Bluetooth module for capacity transmission of battery pack based on shared BMS (Battery Management System)

Abstract

The utility model belongs to the technical field of BMS battery packs, and particularly relates to a Bluetooth module for capacity transmission based on a shared BMS battery pack, which comprises a circuit board. A power connection seat and a current sensor are installed on the circuit board and located on the side, away from the antenna, of the chip, a power connection hole is formed in the side, close to the current sensor, of the power connection seat, a power connection electrode is fixed to one side in the power connection hole, and a communication electrode is slidably installed on the other side in the power connection hole. According to the Bluetooth module for capacity transmission based on the shared BMS battery pack, when the current intensity is abnormally high, two electromagnets are controlled to be started at the same time to generate magnetism, the electromagnets perform magnetic adsorption on an iron plate, and a translation plate is pulled towards a current sensor, so that a communication electrode and a power connection electrode are released from collision, and power supply to the Bluetooth module is ended; the current is detected, and the power supply can be quickly cut off when the current is detected to be abnormal, so that the Bluetooth module is effectively protected from being damaged by large current impact, the stability of the system is improved, and the service life of the system is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of BMS battery packs, and in particular to a Bluetooth module for transmitting capacity of a shared BMS battery pack. Background Art

[0002] With the rapid development of electric vehicles and renewable energy storage systems, battery management systems (BMS) play a vital role in monitoring, controlling, and optimizing battery pack performance. In the application scenario of shared BMS battery packs for electric vehicles, when the user's mobile phone is in an environment with poor network signal or the phone is turned off, it cannot receive the battery information of the BMS battery pack from the background. In addition, the background and the user's mobile phone are transmitted through the network, which has the problem of long communication channels and serious data timeliness delays. However, using Bluetooth communication technology, the BMS battery pack broadcasts BMS battery pack information once every 1 second. The user's mobile phone calls the mobile phone Bluetooth module to scan the battery pack information broadcast by the BMS battery pack Bluetooth every 4 seconds. The user's mobile phone compares the timeliness of the scanned BMS battery pack information with the timeliness of the network data and displays the newer information on the user's mobile phone interface, making the BMS battery pack information more accurate and timely.

[0003] In existing Bluetooth module designs, when the current is too large, if there is no appropriate power-off mechanism, the high current will be directly transmitted to the Bluetooth module. Since the Bluetooth module itself is designed for low-power communication, its internal circuit elements and components are relatively weak in tolerance to high current environments. The unstable current will not only affect the normal operation of the Bluetooth module, such as causing communication interruption and data transmission errors, but more seriously, long-term or momentary current overload may cause permanent damage to the Bluetooth module circuit, or even directly damage the Bluetooth module. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors have conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the present invention is to provide a Bluetooth module for transmitting the capacity of a shared BMS battery pack, so as to solve the current technical problem that when the current is too large, if there is no appropriate power-off processing mechanism, the Bluetooth module will be damaged.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A Bluetooth module for transmitting battery pack capacity based on a shared BMS includes a circuit board with an antenna and a chip mounted on both sides of the top of the circuit board;

[0008] A power receiving socket and a current sensor are respectively installed on the circuit board and on the side of the chip away from the antenna. A power receiving hole is opened on the side of the power receiving socket close to the current sensor. A power receiving electrode is fixed on one side inside the power receiving hole, and a connecting electrode is slidably installed on the other side inside the power receiving hole. A spring wire is installed between the output end of the current sensor and the input end of the connecting electrode. A translation component for driving the connecting electrode to move is installed on the side of the power receiving socket close to the current sensor.

[0009] As an improved technical solution, the translation assembly includes a laterally movable translation plate and two electromagnets, and the connecting electrode is installed on the side of the translation plate close to the power socket. Iron plates are fixed at both ends of the translation plate away from the power socket. The two electromagnets are facing the two iron plates, and the opposite surfaces of the electromagnets and the iron plates are magnetically adsorbed.

[0010] As an improved technical solution, the translation assembly also includes two guide rods fixed to the side of the power socket close to the current sensor, and the translation plate is slidably installed between the two guide rods, and a rod seat is fixed to the end of the guide rod away from the power socket, and a spring body is installed on the guide rod and between the rod seat and the opposite surface of the translation plate.

[0011] As an improved technical solution, sliders are integrally formed and installed in the middle of the top and bottom ends of the translation plate, and sliding holes for the guide rods to slide are provided on the sliders.

[0012] As an improved technical solution, a protective cover is fixed on the top of the circuit board and between the power socket and the current sensor, and the spring wire, rod seat, electromagnet, translation plate, iron plate, connecting electrode, guide rod, slider and spring body are all located in the inner cavity of the protective cover.

