Calibration tool for charging and discharging equipment
By integrating the detection module, upper and lower computers in the calibration tooling of the charging and discharging equipment, the operation inconvenience caused by the large size of the equipment in the prior art is solved, and the portability and calibration efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202422190453.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing charging and discharging equipment calibration tooling is huge in size, resulting in inconvenient calibration operation and low efficiency.
A calibration tool for charging and discharging equipment integrating detection module, upper computer, middle computer and lower computer is designed, which is highly integrated in the box, including a switching power supply module and a power conversion module, which is used to detect and convert current and voltage signals, and divide the box into multiple accommodation spaces through an integrated support plate, which is convenient for movement and operation.
Through the highly integrated design, the device volume is reduced, portability and calibration efficiency are improved, and the operator can easily move the device to a designated position for calibration, significantly improving calibration efficiency.
Smart Images
Figure CN223180261U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of calibration tooling, in particular to a calibration tooling for charging and discharging equipment. Background Art
[0002] The new energy vehicle industry is rapidly developing in China, benefiting from a series of supportive government policies, including vehicle purchase tax exemptions, charging infrastructure development, and support for the promotion of new energy vehicles to rural areas and rural revitalization. With the increasing popularity of new energy vehicles, lithium-ion power batteries, as key components, are placing increasing demands on the precision of battery charging and discharging equipment during production. Battery charging and discharging equipment requires regular calibration to ensure that voltage and current accuracy meet production standards.
[0003] The existing charge and discharge calibration tooling is bulky, and the charge and discharge equipment usually needs to be moved to the calibration tooling for calibration, which is inconvenient to operate and results in low calibration efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a charging and discharging equipment calibration tool to shorten the calibration time and improve the calibration efficiency.
[0005] In order to solve the above technical problems, the utility model provides a charging and discharging equipment calibration tool.
[0006] The charging and discharging equipment calibration tool of the present invention includes a box body and a detection module, an upper computer, an intermediate computer, and a lower computer arranged in the box body; the lower computer includes a switching power supply module and a power conversion module, the switching power supply module is used to connect to a power supply, and the power conversion module is used to convert the alternating current of the power supply into direct current compatible with the charging and discharging equipment and output it to the charging and discharging equipment;
[0007] The detection module is used to detect the current and voltage of the charging and discharging device and transmit it to the intermediate computer in the form of a voltage signal. The intermediate computer is used to convert the voltage signal into a digital signal and transmit it to the host computer;
[0008] Two support plates are arranged in sequence from top to bottom in the box body, and the two support plates divide the box body into an upper accommodating space, a middle accommodating space and a bottom accommodating space from top to bottom; the upper computer and the middle computer are arranged in the upper accommodating space, the detection module and the switching power supply module are arranged in the middle accommodating space, and the power conversion module is arranged in the bottom accommodating space.
[0009] Furthermore, the mid-position machine is fixed on the side wall of the box body of the upper accommodating space.
[0010] Further, the detection module includes a current sensor and a multimeter. The current sensor is electrically connected to the multimeter, and the multimeter is electrically connected to the middle computer. The current sensor is used to detect the charge and discharge device.
[0011] Further, two support plates are also arranged in the middle accommodation space. The two support plates divide the middle accommodation space into a first accommodation space, a second accommodation space, and a third accommodation space from top to bottom. The multimeter and the switching power supply module are arranged in the first accommodation space, and the current sensor is arranged in the third accommodation space.
[0012] Further, the lower computer further includes an output copper bar. The output copper bar is arranged in the second accommodation space and is connected to the power conversion module for outputting the converted alternating current to the charge and discharge device.
[0013] Further, a voltage inspection board is also arranged in the first accommodation space.
[0014] Further, a DC contactor is also arranged in the third accommodation space.
[0015] Further, a plurality of universal wheels are arranged at the bottom of the box body, and a handrail is arranged on the box body.
[0016] Further, the middle computer is a monitoring board, and the upper computer is a computer electrically connected to the monitoring board.
[0017] Further, the multimeter is a six-and-a-half-digit multimeter.
