CN218586288U - Battery module - Google Patents
Battery module Download PDFInfo
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- CN218586288U CN218586288U CN202223024451.8U CN202223024451U CN218586288U CN 218586288 U CN218586288 U CN 218586288U CN 202223024451 U CN202223024451 U CN 202223024451U CN 218586288 U CN218586288 U CN 218586288U
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- circuit board
- integrated circuit
- battery
- detection device
- shell
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to the field of energy storage devices, and discloses a battery module, which comprises an electric core and an acquisition module; the acquisition module comprises an integrated circuit board, and a shell voltage detection device for detecting the shell voltage of the cell core and a wireless transmission module for wirelessly connecting the battery management system are arranged on the integrated circuit board; the shell voltage detection device comprises a first acquisition sheet and a second acquisition sheet, the first acquisition sheet is used for connecting a battery cell pole, the second acquisition sheet is used for connecting a battery cell shell, the first acquisition sheet and the second acquisition sheet are both arranged on the integrated circuit board, and the first acquisition sheet, the second acquisition sheet, the shell voltage detection device and the integrated circuit board form a shell voltage detection circuit; the wireless transmission module is electrically connected with the shell voltage detection device. The utility model discloses a battery module need not to set up acquisition line and signal transmission line, just also need not to set up low pressure plug-in components output interface and mounting, vacates bigger space for the installation of electric core, has effectively reduced the overall volume of battery module.
Description
Technical Field
The utility model relates to an energy memory field especially relates to a battery module.
Background
The shell voltage is the voltage between the battery anode (or the battery cathode) and the battery shell, the shell voltage of the battery is consistent with the change amplitude of the battery SOC (namely the state of charge, which is used for reflecting the residual capacity of the battery), along with the progress of the technology, the shell voltage data can well reflect the battery state, the battery state can be judged according to the specific data of the shell voltage, and then the battery lithium analysis and the shell corrosion in the charging process of the battery can be avoided by controlling the charging current.
At present, a shell voltage acquisition device comprises a mounting plate, wherein an acquisition line for acquiring shell voltage and a signal transmission line for connecting a battery management system are arranged on the mounting plate, and the mounting plate is used for limiting the positions of the acquisition line and the signal transmission line; when the battery module includes more electric core, collection line and signal transmission line quantity converge into the pencil, and collection line and signal transmission line still need be connected to low pressure plug-in components output interface usually in order to connect battery management system, and the battery module need set up the mounting in order to fix the pencil. The arrangement of the collecting wire, the signal transmission line, the low-voltage plug-in output interface and the fixing piece enables the number of parts of the battery module to be increased, the structure of the battery module is not facilitated to be simplified, and the size of the battery module is increased.
Accordingly, it is desirable to design a battery module to reduce the overall volume of the battery module.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery module to reduce the overall volume of battery module.
To achieve the purpose, the utility model adopts the following technical proposal:
a battery module comprises a battery core and an acquisition module;
the acquisition module comprises an integrated circuit board, and a shell voltage detection device for detecting shell voltage of the cell core and a wireless transmission module for wirelessly connecting the cell management system are arranged on the integrated circuit board; the shell voltage detection device comprises a first acquisition sheet for connecting a battery cell pole and a second acquisition sheet for connecting a battery cell shell, the first acquisition sheet and the second acquisition sheet are both arranged on the integrated circuit board, and the first acquisition sheet, the second acquisition sheet, the shell voltage detection device and the integrated circuit board form a shell voltage detection circuit;
the wireless transmission module is electrically connected with the shell voltage detection device.
Optionally, a temperature detection device for detecting the temperature of the battery cell pole is further arranged on the integrated circuit board;
the temperature detection device comprises a temperature sampling circuit arranged on the integrated circuit board and a temperature acquisition sheet connected with the temperature sampling circuit, and the temperature acquisition sheet is abutted against a battery cell pole;
the wireless transmission module is electrically connected with the temperature detection device.
Optionally, a voltage detection device for detecting the voltage of the pole is further arranged on the integrated circuit board;
the voltage detection device comprises a voltage sampling circuit arranged on the integrated circuit board and a voltage acquisition sheet connected with the voltage sampling circuit;
the wireless transmission module is electrically connected with the voltage detection device.
Optionally, the second collecting sheet includes a first plate portion connected to the integrated circuit board, a second plate portion far away from the first plate portion, and an elastic bending connecting portion connecting the first plate portion and the second plate portion;
the first plate portion is fixedly connected with the integrated circuit board, the second plate portion is attached to the battery cell shell, and the second plate portion is fixedly connected with the battery cell shell.
