CN220855062U - Load built-in self-adaptive temperature control heat dissipation type charging pile testing device - Google Patents
Load built-in self-adaptive temperature control heat dissipation type charging pile testing device Download PDFInfo
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- CN220855062U CN220855062U CN202322758317.9U CN202322758317U CN220855062U CN 220855062 U CN220855062 U CN 220855062U CN 202322758317 U CN202322758317 U CN 202322758317U CN 220855062 U CN220855062 U CN 220855062U
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- charging pile
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 30
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 21
- 230000001502 supplementing effect Effects 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 11
- 230000003044 adaptive effect Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
- 102100031786 Adiponectin Human genes 0.000 description 1
- 101000775469 Homo sapiens Adiponectin Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The utility model discloses a load built-in self-adaptive temperature control heat dissipation type charging pile testing device, which comprises: the upper part of the front end surface of the box body is provided with a first working surface, the first working surface is provided with a test input gun seat, the upper part of the rear end surface of the box body is provided with a second working surface, the second working surface is provided with a test output gun seat, and the upper part of one end of the support frame far away from the test input gun seat is provided with a high-current lithium battery pack; the high-current lithium battery pack is used for supplementing power by utilizing the output voltage of the commercial power or the charging pile; the box body is provided with a support frame in the area below the test input gun seat, the lower part of the front end surface of the box body is provided with a heat dissipation hole, and the lower part of the box body is provided with a fan; the main control module is used for being electrically connected with the fan, is used for loading a resistive load to simulate charging current when no external power supply exists, and starts the fan to run and dissipate heat by using the charging voltage of the high-current lithium battery pack.
Description
Technical Field
The utility model relates to the field of production of load built-in self-adaptive temperature control heat dissipation type charging pile testing devices, in particular to a load built-in self-adaptive temperature control heat dissipation type charging pile testing device.
Background
The existing verification equipment is generally divided into two types, wherein one type is split verification equipment with a portable field calibrator and a load box matched, and the other type is integrated verification equipment with a built-in load. By adopting the resistive load to simulate the charging current, the high heat with the same power is generated, and the existing mode is forced air cooling and heat dissipation through a fan.
Because the existing heat dissipation is carried out by virtue of the fan, the temperature in the load box is generally as high as one hundred ℃, and the existing test needs to be externally connected with a working power supply on site, so that the fan can continue to operate for heat dissipation after the charging test is finished.
The method solves the defect that some charging pile stations cannot be externally connected to take power, but other problems are brought about, for example, after a plurality of charging piles are started, the whole station can redistribute power, so that the output voltage of the charging piles is slowly output from zero again, and the lowest starting voltage of the charging of the gun head is more than 200V, so that the load box fan cannot be started at the moment and cannot radiate heat. The other problem is that after the test is finished, the charging pile stops outputting, the load box cooling fan is powered off and immediately stops rotating, and at the moment, high heat in the load box cannot be discharged out of the load box, so that the temperature in the load box is too high, and the service lives of the resistor module, the control circuit board and other components are influenced in the past for a long time.
Disclosure of Invention
Aiming at the problems, the utility model provides a load built-in self-adaptive temperature control heat dissipation type charging pile testing device, which solves the defects that the service life of a load box is greatly shortened and the performance of equipment devices is influenced by waste heat because the charging pile output voltage can only be used for taking electricity under the condition that the traditional equipment has no external commercial power and the load box cannot effectively dissipate heat after the testing is completed.
The technical scheme adopted by the utility model is as follows:
A load built-in self-adaptive temperature control heat dissipation type charging pile testing device comprises: the upper part of the front end surface of the box body is provided with an inclined first working surface, the first working surface is provided with a test input gun seat, the upper part of the rear end surface of the box body is provided with a second working surface, the second working surface is provided with a test output gun seat, and the upper part of one end of the support frame far away from the test input gun seat is provided with a high-current lithium battery pack; the high-current lithium battery pack is used for supplementing electricity by utilizing the output voltage of the commercial power or the charging pile; the box body is provided with a supporting frame in the area below the test input gun seat, the lower part of the front end surface of the box body is provided with a heat dissipation hole, and the lower part of the box body is provided with a fan;
The main control module is used for being electrically connected with the fan, is used for loading a resistive load to simulate charging current when no external power supply exists, and starts the fan to run and dissipate heat by using the charging voltage of the high-current lithium battery pack.
