Battery module, power battery and new energy vehicle

Abstract

The utility model relates to a battery module, a power battery and a new energy vehicle. The battery module comprises a single battery cell, the tray is positioned on the surface of the single cell; the temperature sensor and the voltage acquisition nickel sheet are distributed on the surface of the tray; wherein the temperature sensor and the voltage acquisition nickel sheet are arranged on the surface of the tray and are integrated into a whole through the tray. The temperature sensor and the voltage acquisition nickel sheet are integrated into a whole through the tray and are installed on the surface of the battery cell, temperature and voltage detection can be directly carried out on the battery cell, and therefore the detection accuracy of the temperature and voltage of the battery cell can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of new energy vehicle technology, and in particular to a battery module, a power battery, and a new energy vehicle. Background Technology

[0002] Temperature and voltage are critical factors affecting battery performance. The capacity and lifespan of lithium-ion batteries vary with temperature; excessively high or low temperatures can damage the battery. In electric vehicles, cell temperature and voltage monitoring is essential to ensure battery performance and safety. Utility Model Content

[0003] In view of this, the present disclosure aims to provide a battery module, a power battery, and a new energy vehicle.

[0004] The technical solution disclosed herein is implemented as follows:

[0005] In one aspect, this disclosure provides a battery module.

[0006] The battery module provided in this disclosure embodiment is characterized by comprising:

[0007] Single battery cell;

[0008] A tray is located on the surface of the individual battery cell;

[0009] Temperature sensors and voltage acquisition nickel plates are both distributed on the surface of the tray; among them,

[0010] The temperature sensor and voltage acquisition nickel plate are located on the surface of the tray and are integrated into a single unit via the tray.

[0011] In some embodiments, including:

[0012] FPC;

[0013] The temperature sensor and voltage acquisition nickel plate are both integrated on the FPC;

[0014] The FPC is located on the surface of the tray and is integrated with the tray as a whole.

[0015] In some embodiments, the temperature sensor includes an NTC negative temperature coefficient thermistor;

[0016] The battery module includes an NTC positioning bracket;

[0017] The NTC positioning bracket is located on the surface of the tray;

[0018] The NTC negative temperature coefficient thermistor is located on the NTC positioning bracket and is fixed to the surface of the tray by the NTC positioning bracket.

[0019] In some embodiments, comprising:

[0020] The bar plate;

[0021] The bar plate is located on the surface of the tray;

[0022] The NTC positioning bracket is fixed on the bar plate; wherein the FPC is fixed on the bar plate through the NTC positioning bracket.

[0023] In some embodiments, the FPC and the single battery cell are fixed together by means of bolt connection.

[0024] In some embodiments, the bar plate is made of aluminum material and the tray is made of PC material.

[0025] In some embodiments, the bar plate comprises a first bar plate and a second bar plate;

[0026] The first bar plate is located on the first side of the FPC;

[0027] The second bar plate is located on the second side of the FPC;

[0028] The first side of the FPC and the second side of the FPC are opposite sides of the FPC; wherein,

[0029] The temperature sensor and the voltage collection nickel plate are located on the first bar plate; the second bar plate is connected with an external interface for installing a relay.

[0030] In some embodiments, the single battery cell is a plurality of; a plurality of single battery cells are arranged side by side;

[0031] The temperature sensor is connected with a plurality of single battery cells for monitoring the temperature of the plurality of single battery cells;

[0032] The voltage collection nickel plate is connected with a plurality of single battery cells for monitoring the electrode voltage of the plurality of single battery cells.

[0033] Secondly, the present disclosure provides a power battery comprising the battery module of the first aspect.

[0034] Thirdly, the present disclosure provides a new energy vehicle comprising the power battery of the first aspect.

[0035] The battery module according to the embodiment of the present disclosure has the characteristics that it comprises: a single battery cell; a tray located on the surface of the single battery cell; a temperature sensor and a voltage collection nickel sheet distributed on the surface of the tray; wherein the temperature sensor and the voltage collection nickel sheet are integrated as a whole on the surface of the tray. In the present application, the temperature sensor and the voltage collection nickel sheet are integrated as a whole by the tray and installed on the surface of the battery cell, which can directly detect the temperature and voltage of the battery cell, thereby improving the detection accuracy of the temperature and voltage of the battery cell.

[0036] Additional aspects and advantages of the present disclosure will be made apparent from the following description, which, taken together with the accompanying drawings, describes or illustrates such aspects and advantages by way of example as described below. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a schematic diagram of a battery module structure according to an exemplary embodiment;

[0038] Figure 2 is a schematic diagram of an FPC integrated structure in a battery module according to an exemplary embodiment.

[0039] REFERENCE NUMERALS

[0040] 10, single battery cell; 11, tray; 12, FPC; 13, temperature sensor; 14, voltage collection nickel sheet; 15, NTC positioning bracket; 16, bolt. DETAILED DESCRIPTION

[0041] The embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present disclosure, and cannot be understood as a limitation of the present disclosure.

