Battery module

Abstract

The utility model discloses a battery module, and belongs to the technical field of batteries, the battery module comprises a battery body, a voltameter, a display screen and a wireless communication device, the voltameter, the display screen and the wireless communication device are installed on the battery body, the voltameter and the display screen are electrically connected with the battery body, and the wireless communication device is electrically connected with the battery body. The voltameter is used for detecting the residual electric quantity of the battery body, the voltameter is in communication connection with the display screen, the display screen is used for displaying the residual electric quantity of the battery body, and the wireless communication device stores parameter information of the battery body. According to the battery module, the problems that the consistency of patterns formed on the surface of the battery is poor and the patterns are easy to abrade along with the increase of the use time because the current battery generally adopts a silk-screen mode, so that a user cannot accurately obtain corresponding information can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a battery module. BACKGROUND

[0002] In the production process of products such as batteries, it is usually necessary to form corresponding patterns on the surface of the battery by means of silk printing, etc. The patterns usually include at least one of the trademark, capacity and manufacturer of the product. However, the patterns formed by silk printing have color difference and other problems, resulting in poor consistency of the product. On the other hand, as the use time of the battery increases, the pattern formed by silk printing is easy to wear, resulting in that the information displayed in the pattern cannot be clearly identified, causing the user to be unable to accurately obtain the corresponding information of the product. CONTENT OF THE UTILITY MODEL

[0003] The present application discloses a battery module to solve the problem that the patterns formed on the surface of the battery by silk printing have poor consistency and are easy to wear as the use time increases, resulting in that the user cannot accurately obtain the corresponding information.

[0004] The present application adopts the following technical solutions:

[0005] The present application discloses a battery module, which comprises a battery body, an electric quantity meter, a display screen and a wireless communication device, all of which are installed on the battery body. The electric quantity meter and the display screen are electrically connected with the battery body. The electric quantity meter is used to detect the remaining electric quantity of the battery body and is in communication connection with the display screen. The display screen is used to display the remaining electric quantity of the battery body. The wireless communication device stores the parameter information of the battery body.

[0006] The technical solution adopted by the present application can achieve the following beneficial effects:

[0007] The battery module disclosed by the embodiment of the present application comprises a battery body, and a power meter, a display screen and a wireless communication device installed on the battery body, wherein the wireless communication device stores parameter information of the battery body, so that a user or the like can use an electronic device corresponding to the wireless communication device to obtain the parameter information of the battery body stored in the wireless communication device, thereby preventing the problem of inconsistency caused by color difference due to the formation of a pattern on the surface of the battery by means of silk printing, and the service life of the wireless communication device is generally relatively long, and the parameter information stored in the wireless communication device is almost not lost due to the surface wear of the battery, thereby ensuring that the user or the like can obtain the parameter information of the battery body through the wireless communication device even as the use time of the battery increases. At the same time, the power meter and the display screen in the battery module are electrically connected with the battery body, and the power meter and the display screen are in communication connection, so that the display screen can at least display the state information of the remaining power of the battery body detected by the power meter, thereby enabling the user to directly obtain the remaining power of the battery through the display screen even if the battery is not installed in the corresponding device, which can greatly improve the use convenience of the battery module. BRIEF DESCRIPTION OF DRAWINGS

[0008] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate the illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0009] Figure 1 A structural schematic diagram of the battery module disclosed by the embodiment of the present application;

[0010] Figure 2 An exploded schematic diagram of the battery module disclosed by the embodiment of the present application.

[0011] Explanation of reference signs:

[0012] 100 - battery body, 110 - sink space,

[0013] 200 - display screen,

[0014] 300 - wireless communication device,

[0015] 410 - positive electrode lug, 420 - negative electrode lug,

[0016] 500 - circuit board,

[0017] 610 - double-sided adhesive layer, 620 - insulating layer, 630 - buffer layer. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] The technical solutions disclosed in the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown in the figure, this application discloses a battery module, which includes a battery body 100, a fuel gauge, a display screen 200, and a wireless communication device 300, wherein the fuel gauge, the display screen 200, and the wireless communication device 300 are all mounted on the battery body 100.

[0021] In this embodiment, the wireless communication device 300 stores parameter information of the battery body 100. Therefore, after the battery processing and assembly are completed, the parameter information of the battery body 100 stored in the wireless communication device 300 can be obtained using the electronic device corresponding to the wireless communication device 300. This can prevent the problem of inconsistency due to color difference when forming patterns on the surface of the battery by screen printing. Furthermore, the service life of the wireless communication device 300 is usually relatively long, and the stored parameter information will hardly be lost due to wear and tear on the surface of the battery. Thus, even as the battery usage time increases, it can be guaranteed that users can obtain the parameter information of the battery body 100 through the wireless communication device 300.

