CN112433163A - Storage battery performance detection table and traffic equipment - Google Patents
Storage battery performance detection table and traffic equipment Download PDFInfo
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- CN112433163A CN112433163A CN202011220368.0A CN202011220368A CN112433163A CN 112433163 A CN112433163 A CN 112433163A CN 202011220368 A CN202011220368 A CN 202011220368A CN 112433163 A CN112433163 A CN 112433163A
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- 238000003860 storage Methods 0.000 title claims abstract description 67
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 230000000087 stabilizing effect Effects 0.000 claims description 44
- 238000007599 discharging Methods 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 14
- 230000006641 stabilisation Effects 0.000 claims description 7
- 238000011105 stabilization Methods 0.000 claims description 7
- 238000011056 performance test Methods 0.000 claims 7
- 230000003068 static effect Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000003892 spreading Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
Abstract
The application provides among battery performance detection platform and the transportation equipment, detect the platform and include that display gauge outfit, first switch, first discharge unit and second discharge unit. The first switch is used for switching the conduction state between the storage battery and the first discharge unit and between the storage battery and the second discharge unit; the display gauge outfit is used for recording a first discharge duration which is equivalent to the static discharge duration of the storage battery when the storage battery is conducted with the first discharge unit; the display gauge head is also used for recording a second discharge duration when the storage battery is conducted with the second discharge unit, and acquiring the capacity of the storage battery according to the second discharge duration, the current value and the voltage value which are matched with the second discharge unit. Switch over the on-state of battery through first switch to can realize different inspection function, can detect each item performance of battery comprehensively through same equipment, thereby overcome prior art's defect.
Description
Technical Field
The application relates to the field of batteries, in particular to a storage battery performance detection table and traffic equipment.
Background
At present, the capacity of the storage battery can not be measured by using a common test tool aiming at the capacity detection of the storage battery, the performance comparison of the storage battery of each manufacturer and the phenomena of substrate vulcanization, capacity attenuation and the like of the storage battery, and the measurement can be carried out only by using a professional large charging and discharging machine, so that the storage battery is inconvenient to carry. In addition, the dynamic electric quantity information of the existing mass-production vehicle type is not actually tested, but only a common multimeter is used for testing the static current and the charging current of the vehicle under the idling condition, but the current in the dynamic use of the whole vehicle cannot be detected, and whether the efficiency of the storage battery and the efficiency of the engine meet the design requirements or not is not clear.
Along with the upgrade of the functions of the whole vehicle, the functions of the control unit modules become more and more huge, the power consumption of the whole vehicle is also increased continuously, and no detection equipment capable of monitoring the power consumption state of the whole vehicle in real time exists at present; the performance requirements of the whole vehicle on the storage battery are continuously improved, and the phenomena of vulcanization, aging and capacity attenuation of the storage battery cannot be directly measured.
Disclosure of Invention
The application aims to provide a storage battery performance detection table and transportation equipment so as to at least partially improve the problems.
In order to achieve the above purpose, the embodiments of the present application employ the following technical solutions:
in a first aspect, an embodiment of the present application provides a battery performance detection platform, where the detection platform includes a display meter, a first switch, a first discharge unit, and a second discharge unit, a fixed end of the first switch is connected to an anode of a battery to be detected, one end of the first discharge unit and one end of the second discharge unit are respectively connected to different selection ends of the first switch, the other end of the first discharge unit and the other end of the second discharge unit are both connected to one pin of the display meter, the other pin of the display meter is connected to a cathode of the battery, and internal load resistance values of the first discharge unit and the second discharge unit are different;
the first switch is used for switching the conducting state between the storage battery and the first discharging unit and between the storage battery and the second discharging unit;
the display gauge outfit is used for recording a first discharging time length when the storage battery is conducted with the first discharging unit;
the display gauge outfit is also used for recording a second discharge duration when the storage battery is conducted with the second discharge unit, and acquiring the capacity of the storage battery according to the second discharge duration, the current value and the voltage value which are matched with the second discharge unit.