[0013] As an improved technical solution, a group of side holes are opened on both sides of the circuit board, and the side holes are arranged in a semicircular shape.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] 1. When the current intensity is abnormally high, the utility model controls the two electromagnets to start simultaneously to generate magnetism. The electromagnets magnetically adsorb the iron plate and pull the translation plate toward the current sensor, so that the connecting electrode and the power electrode are released from conflict, ending the power supply to the Bluetooth module and detecting the current. When the current abnormality is detected, the power supply can be quickly cut off, thereby effectively protecting the Bluetooth module from damage caused by large current impact and improving the stability and service life of the system.

[0016] 2. In the present invention, when the translation plate moves toward the current sensor, the slider compresses the spring body. When the electromagnet is closed, the elastic reset action of the spring body pushes the connecting electrode back to reset it and re-contact the power-connected electrode to energize it, thereby achieving a self-reset effect of the connecting electrode.

[0017] 3. In the present invention, the setting of the protective cover plays a role in shielding and protecting the circuit, which on the one hand improves the overall aesthetics of the Bluetooth module and on the other hand prevents the potential safety hazards caused by exposed circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of a Bluetooth module for transmitting shared BMS battery pack capacity in the present invention.

[0020] Figure 2 This is a structural schematic diagram of a power socket, protective cover and current sensor based on a Bluetooth module for transmitting shared BMS battery pack capacity in the utility model.

[0021] Figure 3 This is a schematic cross-sectional view of a power socket based on a Bluetooth module for transmitting shared BMS battery pack capacity.

[0022] Description of reference numerals:

[0023] 1. Circuit board; 11. Antenna; 12. Side hole; 13. Chip; 2. Power connection socket; 21. Protective cover; 22. Current sensor; 23. Spring wire; 24. Rod seat; 25. Electromagnet; 26. Translation plate; 27. Iron plate; 28. Connecting electrode; 29. ​​Guide rod; 210. Slider; 211. Spring body; 212. Power connection electrode; 213. Power connection hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or an option in which both A and B are satisfied.

[0027] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0028] like Figures 1 to 3 As shown together, this embodiment provides a Bluetooth module for transmitting the capacity of a shared BMS battery pack. The Bluetooth module for transmitting the capacity of a shared BMS battery pack includes a circuit board 1. An antenna 11 and a chip 13 are respectively installed on both sides of the top of the circuit board 1.

[0029] An electrical socket 2 and a current sensor 22 are installed on the circuit board 1 on the side of the chip 13 away from the antenna 11. A power connection hole 213 is provided on the side of the power connection hole 213 close to the current sensor 22. A power connection electrode 212 is fixed on one side inside the power connection hole 213. The power connection electrode 212 and the chip 13 are connected by a wire. A connecting electrode 28 is slidably installed on the other side of the power connection hole 213. A spring wire 23 is installed between the output end of the current sensor 22 and the input end of the connecting electrode 28. A translation component for driving the connecting electrode 28 to move is installed on the side of the power connection hole 213 close to the current sensor 22.

[0030] The current sensor 22 monitors the current intensity. When the current intensity is normal, the Bluetooth module is powered normally. When the current intensity is abnormally high, the two electromagnets 25 are controlled to start at the same time to generate magnetism. The electromagnet 25 magnetically adsorbs the iron plate 27 and pulls the translation plate 26 toward the direction of the current sensor 22, so that the connecting electrode 28 and the power electrode 212 are released from the conflict, ending the power supply to the Bluetooth module. The current is detected and the power supply can be quickly cut off when the current abnormality is detected, thereby effectively protecting the Bluetooth module from damage caused by large current shocks and improving the stability and service life of the system.

[0031] like Figures 1 to 3 As shown together, in this embodiment, the translation assembly includes a laterally movable translation plate 26 and two electromagnets 25, and the connecting electrode 28 is installed on the side of the translation plate 26 close to the power socket 2, and iron plates 27 are fixed at both ends of the translation plate 26 away from the power socket 2. The two electromagnets 25 are opposite to the two iron plates 27, and the opposite surfaces of the electromagnets 25 and the iron plates 27 are magnetically adsorbed. The electromagnets 25 use separate control circuits and power supply circuits.

[0032] like Figures 1 to 3 As shown together, in this embodiment, the translation assembly also includes two guide rods 29 fixed to the side of the power socket 2 close to the current sensor 22, and the translation plate 26 is slidably installed between the two guide rods 29, and the two guide rods 29 are symmetrically distributed with the connecting electrode 28 as the symmetry point. A rod seat 24 is fixed to the end of the guide rod 29 away from the power socket 2, and a spring body 211 is installed on the guide rod 29 and between the opposite surfaces of the rod seat 24 and the translation plate 26.

[0033] like Figures 1 to 3 As shown together, in this embodiment, the top and the middle of the bottom of the translation plate 26 are integrally formed with a slider 210, and a sliding hole for the guide rod 29 to slide is opened on the slider 210. When the translation plate 26 moves toward the current sensor 22, the slider 210 compresses the spring body 211. When the electromagnet 25 is closed, under the elastic reset action of the spring body 211, the connecting electrode 28 is pushed back and reset to contact the power electrode 212 again to be energized, thereby achieving a self-reset effect of the connecting electrode 28.