Optionally, a bluetooth communication module is further disposed in the box below the supporting frame.
Optionally, the bluetooth communication module is installed in the outside of main control module.
Optionally, the main control module is located at one side close to the front end face of the box body.
Optionally, a protection module is further arranged in the box body below the supporting frame.
Optionally, the adaptive power conversion module is installed above the protection module.
Optionally, a gear relay is arranged on the upper part of one end of the support frame, which is close to the test input gun seat.
Optionally, the self-adaptive power supply conversion module is located at one side of the rear end face of the box body, and a power supply module is installed between the main control module and the self-adaptive power supply conversion module.
Optionally, the box is also provided with a built-in load, a temperature control module is arranged in the built-in load, the temperature control module is electrically connected with the main control module, the temperature control module is used for acquiring temperature signals in the box body and transmitting the signals to the main control module, and the main control module controls whether the fan works or not according to the temperature height.
(III) beneficial effects
1. According to the utility model, the high-current lithium battery pack is arranged, the main control module is used for loading the resistive load to simulate the charging current when no external power supply exists, and the fan is started to run and radiate by using the charging voltage of the high-current lithium battery pack, so that the problems that the service life of the load box is greatly shortened, and the performance of devices of the equipment is influenced by waste heat because the charging pile output voltage can only be used for taking electricity when the traditional equipment does not have external commercial power are solved; or the measurement of the actual working error is affected after the heat dissipation by using small voltage and small current. The device is convenient and lightweight, and has better accuracy and stability.
Description of the drawings:
Fig. 1 is a schematic diagram of a main control module of a load built-in adaptive temperature control heat dissipation type charging pile testing device according to embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram of the power module of the load built-in adaptive temperature control heat dissipation type charging pile testing device according to embodiment 1 of the present utility model;
FIG. 3 is a perspective view of a testing device for a load built-in adaptive temperature control heat dissipation type charging pile according to embodiment 1 of the present utility model;
fig. 4 is a reverse side structural diagram of a load built-in adaptive temperature control heat dissipation type charging pile test device according to embodiment 1 of the present utility model.
The reference numerals in the drawings are as follows:
1. The box, 2, first working face, 3, test input rifle seat, 4, the second working face, 5, test output rifle seat, 6, support frame, 7, gear relay, 8, heavy current lithium battery group, 9, main control module, 10, bluetooth communication module, 11, protection module, 12, self-adaptation power conversion module, 13, power module, 14, the louvre, 15, the fan, 16, current sensor, 17, built-in load.
The specific embodiment is as follows:
the present utility model will be described in detail with reference to the accompanying drawings.
Examples
As shown in fig. 1, 2, 3 and 4, the technical scheme adopted by the utility model is as follows:
A load built-in self-adaptive temperature control heat dissipation type charging pile testing device comprises: the box 1, terminal surface upper portion is equipped with the first working face 2 of slope before the box, be equipped with test input rifle seat 3 on the first working face, terminal surface upper portion is equipped with second working face 4 behind the box, be equipped with test output rifle seat 5 on the second working face, the box is located the region of test input rifle seat below and is equipped with support frame 6, the support frame is close to the one end upper portion of test input rifle seat and is equipped with gear relay 7, the support frame is kept away from one end upper portion of test input rifle seat and is equipped with heavy current lithium cell group 8, is located be equipped with master control module 9, bluetooth communication module 10, protection module 11 and self-adaptation power conversion module 12 in the box of support frame below, master control module is located and is close to terminal surface one side before the box, bluetooth communication module installs in master control module's outside, self-adaptation power conversion module is located terminal surface one side behind the box, install power module 13 between master control module and the master control module, self-adaptation power conversion module installs in the protection module top. The lower part of the front end face of the box body is provided with a heat dissipation hole 14, and the lower part of the box body is provided with a fan 15. A current sensor 16 is also provided in the housing. The high-current lithium battery pack is used for supplementing electricity by utilizing the output voltage of the commercial power or the charging pile.
