Battery system with power-off protection function

Abstract

The utility model belongs to the technical field of batteries, and particularly relates to a battery system with a power-off protection function, which comprises a battery and a protection plate arranged at one end of the battery, the protection plate is used for controlling the on-off of a circuit of the battery, the battery is electrically connected with a connector, the connector is provided with a temperature sensing module, and the protection plate is respectively and electrically connected with the battery and the temperature sensing module. The temperature sensing module is arranged on the connector, the temperature of the connector can be monitored, power-off protection of the protection plate can be triggered when the temperature of the connector is too high, and the connector is prevented from being damaged or a battery is prevented from being scrapped.

Description

Technical Field

[0001] This utility model belongs to the technical field of batteries, specifically relating to a battery system with power failure protection function. Background Technology

[0002] As the number of electric vehicle users increases, the operating environment of vehicle batteries becomes more complex, leading to frequent safety issues. Numerous cases of battery fires caused by connector overheating have been reported. Over time, battery connectors wear down, resulting in poor contact. Furthermore, the market offers a wide variety of discharge coupler specifications from numerous manufacturers, leading to poor compatibility; some connectors are even unsuitable for long-term use. These problems can easily cause connector overheating and damage, and even battery fires.

[0003] Therefore, there is an urgent need to propose a new technical solution to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a battery system with power-off protection function to address the shortcomings of the existing technology. This system can monitor the temperature on the connector and trigger the power-off protection of the protection board when the connector temperature is too high, thus preventing damage to the connector or battery failure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A battery system with power failure protection function includes a battery and a protection board disposed at one end of the battery. The protection board is used to control the circuit switching of the battery. The battery is electrically connected to a connector, and a temperature sensing module is disposed on the connector. The protection board is electrically connected to the battery and the temperature sensing module respectively.

[0007] Preferably, the connector is electrically connected to a first wire and a second wire, the protection board is electrically connected to the first wire and the battery respectively, the battery and the second wire are electrically connected, a sleeve is sleeved on the outside of one end of the first wire, and the temperature sensing module is disposed between the sleeve and the first wire.

[0008] Preferably, the temperature sensing module is electrically connected to a first connector, and the protection board is electrically connected to a second connector, with the first connector and the second connector being electrically connected.

[0009] Preferably, a first protective sleeve is provided on the outer side of the first conductor.

[0010] Preferably, a second protective sleeve is provided on the outer side of the second conductor.

[0011] Preferably, the temperature sensing module and the first connector are electrically connected via a third wire, one end of which passes between the first protective sleeve and the first wire.

[0012] Preferably, a heat dissipation component is provided on the outer side of the protective plate.

[0013] Preferably, the protection board is provided with a communication module, and the communication module is electrically connected to the protection board.

[0014] Preferably, the protection board is provided with a sound-generating module, and the sound-generating module is electrically connected to the protection board.

[0015] Preferably, the surface of the connector has at least one through hole.

[0016] The beneficial effects of this utility model are as follows: This utility model includes a battery and a protection board disposed at one end of the battery. The protection board is used to control the on / off state of the battery circuit. The protection board is a BMS (Battery Management System). The battery is electrically connected to a connector for charging and discharging the battery. A temperature sensing module is disposed on the connector. The protection board is electrically connected to both the battery and the temperature sensing module. The temperature sensing module is a temperature probe used to monitor the real-time temperature of the connector and then feeds the temperature information back to the protection board. The protection board takes corresponding actions based on the feedback temperature information. For example, if the temperature of the connector reaches above 90 degrees Celsius during battery use, the protection function of the protection board is triggered, and the charging / discharging MOS circuit on the protection board is disconnected and no longer outputs, thereby preventing damage to the connector or failure of the battery. This utility model, by setting a temperature sensing module on the connector, can monitor the temperature of the connector. When the connector temperature is too high, it will trigger the power-off protection of the protection board to prevent damage to the connector or failure of the battery. This setting effectively maintains the safety of battery use, cuts off power in time, extends the product's life cycle, and realizes temperature monitoring and early warning through the temperature sensing module, realizing the automatic power-off function of the battery, and ensuring the personal and property safety of users. Attached Figure Description

[0017] Figure 1 This is one of the overall structural schematic diagrams of this utility model.

