CN211826283U - Aging device of direct current charging module - Google Patents
Aging device of direct current charging module Download PDFInfo
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- CN211826283U CN211826283U CN201922485998.XU CN201922485998U CN211826283U CN 211826283 U CN211826283 U CN 211826283U CN 201922485998 U CN201922485998 U CN 201922485998U CN 211826283 U CN211826283 U CN 211826283U
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Abstract
The application discloses ageing device of direct current module of charging is applied to electron technical field for it is big, ageing inefficiency and the big technical problem of potential safety hazard to solve occupation face when current ageing device ages a plurality of direct current modules of charging. The aging device of the direct current charging module comprises a power supply, the direct current charging module, a branch control switch, a direct current load device and a monitoring system, wherein the direct current charging module comprises a plurality of direct current charging modules, each direct current charging module forms an aging branch, each aging branch is connected between the power supply and the direct current load device in parallel, and each aging branch is provided with the branch control switch; the monitoring system is connected with each direct current charging module and each branch control switch and used for detecting the aging parameters of the direct current charging modules, and when the aging parameters of the direct current charging modules meet preset conditions, the branch control switches of the aging branches where the direct current charging modules are located are controlled to be disconnected.
Description
Technical Field
The application relates to the technical field of electronics, especially, relate to aging device of direct current charging module.
Background
With the popularization of domestic and foreign electric vehicles and the mass construction of charging station infrastructure, a large number of charging pile enterprises appear, each charging pile enterprise needs to carry out mass load aging on products in the charging pile production process in order to ensure the production quality of the charging pile and reduce the after-sales service cost, and particularly, the charging pile enterprises are used as a core component of a direct-current charging pile, namely a direct-current charging module, and the load aging process is a key process for ensuring the stable performance and the reliable devices of the products.
Therefore, each manufacturer faces the aging process problem of the direct current charging module in the production process, and the aging process equipment is used for solving the problem that the direct current charging module is located in the core equipment in the aging process. Meanwhile, the dc charging module requires a large amount of energy during the full load aging process, and the handling of the energy is a key factor determining the manufacturing cost. At present, most of charging pile manufacturers directly adopt a new energy vehicle-mounted battery as a load for solving the load problem of a direct current charging module in an aging process, and although the load problem of the direct current charging module in the aging process is completely met, the whole aging equipment is high in cost, large in occupied area and low in efficiency due to the adoption of a large number of batteries. Some charging pile manufacturers select a resistor as a load of the direct current charging module in the aging process, but the resistor load is an energy consumption load, a large amount of energy can be consumed in the aging process, and the manufacturing cost of products can be greatly increased.
On the other hand, traditional ageing device can only age the direct current template that charges one to one, inconvenient intelligent management to the direct current template that charges, and ageing process needs more staff to participate in for there is great potential safety hazard in the ageing process of direct current module that charges, and traditional device ages the ageing inefficiency that makes the direct current template that charges one to the direct current template that charges simultaneously.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides an aging device of a direct current charging module to solve the technical problems that the occupied area is large, the aging efficiency is low and the potential safety hazard is large when the existing aging device ages a plurality of direct current charging modules.
According to the utility model provides an aging device of direct current charging module, including power and direct current charging module, still include branch control switch, direct current load device and monitored control system, this direct current charging module includes a plurality ofly, and every this direct current charging module forms an ageing branch road respectively, and each this ageing branch road connects in parallel between this power and this direct current load device, all is equipped with this branch control switch on each ageing branch road;
the monitoring system is connected with each direct current charging module and each branch control switch and used for detecting the aging parameters of the direct current charging modules, and when the aging parameters of the direct current charging modules meet preset conditions, the branch control switches of the aging branches where the direct current charging modules are located are controlled to be disconnected.
Further, the power supply is an alternating current power supply, the direct current load device is a direct current reactor, the power supply further comprises an inverter, an input end of the inverter is respectively connected with the direct current reactor and the monitoring system, an output end of the inverter is connected with an output end of the alternating current power supply in a common mode to form a common connection point, the common connection point is connected with an input end of the aging branch, and the inverter is used for converting direct currents output by the direct current reactor and the monitoring system into alternating currents and outputting the alternating currents to the input end of the aging branch.
