CN112433163B - Storage battery performance detection table and traffic equipment - Google Patents
Storage battery performance detection table and traffic equipment Download PDFInfo
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- CN112433163B CN112433163B CN202011220368.0A CN202011220368A CN112433163B CN 112433163 B CN112433163 B CN 112433163B CN 202011220368 A CN202011220368 A CN 202011220368A CN 112433163 B CN112433163 B CN 112433163B
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- 238000003860 storage Methods 0.000 title claims abstract description 63
- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000007599 discharging Methods 0.000 claims abstract description 50
- 230000000087 stabilizing effect Effects 0.000 claims description 60
- 238000011056 performance test Methods 0.000 claims description 9
- 230000003068 static effect Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process 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
- 238000004073 vulcanization Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
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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
-
- 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 a battery performance detection platform and traffic equipment, the detection platform is including showing 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 discharging unit and the second discharging unit; the display gauge head is used for recording a first discharging duration which is equivalent to the static discharging duration of the storage battery when the storage battery is conducted with the first discharging unit; the display gauge head is also used for recording a second discharging time length when the storage battery is conducted with the second discharging unit, and acquiring the capacity of the storage battery according to the second discharging time length and a current value and a voltage value matched with the second discharging unit. The first switch is used for switching the conducting state of the storage battery, so that different checking functions can be realized, and various performances of the storage battery can be comprehensively detected by the same equipment, so that the defects of the prior art are overcome.
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 detection of the storage battery, the performance comparison of the storage battery of each manufacturer, the substrate vulcanization, capacity attenuation and other phenomena of the storage battery cannot be measured by using a common testing tool, and the measurement can be carried out only by using a professional large-scale charging and discharging machine, so that the device is inconvenient to carry. In addition, the dynamic electric quantity information of the existing mass production vehicle type is not actually tested, and only a common universal meter is used for testing the static current of the vehicle and the charging current under the idle speed, but the current in the dynamic use of the whole vehicle cannot be detected, so that whether the efficiency of a storage battery and the efficiency of an engine reach the design requirement or not cannot be known.
As the functions of the whole vehicle are upgraded, the functions of the control unit module become more and more huge, the power consumption of the whole vehicle is also increased continuously, and no detection equipment can monitor the power consumption state of the whole vehicle in real time at present; the performance requirements of the whole vehicle on the storage battery are continuously improved, and the phenomena of sulfuration, aging and capacity attenuation of the storage battery cannot be directly measured.
Disclosure of Invention
It is an object of the present application to provide a battery performance test stand and a traffic device to at least partially ameliorate the above problems.
In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:
in a first aspect, an embodiment of the present application provides a battery performance detection platform, where the detection platform includes a display gauge outfit, a first switch, a first discharge unit and a second discharge unit, where a fixed end of the first switch is connected with a positive electrode 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 with one pin of the display gauge outfit, the other pin of the display gauge outfit is connected with a negative electrode 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 conduction state between the storage battery and the first discharge unit and the second discharge unit;
the display gauge head is used for recording a first discharging duration when the storage battery is conducted with the first discharging unit;
the display gauge head is further used for recording a second discharging duration when the storage battery is conducted with the second discharging unit, and acquiring the capacity of the storage battery according to the second discharging duration and a current value and a voltage value matched with the second discharging unit.
Optionally, the first discharge unit includes: the switching device 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 with different selecting ends of the second switch respectively, and the fixed end of the second switch is connected with 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 with different selection ends of the third switch respectively, and the fixed end of the third switch is connected with the display gauge 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 in closed connection with one of the selection ends, the fixed end of the third switch is in closed connection with the corresponding selection end.
Optionally, the first discharging unit further includes a first adjustable resistor, one end of the first adjustable resistor is connected to the adjusting end of the first voltage stabilizing controller, and the other end of the first adjustable resistor is connected to the display gauge head.
Optionally, the second discharge unit includes: the fine tuning subunit and the at least one coarse tuning subunit are connected in parallel;
one end of the fine tuning subunit and one end of each group of coarse tuning subunits are connected with the selection end of the first switch;
the other ends of the fine adjustment subunit and each group of coarse adjustment subunits are connected with the display gauge head.
