CN117748630A - Battery system and detection method of protection device thereof - Google Patents
Battery system and detection method of protection device thereof Download PDFInfo
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- CN117748630A CN117748630A CN202211119817.1A CN202211119817A CN117748630A CN 117748630 A CN117748630 A CN 117748630A CN 202211119817 A CN202211119817 A CN 202211119817A CN 117748630 A CN117748630 A CN 117748630A
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- protection device
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 230000002159 abnormal effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 8
- 230000005856 abnormality Effects 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000013500 data storage Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A battery system and a detection method of a protection device thereof are provided, wherein the battery system comprises a bridge, a main battery module and the protection device. The bridge comprises a first connecting terminal and a second connecting terminal. The main battery module is electrically coupled to the first connection terminal and includes a controller. The protection device comprises a detectable unit, wherein when the protection device is connected with the second connection terminal, the controller judges the state of the second connection terminal through the detectable unit. By confirming that the connection terminal is normal to charge/discharge the battery, the present disclosure can reduce the occurrence of damage to the battery system due to abnormality of the connection terminal, thereby improving the stability and safety of the battery system.
Description
Technical Field
The present disclosure relates to a battery system, and more particularly to a battery system and a protection device thereof capable of detecting abnormality of a connection terminal.
Background
Many systems today use batteries to reserve some charging terminals for connection to a charger or more batteries. These charging terminals are usually used with a protective cover to prevent the invasion of foreign matters or liquid. However, the protective cover may lose its protective function due to aging of the material, so that foreign matters or liquid still invade the charging terminal. In this case, once a voltage is directly output to the charging terminal, it may cause electrolysis or short-circuiting of the charging terminal, thereby damaging the system or even causing a hazard to the user. Therefore, how to reduce the damage to the system or the harm to the user caused by the abnormality of the charging terminal is one of the problems to be improved in the art.
Disclosure of Invention
One embodiment of the present disclosure is a battery system. The battery system comprises a bridge, a main battery module and a protection device. The bridge comprises a first connecting terminal and a second connecting terminal. The main battery module is electrically coupled to the first connection terminal and includes a controller. The protection device comprises a detectable unit, wherein when the protection device is connected with the second connection terminal, the controller judges the state of the second connection terminal through the detectable unit.
In some embodiments, the bridge further includes a third connection terminal, and the third connection terminal is used for electrically coupling the secondary battery module.
In some embodiments, the controller obtains the potential information through the detectable unit, and determines the state of the second connection terminal according to the potential information.
In some embodiments, when the protection device is not connected to the second connection terminal, the controller cannot obtain the potential information, so as to determine that the second connection terminal is in an abnormal state.
In some embodiments, the detectable element is a resistor, a capacitor, or a light sensor.
In some embodiments, the controller includes an analog-to-digital converter and an arithmetic circuit. The analog-to-digital converter is used for receiving the feedback signal through the detectable unit and performing analog-to-digital conversion on the feedback signal to generate a voltage value. The operation circuit is coupled to the analog-to-digital converter, and is used for comparing the voltage value with a default voltage value and judging the state of the second connection terminal according to the comparison result of the voltage value and the default voltage value.
In some embodiments, the bridge further includes a fourth connection terminal, and the fourth connection terminal is configured to electrically couple to the charging device.
Another embodiment of the present disclosure is a method for detecting a protection device. The detection method of the protection device is suitable for a battery system, wherein the battery system comprises a bridge, a main battery module and the protection device, the bridge comprises a first connection terminal and a second connection terminal, the main battery module is electrically coupled with the first connection terminal, and the protection device comprises a detectable unit. The detection method comprises the following steps: judging whether a feedback signal of the detectable unit is detected through the second connecting terminal through the main battery module; and when the feedback signal is detected, judging that the second connecting terminal is connected with the protection device through the main battery module.
In some embodiments, the method for detecting a protection device further includes: when the feedback signal is not detected, the second connection terminal is judged to be not connected with the protection device through the main battery module.
