CN210270021U - Direct current fills electric pile testing arrangement and system - Google Patents
Direct current fills electric pile testing arrangement and system Download PDFInfo
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- CN210270021U CN210270021U CN201920865368.2U CN201920865368U CN210270021U CN 210270021 U CN210270021 U CN 210270021U CN 201920865368 U CN201920865368 U CN 201920865368U CN 210270021 U CN210270021 U CN 210270021U
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Abstract
The utility model relates to a direct current fills electric pile testing arrangement and system relates to direct current and fills electric pile, and direct current fills electric pile testing arrangement and includes load and direct current and fills electric pile testing arrangement, and direct current fills electric pile testing arrangement and includes quick-witted case and set up charging gun platform, touch screen, master switch unit, test interface unit and the internal electrical apparatus dish on the homonymy of quick-witted case or different side seal boards; the test interface unit comprises an auxiliary power supply test interface, a CAN bus communication test interface and a CC2 test interface; the internal electric appliance disc is electrically connected with the charging gun, the touch screen, the main switch unit and the test switch unit respectively. Implement the utility model discloses a direct current fills electric pile testing arrangement and system can simulate car battery output voltage in the test process and supply the direct current to fill electric pile and detect, can also simulate battery or car insulating nature to ground in addition to the reliability of test direct current fills electric pile detection insulating properties makes electric automobile charge safer.
Description
Technical Field
The utility model relates to a direct current fills electric pile, especially relates to a direct current fills electric pile testing arrangement and system.
Background
Electric vehicles belong to important components in national new energy strategies, and nowadays, electric vehicles are increasingly popularized, and the construction of matched charging facilities is also increasingly enlarged. In order to ensure the safety of the charging process and timely find the problems of the charging pile, the detection work of the charging pile is very important.
At present, the facility of charging is in the use, and the user can't detect the wholeness ability of filling electric pile, can't guarantee user's safety and the charging performance of the facility of charging like this. And the test of the charging facility needs to be checked by using a charging pile test system. At present, detection equipment on the market can communicate with a charging pile, and can perform resistance, electronic loading, energy feedback and the like.
However, the detection device on the market can only communicate with the charging pile and load the load, and cannot simulate the voltage of the automobile battery, the insulation of the automobile battery or the automobile to the ground and the like, namely cannot simulate the insulation of the automobile battery or the automobile to the ground, so that the safety performance of the charging pile in the charging process cannot be detected by the existing detection device.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in the above-mentioned defect of prior art, provides a direct current fills electric pile testing arrangement and system.
The utility model provides a technical scheme that its technical problem adopted is: the direct current charging pile testing device is used for loading a load to a direct current charging pile or controlling the load to be disconnected with the direct current charging pile, and comprises a case, a charging gun seat, a touch screen, a main switch unit, a testing interface unit and an internal electric appliance disc, wherein the charging gun seat, the touch screen, the main switch unit, the testing interface unit and the internal electric appliance disc are arranged on the same side sealing plate or different side sealing plates of the case; the direct current charging pile testing device is connected into the direct current charging pile through the charging gun seat; the test interface unit comprises a pair of auxiliary power supply test interfaces respectively connected with an auxiliary power supply positive end A + and an auxiliary power supply negative end A-of the charging gun holder, a pair of CAN bus communication test interfaces respectively connected with a CAN bus communication positive end S + and a CAN bus communication negative end S-of the charging gun holder, and a pair of second connection confirmation signal test interfaces respectively connected with a second connection confirmation signal terminal CC2 and a grounding terminal PE of the charging gun holder; a groove for mounting the touch screen and the internal electric appliance disc is formed in one side sealing plate of the case, the internal electric appliance disc is fixedly arranged at the bottom of the groove, and the touch screen is fixedly mounted at an opening of the groove; the utility model discloses a direct current charging pile, including inside electrical apparatus dish, test switch unit, charging gun, touch screen, main switch unit and test switch unit electricity, inside electrical apparatus dish respectively with the rifle that charges, the touch screen the main switch unit and the test switch unit electricity is connected, inside electrical apparatus dish is used for being in the analog voltage of inserting the power and for direct current charging pile output car battery under the control of main switch unit is used for changing the insulation resistance of the load that loads on the direct current charging pile under the control of test switch unit for detect the charging information of direct current charging pile, still be used for with direct current charging pile communicates.