[0018] Compared with the prior art, the present invention has at least the following beneficial effects:
[0019] Since the detection module, the upper computer, the middle computer, and the lower computer are highly integrated in the box body, the overall volume is small and the movement is relatively convenient. The operator can relatively easily move the charge and discharge device calibration tool of the present invention to a specified position adjacent to the charge and discharge device to be calibrated. The portability of the device is good, which is beneficial to improving the calibration efficiency of the charge and discharge device. Description of the Drawings
[0020] Figure 1 It is a schematic structural diagram of the charge and discharge device calibration tool after opening the box door in an embodiment of the present invention;
[0021] Figure 2 It is for the Figure 1 A-A sectional view of the charge and discharge device calibration tool in the present invention;
[0022] Figure 3 It is for Figure 1Structural schematic diagram of another perspective of the charging and discharging equipment calibration tooling in it.
[0023] Reference numerals:
[0024] 1. Box body; 2. Roller; 3. Box door; 4. Switching power supply module; 5. Power conversion module; 6. Support plate; 7. Current sensor; 8. Multimeter; 9. Monitoring board; 10. Computer mainframe; 11. Display; 12. Leakage protection switch; 13. DC contactor; 14. Output copper bar; 15. Voltage inspection board; 16. Handrail. Detailed implementation manners
[0025] The charging and discharging equipment calibration tooling of the present utility model will be described below in conjunction with the schematic diagrams, in which the preferred embodiments of the present utility model are shown. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving the advantageous effects of the present utility model. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present utility model.
[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.
[0027] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0028] In this application, unless otherwise clearly specified and defined, the term "connection" shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium. In addition, the term "electrical connection" can be a direct electrical connection or an indirect electrical connection through an intermediate medium.
[0029] In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present utility model.
[0030] The following combines the specification Figure 1 to the Figure 3 drawings to introduce the calibration tooling for the charge and discharge device of the present utility model.
[0031] In one of the embodiments, as Figure 1 , Figure 2 and Figure 3 shown, the automatic calibration tooling for the charge and discharge declaration includes a box body 1 and a detection module, a host computer, a middle computer, and a lower computer arranged in the box body 1; the lower computer includes a switching power supply module 4 and a power conversion module 5. The switching power supply module 4 is used to connect to a power supply, which is usually the alternating current of the commercial power. The power conversion module 5 is used to convert the alternating current of the power supply into direct current adapted to the charge and discharge device and output it to the charge and discharge device.
[0032] The detection module is used to detect the current and voltage of the charge and discharge device and transmit them to the middle computer in the form of voltage signals. The middle computer is used to convert the voltage signals into digital signals and transmit them to the host computer.
[0033] Two support plates 6 are sequentially arranged in the box body 1 from top to bottom. The two support plates 6 divide the box body 1 into an upper accommodation space, a middle accommodation space, and a bottom accommodation space from top to bottom; the host computer and the middle computer are arranged in the upper accommodation space, the detection module and the switching power supply module 4 are arranged in the middle accommodation space, and the power conversion module 5 is arranged in the bottom accommodation space.
[0034] Since the detection module, the host computer, the middle computer, and the lower computer are highly integrated in the box body 1, the overall volume is small and it is relatively convenient to move. The operator can relatively conveniently move the calibration tooling for the charge and discharge device of the present utility model to a specified position adjacent to the charge and discharge device to be calibrated. The portability of the device is good, which is beneficial to improving the calibration efficiency of the charge and discharge device.
[0035] In one embodiment, to save space, as Figure 2 shown, the middle-level machine is fixed on the side wall of the box body 1 in the upper accommodation space. Preferably, the middle-level machine is a monitoring board 9, and the upper-level machine is a computer electrically connected to the monitoring board 9. The monitoring board 9 has a data acquisition module, including an analog-to-digital converter (ADC) for converting analog signals (such as voltage signals) into digital signals. In other embodiments, the middle-level machine can also be a programmable logic controller (PLC). The calibration software for controlling the calibration process is installed in the computer. In this embodiment, the computer refers to the computer main unit 10, and the computer main unit 10 is arranged in the first accommodation space. The upper surface of the box body 1 can be used as a platform to accommodate the display 11 connected to the computer main unit 10. In other embodiments, the computer can also be a laptop computer. When in use, the laptop computer can be moved to the upper surface of the box body 1 for related operations. Among them, in order to improve the safety during use, a leakage protection switch 12 is also arranged in the upper accommodation space.
