CN218037225U - Power consumption detection equipment and detection system of lithium battery BMS - Google Patents
Power consumption detection equipment and detection system of lithium battery BMS Download PDFInfo
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- CN218037225U CN218037225U CN202221653048.9U CN202221653048U CN218037225U CN 218037225 U CN218037225 U CN 218037225U CN 202221653048 U CN202221653048 U CN 202221653048U CN 218037225 U CN218037225 U CN 218037225U
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- Prior art keywords
- lithium battery
- power supply
- electrically connected
- battery bms
- thimble
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 73
- 238000001514 detection method Methods 0.000 title claims abstract description 53
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000005070 sampling Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a power consumption detection device and a detection system thereof of a lithium battery BMS, wherein the device comprises a first linear power supply, a current detection module and four thimbles; the lithium battery BMS comprises a second linear power supply and a load; one end of the first thimble is electrically connected with the input end of the current detection module, and the other end of the first thimble is electrically connected with the positive electrode end of the lithium battery BMS; the output end of the current detection module is electrically connected with the input end of the first linear power supply; one end of the second thimble is electrically connected with an enabling end of the lithium battery BMS, and the other end of the second thimble is electrically connected with a grounding end of the first linear power supply; one end of the third thimble is electrically connected with the output end of the first linear power supply, and the other end of the third thimble is electrically connected with a load of the lithium battery BMS; one end of the fourth thimble is electrically connected with the grounding end of the first linear power supply, and the other end of the fourth thimble is electrically connected with the negative electrode end of the lithium battery BMS. The current detection is completed through a linear power supply of the power consumption detection equipment, and nondestructive and rapid automatic detection is realized.
Description
Technical Field
The utility model relates to a lithium cell power consumption test field, in particular to lithium cell BMS's consumption check out test set and detecting system thereof.
Background
The lithium battery pack mainly comprises an electric core, a support, a nickel sheet, a BMS (battery management system) and the like, and the BMS is assembled by live-line operation, so that the damage is easily caused. It is necessary to test the power consumption of the BMS after the lithium battery pack assembly is completed. BMS power consumption is microampere level, and ordinary hall ampere meter can't detect this little electric current, can only test the ampere meter cluster that the measuring accuracy is uA level in the circuit, and the operation of establishing ties is very troublesome in the production line like this, specifically need to break off the positive terminal of circuit, concatenates the ampere meter, welds the positive terminal again after the test is accomplished, can't realize automatic detection circuitry's electric current and power consumption.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is in order to overcome the loaded down with trivial details defect of BMS consumption test among the prior art, provide a lithium cell BMS's consumption check out test set and detecting system thereof.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
in a first aspect, a power consumption detecting apparatus of a lithium battery BMS is provided, which includes: the current detection module is connected with the first linear power supply and the second linear power supply; the lithium battery BMS includes a second linear power supply and a load;
one end of the first thimble is electrically connected with the input end of the current detection module, and the other end of the first thimble is electrically connected with the positive electrode end of the lithium battery BMS;
the output end of the current detection module is electrically connected with the input end of the first linear power supply;
one end of the second thimble is electrically connected with an enabling end of the second linear power supply, and the other end of the second thimble is electrically connected with a grounding end of the first linear power supply;
one end of the third thimble is electrically connected with the output end of the first linear power supply, and the other end of the third thimble is electrically connected with a load of the lithium battery BMS;
one end of the fourth thimble is electrically connected with the grounding end of the first linear power supply, and the other end of the fourth thimble is electrically connected with the negative end of the lithium battery BMS;
when the power consumption detection equipment is connected to the lithium battery BMS, the first thimble, the third thimble and the fourth thimble are used for enabling the first linear power supply to replace the second linear power supply, and the second thimble is used for enabling the second linear power supply to be invalid.
Preferably, the first linear power supply is a buck power supply.
Preferably, the first linear power supply has an input voltage value of 48V and an output voltage value of 12V.
Preferably, the power consumption detection device further comprises a display module;
the display module is electrically connected with the current detection module and is used for displaying the current reading of the current detection module.
Preferably, the display module is a computer display screen.
Preferably, the material of the thimble is copper.
Preferably, the diameter of the thimble is 1.5-2.5 mm.
In a second aspect, a power consumption detection system of a lithium battery BMS is provided, which includes the above lithium battery BMS and a power consumption detection device of the above lithium battery BMS;
the positive terminal of the lithium battery BMS is electrically connected with the input terminal of the second linear power supply; a ground terminal of the second linear power supply is electrically connected with a negative terminal of the lithium battery BMS;
an output terminal of the second linear power supply is electrically connected to a negative terminal of the lithium battery BMS through the load.