Preferably, the internal appliance tray comprises:
the analog battery power supply unit is connected with the main switch unit, is controlled to be connected into or disconnected from a power supply according to the main switch unit, and is also used for outputting analog voltage of an automobile battery to be detected by the direct current charging pile when the power supply is connected and the direct current charging pile testing device and the direct current charging pile are successfully charged and handshake;
the insulation detection unit is connected with the test switch unit and used for changing the insulation resistance of the load loaded on the direct current charging pile according to the control of the test switch unit;
the direct current power supply detection unit is used for detecting the voltage and the current output by the direct current charging pile;
the first connection confirmation signal detection unit is used for detecting the voltage output by the direct current charging pile at a first connection confirmation signal communication end;
the auxiliary power supply detection unit is used for detecting an auxiliary power supply provided by the direct current charging pile;
a monitoring unit connected to the analog battery power supply unit, the dc power supply detection unit, the first connection confirmation signal detection unit, the auxiliary power supply detection unit, and the touch screen, respectively, for controlling the analog battery power supply unit to change the output analog voltage of the car battery, for outputting the detected voltage and current output by the dc charging pile to the touch screen for display, for determining whether the dc charging pile testing device is connected to the dc charging pile according to the detected voltage output by the dc charging pile at the first connection confirmation signal communication terminal, for determining whether the dc charging pile correctly provides the auxiliary power supply according to the detected auxiliary power supply, and for communicating with the dc charging pile through a CAN protocol to send a message to the dc charging pile and setting the charging pile message according to the input information received by the touch screen, the content of the message includes vehicle parameters and charging data.
Preferably, the monitoring unit includes:
the BMS simulator is used for communicating with the direct current charging pile through a CAN protocol so as to send a message to the direct current charging pile, and the content of the message comprises automobile parameters and charging data;
a monitoring module respectively connected with the analog battery power supply unit, the DC power supply detection unit, the first connection confirmation signal detection unit, the auxiliary power supply detection unit, the touch display unit and the BMS simulator, the analog battery power supply unit is used for controlling the analog battery power supply unit to change the output analog voltage of the automobile battery, and is used for outputting the detected voltage and current output by the direct current charging pile to the touch screen for display, used for judging whether the direct current charging pile testing device is connected with the direct current charging pile or not according to the detected voltage output by the direct current charging pile at the first connection confirmation signal communication end, and the BMS simulator is used for judging whether the direct current charging pile correctly provides the auxiliary power supply according to the detected auxiliary power supply and controlling the BMS simulator to set the message according to the input information received by the touch screen.
Preferably, the test switch unit includes a first switch K1 and a second switch K2; the insulation detecting unit includes a first resistor R1 and a second resistor R2; one end of the first resistor R1 is connected to the DC output positive terminal DC + of the charging gun seat, and the other end is grounded through the first switch K1; one end of the second resistor R2 is connected to the DC output negative pole terminal DC-of the charging gun seat, and the other end is grounded through the second switch K2.
Preferably, the input end of the analog battery power supply unit is connected to a 220V alternating current power supply through the main switch unit, the output positive terminal of the analog battery power supply unit is connected to the DC output positive terminal DC + of the charging gun base, the output negative terminal of the analog battery power supply unit is connected to the DC output negative terminal DC-of the charging gun base, and the control signal input end of the analog battery power supply is connected to the monitoring module;
two sampling ends of the direct-current power supply detection unit are respectively connected to a direct-current output positive end DC + and a direct-current output negative end DC-of the charging gun seat, and an output end of the direct-current power supply detection unit is connected with the monitoring module;
the sampling end of the first connection confirmation signal detection unit is connected to a first connection signal communication end CC1 of the charging gun holder, and the output end of the first connection confirmation signal detection unit is connected with the monitoring module;
two sampling ends of the auxiliary power supply detection unit are respectively connected to an auxiliary power supply positive end A + and an auxiliary power supply negative end A-of the charging gun seat, and an output end of the auxiliary power supply detection unit is connected with the monitoring module;
the positive interface of CAN bus communication of BMS simulator is connected with the positive terminal S + of CAN bus communication of rifle seat charges, the negative interface of CAN bus communication of BMS simulator is connected with the negative terminal S-of CAN bus communication of rifle seat charges, the signal input/output end of BMS simulator with the monitor module is connected.
