CN218240372U - BMS line sequence detection device - Google Patents
BMS line sequence detection device Download PDFInfo
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- CN218240372U CN218240372U CN202222183708.8U CN202222183708U CN218240372U CN 218240372 U CN218240372 U CN 218240372U CN 202222183708 U CN202222183708 U CN 202222183708U CN 218240372 U CN218240372 U CN 218240372U
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Abstract
The utility model relates to a BMS line preface detects technical field, specifically discloses a BMS line preface detection device, BMS line preface detection device includes line preface linking module, selection switch module and line preface detection control module, the output of line preface linking module connects the input of selection switch module, the output of selection switch module connects the input of line preface detection control module; the line sequence connecting module comprises a connecting terminal and a multi-route sequence connecting circuit, the input end of each line sequence connecting circuit is connected with the output end of the connecting terminal, and the output end of any line sequence connecting circuit in the multi-route sequence connecting circuit is connected with the input end of the selection switch module; the utility model discloses an access of selection switch module decision electricity core voltage acquisition pencil to judge the state of first pilot lamp and second pilot lamp, can obtain the line preface whether correct testing result, compare current line preface detection device, have low cost and be applicable to the advantage of all kinds of products.
Description
Technical Field
The utility model relates to a BMS line preface detects technical field, especially relates to a BMS line preface detection device.
Background
In recent years, BMS's development is very rapid, and the increase of battery cluster number is also more and more fast, and the electric core voltage acquisition pencil of many clusters is also very important in BMS, and the electric core voltage acquisition pencil in present production need rely on the accurate of equipment to detect, but can only rely on tools such as the engineer uses the universal meter to detect when the pilot run of initial stage, greatly reduced work efficiency.
The current methods for detecting the line sequence are roughly divided into the following two methods: the LED display detection method comprises the steps that voltages at the upper and lower ends of a battery are connected, and an LED is lightened after passing through a series of circuits, so that whether the line sequence is correct or not is judged by human eyes; the circuit of the LED display detection method is generally simpler and has high repeatability, a large number of repeated circuits exist, and more components are wasted; the other is a voltage comparison detection method, which uses a voltage comparator to determine whether the line sequence is correct by detecting the voltage of two electrodes, so as to drive the next-stage circuit such as an LED or a buzzer to display the state.
SUMMERY OF THE UTILITY MODEL
To the problem that BMS line preface detection cost that the aforesaid exists, the utility model provides a BMS line preface detection device decides the access of electricity core voltage acquisition pencil through the selector switch module to judge the state of first pilot lamp and second pilot lamp, can obtain whether correct testing result of line preface, compare current line preface detection device, have low cost and be applicable to the advantage of all kinds of products.
In order to solve the technical problem, the utility model provides a concrete scheme as follows:
the BMS line sequence detection device comprises a line sequence connection module, a selection switch module and a line sequence detection control module, wherein the output end of the line sequence connection module is connected with the input end of the selection switch module, and the output end of the selection switch module is connected with the input end of the line sequence detection control module;
the line sequence connecting module comprises a connecting terminal and a multi-line sequence connecting circuit, the input end of each line of the line sequence connecting circuit is connected with the output end of the connecting terminal, and the output end of any line sequence connecting circuit in the multi-line sequence connecting circuit is connected with the input end of the selection switch module;
the line sequence detection control module comprises a first switch detection module and a second switch detection module, and the input end of the first switch detection module and the input end of the second switch detection module are both connected with the output end of the selection switch module;
the first switch detection module is connected with a first indicator light, and the second switch detection module is connected with a second indicator light.
Optionally, first switch detection module includes first MOS pipe, second switch detection module includes the second MOS pipe, and the MOS pipe is voltage-controlled original paper, as long as pressurize to the required voltage of MOS pipe and can make it switch on, in general electronic circuit, the MOS pipe is used for switch circuit usually, in this application, be applied to the switch detection module with the MOS pipe, be favorable to detecting whether the line preface is correct to and be convenient for the pilot lamp to instruct the testing result, make the testing personnel can learn the testing result fast.
Optionally, the first switch detection module further includes a first voltage dividing circuit, an input end of the first voltage dividing circuit is connected to an output end of the selection switch module, an output end of the first voltage dividing circuit is connected to the first MOS transistor, and the first voltage dividing circuit is configured to change an output voltage, so that the first MOS transistor obtains a suitable voltage, and performs a voltage division protection function on the first MOS transistor.
