CN215816264U

CN215816264U - Battery module and electronic equipment

Info

Publication number: CN215816264U
Application number: CN202121018097.0U
Authority: CN
Inventors: 王雷; 黄胜高
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2022-02-11
Anticipated expiration: 2031-05-12

Abstract

The utility model provides a battery module and electronic equipment. The battery shell is used for installing the battery pack, the printed circuit board is fixed on the battery shell, and the printed circuit board is electrically connected with the battery pack through the first conducting strip group. And replacing the original thicker and harder conducting wires with the first conducting sheet group, so that the printed circuit board is electrically connected with the battery pack through the first conducting sheet group. The battery module provided by the utility model saves the internal space, is more convenient to install, improves the connection mode of the printed circuit board and the battery pack, improves the convenience of assembling the battery module, can improve the assembling efficiency and reduce the cost, and is convenient to realize automatic production.

Description

Battery module and electronic equipment

Technical Field

The utility model relates to the technical field of energy storage equipment, in particular to a battery module and electronic equipment.

Background

The Battery pack is generally formed by connecting a plurality of single batteries in series and parallel, and a Battery Management System (BMS) is added, so that the Battery pack can be directly applied to other equipment as an independent module.

The battery management system is used for protecting the battery pack (also called as a battery pack), such as overvoltage protection, undervoltage protection, discharge short-circuit protection, discharge overcurrent protection, high-low temperature protection and the like, and is also used for controlling charging and discharging of the battery pack. The existing BMS board is connected with the positive and negative electrodes of the battery cell pack through wires and is connected with the control panel and the charging and discharging port of the equipment where the battery module is located through the wires. When the current for charging and discharging the electric core group is larger, a thicker conducting wire is required to be used. The connection mode needs to occupy larger space, and the thicker lead wire has the disadvantages of higher hardness, difficult fixation and installation and higher price.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a battery module and electronic equipment, aiming at improving the connection mode of a printed circuit board and a battery pack and improving the convenience of assembling the battery module.

A first aspect of the present invention provides a battery module including: a battery case for mounting a battery pack;

a printed circuit board fixed on the battery case;

the first conducting strip group comprises a first conducting strip and a second conducting strip, one of the first conducting strip and the second conducting strip is electrically connected with the anode of the printed circuit board and the anode of the battery pack, and the other one of the first conducting strip and the second conducting strip is electrically connected with the cathode of the printed circuit board and the cathode of the battery pack.

A second aspect of an embodiment of the present invention provides an electronic device, including:

the battery module as described above;

and the main control board is electrically connected with the battery module.

The embodiment of the utility model provides a battery module and electronic equipment, wherein a lead electrically connecting a printed circuit board and a battery pack in the battery module is replaced by a first conductive sheet group, so that the printed circuit board is electrically connected with the battery pack through the first conductive sheet group. It can be understood that, the conducting strip can be compared in the wire and can be made preparation such as buckling, cutting in advance according to battery case's structure for the conducting strip can save battery module's inner space with battery case's profile looks adaptation in the installation, and it is also more convenient to install simultaneously, has improved the connected mode of printed circuit board with the group battery, has promoted the convenience of battery module assembly, can improve assembly efficiency and reduce cost, is convenient for realize automated production.

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 description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a front view of a battery module according to an embodiment of the present invention;

fig. 2 is a top view of a battery module according to an embodiment of the present invention;

fig. 3 is a left side view of a battery module according to an embodiment of the present invention;

fig. 4 is an exploded view of a battery module according to an embodiment of the present invention, in which signal lines are not shown;

fig. 5 is an exploded view of a battery pack, a bracket, a first conductive sheet set and a second conductive sheet set according to an embodiment of the present invention;

fig. 6 is an assembly structure diagram of a printed circuit board, a first connecting assembly, a second connecting assembly, a third connecting assembly and a fourth connecting assembly provided by the embodiment of the utility model;

fig. 7 is an exploded view of a printed circuit board, a first connection assembly, a second connection assembly, a third connection assembly, and a fourth connection assembly provided by embodiments of the present invention;

FIG. 8 is a schematic structural view of a first anchor sheet provided in accordance with an embodiment of the present invention;

FIG. 9 is a schematic structural view of an end cap provided by an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a third conductive sheet set according to an embodiment of the present invention.

