Charging pile plug temperature rise testing device with deflection function
The charging pile plug temperature rise test device addresses the lack of deflection simulation in existing devices by incorporating a driving module and pressure module to simulate real-world offset scenarios, ensuring compliance with new safety standards and providing automated test data reporting.
Patent Information
- Application Number
- CN202421040390.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-13
AI Technical Summary
Existing temperature rise test devices for electric vehicle charging pile plugs do not account for the deflection or offsetting that occurs during actual use, making them unsuitable for new safety standards that require such simulations.
A charging pile plug temperature rise test device with a deflection function, featuring an environmental chamber, a driving module, and a pressure module that simulates real-world deflection scenarios by rotating the plug and applying forces, along with modules for voltage regulation, temperature acquisition, and data processing to generate test reports.
Enables simulation of real-world deflection scenarios, allowing compliance with new safety standards by performing offset testing and providing comprehensive test data through automated reporting.
Smart Images
Figure CN222212016U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of temperature rise test of electric vehicle charging piles, in particular to a charging pile plug temperature rise test device with a deflection function. Background Art
[0002] The electric vehicle charging pile is the charging device of the electric vehicle, and the temperature rise test of the charging pile plug (hereinafter referred to as the device under test) is an important test link to ensure that the plug part of the charging pile will not produce excessively high temperatures during the charging process. The temperature rise test of the charging pile plug is intended to evaluate the temperature change of the charging pile plug during continuous operation to ensure that it meets safety standards and prevent potential dangers caused by excessive temperatures. At present, the temperature rise test of the charging pile plug is mainly carried out using a high and low temperature environmental test chamber, such as the high and low temperature environmental chamber that can monitor the surface temperature of the sample disclosed in the Chinese patent announcement number CN212180582U. When this environmental chamber is used for temperature control, the charging pile plug can reach the test temperature, and then detect and record the temperature change of the plug part, and monitor the temperature data in real time. However, the new standards GB20234.1 and GB20234.4 have been proposed. These standards mainly add offset experiments. The offset experiment is based on the fact that the current charging pile plug is prone to pulling and offsetting during the charging process due to external forces in the actual use environment. Therefore, the current environmental chamber is only suitable for the temperature rise test of the charging pile, and the offset test of the charging pile plug cannot be performed.
[0003] Therefore, in view of the shortcomings of the prior art, it is necessary to provide a charging pile plug temperature rise test device with a deflection function to solve the shortcomings of the prior art. Utility Model Content
[0004] The purpose of the utility model is to avoid the shortcomings of the prior art and provide a charging pile plug temperature rise test device with a deflection function. The charging pile plug temperature rise test device with a deflection function can simulate the real deflection scene of the charging pile plug, can perform deflection testing, and can be applied to the new standard.
[0005] The above-mentioned purpose of the utility model is achieved through the following technical measures:
[0006] A charging pile plug temperature rise test device with a deflection function is provided, which is provided with an environmental chamber, wherein the environmental chamber is provided with a box body for providing a high and low temperature environment for a device under test, a connecting seat for fixing to a charging socket, and a driving module for driving the connecting seat and the device under test to deflect as a whole, the connecting seat and the driving module are both arranged inside the box body, and the connecting seat is connected to a transmission shaft of the driving module.
[0007] The charging pile plug temperature rise test device with a deflection function of the utility model is also provided with a pressure module for applying a force to the device under test. The pressure module is located inside the environmental chamber and is detachably assembled with the device under test.
[0008] Preferably, the pressure module is provided with a support frame, a counterweight, a buckle and a connecting piece, the support frame is arranged inside the box body, the counterweight is arranged above the support frame, the buckle is connected to the counterweight via a connecting piece, and the buckle is detachably assembled with the device under test.
[0009] When the deflection test is performed, the driving module drives the device under test to rotate, and the counterweight block is suspended in the air and applies a force to the device under test.
[0010] When a non-deflection test is performed, the counterweight is placed on the upper surface of the support frame, and the counterweight does not apply a force to the device under test.
[0011] Preferably, the connecting member is a connecting rod, one end of which is fixedly connected to the counterweight, and the other end of which is connected to the buckle.
[0012] Preferably, the buckle is provided with an upper buckle, a lower buckle and a rotating ball, one end of the upper buckle is hinged to one end of the lower buckle, the other end of the upper buckle is detachably assembled with the other end of the lower buckle, the rotating ball is rotatably embedded in the middle part of the lower buckle, and the rotating ball is rotatably assembled with the other end of the connecting rod.
[0013] Preferably, a pulley is provided at the bottom of the counterweight block.