[0036] In one embodiment, as Figure 1 , Figure 2 and Figure 3 shown, the automatic calibration tooling for the charge and discharge device includes a box body 1 with a handrail 16. A plurality of rollers 2 are arranged at the bottom of the box body 1. A detection module, an upper-level machine, a middle-level machine, and a lower-level machine are arranged in the box 1. One side of the box body 1 has a box door 3. Opening the box door 3 enables the operation of the structure inside the box body 1. Among them, the handrail 16 can be a fixed handrail 16 or a telescopic handrail 16 such as that on a suitcase.
[0037] In one embodiment, to improve the structural strength of the tooling and better protect the structure inside the box body 1, the box body 1 is made of high-strength aluminum alloy material, with dimensions of 604mm×996mm×600mm. There are four rollers 2 at the bottom of the box body 1, all made of polyurethane material, with good wear resistance and stability. Preferably, the four rollers 2 are all universal wheels.
[0038] In one embodiment, the detection module includes a current sensor 7 and a multimeter 8. The current sensor 7 is electrically connected to the multimeter 8, and the multimeter 8 is electrically connected to the middle-level machine. The current sensor 7 is used to detect the current and voltage of the charge and discharge device. Preferably, the multimeter 8 is a six-and-a-half-digit multimeter 8.
[0039] Specifically, the current sensor 7 is preferably a Hall current sensor 7. Among them, a high-precision ammeter with a Hall current sensor 7 inside can be selected for use as the current sensor 7. In this embodiment, a high-precision through-hole ammeter with an accuracy of ±0.1 mA and a response time of 1 μs is selected. The multimeter 8 is preferably a six-and-a-half-digit multimeter 8. The high-precision through-hole ammeter feeds back the measured current signal to the six-and-a-half-digit multimeter 8. Then, the six-and-a-half-digit multimeter 8 measures the current and voltage of the charge and discharge device according to the feedback signal, and then transmits the current and voltage to the middle computer in the form of a voltage signal. The middle computer converts the voltage signal into a digital signal and transmits it to the upper computer, and the upper computer automatically calibrates the charge and discharge device according to the measured digital signal.
[0040] In one embodiment, in order to make full use of the space inside the box body 1, two support plates 6 are further arranged in the middle accommodating space. The two support plates 6 divide the middle accommodating space into a first accommodating space, a second accommodating space, and a third accommodating space from top to bottom; the multimeter 8 and the switch power supply module 4 are arranged in the first accommodating space, and the current sensor 7 is arranged in the third accommodating space.
[0041] Specifically, the switch power supply module 4 can introduce and control the shutdown of the commercial power. The power conversion module 5 is an AC / DC module, which converts alternating current into direct current adapted to the charge and discharge device and outputs it to the charge and discharge device. For example, the alternating current voltage of the commercial power is 2,20V, and the power conversion module 5 can output direct current with a voltage of 5V and a maximum output current of 10A. In one embodiment, an integrated operational amplifier circuit is arranged in the AC / DC module to stabilize the output voltage at 5V for facilitating the connection to the channels of the charge and discharge device.
[0042] In one embodiment, in order to supply power to the charge and discharge device, the lower computer further includes an output copper bar 14. The output copper bar 14 is arranged in the second accommodating space. The output copper bar 14 is connected to the power conversion module 5 and is used to output the converted alternating current to the charge and discharge device. In order to further improve the safety during use, a voltage inspection board 15 is further arranged in the first accommodating space to ensure the safety of the monitoring circuit and personnel. During use, the switch power supply is connected to the power supply, and the power conversion module 5 converts the alternating current of the power supply into the direct current required by the charge and discharge device. The converted direct current is output to the charge and discharge device through the output copper bar 14.
[0043] In one embodiment, in order to be able to flexibly control the calibration process, a DC contactor 13 is further arranged in the third accommodating space for the DC circuit between the power conversion module 5 and the charge and discharge device.