Preferably, the internal electrical panel further comprises a first direct current contactor KM1 connected between the positive direct current output terminal DC + of the charging gun holder and the positive terminal of the load and/or a second direct current contactor KM2 connected between the negative direct current output terminal DC-of the charging gun holder and the negative terminal of the load;
and the internal electrical appliance panel further comprises a fuse FU connected between the direct current output positive terminal DC + of the charging gun seat and the positive terminal of the load, and a shunt FL connected between the direct current output negative terminal DC-of the charging gun seat and the negative terminal of the load.
Preferably, a spare mounting position of the test switch is further arranged on a side sealing plate of the case, on which the test switch unit is mounted; and a standby installation position of the test interface is also arranged on one side sealing plate of the case, which is provided with the test interface unit.
Preferably, the case comprises a front sealing plate, a rear sealing plate, a left sealing plate, a right sealing plate, an upper sealing plate and a lower sealing plate; the charging gun seat, the touch screen, the main switch unit, the test interface unit and the internal electric appliance disc are arranged on a front sealing plate of the case; the left sealing plate of the case is provided with a load power supply output port for accessing and supplying power to a load and a fan power supply output port for supplying power to a fan of the load.
The direct current charging pile testing system comprises a load and is characterized by further comprising the direct current charging pile testing device.
Preferably, the load comprises a housing comprising a top closure plate, a bottom closure plate, a first side closure plate, a second side closure plate, a third side closure plate and a fourth side closure plate; one or more fans are arranged on the first side sealing plate; the top sealing plate is provided with a load power supply input port, a fan switch and a load handle installation position, wherein the load power supply input port is used for being connected with a load power supply output port of the direct current charging pile testing device, the fan power supply input port is used for being connected with the direct current charging pile testing device to obtain a power supply, and the fan switch and the load handle installation position are respectively electrically connected with the fan power supply input port and the one or more fans.
Implement the utility model discloses a direct current fills electric pile testing arrangement and system can simulate car battery output voltage in the test process and supply the direct current to fill electric pile and detect, can also simulate battery or car insulating nature to ground in addition to the reliability of test direct current fills electric pile detection insulating properties makes electric automobile charge safer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a functional block diagram of a first embodiment of a dc charging pile testing apparatus provided by the present invention;
fig. 2 is a structural diagram of a case in a first embodiment of a testing device for a dc charging pile according to the present invention;
fig. 3 is a functional block diagram of an internal electrical appliance tray of the dc charging pile testing device provided by the present invention;
fig. 4 is a circuit diagram of a first embodiment of a dc charging pile testing apparatus provided by the present invention;
fig. 5 is a structural diagram of a load in the first embodiment of the dc charging pile testing system according to the present invention;
fig. 6 is the utility model provides a pair of direct current fills structure diagram of the top shrouding of load in the first embodiment of electric pile test system.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a direct current fills electric pile testing arrangement's first embodiment, direct current fills electric pile testing arrangement and is used for filling electric pile or control load and direct current with the load loading direct current and fills the electric pile disconnection, still is used for filling the information of charging of electric pile to the direct current and detects, still is used for filling the circumstances of charging of electric pile to the direct current and tests, still is used for filling electric pile with the direct current and communicates. Referring to fig. 1 and 2, the dc charging pile testing apparatus 10 of the present embodiment includes a chassis 11, a charging gun base 12, a touch screen 13, a main switch unit 14, a test switch unit 15, a test interface unit 16, and an internal electrical panel 17.
The enclosure 11 includes a front sealing plate 111, a rear sealing plate (not shown in fig. 2, which is a surface of the front sealing plate 111 opposite to the front sealing plate), a left sealing plate 112, a right sealing plate (not shown in fig. 2, which is a surface of the left sealing plate 112 opposite to the front sealing plate), a lower sealing plate 113, and an upper sealing plate (not shown in fig. 2, which is a surface of the lower sealing plate 113 opposite to the front sealing plate), which are fixed to each other by screws 114. The charging gun base 12, the touch screen 13, the main switch unit 14, the test switch unit 15, the test interface unit 16, and the internal electrical appliance panel 17 may be disposed on the same side sealing plate or different side sealing plates of the case 11, and preferably, as shown in fig. 2, the charging gun base 12, the touch screen 13, the main switch unit 14, the test switch unit 15, the test interface unit 16, and the internal electrical appliance panel 17 are disposed on the front sealing plate 111 of the case 11.