In some embodiments, the method for detecting a protection device further includes: and judging the state of the second connecting terminal according to the feedback signal through the main battery module, wherein when the voltage value of the feedback signal is different from the default voltage value, the second connecting terminal is judged to be in an abnormal state.
Drawings
The foregoing and other objects, features, advantages and embodiments of the present invention will become more apparent upon reading the following description of the drawings in which:
fig. 1 is a block diagram illustrating a battery system according to some embodiments of the present disclosure.
Fig. 2 is a block diagram illustrating a main battery module and a bridge according to some embodiments of the present disclosure.
Fig. 3 is a flowchart illustrating a method of detecting a protection device according to some embodiments of the present disclosure.
Detailed Description
For convenience of explanation, the numbered indices [1] to [5] in the reference numerals used in the present specification and drawings are for convenience of reference to individual elements only, and are not intended to limit the number of the aforementioned elements to a specific number. In the present specification and the drawings, if a reference numeral is not used to designate an index of the reference numeral, the reference numeral refers to any element of the group of elements to which the reference numeral belongs. For example, the object designated by the reference numeral 30[1] is the protection device 30[1], and the object designated by the reference numeral 30 is any protection device not specified among the protection devices 30[1] to 30[2].
Referring to fig. 1, fig. 1 is a block diagram illustrating a battery system 100 according to some embodiments of the present disclosure. In some embodiments, as shown in FIG. 1, the battery system 100 includes a bridge 10, a main battery module 20, two protection devices 30[1] to 30[2], a sub-battery module 40, and a charging device 50.
In some embodiments, the bridge 10 includes a plurality of connection terminals 110 (e.g., five connection terminals 110[1] -110 [5] shown in FIG. 1), and each of the plurality of connection terminals 110 includes a conductive material portion (not shown). Specifically, the conductive material portion of the connection terminal 110 may be implemented by copper, aluminum or other suitable conductive alloys, but the disclosure is not limited thereto. In addition, as shown in fig. 1, the plurality of connection terminals 110 of the bridge 10 may be electrically coupled to each other through wires.
As can be seen from the above description, the bridge 10 can be electrically coupled to the main battery module 20, the protection devices 30[1] to 30[2], the sub-battery module 40 and/or the charging device 50 in fig. 1 through the conductive material portions of the plurality of connection terminals 110. For example, in the embodiment of fig. 1, the connection terminal 110[1] is electrically coupled to the main battery module 20, the connection terminal 110[2] is electrically coupled to the sub-battery module 40, the connection terminal 110[3] is electrically coupled to the charging device 50, the connection terminal 110[4] is connected to the protection device 30[1], and the connection terminal 110[5] is not yet connected. It should be understood that the connection terminal 110[5] may be used to electrically couple another sub-battery module, another charging device, or the protection device 30[2] that has not yet been connected to the bridge 10.
In some embodiments, the protection device 30 is used to protect the connection terminal 110. As shown in fig. 1, when the protection device 30[1] is connected to the connection terminal 110[4] of the bridge 10, the protection device 30[1] can protect the connection terminal 110[4] from foreign substances or liquid intrusion. As also shown in FIG. 1, since the connection terminal 110[5] of the bridge 10 is not connected, the conductive material portion of the connection terminal 110[5] will be exposed to the air. Specifically, the protection device 30 may be implemented by a protection cover, a dust cover, or a cover with waterproof and dustproof functions, but the disclosure is not limited thereto.
In the embodiment of FIG. 1, the two protection devices 30[1] to 30[2] have the same structure, but the disclosure is not limited thereto. For brevity, the protection device 30[1] will be described below as an example. As shown in FIG. 1, the protection device 30[1] includes a detectable unit 310[1], and the detectable unit 310[1] can be used to electrically couple the conductive material portion of the connection terminal 110. Specifically, the detectable unit 310[1] may be implemented by a resistor, a capacitor, a light sensor or other electronic components capable of interacting with the conductive material portion of the connection terminal 110, but the disclosure is not limited thereto.