Preferably, the power consumption detection system further comprises a power supply; the power supply is electrically connected with the lithium battery BMS.
The utility model discloses an actively advance the effect and lie in: the utility model provides a can be under the prerequisite that need not to break off former BMS circuit, thereby carry out the consumption check out test set of current sampling through the test point in the circuit of outside thimble direct contact lithium cell BMS, can realize harmless and fast automated inspection, need not move the flatiron and can accomplish the test, provide more convenient lithium cell BMS consumption detection for producing the line.
Drawings
Fig. 1 is the utility model discloses embodiment 1's lithium battery BMS's consumption check out test set's module schematic diagram.
Detailed Description
Example 1
The embodiment provides a power consumption detection apparatus of a lithium battery BMS, as shown in fig. 1, including: the first linear power supply 12, the current detection module 13, a first thimble 21, a second thimble 22, a third thimble 23 and a fourth thimble 24; the lithium battery BMS2 includes a second linear power supply 14 and a load 15; one end of the first thimble 21 is electrically connected with the input end of the current detection module 13, and the other end of the first thimble is electrically connected with the positive electrode end of the lithium battery BMS 2;
as used herein, the first linear power source 12 and the second linear power source 14 are both buck power sources, and when the input voltage of the first linear power source 12 is 48V, the output voltage is 12V, and the second linear power source 14 fails because the enable terminal is grounded. Before the power consumption detection device is not connected, when the input voltage value of the second linear power supply 14 is 48V, the output voltage value is also 12V.
The output end of the current detection module 13 is electrically connected with the input end of the first linear power supply 12;
in specific implementation, the accuracy requirement of the current detection module 13 is uA level.
The power consumption detection device 1 further comprises a display module 11; the display module 11 is electrically connected with the current detection module 13 and is used for displaying the current reading of the current detection module 13, and the reading precision also reaches the uA level.
In specific implementation, the data of the current detection module 13 is transmitted to the display module 11 through the design of interfaces such as a USB, and the display module 11 may be a computer display screen, and is directly connected to a computer to calculate the power consumption.
One end of the second thimble 22 is electrically connected to an enable terminal of the lithium battery BMS2, and the other end is electrically connected to a ground terminal of the first linear power supply 12;
one end of the third thimble 23 is electrically connected to the output end of the first linear power supply 12, and the other end is electrically connected to the load 15 of the lithium battery BMS 2;
one end of the fourth thimble 24 is electrically connected to the ground terminal of the first linear power supply 12, and the other end is electrically connected to the negative terminal of the lithium battery BMS 2.
The principle of the utility model lies in that the circuit that possesses the same linear power supply with lithium battery BMS through external one to establish ties into current detection module in external circuit. In actual operation, the linear power supply of the lithium battery BMS is failed by grounding the enabling end, so that current flows into an external test circuit, and then a complete path is formed by the load flowing through a circuit to be tested.
This embodiment provides can be under the prerequisite that need not to break off lithium cell BMS, thereby carry out the consumption check out test set of current sampling through outside thimble direct contact lithium cell BMS's circuit that awaits measuring, through the butt joint operation of pressfitting tool realization thimble and test point, with the circuit access that awaits measuring in the new circuit that has current check out test set, realize automatic detection consumption.
Example 2
The present embodiment provides a power consumption detection system of a lithium battery BMS, which includes the above-described lithium battery BMS2 and the above-described power consumption detection apparatus 1 of the lithium battery BMS. The power consumption detection system further comprises a power supply 3; the power supply 3 is electrically connected to the lithium battery BMS 2; the power supply 3 is used to supply power to the lithium battery BMS 2. The lithium battery BMS2 includes: a first test point 31, a second test point 32, a third test point 33, a fourth test point 34, a second linear power supply 14 and a load 15;
the power consumption detection equipment realizes the butting operation of the ejector pins and the test points in a pressing jig mode, so that the diameter of the ejector pins is reasonably set according to the distance between the test points of the lithium battery BMS2 circuit board to ensure that the short circuit situation cannot occur, the proper diameter is 1.5-2.5 mm, the optimized diameter is 2 mm, the material of the power consumption detection equipment is the same as that of the test points, and the power consumption detection equipment is made of copper.