Optionally, the first voltage-dividing circuit includes a first voltage-dividing resistor and a second voltage-dividing resistor, the first voltage-dividing resistor is connected to the second voltage-dividing resistor, and a G electrode of the first MOS transistor is connected between the first voltage-dividing resistor and the second voltage-dividing resistor;
the two ends of the first indicator lamp are respectively connected with the D poles of the first voltage dividing resistor and the first MOS tube, and the resistance values of the first voltage dividing resistor and the second voltage dividing resistor are changed to enable the first indicator lamp to have an actually required voltage dividing effect, so that the first MOS tube obtains a proper voltage and has a voltage dividing protection effect on the first MOS tube.
Optionally, the first switch detection module further includes a first protection diode, the first protection diode is connected to the S-pole of the first MOS transistor, and the first protection diode is arranged to prevent reverse voltage from damaging the first MOS transistor, so as to protect the first MOS transistor.
Optionally, the second switch detection module further includes a second voltage-dividing circuit, an input end of the second voltage-dividing circuit is connected to an output end of the selection switch module, an output end of the second voltage-dividing circuit is connected to the second MOS transistor, and the second voltage-dividing circuit is configured to change an output voltage, so that the second MOS transistor obtains a suitable voltage, and performs a voltage-dividing protection function on the second MOS transistor.
Optionally, the second voltage division circuit includes a third voltage division resistor and a fourth voltage division resistor, the third voltage division resistor is connected to the fourth voltage division resistor, and a G electrode of the second MOS transistor is connected between the third voltage division resistor and the fourth voltage division resistor;
the both ends of second pilot lamp are the D utmost point of line preface connection module and second MOS pipe respectively, through changing the resistance of third divider resistance and fourth divider resistance, make it play actual required partial pressure effect to the second MOS pipe obtains suitable voltage, plays partial pressure guard action to the second MOS pipe.
Optionally, the second switch detection module further includes a second protection diode, the second protection diode is connected to the S pole of the second MOS transistor, and the second protection diode is arranged to prevent the reverse voltage from damaging the second MOS transistor, so as to protect the second MOS transistor.
Optionally, a current-limiting resistor is further disposed between the second indicator light and the line sequence connection module, and the current-limiting resistor can reduce current flowing through the second indicator light, prevent damage to the second indicator light, and protect the second indicator light.
Optionally, a fuse is further arranged between the selection switch module and the line sequence detection control module, and when the current exceeds a specified value, the fuse fuses the melt by using heat generated by the fuse, so that the circuit is disconnected, and the circuit is protected.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a pair of BMS line preface detection device decides the access of electricity core voltage acquisition pencil through the selector switch module to judge the state of first pilot lamp and second pilot lamp, can obtain whether correct testing result of line preface, compare current line preface detection device, have low cost and be applicable to the advantage of all kinds of products.
Drawings
Fig. 1 is a schematic block diagram of a BMS line sequence detecting device provided in an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a BMS line sequence detecting device provided in an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a line sequence detection control module provided in an embodiment of the present invention.
Detailed Description
In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are some, but not all embodiments of the invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
For example, the BMS line sequence detecting device comprises a line sequence connecting module, a selection switch module and a line sequence detection control module, wherein the output end of the line sequence connecting module is connected with the input end of the selection switch module, and the output end of the selection switch module is connected with the input end of the line sequence detection control module; the line sequence connecting module comprises a connecting terminal and a multi-line sequence connecting circuit, the input end of each line of the line sequence connecting circuit is connected with the output end of the connecting terminal, and the output end of any line sequence connecting circuit in the multi-line sequence connecting circuit is connected with the input end of the selection switch module; the line sequence detection control module comprises a first switch detection module and a second switch detection module, and the input end of the first switch detection module and the input end of the second switch detection module are both connected with the output end of the selection switch module; the first switch detection module is connected with a first indicator light, and the second switch detection module is connected with a second indicator light.
The utility model provides a pair of BMS line preface detection device decides the access of electricity core voltage acquisition pencil through the selector switch module to judge the state of first pilot lamp and second pilot lamp, can obtain whether exact testing result of line preface, compare current line preface detection device, have low cost and be applicable to the advantage of all kinds of products.