Referring to fig. 2, fig. 2 is a block diagram illustrating a main battery module 20 and a bridge 10 according to some embodiments of the present disclosure. In some embodiments, the main battery module 20 includes a controller 210 and a main battery pack 220. The controller 210 is electrically coupled between the bridge 10 and the main battery 220. In particular, the controller 210 may be implemented by a Central Processing Unit (CPU), multiprocessor, distributed processing system, application processor, or other circuit or element having data access, data computation, data storage, or the like, but the disclosure is not limited thereto.
In some embodiments, as shown in fig. 2, the controller 210 includes an arithmetic circuit 212 and an analog-to-digital converter (ADC) 214. The adc 214 is electrically coupled between the bridge 10 and the main battery 220, and the operation circuit 212 is electrically coupled to the adc 214. Specifically, the operation circuit 212 may be implemented by a Microprocessor (MCU) or other circuits or elements having data access, data calculation, data storage, data transmission and reception or the like, but the disclosure is not limited thereto.
As can be seen from the above description of fig. 1 and 2, when the protection device 30[1] is connected to the connection terminal 110[4] of the bridge 10, the controller 210 of the main battery module 20, the bridge 10 and the detectable unit 310[1] of the protection device 30[1] form a conductive loop. Accordingly, in some embodiments, when the protection device 30[1] is connected to the connection terminal 110[4] of the bridge 10, the controller 210 is configured to determine the state of the connection terminal 110[4] through the detectable unit 310[ 1]. Further, in some embodiments, the controller 210 is configured to generate a detection signal (not shown). The detection signal is transmitted to the conductive loop and generates a voltage drop when passing through the detectable unit 310[1] to be converted into a feedback signal Sf. In addition, as shown in FIG. 1, a feedback signal Sf is transmitted from the detectable unit 310[1] back to the main battery module 20. In other words, in some embodiments, the controller 210 is configured to receive the feedback signal Sf through the detectable unit 310[ 1].
In some embodiments, the voltage value of the detection signal and the voltage drop are information known to the controller 210, so that the controller 210 can calculate the default voltage value by subtracting the voltage drop from the voltage value of the detection signal. It should be appreciated that the feedback signal Sf received by the controller 210 should have the default voltage value when the connection terminal 110[4] is in a normal state. Conversely, when the connection terminal 110[4] is in an abnormal state, the feedback signal Sf received by the controller 210 should not have the default voltage value.
Accordingly, in some embodiments, as shown in fig. 2, the analog-to-digital converter 214 is configured to perform analog-to-digital conversion on the feedback signal Sf to generate the voltage value Vsf. Then, the operation circuit 212 is used for comparing the voltage value Vsf with the default voltage value and judging the state of the connection terminal 110[4] according to the comparison result of the voltage value Vsf and the default voltage value. Specifically, when the voltage value Vsf is equal to the default voltage value, the arithmetic circuit 212 determines that the connection terminal 110[4] is in a normal state. In contrast, when the voltage value Vsf is not equal to the default voltage value, the arithmetic circuit 212 determines that the connection terminal 110[4] is in an abnormal state. In other words, in some embodiments, the controller 210 is configured to obtain the potential information (i.e. the voltage value Vsf of the feedback signal Sf) through the detectable unit 310[1], and determine the state of the connection terminal 110[4] according to the potential information.
In some embodiments, as shown in fig. 1, when the connection terminal 110[5] of the bridge 10 is not connected to the protection device 30, the connection terminal 110[5] of the bridge 10 will form an open state, such that the controller 210 electrically coupled to the connection terminal 110[5] cannot receive the feedback signal Sf or cannot obtain the potential information. In this case, the controller 210 of the main battery module 20 will determine that the connection terminal 110[5] of the bridge 10 is in an abnormal state.
As is clear from the above description, the connection terminal 110[5] to which the protection device 30 is not connected is determined to be abnormal by the controller 210. Note that the connection terminal 110[4] having the connection protection device 30[1] may also be judged as abnormal by the controller 210. For example, the connection terminal 110[4] may be intruded by foreign matters or liquid due to damage of the protection device 30[1]. In this case, the voltage value Vsf of the feedback signal Sf is not equal to the default voltage value, so that the connection terminal 110[4] is judged as abnormal by the controller 210.