The first test point 31 is an access point of the first thimble 21; the first test point 31 is electrically connected to the positive terminal of the lithium battery BMS2 and the input terminal of the second linear power supply 14, respectively; a ground terminal of the second linear power supply 14 is electrically connected to a negative terminal of the lithium battery BMS 2; the second test point 32 is an access point of the second thimble 22; the second test point 32 is electrically connected to an enable terminal of the second linear power supply 14 of the lithium battery BMS 2; the third test point 33 is an access point of the third thimble 23; the third test point 33 is electrically connected to the negative terminal of the lithium battery BMS2 through the load 15; the third test point 33 is also electrically connected to the output terminal of the second linear power supply 14; the fourth test point 34 is an access point of the fourth thimble 24; the fourth test point 34 is also electrically connected to a negative terminal of the lithium battery BMS 2.
This embodiment provides can be under the prerequisite that need not to break off lithium battery BMS, thereby carry out the consumption detecting system of current sampling through outside thimble direct contact lithium battery BMS's circuit that awaits measuring, through the butt joint operation of pressfitting tool realization thimble and test point, with the circuit access that awaits measuring in the new circuit that has current detection equipment, realize automatic detection consumption.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (9)
1. A power consumption detecting apparatus of a lithium battery BMS, comprising: the current detection module is connected with the first linear power supply and the second linear power supply; the lithium battery BMS includes a second linear power supply and a load;
one end of the first thimble is electrically connected with the input end of the current detection module, and the other end of the first thimble is electrically connected with the positive electrode end of the lithium battery BMS;
the output end of the current detection module is electrically connected with the input end of the first linear power supply;
one end of the second thimble is electrically connected with the enabling end of the second linear power supply, and the other end of the second thimble is electrically connected with the grounding end of the first linear power supply;
one end of the third thimble is electrically connected with the output end of the first linear power supply, and the other end of the third thimble is electrically connected with a load of the lithium battery BMS;
one end of the fourth thimble is electrically connected with the grounding end of the first linear power supply, and the other end of the fourth thimble is electrically connected with the negative end of the lithium battery BMS;
when the power consumption detection equipment is connected to the lithium battery BMS, the first ejector pin, the third ejector pin and the fourth ejector pin are used for enabling the first linear power supply to replace the second linear power supply, and the second ejector pin is used for enabling the second linear power supply to be invalid.
2. The power consumption detection apparatus of a lithium battery BMS according to claim 1, wherein the first linear power supply is a step-down power supply.
3. The power consumption detecting apparatus of the lithium battery BMS according to claim 2, wherein the first linear power input voltage value is 48V, and the output voltage value is 12V.
4. The power consumption detecting device of a lithium battery BMS according to claim 1, wherein the power consumption detecting device further comprises a display module;
the display module is electrically connected with the current detection module and is used for displaying the current reading of the current detection module.
5. The power consumption detecting apparatus of the lithium battery BMS of claim 4, wherein the display module is a computer display screen.
6. The power consumption detecting apparatus of the lithium battery BMS according to claim 1, wherein the needle is made of copper.
7. The power consumption detecting apparatus of the lithium battery BMS according to claim 6, wherein the diameter of the ejector pin is 1.5 to 2.5 mm.
8. A power consumption sensing system of a lithium battery BMS, comprising the lithium battery BMS of claim 1 and the power consumption sensing device of the lithium battery BMS according to any one of claims 1 to 7;
the positive terminal of the lithium battery BMS is electrically connected with the input terminal of the second linear power supply; a ground terminal of the second linear power supply is electrically connected with a negative terminal of the lithium battery BMS;
the output terminal of the second linear power supply is electrically connected to the negative terminal of the lithium battery BMS through the load.
9. The power consumption detection system of the lithium battery BMS according to claim 8, wherein the power consumption detection system further comprises a power supply; the power supply is electrically connected with the lithium battery BMS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221653048.9U CN218037225U (en) | 2022-06-28 | 2022-06-28 | Power consumption detection equipment and detection system of lithium battery BMS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221653048.9U CN218037225U (en) | 2022-06-28 | 2022-06-28 | Power consumption detection equipment and detection system of lithium battery BMS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218037225U true CN218037225U (en) | 2022-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221653048.9U Active CN218037225U (en) | 2022-06-28 | 2022-06-28 | Power consumption detection equipment and detection system of lithium battery BMS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218037225U (en) |
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2022
- 2022-06-28 CN CN202221653048.9U patent/CN218037225U/en active Active
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