Description of reference numerals:

1000. a battery module;

110. a battery case; 111. a support; 1111. a parallel port; 11111. connecting the electrodes; 1112. a connecting seat; 112. an end cap; 1121. a first mounting groove; 11211. a first through groove; 11212. a first positioning post; 1122. a second mounting groove; 11221. a second through groove; 11222. a second positioning column; 120. a battery pack; 121. an output electrode; 121a, the positive electrode of the battery pack; 121b, a negative electrode of the battery;

200. a printed circuit board; 201. a first side; 202. a second face; 210. a substrate; 211. a first fixing hole; 212. a second fixing hole; 213. a third fixing hole; 214. a fourth fixing hole; 220. a first connection assembly; 221. a first fixing sheet; 2211. a through hole; 2212. a pin; 222. a first fastener; 223. a first nut; 224. a first gasket; 230. a second connection assembly; 231. a second fixing sheet; 232. a second fastener; 233. a second nut; 234. a second gasket; 240. a third connection assembly; 241. a third fixing sheet; 242. a third fastener; 243. a third nut; 244. a third gasket; 250. a fourth connection assembly; 251. a fourth fixing sheet; 252. a fourth fastener; 253. a fourth nut; 254. a fourth gasket; 260. a first connecting member; 270. a second connecting member;

300. a conductive sheet assembly; 310. a first conducting sheet group; 311. a first conductive sheet; 312. a second conductive sheet; 320. a second conducting sheet group; 321. a third conductive sheet; 322. a fourth conductive sheet; 330. a third conducting sheet group; 331. a fifth conductive sheet; 3311. a first positioning hole; 332. a sixth conductive sheet; 3321. a second positioning hole;

400. and a signal line.

Detailed Description

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, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

The Battery pack is generally formed by connecting a plurality of single batteries in series and parallel, and is also added with a Battery Management System (BMS), and the like, and is a product which can be directly used by a user or directly used for other equipment.

The battery management system is used for protecting the battery pack (also called as a battery pack), such as overvoltage protection, undervoltage protection, discharge short-circuit protection, discharge overcurrent protection, high-low temperature protection and the like, and is also used for controlling charging and discharging. The existing BMS board is connected with the positive and negative electrodes of the battery cell pack through wires and is connected with the control panel and the charging and discharging port of the equipment where the battery module is located through the wires. When the current for charging and discharging the electric core group is larger, a thicker conducting wire is required to be used. The connection mode needs to occupy larger space, and the thicker lead wire has the disadvantages of higher hardness, difficult fixation and installation and higher price.

The utility model provides a battery module 1000, which comprises a battery shell 110 and a printed circuit board 200, wherein the battery shell 110 is used for installing a battery pack 120, the printed circuit board 200 is fixed on the battery shell 110, and the convenience of assembling the battery module 1000 is improved by improving the connection mode of the printed circuit board 200 and the battery pack 120 installed in the battery shell 110.

The battery module 1000 further includes a conductive sheet assembly 300, where the conductive sheet assembly 300 includes any one or any two or three of the first conductive sheet group 310, the second conductive sheet group 320, and the third conductive sheet group 330. The pcb 200 is electrically connected to the battery pack 120 through the first conductive sheet set 310, is electrically connected to another power supply device (not shown) through the second conductive sheet set 320, and is electrically connected to a main control board (not shown) of the control battery module 1000 through the third conductive sheet set 330. The main control board for controlling the battery module 1000 may be a control board of an electronic device that is powered by the battery module 1000.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 to 6, a first aspect of the present invention provides a battery module 1000, which includes a battery case 110 and a printed circuit board 200, wherein a battery pack 120 is mounted inside the battery case 110, and the printed circuit board 200 is fixed on the battery case 110.

The battery module 1000 further includes a conductive sheet assembly 300, the conductive sheet assembly 300 includes a first conductive sheet set 310, a second conductive sheet set 320 and a third conductive sheet set 330, the printed circuit board 200 is electrically connected to the battery pack 120 through the first conductive sheet set 310, is electrically connected to another power supply device through the second conductive sheet set 320, and is electrically connected to a main control board controlling the battery module 1000 through the third conductive sheet set 330. It is understood that in other embodiments, it is also possible for the conductive strip assembly 300 to include any one or any two of the first conductive strip group 310, the second conductive strip group 320, and the third conductive strip group 330.

By adopting the above technical scheme, the original thicker and harder wires connecting the printed circuit board 200 and the battery pack 120 are replaced by the first conductive sheet group 310, so that the printed circuit board 200 is connected with the battery pack 120, and/or the original thicker and harder wires connecting the printed circuit board 200 and another power supply device are replaced by the second conductive sheet group 320, so that the printed circuit board 200 is connected with another power supply device, and/or the original thicker and harder wires connecting the printed circuit board 200 and the main control board of the control battery module 1000 are replaced by the third conductive sheet group 330, so that the printed circuit board 200 is connected with the main control board of the control battery module 1000. It can be understood that, the conducting strip can be compared in the wire and can be according to battery case 110's structure preparation such as ready bending in advance, cutting for the conducting strip can with battery case 110's profile looks adaptation in the installation, save battery module 1000's inner space, it is also more convenient to install simultaneously, the connected mode of printed circuit board 200 with group battery 120 has been improved, the convenience of battery module 1000 assembly has been promoted, assembly efficiency and reduce cost can be improved, be convenient for realize automated production.