Optionally, the first discharge unit includes: the load balancing circuit comprises a first voltage stabilizing controller, a second switch, a third switch, a first load module and a second load module, wherein the first load module comprises at least one first matching resistor, and the second load module comprises second matching resistors with the same number as the first matching resistors;
the input end of the first voltage stabilizing controller is connected with the selection end of the first switch;
one end of each first matching resistor is connected with the adjusting end of the first voltage stabilizing controller, the other end of each first matching resistor is connected to different selecting ends of the second switch, and the fixed end of the second switch is connected to the output end of the first voltage stabilizing controller;
one end of each second matching resistor is connected with the output end of the first voltage stabilizing controller, the other end of each second matching resistor is connected to different selection ends of the third switch, and the fixed end of the third switch is connected to the display meter head;
the selection end of the second switch corresponds to the selection end of the third switch, and when the fixed end of the second switch is connected with one of the selection ends in a closed mode, the fixed end of the third switch is connected with the corresponding selection end in a closed mode.
Optionally, the first discharge unit further includes a first adjustable resistor, one end of the first adjustable resistor is connected to the adjustment end of the first voltage regulator controller, and the other end of the first adjustable resistor is connected to the display gauge outfit.
Optionally, the second discharge unit includes: the fine tuning sub-unit is connected with each group of coarse tuning sub-units in parallel;
one end of each group of coarse tuning subunits is connected with the selection end of the first switch;
the other ends of the fine tuning subunit and each group of coarse tuning subunits are connected to the display gauge head.
Optionally, the coarse tuning subunit includes: the voltage stabilizing and current stabilizing module, the third resistor and the fourth switch;
the two ends of the fourth switch are respectively connected to one end of the voltage and current stabilizing module and one end of the third resistor, the other end of the voltage and current stabilizing module is connected to the selection end of the first switch, and the other end of the third resistor is connected to the display meter head.
Optionally, the voltage and current stabilizing module includes a first current expansion triode, a fourth resistor, a second voltage stabilizing controller, a fifth resistor, and a second adjustable resistor;
an emitter of the first current expansion triode and one end of the fourth resistor are connected to a selection end of the first switch, the other end of the fourth resistor is connected with a base electrode of the first current expansion triode, an input end of the second voltage stabilization controller is connected between the other end of the fourth resistor and the base electrode of the first current expansion triode, and a collector of the first current expansion triode is connected to the fourth switch;
two ends of the fifth resistor are respectively connected to the adjusting end and the output end of the second voltage stabilizing controller; one end of the second adjustable resistor is connected to the adjusting end of the second voltage stabilizing controller, the other end of the second adjustable resistor is connected to the display gauge outfit, and the output end of the second voltage stabilizing controller is connected to the fourth switch.
Optionally, the coarse tuning subunit further includes an indication device, and the indication device is connected in series between the third resistor and the display meter.
Optionally, the fine-tuning subunit includes: the second current-expanding triode, the third voltage-stabilizing controller, the third adjustable resistor, the sixth resistor, the seventh resistor and the eighth resistor;
an emitter of the second current expansion triode and one end of the sixth resistor are connected to a selection end of the first switch, the other end of the sixth resistor is connected with a base electrode of the second current expansion triode, an input end of the third voltage stabilization controller is connected between the other end of the sixth resistor and the base electrode of the second current expansion triode, and a collector of the second current expansion triode is connected to one end of the eighth resistor;
two ends of the seventh resistor are respectively connected to the adjusting end and the output end of the third voltage stabilizing controller; one end of the third adjustable resistor is connected to the adjusting end of the third voltage stabilizing controller, the other end of the third adjustable resistor is connected to the display gauge outfit, and the output end of the third voltage stabilizing controller is connected to one end of the eighth resistor, which is connected with the collector of the second current expansion triode;
the other end of the eighth resistor is connected to the display gauge head.
Optionally, the detection platform further comprises an ECU, the ECU is connected with a battery sensor, the battery sensor is connected in series in a charge-discharge loop of the storage battery, and the battery sensor is mounted on a negative electrode post of the storage battery;
the battery sensor is used for measuring index information of the storage battery and transmitting the index information to the ECU;
the index information comprises the current value, the voltage value and the temperature value of the storage battery.
In a second aspect, the embodiment of the present application provides a transportation device, which includes the battery performance testing platform as described above.
