawings, in which:
fig. 1 is a perspective view of a battery connection module according to a first embodiment of the present invention connecting a plurality of batteries side by side;
FIG. 2 is an exploded perspective view of the first embodiment with a plurality of side-by-side batteries;
FIG. 3 is an exploded view of the first embodiment, illustrating an insulating frame and a plurality of bus connectors assembled to the insulating frame;
FIG. 4 is an exploded perspective view of the first embodiment illustrating the structure of the insulating frame;
FIG. 5 is an exploded perspective view of the first embodiment illustrating details of the bus connectors;
FIG. 6 is a perspective view of the first embodiment illustrating the structure of the bus bar coupler;
FIG. 7 is an exploded perspective view of the first embodiment illustrating another aspect of the bus connector;
FIG. 8 is a perspective view of the first embodiment illustrating the structure of the bus bar coupler;
FIG. 9 is a partial perspective view of the first embodiment illustrating the bus bar coupler being assembled to the insulating frame;
fig. 10 is an exploded perspective view of the first embodiment, illustrating the manner in which an output electrode member is provided;
fig. 11 is a perspective view of the first embodiment, illustrating the structure of the output electrode member;
FIG. 12 is an exploded perspective view of the first embodiment illustrating the details of a sensor assembly;
FIG. 13 is a perspective view of the first embodiment illustrating the sensor assembly assembled to the bus connector;
FIG. 14 is a partial perspective view of the first embodiment illustrating the bus connector and the sensor assembly assembled to the insulating frame;
fig. 15 is a perspective view of a second embodiment of a battery connection module of the present invention connecting a plurality of side-by-side batteries and an electrical connector;
FIG. 16 is an exploded view of the second embodiment, a plurality of side-by-side batteries and the electrical connector;
FIG. 17 is an exploded view of the second embodiment illustrating an insulating frame and bus connectors assembled to the insulating frame;
FIG. 18 is an exploded perspective view of the second embodiment illustrating the structure of the insulating frame;
FIG. 19 is an exploded perspective view of the second embodiment illustrating details of the bus connectors;
FIG. 20 is a perspective view of the second embodiment illustrating the structure of the bus bar coupler;
FIG. 21 is an exploded perspective view of the second embodiment illustrating another aspect of the bus connector;
FIG. 22 is a perspective view of the second embodiment illustrating the structure of the bus bar coupler;
FIG. 23 is a partial perspective view of the second embodiment illustrating the bus bar coupler being assembled to the insulating frame;
fig. 24 is an exploded perspective view of the second embodiment, illustrating the manner in which an output electrode member is provided;
fig. 25 is a perspective view of the second embodiment, illustrating the structure of the output electrode member;
FIG. 26 is an exploded perspective view of the second embodiment illustrating the details of a sensor assembly;
FIG. 27 is a perspective view of the second embodiment illustrating the sensor assembly assembled to the bus connector; and
FIG. 28 is a partial perspective view of the second embodiment illustrating the assembly of the bus connector and the sensor assembly to the insulating frame.
Wherein the reference numerals are as follows:
10 Battery connection module
1 insulating frame
11 storage tank
111 stop part
12 fixed slot
13 trip
14 through hole
15 locking external member
16 heat dissipation holes
17 dust-proof rod
18 convex column
2 confluence connecting piece
21 electrode connecting piece
211 electrode connection part
212 divider
213 first buffer section
214 slitting
215 second buffer section
22 circuit board connector
221 fixed part
221a interference bump
222 press-connection pin
223 welding part
23 bridge piece
3 Circuit board
31 conductive via
32 through hole
33 coupling hole
4 sensor assembly
41 sensor
411 lead wire
42 wire adapter
421 locating part
421a interference bump
422 pressure welding pin
423 extension part
43 accommodating part
431 accommodating hole
5 output electrode member
51 electrode connecting piece
511 electrode connection part
512 division part
514 slitting
515 buffer section
516 lead-out part
517 pad
52 circuit board connector
521 fixed part
521a interference bump
522 crimping leg
523 weld
20 cell
201 electrode
30 electric connector
Detailed Description
Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.