Optionally, the battery cell is provided with a plurality of battery cells, and the battery cells form a battery cell group;
the top one side of electric core group is provided with the division board, integrated circuit board install in the division board is kept away from one side of electric core group, just the division board with integrated circuit board fixed connection.
Optionally, a positioning groove is formed in the isolation plate, and a through hole is formed in the bottom of the positioning groove corresponding to the cell pole;
the first acquisition piece comprises a bar piece fixed on the positioning groove to be connected with the battery cell pole and a connecting piece connected with the bar piece, and one end, far away from the bar piece, of the connecting piece is connected with the integrated circuit board.
Optionally, the groove edge of the positioning groove is provided with a fastening part for fastening the splints.
Optionally, the second collecting sheet is connected to the integrated circuit board by soldering.
Optionally, the battery cell is provided with an explosion-proof valve, the isolation plate corresponds the opening of the explosion-proof valve is provided with an air hole, and the central line of the air hole coincides with the central line of the explosion-proof valve.
Optionally, the integrated circuit board is provided with through holes corresponding to the air holes.
Compared with the prior art, the utility model discloses following beneficial effect has:
in this embodiment, the first collection piece, the second collection piece, the shell voltage detection device and the integrated circuit board form a shell voltage detection circuit capable of detecting shell voltage, the shell voltage detection circuit detects shell voltage of the battery core and sends the detected shell voltage value to the wireless transmission module, and then the wireless transmission module sends the shell voltage value to the battery management system in a wireless manner. In this embodiment, need not to set up acquisition line and signal transmission line, also need not to set up low pressure plug-in components output interface and mounting yet, vacated bigger space for the installation of electric core, be favorable to reducing the total volume of battery module.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.
Fig. 1 is a schematic top view of an acquisition module according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an acquisition module according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of position A in FIG. 2;
fig. 4 is a schematic perspective view of a battery module according to an embodiment of the present invention;
fig. 5 is an enlarged schematic view of the position B in fig. 4.
Illustration of the drawings: 10. an acquisition module; 1. a circuit board; 11. a through hole; 2. a shell voltage detection device; 21. a first acquisition sheet; 211. a tablet; 212. a connecting member; 22. a second acquisition sheet; 221. a first plate portion; 222. a second plate portion; 223. an elastically bending connecting portion; 3. a wireless transmission module; 4. a temperature detection device; 5. a voltage detection device; 6. the electric core group; 7. a separator plate; 71. a positioning groove; 72. a through hole; 73. a fastening portion; 74. and (4) air holes.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment of the utility model provides a battery mould can effectively simplify the structure of battery module to can effectively reduce the overall volume of battery module.
Referring to fig. 1 to 5, the battery module includes a battery cell and a collection module 10; the acquisition module 10 is used for acquiring parameters such as voltage, temperature, shell voltage and the like of the battery cell.
The acquisition module 10 comprises an integrated circuit board 1, and a shell voltage detection device 2 for detecting shell voltage of the cell pack 6 and a wireless transmission module 3 for wirelessly connecting a battery management system are arranged on the integrated circuit board 1; the shell voltage detection device 2 comprises a first acquisition sheet 21 used for connecting a battery cell pole and a second acquisition sheet 22 used for connecting a battery cell shell, the first acquisition sheet 21 and the second acquisition sheet 22 are both arranged on the integrated circuit board 1, and the first acquisition sheet 21, the second acquisition sheet 22, the shell voltage detection device 2 and the integrated circuit board 1 form a shell voltage detection circuit; the wireless transmission module 3 is electrically connected to the case voltage detection device 2.
Specifically, in the acquisition module 10 of the present embodiment, the first acquisition sheet 21, the second acquisition sheet 22, the shell voltage detection device 2, and the integrated circuit board 1 form a shell voltage detection circuit, so that an acquisition line is not required to be arranged, which is equivalent to saving the volume of the acquisition line; the wireless transmission module for wirelessly connecting the battery management system is arranged to transmit the data detected by the shell voltage detection device 2, so that a signal transmission line is not required to be arranged, and the volume of the signal transmission line is saved. In addition, in the battery module installation, because do not have collection line and signal transmission line, also saved low pressure grafting output interface and the mounting that is used for fixed signal transmission line pencil, be favorable to further reducing the volume of battery module.