Optionally, the coarse tuning subunit includes: the voltage and current stabilizing module, the third resistor and the fourth switch;
the two ends of the fourth switch are respectively connected with one end of the voltage-stabilizing and current-stabilizing module and one end of the third resistor, the other end of the voltage-stabilizing and current-stabilizing module is connected with the selection end of the first switch, and the other end of the third resistor is connected with the display gauge head.
Optionally, the voltage and current stabilizing module comprises a first current expansion triode, a fourth resistor, a second voltage stabilizing controller, a fifth resistor and a second adjustable resistor;
the emitter of the first current-expanding triode and one end of the fourth resistor are connected to the selection end of the first switch, the other end of the fourth resistor is connected with the base electrode of the first current-expanding triode, the input end of the second voltage stabilizing controller is connected between the other end of the fourth resistor and the base electrode of the first current-expanding triode, and the collector electrode of the first current-expanding triode is connected to the fourth switch;
two ends of the fifth resistor are respectively connected with 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 head, 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 connected in series between the third resistor and the display gauge head.
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;
the emitter of the second current-expanding triode and one end of the sixth resistor are connected to the selection end of the first switch, the other end of the sixth resistor is connected with the base electrode of the second current-expanding triode, the input end of the third voltage-stabilizing controller is connected between the other end of the sixth resistor and the base electrode of the second current-expanding triode, and the collector electrode of the second current-expanding triode is connected to one end of the eighth resistor;
two ends of the seventh resistor are respectively connected with the adjusting end and the output end of the third voltage stabilizing controller; one end of the third adjustable resistor is connected with the adjusting end of the third voltage stabilizing controller, the other end of the third adjustable resistor is connected with the display gauge head, and the output end of the third voltage stabilizing controller is connected with one end of the eighth resistor connected with the collector electrode of the second current expansion triode;
and the other end of the eighth resistor is connected with 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 installed on a negative pole 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 a current value, a voltage value and a temperature value of the storage battery.
In a second aspect, embodiments of the present application provide a traffic device including a battery performance detection station as described above.
Compared with the prior art, in the 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 discharging unit and the second discharging unit; the display gauge head is used for recording a first discharging duration which is equivalent to the static discharging duration of the storage battery when the storage battery is conducted with the first discharging unit; the display gauge head is also used for recording a second discharging time length when the storage battery is conducted with the second discharging unit, and acquiring the capacity of the storage battery according to the second discharging time length and a current value and a voltage value matched with the second discharging unit. The first switch is used for switching the conducting state of the storage battery, so that different checking functions can be realized, and various performances of the storage battery can be comprehensively detected by the same equipment, so that the defects of the prior art are overcome.
In order to make the above 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 needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting in scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic connection diagram of a battery performance detection table according to an embodiment of the present disclosure;
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 test stand according to 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 unit; 21-a coarse tuning subunit; 22-fine tuning subunits; 23-a heat removal device; 210-a voltage and current stabilizing module; 30-displaying the header; 40-storage battery; 50-ECU.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like 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 an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship conventionally put in use of the product of the application, merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
At present, the phenomena of capacity detection of the storage battery, performance comparison of the storage battery of each manufacturer, substrate vulcanization, capacity attenuation and the like of the storage battery cannot be measured by using a common testing tool, and a professional large-scale charging and discharging machine is required to be used for measurement, so that the device is inconvenient to carry. Meanwhile, the dynamic electric quantity information of the existing mass production vehicle type is inconvenient to carry out actual test, only a common universal meter is used for testing the static current of the vehicle and the charging current under idle speed, and the current in the dynamic use of the whole vehicle cannot be detected, so that whether the efficiency of a storage battery and the efficiency of an engine reach the design requirement or not cannot be known.