Referring to fig. 4, in an alternative embodiment, the battery housing 110 includes a bracket 111 and an end cap 112, the bracket 111 encloses a receiving cavity for placing the battery pack 120, the printed circuit board 200 is disposed between the bracket 111 and the end cap 112, the printed circuit board 200 includes a first side 201 and a second side 202 opposite to each other, the first side 201 is disposed toward the battery pack 120, and the second side 202 is disposed toward the end cap 112. It can be understood that a plurality of electronic components are arranged on the printed circuit board 200, when the battery module 1000 is connected with the electric equipment as the energy storage device, the plurality of electronic components on the printed circuit board 200 can be directly exposed, and the end cover 112 is used for protecting the printed circuit board 200, so that the plurality of electronic components on the printed circuit board 200 are prevented from being in direct contact with the outside during transportation, use and storage of the battery module 1000.

Referring to fig. 4 and 6-7, the first conductive sheet set 310 includes a first conductive sheet 311 and a second conductive sheet 312, and both the first conductive sheet 311 and the second conductive sheet 312 are disposed between the battery pack 120 and the first surface 201. The printed circuit board 200 includes a substrate 210 and an electronic component (not shown), the substrate 210 is formed with a first surface 201 and a second surface 202 opposite to the first surface 201, the electronic component is disposed on the second surface 202, and the second surface 202 is formed with a circuit layer (not shown) electrically connected to the electronic component. The battery module 1000 further includes a first connection assembly 220 and a second connection assembly 230, the substrate 210 is provided with a first fixing hole 211 and a second fixing hole 212 at an interval, and the first fixing hole 211 and the second fixing hole 212 are both disposed to penetrate from the first surface 201 toward the second surface 202. The first connecting element 220 is connected to the first conductive sheet 311 through the first fixing hole 211, and two ends of the first connecting element 220 are electrically connected to the circuit layer and the first conductive sheet 311, respectively, so that the first conductive sheet 311 is fixedly connected to the printed circuit board 200, and the first conductive sheet 311 is electrically connected to the printed circuit board; the second connecting assembly 230 is connected to the second conductive sheet 312 through the second fixing hole 212, and two ends of the second connecting assembly 230 are electrically connected to the circuit layer and the second conductive sheet 312 respectively, so that the second conductive sheet 312 is fixedly connected to the battery management system, and the second conductive sheet 312 is electrically connected to the battery management system. It is understood that in other embodiments, it is also possible that neither the first conductive sheet 311 nor the second conductive sheet 312 is disposed between the battery pack 120 and the first face 201.

Referring to fig. 4-7, the first connecting assembly 220 includes a first fixing piece 221, a first fastening piece 222 and a first nut 223, the first fastening piece 222 is a bolt or a screw, the first fixing piece 221 is disposed on the second surface 202 and electrically connected to the circuit layer, and the first fastening piece 222 sequentially penetrates and connects the first fixing piece 221, the first fixing hole 211, the first conductive sheet 311 and the first nut 223. In a specific application, the first connecting assembly 220 further includes a first spacer 224, the first spacer 224 is located on the second surface 202, a first nut seat (not shown) is disposed on the bracket 111, a first nut 223 is fixed in the first nut seat, and a first fastener 222 sequentially penetrates and connects the first spacer 224, the first fixing plate 221, the first fixing hole 211, the first conductive sheet 311 and the first nut 223, so that the first conductive sheet 311 is connected to the printed circuit board 200, and the printed circuit board 200 is mounted on the bracket 111. It will be appreciated that the first spacer 224 acts as a spacer to protect the surface of the first fastening plate 221 from being scratched by the first fastening member 222, and also to distribute the pressure and reduce the vibration, preventing the first fastening member 222 from being detached. Of course, the connection between the printed circuit board 200 and the first conductive sheet 311 may also be other fixing manners, such as snap connection, adhesion, soldering, etc., which can ensure the normal operation of the printed circuit board 200, and the utility model is not limited.