It needs to be supplemented that the first collecting sheet 21 is welded and fixed on the integrated circuit board 1, and the other end in the shape of a plate can be well connected with the cell pole, so that the connection stability of the integrated circuit board 1 and the cell pole is improved; in addition, the second collecting piece 22 is fixed on the integrated circuit board 1 by laser welding, and one end of the second collecting piece 22 away from the integrated circuit board 1 is fixed on the cell shell by welding, so that the accurate detection of the shell voltage is ensured. It should be added that after the wireless transmission module 3 transmits the shell voltage data to the battery management system, the shell voltage data of the battery management system adjusts the charging current, so as to avoid the situation that the lithium is separated from the battery cell due to the overlarge charging current.
Optionally, the integrated circuit board 1 is further provided with a temperature detection device 4 for detecting the temperature of the battery cell pole; the temperature detection device 4 comprises a temperature sampling circuit arranged on the integrated circuit board 1 and a temperature acquisition sheet (not shown) connected with the temperature sampling circuit, and the temperature acquisition sheet is abutted against the battery cell pole; the wireless transmission module 3 is electrically connected with the temperature detection device 4, and the wireless transmission module 3 can transmit the cell temperature data to the battery management system to avoid the cell temperature from being too high.
Optionally, the integrated circuit board 1 is further provided with a voltage detection device 5 for detecting the pole voltage; the voltage detection device includes a voltage sampling circuit provided on the integrated circuit board 1 and a voltage sampling piece (not shown) connected to the voltage sampling circuit. The wireless transmission module 3 is electrically connected with the voltage detection device 5. It should be noted that the voltage here refers to the voltage between the positive pole and the negative pole, and since voltage collection is a well-established prior art, it is not described here again. The battery cell state can be effectively detected by detecting the voltage between the positive pole column and the negative pole column, and the abnormality can be timely found after the abnormality occurs in the battery cell charging and discharging process.
Alternatively, the second collecting sheet 22 includes a first plate portion 221 connecting the integrated circuit board 1, a second plate portion 222 distant from the first plate portion 221, and an elastic bending connecting portion 223 connecting the first plate portion 221 and the second plate portion 222; first board 221 and integrated circuit board 1 are fixedly connected, and second board 222 is laminated to the cell casing, and second board 222 and the cell casing are fixedly connected. It should be noted that, the elastic bending connection portion 223 is disposed between the first plate portion 221 and the second plate portion 222, so that the second collecting piece 22 can be effectively prevented from being deformed and broken. At this time, even if a positional error occurs between the cell casing and the integrated circuit board 1 due to vibration, the elastically bending connection portions 223 can be elastically deformed to ensure the connection of the cell casing and the integrated circuit board 1.
Optionally, the battery cells are provided with a plurality of battery cells, and the battery cells form a battery cell group 6; the top one side of cell group 6 is provided with division board 7, and integrated circuits board 1 is installed in the one side that cell group 6 was kept away from to division board 7, and division board 7 and integrated circuits board 1 fixed connection.
It should be noted that the isolating plate 7 separates the electric core assembly 6 from the integrated circuit board 1, so as to avoid short circuit. Moreover, the partition board 7 constitutes a supporting function for the integrated circuit board 1. The integrated circuit board 1 may be fixed to the partition plate 7 by soldering, fixed to the partition plate 7 by a fixing member, or fixed to the partition plate 7 by sticking.
Optionally, a positioning groove 71 is formed in the isolation plate 7, and a through hole 72 is formed at the bottom of the positioning groove 71, corresponding to the cell post; the first collecting sheet 21 comprises a bar sheet 211 fixed in the positioning groove 71 to connect the cell pole column and a connecting piece 212 connected with the bar sheet 211, and one end of the connecting piece 212 far away from the bar sheet 211 is connected with the integrated circuit board 1.
Specifically, as shown in fig. 5, the positioning groove 71 defines the position of the bar 211, so that the positions of the bar 211 and the cell post meaningfully correspond. The fins 211 are made of a conductive material.
Alternatively, the groove edge of the positioning groove 71 is provided with a fastening portion 73 for fastening the flap 211, which enables the flap 211 to be mounted more conveniently and quickly.
Optionally, the second collecting sheet 22 is connected to the integrated circuit board 1 by soldering, so as to improve the mounting stability of the second collecting sheet 22.
