TWI617069B - Battery device and battery connection module - Google Patents

Abstract

A battery device includes a battery pack, a battery connection module, a battery management circuit board, and an electrical connection unit. The battery connection module includes an insulation frame having a mating side, a plurality of electrode connectors, a plurality of transfer conductive members, and a transit circuit board. The electrode connector is disposed on the insulating frame and connected to the electrode of the battery pack. The conductive conductive members are respectively disposed on the insulating frame, and each of the conductive conductive members has a fixing portion embedded in the insulating frame, an inner connecting portion exposing the insulating frame and connected to the corresponding electrode connecting member, and an extending portion The outer connecting section of the mating side of the insulating frame. The transit circuit board is fixed to the mating side of the insulating frame and connected to the outer connecting portion of the transfer conductive member. The electrical connection unit connects the battery management circuit board and the transit circuit board, so that the battery management circuit board is detachably connected to the transit circuit board.

Description

Battery device and battery connection module

The invention relates to a battery device, in particular to a rechargeable battery device and a battery connection module.

A generally rechargeable battery pack is composed of a plurality of batteries. In order to monitor the operation status of each battery and to optimize the performance of the battery pack, it is common to connect a battery pack to a battery management system (BMS). The functions of the existing battery management system include battery parameter detection, battery status estimation, online fault diagnosis, battery safety control and alarm, charging control, battery balancing, thermal management, networking, information storage, electromagnetic compatibility, and the like.

The board, usually with a battery management system, is soldered directly to the battery pack. For example, a secondary battery pack disclosed in US Pat. No. 2010/0124693 A1 is welded to a battery electrode by a plurality of bus-bars and welded to a battery management circuit board. Since the bus bar needs to be soldered to the battery electrode and then soldered to the battery management circuit board, it is multiplexed and complicated in the process, and if the welding operation is inadvertent, the electronic components on the battery management circuit board are damaged, and the entire battery pack is scrapped together. For example, a battery accommodating case is disclosed in the Chinese patent CN 03106846.4 (U.S. Patent No. 7,141,330), and an embodiment of accommodating a battery is disclosed. The embodiment connects the electrodes of each battery by a plurality of tabs, and the plurality of leads The tabs are connected to a control circuit. The control circuit includes a battery side panel disposed on the battery side, a connector side panel spaced from the battery side panel, and a plurality of needles for interconnecting the two panels. Since these leads need to be individually soldered to the tabs and the battery side plates, wiring and soldering operations are complicated. In addition, the battery side plate and the connector side plate are welded to each other through the needle, which may not be a problem in a small battery pack, but on a larger battery pack (such as a car battery), the control system and the battery pack are expensive, and if the battery is aged In the case of damage, the entire group needs to be replaced and the maintenance cost is high.

Accordingly, it is an object of the present invention to provide a battery device that solves the aforementioned problems.

Accordingly, another object of the present invention is to provide a battery connection module that is conveniently mounted to a battery pack.

Therefore, in some embodiments, the battery device of the present invention comprises a battery pack, a battery connection module, a battery management circuit board, and an electrical connection unit. The battery pack includes a plurality of batteries each having two electrodes. The battery connection module includes an insulation frame having a mating side, a plurality of electrode connectors, a plurality of transfer conductive members, and a transit circuit board. The electrode connectors are disposed on the insulating frame and connected to the electrodes of the battery pack. The conductive conductive members are respectively disposed on the insulating frame, and each of the conductive conductive members has a fixing portion embedded in the insulating frame, and the insulating frame is exposed and connected to the corresponding electrode connecting member. The inner connecting section and an outer connecting section extending from the mating side of the insulating frame. The adapter circuit board is fixed to the mating side of the insulating frame and connected to the outer connecting portion of the conductive conductive members. The electrical connection unit is connected to the battery management circuit board and the transit circuit board, so that the battery management circuit board is detachably connected to the transit circuit board.

In some embodiments, the plurality of electrode connectors are a bus bar connector, each bus bar connector having at least two electrode connections for respectively connecting electrodes of adjacent cells, and at least one arched buffer segment Connect adjacent electrode connections.

In some embodiments, two of the electrode connectors are output connectors and the rest are bus connectors, and the battery connector module further includes two extension pieces respectively connecting the two output connectors and protruding from the Mating side.