Compared with the prior art, in the storage battery performance detection platform and the traffic equipment provided by the embodiment of the application, the detection platform comprises a display gauge outfit, a first switch, a first discharging unit and a second discharging unit. The first switch is used for switching the conduction state between the storage battery and the first discharge unit and between the storage battery and the second discharge unit; the display gauge outfit is used for recording a first discharge duration which is equivalent to the static discharge duration of the storage battery when the storage battery is conducted with the first discharge unit; the display gauge head is also used for recording a second discharge duration when the storage battery is conducted with the second discharge unit, and acquiring the capacity of the storage battery according to the second discharge duration, the current value and the voltage value which are matched with the second discharge unit. Switch over the on-state of battery through first switch to can realize different inspection function, can detect each item performance of battery comprehensively through same equipment, thereby overcome prior art's defect.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and it will be apparent to those skilled in the art that other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic connection diagram of a battery performance testing platform provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a first discharge unit according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a second discharge unit according to an embodiment of the present disclosure;
fig. 4 is another connection schematic diagram of the battery performance testing platform provided in the embodiment of the present application.
In the figure: 10-a first discharge cell; 101-a first load module; 102-a second load module; 20-a second discharge cell; 21-coarse tuning subunit; 22-fine tuning subunit; 23-a heat removal device; 210-a voltage and current stabilizing module; 30-display header; 40-a storage battery; 50-ECU.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the application, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
At present, the capacity of the storage battery can not be detected by using a common testing tool aiming at the capacity detection of the storage battery, the performance comparison of the storage battery of each manufacturer and the phenomena of substrate vulcanization, capacity attenuation and the like of the storage battery, and the measurement can be carried out only by using a professional large charging and discharging machine, so that the storage battery is inconvenient to carry. Meanwhile, the dynamic electric quantity information of the existing mass-production vehicle type is inconvenient for actual test, and only a common multimeter is used for testing the static current and the charging current under the idling of the vehicle, but the current in the dynamic use of the whole vehicle cannot be detected, and whether the efficiency of the storage battery and the efficiency of the engine meet the design requirements or not is not clear.
In order to overcome the above problems, the embodiment of the application provides a storage battery performance detection table. Referring to fig. 1, fig. 1 is a schematic connection diagram of a battery performance testing platform according to an embodiment of the present disclosure. As shown in fig. 1, the test platform includes a display meter head 30, a first switch K1, a first discharge unit 10 and a second discharge unit 20, a fixed end of the first switch K1 is connected to an anode of a battery 40 to be tested, one end of the first discharge unit 10 and one end of the second discharge unit 20 are respectively connected to different selection ends of the first switch K1, the other end of the first discharge unit 10 and the other end of the second discharge unit 20 are both connected to a pin of the display meter head 30, the other pin of the display meter head 30 is connected to a cathode of the battery 40, and internal load resistance values of the first discharge unit 10 and the second discharge unit 20 are different.
The first switch K1 is used to switch the conduction state between the battery 40 and the first and second discharge cells 10 and 20.
Specifically, when the fixed end of the first switch K1 is in close connection with the selection end connected with the first discharge unit 10, the battery 40 is in conduction with the first discharge unit 10, and the battery 40 is disconnected with the second discharge unit 20; when the fixed end of the first switch K1 is connected to the selection end connected to the second discharge unit 20, the battery 40 is disconnected from the first discharge unit 10, and the battery 40 is connected to the second discharge unit 20.
The display gauge head 30 is used for recording a first discharging time period when the storage battery 40 is conducted with the first discharging unit 10.
The first discharge time period is a discharge duration from the full charge state to the empty state of the battery 40. The first discharge unit 10 is used for simulating the load in the whole device when the traffic device is in a static state. The first discharge time may be equal to a corresponding discharge time period when the transportation device is in a static state.
The display meter head 30 is further configured to record a second discharging time period when the battery 40 is conducted with the second discharging unit 20, and obtain the capacity of the battery 40 according to the second discharging time period and the current value and the voltage value matched with the second discharging unit 20.
The display meter head 30 can acquire the current value, the voltage value, and the sustained discharge time (second discharge time) in the circuit. The capacity of the storage battery 40 can be obtained from the current value, the voltage value, and the second discharge time.