Referring to fig. 4-7, the second connecting assembly 230 includes a second fixing plate 231, a second fastening member 232 and a second nut 233, the second fastening member 232 is a bolt or a screw, the second fixing plate 231 is disposed on the second surface 202 and electrically connected to the circuit layer, and the second fastening member 232 sequentially penetrates and connects the second fixing plate 231, the second fixing hole 212, the second conductive sheet 312 and the second nut 233. In a specific application, the second connecting assembly 230 further includes a second gasket 234, the second gasket 234 is located on the second surface 202, the bracket 111 is provided with a second nut seat (not shown), the second nut 233 is fixed in the second nut seat, and the second fastener 232 is sequentially connected to the second gasket 234, the second fixing plate 231, the second fixing hole 212, the second conductive sheet 312 and the second nut 233 in a penetrating manner, so that the second conductive sheet 312 is connected to the printed circuit board 200, and the printed circuit board 200 is mounted on the bracket 111. It will be appreciated that the second washer 234 serves as a spacer for protecting the surface of the second fixing piece 231 from being scratched by the second fastening piece 232, and also serves to disperse the pressure and reduce the vibration, preventing the second fastening piece 232 from being detached. Of course, the connection between the printed circuit board 200 and the second conductive sheet 312 may also be other fixing manners, such as snap connection, adhesion, soldering, etc., which can ensure the normal operation of the printed circuit board 200, and the utility model is not limited.

Referring to fig. 4 and fig. 7-8, the first fixing plate 221 includes a through hole 2211 and a pin 2212, the through hole 2211 is used for the first fastening member 222 to pass through, and the pin 2212 abuts against the second surface 202 and is electrically connected to the circuit layer, so that the first conductive sheet 311 is electrically connected to the printed circuit board 200. In this embodiment, the first fixing plate 221 includes two pins 2212. It is to be understood that the number of the pins 2212 is not limited by the embodiment and the drawings, and may be three, four or five. In the present embodiment, the first fixing piece 221 has a profile larger than that of the first fixing hole 211 so that the first fixing piece 221 can abut against the second surface 202 of the printed circuit board 200; the outline of the first fixing hole 211 is greater than the outline of the connection end of the first conductive sheet 311, so that the first conductive sheet 311 can pass through the first fixing hole 211 to be connected with the first fixing sheet 221. It is understood that in other embodiments, the outline of the first fixing hole 211 is smaller than or equal to the outline of the connecting end of the first conductive sheet 311, and the first fastening member 222 is made of a conductive material, which can also achieve the fixed connection and the electrical connection of the first conductive sheet 311 with the printed circuit board 200.

The structure of the second fixing plate 231 is the same as that of the first fixing plate 221, and the matching manner of the second fixing plate 231 and the second fixing hole 212 is the same as that of the first fixing plate 221 and the first fixing hole 211.

It is understood that the connection of the first conductive sheet 311 to the battery pack 120 is also made by the first fastener 222. When the locking is not performed by the first fastener 222, a gap exists between the first conductive sheet 311 and the battery pack 120 and/or between the first conductive sheet 311 and the printed circuit board 200, so that after the first fastener 222 is removed, the connection between the first conductive sheet 311 and the battery pack 120 and/or between the first conductive sheet 311 and the printed circuit board 200 is disconnected, and the safety during assembly and maintenance is ensured.

It is understood that the connection of the second conductive sheet 312 to the battery pack 120 is also made by the second fastener 232. When the locking is not performed by the second fastener 232, a gap exists between the second conductive sheet 312 and the battery pack 120 and/or between the second conductive sheet 312 and the printed circuit board 200, so that after the second fastener 232 is removed, the connection between the second conductive sheet 312 and the battery pack 120 and/or between the second conductive sheet 312 and the printed circuit board 200 is disconnected, and the safety in the assembling and maintaining process is ensured.

Referring to fig. 2 and 4, in an alternative embodiment, the first conductive sheet set 310 includes a first conductive sheet 311 and a second conductive sheet 312, and both the first conductive sheet 311 and the second conductive sheet 312 are electrically connected to the output electrode 121 of the battery pack 120. Specifically, the output electrode 121 of the battery pack 120 includes a positive electrode 121a of the battery pack and a negative electrode 121b of the battery pack. In this embodiment, the first conductive sheet 311 electrically connects the negative electrode of the printed circuit board 200 and the negative electrode 121b of the battery pack, and the second conductive sheet 312 electrically connects the positive electrode of the printed circuit board 200 and the positive electrode 121a of the battery pack. It is understood that in other embodiments, the first conductive sheet 311 electrically connects the positive electrode of the printed circuit board 200 and the positive electrode 121a of the battery pack, and the second conductive sheet 312 electrically connects the negative electrode of the printed circuit board 200 and the negative electrode 121b of the battery pack.

As an embodiment, the first conductive sheet set 310 includes a first conductive sheet 311 and a second conductive sheet 312. It is understood that in other embodiments, such as when the current in the circuit is large, it is also possible that the first conducting strip group 310 includes at least two first conducting strips 311 connected in parallel between the negative pole of the printed circuit board 200 and the negative pole 121b of the battery pack and at least two second conducting strips 312 connected in parallel between the positive pole of the printed circuit board 200 and the positive pole 121a of the battery pack.