Referring to fig. 1 and 2, a first embodiment of a battery connection module 10 according to the present invention is adapted to connect a plurality of batteries 20 side by side, and includes an insulating frame 1, a plurality of bus connectors 2, two output electrodes 5, a circuit board 3 and two sensor modules 4. The insulating frame 1 is disposed on the plurality of batteries 20, and the plurality of bus connectors 2 and the two output electrode members 5 are assembled to the insulating frame 1. The circuit board 3 is disposed on the insulating frame 1 and has a plurality of conductive through holes 31 and a plurality of through holes 32; each conductive through hole 31 of the circuit board 3 is a conductive circuit that is covered with conductive metal on the inner wall of the hole and is connected to the circuit board 3, and the circuit board 3 may be provided with electronic components.
Referring to fig. 3 and 4, the insulating frame 1 includes a plurality of receiving grooves 11, a plurality of fixing grooves 12, a plurality of hooks 13, and a plurality of through holes 14 and locking members 15. The plurality of bus connectors 2 and the two output electrodes 5 are respectively accommodated in the plurality of accommodating grooves 11 and fixed to the insulating frame 1 by a plurality of fixing grooves 12 (a detailed fixing method thereof will be described later), the plurality of bus connectors 2 and the two output electrodes 5 are respectively welded to the electrodes 201 of the plurality of batteries 20, and the plurality of hooks 13 are used to fix the battery connection module 10 to a battery case (not shown). When the circuit board 3 is disposed on the insulating frame 1, the through holes 32 of the circuit board 3 correspond to the through holes 14 of the insulating frame 1, and the locking members 15 are respectively sleeved in the through holes 14 and used for locking bolts (not shown) so that the circuit board 3 is fixed on the insulating frame 1; these locking sleeves 15 may be metal sleeves with internal threads. The inner side walls of the two sides in each receiving groove 11 are further formed with a stopper 111, the stopper 111 is a flange protruding from the inner side wall of the receiving groove 11, and a plurality of stoppers 111 are located below the receiving groove 11 and used for limiting the pressing stroke of each bus bar connector 2 and the two output electrode members 5 to prevent the battery 20 from being over-pressed.
Referring to fig. 5 and 6, each bus bar connector 2 includes an electrode connector 21 and a circuit board connector 22 connected to each other. In one embodiment, the electrode connecting member 21 has two electrode connecting portions 211, a separating portion 212, and a first buffer section 213 and a second buffer section 215 which are protruded, and the electrode connecting member 21 is provided with a slit 214. In one embodiment, the electrode connection member 21 is formed as a sheet, two electrode connection parts 211 are connected by a first buffer section 213 to be located at both sides of the first buffer section 213, a partition part 212 is connected with one electrode connection part 211 by a second buffer section 215 to be located at both sides of the second buffer section 215, and the partition part 212 is spaced apart from the other electrode connection part 211 by a slit 214, and the first buffer section 213 is also spaced apart from the second buffer section 215 by the slit 214. The circuit board connector 22 is provided between the electrode connector 21 and the circuit board 3. In one embodiment, the circuit board connector 22 has a fixing portion 221 and two press pins 222. In one embodiment, the fixing portion 221 is a plate-shaped structure and interference protrusions 221a are formed on two sides of the fixing portion 221, and the two pressing pins 222 protrude upward from the top edge of the fixing portion 221. The fixing portion 221 has a soldering portion 223, and the soldering portion 223 extends from the fixing portion 221 to the separating portion 212 for being soldered to the separating portion 212 of the electrode connector 21, so that the circuit board connector 22 is connected to the electrode connector 21. The bus bar connector 2 shown in fig. 7 and 8 has substantially the same structure as that shown in fig. 5 and 6, but the direction of the partition 212 and the direction of the slit 214 are opposite to each other.
In the electrode connecting member 21 of the present embodiment, the separating portion 212 and the two electrode connecting portions 211 are separated from each other by the second buffer section 215 and the slit 214, and each forms a relatively independent plate portion, so that when the circuit board connecting member 22 is mounted on the separating portion 212, the influence of the displacement and deformation of the two electrode connecting portions 211 on the circuit board connecting member 22 during the process can be greatly reduced.