Specifically, referring to fig. 2, the front sealing plate 111 is provided with a charging gun seat mounting position 111-a for fixedly mounting the charging gun seat 12, and a main switch mounting position 111-b for fixedly mounting the main switch unit 14.
In the present embodiment, the test interface unit 16 includes a pair of auxiliary power supply test interfaces respectively connected to the auxiliary power supply positive terminal a + and the auxiliary power supply negative terminal a-of the charging gun holder 12, a pair of CAN bus communication test interfaces respectively connected to the CAN bus communication positive terminal S + and the CAN bus communication negative terminal S-of the charging gun holder 12, and a pair of second connection confirmation signal test interfaces respectively connected to the second connection confirmation signal terminal CC2 and the ground terminal PE of the charging gun holder 12. Referring to fig. 2, correspondingly, the front sealing plate 111 is provided with an auxiliary power supply testing interface mounting position 111-c1, a CAN bus communication testing interface mounting position 111-c2, and a second connection confirmation signal testing interface mounting position 111-c3 (the present invention does not limit the sequence of 111-c1 to 111-c3 and the layout position on the front sealing plate 111). In other embodiments, one or more pairs of spare mounting sites for the test interface (e.g., two pairs of spare mounting sites behind 111-c3 in fig. 2) may be formed on the front cover plate 111.
In the present embodiment, the test switch unit 15 includes two test switches (see K1 and K2 in fig. 4), and referring to fig. 2, two test switch mounting positions 111-d1 and 111-d2 for mounting the two test switches are opened on the front sealing plate 111. In other embodiments, the front cover plate 111 may further have one or more spare mounting locations for testing switches (e.g., two spare mounting locations shown in fig. 2, i.e., front and back of 111-d 1).
In this embodiment, as shown in fig. 2, the front sealing plate 111 is further provided with a groove for mounting the touch screen 13 and the internal electrical appliance panel 17, specifically, an opening of the groove is provided with mounting positions 111-e1 of the touch screen, a bottom of the groove is provided with mounting positions 111-e2 of the internal electrical appliance panel 17, the touch screen 13 is fixedly mounted at the mounting positions 111-e1, and the internal electrical appliance panel 17 is fixedly mounted at the mounting positions 111-e 2.
In this embodiment, a load power output for receiving and supplying power to the load and a fan power output for supplying power to the fan of the load may be further disposed on one side sealing plate of the chassis 11, and referring to fig. 2, the load power output 111-f and the fan power output 111-g may be disposed on the left sealing plate 112.
As shown in fig. 1, the internal electric appliance panel 17 is electrically connected to the charging gun 12, the touch screen 13, the main switch unit 14 and the test switch unit 15, and the internal electric appliance panel 17 is used for accessing a power supply under the control of the main switch unit 14 and outputting an analog voltage of an automobile battery for the dc charging pile, and is used for changing an insulation resistance of a load loaded on the dc charging pile under the control of the test switch unit 15, detecting charging information of the dc charging pile, and communicating with the dc charging pile.
As shown in fig. 3, in the present embodiment, the internal appliance tray 17 includes:
the analog battery power supply unit 171 is connected with the main switch unit 14, is connected to the 220V alternating-current power supply or disconnected from the power supply according to the control of the main switch unit 14, and is further used for outputting the analog voltage of the automobile battery for the detection of the direct-current charging pile when the power supply is connected and the direct-current charging pile testing device 10 and the direct-current charging pile are successfully charged and handshake is carried out;
an insulation detecting unit 172 connected to the test switch unit 15, for changing an insulation resistance of a load loaded on the dc charging pile according to a control of the test switch unit 15;
a dc power detection unit 173 for detecting the voltage and current output by the dc charging pile;
a first connection confirmation signal detection unit 174, configured to detect a voltage output by the dc charging pile at a first connection confirmation signal communication end;
an auxiliary power supply detection unit 175 for detecting an auxiliary power supply provided by the dc charging pile;
a monitoring unit 176, which is respectively connected to the analog battery power supply unit 171, the dc power supply detection unit 173, the first connection confirmation signal detection unit 174, the auxiliary power supply detection unit 175, and the touch screen 13, for controlling the analog battery power supply unit 171 to change the output analog voltage of the car battery, for outputting the detected voltage and current output by the dc charging pile to the touch screen 13 for display, for determining whether the dc charging pile testing device is connected to the dc charging pile according to the detected voltage output by the dc charging pile at the first connection confirmation signal communication terminal, for determining whether the dc charging pile correctly provides the auxiliary power supply according to the detected auxiliary power supply, and for communicating with the dc charging pile through a CAN protocol to send a message to the dc charging pile and setting the message according to the input information received by the touch screen 13, the content of the message includes vehicle parameters and charging data.