[0018] Figure 2 This is the second schematic diagram of the overall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the overall structure of the connector of this utility model.

[0020] Figure 4 This is a schematic diagram of the overall structure of the protective plate of this utility model.

[0021] The components are as follows: 1. Battery; 11. Positive electrode; 12. Negative electrode; 2. Protection board; 21. Second connector; 22. Heat sink; 23. Communication module; 24. Sound module; 25. MOS circuit; 3. Connector; 31. First wire; 32. Second wire; 33. Sleeve; 34. First protective sleeve; 35. Second protective sleeve; 36. Through hole; 4. Temperature sensing module; 41. First connector; 42. Third wire. Detailed Implementation

[0022] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." In this utility model, unless otherwise explicitly specified and limited, terms such as "installed," "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described in detail with reference to specific embodiments, but this is not intended to limit the present invention.

[0024] Example 1

[0025] A battery system with power failure protection includes a battery 1 and a protection board 2 disposed at one end of the battery 1. The protection board 2 and the battery 1 are connected in series. The protection board 2 is used to disconnect the circuit connection of the battery 1 when the battery system fails, so that the battery 1 is open-circuited to ensure safety. When the circuit is running normally, the protection board 2 is used to conduct the circuit. The protection board 2 is a BMS (Battery Management System). The battery 1 is electrically connected to a connector 3, which is used to charge and discharge the battery 1. A temperature sensing module 4 is disposed on the connector 3. The protection board 2 is electrically connected to the battery 1, the connector 3, and the temperature sensing module 4. The temperature sensing module 4 is a temperature sensor probe used to monitor the real-time temperature of the connector 3 and then feed the temperature information back to the protection board 2. The protection board 2 takes corresponding actions based on the feedback temperature information. For example, when the temperature of the connector 3 reaches above 90 degrees Celsius during the use of the battery 1, the protection function of the protection board 2 will be triggered, and the charging and discharging MOS circuit 25 on the protection board 2 will be disconnected and no longer output, thereby preventing damage to the connector 3 or the battery 1 from being scrapped. By installing a temperature sensing module 4 on connector 3, the temperature of connector 3 can be monitored. When the temperature of connector 3 is too high, it will trigger the power-off protection of protection board 2 to prevent damage to connector 3 or failure of battery 1. This setting can both maximize the performance of battery 1 and ensure its safe use. When connector 3 is short-circuited, BMS will directly function, MOS circuit 25 will be disconnected, thereby disconnecting the current of battery 1 and ensuring safety. When connector 3 is not short-circuited but experiences abnormal temperature rise, temperature sensing module 4 will function. When the temperature of connector 3 reaches the protection value, temperature sensing module 4 will send a feedback signal to BMS, and BMS will actively disconnect the circuit, thereby achieving the purpose of protecting the battery and connector.