In some embodiments, the battery connection module further includes at least one sensing unit disposed on the insulating frame, the sensing unit includes a sensor attached to one of the bus connecting connectors, and two wires to connect The sensor and the transit circuit board.

In some implementations, the sensing unit further includes two clamping terminals connected to the ends of the two wires and soldered to the transit circuit board.

In some implementations, the insulating frame has at least one wireway to receive the wires of the sensing unit.

In some embodiments, the insulating frame further has a bottom side connected to the battery pack, a top side opposite to the bottom side, and a plurality of receiving slots respectively accommodating the electrode connecting members, and the matching The connecting side is a side of the outer circumference of the insulating frame, and each receiving groove communicates with the bottom side and the top side.

In some embodiments, the inner connecting segments of each of the conductive conductive members extend into the corresponding receiving slots and are soldered to the corresponding electrode connectors.

In some implementations, a first stop adjacent to the bottom side and a second stop adjacent to the top side are formed on each of the opposite wall surfaces defining each of the receiving slots, the first stop and the first stop The distance between the second stoppers is greater than the thickness of the electrode connector to allow the electrode connector to move in a vertical direction upper limit position perpendicularly passing through the bottom side and the top side before being fixedly coupled to the corresponding electrode.

In some embodiments, the electrode connectors are made of an aluminum-based metal material, and the conductive members are made of a copper-based metal material.

In some implementations, the electrical connection unit includes a first connector disposed on the transit circuit board, a second connector disposed on the battery management circuit board, and a pluggable connection to the first connector a cable of the connector and the second connector.

In some embodiments, the electrical connection unit includes an insulative housing and a plurality of conductive terminals fixed to the insulative housing, each of the conductive terminals having two crimping portions at opposite ends, wherein the crimping portion is disposed The corresponding conductive hole of the transit circuit board, and the other crimping portion is disposed through the corresponding conductive hole of the battery management circuit board.

In some embodiments, the electrical connection unit includes an insulative housing and a plurality of conductive terminals fixed to the insulative housing, each of the conductive terminals having a crimping portion and a soldering portion at opposite ends, the crimping portion And a corresponding conductive hole disposed in one of the transit circuit board and the battery management circuit board, and the soldering portion is soldered to the other of the transit circuit board and the battery management circuit board.

In some embodiments, the electrical connection unit includes an insulative housing and a plurality of conductive terminals fixed to the insulative housing, each of the conductive terminals having a soldering portion and an elastic contact portion, the soldering portion being soldered to the switch One of the circuit board and the battery management circuit board, and the elastic contact portion contacts a corresponding guiding pad disposed on the other of the transit circuit board and the battery management circuit board.

The present invention has at least the following effects: by forming the battery connection module by the insulating frame, the electrode connecting member, the transfer conductive member, and the transfer circuit board, the assembly process with the battery pack can be simplified. Moreover, the battery management circuit board is detachably connected to the transit circuit board, which not only avoids damage to the battery management circuit board during soldering of the electrode, but also needs to be replaced when one of the battery pack or the battery management circuit board fails. The faulty person does not need to be scrapped as a whole, so it can save maintenance costs.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1 and FIG. 2, a first embodiment of a battery device of the present invention comprises a battery pack 1, a battery connection module 2, a battery management circuit board 3, and an electrical connection unit 4. The battery pack 1 includes a plurality of batteries (not shown) each having two electrodes (not shown).

Referring to FIG. 3 to FIG. 5 , the battery connection module 2 includes an insulating frame 21 , a plurality of electrode connecting members 22 , a plurality of conductive conductive members 24 , and a transit circuit board 25 . The insulating frame 21 has a bottom side 211 connecting the battery pack 1 (see FIG. 1), a top side 212 opposite to the bottom side 211, and a mating side 213. In an embodiment, the mating side 213 is a long side of the outer circumference of the insulating frame 21.