[0022] Specifically, the parameter information stored in the wireless communication device 300 may include the total capacity, size, production date, and manufacturer of the battery body 100, etc., which are not limited in this article. It should be noted that the parameter information stored in the wireless communication device 300 is fixed, that is, the parameter information does not change after the battery module is completed and is not affected by actual parameters such as battery usage time and usage habits.

[0023] In one specific embodiment of this application, the wireless communication device 300 may include a Bluetooth chip or a wireless local area network chip. In this case, the user can use an electronic device such as a mobile phone to establish a communication connection with the battery through Bluetooth or wireless local area network connection to obtain the parameter information stored in the wireless communication device 300.

[0024] As mentioned above, considering that the parameter information of the battery body 100 stored in the wireless communication device 300 is fixed, in order to reduce the power consumption of the wireless communication device 300, the wireless communication device 300 can include an NFC (Near Field Communication) chip. In this case, the wireless communication device 300 does not need to be electrically connected to the battery body 100, nor does it need to be configured with a separate power supply or other devices. It can obtain the parameter information stored in the wireless communication device 300 through the corresponding transmission protocol simply by bringing a mobile phone or other device with near field communication function close to the wireless communication device 300.

[0025] As described above, the battery module also includes a fuel gauge and a display screen 200. The fuel gauge is used to detect the remaining power of the battery body 100. Therefore, the fuel gauge is electrically connected to the battery body 100, enabling it to acquire the remaining power during the charging and discharging process of the battery body 100. Furthermore, by electrically connecting the display screen 200 to the battery body 100, the display screen 200 can operate normally with the power supplied by the battery body 100. Simultaneously, by establishing a communication connection between the fuel gauge and the display screen 200, the remaining power of the battery body 100 detected by the fuel gauge can be displayed to the user on the display screen 200. That is, in this embodiment, the display screen 200 is used at least to display the remaining power of the battery body 100. In this case, the user can directly view the remaining power of the battery module through the display screen 200 without installing the battery module into a corresponding device, significantly improving the ease of use of the battery module.

[0026] Specifically, the fuel gauge and the display screen 200 can be directly connected via wires, which significantly reduces the difficulty of connection and improves the reliability and stability of their communication connection. The display screen 200 may include an e-paper screen, i.e., an E-ink electronic display device. This type of display device has relatively low power consumption, thereby reducing the adverse impact on the battery module's battery life caused by the display screen 200. Furthermore, this type of display has a relatively long lifespan. In another embodiment of this application, the display screen 200 may also include an LED (light-emitting diode) display screen. This type of display screen 200 has relatively good display effects and typically a wide brightness range. In addition, this type of display screen 200 has relatively high compatibility with images and other content and a superior UI design, thereby enhancing the overall product competitiveness of the battery module.

[0027] This application discloses a battery module, which includes a battery body 100, a fuel gauge, a display screen 200, and a wireless communication device 300 mounted on the battery body 100. The wireless communication device 300 stores parameter information of the battery body 100, allowing users to obtain the parameter information of the battery body 100 stored in the wireless communication device 300 using an electronic device corresponding to the wireless communication device 300. This prevents inconsistencies caused by color differences when forming patterns on the battery surface using screen printing. Furthermore, the wireless communication device 300 typically has a relatively long lifespan and its stored parameter information is almost never lost due to wear and tear on the battery surface. Therefore, even as the battery usage time increases, users can still obtain the parameter information of the battery body 100 through the wireless communication device 300. Meanwhile, the fuel gauge and display screen 200 in the battery module are both electrically connected to the battery body 100, and the fuel gauge and display screen 200 are communicatively connected. This allows the display screen 200 to at least show the remaining power of the battery body 100 detected by the fuel gauge. Thus, even if the battery is not installed in the corresponding device, the user can directly obtain the remaining power of the battery through the display screen 200, which can greatly improve the ease of use of the battery module.

[0028] Generally, battery modules are cubic or cylindrical structures. The wireless communication device 300 is typically relatively small, allowing it to be directly integrated onto the battery module's circuit board 500. However, the size of the display screen 200 is directly related to the amount of content it can display. Therefore, compared to the wireless communication device 300, the display screen 200 is relatively large and generally cannot be directly integrated onto the battery module's circuit board 500. In this case, the display screen 200 can be mounted on the top or side surfaces of the battery module, or other non-supporting surfaces. This allows users to easily access information such as remaining battery power while ensuring that the overall weight of the battery module does not affect the display screen 200, thus extending its lifespan.