Optionally, the battery cell is provided with an explosion-proof valve, the isolation plate 7 is provided with a vent 74 corresponding to the explosion-proof valve, and the central line of the vent 74 coincides with the central line of the explosion-proof valve. The integrated circuit board 1 is provided with a through hole 11 corresponding to the air hole 74. Therefore, when the electric core is in accident, the diaphragm of the explosion-proof valve is broken, high-pressure gas in the electric core is discharged, and the electric core can be effectively prevented from exploding.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A battery module, characterized by comprising a cell and a collection module (10);
the acquisition module (10) comprises an integrated circuit board (1), and a shell voltage detection device (2) for detecting shell voltage of the cell pack (6) and a wireless transmission module (3) for wirelessly connecting a battery management system are arranged on the integrated circuit board (1); the shell voltage detection device (2) comprises a first acquisition sheet (21) used for connecting a battery cell pole and a second acquisition sheet (22) used for connecting a battery cell shell, the first acquisition sheet (21) and the second acquisition sheet (22) are both installed on the integrated circuit board (1), and the first acquisition sheet (21), the second acquisition sheet (22), the shell voltage detection device (2) and the integrated circuit board (1) form a shell voltage detection circuit;
the wireless transmission module (3) is electrically connected with the shell voltage detection device (2).
2. The battery module according to claim 1, wherein the integrated circuit board (1) is further provided with a temperature detection device (4) for detecting the temperature of the cell pole;
the temperature detection device (4) comprises a temperature sampling circuit arranged on the integrated circuit board (1) and a temperature acquisition sheet connected with the temperature sampling circuit, and the temperature acquisition sheet is abutted against the battery cell pole;
the wireless transmission module (3) is electrically connected with the temperature detection device (4).
3. The battery module according to claim 1, characterized in that the integrated circuit board (1) is further provided with a voltage detection device (5) for detecting the pole voltage;
the voltage detection device (5) comprises a voltage sampling circuit arranged on the integrated circuit board (1) and a voltage acquisition sheet connected with the voltage sampling circuit;
the wireless transmission module (3) is electrically connected with the voltage detection device (5).
4. The battery module according to claim 1, wherein the second capture piece (22) comprises a first plate portion (221) connecting the integrated circuit board (1), a second plate portion (222) distant from the first plate portion (221), and an elastically bent connecting portion (223) connecting the first plate portion (221) and the second plate portion (222);
the first plate portion (221) is fixedly connected with the integrated circuit board (1), the second plate portion (222) is attached to the battery cell shell, and the second plate portion (222) is fixedly connected with the battery cell shell.
5. The battery module according to claim 1, wherein the cells are provided in a plurality, and a plurality of the cells constitute a cell group (6);
the battery cell is characterized in that an isolation plate (7) is arranged on one side of the top of the battery cell group (6), the integrated circuit board (1) is installed on one side, away from the battery cell group (6), of the isolation plate (7), and the isolation plate (7) is fixedly connected with the integrated circuit board (1).
6. The battery module according to claim 5, wherein a positioning groove (71) is formed in the partition plate (7), and a through hole (72) is formed in the bottom of the positioning groove (71) corresponding to the cell pole;
the first collecting sheet (21) comprises a bar sheet (211) fixed in the positioning groove (71) to be connected with the battery cell pole and a connecting piece (212) connected with the bar sheet (211), and one end, far away from the bar sheet (211), of the connecting piece (212) is connected with the integrated circuit board (1).
7. The battery module according to claim 6, wherein a groove edge of the positioning groove (71) is provided with a fastening part (73) for fastening the tab (211).
8. The battery module according to claim 5, wherein the second collecting piece (22) is welded to the integrated circuit board (1).
9. The battery module according to claim 5, characterized in that the battery core is provided with an explosion-proof valve, the isolation plate (7) is provided with a vent hole (74) corresponding to the opening of the explosion-proof valve, and the central line of the vent hole (74) coincides with the central line of the explosion-proof valve.
10. The battery module according to claim 9, wherein the integrated circuit board (1) is provided with through holes (11) corresponding to the ventilation holes (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024451.8U CN218586288U (en) | 2022-11-14 | 2022-11-14 | Battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024451.8U CN218586288U (en) | 2022-11-14 | 2022-11-14 | Battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218586288U true CN218586288U (en) | 2023-03-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223024451.8U Active CN218586288U (en) | 2022-11-14 | 2022-11-14 | Battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218586288U (en) |
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2022
- 2022-11-14 CN CN202223024451.8U patent/CN218586288U/en active Active
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