[0044] During calibration, first set the calibration steps in the calibration software of the host computer. The calibration software sends the step instructions to the middle computer through network port communication, and the middle computer sends the voltage and current calibration instructions to the switching power supply module 4 of the lower computer. The power conversion module 5 converts the alternating current of the commercial power into the direct current required by the charge and discharge device, and the converted direct current is output to the charge and discharge device through the output copper bar 14. The Hall current sensor 7 is connected to the charge and discharge device and feeds back the measured current signal to the six and a half digit multimeter 8. The six and a half digit multimeter 8 measures the current and voltage according to the feedback signal, and then transmits the current and voltage to the middle computer in the form of voltage signals. The middle computer converts the voltage signals into digital signals and transmits them to the host computer. The host computer automatically calibrates the charge and discharge device according to the measured data. The whole calibration process is relatively fast, takes a short time, and has extremely high calibration efficiency.
[0045] Since the detection module, the host computer, the middle computer and the lower computer are highly integrated in the box 1, the overall volume is small and it is relatively convenient to move. With the cooperation of the rollers 2 and the handrail 16, the operator can relatively easily move the charge and discharge device calibration tool of the present invention to the designated position adjacent to the charge and discharge device to be calibrated. The portability of the device is good, which is beneficial to improving the calibration efficiency of the charge and discharge device.
[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.
Claims
1. A calibration tool for a charge and discharge device, characterized in that It includes a box body and a detection module, a host computer, a middle computer, and a lower computer arranged in the box body; the lower computer includes a switching power supply module and a power conversion module, the switching power supply module is used to connect to a power supply, and the power conversion module is used to convert the alternating current of the power supply into direct current adapted to the charge and discharge device and output it to the charge and discharge device; The detection module is used to detect the current and voltage of the charge and discharge device and transmit them to the middle computer in the form of voltage signals, and the middle computer is used to convert the voltage signals into digital signals and transmit them to the host computer; Two support plates are sequentially arranged in the box body from top to bottom, and the two support plates divide the box body into an upper accommodation space, a middle accommodation space, and a bottom accommodation space from top to bottom; the host computer and the middle computer are arranged in the upper accommodation space, the detection module and the switching power supply module are arranged in the middle accommodation space, and the power conversion module is arranged in the bottom accommodation space.
2. The charge and discharge equipment calibration tooling according to claim 1, wherein The middle computer is fixed on the side wall of the box body in the upper accommodation space.
3. The calibration tooling for the charge and discharge device according to claim 1, characterized in that, The detection module includes a current sensor and a multimeter, the current sensor is electrically connected to the multimeter, the multimeter is electrically connected to the middle computer, and the current sensor is used to detect the charge and discharge device.
4. The calibration tooling for the charge and discharge device according to claim 3, characterized in that, Two support plates are also arranged in the middle accommodation space, and the two support plates divide the middle accommodation space into a first accommodation space, a second accommodation space, and a third accommodation space from top to bottom; the multimeter and the switching power supply module are arranged in the first accommodation space, and the current sensor is arranged in the third accommodation space.
5. The charging and discharging equipment calibration tooling according to claim 4, wherein The lower computer also includes an output copper bar, the output copper bar is arranged in the second accommodation space, and the output copper bar is connected to the power conversion module for outputting the converted alternating current to the charge and discharge device.
6. The charging and discharging equipment calibration tooling according to claim 4, wherein A voltage inspection board is also arranged in the first accommodation space.
7. The charging and discharging equipment calibration tooling according to claim 4, characterized in that, A DC contactor is also arranged in the third accommodation space.
8. The charging and discharging equipment calibration tooling according to claim 1, characterized in that A plurality of universal wheels are arranged at the bottom of the box body, and a handrail is arranged on the box body.
9. The charging and discharging equipment calibration tooling according to claim 1, wherein The middle computer is a monitoring board, and the host computer is a computer electrically connected to the monitoring board.
10. The charging and discharging equipment calibration tooling according to claim 3, characterized in that, The multimeter is a six-and-a-half-digit multimeter.