[0042] Temperature and voltage are important factors affecting the performance of the battery. The capacity and life of lithium batteries will change with temperature, and too high or too low temperature can cause damage to the battery. In electric vehicles, battery cell temperature and voltage monitoring is crucial to ensure the performance and safety of the battery.

[0043] In view of the above, the present disclosure provides a battery module. Figure 1 is a schematic diagram of a battery module structure according to an exemplary embodiment. As shown in Figure 1 the battery module comprises:

[0044] a single battery cell 10;

[0045] a tray 11 located on the surface of the single battery cell 10;

[0046] The temperature sensor 13 and the voltage collection nickel sheet 14 are distributed on the surface of the tray 11.

[0047] The temperature sensor 13 and the voltage collection nickel sheet 14 are integrated on the surface of the tray 11.

[0048] In the present exemplary embodiment, in order to improve the effectiveness of temperature and voltage collection of the single battery cell 10 and reduce the temperature collection error of the single battery cell 10, the temperature sensor 13 and the voltage collection nickel sheet 14 are distributed on the surface of the tray 11, and the temperature sensor 13 and the voltage collection nickel sheet 14 are integrated on the surface of the tray 11 to be installed on the surface of the single battery cell 10, so that the temperature sensor 13 and the voltage collection nickel sheet 14 can directly measure the single battery cell 10, thereby improving the effectiveness of temperature and voltage collection of the single battery cell 10.

[0049] In some embodiments, comprising:

[0050] The FPC 12;

[0051] The temperature sensor 13 and the voltage collection nickel sheet 14 are integrated on the FPC 12;

[0052] The FPC 12 is located on the surface of the tray 11 and integrated with the tray 11.

[0053] In the present exemplary embodiment, the FPC 12 flexible circuit board can be used to integrate the temperature sensor 13 and the voltage collection nickel sheet 14. The temperature sensor 13 and the voltage collection nickel sheet 14 are integrated with the tray 11 through the FPC 12 flexible circuit board. The temperature sensor 13 and the voltage collection nickel sheet 14 are powered through the FPC 12 flexible circuit board, so that the temperature sensor 13 and the voltage collection nickel sheet 14 can directly measure the single battery cell 10, thereby improving the effectiveness of temperature and voltage collection of the single battery cell 10.

[0054] In some embodiments, Figure 2 is a schematic diagram of an FPC integrated structure in a battery module according to an exemplary embodiment. As shown in Figure 2 The temperature sensor 13 includes an NTC negative temperature coefficient thermistor.

[0055] The battery module includes an NTC positioning bracket 15.

[0056] The NTC positioning bracket 15 is located on the surface of the tray 11.

[0057] The NTC negative temperature coefficient thermistor is located on the NTC positioning bracket 15 and fixed on the surface of the tray 11 through the NTC positioning bracket 15.

[0058] In the present exemplary embodiment, the NTC negative temperature coefficient thermistor is used as the temperature sensor 13 for temperature detection of the battery cell.

[0059] In some embodiments, comprising:

[0060] The bar plate;

[0061] The bar plate is located on the surface of the tray 11;

[0062] The NTC positioning bracket 15 is fixed on the bar plate; wherein the FPC 12 is fixed on the bar plate through the NTC positioning bracket 15.

[0063] In the present exemplary embodiment, the bar plate can be made of aluminum material, which has a specific conductive effect. The FPC 12 is fixed on the bar plate through the NTC positioning bracket 15, so that the temperature sensor 13 and the voltage collection nickel plate 14 on the FPC 12 can directly detect the temperature and voltage of the battery cell through the conductive performance of the bar plate, thereby facilitating the improvement of the effectiveness of temperature and voltage collection of the single battery cell 10.

[0064] In some embodiments, the FPC 12 and the single battery cell 10 are fixed together by means of bolt 16 connection.

[0065] In the present exemplary embodiment, the FPC 12 and the single battery cell 10 are directly fixed together by means of bolt 16 connection, so that the temperature sensor 13 and the voltage collection nickel plate 14 directly measure the single battery cell 10, thereby facilitating the improvement of the effectiveness of temperature and voltage collection of the single battery cell 10.

[0066] In some embodiments, the bar plate is made of aluminum material and the tray 11 is made of PC material.

[0067] In the present exemplary embodiment, the bar plate is made of aluminum material, which has a conductive performance. The tray 11 is made of PC material, which is conducive to improving its hardness.

[0068] In some embodiments, the bar plate comprises a first bar plate and a second bar plate;

[0069] The first bar plate is located on the first side of the FPC 12;

[0070] The second bar plate is located on the second side of the FPC 12;

[0071] The first side of the FPC 12 and the second side of the FPC 12 are opposite sides of the FPC 12; wherein,

[0072] The temperature sensor 13 and the voltage collection nickel sheet 14 are located on the first bar; the second bar is connected with an external interface for mounting a relay.

[0073] In the present exemplary embodiment, the bar in the battery module can be multiple; the multiple bars can be distributed in multiple different positions on the surface of the battery cell. For example, the first bar is located on the first side of the FPC 12; the second bar is located on the second side of the FPC 12. When the bar is used, the temperature sensor 13 and the voltage collection nickel sheet 14 can be located on the first bar; the second bar can be connected with an external interface for mounting a relay, providing a conductive function for the access of the relay.