The main control module is used for being electrically connected with the fan, is used for loading a resistive load to simulate charging current when no external power supply exists, and starts the fan to run and dissipate heat by using the charging voltage of the high-current lithium battery pack.
The box body is also provided with a built-in load 17, the built-in load is internally provided with a temperature control module, the temperature control module is electrically connected with a main control module, the temperature control module is used for acquiring temperature signals in the box body and transmitting the signals to the main control module, and the main control module controls whether the fan works or not according to the temperature height.
The test input gun mount in this embodiment: the method is in accordance with national standard GBT 20234.3-2015 and is used for connecting a charging gun head of a charging pile, collecting CC1 signals for handshake, starting the pile through CAN communication and inputting charging voltage of the charging pile.
Test output gun mount in this embodiment: the method is used for cascading expansion loads or connecting new energy electric vehicles, so that higher test power is obtained, and the test time is shortened.
The current sensor in this embodiment: the high-precision zero-flux transformer comprises three closed-loop iron cores, an excitation winding, a high-frequency compensation winding, a secondary compensation winding and the like, closed-loop zero-flux detection is adopted, and the weak magnetic field is detected by utilizing the nonlinear characteristic that the high-permeability iron cores can be saturated under square wave excitation. Has extremely high precision, zero point maladjustment of 10ppm at most and 2ppm, temperature drift coefficient of 0.1ppm/k, very good linearity and long-term stability. The measurement accuracy under large current is ensured.
Gear relay in this embodiment: the macro-generator HFE82V series high-voltage relay is adopted, the contact resistance is low and stable, the contact meets the IP67 protection level, and the mechanical durability is as high as 2x105 times. The switching device is used for switching different voltage gears and meets different requirements.
The main control module in this embodiment: the CPU adopts a megawatt 32F470ZIT core, an Arm cube-M4 core, the main frequency of the processor is up to 240MHz, the embedded application with higher algorithm complexity can be supported, the faster real-time processing capability is provided, and the advanced high-capacity storage advantage in the industry is provided. The high-speed performance of complex operation of the sampling part is ensured, the real-time performance of CAN communication is ensured, and the timeliness of measures is protected.
The power module in this embodiment: integrates power distribution and high-voltage analog output, power input of the lithium battery pack is distributed to other devices through a power module to supply power,
Bluetooth communication module in this embodiment: the SPP and BLE5.2 double analog-to-digital transmission module is adopted, SPP, GATT and HID protocols are supported simultaneously, UART and master-slave integrated serial ports are transmitted in a penetrating way, SPP speed can reach 50KB/s, and communication control is conveniently carried out by using equipment such as a computer, a tablet, a mobile phone and the like.
The high-current lithium battery pack in this embodiment: the battery cell with higher capacity is adopted, so that the battery pack has smaller volume, larger capacity and longer endurance. And larger overload current can drive larger load. The larger charging current can supply electric quantity more efficiently in a shorter time.
Built-in load in this embodiment: the lighter and smaller resistor band is adopted as the resistive real load, so that the larger load power is ensured in a limited space. The temperature control module is arranged in the load box, the temperature in the load box is monitored in real time through the main control module, the over-temperature is timely protected, and the service life of the resistor box and the safety of the device are effectively protected.
The protection module in this embodiment: the NTC and short-circuit relay combined mode type lithium battery pack overcurrent protection is adopted, and overcurrent protection of the lithium battery pack caused by overlarge surge current is prevented.
The adaptive power conversion module in this embodiment: the power supply is compatible with an ACDC module and a wide-range DCDC module, and is used for adaptively switching power supplies in the charging detection process to enable a fan to run and dissipate heat, wherein the input voltages are AC220V, DC200-1000V, DC8-36V and output DC 24V.