The first embodiment is as follows:
as shown in fig. 1-3, a BMS thread sequence detecting device for detecting a thread sequence of a plurality of strings of cell voltage collecting wire harnesses in a BMS includes a thread sequence connecting module, a selection switch module and a thread sequence detection control module, wherein an output end of the thread sequence connecting module is connected to an input end of the selection switch module, an output end of the selection switch module is connected to an input end of the thread sequence detection control module, the thread sequence connecting module is used for being connected to the plurality of strings of cell voltage collecting wire harnesses, the selection switch module is used for determining the access of the cell voltage collecting thread sequences, and the thread sequence detection control module is used for detecting whether the thread sequences are correct and controlling the display of detection results.
Specifically, the line sequence connection module comprises a connection terminal and a multi-line sequence connection circuit, the input end of each line sequence connection circuit is connected with the output end of the connection terminal, the connection terminal is used for being connected with the multi-line cell voltage acquisition wire harnesses, the multi-line cell voltage acquisition wire harnesses are respectively connected with the corresponding line sequence connection circuits, and the output end of any line sequence connection circuit in the multi-line sequence connection circuit is connected with the input end of the selection switch module.
In this example, the line sequence connection module includes six line sequence connection circuits in total, an input end of each line sequence connection circuit is connected with an output end of the connection terminal, an output end of any line sequence connection circuit in the six line sequence connection circuits is connected with an input end of the selection switch module, that is, the selection switch module determines access of one of the line cell voltage acquisition wire harnesses, and then the line sequence detection control module is used for detecting whether the line sequence is correct or not and controlling display of a detection result.
The line sequence detection control module comprises a first switch detection module and a second switch detection module, and the input end of the first switch detection module and the input end of the second switch detection module are both connected with the output end of the selection switch module; first switch detection module is connected with first pilot lamp, and second switch detection module is connected with the second pilot lamp, and first pilot lamp is D3, and the second pilot lamp is D4.
Set up first pilot lamp D3 into red emitting diode, set up second pilot lamp D4 into green emitting diode, this BMS line sequence detection device's judged result sets up to, along with the switching access of selection switch module to each way electric core voltage acquisition pencil, when the line sequence of access is correct, green emitting diode lights, and red emitting diode extinguishes, when the line sequence of access is wrong, green emitting diode extinguishes or green emitting diode lights with red emitting diode simultaneously.
For the turning-on or turning-off of the first indicator light D3 and the second indicator light D4, the on-off of the first switch detection module and the second switch detection module can be controlled, namely when the accessed line sequence is correct, the first switch detection module is in an off state, and the second switch detection module is in an on state, so that the red light-emitting diode is turned off, and the green light-emitting diode is turned on; and when the first switch detection module and the second switch detection module are in an off state or an on state, the accessed line sequence is wrong.
In this example, the first switch detection module includes a first MOS transistor, the second switch detection module includes a second MOS transistor, refer to fig. 2, the first MOS transistor is Q1, the second MOS transistor is Q2, the MOS transistors are voltage-controlled elements, the MOS transistors can be turned on as long as the voltage required by the MOS transistors is applied, in a general electronic circuit, the MOS transistors are generally used in a switch circuit, in this application, the first MOS transistor Q1 is applied to the first switch detection module, the second MOS transistor Q2 is applied to the second switch detection module, it is beneficial to detect whether the line sequence is correct, and it is convenient for the first indicator light D3 and the second indicator light D4 to indicate the detection result, so that the detection personnel can quickly know the detection result.
The second embodiment:
as shown in fig. 3, the first switch detection module further includes a first voltage dividing circuit, an input end of the first voltage dividing circuit is connected to an output end of the selection switch module, an output end of the first voltage dividing circuit is connected to the first MOS transistor Q1, and the first voltage dividing circuit is configured to change an output voltage, so that the first MOS transistor Q1 obtains a suitable voltage, and performs a voltage dividing protection function on the first MOS transistor Q1.