The electrode connectors 22 are disposed on the insulating frame 21 and connected to the electrodes of the battery pack 1. With reference to FIG. 6 and FIG. 7 , the insulating frame 21 further has a plurality of receiving slots 214 respectively accommodating the electrode connecting members 22 , and each receiving slot 214 communicates with the bottom side 211 and the top side 212 , and A first stop 215 adjacent to the bottom side 211 and a second stop 216 adjacent to the top side 212 are formed on each of the opposite wall surfaces defining each of the receiving slots 214. The distance between the first stopper 215 and the second stopper 216 is greater than the thickness of the electrode connector 22 to allow the electrode connector 22 to pass vertically through the bottom side 211 before being fixed to the corresponding electrode. The upper limit of the vertical direction D of the top side 212 moves. In this embodiment, two of the electrode connectors 22 are the output connectors 22A and the remaining plurality are the bus connectors 22B, and each of the bus connectors 22B has at least two electrode connecting portions 221 to respectively connect adjacent batteries. And an at least one arched buffer segment 222 to connect adjacent electrode connections 221 . Each of the output connecting members 22A and each of the electrode connecting portions 221 of the bus connecting member 22B is provided with a through hole 223 for penetrating the corresponding electrode. The battery connection module 2 further includes two extension pieces 23 connected to the two output connectors 22A and protruding from the mating side 213.

Referring to FIG. 5 to FIG. 7 , the conductive conductive members 24 are respectively disposed on the insulating frame 21 , and each of the conductive conductive members 24 has a fixing portion 241 embedded in the insulating frame 21 . An inner connecting portion 242 that exposes the insulating frame 21 and is connected to the corresponding electrode connecting member 22, and an outer connecting portion 243 that protrudes from the mating side 213 of the insulating frame 21 are exposed. In the present embodiment, the insulating frame 21 is formed in a buried molding manner, and the fixing segments 241 of the conductive conductive members 24 are embedded and fixed. In addition, in this embodiment, the inner connecting portion 242 of each of the conductive conductive members 24 extends into the corresponding receiving groove 214, and each of the electrode connecting members 22 has a overlapping portion 224, and the overlapping portion 224 and the corresponding portion The position of the inner connecting section 242 of the transfer conductive member 24 is matched. When the electrode connecting members 22 are mounted on the insulating frame 21, the electrode connecting members 22 are respectively placed into the corresponding receiving grooves 214 by the long sides of the insulating frame 21, and then the inner conductive members 24 are inserted. The connecting section 242 is welded to the overlapping portion 224 of the corresponding electrode connector 22. When the electrode connector 22 is soldered to the electrode of the battery pack 1, each electrode connector 22 can be moved between the first stopper 215 and the second stopper 216 at the upper limit of the vertical direction D, thereby being able to cooperate. The corresponding electrode is adjusted in position to ensure that the electrode connector 22 can be soldered to the corresponding electrode. In one embodiment, the bus bar connectors 22B may be made of an aluminum-based metal material to facilitate soldering of a homogenous metal with the aluminum-based metal electrode of the battery pack 1, such as by laser welding or ultrasonic welding. In one embodiment, the two output connectors 22A may be made of a copper-based metal material, and a spacer provided with an aluminum-based metal on the bottom surface is welded to the aluminum-based metal electrode of the battery pack 1. In one embodiment, the transfer conductive members 24 are made of a copper-based metal material to have better conductivity.

Referring to FIG. 2 to FIG. 4 , the adapter circuit board 25 is fixed to the mating side 213 of the insulating frame 21 and connected to the outer connecting portion 243 of the conductive conductive members 24 . In this embodiment, the insulating frame 21 has two clamping posts 217 protruding from the mating side 213, and the adapter circuit board 25 is provided with a card hole 251 matched with the two holding posts 217. Before the outer connecting portion 243 of the conductive conductive member 24 is soldered to the adapter circuit board 25, the two holding posts 217 are respectively inserted through the corresponding card holes 251 to connect the circuit board 25 and the insulating frame. 21 is relatively positioned, and the outer connecting sections 243 of the conductive conductive members 24 are respectively inserted into the corresponding soldering holes 252 of the adapter circuit board 25 to facilitate the soldering operation. Moreover, in the present embodiment, the adapter circuit board 25 is locked to the mating side 213 of the insulating frame 21 by two fixing components 27, and each fixing component 27 includes a bolt 271 disposed on the insulating frame 21 and a The bolt 271 is bolted to the nut 272. The adapter circuit board 25 is provided with fixing holes 254 corresponding to the bolts 271 at two positions for the corresponding bolts 271 to pass through. The adapter circuit board 25 is sandwiched and fixed between the nut 272 and the mating side 213 of the insulating frame 21 by the nut 272 being engaged with the bolt 271.