[0026] In this embodiment, connector 3 is electrically connected to a first wire 31 and a second wire 32. Protection plate 2 is electrically connected to the first wire 31 and battery 1, respectively. Battery 1 and the second wire 32 are electrically connected. A sleeve 33 is fitted over one end of the first wire 31. A temperature sensing module 4 is disposed between the sleeve 33 and the first wire 31. The first wire 31 is the negative wire and is electrically connected to the negative terminal 12 of battery 1. The second wire 32 is the positive wire and is electrically connected to the positive terminal 11 of battery 1. Protection plate 2 and battery 1 are connected in series. Specifically, connector 3 is connected to protection plate 1 via the first wire 31 and the second wire 32. The protection board 2 is electrically connected to the negative terminal 12 of the battery 1. The protection board 2 is equipped with a MOS circuit 25, which is electrically connected to the first wire 31 and the negative terminal 12 respectively. It is used to control the circuit on and off of the battery 1. When the circuit fails, the MOS circuit 25 is turned off, causing the battery 1 to be disconnected. The positive terminal 11 of the battery 1 is electrically connected to the connector 3 through the second wire 32. The circuit will pass through the MOS circuit 25 on the protection board 2, so that the protection board 2 can disconnect the MOS circuit 25 when the circuit is abnormal, thereby disconnecting the circuit and ensuring safety. The sleeve 33 is located at the end of the first wire 31 near the connector 3. The temperature sensing module 4 is located here, which can effectively monitor the temperature of the connector 3 without hindering the normal operation of the connector 3. The sleeve 33 is a heat shrink tubing, which can fix the temperature sensing module 4 at the end of the first wire 31 near the connector 3, preventing the temperature sensing module 4 from shifting. This allows the temperature sensing module 4 to stably and accurately monitor the temperature of the connector 3. In addition, the sleeve 33 can also reduce the difficulty of installing the temperature sensing module 4. The sleeve 33 is directly put on the first wire 31, and then the temperature sensing module 4 is placed between the sleeve 33 and the first wire 31. Then the sleeve 33 is heated, and the sleeve 33 shrinks when heated, which can fix the temperature sensing module 4 on the first wire 31. Compared with the glue bonding method, this installation method is more convenient for subsequent maintenance and replacement of the temperature sensing module 4.

[0027] In this embodiment, the temperature sensing module 4 is electrically connected to a first connector 41, and the protection board 2 is electrically connected to a second connector 21. The first connector 41 and the second connector 21 are electrically connected. By providing the first connector 41 and the second connector 21, it is convenient for the user to remove the temperature sensing module 4 from the protection board 2. When the temperature sensing module 4 needs to be replaced, the user only needs to unplug the old temperature sensing module 4 and then insert the new temperature sensing module 4, which improves the efficiency of replacing the temperature sensing module 4.

[0028] Example 2

[0029] The difference between this embodiment and Embodiment 1 is that a first protective sleeve 34 is provided on the outside of the first conductor 31. The first protective sleeve 34 is a tubular structure, which is fitted on the outside of the first conductor 31 to protect the first conductor 31 and prevent damage to the first conductor 31 that could lead to a short circuit.

[0030] In this embodiment, a second protective sleeve 35 is provided on the outside of the second conductor 32. The second protective sleeve 35 is a tubular structure, which is fitted on the outside of the second conductor 32 to protect the second conductor 32 and prevent damage to the second conductor 32 that could lead to a short circuit.

[0031] In this embodiment, the temperature sensing module 4 and the first connector 41 are electrically connected via a third wire 42, one end of which passes between the first protective sleeve 34 and the first wire 31. By providing the third wire 42, the distance between the temperature sensing module 4 and the protection plate 2 can be extended, preventing the protection plate 2 from being burned when the connector 3 fails. The fact that one end of the third wire 42 passes between the first protective sleeve 34 and the first wire 31 also protects the third wire 42, preventing damage to the third wire 42 from causing the temperature sensing module 4 to be unable to feed back temperature information to the protection plate 2.

[0032] In this embodiment, a heat sink 22 is provided on the outer side of the protection board 2. The heat sink 22 is used to dissipate heat from the protection board 2, specifically to dissipate heat from the MOS circuit 25 on the protection board 2, which can prevent the protection board 2 from overheating and causing the protection circuit to fail.

[0033] In this embodiment, a communication module 23 is provided on the protection board 2, and the communication module 23 is electrically connected to the protection board 2. The communication module 23 is a 4G module, which facilitates remote software upgrades and monitoring of background data by the user. When the battery 1 malfunctions, the user can be notified in a timely manner, so that the user can deal with it as soon as possible, which can reduce the user's losses and avoid accidents.