To sum up, in the battery performance detection table provided by the embodiment of the application, the detection table comprises a display gauge outfit, a first switch, a first discharge unit and a second discharge unit. The first switch is used for switching the conduction state between the storage battery and the first discharge unit and between the storage battery and the second discharge unit; the display gauge outfit is used for recording a first discharge duration which is equivalent to the static discharge duration of the storage battery when the storage battery is conducted with the first discharge unit; the display gauge head is also used for recording a second discharge duration when the storage battery is conducted with the second discharge unit, and acquiring the capacity of the storage battery according to the second discharge duration, the current value and the voltage value which are matched with the second discharge unit. Switch over the on-state of battery through first switch to can realize different inspection function, can detect each item performance of battery comprehensively through same equipment, thereby overcome prior art's defect.
On the basis of fig. 1, regarding the structure of the first discharge unit 10, the embodiment of the present application further provides a possible implementation manner, please refer to fig. 2, in which the first discharge unit 10 includes: the load circuit comprises a first voltage stabilization controller U1, a second switch K2, a third switch K3, a first load module 101 and a second load module 102, wherein the first load module 101 comprises at least one first matching resistor R1, and the second load module 102 comprises the same number of second matching resistors R2 as the first matching resistors R1.
It should be noted that the resistance of each first matching resistor R1 may be different, and the resistance of the second matching resistor R2 may be different.
An input terminal (VI) of the first regulator controller U1 is connected to a selection terminal of the first switch K1.
One end of each first matching resistor R1 is connected to the adjusting terminal (ADJ) of the first voltage regulator U1, the other end of each first matching resistor R1 is connected to different selecting terminals of the second switch K2, and the fixed end of the second switch K2 is connected to the output terminal (VO) of the first voltage regulator U1.
One end of each second matching resistor R2 is connected to the output end of the first voltage regulator controller U1, the other end of each second matching resistor R2 is connected to a different selection end of the third switch K3, and the fixed end of the third switch K3 is connected to the display head 30.
The selection terminals of the second switch K2 and the third switch K3 correspond to each other, and when the fixed terminal of the second switch K2 is connected to one of the selection terminals in a closed state, the fixed terminal of the third switch K3 is connected to the corresponding selection terminal in a closed state.
Specifically, the second switch K2 and the third switch K3 are linked switch groups, for example, when the fixed end of the second switch K2 is connected with the 3 rd selection end thereof in a closed manner, the fixed end of the third switch K3 is connected with the 3 rd selection end thereof in a closed manner. Through the interlocked switch group, the first matching resistor R1 and the corresponding second matching resistor R2 keep the same state in the circuit, and are switched on or off simultaneously.
When the fixed terminal of the second switch K2 is connected to the different selection terminal in a closed manner, the load in the first discharge cell 10 is different, and accordingly, the current and the voltage of the first discharge cell 10 are different. Since the first load module 101 includes at least one first matched resistor R1 and the second load module 102 includes the same number of second matched resistors R2 as the first matched resistors R1, different quiescent current levels can be emulated.
Optionally, with continued reference to fig. 2, the first discharge unit 10 further includes a first adjustable resistor R9, one end of the first adjustable resistor R9 is connected to the adjustment end of the first voltage regulator controller U1, and the other end of the first adjustable resistor R9 is connected to the display gauge head 30.
Specifically, by adjusting the resistance of the first adjustable resistor R9, the magnitude of the current in the first discharge unit 10 can be finely adjusted to better fit the actual magnitude of the quiescent current.
Alternatively, the resistances of R1 may be 11.7k, 7.8k, 4.7k, and 2.02k, and the corresponding resistances of R2 may be 134.2k, 63.5k, 42k, and 31.4 k. By selecting different R1 and R2 to be conducted in the circuit, the coarse adjustment of the current value of 0-50 mA can be realized. The resistance value of the first adjustable resistor R9 can be 2k, and the fine adjustment of the current value of 0-10 mA can be realized through the first adjustable resistor R9.
On the basis of fig. 1, regarding the structure of the second discharge unit 20, the embodiment of the present application further provides a possible implementation manner, please refer to fig. 3.
The second discharge cell 20 includes: a fine tuning subunit 22 and at least one coarse tuning subunit 21, the fine tuning subunit 22 being connected in parallel to each set of coarse tuning subunits 21.