Referring to FIG. 4 and FIG. 7 , the battery connection module 2 further includes a plurality of sensing units 26 disposed on the insulating frame 21 . Each of the sensing units 26 includes a sensor 261 attached to one of the bus connectors 22B, and two wires 262 for connecting the sensor 261 and the adapter circuit board 25. The insulating frame 21 has a plurality of wire slots 218 for receiving the wires 262 of the sensing units 26, respectively. In this embodiment, each of the sensing units 26 further includes two clamping terminals 263 respectively connected to the ends of the two wires 262 and soldered to the adapter circuit board 25, and the wire clamping terminal 263 is easier to solder and transfer. The circuit board 25 can be implemented by directly omitting the wire 262 to the interposer circuit board 25, omitting the wire terminal 263. In the present embodiment, each sensor 261 is formed by a junction connector 22B connected thereto to form a chamber 225 to accommodate the sensor 261, however, the sensor 261 is attached to the bus connector. The manner of 22B can also be adhered, for example, by applying an adhesive, not limited to this embodiment. In this embodiment, the sensor 261 is a negative temperature coefficient thermistor. It can be understood that the type of the sensing unit 26 can be adjusted according to the use requirement, and the number of the sensing unit 26 can also be adjusted according to the use requirement. That is, at least one sensing unit 26 can also be implemented. Of course, the transfer circuit board 25 is formed with a predetermined circuit pattern (not shown).

Referring to FIGS. 1 and 2, the battery management circuit board 3 is formed with a predetermined circuit pattern (not shown) and mounted with electronic components 31. The battery management circuit board can be a power management unit (BMU) or a circuit board of a power management system (BMS). The electrical connection unit 4 is connected to the battery management circuit board 3 and the adapter circuit board 25, so that the battery management circuit board 3 is detachably connected to the adapter circuit board 25. In this embodiment, the electrical connection unit 4 includes a first connector 41 disposed on the transit circuit board 25, a second connector 42 disposed on the battery management circuit board 3, and a pluggable The cable 43 of the first connector 41 and the second connector 42 is connected. The guide wires of the cable 43 are not shown in the drawings, only the docking connectors 431 at both ends of the cable 43 are shown. To connect the battery management circuit board 3 to the adapter circuit board 25, connect the mating connectors 431 at both ends of the cable 43 to the first connector 41 provided on the adapter circuit board 25, and to the battery. The second connector 42 of the circuit board 3 is managed. In order to separate the battery management circuit board 3 from the adapter circuit board 25, the cable 43 may be separated from at least one of the first connector 41 and the second connector 42. Thereby, when one of the battery pack 1 or the battery management circuit board 3 fails, the battery management circuit board 3 can be detached from the transfer circuit board 25 to replace the faulty person. That is to say, only the faulty person needs to be replaced, and the whole is not scrapped, so the maintenance cost can be saved. In particular, the battery pack 1 has a certain service life, and needs to be updated after a period of use, by the battery management circuit board 3 and the transfer circuit board 25 being detachable, and then connected to the battery connection module 2 of the new battery pack 1 The transit circuit board 25 is connected to continue to use the battery management circuit board 3, reducing the cost of repurchasing the battery management circuit board 3.

In this embodiment, the electrode connecting members 22 are first mounted on the insulating frame 21, and the electrode connecting members 22 are respectively connected to the conductive conductive members 24 embedded in the insulating frame 21, and the connecting conductive members 24 are connected. The transfer circuit board 25 located on the mating side 213 of the insulating frame 21 can simplify the process of soldering the electrode connecting member 22 and the transfer circuit board 25 one by one, and the transfer conductive member 24 is first fixed to the insulating frame 21 The relative positioning with the electrode connector 22 and the adapter circuit board 25 also makes the welding work easier. Furthermore, the electrode connector 22 and the adapter circuit board 25 can be assembled with the insulating frame 21 in advance to integrally form the battery connection module 2, so that when assembled with the battery pack 1, only the through hole 223 of the electrode connector 22 is required. It can align the electrode of the battery pack 1 and fix the electrode connector 22 and the electrode, and the assembly process can be simplified, and the battery management circuit board 3 can be connected after the battery connection module 2 and the battery pack 1 are assembled. It is possible to avoid damage to the battery management circuit board 3 during soldering of the electrode.