It should be understood that the battery system 100 depicted in fig. 1 is merely an example, and is not intended to limit the present disclosure. For example, in some embodiments, the sub-battery module 40 and the charging device 50 may be removed from the bridge 10, the protection device 30[2] may be connected to the connection terminal 110[5], and two additional protection devices 30 (different from the protection devices 30[1] and 30[2 ]) may be provided to connect the connection terminals 110[2] and 110[3]. In other words, in some embodiments, the battery system of the present disclosure may include a bridge 10, a main battery module 20, and at least one protection device 30.
Referring to fig. 3, fig. 3 is a flowchart illustrating a method 300 for detecting a protection device according to some embodiments of the present disclosure. In some embodiments, the method 300 for detecting a protection device includes steps S301-S304. For clarity and convenience of description, the detection method 300 of the protection device will be described below with respect to the battery system 100 of fig. 1 and 2.
In step S301, the controller 210 of the main battery module 20 determines whether the feedback signal Sf of the detectable unit 310 is detected through the connection terminal 110 of the bridge 10.
In some embodiments, as shown in fig. 1 and 2, when the protection device 30[1] is connected to the connection terminal 110[4], the controller 210 can detect the feedback signal Sf of the detectable unit 310[1] to proceed to step S302. In step S302, when the feedback signal Sf is detected through the connection terminal 110[4], the controller 210 determines that the connection terminal 110[4] is connected to the protection device 30[1].
In some embodiments, as shown in fig. 1 and 2, when the connection terminal 110[5] is not connected to the protection device 30, the controller 210 will detect no feedback signal Sf because the connection terminal 110[5] forms an open state, so as to proceed to step S303. In step S303, when the feedback signal Sf is not detected through the connection terminal 110[5], the controller 210 determines that the connection terminal 110[5] is not connected to the protection device 30.
In some embodiments, when the controller 210 determines that the connection terminal 110[4] is connected to the protection device 30[1], the protection device detection method 300 further performs step S304. In step S304, the controller 210 determines the state of the connection terminal 110[4] according to the feedback signal Sf. For example, the controller 210 may determine that the connection terminal 110[4] is in a normal or abnormal state according to the comparison result of the voltage value Vsf of the feedback signal Sf and the default voltage value.
The method or steps mentioned in this disclosure may be modified in order to follow, or even be performed concurrently or with partial concurrence, or additional steps may be required, unless otherwise specifically stated, the detection method 300 of the protection device shown in fig. 3 is merely illustrative and is not intended to limit the disclosure. For example, in some embodiments, after the controller 210 determines that the connection terminal 110[5] is not connected to the protection device 30 (i.e., after the step S303 is performed), the controller 210 may also prohibit the main battery module 20, the sub-battery module 40, and/or the charging device 50 from performing the charge/discharge operation. In general, during the charge/discharge operation of the main battery module 20, the sub-battery module 40, and/or the charging device 50, the exposed conductive material portion of the connection terminal 110[5] may be exposed to foreign substances or liquids to cause abnormal phenomena such as electrolysis or short circuits, which may further cause the battery system 100 to be damaged. With the configuration of the foregoing embodiment, the battery system 100 will be protected from damage by electrolysis or short-circuiting of the connection terminals 110[5 ].
In some embodiments, after the controller 210 determines that the connection terminal 110[4] is in an abnormal state (i.e., after the step S304 is performed), the controller 210 may also prohibit the main battery module 20, the sub-battery module 40, and/or the charging device 50 from performing the charge/discharge operation. In some cases, even if the connection terminal 110[4] is connected to the protection device 30[1], the connection terminal 110[4] may be intruded by foreign substances or liquid due to the damage of the protection device 30[1], and further an abnormal phenomenon such as electrolysis or short circuit may occur during the charge/discharge operation of the battery system 100. With the configuration of the foregoing embodiment, the battery system 100 will be protected from damage by electrolysis or short-circuiting of the connection terminal 110[4 ].