The automobile parameters and the charging data comprise necessary options specified in the national standard and can also comprise unnecessary options specified in the national standard. The operator can operate the touch screen 13 to perform equipment on the content of the message and the period of sending the message, and the monitoring unit 176 sets the content of the message or the period of sending the message according to the corresponding input information received by the touch screen 13.
Preferably, the monitoring unit 176 includes a BMS simulator and a monitoring module, wherein the BMS simulator is configured to communicate with the dc charging pile through a CAN protocol to send a message to the dc charging pile, and the content of the message includes the vehicle parameter and the charging data. The monitoring module is respectively connected with the analog battery power supply unit 171, the direct current power supply detection unit 173, the first connection confirmation signal detection unit 174, the auxiliary power supply detection unit 175, the touch screen 13 and the BMS simulator, and is used for controlling the analog battery power supply unit 171 to change the output analog voltage of the automobile battery, outputting the detected voltage and current output by the direct current charging pile to the touch screen 13 for displaying, judging whether the direct current charging pile testing device 10 is connected with the direct current charging pile according to the detected voltage output by the direct current charging pile at the first connection confirmation signal communication end, judging whether the direct current charging pile correctly provides the auxiliary power supply according to the detected auxiliary power supply, and controlling the BMS simulator to set the message according to the input information received by the touch screen 13.
As shown in fig. 4, specifically, the analog battery power supply unit 171 is connected to a 220V ac power supply through the main switch unit 14, an output positive terminal of the analog battery power supply unit 171 is connected to the DC output positive terminal DC + of the charging gun holder 12, an output negative terminal of the analog battery power supply unit 171 is connected to the DC output negative terminal DC-of the charging gun holder 12, and a control signal input terminal of the analog battery power supply unit 171 is connected to the monitoring module.
The test switch unit 15 includes a first switch K1 and a second switch K2, and the insulation detecting unit 172 includes a first resistor R1 and a second resistor R2. One end of the first resistor R1 is connected to the DC output positive terminal DC + of the charging gun rest 12, and the other end is grounded through the first switch K1. One end of the second resistor R2 is connected to the DC output negative terminal DC-of the charging gun rest 12, and the other end is grounded through a second switch K2. The resistance values of the first resistor R1 and the second resistor R2 are 10K omega to 10m omega, and before the charging pile is started to charge, the insulation of a battery or an automobile to the ground is simulated through the combination of the first switch K1 and the second switch K2. When the first switch K1 is closed and the second switch K2 is opened, the insulation of the DC output positive terminal DC + to the ground is tested, and when the first switch K1 is opened and the second switch K2 is closed, the insulation of the DC output negative terminal DC-to the ground is tested, and if only one insulation test is not performed, the insulation test of the DC charging pile cannot pass. In this embodiment, the first switch K1 and the second switch K2 may be manually controlled to be turned on and off, when the first switch K1 is turned on and the second switch K2 is turned off, the dc charging pile detects the insulation resistance of the load, compares the detected insulation resistance value with the insulation detection voltage 100 ohms, and if the detected insulation resistance value is smaller than the insulation detection voltage 100 ohms, the dc charging pile needs to report a fault and stops charging. When the first switch K1 is turned off and the second switch K2 is turned on, the dc charging pile detects the insulation resistance of the load, compares the detected insulation resistance with the insulation detection voltage 100 ohms, and stops charging if the detected insulation resistance is less than the insulation detection voltage 100 ohms. If in above-mentioned two kinds of circumstances, direct current fills electric pile and does not report the trouble when having at least one kind condition, then direct current fills electric pile's insulation test can not pass.
Two sampling ends of the direct current power supply detection unit 173 are respectively connected to a direct current output positive end DC + and a direct current output negative end DC-of the charging gun seat 12, and an output end of the direct current power supply detection unit 173 is connected with the monitoring module.