Further, the direct current reactor further comprises a contactor K1 and a contactor K2, wherein the contactor K1 is arranged between the direct current reactor and the inverter, and the contactor K2 is arranged between the inverter and the common node.
Further, a breaker Q1 is included, the breaker Q1 being disposed between the ac power source and the common node.
Further, this branch control switch includes leading control switch, all is equipped with this leading control switch between the input of this ageing branch road and every this direct current module of charging.
Furthermore, the aging system also comprises buffer circuits, wherein each aging branch is provided with the buffer circuit, and the buffer circuits are respectively connected with the preposed control switch and the direct current charging module.
Further, the buffer circuit comprises a buffer resistor and a buffer control switch, the buffer resistor and the buffer control switch are connected in parallel between the front control switch and the direct current charging module, and the buffer control switch is connected with the monitoring system.
Further, the buffer control switch and the front control switch are both contactors.
Further, the branch control switch comprises a rear control switch, and the rear control switch is arranged between the output end of each direct current charging module and the output end of the aging branch.
Further, the monitoring system is a field programmable gate array FPGA or a micro control unit MCU.
The utility model provides an aging device of a direct current charging module, which is characterized in that a plurality of aging branches are arranged in the aging device, a direct current charging module to be aged is respectively arranged on each aging branch, each aging branch comprising the direct current charging module is connected between a power supply and a direct current load device in parallel, so that each direct current charging module is aged by using the same direct current load device, the occupied space of the aging device is reduced, a branch control switch for controlling the on-off of the corresponding branch is arranged on each aging branch, the aging device is provided with a monitoring system, the monitoring system is connected with each direct current charging module and each branch control switch, the aging parameters of the direct current charging module are detected by the monitoring system, when the aging parameters of the direct current charging module meet the preset conditions, the branch control switch of the aging branch where the direct current charging module is located is controlled to be switched off, when the aging process fails, the branch with the failure is disconnected in time, the aging of the direct current charging module on other branches is not influenced, and the safety of the aging line is protected, when the direct current charging module finishes aging, the branch circuit where the aged direct current charging module is located is automatically disconnected, the direct current charging module on other branch circuits is not influenced to continue aging, the whole aging process is intelligently controlled by the monitoring system, aging participation of workers is reduced, the safety of the aging process is improved, on the other hand, the monitoring system can control branch circuit control switches of a plurality of aging devices to be simultaneously switched on, so that the aging devices can age a plurality of direct current charging modules simultaneously, when one branch circuit finishes aging or breaks down, the direct current charging modules on other branch circuits are not influenced to continue aging, and the aging efficiency of the direct current charging modules is improved to a great extent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a block diagram of an aging apparatus of a dc charging module according to an embodiment of the present disclosure;
fig. 2 is a block diagram of an aging apparatus of a dc charging module according to another embodiment of the present disclosure;
fig. 3 is a schematic circuit diagram of an aging apparatus of a dc charging module according to an embodiment of the present disclosure;
fig. 4 is a schematic circuit diagram of an aging apparatus of a dc charging module according to another embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Implementations of the present application are described in detail below with reference to the following detailed drawings:
fig. 1 is a block diagram of an aging apparatus of a dc charging module in an embodiment of the present application, and as shown in fig. 1, the aging apparatus of the dc charging module includes a power supply 01 and a dc charging module 03, and further includes a branch control switch 02, a dc load device 05 and a monitoring system 04, where the dc charging module 03 includes a plurality of modules, each of the dc charging modules 03 forms an aging branch, each aging branch is connected in parallel between the power supply 01 and the dc load device 05, and each aging branch is provided with the branch control switch 02;
the monitoring system 04 is connected to each of the dc charging modules 03 and each of the branch control switches 02, and is configured to detect an aging parameter of the dc charging module 03, and control the branch control switch 02 of the aging branch where the dc charging module 03 is located to be turned off when the aging parameter of the dc charging module 03 meets a preset condition.