Further, in some embodiments, the controller 210 will perform the charge/discharge operation of the battery system 100 with all the connection terminals 110 of the bridge 10 in a normal state to prevent the battery system 100 from being damaged.
In summary, the battery system and the detection method of the protection device of the present disclosure determine whether the connection terminal is abnormal through the detectable unit on the protection device. By confirming that the connection terminal is normal to charge/discharge the battery, the present disclosure can reduce the occurrence of damage to the battery system due to abnormality of the connection terminal, thereby improving the stability and safety of the battery system.
Although the present invention has been described with reference to the above embodiments, it should be understood that the invention is not limited thereto, but rather, it should be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
[ symbolic description ]
10 bridge connector
20 main battery module
30 protective device
40 sub-battery module
50 charging device
100 Battery System
110 connecting terminal
210 controller
212 arithmetic circuit
214 analog-to-digital converter
220 main battery pack
300 detection method of protection device
310 detectable unit
S301, S302, S303, S304 step
Sf feedback signal
Vsf, voltage value.
Claims (10)
1. A battery system, comprising:
a bridge including a first connection terminal and a second connection terminal;
the main battery module is electrically coupled with the first connecting terminal and comprises a controller; and
the protection device comprises a detectable unit, wherein when the protection device is connected with the second connection terminal, the controller judges the state of the second connection terminal through the detectable unit.
2. The battery system of claim 1, wherein the bridge further comprises a third connection terminal, and the third connection terminal is configured to electrically couple to the sub-battery module.
3. The battery system of claim 1, wherein the controller obtains potential information via the detectable unit and determines the state of the second connection terminal based on the potential information.
4. The battery system of claim 3, wherein the controller cannot obtain the potential information when the protection device is not connected to the second connection terminal, and further determines that the second connection terminal is in an abnormal state.
5. The battery system of claim 1, wherein the detectable element is a resistor, a capacitor, or a light sensor.
6. The battery system of claim 1, wherein the controller comprises:
the analog-digital converter is used for receiving a feedback signal through the detectable unit and performing analog-digital conversion on the feedback signal to generate a voltage value; and
the operation circuit is coupled to the analog-digital converter, is used for comparing the voltage value with a default voltage value, and is used for judging the state of the second connection terminal according to the comparison result of the voltage value and the default voltage value.
7. The battery system of claim 1, wherein the bridge further comprises a fourth connection terminal, and the fourth connection terminal is configured to electrically couple to a charging device.
8. The detection method of a protective device, suitable for the battery system, wherein the battery system includes the bridge, main battery module and protective device, the bridge includes the first connecting terminal and second connecting terminal, the main battery module is electrically coupled to the first connecting terminal, the protective device includes the detectable unit, characterized by that, the detection method includes:
judging whether a feedback signal of the detectable unit is detected through the second connecting terminal through the main battery module; and
when the feedback signal is detected, the second connection terminal is judged to be connected with the protection device through the main battery module.
9. The method of claim 8, further comprising:
when the feedback signal is not detected, the second connection terminal is judged not to be connected with the protection device through the main battery module.
10. The method of claim 8, further comprising:
and judging the state of the second connecting terminal according to the feedback signal through the main battery module, wherein when the voltage value of the feedback signal is different from the default voltage value, the second connecting terminal is judged to be in an abnormal state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211119817.1A CN117748630A (en) | 2022-09-14 | 2022-09-14 | Battery system and detection method of protection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211119817.1A CN117748630A (en) | 2022-09-14 | 2022-09-14 | Battery system and detection method of protection device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117748630A true CN117748630A (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211119817.1A Pending CN117748630A (en) | 2022-09-14 | 2022-09-14 | Battery system and detection method of protection device thereof |
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| Country | Link |
|---|---|
| CN (1) | CN117748630A (en) |
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2022
- 2022-09-14 CN CN202211119817.1A patent/CN117748630A/en active Pending
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