[0029] In another embodiment of this application, the battery module has an overall cubic structure. Based on this, a recessed space 110 can be provided on the front side of the battery body 100 in the thickness direction. In this case, the display screen 200 can be embedded in the recessed space 110, thereby using the battery body 100 to provide protection for the display screen 200. The recessed space 110 can be directly formed in the central area of ​​the front side of the battery body 100, so that the battery body 100 has a receiving groove. In this case, the display screen 200 can be installed in the receiving groove in a filling manner. The aforementioned receiving groove is the recessed space 110.

[0030] Furthermore, in the thickness direction of the battery body 100, the back of the display screen 200 can be fitted to the bottom surface of the recessed space 110, and the thickness of the display screen 200 can be less than or equal to the depth of the recessed space 110. This ensures that the display surface of the display screen 200, i.e., the front surface of the display screen 200, is lower than or flush with the front surface of the battery body 100. Specifically, during the formation of the recessed space 110, the design needs to be tailored to the corresponding dimensions of the display screen 200, so that the side surface of the display screen 200 facing away from the bottom of the recess is lower than or flush with the side surface where the opening of the recess is located. In other words, when the display screen 200 is embedded in the recessed space 110, the display surface of the display screen 200 is made to be flush with or slightly lower than the front surface of the battery body 100. In addition, when the battery module has a cubic structure, the smaller of the three dimensions of the battery module is the thickness direction, and one of the two surfaces distributed along the thickness direction is the front of the battery module, and the other is the back or reverse side of the battery module.

[0031] In this case, the overall appearance of the battery module is relatively regular, which facilitates the layout of the components in the battery module. At the same time, it also facilitates the installation and transportation of the battery module. Furthermore, the recessed space 110 can provide some protection for the display screen 200, preventing the display screen 200 from being bumped or squeezed during the installation and transportation of the battery module.

[0032] Of course, the structure of the portion of the battery body 100 in which the recessed space 110 is formed can be similar to that of other portions of the battery body 100, for example, both including multiple battery cells. Alternatively, the structure of the portion of the battery body 100 in which the recessed space 110 is formed (referred to as the first portion) can be different from that of other portions of the battery body 100 (referred to as the second portion). For example, the first portion can only include structures such as the positive tab 410 and the negative tab 420 in the battery module, while the second portion can include multiple battery cells connected in series and / or in parallel. This article does not limit this.

[0033] Furthermore, the battery module includes a positive tab 410, a negative tab 420, and a circuit board 500. The positive tab 410 and the negative tab 420 in the battery module are both located in the recessed space 110. In the thickness direction of the battery body 100, the circuit board 500 is located on the side of the positive tab 410 and the negative tab 420 that is away from the ground of the recessed space 110. In other words, in the thickness direction of the battery body 100, the positive tab 410 and the negative tab 420 are located entirely below the circuit board 500. This makes the compactness between the components in the battery module relatively better, which is conducive to reducing the volume of the battery module and thus improving the energy density of the battery module. Furthermore, the above-described embodiments facilitate the assembly of components within the battery module. Specifically, in this embodiment, both the positive tab 410 and the negative tab 420 are electrically connected to the circuit board 500 located above the positive tab 410 and the negative tab 420. Correspondingly, in this embodiment, the fuel gauge and the display screen 200 are also connected to the circuit board 500, enabling the battery body 100 to normally power the fuel gauge and the display screen 200 via the circuit board 500. Additionally, the circuit board 500 may also be equipped with devices such as a battery management system (BMS). Furthermore, the shapes and sizes of the positive tab 410, negative tab 420, circuit board 500, and display screen 200, as well as the shape and size of the recessed space 110, can be correspondingly designed so that when the positive tab 410, negative tab 420, and circuit board 500 are all located in the recessed space 110, the display screen 200 can be installed normally in the recessed space 110, and the display surface (i.e., the front) of the display screen 200 can still be flush with or lower than the front of the battery body 100. That is, in this embodiment, the thickness of the display screen 200 is less than the depth of the recessed space 110.