The sampling terminal of the first connection confirmation signal detection unit 174 is connected to the first connection signal communication terminal CC1 of the charging gun rest 12, and the output terminal thereof is connected to the monitoring module.
The two sampling terminals of the auxiliary power supply detection unit 175 are respectively connected to the auxiliary power supply positive terminal a + and the auxiliary power supply negative terminal a-of the charging gun seat 12, and the output terminal thereof is connected to the monitoring module.
The positive interface of CAN bus communication of BMS simulator is connected with the positive end S + of CAN bus communication of the charging gun base 12, the negative interface of CAN bus communication of BMS simulator is connected with the negative end S-of CAN bus communication of the charging gun base 12, and the signal input/output end of BMS simulator is connected with the monitoring module.
The monitoring module adopts an ARM series chip as a main control chip, manages various data and switches the analog battery power supply unit 171.
In the preferred embodiment, the internal appliance tray 17 further comprises a switching unit connected between the positive DC output terminal DC + of the charging gun rest 12 and the positive terminal of the load, the switching unit comprising a first DC contactor KM1 and/or a second DC contactor KM2 connected between the negative DC output terminal DC-of the charging gun rest 12 and the negative terminal of the load. The internal electrical panel 17 further comprises a fuse FU connected between the positive DC output terminal DC + of the charging gun rest 12 and the positive terminal of the load, and a shunt FL connected between the negative DC output terminal DC-of the charging gun rest 12 and the negative terminal of the load. When the testing device 10 is in normal communication charging with the direct-current charging pile, the first direct-current contactor KM1 or the second direct-current contactor KM2 is loaded for use under the control of the monitoring module, the rated current of the first direct-current contactor KM1 or the second direct-current contactor KM2 is 50-250A, and the rated voltage of the first direct-current contactor KM2 is 500-1000V.
In this embodiment, the charging gun seats 12 are arranged and wired according to the national standard, the dc charging pile is connected to the testing device 10 through the charging gun head 12, and the charging may need to be started many times during the testing process.
In a first embodiment of the dc charging post testing system of the present invention, the testing system comprises the dc charging post testing device 10 and the load 20 as described in the above embodiments.
Referring to fig. 5 and 6, the load 20 includes a housing 21, and the housing 21 includes a top cover plate 211, a bottom cover plate 212, a first side cover plate 213, a second side cover plate 214, a third cover plate (which is opposite to the first cover plate 213), and a fourth cover plate (which is opposite to the second cover plate 214). The first side cover plate 213 has one or more fan mounting locations 213-a (4 mounting locations 213-a are shown in fig. 5) for mounting a fan (not shown). The top sealing plate 211 is provided with a load power supply input port 211-a for connecting with a load power supply output port 111-f of the direct current charging pile testing device 10, a fan power supply input port 211-b for accessing the direct current charging pile testing device 10 to obtain power supply, a fan switch 22 electrically connected with the fan power supply input port 211-b and one or more fans 22, and a mounting position 23 of a load handle.
The load 20 may be a resistive, capacitive, electronic, or feedback load. In other embodiments, the dc charging post test system may include a plurality of loads 20 connected in series.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A direct current charging pile testing device is used for loading a load to a direct current charging pile or controlling the load to be disconnected with the direct current charging pile, and is characterized by comprising a case, a charging gun seat, a touch screen, a main switch unit, a test interface unit and an internal electric appliance disc, wherein the charging gun seat, the touch screen, the main switch unit, the test interface unit and the internal electric appliance disc are arranged on the same side sealing plate or different side sealing plates of the case; the direct current charging pile testing device is connected into the direct current charging pile through the charging gun seat; the test interface unit comprises a pair of auxiliary power supply test interfaces respectively connected with an auxiliary power supply positive end A + and an auxiliary power supply negative end A-of the charging gun holder, a pair of CAN bus communication test interfaces respectively connected with a CAN bus communication positive end S + and a CAN bus communication negative end S-of the charging gun holder, and a pair of second connection confirmation signal test interfaces respectively connected with a second connection confirmation signal terminal CC2 and a grounding terminal PE of the charging gun holder; a groove for mounting the touch screen and the internal electric appliance disc is formed in one side sealing plate of the case, the internal electric appliance disc is fixedly arranged at the bottom of the groove, and the touch screen is fixedly mounted at an opening of the groove; the utility model discloses a direct current charging pile, including inside electrical apparatus dish, test switch unit, charging gun, touch screen, main switch unit and test switch unit electricity, inside electrical apparatus dish respectively with the rifle that charges, the touch screen the main switch unit and the test switch unit electricity is connected, inside electrical apparatus dish is used for being in the analog voltage of inserting the power and for direct current charging pile output car battery under the control of main switch unit is used for changing the insulation resistance of the load that loads on the direct current charging pile under the control of test switch unit for detect the charging information of direct current charging pile, still be used for with direct current charging pile communicates.