Referring to FIG. 8 to FIG. 11 , a second embodiment of the battery device of the present invention is substantially the same as the first embodiment. However, in the embodiment, the electrical connection unit 4 includes an insulative housing 44 and a plurality of fixed bodies. The conductive terminals 45 of the insulative housing 44, each of the conductive terminals 45 has two crimping portions 451 at opposite ends, wherein a crimping portion 451 is disposed through the corresponding conductive hole 253 of the transit circuit board 25, and the other The crimping portion 451 is disposed through the corresponding conductive hole 32 of the battery management circuit board 3. When the adapter circuit board 25 and the battery management circuit board 3 are to be detached, the crimping portion 451 of the conductive terminal 45 is removed from the conductive hole 253 of the adapter circuit board 25 or the conductive layer of the battery management circuit board 3 is removed. The hole 32 is sufficient. In the present embodiment, the crimping portion 451 has a pinhole shape, but it may be, for example, a claw shape, and is not limited. It can be understood that one or more electrical connection units 4 can be set according to actual requirements, which is not limited to the embodiment.

Referring to FIG. 12 and FIG. 13, a third embodiment of the battery device of the present invention is substantially the same as the second embodiment. However, in the embodiment, each of the conductive terminals 45 has a crimping portion 451 at opposite ends. A soldering portion 452 is disposed through the corresponding conductive hole 32 of the battery management circuit board 3, and the soldering portion 452 is soldered to the switching circuit board 25. Similarly, when the adapter circuit board 25 and the battery management circuit board 3 are to be detached, the crimping portion 451 of the conductive terminal 45 may be removed from the conductive hole 32 of the battery management circuit board 3. It can be understood that, in an equivalently changed embodiment, the soldering portion 452 can also be soldered to the battery management circuit board 3, and the conductive circuit board 253 is disposed on the switching circuit board 25 (refer to the second embodiment). The same effect can be obtained by passing the crimping portion 451 through the conductive hole 253 of the interposer circuit board 25.

Referring to FIG. 14 to FIG. 17, a fourth embodiment of the battery device of the present invention is substantially the same as the second embodiment. However, in the embodiment, each of the conductive terminals 45 has a soldering portion 452 and an elastic contact portion 453. The soldering portion 452 is soldered to the battery management circuit board 3, and the elastic contact portion 453 contacts a corresponding conductive pad (not shown) provided on the transit circuit board 25. In this embodiment, both sides of the transit circuit board 25 are provided with predetermined circuit patterns. The battery management circuit board 3 and the switching circuit are electrically connected to the corresponding conductive pads of the adapter circuit board 25 by soldering the conductive terminals 45 fixed to the battery management circuit board 3 by soldering. The plate 25 is detachable. It can be understood that, in an equivalently changed embodiment, the soldering portion 452 can be soldered to the transit circuit board 25, and the corresponding conductive pads are disposed on the battery management circuit board 3, which has the same effect.

As described above, by forming the battery connecting module 2 with the insulating frame 21, the electrode connecting member 22, the transfer conductive member 24, and the transfer circuit board 25, the assembly process with the battery pack 1 can be simplified. Moreover, the battery management circuit board 3 is detachably connected to the transfer circuit board 25, not only to avoid damage to the battery management circuit board 3 during soldering of the electrode, but also when one of the battery pack 1 or the battery management circuit board 3 fails. In time, only the faulty person needs to be replaced, and the whole is not scrapped, so maintenance cost can be saved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧Battery Pack
2‧‧‧Battery connection module
21‧‧‧Insulation frame
211‧‧‧ bottom side
212‧‧‧ top side
213‧‧‧Matching side
214‧‧‧ accommodating slots
215‧‧‧ first stop
216‧‧‧second stop
217‧‧‧ card column
218‧‧‧Line slots
22‧‧‧Electrode connectors
22A‧‧‧Output connector
22B‧‧‧Connector connector
221‧‧‧Electrode connection
222‧‧‧ buffer section
223‧‧‧Perforation
224‧‧‧ lap joint
225‧‧ ‧ room
23‧‧‧Extension
24‧‧‧Transfer conductive parts
241‧‧‧ fixed section
242‧‧‧Internal connection
243‧‧‧External connection
25‧‧‧Transfer board
251‧‧‧Kakong
252‧‧‧ welding holes
253‧‧‧Electrical hole
254‧‧‧Fixed holes
26‧‧‧Sensor unit
261‧‧‧ sensor
262‧‧‧ wire
263‧‧‧Clamping terminal
27‧‧‧Fixed components
271‧‧‧ bolt
272‧‧‧ nuts
3‧‧‧Battery Management Board
31‧‧‧Electronic components
32‧‧‧Electrical hole
4‧‧‧Electrical connection unit
41‧‧‧First connector
42‧‧‧Second connector
43‧‧‧ Cable
431‧‧‧Dock connector
44‧‧‧Insulated body
45‧‧‧Electrical terminals
451‧‧‧Crimp
452‧‧‧Weld Department
453‧‧‧Flexible contact
D‧‧‧Vertical direction