[0034] More specifically, both the display screen 200 and the circuit board 500 can be mounted on the battery body 100 using screws or other connectors. To minimize the number of sharp components in the battery module and prevent them from puncturing individual battery cells during drops or collisions, thus increasing the risk of electrolyte leakage and fire, in another embodiment of this application, the battery module includes a double-sided adhesive layer 610. In this case, the display screen 200 can be positioned on one side of the double-sided adhesive layer 610, and the other side of the double-sided adhesive layer 610 can be connected to the battery body 100. This allows the display screen 200 to be bonded and fixed to the battery body 100 via the double-sided adhesive layer 610, enabling the display screen 200 to form a more reliable and stable fixed assembly relationship with the battery body 100. On the other hand, it can also improve the overall safety of the battery module.

[0035] Optionally, in the embodiments of this application, such as Figure 1As shown, the display screen 200 and the circuit board 500 can be sequentially distributed along the width direction of the battery body 100. In this case, the circuit board 500 can also be fixedly connected to the battery body 100 by the double-sided adhesive layer 610. In other embodiments of this application, the bottom surface of the recessed space 110 and the back surface of the battery body 100 may both be provided with double-sided adhesive layers, and the back side of one end of the single-sided adhesive may be bonded to the back surface of the battery body 100. Then, the single-sided adhesive may be flipped over to wrap around the portion of the battery body 100 where the recessed space 110 is located, and bonded and fixed to the double-sided adhesive layer 610 on the bottom surface of the recessed space 110. At the same time, the circuit board 500 may be bonded to the front side of the single-sided adhesive, and the circuit board 500 may be located in the recessed space 110. Then, by flipping the single-sided adhesive and covering the circuit board again, and by having the other end of the single-sided adhesive bypass the portion where the recessed space 110 is located, and bonded to the back surface of the battery body 100, the installation of the circuit board 500 is completed, and it is ensured that the circuit board 500 can be insulated from the positive tab 410 and the negative tab 420 by the single-sided adhesive.

[0036] As described above, in order to maximize the compactness of the battery module structure and improve its energy density, in this embodiment, the circuit board 500 can be positioned above the positive tab 410 and the negative tab 420. To ensure relatively higher insulation reliability between the components on the circuit board 500 and the positive tab 410 and the negative tab 420, the battery module can also include an insulating layer 620, and an insulating layer 620 is sandwiched between the positive tab 410 and the negative tab 420 and the circuit board 500, so as to ensure that the positive tab 410 and the negative tab 420 can form a good insulation relationship with the components on the circuit board 500.

[0037] Specifically, the insulating layer 620 can be formed of insulating materials such as plastic, and in a plane perpendicular to the thickness direction of the circuit board 500, the projection of the insulating layer 620 can cover the projection of the circuit board 500. This ensures that both the positive tab 410 and the negative tab 420 can form a good insulating relationship with the circuit board 500 through the insulating layer 620. Of course, it should be noted that during the assembly of the battery module, the circuit board 500, the positive tab 410, and the negative tab 420 are all electrically connected to the battery body 100, which does not contradict the above.

[0038] As described above, the circuit board 500 can be disposed within the recessed space 110. Typically, the circuit board 500 is a plate-like or sheet-like structure, meaning its thickness is usually relatively small. This makes the corners and sides of the circuit board 500 relatively sharp. Therefore, to prevent the circuit board 500 from damaging or puncturing the battery body 100 in the event of a drop or collision, in one specific embodiment of this application, the battery module may further include a buffer layer 630. The buffer layer 630 is disposed between the circuit board 500 and the recessed space 110 of the battery body 100 along the length direction of the battery body 100. More intuitively, in this embodiment of the application, the length direction, width direction, and thickness direction of the battery body 100 are respectively... Figure 2 In the X and Y directions, the direction perpendicular to both X and Y is the thickness direction of the battery body 100.

[0039] More specifically, the circuit board 500 is generally flat. Therefore, taking the bottom surface of the recessed space 110 being parallel to the circuit board 500 as an example (i.e., the circuit board 500 is parallel or substantially parallel to the front surface of the battery body 100), a buffer layer 630 can be sandwiched between the side of the circuit board 500 and the side of the recessed space 110. This buffer layer 630 isolates the circuit board 500 and the battery body 100, preventing direct contact between the circuit board 500 and the battery body 100, thus reducing the risk to the battery module. Specifically, the buffer layer 630 can be formed of materials such as foam. In one specific embodiment of this application, the buffer layer 630 can be formed of polycarbonate, which has good impact resistance, relatively high flame retardancy, and good heat resistance. In addition, the thickness and other parameters of the buffer layer 630 can be flexibly determined according to actual needs. As for the coverage area of ​​the buffer layer 630, the size of the buffer layer 630 can be larger than the corresponding dimension of the side of the circuit board 500. In simple terms, the length of the buffer layer 630 can be greater than the length of the corresponding side of the circuit board 500, and the width of the buffer layer 630 can be greater than the width of the corresponding side of the circuit board 500, so as to ensure that the buffer layer 630 can provide a good insulating effect for the battery body 100.