[0014] The charging pile plug temperature rise test device with deflection function of the utility model is also provided with a voltage regulation and acquisition module for controlling the output voltage and current of the device under test and a circuit control module for controlling the output analog quantity of the voltage regulation and acquisition module and controlling the switch of the driving module. The input end of the voltage regulation and acquisition module is electrically connected to the input end of the driving module and the output end of the circuit control module respectively, and the voltage regulation and acquisition module is electrically connected to the device under test through the charging socket.
[0015] Preferably, the voltage regulation and acquisition module is provided with a power regulator, an isolation transformer and a regulating resistor, the input end of the power regulator is electrically connected to the input end of the circuit control module, the output end of the power regulator is electrically connected to the input end of the isolation transformer, the output end of the isolation transformer is electrically connected to the input end of the regulating resistor, and the output end of the regulating resistor is electrically connected to the charging socket.
[0016] Preferably, the circuit control module is provided with a relay module and an analog quantity module, the output end of the relay module is connected to the input end of the driving module, and the output end of the analog quantity module is connected to the input end of the voltage regulation and acquisition module.
[0017] The charging pile plug temperature rise test device with deflection function of the utility model is also provided with a low resistance acquisition module for acquiring the resistance value of the contact resistance of the device under test, and the input end of the low resistance acquisition module is electrically connected to the device under test.
[0018] The charging pile plug temperature rise test device with a deflection function of the utility model is further provided with a temperature acquisition module for acquiring the temperature of the device under test, and the input end of the temperature acquisition module is connected to the end of the device under test.
[0019] The temperature rise test device of the charging pile plug with deflection function of the utility model is also provided with a host computer for controlling the temperature rise test and generating a test report, a data acquisition module for collecting voltage data, temperature data and resistance current data, and a signal transmission module for sending the data of the data acquisition module to the host computer. The output end of the temperature acquisition module, the output end of the low resistance acquisition module and the output end of the regulating resistor are respectively electrically connected to the input end of the data acquisition module, the output end of the data acquisition module is electrically connected to the signal transmission module, the signal transmission module is signal-connected to the host computer, and the input end of the circuit control module is electrically connected to the host computer.
[0020] Preferably, the model of the power regulator is GJSCR3-50A, GJSCR3-100A, HW3-4-4-100-P or TPi-S-2-75-PACL.
[0021] Preferably, the model of the low resistance acquisition module is DAM655.
[0022] The utility model is a charging pile plug temperature rise test device with a deflection function, which is provided with an environmental chamber, wherein the environmental chamber is provided with a box body for providing a high and low temperature environment for the device under test, a connection seat for fixing with a charging socket, and a driving module for driving the connection seat and the device under test to deflect as a whole, wherein the connection seat and the driving module are both arranged inside the box body, and the connection seat is connected to the transmission shaft of the driving module. The driving module of the utility model drives the connection seat and the device under test to deflect as a whole, thereby being able to simulate the real offset scenario of the charging pile plug, being able to perform offset testing, and being applicable to the new standard. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.
[0024] Figure 1 This is a schematic diagram of the structure of the environmental chamber of Example 1.
[0025] Figure 2 Schematic diagram of the charging pile plug temperature rise test device after the box body hides part of the shell
[0026] Figure 3 This is a schematic diagram of the pressure module.
[0027] Figure 4 This is a connection diagram of the charging pile plug temperature rise test device of Example 2.
[0028] Figure 5 This is a schematic diagram of the structure of the buckle of Example 3.
[0029] Figure 6 A schematic cross-sectional view of the buckle.
[0030] Figure 7 for Figure 5 Schematic diagram of the structure after the buckle is opened.
[0031] Figure 8 It is a schematic diagram of the structure of the device under test and the pressure module during the non-deflection test.
[0032] Fig. 9 It is a schematic diagram of the structure of the device under test and the pressure module during the deflection test.
[0033] exist Figures 1 to 9 Including:
[0034] Box body 100, connection seat 200, drive module 300,
[0035] Pressure module 400,
[0036] Support frame 410, counterweight block 420, pulley 421,
[0037] Buckle 430, upper buckle 431, lower buckle 432, rotating ball 433,
[0038] Connector 440,
[0039] Device under test 500. DETAILED DESCRIPTION
[0040] The technical solution of the utility model is further described in conjunction with the following embodiments.
[0041] Example 1
[0042] A charging pile plug temperature rise test device with deflection function, such as Figure 1 and Figure 2As shown, an environmental chamber is provided, which includes a chamber body 100 for providing a high and low temperature environment for the device under test 500, a connecting seat 200 for fixing to a charging socket, and a driving module 300 for driving the connecting seat 200 and the device under test 500 to deflect as a whole. The connecting seat 200 and the driving module 300 are both arranged inside the chamber body 100, and the connecting seat 200 is connected to the transmission shaft of the driving module 300.