Specifically, the first voltage division circuit includes a first voltage division resistor and a second voltage division resistor, the first voltage division resistor is R14, the second voltage division resistor is R15, the first voltage division resistor R14 is connected to the second voltage division resistor R15, and the G electrode of the first MOS transistor Q1 is connected between the first voltage division resistor R14 and the second voltage division resistor R15; the both ends of first pilot lamp D3 are connected the D utmost point of first divider resistance R14 and first MOS pipe Q1 respectively, through changing first divider resistance R14 and second divider resistance R15's resistance, make it play actual required partial pressure effect to in first MOS pipe Q1 obtains suitable voltage, play the partial pressure guard action to first MOS pipe Q1.
In this example, the first switch detection module further includes a first protection diode D1, the first protection diode D1 is connected to the S-pole of the first MOS transistor Q1, and the first protection diode D1 is configured to prevent the reverse voltage from damaging the first MOS transistor Q1, so as to protect the first MOS transistor Q1.
Similarly, the second switch detection module further includes a second voltage-dividing circuit, an input end of the second voltage-dividing circuit is connected to an output end of the selection switch module, an output end of the second voltage-dividing circuit is connected to the second MOS transistor Q2, and the second voltage-dividing circuit is set to change an output voltage, so that the second MOS transistor Q2 obtains a proper voltage, and a voltage-dividing protection effect is performed on the second MOS transistor Q2.
In this example, the second voltage division circuit includes a third voltage division resistor and a fourth voltage division resistor, the third voltage division resistor is R12, the fourth voltage division resistor is R13, the third voltage division resistor R12 is connected to the fourth voltage division resistor R13, and the G electrode of the second MOS transistor Q2 is connected between the third voltage division resistor R12 and the fourth voltage division resistor R13; the both ends of second pilot lamp D4 are the D utmost point of line preface link module and second MOS pipe Q2 respectively, through changing third divider resistance R12 and fourth divider resistance R13's resistance, make it play actual required partial pressure effect to in second MOS pipe Q2 obtains suitable voltage, plays the partial pressure guard action to second MOS pipe Q2.
Specifically, the second switch detection module further comprises a second protection diode, the second protection diode is D2, the second protection diode D2 is connected with the S pole of the second MOS tube Q2, the second protection diode D2 is arranged to prevent reverse voltage from damaging the second MOS tube Q2, and the second MOS tube Q2 is protected.
When specifically detecting, be connected electric core voltage acquisition pencil with connecting terminal, when the line sequence that selection switch module accessed is correct, this moment because the reason of first divider resistance R14 and second divider resistance R15, first MOS pipe Q1's G utmost point voltage is lower, lead to first MOS pipe Q1 can't be closed, first pilot lamp D3 return circuit does not switch on, red emitting diode is for going out the state promptly, and second MOS pipe Q2 is closed, second pilot lamp D4 return circuit switches on, green emitting diode is for the state of lighting promptly, the collection line sequence of surface access this moment is correct.
When the accessed line sequence has errors, two possible error states exist, wherein, the first error state is, for example, the cell voltage acquisition wiring harness B1+ is reversely connected with the B2+, when the selection switch module is accessed to the B1+, the actual selection switch module is accessed to the B2+ because of the wrong wiring, then the first MOS tube Q1 and the second MOS tube Q2 are both conducted, the red light emitting diode and the green light emitting diode are simultaneously lighted, at this time, the wiring harness error of the cell voltage acquisition wiring harness B1+ is explained, and the wiring harness is a wiring harness higher than the cell voltage acquisition wiring harness B1 +; the second error state is, for example, when the cell voltage acquisition harness B-is reversely connected to the B2+, but the selection switch module connects the B1+, the first MOS transistor Q1 and the second MOS transistor Q2 cannot be conducted, and at this time, the red and green light emitting diodes do not emit light, and this state can determine that the cell voltage acquisition harness B-is in a wrong wiring.
Example three:
referring to fig. 2, a current limiting resistor is further disposed between the second indicator light and the line sequence connection module, the current limiting resistor is R16, and the current limiting resistor R16 can reduce the current flowing through the second indicator light D4, prevent the second indicator light D4 from being damaged, and protect the second indicator light D4.
In this example, a fuse is further arranged between the selection switch module and the line sequence detection control module, and when the current exceeds a specified value, the fuse fuses a melt by heat generated by the fuse, so that a circuit is disconnected, and the circuit is protected.