One end of each of the fine tone sub-units 22 and each of the sets of coarse tone sub-units 21 is connected to a selection terminal of the first switch K1.
The other end of the fine tone sub-unit 22 and each set of the coarse tone sub-units 21 are connected to a display header 30.
Specifically, the coarse adjustment subunit 21 is used to adjust the current level in the second discharge unit 20 in a large range, and the fine adjustment subunit 22 is used to adjust the current level in the second discharge unit 20 in a small range.
Optionally, with continuing reference to fig. 3, the coarse tuning subunit 21 includes: the voltage and current stabilizing module 210, the third resistor R3 and the fourth switch K4.
Two ends of the fourth switch K4 are respectively connected to one end of the voltage stabilizing and current stabilizing module 210 and one end of the third resistor R3, the other end of the voltage stabilizing and current stabilizing module 210 is connected to the selection end of the first switch K1, and the other end of the third resistor R3 is connected to the display gauge head 30.
Specifically, the fourth switch K4 is closed to indicate that the corresponding coarse tuning sub-unit 21 is turned on or partially turned on, the current in the detection circuit is increased by a specified value, and the magnitude of the current in the detection circuit can be roughly adjusted through the fourth switch K4.
Optionally, with continued reference to fig. 3, the voltage stabilizing and current stabilizing module 210 includes a first current expanding transistor Q1, a fourth resistor R4, a second voltage stabilizing controller U2, a fifth resistor R5, and a second adjustable resistor R10.
An emitting electrode of the first current-spreading triode Q1 and one end of the fourth resistor R4 are connected to a selection end of the first switch K1, the other end of the fourth resistor R4 is connected to a base electrode of the first current-spreading triode Q1, an input end of the second voltage-stabilizing controller U2 is connected between the other end of the fourth resistor R4 and the base electrode of the first current-spreading triode Q1, and a collector electrode of the first current-spreading triode Q1 is connected to the fourth switch K4.
Two ends of the fifth resistor R5 are respectively connected to the adjusting end and the output end of the second voltage-stabilizing controller U2; one end of the second adjustable resistor R10 is connected to the adjusting end of the second voltage regulator controller U2, the other end of the second adjustable resistor R10 is connected to the display meter head 30, and the output end of the second voltage regulator controller U2 is connected to the fourth switch K4.
The second adjustable resistor R10 is used to fine tune the value of the current and voltage in the regulator ballast 210.
The current value after passing through the voltage and current stabilizing module 210 is kept constant.
Optionally, with continued reference to fig. 3, the coarse tuning subunit 21 further includes an indication device T, and the indication device T is connected in series between the third resistor and the display header 30.
The indication device T is used to display the conducting state in the coarse tuning subunit 21. For example, when one indicator T shows on, the output current of the coarse adjustment subunit 21 may be 1A, and the output current increases by 1A each time one indicator T is added to show on. The indicator T may be a light emitting diode.
Optionally, with continued reference to fig. 3, the fine adjustment subunit 22 includes: the voltage regulator comprises a second current-expanding triode Q2, a third voltage-stabilizing controller U3, a third adjustable resistor R11, a sixth resistor R6, a seventh resistor R7 and an eighth resistor R8.
An emitter of the second current-spreading triode Q2 and one end of the sixth resistor R6 are connected to a selection end of the first switch K1, the other end of the sixth resistor R6 is connected to a base of the second current-spreading triode Q2, an input end of the third voltage-stabilizing controller U3 is connected between the other end of the sixth resistor R6 and the base of the second current-spreading triode Q2, and a collector of the second current-spreading triode Q2 is connected to one end of the eighth resistor R8.
Two ends of the seventh resistor R7 are respectively connected to the adjusting end and the output end of the third voltage-stabilizing controller U3; one end of the third adjustable resistor R11 is connected to the adjusting end of the third regulator controller U3, the other end of the third adjustable resistor R11 is connected to the display meter head 30, and the output end of the third regulator controller U3 is connected to one end of the eighth resistor R8 connected to the collector of the second current-expanding transistor Q2.
The other end of the eighth resistor R8 is connected to the display gauge head 30.
The fine adjustment subunit 22 can fine-adjust the current value in the second discharge unit 20, and plays a role in stabilizing voltage and current.