In order to overcome the above problems, embodiments of the present application provide a battery performance test stand. Referring to fig. 1, fig. 1 is a schematic connection diagram of a battery performance test stand according to an embodiment of the present application. As shown in fig. 1, the detection platform includes a display gauge outfit 30, a first switch K1, a first discharge unit 10 and a second discharge unit 20, wherein a fixed end of the first switch K1 is connected with an anode of a storage battery 40 to be detected, one end of the first discharge unit 10 and one end of the second discharge unit 20 are respectively connected with 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 with one pin of the display gauge outfit 30, the other pin of the display gauge outfit 30 is connected with a cathode of the storage 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 closed and connected with the selection end connected with the first discharge unit 10, the storage battery 40 is connected with the first discharge unit 10, and the storage battery 40 is disconnected with the second discharge unit 20; when the fixed end of the first switch K1 is closed and connected with the selection end connected with the second discharge unit 20, the storage battery 40 is disconnected from the first discharge unit 10, and the storage battery 40 is conducted with the second discharge unit 20.
The display header 30 is used for recording the first discharge duration when the storage battery 40 is conducted with the first discharge unit 10.
The first discharge time period is a continuous discharge time period from the full charge state to the empty charge state of the battery 40. The first discharge unit 10 is used to simulate the load in the whole device when the traffic device is stationary. The first discharge time may be equivalent to the corresponding discharge duration when the traffic device is stationary.
The display header 30 is further configured to record a second discharge duration when the battery 40 is connected to the second discharge unit 20, and obtain a capacity of the battery 40 according to the second discharge duration and a current value and a voltage value matched with the second discharge unit 20.
The display header 30 may acquire a current value, a voltage value, and a sustained discharge time (second discharge time) in the circuit. The capacity of the battery 40 can be obtained based on the current value, the voltage value, and the second discharge time.
In summary, in the battery performance detection platform provided in the embodiments of the present application, the detection platform includes a display header, 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 discharging unit and the second discharging unit; the display gauge head is used for recording a first discharging duration which is equivalent to the static discharging duration of the storage battery when the storage battery is conducted with the first discharging unit; the display gauge head is also used for recording a second discharging time length when the storage battery is conducted with the second discharging unit, and acquiring the capacity of the storage battery according to the second discharging time length and a current value and a voltage value matched with the second discharging unit. The first switch is used for switching the conducting state of the storage battery, so that different checking functions can be realized, and various performances of the storage battery can be comprehensively detected by the same equipment, so that the defects of the prior art are overcome.
With reference to fig. 1, regarding the structure of the first discharge unit 10, a possible implementation manner is further provided in the embodiment of the present application, referring to fig. 2, the first discharge unit 10 includes: the first voltage stabilizing controller U1, the second switch K2, the third switch K3, the first load module 101 and the 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 second matching resistors R2 which are the same in number as the first matching resistors R1.
It should be noted that the resistance value of each first matching resistor R1 may be different, and the resistance value of the second matching resistor R2 may be different.
The input terminal (VI) of the first voltage stabilizing controller U1 is connected to the selection terminal of the first switch K1.
One end of each first matching resistor R1 is connected with the adjusting end (ADJ) of the first voltage stabilizing controller U1, the other end of each first matching resistor R1 is respectively connected with different selecting ends of the second switch K2, and the fixed end of the second switch K2 is connected with the output end (VO) of the first voltage stabilizing controller U1.
One end of each second matching resistor R2 is connected with the output end of the first voltage stabilizing controller U1, the other end of each second matching resistor R2 is respectively connected with different selection ends of the third switch K3, and the fixed end of the third switch K3 is connected with the display gauge head 30.
The selection end of the second switch K2 corresponds to the selection end of the third switch K3, and when the fixed end of the second switch K2 is in closed connection with one of the selection ends, the fixed end of the third switch K3 is in closed connection with the corresponding selection end.
Specifically, the second switch K2 and the third switch K3 are a linked switch group, for example, when the fixed end of the second switch K2 is closed and connected with the 3 rd selection end thereof, the fixed end of the third switch K3 is closed and connected with the 3 rd selection end thereof. The first matching resistor R1 and the corresponding second matching resistor R2 are kept in the same state in the circuit through the linked switch groups, and are synchronously turned on or turned off.