[0074] In some embodiments, the single battery cell 10 is multiple; multiple single battery cells 10 are arranged side by side;

[0075] The temperature sensor 13 is connected with the multiple single battery cells 10 for monitoring the temperature of the multiple single battery cells 10;

[0076] The voltage collection nickel sheet 14 is connected with the multiple single battery cells 10 for monitoring the electrode voltage of the multiple single battery cells 10.

[0077] In the present exemplary embodiment, one temperature sensor 13 can monitor the temperature of 2 or 3 single battery cells 10. One voltage collection nickel sheet 14 can monitor the electrode voltage of all single battery cells 10, wherein the electrode voltage of each single battery cell 10 can be different.

[0078] The present disclosure provides a power battery, including the battery module described in each of the above embodiments.

[0079] The present disclosure provides a new energy vehicle, including the power battery described in each of the above embodiments.

[0080] It should be noted that the logical and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a list of executable instructions for implementing logic functions, and can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor- containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions, or a combination of the above. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. The computer-readable medium can be a product of the manufacturing and / or processing, and / or an article of manufacture. More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electronic connection having one or more wires (electronic devices), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for example via an optical scanner, then compiled, interpreted, or otherwise processed, and stored in a computer memory in a suitable format.

[0081] It should be understood that portions of the present disclosure can be implemented in hardware, software, firmware, or combinations thereof. In the above-described embodiments, a number of steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any of the following technologies, or a combination thereof, known in the art can be used: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.

[0082] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples.

[0083] In the description of the present disclosure, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does 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 cannot be understood as a limitation on the present disclosure.

[0084] In addition, the terms "first", "second", and the like used in the embodiments of the present disclosure are only for descriptive purposes, and cannot be understood as indicating or implying relative importance, or implicitly indicating the number of technical features referred to in the embodiments. Therefore, the features defined with the terms "first", "second" and the like in the embodiments of the present disclosure can explicitly or implicitly indicate that at least one such feature is included in the embodiments. In the description of the present disclosure, the meaning of the word "multiple" is at least two or two or more, such as two, three, four, etc., unless otherwise specifically limited in the embodiments.

[0085] In the present disclosure, unless otherwise specifically defined or limited in the embodiments, the terms "mounting", "connecting", "connecting" and "fixing" and the like appearing in the embodiments should be understood broadly, for example, the connection can be a fixed connection, or a detachable connection, or integrated, which can be understood, or can be a mechanical connection, an electrical connection, etc. Of course, it can also be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements, or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific implementation situation.

[0086] In the present disclosure, unless otherwise specifically defined or limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0087] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary, and it is not construed that the present disclosure is limited to the above-described embodiments, and a person of ordinary skill in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A battery module, characterized by, The battery module comprises: a single battery cell; a tray located on the surface of the single battery cell; a temperature sensor and a voltage collection nickel sheet are distributed on the surface of the tray; wherein the temperature sensor and the voltage collection nickel sheet are integrated as a whole on the surface of the tray through the tray.

2. The battery module of claim 1, wherein, The battery module comprises: an FPC; the temperature sensor and the voltage collection nickel sheet are integrated on the FPC; the FPC is located on the surface of the tray and integrated as a whole with the tray.

3. The battery module of claim 2, wherein, The temperature sensor comprises an NTC negative temperature coefficient thermistor; the battery module comprises an NTC positioning bracket; the NTC positioning bracket is located on the surface of the tray; the NTC negative temperature coefficient thermistor is located on the NTC positioning bracket and fixed on the surface of the tray through the NTC positioning bracket.

4. The battery module of claim 3, wherein, The battery module comprises: a bar piece; the bar piece is located on the surface of the tray; the NTC positioning bracket is fixed on the bar piece; wherein the FPC is fixed on the bar piece through the NTC positioning bracket.

5. The battery module of claim 2, wherein, The FPC and the single battery cell are fixed together through bolt connection.

6. The battery module of claim 4, wherein, The bar piece is made of aluminum material and the tray is made of PC material.

7. The battery module of claim 4, wherein, The bar piece comprises a first bar piece and a second bar piece; the first bar piece is located on the first side of the FPC; the second bar piece is located on the second side of the FPC; the first side of the FPC and the second side of the FPC are opposite sides of the FPC; wherein the temperature sensor and the voltage collection nickel sheet are located on the first bar piece; the second bar piece is connected with an external interface for mounting a relay.

8. The battery module of claim 2, wherein, The single battery cell is a plurality of single battery cells; the plurality of single battery cells are arranged side by side; the temperature sensor is connected with the plurality of single battery cells for monitoring the temperature of the plurality of single battery cells; the voltage collection nickel sheet is connected with the plurality of single battery cells for monitoring the electrode voltage of the plurality of single battery cells.

9. A power cell, characterized by The battery module comprises any one of claims 1-8.

10. A new energy vehicle, characterized in that, The power battery comprises claim 9.

Images