[0034] like Figures 1 to 2 As shown together, in this embodiment, a protective cover 21 is fixed on the top of the circuit board 1 and located between the power socket 2 and the current sensor 22, and the spring wire 23, rod seat 24, electromagnet 25, translation plate 26, iron plate 27, connecting electrode 28, guide rod 29, slider 210 and spring body 211 are all located in the inner cavity of the protective cover 21. The setting of the protective cover 21 plays a shielding and protection role for the circuit, which on the one hand improves the overall aesthetics of the Bluetooth module, and on the other hand prevents the safety hazards of exposed circuits.

[0035] like Figure 1 As shown, in this embodiment, a group of side holes 12 are opened on both sides of the circuit board 1, and the side holes 12 are arranged in a semicircular shape.

[0036] When in use, when the Bluetooth module is passed, the power line is connected to the input end of the current sensor 22. Initially, the electromagnet 25 is in the closed state, and the spring body 211 pushes the slider 210 toward the power socket 2, so that the connection electrode 28 and the power electrode 212 are in contact and energized, thereby powering the Bluetooth module.

[0037] When the Bluetooth module is powered, the current sensor 22 monitors the current intensity. When the current intensity is normal, the Bluetooth module is powered normally. When the current intensity is abnormally high, the two electromagnets 25 are controlled to start simultaneously to generate magnetism. The electromagnets 25 magnetically attract the iron plate 27 and pull the translation plate 26 toward the current sensor 22, so that the connection electrode 28 and the power electrode 212 are released from the conflict, and the power supply to the Bluetooth module is terminated.

[0038] When the translation plate 26 moves toward the current sensor 22 , the slider 210 compresses the spring body 211 . When the electromagnet 25 is closed, the spring body 211 elastically resets the connecting electrode 28 and pushes it back to contact the power electrode 212 to energize it.

[0039] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. A Bluetooth module for transmitting battery pack capacity based on a shared BMS, characterized by: It comprises a circuit board (1), with an antenna (11) and a chip (13) respectively mounted on both sides of the top of the circuit board (1); An electric connection seat (2) and a current sensor (22) are respectively installed on the circuit board (1) and located on a side of the chip (13) away from the antenna (11); a power connection hole (213) is provided on a side of the power connection seat (2) close to the current sensor (22); a power connection electrode (212) is fixed on one side of the power connection hole (213); a connecting electrode (28) is slidably installed on the other side of the power connection hole (213); a spring wire (23) is installed between the output end of the current sensor (22) and the input end of the connecting electrode (28); and a translation component for driving the connecting electrode (28) to move is installed on the side of the power connection seat (2) close to the current sensor (22).

2. The Bluetooth module for transmitting battery pack capacity based on a shared BMS according to claim 1, characterized in that: The translation assembly comprises a laterally movable translation plate (26) and two electromagnets (25), and a connecting electrode (28) is mounted on a side of the translation plate (26) close to the electric socket (2), and iron plates (27) are fixed at both ends of the translation plate (26) away from the electric socket (2), the two electromagnets (25) face the two iron plates (27), and the opposing surfaces of the electromagnets (25) and the iron plates (27) are magnetically attracted.

3. The Bluetooth module for transmitting battery pack capacity based on a shared BMS according to claim 2, characterized in that: The translation assembly further comprises two guide rods (29) fixed to a side of the power receiving seat (2) close to the current sensor (22), and the translation plate (26) is slidably mounted between the two guide rods (29), a rod seat (24) is fixed to one end of the guide rod (29) away from the power receiving seat (2), and a spring body (211) is mounted on the guide rod (29) and between the opposite surfaces of the rod seat (24) and the translation plate (26).

4. The Bluetooth module for transmitting battery pack capacity based on a shared BMS according to claim 3, characterized in that: The top and the middle of the bottom of the translation plate (26) are integrally formed with a slider (210), and a sliding hole for the guide rod (29) to slide is provided on the slider (210).

5. The Bluetooth module for transmitting battery pack capacity based on shared BMS according to claim 4, characterized in that: A protective cover (21) is fixed on the top of the circuit board (1) and located between the power receiving seat (2) and the current sensor (22), and the spring wire (23), the rod seat (24), the electromagnet (25), the translation plate (26), the iron plate (27), the connecting electrode (28), the guide rod (29), the slider (210) and the spring body (211) are all located in the inner cavity of the protective cover (21).

6. The Bluetooth module for transmitting battery pack capacity based on a shared BMS according to claim 5, characterized in that: A group of side holes (12) are provided on both sides of the circuit board (1), and the side holes (12) are arranged in a semicircular shape.

Images