When the fixed end of the second switch K2 is closed and connected with different selection ends, the load in the first discharge unit 10 is different, and correspondingly, the current and the voltage of the first discharge unit 10 are different. Because the first load module 101 includes at least one first matching resistor R1 and the second load module 102 includes the same number of second matching resistors R2 as the first matching resistors R1, different quiescent current magnitudes can be mimicked.
Optionally, referring to fig. 2, the first discharging unit 10 further includes a first adjustable resistor R9, one end of the first adjustable resistor R9 is connected to the adjusting end of the first voltage stabilizing controller U1, and the other end of the first adjustable resistor R9 is connected to the display gauge outfit 30.
Specifically, the resistance value of the first adjustable resistor R9 is adjusted, so that the magnitude of the current value in the first discharge unit 10 can be finely adjusted to be more fit to the actual magnitude of the quiescent current.
Alternatively, the resistance values of R1 may be 11.7k, 7.8k, 4.7k, and 2.02k, and the corresponding resistance values of R2 may be 134.2k, 63.5k, 42k, and 31.4k. By selecting different R1 and R2 to be conducted in the circuit, the rough 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 fine adjustment of the current value of 0-10 mA can be achieved through the first adjustable resistor R9.
With respect to the structure of the second discharge unit 20 in fig. 1, a possible implementation manner is also provided in the embodiments of the present application, please refer to fig. 3.
The second discharge unit 20 includes: a fine tuning sub-unit 22 and at least one coarse tuning sub-unit 21, the fine tuning sub-unit 22 being connected in parallel with each set of coarse tuning sub-units 21.
One end of each of the fine tuning sub-unit 22 and the coarse tuning sub-units 21 is connected to the selection terminal of the first switch K1.
The other end of each coarse tuning sub-unit 21 and the fine tuning sub-unit 22 are connected to a display header 30.
Specifically, the coarse adjustment subunit 21 is configured to adjust the current level in the second discharge unit 20 in a large range, and the fine adjustment subunit 22 is configured to adjust the current level in the second discharge unit 20 in a small range.
Optionally, referring to fig. 3, the coarse tuning subunit 21 includes: the voltage stabilizing and current stabilizing module 210, the third resistor R3 and the fourth switch K4.
The 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 closing of the fourth switch K4 indicates that the corresponding coarse tuning subunit 21 is turned on or partially turned on, the current in the detection circuit is correspondingly increased by a specified value, and the magnitude of the current in the detection circuit can be coarsely adjusted through the fourth switch K4.
Optionally, referring to fig. 3, the voltage stabilizing and current stabilizing module 210 includes a first current spreading transistor Q1, a fourth resistor R4, a second voltage stabilizing controller U2, a fifth resistor R5, and a second adjustable resistor R10.
The emitter of the first current-expanding triode Q1 and one end of a fourth resistor R4 are connected to the selection end of the first switch K1, the other end of the fourth resistor R4 is connected with the base electrode of the first current-expanding triode Q1, the 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-expanding triode Q1, and the collector electrode of the first current-expanding triode Q1 is connected to the fourth switch K4.
The two ends of the fifth resistor R5 are respectively connected with 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 stabilizing controller U2, the other end of the second adjustable resistor R10 is connected to the display gauge outfit 30, and the output end of the second voltage stabilizing controller U2 is connected to the fourth switch K4.
The second adjustable resistor R10 is used for fine tuning the current and voltage value in the voltage stabilizing module 210.
The current value after passing through the voltage stabilizing and current stabilizing module 210 remains constant.
Optionally, referring to fig. 3, the coarse tuning subunit 21 further includes an indicator T connected in series between the third resistor and the display header 30.
The indication means T is used to indicate the on-state in the coarse tuning subunit 21. For example, when one of the indicating devices T is turned on, the output current of the coarse tuning subunit 21 may be 1A, and the output current is increased by 1A every time one of the indicating devices T is turned on. The indication means T may be a light emitting diode.