Referring to fig. 9, each of the bus bar connectors 2 is assembled to the insulating frame 1, the fixing portion 221 of the circuit board connector 22 is received in the corresponding fixing groove 12, and the plurality of interference protrusions 221a are fixed to the corresponding fixing groove 12 in an interference manner, the bus bar connector 2 is positioned in the insulating frame 1 by fixing the circuit board connector 22 to the corresponding fixing groove 12, the electrode connector 21 is movably received in the corresponding receiving groove 11, and the two electrode connectors 211 are respectively welded to the electrodes 201 (see fig. 2) of the two adjacent batteries 20 to form an electrical connection, thereby achieving the purpose of connecting the plurality of batteries 20 in series or in parallel. Referring to fig. 2, the two press pins 222 of the circuit board connector 22 can be pressed into the corresponding conductive through holes 31 of the circuit board 3, so that the bus connector 2 and the circuit board 3 are electrically connected. Due to the matching and design of the two press pins 222 and the corresponding conductive through holes 31, the bus bar connector 2 does not need to be electrically connected with the circuit board 3 by soldering, which helps to simplify the manufacturing process.
In the embodiment, the circuit board connector 22 is made of copper-based metal material, the electrode connector 21 is made of aluminum-based metal material, and more specifically, the circuit board connector 22 is made of phosphor bronze, and the electrode connector 21 is a multi-layer composite aluminum sheet. Since the electrode 201 of the plurality of cells 20 is made of aluminum, the electrode connecting member 21 and the electrode 201 are made of the same metal material and are easily welded, and there is no problem that welding of dissimilar metals is difficult due to different welding melting points, and furthermore, since the structure and material of the multi-layer composite aluminum sheet are soft, the electrode connecting member 21 is easily pressed on the electrode 201 of the cell 20 in the manufacturing process to facilitate welding, and the first buffer section 213 of the electrode connecting member 21 can reduce the influence or interference of the electrode connecting members 211 on the left and right sides during pulling. The copper-based metal circuit board connecting member 22 is made of a hard material, which is helpful to be inserted into the fixing groove 12 to firmly fix the bus bar connecting member 2 to the insulating frame 1, and the copper-based metal circuit board connecting member 22 and the conductive through hole 31 are made of the same or similar copper-based metal, which can increase the conductivity and the current conduction efficiency.
Referring to fig. 2, 10 and 11, the two output electrode elements 5 are located on the outermost two batteries 20, and each output electrode element 5 includes an electrode connector 51, a circuit board connector 52 and a welding pad 517. The electrode connecting member 51 has an electrode connecting portion 511, a separating portion 512, a slit 514, a bulged buffer section 515, and a lead portion 516. The lead-out portion 516 extends outwards from the electrode connecting portion 511 and is used for conducting current through an external wire or conductor, the separating portion 512 is connected with the electrode connecting portion 511 through the buffer section 515, the separating portion 512 and the electrode connecting portion 511 are respectively located at two sides of the buffer section 515, the separating portion 512 and the lead-out portion 516 are spaced apart through the cutting seam 514, so that the separating portion 512 forms a relatively independent board portion, and the circuit board connecting member 52 has a fixing portion 521 and two press pins 522. The fixing portion 521 fixes the output electrode 5 to the insulating frame 1 and has interference protrusions 521a formed on two sides thereof, so that the circuit board connector 52 is fixed to the corresponding fixing groove 12, the two press pins 522 protrude from the fixing portion 521 and press-contact with the corresponding conductive through holes 31 of the circuit board 3, the fixing portion 521 has a soldering portion 523, and the soldering portion 523 solders the circuit board connector 52 to the separating portion 512. In the present embodiment, the electrode connector 51 and the circuit board connector 52 are made of copper, and the soldering pad 517 is made of aluminum and has a circular shape, so that the electrode connecting portion 511 can be soldered to the electrode 201 of the outermost battery 20 through the soldering pad 517, thereby overcoming the problems of different melting points and difficulty in soldering of dissimilar metals. Because the two outermost output electrode elements 5 are used for conducting current, the material thereof is mainly copper to improve the electrical conductivity, and the two outermost output electrode elements 5 respectively lead out the positive electrode and the negative electrode.
Referring to fig. 2, 12 and 13, the sensor assembly 4 includes a sensor 41 and two wire adapters 42. The sensor 41 is disposed on the partition 212 of the electrode connecting member 21 of one of the bus connecting members 2, and in the present embodiment, the sensor 41 may be attached to the partition 212 of the electrode connecting member 21 by welding, thermal conductive adhesive, or the like. The sensor 41 has two wires 411 electrically connected to the two wire adapters 42, each wire adapter 42 has a positioning portion 421, a press pin 422 and an extending portion 423, the positioning portion 421 is a sheet structure and has interference bumps 421a formed on two sides, the press pin 422 protrudes upward from the top edge of the positioning portion 421, the extending portion 423 extends from the positioning portion 421 toward the corresponding wire 411, and the wire 411 is welded to the extending portion 423, so that the sensor 41 is connected to the wire adapter 42. In one embodiment, the sensor 41 is a Negative Temperature Coefficient thermistor (NTC) sensor. In the embodiment, the wire 411 is surface-welded to the extension 423 of the wire adaptor 42. In another embodiment, a through hole may be provided on the extension portion 423 of the wire adaptor 42, and the wire 411 is inserted into the through hole on the extension portion 423 by using a through hole welding type combination.