According to the technical scheme of above-mentioned embodiment, the utility model provides a pair of BMS line preface detection device decides the access of electric core voltage acquisition pencil through the selector switch module to judge the state of first pilot lamp and second pilot lamp, can obtain whether correct testing result of line preface, compare current line preface detection device, have low cost and be applicable to the advantage of all kinds of products.
Through the above description of the embodiments, those skilled in the art can clearly understand that the present invention can be implemented by software and necessary general hardware, where the general hardware includes general integrated circuit, general CPU, general memory, general components, etc., and certainly can also be implemented by special hardware including special integrated circuit, special CPU, special memory, special components, etc., but the former is a better implementation mode in many cases. Based on such understanding, the technical solution of the present invention essentially or the portions contributing to the prior art may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a hard disk, or an optical disk of a computer, and includes a plurality of instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The BMS line sequence detection device is characterized by comprising a line sequence connection module, a selection switch module and a line sequence detection control module, wherein the output end of the line sequence connection module is connected with the input end of the selection switch module, and the output end of the selection switch module is connected with the input end of the line sequence detection control module;
the line sequence connecting module comprises a connecting terminal and a multi-route sequence connecting circuit, the input end of each line sequence connecting circuit is connected with the output end of the connecting terminal, and the output end of any line sequence connecting circuit in the multi-route sequence connecting circuit is connected with the input end of the selection switch module;
the line sequence detection control module comprises a first switch detection module and a second switch detection module, and the input end of the first switch detection module and the input end of the second switch detection module are both connected with the output end of the selection switch module;
the first switch detection module is connected with a first indicator light, and the second switch detection module is connected with a second indicator light.
2. The BMS line sequence detection device according to claim 1, wherein the first switch detection module comprises a first MOS transistor, and the second switch detection module comprises a second MOS transistor.
3. The BMS wire sequence detection device according to claim 2, characterized in that said first switch detection module further comprises a first voltage divider circuit, wherein the input terminal of said first voltage divider circuit is connected to the output terminal of the selection switch module, and the output terminal of said first voltage divider circuit is connected to the first MOS transistor.
4. The BMS wire sequence detecting device according to claim 3, wherein the first voltage dividing circuit comprises a first voltage dividing resistor and a second voltage dividing resistor, the first voltage dividing resistor is connected with the second voltage dividing resistor, and the G pole of the first MOS transistor is connected between the first voltage dividing resistor and the second voltage dividing resistor;
and two ends of the first indicator light are respectively connected with the first divider resistor and the D pole of the first MOS tube.
5. The BMS line sequence detecting device of claim 2, wherein the first switch detecting module further comprises a first protection diode connected to the S-pole of the first MOS transistor.
6. The BMS wire sequence detection device according to claim 2, characterized in that said second switch detection module further comprises a second voltage divider, wherein an input terminal of said second voltage divider is connected to an output terminal of the selection switch module, and an output terminal of said second voltage divider is connected to the second MOS transistor.
7. The BMS line sequence detection device according to claim 6, wherein the second voltage dividing circuit comprises a third voltage dividing resistor and a fourth voltage dividing resistor, the third voltage dividing resistor is connected with the fourth voltage dividing resistor, and the G pole of the second MOS transistor is connected between the third voltage dividing resistor and the fourth voltage dividing resistor;
and two ends of the second indicator light are respectively connected with the wire sequence connection module and the D pole of the second MOS tube.
8. The BMS line sequence detection device according to claim 2, wherein the second switch detection module further comprises a second protection diode, and the second protection diode is connected with the S pole of the second MOS transistor.
9. The BMS line sequence detection device of claim 1, wherein a current limiting resistor is further arranged between the second indicator light and the line sequence connection module.
10. The BMS sequencing detection device of claim 1, wherein a fuse is further provided between the selection switch module and the sequencing detection control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222183708.8U CN218240372U (en) | 2022-08-18 | 2022-08-18 | BMS line sequence detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222183708.8U CN218240372U (en) | 2022-08-18 | 2022-08-18 | BMS line sequence detection device |
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| Publication Number | Publication Date |
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| CN218240372U true CN218240372U (en) | 2023-01-06 |
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| CN202222183708.8U Active CN218240372U (en) | 2022-08-18 | 2022-08-18 | BMS line sequence detection device |
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