Possibly, R3 is formed by two resistors in parallel with values of 330k and 5.6 k. The resistance value of R4 is 10k, the resistance value of R5 is 330k, the resistance value of R6 is 10k, the resistance value of R7 is 430k, and the resistance value of R8 is 8 k. The resistance values of R11 and R10 are 2 k. The current coarse adjustment of 0-2A can be realized through one coarse adjustment subunit 21, and the current adjusting ranges are different through the arrangement of a plurality of coarse adjustment subunits 21. By changing the resistance value of R11 in the fine tuning subunit 22, fine tuning of 0-1A can be realized. Through the second discharge unit 20, the magnitude of the unused discharge current can be simulated, and more test scenes can be satisfied.
Optionally, with continued reference to fig. 3, the second discharge unit 20 further includes a heat removal device 23, one end of the heat removal device 23 is connected to the selection end of the first switch K1 connected to the emitter of the Q1, and the other end of the heat removal device 23 is connected to the display head 30.
The second discharge unit 20 generates a large amount of heat during operation, which may damage the equipment, and the protection equipment may discharge heat through the heat discharging device 23. Possibly, the heat removal device 23 is a fan.
Optionally, referring to fig. 4, the test platform further includes an ECU50, and the ECU50 is connected to a battery sensor (EBS). The battery sensor is connected in series in a charge-discharge loop of the storage battery and is arranged on a negative pole post of the storage battery.
The battery sensor is used to measure index information of the storage battery and transmit the index information to the ECU 50.
The index information comprises the current value, the voltage value and the temperature value of the storage battery.
The ECU50 may be an onboard processor. The battery sensor can detect the actual operating state of the storage battery. Alternatively, the ECU50 may be connected to other terminals through an SPY interface to communicate with each other, and upload the detected index information in real time.
Alternatively, the ECU50, SPY, and EBS may be powered through an OBD interface.
Possibly, K1 and K5 are linked switches, and when the fixed end of K1 is suspended, K5 is closed, and the detection table is not used for measuring under the line, so that the actual working state of the storage battery is monitored.
Optionally, the first pin of the display gauge head 30 is connected to the positive pole of the battery 40 for energizing the display gauge head 30. The fourth pin and the fifth pin of the display meter head 30 are connected to the same selection terminal of the first switch K1, and the display meter head 30 performs self-calibration when the fixed terminal of the first switch K1 is closed with the selection terminal. The second pin of the display gauge head 30 is connected to the negative electrode of the battery 40, and the third pin of the display gauge head 30 is connected to the first discharge cell 10 and the second discharge cell 20.
The model of the voltage stabilizing controller in the embodiment of the application can be selected as LM317 EMP.
The embodiment of the application also provides a transportation device, and the transportation device comprises the storage battery performance detection platform.
It should be noted that, the transportation device provided in this embodiment can achieve the technical effect corresponding to the battery performance detection platform. For the sake of brevity, the corresponding contents in the above embodiments may be referred to where not mentioned in this embodiment.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The storage battery performance detection platform is characterized by comprising a display meter head, a first switch, a first discharge unit and a second discharge unit, wherein the fixed end of the first switch is connected with the anode of a storage battery to be detected, one end of the first discharge unit and one end of the second discharge unit are respectively connected with different selection ends of the first switch, the other end of the first discharge unit and the other end of the second discharge unit are both connected with one pin of the display meter head, the other pin of the display meter head is connected with the cathode of the storage battery, and internal load resistance values of the first discharge unit and the second discharge unit are different;
the first switch is used for switching the conducting state between the storage battery and the first discharging unit and between the storage battery and the second discharging unit;
the display gauge outfit is used for recording a first discharging time length when the storage battery is conducted with the first discharging unit;
the display gauge outfit is also used for recording a second discharge duration when the storage battery is conducted with the second discharge unit, and acquiring the capacity of the storage battery according to the second discharge duration, the current value and the voltage value which are matched with the second discharge unit.