Referring to fig. 3-4, in an alternative embodiment, the second conducting strip group 320 includes a third conducting strip 321 and a fourth conducting strip 322, a parallel operation port 1111 connected to another power device is disposed on the battery case 110, both the third conducting strip 321 and the fourth conducting strip 322 are electrically connected to a connection electrode 11111 of the parallel operation port 1111, two connection electrodes 11111 are provided, one connection electrode 11111 is a positive electrode, the other is a negative electrode, one of the third conducting strip 321 and the fourth conducting strip 322 is electrically connected to the positive electrode of the printed circuit board 200 and the positive electrode of the parallel operation port 1111, and the other is electrically connected to the negative electrode of the printed circuit board 200 and the negative electrode of the parallel operation port 1111. It is understood that the parallel port 1111 may also be used to charge and discharge the battery pack 120.

Specifically, the connection electrode 11111 is disposed on a circuit board (not shown) on which the parallel port 1111 is located, so as to be connected with the power terminal in the parallel port 1111 through a corresponding trace on the circuit board. Therefore, an external power supply device can be connected in parallel to the battery pack 120 through the parallel port 1111 and then charged and discharged.

Referring to fig. 4 and fig. 6 to 7, the third conductive plate 321 and the fourth conductive plate 322 are disposed between the first surface 201 and the battery pack 120; the battery module 1000 further includes a third connecting member 240 and a fourth connecting member 250, the substrate 210 is provided with a third fixing hole 213 and a fourth fixing hole 214 at an interval, and the third fixing hole 213 and the fourth fixing hole 214 are both disposed to penetrate from the first surface 201 toward the second surface 202. The third connecting assembly 240 is connected to the third conductive plate 321 through the third fixing hole 213, and two ends of the third connecting assembly 240 are electrically connected to the circuit layer and the third conductive plate 321, respectively, so that the third conductive plate 321 is fixedly connected to the printed circuit board 200, and the third conductive plate 321 and the printed circuit board 200 are electrically connected; the fourth connecting assembly 250 is connected to the fourth conductive sheet 322 through the fourth fixing hole 214, and the two ends of the fourth connecting assembly 250 are electrically connected to the circuit layer and the fourth conductive sheet 322, so that the fourth conductive sheet 322 is fixedly connected to the battery management system, and the fourth conductive sheet 322 is electrically connected to the battery management system. It is understood that, in other embodiments, neither the third conductive sheet 321 nor the fourth conductive sheet 322 may be disposed between the first face 201 and the battery pack 120.

Referring to fig. 4 to 7, the third connecting assembly 240 includes a third fixing plate 241, a third fastening member 242 and a third nut 243, the third fastening member 242 is a bolt or a screw, the third fixing plate 241 is disposed on the second surface 202, and the third fastening member 242 sequentially penetrates and is connected to the third fixing plate 241, the third fixing hole 213, the third conducting plate 321 and the third nut 243. In a specific application, the third connecting assembly 240 further includes a third gasket 244, the third gasket 244 is located on the second surface 202, the bracket 111 is provided with a third nut seat (not shown), the third nut 243 is fixed in the third nut seat, and the third fastener 242 sequentially penetrates and is connected to the third gasket 244, the third fixing plate 241, the third fixing hole 213, the third conductive sheet 321 and the third nut 243, so that the third conductive sheet 321 is connected to the printed circuit board 200, and the printed circuit board 200 is mounted on the bracket 111. It will be appreciated that the third spacer 244 acts as a spacer to protect the surface of the third fixing plate 241 from being scratched by the third fastening member 242, and also to distribute the pressure and reduce the vibration to prevent the third fastening member 242 from being detached. Of course, the connection between the printed circuit board 200 and the third conductive sheet 321 may also be other fixing manners, such as snap connection, adhesion, soldering, and the like, and the normal operation of the printed circuit board 200 can be ensured, which is not limited in the present invention.

Referring to fig. 4-7, the fourth connecting assembly 250 includes a fourth fixing plate 251, a fourth fastening member 252 and a fourth nut 253, the fourth fixing plate 251 is disposed on the second surface 202, and the fourth conducting plate 322 sequentially penetrates and is connected to the fourth fixing plate 251, the fourth fixing hole 214, the fourth conducting plate 322 and the fourth nut 253. In a specific application, the fourth connecting assembly 250 further includes a fourth gasket 254, the fourth gasket 254 is located on the second surface 202, the bracket 111 is provided with a fourth nut seat (not shown), the fourth nut 253 is fixed in the fourth nut seat, and the fourth fastener 252 is sequentially connected to the fourth gasket 254, the fourth fixing plate 251, the fourth fixing hole 214, the fourth conductive sheet 322 and the fourth nut 253 in a penetrating manner, so that the fourth conductive sheet 322 is connected to the printed circuit board 200, and the printed circuit board 200 is mounted on the bracket 111. It will be appreciated that the fourth spacer 254 acts as a spacer to protect the surface of the fourth fixing plate 251 from being scratched by the fourth fastening member 252, and also to distribute the pressure and reduce the vibration to prevent the fourth fastening member 252 from being detached. Of course, the connection between the printed circuit board 200 and the fourth conductive sheet 322 may also be other fixing manners, such as snap connection, adhesion, soldering, etc., which can ensure the normal operation of the printed circuit board 200, and the utility model is not limited.