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of a battery device of the present invention; FIG. 2 is a perspective view of the first embodiment of the present invention. 3 is a top view of the first embodiment; FIG. 4 is an exploded perspective view of the battery connecting module of the first embodiment; FIG. 5 is a plurality of electrode connecting members of the first embodiment. FIG. 6 is an exploded perspective view of the insulating frame and the conductive conductive member of the first embodiment; FIG. 7 is an incomplete view of the first embodiment; Figure 8 is a perspective view of a second embodiment of the battery device of the present invention; Figure 9 is a side elevational view of the second embodiment; Figure 10 is an exploded perspective view of the second embodiment; 11 is an exploded perspective view of an electrical connection unit of the second embodiment; FIG. 12 is an exploded perspective view of a third embodiment of the battery device of the present invention; and FIG. 13 is an electrical connection unit of the third embodiment. a perspective view of the battery device of the present invention; FIG. 15 is a side elevational view of the fourth embodiment; FIG. 16 is an exploded perspective view of the fourth embodiment; and FIG. 17 is an electrical connection unit of the fourth embodiment An exploded view.

Claims (24)

A battery device comprising: a battery pack comprising a plurality of batteries, each battery having two electrodes; a battery connection module comprising an insulating frame having a mating side, a plurality of electrode connecting members disposed on the insulating frame And connecting the electrodes of the battery pack, a plurality of transfer conductive members respectively corresponding to the electrode connecting members are disposed on the insulating frame, each of the conductive conductive members having a fixed portion embedded in the insulating frame, exposing the An inner connecting portion of the insulating frame and the corresponding electrode connecting member, and an outer connecting portion extending from the mating side of the insulating frame, and an adapter circuit board fixed to the mating side of the insulating frame, and Connecting the outer connecting portion of the conductive member; a battery management circuit board; and an electrical connecting unit connecting the battery management circuit board and the switching circuit board to detachably connect the battery management circuit board Board connection. The battery device of claim 1, wherein the plurality of electrode connectors are a bus bar connector, each bus bar connector having at least two electrode connections for respectively connecting electrodes of adjacent cells, and at least one arch The buffer section is connected to the adjacent electrode connection. The battery device of claim 2, wherein two of the electrode connectors are output connectors and the rest are bus connectors, the battery connector module further includes two extension pieces respectively connected to the two output connectors Protruding out of the mating side. The battery device of claim 2, wherein the battery connection module further comprises at least one sensing unit disposed on the insulating frame, the sensing unit including a sensor attached to one of the bus connecting connectors, and Two wires are connected to the sensor and the transit circuit board. The battery device of claim 4, wherein the sensing unit further comprises two clamping terminals connected to the ends of the two wires and soldered to the transit circuit board. The battery device of claim 5, wherein the insulating frame has at least one wire trough to receive the wires of the sensing unit. The battery device of claim 1, wherein the insulating frame further has a bottom side connected to the battery pack, a top side opposite to the bottom side, and a plurality of receiving slots respectively accommodating the electrode connecting members And the mating side is a side of the outer circumference of the insulating frame, and each receiving groove communicates with the bottom side and the top side. The battery device of claim 7, wherein the inner connecting portion of each of the conductive conductive members extends into the corresponding receiving groove and is soldered to the corresponding electrode connecting member. The battery device of claim 8, wherein a first stop adjacent to the bottom side and a second stop adjacent to the top side are respectively formed on the opposite wall surfaces defining each of the accommodating grooves, the first The distance between the one stopper and the second stopper is greater than the thickness of the electrode connector to allow the electrode connector to pass through a vertical direction upper limit of the bottom side and the top side before being fixedly connected to the corresponding electrode Bit movement. The battery device according to claim 1, wherein the electrode connecting members are made of an aluminum-based metal material, and the conductive conductive members are made of a copper-based metal material. The battery device according to any one of claims 1 to 10, wherein the