2. The battery performance test station of claim 1, wherein the first discharge cell comprises: the load balancing circuit comprises a first voltage stabilizing controller, a second switch, a third switch, a first load module and a second load module, wherein the first load module comprises at least one first matching resistor, and the second load module comprises second matching resistors with the same number as the first matching resistors;
the input end of the first voltage stabilizing controller is connected with the selection end of the first switch;
one end of each first matching resistor is connected with the adjusting end of the first voltage stabilizing controller, the other end of each first matching resistor is connected to different selecting ends of the second switch, and the fixed end of the second switch is connected to the output end of the first voltage stabilizing controller;
one end of each second matching resistor is connected with the output end of the first voltage stabilizing controller, the other end of each second matching resistor is connected to different selection ends of the third switch, and the fixed end of the third switch is connected to the display meter head;
the selection end of the second switch corresponds to the selection end of the third switch, and when the fixed end of the second switch is connected with one of the selection ends in a closed mode, the fixed end of the third switch is connected with the corresponding selection end in a closed mode.
3. The battery performance testing station of claim 2, wherein the first discharging unit further comprises a first adjustable resistor, one end of the first adjustable resistor is connected to the adjusting end of the first voltage regulator controller, and the other end of the first adjustable resistor is connected to the display gauge head.
4. The battery performance test station of claim 1, wherein the second discharge unit comprises: the fine tuning sub-unit is connected with each group of coarse tuning sub-units in parallel;
one end of each group of coarse tuning subunits is connected with the selection end of the first switch;
the other ends of the fine tuning subunit and each group of coarse tuning subunits are connected to the display gauge head.
5. The battery performance test station of claim 4, wherein the coarse tune subunit comprises: the voltage stabilizing and current stabilizing module, the third resistor and the fourth switch;
the two ends of the fourth switch are respectively connected to one end of the voltage and current stabilizing module and one end of the third resistor, the other end of the voltage and current stabilizing module is connected to the selection end of the first switch, and the other end of the third resistor is connected to the display meter head.
6. The battery performance test station of claim 5, wherein the voltage and current stabilization module comprises a first current expansion transistor, a fourth resistor, a second voltage stabilization controller, a fifth resistor, and a second adjustable resistor;
an emitter of the first current expansion triode and one end of the fourth resistor are connected to a selection end of the first switch, the other end of the fourth resistor is connected with a base electrode of the first current expansion triode, an input end of the second voltage stabilization controller is connected between the other end of the fourth resistor and the base electrode of the first current expansion triode, and a collector of the first current expansion triode is connected to the fourth switch;
two ends of the fifth resistor are respectively connected to the adjusting end and the output end of the second voltage stabilizing controller; one end of the second adjustable resistor is connected to the adjusting end of the second voltage stabilizing controller, the other end of the second adjustable resistor is connected to the display gauge outfit, and the output end of the second voltage stabilizing controller is connected to the fourth switch.
7. The battery performance testing station of claim 5, wherein the coarse tuning sub-unit further comprises an indicator device connected in series between the third resistor and the display header.
8. The battery performance test station of claim 4, wherein the fine tune subunit comprises: the second current-expanding triode, the third voltage-stabilizing controller, the third adjustable resistor, the sixth resistor, the seventh resistor and the eighth resistor;
an emitter of the second current expansion triode and one end of the sixth resistor are connected to a selection end of the first switch, the other end of the sixth resistor is connected with a base electrode of the second current expansion triode, an input end of the third voltage stabilization controller is connected between the other end of the sixth resistor and the base electrode of the second current expansion triode, and a collector of the second current expansion triode is connected to one end of the eighth resistor;
two ends of the seventh resistor are respectively connected to the adjusting end and the output end of the third voltage stabilizing controller; one end of the third adjustable resistor is connected to the adjusting end of the third voltage stabilizing controller, the other end of the third adjustable resistor is connected to the display gauge outfit, and the output end of the third voltage stabilizing controller is connected to one end of the eighth resistor, which is connected with the collector of the second current expansion triode;
the other end of the eighth resistor is connected to the display gauge head.
9. The battery performance test station of claim 1, further comprising an ECU connected to a battery sensor, the battery sensor being connected in series in a charge-discharge circuit of the battery, the battery sensor being mounted to a negative terminal of the battery;
the battery sensor is used for measuring index information of the storage battery and transmitting the index information to the ECU;
the index information comprises the current value, the voltage value and the temperature value of the storage battery.
10. A transportation device characterized in that it comprises a battery performance test station according to any one of claims 1 to 9.
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| CN112433163B (en) | 2024-03-01 |
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