The structures of the third fixing plate 241 and the fourth fixing plate 251 are the same as those of the first fixing plate 221, the matching manner of the third fixing plate 241 and the third fixing hole 213 is the same as that of the first fixing plate 221 and the first fixing hole 211, and the matching manner of the fourth fixing plate 251 and the fourth fixing hole 214 is the same as that of the first fixing plate 221 and the first fixing hole 211, which is specifically referred to the description of the first fixing plate 221 and will not be described herein again.

As an embodiment, the second conductive sheet group 320 includes a third conductive sheet 321 and a fourth conductive sheet 322. It is understood that in other embodiments, such as when the current in the circuit is large, it is also possible that the second conductive sheet group 320 includes at least two third conductive sheets 321 connected in parallel and at least two fourth conductive sheets 322 connected in parallel.

As an embodiment, the battery module 1000 further includes a connection socket 1112, where the connection socket 1112 is configured to be electrically connected to a main control board of an electronic device; the third conductive sheet group 330 includes a fifth conductive sheet 331 and a sixth conductive sheet 332; the connection socket 1112 is provided with a positive electrode and a negative electrode electrically connected with a main control board of the electronic device, one of the fifth conductive sheet 331 and the sixth conductive sheet 332 is electrically connected with the positive electrode of the printed circuit board 200 and the positive electrode of the connection socket 1112, and the other is electrically connected with the negative electrode of the printed circuit board 200 and the negative electrode of the connection socket 1112.

Referring to fig. 4, 6 and 9, the battery module 1000 further includes a first connecting member 260 and a second connecting member 270, and both the first connecting member 260 and the second connecting member 270 are disposed on the second surface 202; a first mounting groove 1121 matched with the fifth conducting strip 331 and a second mounting groove 1122 matched with the sixth conducting strip 332 are arranged on one surface, away from the printed circuit board 200, of the end cover 112, a first through groove 11211 is arranged on a region, corresponding to the first connecting piece 260, of the end cover 112, the first through groove 11211 is located at the tail end of the first mounting groove 1121, a second through groove 11221 is arranged on a region, corresponding to the second connecting piece 270, of the end cover 112, and the second through groove 11221 is located at the tail end of the second mounting groove 1122; the fifth conductive strip 331 is installed in the first mounting groove 1121, and a portion of the fifth conductive strip located at the first through groove 11211 is connected to the first connector 260 through a fifth fastener (not shown), and the sixth conductive strip 332 is fixed in the second mounting groove 1122 and a portion of the sixth conductive strip located at the second through groove 11221 is connected to the second connector 270 through a sixth fastener (not shown).

It is understood that the connection between the fifth conductive plate 331 and the connection base 1112 and the connection between the fifth conductive plate 331 and the first connection member 260 are all connected by a fifth fastener. When the locking is not performed by the fifth fastener, a gap exists between the fifth conducting strip 331 and the connecting seat 1112 and/or between the fifth conducting strip 331 and the first connector 260, so that the disconnection between the fifth conducting strip 331 and the connecting seat 1112 and/or between the fifth conducting strip 331 and the first connector 260 after the fifth fastener is removed is ensured, and the safety in the assembling and maintaining process is ensured. The connection between the sixth conductive plate 332 and the connecting seat 1112 and the connection between the sixth conductive plate 332 and the second connector 270 are connected by a sixth fastener. When the sixth fastener is not used for locking, a gap exists between the sixth conducting strip 332 and the connecting seat 1112 and/or between the sixth conducting strip 332 and the second connector 270, so that the sixth conducting strip 332 and the connecting seat 1112 and/or the sixth conducting strip 332 and the second connector 270 are disconnected after the sixth fastener is removed, and safety in the assembling and maintaining process is ensured.

It can be understood that the contour of the first mounting groove 1121 is related to the positions of the connection seat 1112 and the first connector 260, the contour of the second mounting groove 1122 is related to the positions of the connection seat 1112 and the second connector 270, the positions of the first connector 260 and the second connector 270 are related to the arrangement of the electronic components on the printed circuit board 200, and the shapes of the fifth conductive sheet 331 and the sixth conductive sheet 332 are changed according to the distribution change of the electronic components on the printed circuit board 200, so as to ensure that the arrangement of the fifth conductive sheet 331 and the sixth conductive sheet 332 does not affect the normal operation of the printed circuit board 200.