In combination with fig. 14, in a further aspect, the sensor 41 is disposed on the separating portion 212, the positioning portion 421 of each wire adapter 42 is accommodated in the corresponding fixing groove 12, the interference protrusion 421a of the positioning portion 421 and the fixing groove 12 are mutually interfered and fixed, and the press-connecting pin 422 of the wire adapter 42 is pressed in the corresponding conductive through hole 31 of the circuit board 3, so that the sensor 41 is electrically connected to the circuit board 3. The sensor 41 can collect and sense the temperature of the bus connector 2 and transmit the temperature signal to the circuit board 3 through two wire adapters 42. In addition, since the partition portion 212 of the electrode connecting member 21 forms a relatively independent plate portion, when the sensor 41 is mounted on the partition portion 212, the influence of the displacement and deformation of the two electrode connecting portions 211 on the sensor 41 can be greatly reduced.
Referring to fig. 15 to 18, a second embodiment of the battery connection module 10 of the present invention is substantially the same as the first embodiment, however, in the second embodiment, the insulating frame 1 is further formed with a plurality of heat dissipation holes 16 and a plurality of dust-proof rods 17. The heat dissipation holes 16 are used for dissipating heat energy dissipated by the operation of the batteries 20, and the dust-proof rods 17 are respectively disposed in the accommodating grooves 11 for accommodating the confluence connectors 2 and located in the slits 214 of the confluence connectors 2 without interfering with the slits 214, so as to prevent most of dust or foreign matters from falling into the batteries 20 below through the slits 214. In the embodiment, in addition to the through hole 14 and the locking kit 15, the insulating frame 1 further has a protrusion 18, and the circuit board 3 further has a coupling hole 33 for coupling the protrusion 18 of the insulating frame 1, so as to dispose the circuit board 3 on the insulating frame 1. Furthermore, the circuit board 3 of the battery connection module 10 of the present invention is further provided with an electrical connector 30, the combination of the battery connection module 10, the plurality of batteries 20 and the electrical connector 30 is a battery pack, and the circuit board 3 provided with electronic components can be used as a battery management system or a subsystem of the battery management system, so that the battery pack can be applied to a vehicle battery of an electric vehicle or a hybrid electric vehicle. The plurality of Battery packs can be electrically connected to a Battery Management System (BMS) through a plurality of electrical connectors 30, respectively, to achieve the purpose of Battery Management, so as to improve the safety of the vehicle.
In addition, referring to fig. 19 to 20, each of the bus bar connectors 2 includes an electrode connector 21, a circuit board connector 22 and a bridge 23. The bridge 23 connects the fixing part 221 of the circuit board connection member 22 and the separating part 212 of the electrode connection member 21 by soldering. In the embodiment, the circuit board connector 22 is made of copper-based metal material, the electrode connector 21 is made of a multi-layer composite aluminum sheet, and the bridging element 23 is made of aluminum (or solid aluminum), because the multi-layer composite aluminum sheet of the electrode connector 21 has a relatively soft structure and material and is sensitive to temperature, it is difficult and costly to weld directly to the circuit board connector 22 of different material, however, the bridging element 23 of the same material is welded to the electrode connector 21 first, and then the circuit board connector 22 is welded to the bridging element 23, so that the electrode connector 21, the circuit board connector 22 and the bridging element 23 are easily connected together, and welding means such as ultrasonic welding or laser welding, which can be used for mass production and has relatively low cost, can be used. Referring to fig. 23, when the fixing portions 221 of the circuit board connectors 22 are inserted into the corresponding fixing grooves 12, the bus connector 2 is fixed to the insulating frame 1 and the electrode connectors 21 are accommodated in the accommodating grooves 11. The bus bar connector 2 shown in fig. 21 and 22 has substantially the same structure as that shown in fig. 19 and 20, but the direction of the partition 212 and the direction of the slit 214 are opposite.