Optionally, please continue with reference to fig. 3, the fine-tuning subunit 22 includes: the second current-expanding triode Q2, the third voltage stabilizing controller U3, the third adjustable resistor R11, the sixth resistor R6, the seventh resistor R7 and the eighth resistor R8.
The emitter of the second current-expanding triode Q2 and one end of a sixth resistor R6 are connected to the selection end of the first switch K1, the other end of the sixth resistor R6 is connected with the base electrode of the second current-expanding triode Q2, the input end of a third voltage-stabilizing controller U3 is connected between the other end of the sixth resistor R6 and the base electrode of the second current-expanding triode Q2, and the collector electrode of the second current-expanding triode Q2 is connected to one end of an eighth resistor R8.
The two ends of the seventh resistor R7 are respectively connected with 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 voltage stabilizing controller U3, the other end of the third adjustable resistor R11 is connected to the display gauge head 30, and the output end of the third voltage stabilizing controller U3 is connected to the eighth resistor R8 and connected to one end of the collector of the second current expansion triode Q2.
The other end of the eighth resistor R8 is connected to the display header 30.
The current value in the second discharge unit 20 can be finely tuned by the fine tuning subunit 22, and functions as a voltage stabilizing and current stabilizing.
Possibly, R3 is formed by connecting two resistors with the resistances of 330k and 5.6k in parallel. The resistance of R4 is 10k, the resistance of R5 is 330k, the resistance of R6 is 10k, the resistance of R7 is 430k, and the resistance of R8 is 8k. The resistance values of R11 and R10 are 2k. Coarse adjustment of the current of 0 to 2A can be achieved by one coarse adjustment subunit 21, and the current range can be adjusted differently by providing a plurality of coarse adjustment subunits 21. By varying the resistance value of R11 in the fine tuning subunit 22, 0-1A fine tuning can be achieved. The second discharge unit 20 can simulate the magnitude of the unused discharge current, so as to satisfy more test scenes.
Optionally, referring to fig. 3, the second discharging unit 20 further includes a heat discharging device 23, one end of the heat discharging device 23 is connected to the selection end of the first switch K1 connected to the emitter of Q1, and the other end of the heat discharging device 23 is connected to the display header 30.
The second discharge unit 20 generates a large amount of heat during operation, possibly causing damage to the apparatus, and the protection apparatus can discharge heat through the heat discharging means 23. Possibly, the heat extraction means 23 is a fan.
Optionally, referring to fig. 4, the detection stage further includes an ECU50, and the ECU50 is connected to a battery sensor (Electronic BatterySensor, abbreviated as EBS). The battery sensor is connected in series in a charge-discharge loop of the storage battery, and the battery sensor is arranged on a negative pole post of the storage battery.
The battery sensor is used to measure index information of the secondary battery and transmit the index information to the ECU50.
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 state of the storage battery in actual operation can be detected through the battery sensor. Alternatively, the ECU50 may connect with other terminals using an SPY interface to communicate, 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, when the fixed end of K1 is suspended, K5 is closed, and the detection table is not in-line measurement at this time, but monitors the actual working state of the storage battery.
Optionally, a first pin of display header 30 is connected to the positive electrode of battery 40 for powering display header 30. The fourth pin and the fifth pin of the display gauge outfit 30 are connected to the same selection end of the first switch K1, and when the fixed end of the first switch K1 is closed with the selection end, the display gauge outfit 30 performs self-calibration. A second pin of the display gauge head 30 is connected to the negative electrode of the battery 40, and a third pin of the display gauge head 30 is connected to the first discharge unit 10 and the second discharge unit 20.
The voltage stabilizing controller in the embodiment of the application can be selected to be of a model LM317EMP.
The embodiment of the application also provides traffic equipment, which comprises the storage battery performance detection table.