2. The dc charging pile testing device according to claim 1, wherein the internal appliance tray includes:
the analog battery power supply unit is connected with the main switch unit, is controlled to be connected into or disconnected from a power supply according to the main switch unit, and is also used for outputting analog voltage of an automobile battery to be detected by the direct current charging pile when the power supply is connected and the direct current charging pile testing device and the direct current charging pile are successfully charged and handshake;
the insulation detection unit is connected with the test switch unit and used for changing the insulation resistance of the load loaded on the direct current charging pile according to the control of the test switch unit;
the direct current power supply detection unit is used for detecting the voltage and the current output by the direct current charging pile;
the first connection confirmation signal detection unit is used for detecting the voltage output by the direct current charging pile at a first connection confirmation signal communication end;
the auxiliary power supply detection unit is used for detecting an auxiliary power supply provided by the direct current charging pile;
a monitoring unit connected to the analog battery power supply unit, the dc power supply detection unit, the first connection confirmation signal detection unit, the auxiliary power supply detection unit, and the touch screen, respectively, for controlling the analog battery power supply unit to change the output analog voltage of the car battery, for outputting the detected voltage and current output by the dc charging pile to the touch screen for display, for determining whether the dc charging pile testing device is connected to the dc charging pile according to the detected voltage output by the dc charging pile at the first connection confirmation signal communication terminal, for determining whether the dc charging pile correctly provides the auxiliary power supply according to the detected auxiliary power supply, and for communicating with the dc charging pile through a CAN protocol to send a message to the dc charging pile and setting the charging pile message according to the input information received by the touch screen, the content of the message includes vehicle parameters and charging data.
3. The dc charging pile testing device according to claim 2, wherein the monitoring unit comprises:
the BMS simulator is used for communicating with the direct current charging pile through a CAN protocol so as to send a message to the direct current charging pile, and the content of the message comprises automobile parameters and charging data;
a monitoring module respectively connected with the analog battery power supply unit, the DC power supply detection unit, the first connection confirmation signal detection unit, the auxiliary power supply detection unit, the touch display unit and the BMS simulator, the analog battery power supply unit is used for controlling the analog battery power supply unit to change the output analog voltage of the automobile battery, and is used for outputting the detected voltage and current output by the direct current charging pile to the touch screen for display, used for judging whether the direct current charging pile testing device is connected with the direct current charging pile or not according to the detected voltage output by the direct current charging pile at the first connection confirmation signal communication end, and the BMS simulator is used for judging whether the direct current charging pile correctly provides the auxiliary power supply according to the detected auxiliary power supply and controlling the BMS simulator to set the message according to the input information received by the touch screen.
4. The direct current charging pile testing device according to claim 3, wherein the test switch unit includes a first switch K1 and a second switch K2; the insulation detecting unit includes a first resistor R1 and a second resistor R2; one end of the first resistor R1 is connected to the DC output positive terminal DC + of the charging gun seat, and the other end is grounded through the first switch K1; one end of the second resistor R2 is connected to the DC output negative pole terminal DC-of the charging gun seat, and the other end is grounded through the second switch K2.
5. The direct-current charging pile testing device according to claim 4, wherein an input end of the analog battery power supply unit is connected to a 220V alternating-current power supply through the main switch unit, an output positive end of the analog battery power supply unit is connected with a direct-current output positive end DC + of the charging gun base, an output negative end of the analog battery power supply unit is connected with a direct-current output negative end DC-of the charging gun base, and a control signal input end of the analog battery power supply is connected with the monitoring module;
two sampling ends of the direct-current power supply detection unit are respectively connected to a direct-current output positive end DC + and a direct-current output negative end DC-of the charging gun seat, and an output end of the direct-current power supply detection unit is connected with the monitoring module;
the sampling end of the first connection confirmation signal detection unit is connected to a first connection signal communication end CC1 of the charging gun holder, and the output end of the first connection confirmation signal detection unit is connected with the monitoring module;
two sampling ends of the auxiliary power supply detection unit are respectively connected to an auxiliary power supply positive end A + and an auxiliary power supply negative end A-of the charging gun seat, and an output end of the auxiliary power supply detection unit is connected with the monitoring module;
the positive interface of CAN bus communication of BMS simulator is connected with the positive terminal S + of CAN bus communication of rifle seat charges, the negative interface of CAN bus communication of BMS simulator is connected with the negative terminal S-of CAN bus communication of rifle seat charges, the signal input/output end of BMS simulator with the monitor module is connected.