It can be understood that the profile of the first through slot 11211 is greater than the profile of the connection end of the fifth conductive sheet 331 so that the fifth conductive sheet 331 can pass through the first through slot 11211 to be connected with the first connection 260. The profile of the second through slot 11221 is greater than the profile of the connection end of the sixth conductive sheet 332, so that the sixth conductive sheet 332 can pass through the second through slot 11221 to be connected with the second connector 270.

For example, referring to fig. 9 and 10, a first positioning hole 3311 is formed on the fifth conductive sheet 331, and a first positioning post 11212 adapted to the first positioning hole 3311 is formed in the first mounting groove 1121 adapted to the fifth conductive sheet 331. The sixth conductive sheet 332 is provided with a second positioning hole 3321, and a second positioning post 11222 adapted to the second positioning hole 3321 is disposed in the second mounting groove 1122 adapted to the sixth conductive sheet 332. When the fifth conductive sheet 331 is mounted in the first mounting groove 1121, the first positioning post 11212 is inserted into the first positioning hole 3311, and when the sixth conductive sheet 332 is mounted in the second mounting groove 1122, the second positioning post 11222 is inserted into the second positioning hole 3321. It can be understood that the shapes of the fifth conductive sheet 331 and the sixth conductive sheet 332 in the third conductive sheet group 330 have a plurality of bent portions, and the first positioning column 11212 is inserted into the first positioning hole 3311, so as to ensure that the plurality of bent portions and the first mounting groove 1121 are kept in a fitting state after the fifth conductive sheet 331 is mounted; the second positioning post 11222 is inserted into the second positioning hole 3321, so that the plurality of bent portions are kept in a fit state with the second mounting groove 1122 after the sixth conductive sheet 332 is mounted. In this embodiment, there are three first positioning holes 3311 and three first positioning pillars 11212, and two second positioning holes 3321 and two second positioning pillars 11222. In a specific application, the number of the first positioning holes 3311 and the first positioning columns 11212, and the number of the second positioning holes 3321 and the second positioning columns 11222 are not limited by the embodiment and the drawings, and can be set according to practical situations.

As an embodiment, the third conductive sheet set 330 includes a fifth conductive sheet 331 and a sixth conductive sheet 332. It will be appreciated that in other embodiments, such as when the current in the circuit is large, it is also possible that the third conductive sheet set 330 comprises at least two fifth conductive sheets 331 connected in parallel and at least two sixth conductive sheets 332 connected in parallel.

Referring to fig. 3-4, in an alternative embodiment, the battery module 1000 further includes a signal line 400, and the signal line 400 is used for data transmission between the parallel port 1111 and the pcb 200. It can be understood that the current in the data transmission process is small, and the data transmission can be realized by using a thin wire, so that the signal wire 400 can be used in the data transmission between the parallel port 1111 and the printed circuit board 200, the signal wire 400 does not occupy a large space, and meanwhile, the signal wire 400 has good flexibility, so that the signal wire 400 is convenient in the installation process. Of course, as an alternative embodiment, it is also possible that the signal line 400 employs a conductive sheet.

A second aspect of the present invention provides an electronic device, which includes the battery module 1000 and a main control board (not shown) electrically connected to the battery module 1000. The battery module 1000 includes a battery case 110, a printed circuit board 200 and a conductive sheet assembly 300, wherein the printed circuit board 200 is mounted on the battery case 110, and the main control board is electrically connected to the printed circuit board 200 through the conductive sheet assembly 300.

It should be noted that the above-mentioned names for the components of the battery module 1000 are only for identification purposes and should not be construed as limiting the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different features of the utility model. The components and arrangements of the specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, comprising:

a battery case for mounting a battery pack;

a printed circuit board fixed on the battery case;

2. The battery module according to claim 1, wherein the printed circuit board includes a substrate and an electronic component, the substrate including a first face and a second face, the first face being disposed toward the battery pack; the second surface is arranged opposite to the first surface; the first conducting plate group is arranged between the first surface and the battery pack; the electronic component is arranged on the second surface, and a circuit layer electrically connected with the electronic component is formed on the second surface of the substrate; the battery module further comprises a first connecting assembly and a second connecting assembly, and the base plate is provided with a first fixing hole and a second fixing hole which penetrate through the base plate;

the first connecting assembly penetrates through the first fixing hole to be connected with the first conducting strip, and two ends of the first connecting assembly are respectively and electrically connected with the circuit layer and the first conducting strip; the second connecting assembly penetrates through the second fixing hole to be connected with the second conducting strip, and two ends of the second connecting assembly are respectively and electrically connected with the circuit layer and the second conducting strip.