It should be noted that, the traffic equipment provided by the embodiment can realize the technical effect of the corresponding storage battery performance detection platform. For a brief description, reference is made to the corresponding parts of the above embodiments, where this embodiment is not mentioned.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should 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 characteristics 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 (7)
1. The battery performance detection table is characterized by comprising a display gauge 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 positive electrode of a 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 gauge head, the other pin of the display gauge head is connected with the negative electrode of the battery, and the internal load resistance values of the first discharge unit and the second discharge unit are different;
the first switch is used for switching the conduction state between the storage battery and the first discharge unit and the second discharge unit;
the display gauge head is used for recording a first discharging duration when the storage battery is conducted with the first discharging unit;
the display gauge head is also used for recording a second discharging time length when the storage battery is conducted with the second discharging unit, and acquiring the capacity of the storage battery according to the second discharging time length and a current value and a voltage value matched with the second discharging unit;
the second discharge unit includes: the fine tuning subunit and the at least one coarse tuning subunit are connected in parallel;
one end of the fine tuning subunit and one end of each group of coarse tuning subunits are connected with the selection end of the first switch;
the other ends of the fine adjustment subunit and each group of coarse adjustment subunits are connected with the display gauge head;
the coarse tuning subunit includes: the voltage and current stabilizing module, the third resistor and the fourth switch;
the two ends of the fourth switch are respectively connected with one end of the voltage-stabilizing and current-stabilizing module and one end of the third resistor, the other end of the voltage-stabilizing and current-stabilizing module is connected with the selection end of the first switch, and the other end of the third resistor is connected with the display gauge head;
the voltage and current stabilizing module comprises a first current expansion triode, a fourth resistor, a second voltage stabilizing controller, a fifth resistor and a second adjustable resistor;
the emitter of the first current-expanding triode and one end of the fourth resistor are connected to the selection end of the first switch, the other end of the fourth resistor is connected with the base electrode of the first current-expanding triode, the input end of the second voltage stabilizing controller is connected between the other end of the fourth resistor and the base electrode of the first current-expanding triode, and the collector electrode of the first current-expanding triode is connected to the fourth switch;
two ends of the fifth resistor are respectively connected with 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 head, and the output end of the second voltage stabilizing controller is connected to the fourth switch.
2. The battery performance test stand of claim 1, wherein the first discharge unit comprises: the switching device 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 with different selecting ends of the second switch respectively, and the fixed end of the second switch is connected with 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 with different selection ends of the third switch respectively, and the fixed end of the third switch is connected with the display gauge 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 in closed connection with one of the selection ends, the fixed end of the third switch is in closed connection with the corresponding selection end.
3. The battery performance test stand of claim 2, wherein the first discharge unit further comprises 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 head.
4. The battery performance test stand of claim 1, wherein the coarse tuning subunit further comprises an indicator device coupled in series between the third resistor and the display header.
5. The battery performance test stand of claim 1, wherein the fine-tuning 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;
the emitter of the second current-expanding triode and one end of the sixth resistor are connected to the selection end of the first switch, the other end of the sixth resistor is connected with the base electrode of the second current-expanding triode, the input end of the third voltage-stabilizing controller is connected between the other end of the sixth resistor and the base electrode of the second current-expanding triode, and the collector electrode of the second current-expanding triode is connected to one end of the eighth resistor;
two ends of the seventh resistor are respectively connected with the adjusting end and the output end of the third voltage stabilizing controller; one end of the third adjustable resistor is connected with the adjusting end of the third voltage stabilizing controller, the other end of the third adjustable resistor is connected with the display gauge head, and the output end of the third voltage stabilizing controller is connected with one end of the eighth resistor connected with the collector electrode of the second current expansion triode;
and the other end of the eighth resistor is connected with the display gauge head.
6. The battery performance test stand of claim 1, further comprising an ECU connected to a battery sensor in series in a charge-discharge loop of a battery, the battery sensor being mounted to a negative post 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 a current value, a voltage value and a temperature value of the storage battery.
7. A traffic device, characterized in that the traffic device comprises the battery performance detection station according to any one of claims 1 to 6.
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| CN112433163A (en) | 2021-03-02 |
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