Further, the aging parameters include, but are not limited to, an aging time of the dc charging module 03, an aging temperature of the dc charging module 03, whether the dc charging module 03 is short-circuited, an aging voltage and an aging current of the dc charging module 03.
The dc load device 05 includes, but is not limited to, a dc reactor, a rechargeable battery, a resistor, and the like. The monitoring system 04 is a Field Programmable Gate Array (FPGA) (field Programmable Gate array) or a Micro Control Unit (MCU) (microcontroller unit).
In one embodiment, the monitoring system 04 is specifically configured to:
and judging whether the aging time of the direct current charging module 03 reaches a preset time, if so, judging that the direct current charging module 03 is aged.
In other embodiments, the monitoring system 04 is further specifically configured to:
collecting the aging temperature, the aging voltage and/or the aging current of the direct current charging module 03;
judging whether the aging of the branch circuit where the direct current charging module 03 is located is abnormal when at least one of the aging temperature, the aging voltage and/or the aging current is not within a preset range;
and controlling the branch control switch 02 of the branch where the aging abnormal direct current charging module 03 is located to be switched off.
Further, the ac power supply 01 is a 380V ac power supply.
The aging device of the direct current charging module provided by the embodiment is characterized in that a plurality of aging branches are arranged in the aging device, a direct current charging module to be aged is respectively arranged on each aging branch, each aging branch comprising the direct current charging module is connected between the power supply and the direct current load device in parallel, each direct current charging module is aged by using the same direct current load device, the occupied space of the aging device is reduced, a branch control switch for controlling the on-off of the corresponding branch is arranged on each aging branch, the aging device is provided with a monitoring system, the monitoring system is connected with each direct current charging module and each branch control switch, the aging parameters of the direct current charging module are detected by the monitoring system, when the aging parameters of the direct current charging module meet preset conditions, the branch control switch of the aging branch where the direct current charging module is located is controlled to be switched off, when the aging process fails, the branch with the failure is disconnected in time, the aging of the direct current charging module on other branches is not influenced, and the safety of the aging line is protected, when the direct current charging module finishes aging, the branch circuit where the aged direct current charging module is located is automatically disconnected, the direct current charging module on other branch circuits is not influenced to continue aging, the whole aging process is intelligently controlled by the monitoring system, aging participation of workers is reduced, the safety of the aging process is improved, on the other hand, the monitoring system can control branch circuit control switches of a plurality of aging devices to be simultaneously switched on, so that the aging devices can age a plurality of direct current charging modules simultaneously, when one branch circuit finishes aging or breaks down, the direct current charging modules on other branch circuits are not influenced to continue aging, and the aging efficiency of the direct current charging modules is improved to a great extent.
Fig. 2 is a block diagram of an aging apparatus of a dc charging module in another embodiment of the present invention, as shown in fig. 2, in this embodiment, the power supply 01 is an ac power supply, the dc load apparatus 05 is a dc reactor, and the aging apparatus further includes an inverter 06, an input end of the inverter 06 is respectively connected to the dc reactor and the monitoring system 04, an output end of the inverter 06 is connected to an output end of the ac power supply 01 to form a common node, the common node is connected to an input end of the aging branch, and the inverter 06 is configured to convert dc power output by the dc reactor and the monitoring system 04 into ac power and output the ac power to the input end of the aging branch.
In one embodiment, the inverter is a DC-AC inverter.
The DC reactor in this embodiment is used as an aging load of the DC charging module 03 and also as a power supply of the DC-AC inverter 06, and the DC power DC is converted into the AC power AC by the inverter 06 to be supplied to the DC charging module 03 for power supply, thereby forming a self-circulation of the power supply inside the system. The inverter and the mains supply simultaneously supply power to the dc charging module 03, and since a certain amount of loss exists in the aging process, the mains supply is used as a supplement to the system loss, and the main power supply is from the inverter.
The embodiment adopts the energy feedback system, so that the energy is recycled in the aging device of the direct current charging module 03, the energy consumption of the product in the aging process is greatly reduced, and the production and manufacturing cost is reduced.