[0040] As described above, the battery module disclosed in this application includes a fuel gauge, which can measure the remaining charge of the battery body 100. Of course, depending on the specific parameters of the selected fuel gauge, the fuel gauge can also be used to measure the cycle count and health of the battery body 100. In this case, the display screen 200 can also be used to display the cycle count and health of the battery body 100. Furthermore, if the display area of ​​the display screen 200 is sufficient, the display screen 200 can also display certification marks of the battery module, such as 3C certification and environmental certification marks. Additionally, the logo of the battery module manufacturer can also be displayed on the display screen 200.

[0041] Furthermore, the battery module disclosed in this application embodiment may also include a detection device, which cooperates with the battery body 100 and is communicatively connected to the display screen 200. This allows the display screen 200 to further display the detection information obtained by the detection device in performing detection work on the battery body 100, thereby further improving the ease of use and safety of the battery module.

[0042] Optionally, the detection device includes a temperature sensor, which can be installed inside and / or on the outer surface of the battery body 100 to detect the internal and / or external temperature of the battery body 100, thereby facilitating the user to obtain the specific working status of the battery module, ensuring that the user can promptly detect abnormal heating conditions of the battery module, and improving the safe operation capability of the battery module.

[0043] In another embodiment of this application, the detection device may further include a humidity sensor, which can be installed on the outside of the battery body 100 to detect the humidity of the working environment of the battery module, thereby preventing the battery module from operating in a high-humidity environment and posing a significant safety risk. Of course, the humidity sensor can also be installed at other locations on the battery body 100 to detect the humidity at the corresponding locations, which will not be described in detail herein.

[0044] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0045] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A battery module, characterized by, The battery body (100) is provided with a battery gauge, a display screen (200) and a wireless communication device (300), wherein the battery gauge and the display screen (200) are electrically connected with the battery body (100), the battery gauge is used for detecting the residual capacity of the battery body (100), the battery gauge is in communication connection with the display screen (200), the display screen (200) is used for displaying the residual capacity of the battery body (100), and the wireless communication device (300) stores parameter information of the battery body (100).

2. The battery module of claim 1, wherein, In the thickness direction of the battery body, the front surface of the battery body (100) is provided with a sunken space (110), and the display screen (200) is embedded in the sunken space (110).

3. The battery module of claim 2, wherein, In the thickness direction, the back surface of the display screen is arranged in abutment with the bottom surface of the sunken space (110), and the thickness of the display screen is less than or equal to the depth of the sunken space.

4. The battery module of claim 2, wherein, The battery module comprises a positive electrode lug (410), a negative electrode lug (420) and a circuit board (500), the positive electrode lug (410) and the negative electrode lug (420) are arranged in the sunken space (110), in the thickness direction, the circuit board (500) is located on the side of the positive electrode lug (410) and the negative electrode lug (420) away from the bottom surface of the sunken space (110), and the positive electrode lug (410), the negative electrode lug (420) and the circuit board (500) are electrically connected with the battery body (100).

5. The battery module of claim 4, wherein, Further comprising a double-sided adhesive layer (610), in the width direction of the battery body (100), the display screen (200) is located on one side of the circuit board (500), and the display screen (200) is fixedly bonded with the battery body (100) through the double-sided adhesive layer (610).

6. The battery module of claim 4, wherein, Further comprising an insulating layer (620), the positive electrode lug (410) and the negative electrode lug (420) are arranged with the insulating layer (620) between the circuit board (500).

7. The battery module of claim 4, wherein, Further comprising a buffer layer (630), in the length direction of the battery body, the buffer layer (630) is arranged between the circuit board (500) and the sunken space (110).

8. The battery module of claim 1, wherein, The display screen (200) comprises an LED display screen.

9. The battery module of claim 1, wherein, The wireless communication device (300) comprises an NFC chip.

10. The battery module of claim 1, wherein, Further comprising a detection device, the detection device cooperates with the battery body (100), and the detection device is in communication connection with the display screen (200), and the display screen (200) is further used for displaying detection information of the detection device.

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