[0043] The charging pile plug temperature rise test device is also provided with a pressure module 400 for applying a force to the device under test 500. Figure 3 The pressure applying module 400 is located inside the environmental chamber and is detachably assembled with the device under test 500 .
[0044] The pressure module 400 is provided with a support frame 410, a counterweight block 420, a buckle 430 and a connecting piece 440. The support frame 410 is arranged inside the box body 100, and the counterweight block 420 is arranged above the support frame 410. The buckle 430 and the counterweight block 420 are connected through the connecting piece 440. The buckle 430 and the device under test 500 can be detachably assembled.
[0045] When the deflection test is performed, the driving module 300 drives the device under test 500 to rotate, and the counterweight 420 is suspended in the air and applies a force to the device under test 500 .
[0046] When a non-deflection test is performed, the counterweight 420 is placed on the upper surface of the support frame 410 , and the counterweight 420 does not apply a force to the device under test 500 .
[0047] It should be noted that when the temperature rise test device of the charging pile plug with deflection function of the utility model needs to perform an offset test, the driving module 300 drives the connecting seat 200 and the device under test 500 to rotate as a whole at a certain angle, such as 90°, etc. After the rotation, the horizontal height of the end of the test device is increased, so that the counterweight block 420 is lifted from the support frame 410, so that the counterweight block 420 is suspended in the air. At this time, the weight of the counterweight block 420 is applied to the test device, thereby better simulating the pulling and offset effect in reality. When only an ordinary temperature rise test is performed, the driving module 300 does not rotate, and the horizontal height of the end of the test device remains unchanged. The counterweight block 420 is naturally placed on the upper surface of the support frame 410, so the counterweight block 420 cannot have an effect on the test device.
[0048] The driving module 300 of the charging pile plug temperature rise test device with deflection function drives the connecting socket 200 and the device under test 500 to deflect as a whole, thereby simulating the real offset scenario of the charging pile plug, and can perform offset testing, which is applicable to the new standard.
[0049] Example 2
[0050] A charging pile plug temperature rise test device with deflection function, such as Figure 4 , other features are the same as those of Example 1, and also have the following features: a voltage regulation and acquisition module for controlling the output voltage and current of the device under test 500, a circuit control module for controlling the output analog quantity of the voltage regulation and acquisition module and controlling the switch of the drive module 300, a low resistance acquisition module for acquiring the resistance value of the contact resistance of the device under test 500, a temperature acquisition module for acquiring the temperature of the device under test 500, a host computer for controlling the temperature rise test and generating a test report, a data acquisition module for collecting voltage data, temperature data and resistance and current data, and a signal transmission module for sending the data of the data acquisition module to the host computer.
[0051] The input end of the voltage regulation and acquisition module is electrically connected to the input end of the driving module 300 and the output end of the circuit control module, respectively. The voltage regulation and acquisition module is electrically connected to the device under test 500 through the charging socket. The input end of the low resistance acquisition module is electrically connected to the device under test 500. The input end of the temperature acquisition module is connected to the end of the device under test 500. The output end of the temperature acquisition module, the output end of the low resistance acquisition module and the output end of the adjustment resistor are electrically connected to the input end of the data acquisition module, respectively. The output end of the data acquisition module is electrically connected to the signal transmission module, the signal transmission module is connected to the host computer signal, and the input end of the circuit control module is electrically connected to the host computer.
[0052] Among them, the voltage regulation and collection module is provided with a power regulator, an isolation transformer and a regulating resistor. The input end of the power regulator is electrically connected to the input end of the circuit control module, the output end of the power regulator is electrically connected to the input end of the isolation transformer, the output end of the isolation transformer is electrically connected to the input end of the regulating resistor, and the output end of the regulating resistor is electrically connected to the charging socket.
[0053] The circuit control module is provided with a relay module and an analog quantity module. The output end of the relay module is connected to the input end of the driving module 300 , and the output end of the analog quantity module is connected to the input end of the voltage regulation and acquisition module.
[0054] The working principle of the utility model is as follows: the function of the circuit control module is to control the circuit of the entire device, wherein the function of the analog quantity module is to output two analog quantities to the device under test 500. The voltage regulation and acquisition module amplifies the signal after receiving the voltage signal sent by the circuit control module, wherein the function of the power regulator and the isolation transformer is to adjust the voltage and current of the device to achieve variable frequency regulation, thereby providing different loads to the device under test 500 during the temperature rise test, and adjusting the resistance to collect the voltage value. The function of the temperature acquisition module of the utility model is to collect the temperature of each contact of the device under test 500 through the thermocouple. The function of the low resistance acquisition module is to collect the contact resistance value of the device under test 500. The function of the upper computer is to control the temperature rise test, and process the collected temperature data, voltage data and resistance data to generate a test report.