[0034] In this embodiment, a sound-emitting module 24 is provided on the protection board 2, and the sound-emitting module 24 is electrically connected to the protection board 2. The sound-emitting module 24 is a buzzer, which can serve as an early warning. When the temperature approaches the protection value, the sound-emitting module 24 will sound an alarm to remind the user to deal with the fault as soon as possible.

[0035] In this embodiment, the surface of the connector 3 has at least one through hole 36. The connector 3 can be fixed to the casing of the battery 1 by screws passing through the through hole 36, preventing the connector 3 from shaking and facilitating charging and discharging by the user.

[0036] The other structures in this embodiment are the same as those in Embodiment 1, and will not be described again here.

[0037] Obviously, this utility model includes a battery and a protection board disposed at one end of the battery. The protection board is used to disconnect the battery's circuit connection. The protection board is a BMS (Battery Management System). The battery is electrically connected to a connector for charging and discharging the battery. A temperature sensing module is disposed on the connector. The protection board is electrically connected to both the battery and the temperature sensing module. The temperature sensing module is a temperature probe used to monitor the real-time temperature of the connector and then feeds the temperature information back to the protection board. The protection board takes corresponding actions based on the feedback temperature information. For example, if the temperature of the connector reaches above 90 degrees Celsius during battery use, the protection function of the protection board is triggered, and the charging and discharging MOS circuit on the protection board is disconnected, ceasing output, thereby preventing damage to the connector or battery failure. This utility model, by setting a temperature sensing module on the connector, can monitor the temperature of the connector. When the connector temperature is too high, it will trigger the power-off protection of the protection board to prevent damage to the connector or battery failure. This setting effectively maintains the safety of battery use, timely power-off, and extends the product's life cycle. The temperature monitoring and early warning through the temperature sensing module realizes the automatic power-off function of the battery, ensuring the personal and property safety of users.

[0038] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on the utility model are within the protection scope of the utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A battery system having a power-off protection function, characterized by comprising: The utility model provides a battery (1) and the protection board (2) of setting in the battery (1) one end, the protection board (2) is used for controlling the circuit on-off of battery (1), the battery (1) is electrically connected with connector (3), the temperature sensing module (4) is arranged on the connector (3), the protection board (2) is electrically connected to battery (1) and temperature sensing module (4) respectively.

2. The battery system having a power-off protection function according to claim 1, wherein The connector (3) is electrically connected with first wire (31) and second wire (32), the protection board (2) is electrically connected to first wire (31) and battery (1) respectively, battery (1) and second wire (32) are electrically connected, one end of first wire (31) is externally sleeved with sleeve (33), temperature sensing module (4) is arranged between sleeve (33) and first wire (31).

3. The battery system having a power-off protection function according to claim 2, wherein The temperature sensing module (4) is electrically connected with first joint (41), the protection board (2) is electrically connected with second joint (21), the first joint (41) and the second joint (21) are electrically connected.

4. The battery system having a power-off protection function according to claim 3, wherein The first wire (31) is externally sleeved with the first protective sleeve (34).

5. The battery system having a power-off protection function according to claim 2, wherein The second wire (32) is externally sleeved with the second protective sleeve (35).

6. The battery system having a power-off protection function according to claim 4, wherein The temperature sensing module (4) and the first joint (41) are electrically connected through the third wire (42), one end of the third wire (42) passes through between the first protective sleeve (34) and the first wire (31).

7. The battery system having a power-off protection function according to claim 1, wherein The protection board (2) is provided with a heat dissipation member (22) on the outside.

8. The battery system having a power-off protection function according to claim 1, wherein The protection board (2) is provided with a communication module (23), and the communication module (23) is electrically connected with the protection board (2).

9. The battery system having a power-off protection function according to claim 1, wherein The protection board (2) is provided with a sound generating module (24), and the sound generating module (24) is electrically connected with the protection board (2).

10. The battery system having a power-off protection function according to claim 1, wherein The surface of the connector (3) has at least one through hole (36).

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