3. The battery module according to claim 2, wherein the first connecting assembly comprises a first fixing piece, a first fastening piece and a first nut, the first fastening piece is a bolt or a screw, the first fixing piece is arranged on the second surface and is electrically connected with the circuit layer, and the first fastening piece is sequentially connected with the first fixing piece, the first fixing hole, the first conductive sheet and the first nut in a penetrating manner; and/or

The second connecting assembly comprises a second fixing sheet, a second fastener and a second nut, the second fastener is a bolt or a screw, the second fixing sheet is arranged on the second face and electrically connected with the circuit layer, and the second fastener sequentially penetrates through the second fixing sheet, the second fixing hole, the second conducting sheet and the second nut.

4. The battery module according to any one of claims 1 to 3, wherein the first conductive sheet group comprises one first conductive sheet and one second conductive sheet; alternatively, the first and second electrodes may be,

the first conducting strip group comprises at least two first conducting strips which are connected in parallel between the anode of the printed circuit board and the anode of the battery pack, and at least two second conducting strips which are connected in parallel between the cathode of the printed circuit board and the cathode of the battery pack.

5. The battery module according to claim 2 or 3, wherein the battery module further comprises a second conductive sheet set and a parallel port for connecting another power supply device, and the parallel port is fixed on the battery shell;

the second conducting strip group comprises a third conducting strip and a fourth conducting strip, one of the third conducting strip and the fourth conducting strip is electrically connected with the anode of the printed circuit board and the anode of the parallel operation port, and the other one of the third conducting strip and the fourth conducting strip is electrically connected with the cathode of the printed circuit board and the cathode of the parallel operation port.

6. The battery module according to claim 5, wherein the third conductive sheet and the fourth conductive sheet are both disposed between the first surface and the battery pack; the battery module further comprises a third connecting assembly and a fourth connecting assembly, a third fixing hole and a fourth fixing hole are formed in the printed circuit board, and the third fixing hole and the fourth fixing hole penetrate through the first surface and the second surface;

the third connecting assembly is connected with the third conducting strip in a penetrating mode through the third fixing hole, and two ends of the third connecting assembly are respectively connected with the second surface and the third conducting strip;

the fourth connecting assembly penetrates through the fourth fixing hole to be connected with the fourth conducting strip, and two ends of the fourth connecting assembly are respectively connected with the second surface and the fourth conducting strip.

7. The battery module according to claim 6, wherein the third connecting assembly comprises a third fixing plate, a third fastening piece and a third nut, the third fastening piece is a bolt or a screw, the third fixing plate is arranged on the second surface, and the third fastening piece is sequentially connected with the third fixing plate, the third fixing hole, the third conductive plate and the third nut in a penetrating manner; and/or

The fourth coupling assembling includes fourth stationary blade, fourth fastener and fourth nut, the fourth stationary blade is located the second face, the fourth conducting strip wears to establish the connection in proper order the fourth stationary blade the fourth fixed orifices the fourth conducting strip with the fourth nut.

8. The battery module according to claim 2 or 3, wherein the battery module further comprises a connecting seat and a third conductive sheet group, wherein the connecting seat is used for being electrically connected with a main control board of an electronic device;

the third conducting strip group comprises a fifth conducting strip and a sixth conducting strip; one of the fifth conducting strip and the sixth conducting strip is electrically connected with the positive pole of the printed circuit board and the positive pole of the connecting seat, and the other one is electrically connected with the negative pole of the printed circuit board and the negative pole of the connecting seat.

9. The battery module according to claim 8, further comprising a first connector and a second connector, both of which are provided on the second face;

the battery shell comprises a support and an end cover, the battery pack is arranged in the support, the printed circuit board is arranged between the end cover and the support, and the second surface faces the end cover; a first mounting groove matched with the fifth conducting strip and a second mounting groove matched with the sixth conducting strip are formed in one surface, away from the printed circuit board, of the end cover, a first through groove is formed in an area, corresponding to the first connecting piece, of the end cover, the first through groove is located at the tail end of the first mounting groove, a second through groove is formed in an area, corresponding to the second connecting piece, of the end cover, and the second through groove is located at the tail end of the second mounting groove;

the fifth conducting strip is installed in the first installation groove, the position, located at the first through groove, of the fifth conducting strip is connected with the first connecting piece through a fifth fastener, and the sixth conducting strip is fixed in the second installation groove, located at the second through groove, of the sixth conducting strip is connected with the second connecting piece through a sixth fastener.

10. An electronic device, comprising:

the battery module according to any one of claims 1 to 9;

and the main control board is electrically connected with the battery module.