6. The direct current charging post testing device according to claim 5, wherein the internal electrical panel further comprises a first direct current contactor KM1 connected between the positive direct current output terminal DC + of the charging gun holder and the positive terminal of the load and/or a second direct current contactor KM2 connected between the negative direct current output terminal DC-of the charging gun holder and the negative terminal of the load;
and the internal electrical appliance panel further comprises a fuse FU connected between the direct current output positive terminal DC + of the charging gun seat and the positive terminal of the load, and a shunt FL connected between the direct current output negative terminal DC-of the charging gun seat and the negative terminal of the load.
7. The direct-current charging pile testing device according to claim 6, wherein a standby mounting position of the test switch is further formed on a side sealing plate of the case, on which the test switch unit is mounted; and a standby installation position of the test interface is also arranged on one side sealing plate of the case, which is provided with the test interface unit.
8. The direct current charging pile testing device according to any one of claims 1 to 7, wherein the case comprises a front sealing plate, a rear sealing plate, a left sealing plate, a right sealing plate, an upper sealing plate and a lower sealing plate; the charging gun seat, the touch screen, the main switch unit, the test interface unit and the internal electric appliance disc are arranged on a front sealing plate of the case; the left sealing plate of the case is provided with a load power supply output port for accessing and supplying power to a load and a fan power supply output port for supplying power to a fan of the load.
9. A dc charging pile testing system comprising a load, characterized in that the dc charging pile testing system further comprises the dc charging pile testing apparatus of claim 8.
10. The dc charging post testing system of claim 9, wherein the load comprises a housing comprising a top closure plate, a bottom closure plate, a first side closure plate, a second side closure plate, a third side closure plate, and a fourth side closure plate; one or more fans are arranged on the first side sealing plate; the top sealing plate is provided with a load power supply input port, a fan switch and a load handle installation position, wherein the load power supply input port is used for being connected with a load power supply output port of the direct current charging pile testing device, the fan power supply input port is used for being connected with the direct current charging pile testing device to obtain a power supply, and the fan switch and the load handle installation position are respectively electrically connected with the fan power supply input port and the one or more fans.
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| CN201920865368.2U CN210270021U (en) | 2019-06-06 | 2019-06-06 | Direct current fills electric pile testing arrangement and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856302A (en) * | 2020-07-03 | 2020-10-30 | 深圳市赛特新能科技有限公司 | Electric automobile charging interoperability testing system and method |
| CN112305384A (en) * | 2020-10-14 | 2021-02-02 | 许继电源有限公司 | Charging pile multiple insulation detection control method and system |
| CN114043893A (en) * | 2021-11-11 | 2022-02-15 | 福建星云电子股份有限公司 | Charging pile with remote voltage sampling compensation function |
| CN117491761A (en) * | 2023-09-04 | 2024-02-02 | 吉事励电子(苏州)有限公司 | DC charging pile testing device and testing method |
-
2019
- 2019-06-06 CN CN201920865368.2U patent/CN210270021U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856302A (en) * | 2020-07-03 | 2020-10-30 | 深圳市赛特新能科技有限公司 | Electric automobile charging interoperability testing system and method |
| CN112305384A (en) * | 2020-10-14 | 2021-02-02 | 许继电源有限公司 | Charging pile multiple insulation detection control method and system |
| CN114043893A (en) * | 2021-11-11 | 2022-02-15 | 福建星云电子股份有限公司 | Charging pile with remote voltage sampling compensation function |
| CN117491761A (en) * | 2023-09-04 | 2024-02-02 | 吉事励电子(苏州)有限公司 | DC charging pile testing device and testing method |
| CN117491761B (en) * | 2023-09-04 | 2024-05-03 | 吉事励电子(苏州)有限公司 | DC charging pile testing device and testing method |
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