When the embodiment is implemented, after the handshake between the equipment and the charging pile is successful, whether external mains supply is available or not is self-detected, and if so, the cooling fan is started by the mains supply when the equipment and the charging pile interact with each other. If no external power supply exists, after the message interaction between the equipment and the charging pile is completed, the charging pile outputs charging voltage according to the agreed requirement, the equipment loads resistive load to simulate charging current, and the fan is started to operate by using the charging voltage to dissipate heat. At the moment, the device enters a normal charging detection link, the charging voltage, the charging current, the accumulated electric energy, the handshaking signals, the temperature of a load box and the like are measured in real time, and meanwhile, the power is supplied to the built-in lithium battery pack by utilizing the output voltage of the commercial power or the charging pile, so that the cruising ability of the device is improved. And when the accumulated electric energy reaches a preset value, the device actively stops charging and self-checks whether external commercial power is supplied at the moment, if so, the device continuously drives the fan to dissipate the residual heat in the load box by using the external commercial power, if not, the device automatically switches to the lithium battery to drive the fan to dissipate heat all the way, the device continuously monitors the temperature of an air outlet in the load box, and after the temperature is reduced to below 40 ℃ or continuously dissipates heat for 2 minutes, the heat dissipation fan is stopped, and the test is ended.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover all equivalent structures as modifications within the scope of the utility model, either directly or indirectly, as may be contemplated by the present utility model.
Claims (9)
1. The utility model provides a load embeds self-adaptation control by temperature change heat dissipation formula fills electric pile testing arrangement which characterized in that includes: the upper part of the front end surface of the box body is provided with an inclined first working surface, the first working surface is provided with a test input gun seat, the upper part of the rear end surface of the box body is provided with a second working surface, the second working surface is provided with a test output gun seat, and the upper part of one end of the support frame far away from the test input gun seat is provided with a high-current lithium battery pack; the high-current lithium battery pack is used for supplementing electricity by utilizing the output voltage of the commercial power or the charging pile; the box body is provided with a supporting frame in the area below the test input gun seat, the lower part of the front end surface of the box body is provided with a heat dissipation hole, and the lower part of the box body is provided with a fan;
The main control module is used for being electrically connected with the fan, is used for loading a resistive load to simulate charging current when no external power supply exists, and starts the fan to run and dissipate heat by using the charging voltage of the high-current lithium battery pack.
2. The load built-in self-adaptive temperature control heat dissipation type charging pile testing device according to claim 1, wherein a Bluetooth communication module is further arranged in a box body below the supporting frame.
3. The load built-in self-adaptive temperature control heat dissipation type charging pile testing device according to claim 2, wherein the Bluetooth communication module is arranged on the outer side of the main control module.
4. The load built-in adaptive temperature control heat dissipation type charging pile testing device according to claim 1, 2 or 3, wherein the main control module is located at one side close to the front end face of the box body.
5. The load built-in self-adaptive temperature control heat dissipation type charging pile testing device according to claim 4, wherein a protection module is further arranged in the box body below the supporting frame.
6. The load built-in adaptive temperature control heat dissipation type charging pile testing device according to claim 5, wherein the adaptive power conversion module is installed above the protection module.
7. The load built-in self-adaptive temperature control heat dissipation type charging pile testing device according to claim 1, 2 or 3, wherein a gear relay is arranged at the upper part of one end of the support frame, which is close to the test input gun seat.
8. The load built-in self-adaptive temperature control heat dissipation type charging pile testing device according to claim 1, 2 or 3, wherein the self-adaptive power supply conversion module is located at one side of the rear end face of the box body, and a power supply module is installed between the main control module and the self-adaptive power supply conversion module.
9. The load built-in self-adaptive temperature control heat dissipation type charging pile testing device according to claim 1, 2 or 3, wherein a built-in load is further arranged in the box body, a temperature control module is arranged in the built-in load, the temperature control module is electrically connected with the main control module, the temperature control module is used for acquiring a temperature signal in the box body and transmitting the temperature signal to the main control module, and the main control module controls whether the fan works or not according to the temperature height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322758317.9U CN220855062U (en) | 2023-10-16 | 2023-10-16 | Load built-in self-adaptive temperature control heat dissipation type charging pile testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322758317.9U CN220855062U (en) | 2023-10-16 | 2023-10-16 | Load built-in self-adaptive temperature control heat dissipation type charging pile testing device |
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| Publication Number | Publication Date |
|---|---|
| CN220855062U true CN220855062U (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322758317.9U Active CN220855062U (en) | 2023-10-16 | 2023-10-16 | Load built-in self-adaptive temperature control heat dissipation type charging pile testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220855062U (en) |
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2023
- 2023-10-16 CN CN202322758317.9U patent/CN220855062U/en active Active
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