In addition, referring to fig. 16, 24 and 25, in the embodiment of the two output electrode members 5 located above the two outermost batteries 20, the electrode connecting member 51 and the circuit board connecting member 52 are made of copper, and the soldering pads 517 are made of aluminum and have a rectangular shape, so that the electrode connecting portion 511 is soldered to the electrode 201 of the outermost battery 20 through the soldering pads 517, thereby overcoming the problem that soldering is difficult due to different melting points of dissimilar metals. Furthermore, the soldering portion 523 of the circuit board connector 52 is directly soldered to the electrode connecting portion 511.
In the present embodiment, referring to fig. 26, 27 and 28, the sensor assembly 4 further includes a receiving part 43, the receiving part 43 is disposed on the partition 212 of the electrode connector 21 of the bus connector 2 by welding or the like, the receiving part 43 is formed with a receiving hole 431 for receiving the sensor 41, and the sensor 41 can be fixed in the receiving hole 431 by a thermal conductive adhesive, an adhesive, or the like. Of course, the partition 212 may be directly curled to form a receiving hole for receiving the sensor 41 therein, without the structure of the receiving part 43, so as to achieve the purpose of disposing the sensor 41 on the bus connector 2.
To sum up, each bus bar connector 2 of the battery connection module 10 of the present invention can be pressed into the corresponding conductive through hole 31 of the circuit board 3 by the structure of the press pin 222 of the circuit board connector 22, so that each bus bar connector 2 and the circuit board 3 can be directly assembled and electrically connected without a soldering step, thereby simplifying the manufacturing process and avoiding the risk of component damage caused by the soldering process. Furthermore, the separating structure between the separating portion 212 of the electrode connecting member 21 and the two electrode connecting portions 211 through the slits 214 and the second buffer sections 215 can greatly reduce the influence on the separating portion 212, the circuit board connecting member 22 connected to the separating portion 212, and the sensor 41 caused by the displacement and deformation of the two electrode connecting portions 211. In addition, the sensor assembly 4 is designed by the press-connecting pins 422 of the wire adapters 42, so that the sensor 41 can be electrically connected with the circuit board 3 without welding, and can be pressed to the circuit board 3 together with the bus connector 2 by the wire adapters 42, which helps to simplify the manufacturing process. More importantly, since the bus bar connector 2 of the first and second embodiments has a metal combination of different materials, the electrode soldering of the corresponding battery 20 and the electrical connection of the circuit board 3 can be facilitated, and the fixing action and the conductivity can be increased, thereby achieving the object of the present invention.
However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the contents of the specification of the present invention are still included in the scope covered by the present invention.
Claims (14)
1. A battery connection module is used for connecting a plurality of batteries side by side and comprises an insulation frame arranged on the batteries, a plurality of confluence connecting pieces assembled on the insulation frame and a circuit board arranged on the insulation frame and provided with a plurality of conductive through holes, wherein the confluence connecting pieces comprise an electrode connecting piece and a circuit board connecting piece, the electrode connecting piece is electrically connected with the electrodes of two adjacent batteries, the circuit board connecting piece is provided with a fixing part for fixing the confluence connecting piece on the insulation frame and at least one pressure pin protruding out of the fixing part and pressed in the corresponding conductive through hole of the circuit board, the electrode connecting piece of the confluence connecting piece is provided with two electrode connecting parts and a separating part which are of an integrated structure, the electrode connecting piece is provided with a cutting slot, and the separating part is connected with one of the electrode connecting parts, the separating part and the other electrode connecting part are separated by the cutting seam, and the fixing part of the circuit board connecting piece is connected with the separating part.
2. The battery connection module according to claim 1, wherein the electrode connection member of the bus bar connection member has a first buffer section and a second buffer section that are bulged, the two electrode connection parts are connected by the first buffer section to be located at both sides of the first buffer section, respectively, and the two electrode connection parts are electrically connected to the electrodes of two adjacent batteries, respectively, the partition part and one of the electrode connection parts are connected by the second buffer section, and the partition part and the electrode connection part are located at both sides of the second buffer section, respectively.
3. The battery connection module of claim 2, wherein the slit separates the first buffer section and the second buffer section.