The aging device of the direct current charging module further comprises a contactor K1 and a contactor K2, wherein the contactor K1 is arranged between the direct current reactor and the inverter 06, and the contactor K2 is arranged between the inverter 06 and the common junction.
Optionally, as shown in fig. 4, the aging apparatus of the dc charging module further includes a breaker Q1, the breaker Q1 is disposed between the ac power supply 01 and the common node, further, the breaker Q1 is connected to the monitoring system 04, and the monitoring system 04 controls the breaker Q1 by connecting an auxiliary contact of the breaker Q1 to a relay of the monitoring system 04, so as to control the on/off of the breaker Q1.
Fig. 3 is a schematic circuit structure diagram of an aging apparatus of a dc charging module in an embodiment of the present application, and as shown in fig. 3, the branch control switch 02 includes a front control switch 21, and the front control switch 21 is disposed between an input end of the aging branch and each dc charging module 03.
The circuit breaker Q1 and the front control switch 21 provided in this embodiment are used to control whether the ac power supply 01 supplies power to the dc charging module 03.
Further, the aging device of the dc charging module further includes buffer circuits, each of the aging branches is provided with the buffer circuit, and the buffer circuits are respectively connected with the front control switch and the dc charging module 03. As shown in fig. 4, the snubber circuit includes a snubber resistor and a snubber control switch, the snubber resistor and the snubber control switch are connected in parallel between the front control switch and the dc charging module 03, the snubber control switch is connected to the monitoring system 04, and the snubber resistor is shown as R1-R8 in fig. 4.
The buffer circuit provided by the embodiment can reduce the current impact on each aging branch circuit at the moment of electrifying the charging module. When the direct current charging module 03 is aged or has an aging fault, the direct current charging module needs to be detached, when a new direct current charging module is replaced, the replaced direct current charging module needs to be electrified and aged again, the direct current charging module is electrified through the buffer circuit, and current impact on the direct current charging module and the DC-AC inverter 06 can be avoided. As shown in the buffer circuit 07 in fig. 4, when the dc charging module is powered on, the front control switch 21 is turned on, the buffer control switch and the rear control switch 22 in the buffer circuit 07 are turned off, and the dc charging module 1 is slowly powered on through the resistor R2 in the buffer circuit 07, and when the monitoring system 04 detects that the output voltage of the dc charging module 1 is consistent with the output voltage of other dc charging modules, the buffer control switch and the rear control switch 22 in the buffer circuit 07 are turned on. When other direct current charging modules are powered on, the buffer circuit of the branch circuit where the direct current charging modules are located executes the same way.
As shown in fig. 4, the branch control switch 02 includes a post-control switch 22, the post-control switch 22 is disposed between the output end of each dc charging module 03 and the output end of the aging branch, and the post-control switch 22 is connected to the control system.
In one embodiment, the control system is further configured to:
when the aging parameter of the dc charging module 03 meets a preset condition, the rear control switch 22 is turned off first, and then the front control switch 21 is turned off.
This embodiment is through judging whether the ageing parameter of direct current charging module 03 satisfies preset condition to judge whether this direct current charging module 03's ageing process is unusual, work as when the ageing process of direct current charging module 03 appears unusually, break off earlier rearmounted control switch 22, the disconnection again leading control switch 21 can avoid the electric current to flow backward to trouble direct current charging module 03 in, avoids arousing bigger accident, thereby improves the security of the ageing device of the direct current charging module that this application provided.
Optionally, the snubber control switch and the front control switch 21 are both contactors. Further, the method is carried out. The rear control switch 22 is also a contactor. The monitoring system 04 controls the contactor by controlling the on-off of a controller coil of the contactor through a relay of the monitoring system 04.