electrical connection unit comprises a first connector disposed on the transit circuit board and a second connector disposed on the battery management circuit board. And a cable that is pluggably connected to the first connector and the second connector. The battery device of any one of claims 1 to 10, wherein the electrical connection unit comprises an insulative housing and a plurality of conductive terminals fixed to the insulative housing, each of the conductive terminals having two pressures at opposite ends And a crimping portion is disposed in a corresponding conductive hole of the adapter circuit board, and another crimping portion is disposed in a corresponding conductive hole of the battery management circuit board. The battery device of any one of claims 1 to 10, wherein the electrical connection unit comprises an insulative housing and a plurality of electrically conductive terminals fixed to the insulative housing, each of the electrically conductive terminals having a crimping connection at opposite ends And a soldering portion, the crimping portion is disposed in a corresponding conductive hole of the one of the switching circuit board and the battery management circuit board, and the soldering portion is soldered to the switching circuit board and the battery management circuit board another. The battery device according to any one of claims 1 to 10, wherein the electrical connection unit comprises an insulative housing and a plurality of conductive terminals fixed to the insulative housing, each of the conductive terminals having a soldering portion and a resilient contact The soldering portion is soldered to one of the switching circuit board and the battery management circuit board, and the elastic contact portion contacts a corresponding guiding pad disposed on the other of the switching circuit board and the battery management circuit board. A battery connection module includes: an insulating frame having a mating side; a plurality of electrode connecting members disposed on the insulating frame; and a plurality of conducting conductive members respectively corresponding to the electrode connecting members disposed on the insulating frame Each of the transfer conductive members is partially embedded in the insulating frame and has an inner connecting portion exposing the insulating frame and connected to the corresponding electrode connecting member, and an outer connecting portion extending from the mating side of the insulating frame; and one turn The circuit board is fixed to the mating side of the insulating frame and connected to the outer connecting portion of the conductive conductive members. The battery connection module of claim 15, wherein the plurality of electrode connectors are a bus bar connector, each bus bar connector has at least two electrode connecting portions, and at least one arched buffer segment is connected to the phase Adjacent electrode connection. The battery connection module of claim 16, wherein two of the electrode connectors are output connectors and the rest are bus connectors, the battery connector module further includes two extension pieces respectively connected to the two output connections And protruding from the mating side. The battery connection module of claim 16, wherein the battery connection module further comprises at least one sensing unit disposed on the insulating frame, the sensing unit including a sensor attached to one of the confluent connectors And two wires to connect the sensor and the transit circuit board. The battery connection module of claim 18, wherein the sensing unit further comprises two clamping terminals connected to the ends of the two wires and soldered to the transit circuit board. The battery connection module of claim 19, wherein the insulating frame has at least one wire slot for receiving the wires of the sensing unit. The battery connection module of claim 15, wherein the insulating frame further has a bottom side, a top side opposite to the bottom side, and a plurality of receiving slots respectively accommodating the electrode connecting members, and The mating side is a part of the outer circumference of the insulating frame, and each receiving groove communicates with the bottom side and the top side. The battery connection module of claim 21, wherein the inner connecting portion of each of the conductive conductive members extends into the corresponding receiving groove and is soldered to the corresponding electrode connecting member. The battery connection module of claim 22, wherein a first stop adjacent to the bottom side and a second stop adjacent to the top side are formed on the opposite wall surfaces defining each of the receiving slots, The distance between the first block and the second block is greater than the thickness of the electrode connector to allow the electrode connector to move in a vertical upper limit position perpendicularly passing through the bottom side and the top side. The battery connection module of claim 15, wherein the electrode connecting members are made of an aluminum-based metal material, and the conductive conductive members are made of a copper-based metal material.