4. The battery connection module according to claim 2 or 3, wherein the fixing portion of the circuit board connector of the bus bar connector has a soldering portion extending toward the dividing portion, the soldering portion being adapted to be soldered to the dividing portion of the electrode connector.
5. The battery connection module according to claim 4, wherein the circuit board connector of the bus bar connector is a copper-based metal material, and the electrode connector is an aluminum-based metal material.
6. The battery connection module according to claim 5, wherein the electrode connection member is a multi-layered composite aluminum sheet.
7. The battery connection module according to claim 2 or 3, wherein the bus bar connector further comprises a bridge member connecting the fixing portion of the circuit board connector and the separating portion of the electrode connector by soldering.
8. The battery connection module according to claim 7, wherein the circuit board connector of the bus bar connector is a copper-based metal material, and the electrode connector is an aluminum-based metal material.
9. The battery connection module according to claim 8, wherein the electrode connecting member is a multi-layered composite aluminum sheet and the bridging member is a piece of aluminum.
10. The battery connection module according to claim 2 or 3, further comprising at least one sensor assembly, wherein the sensor assembly comprises a sensor and two lead adapters, the sensor is attached to the separation portion of the electrode connection member of one of the bus connection members, the sensor has two leads electrically connected to the two lead adapters, respectively, and the lead adapters have a positioning portion fixed to the insulating frame and at least one press pin protruding from the positioning portion and press-connected to the corresponding conductive through hole of the circuit board.
11. The battery connection module according to claim 1, further comprising two output electrode members including an electrode connection member and a circuit board connection member, the circuit board connection member of the output electrode member having a fixing portion fixing the output electrode member to the insulating frame and at least one press-connecting pin protruding from the fixing portion of the circuit board connection member of the output electrode member and press-connected to the corresponding conductive through-hole of the circuit board.
12. The battery connection module according to claim 3, wherein the insulating frame comprises a plurality of receiving grooves and a plurality of fixing grooves, the fixing grooves are configured to receive the fixing portions of the circuit board connectors of the corresponding bus bar connectors, and the electrode connectors of the bus bar connectors are respectively movably received in the plurality of receiving grooves.
13. The battery connection module according to claim 12, wherein the inner sidewall of the receiving groove is further formed with a stopper for limiting a pressing stroke of the bus bar connector.
14. The battery connection module of claim 12, wherein each receiving groove has a dust bar disposed therein and located in the slits of the plurality of the bus bar connectors without interfering with the slits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341466.7A CN107403899B (en) | 2016-05-20 | 2016-05-20 | Battery connection module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341466.7A CN107403899B (en) | 2016-05-20 | 2016-05-20 | Battery connection module |
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| Publication Number | Publication Date |
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| CN107403899A CN107403899A (en) | 2017-11-28 |
| CN107403899B true CN107403899B (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610341466.7A Active CN107403899B (en) | 2016-05-20 | 2016-05-20 | Battery connection module |
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Cited By (2)
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| WO2022096207A1 (en) * | 2020-11-03 | 2022-05-12 | Diehl Ako Stiftung & Co. Kg | Battery cell contacting device, and battery module comprising such a battery cell contacting device |
| DE102022111311A1 (en) | 2022-01-31 | 2023-08-03 | Diehl Ako Stiftung & Co. Kg | Cell contacting system for a battery module and method for producing such a cell contacting system |
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| CN109301146B (en) * | 2018-10-26 | 2021-10-15 | 蚌埠金实科技有限公司 | Aluminum bar for new energy battery and forming method thereof |
| JP2020191176A (en) * | 2019-05-20 | 2020-11-26 | 矢崎総業株式会社 | Conductive module |
| CN210136942U (en) * | 2019-08-05 | 2020-03-10 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN112310542B (en) * | 2019-12-27 | 2022-01-11 | 宁德时代新能源科技股份有限公司 | Connecting assembly, battery module, battery pack, device and mounting method |
| CN211320199U (en) * | 2019-12-31 | 2020-08-21 | 宁德时代新能源科技股份有限公司 | Sampling assembly, battery module, battery pack and device |
| CN111129412B (en) * | 2020-03-31 | 2020-12-29 | 江苏时代新能源科技有限公司 | Connecting assembly, battery module, device, and method for manufacturing connecting assembly |
| CN113871801B (en) * | 2020-06-30 | 2023-03-14 | 比亚迪股份有限公司 | Battery module, battery and battery package |
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| CN107403899A (en) | 2017-11-28 |
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