The circuit operating principle of the aging apparatus of the dc charging module provided by this embodiment is as follows: the direct current charging module carries out full-load aging through a direct current load device 05, simultaneously converts Alternating Current (AC) into Direct Current (DC), controls the on-off of a rear control switch 22 through a monitoring system 04, converts the DC of a direct current load reactor into Alternating Current (AC) after passing through a DC-AC inverter 06, feeds the AC back to a position between a circuit breaker Q1 and a front control switch 21, controls the on-off between the DC reactor and the DC-AC inverter 06 through a contactor K1, and controls the on-off between the DC charging module fed back by the DC-AC inverter 06 through a contactor K2.
The monitoring system 04 carries out data acquisition monitoring, real-time dynamic monitoring and starting and stopping control of an electric system circuit on a direct current charging module, a DC-AC inverter 06 and a low-voltage electric control device (namely a contactor and a breaker), when a certain direct current charging module has a fault, records and stores data in the fault, and automatically stops aging of the fault direct current charging module, so that a user can detach the fault direct current charging module and replace a new direct current charging module for aging without influencing aging work of other direct current charging modules, when part of direct current charging modules finish aging according to an aging process, the aged part of direct current charging modules are detached, and the replaced direct current charging module continues aging, so that an aging device continuously works, and aging efficiency is improved.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. The aging device of the direct current charging module comprises a power supply, the direct current charging module, a branch control switch, a direct current load device and a monitoring system, wherein the direct current charging module comprises a plurality of direct current charging modules, each direct current charging module forms an aging branch, each aging branch is connected between the power supply and the direct current load device in parallel, and each aging branch is provided with the branch control switch;
the monitoring system is connected with each direct current charging module and each branch control switch and used for detecting the aging parameters of the direct current charging modules, and when the aging parameters of the direct current charging modules meet preset conditions, the branch control switches of the aging branches where the direct current charging modules are located are controlled to be disconnected.
2. The aging device of the dc charging module according to claim 1, wherein the power source is an ac power source, the dc load device is a dc reactor, and further comprising an inverter, an input end of the inverter is connected to the dc reactor and the monitoring system, respectively, an output end of the inverter is connected to an output end of the ac power source to form a common node, the common node is connected to an input end of the aging branch, and the inverter is configured to convert dc power output from the dc reactor and the monitoring system into ac power and output the ac power to the input end of the aging branch.
3. The aging apparatus of a dc charging module according to claim 2, further comprising a contactor K1 and a contactor K2, the contactor K1 being provided between the dc reactor and the inverter, and the contactor K2 being provided between the inverter and the common node.
4. The aging apparatus of the dc charging module of claim 2, further comprising a circuit breaker Q1, the circuit breaker Q1 being provided between the ac power source and the common node.
5. The aging apparatus of the dc charging module according to claim 1, wherein the branch control switch comprises a front control switch, and the front control switch is disposed between the input terminal of the aging branch and each of the dc charging modules.
6. The aging device of the dc charging module according to claim 5, further comprising a buffer circuit, wherein each aging branch is provided with the buffer circuit, and the buffer circuits are respectively connected to the front control switch and the dc charging module.
7. The aging apparatus of the dc charging module of claim 6, wherein the snubber circuit comprises a snubber resistor and a snubber control switch, the snubber resistor and the snubber control switch are connected in parallel between the front-end control switch and the dc charging module, and the snubber control switch is connected to the monitoring system.
8. The aging apparatus of the dc charging module of claim 7, wherein the snubber control switch and the pre-control switch are both contactors.
9. The aging apparatus of the dc charging module according to claim 1, wherein the branch control switch comprises a post-control switch, and the post-control switch is disposed between the output terminal of each dc charging module and the output terminal of the aging branch.
10. The aging apparatus of the dc charging module according to any one of claims 1 to 9, wherein the monitoring system is a field programmable gate array FPGA or a micro control unit MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922485998.XU CN211826283U (en) | 2019-12-30 | 2019-12-30 | Aging device of direct current charging module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922485998.XU CN211826283U (en) | 2019-12-30 | 2019-12-30 | Aging device of direct current charging module |
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| CN211826283U true CN211826283U (en) | 2020-10-30 |
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| CN201922485998.XU Active CN211826283U (en) | 2019-12-30 | 2019-12-30 | Aging device of direct current charging module |
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