[0055] It should be noted that the power regulator, low resistance acquisition module, data acquisition module, analog module, signal transmission module, isolation transformer, relay module and regulating resistor of the utility model are all common functional modules or devices in the field, so those skilled in the art should know the working principle, connection method and model selection of the functional modules or devices. Some model examples are provided below for reference, but they are not equivalent to the limitation of the above modules or devices of the utility model, such as the model of the power regulator is GJSCR3-50A, GJSCR3-100A, HW3-4-4-100-P or TPi-S-2-75-PACL. The model of the low resistance acquisition module is DAM655. The model of the data acquisition module is PCM-3718HG or DAM3158A, etc., the model of the temperature acquisition module is IBF25-485, ZAM6218A, etc., the model of the analog module is FX2N-4DA, etc., the model of the isolation transformer is SBK-3KVA or SG-5KVA, etc.; the model of the signal transmission module is WPL-203, etc.
[0056] Compared with Example 1, this embodiment has automatic testing and test data processing functions and obtains a test report.
[0057] Example 3
[0058] A charging pile plug temperature rise test device with deflection function, such as Figures 5 to 7 , other features are the same as those of Example 1, and also have the following features: the connecting member is a connecting rod, one end of the connecting rod is fixedly connected to the counterweight block, and the other end of the connecting rod is connected to the buckle.
[0059] The buckle is provided with an upper buckle 431, a lower buckle 432 and a rotating ball 433, one end of the upper buckle 431 is hinged to one end of the lower buckle 432, the other end of the upper buckle 431 is detachably assembled with the other end of the lower buckle 432, a part of the rotating ball 433 is rotatably embedded in the interior of the lower buckle 432, and the other part of the rotating ball 433 protrudes from the outside of the lower buckle 432 and is rotatably assembled with the other end of the connecting rod.
[0060] It should be noted that when a non-deflection test is performed, the device under test 500 is perpendicular to the plane of the support frame 410, and the upper sub-button 431 and the lower sub-button 432 form an angle less than 90° with the connecting rod under the action of the rotating ball 433, and part or all of the weight is loaded on the connecting rod, and the counterweight 420 is placed on the support frame 410, so the weight of the buckle will not generate a load on the device under test 500, such as Figure 8 .
[0061] When the deflection test is performed, the device under test 500 is rotated 90°. At this time, the central axis of the device under test 500 is parallel to the plane of the support frame 410, and the central line of the buckle overlaps with the central axis of the connecting rod. The device under test 500 drives the buckle, connecting rod and counterweight 420 to be lifted as a whole, and the counterweight 420 is suspended in the air. Moreover, the entire weight of the buckle and counterweight 420 is loaded on the device under test 500. Fig. 9 .
[0062] In order to prevent the counterweight 420 from tilting due to the fixed connection between the connecting rod and the counterweight 420 when the central axis of the device under test 500 shifts from being parallel to the plane of the support frame 410 to being perpendicular to the plane of the support frame 410, the present embodiment adds a pulley 421 at the bottom of the counterweight 420 to reduce the friction between the support frame 410 and avoid the counterweight 420 from tilting.
[0063] Compared with the first embodiment, the present embodiment can reduce the load of the buckle ring 430 on the device under test 500 during the non-deflection test.
[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A charging pile plug temperature rise test device with deflection function, characterized in that: An environmental box is provided, which includes a box body for providing a high and low temperature environment for the device under test, a connecting seat for fixing to a charging socket, and a driving module for driving the connecting seat and the device under test to deflect as a whole, the connecting seat and the driving module are both arranged inside the box body, and the connecting seat is connected to the transmission shaft of the driving module.
2. The charging pile plug temperature rise test device with deflection function according to claim 1 is characterized in that: A pressure module for applying force to the device under test is also provided. The pressure module is located inside the environmental chamber and is detachably assembled with the device under test.
3. The charging pile plug temperature rise test device with deflection function according to claim 2 is characterized in that: The pressure module is provided with a support frame, a counterweight, a buckle and a connecting piece, the support frame is arranged inside the box body, the counterweight is arranged above the support frame, the buckle is connected to the counterweight through a connecting piece, and the buckle is detachably assembled with the device under test; When the deflection test is performed, the driving module drives the device under test to rotate, and the counterweight is suspended in the air; When performing a non-deflection test, the counterweight is placed on the upper surface of the support frame.
4. The charging pile plug temperature rise test device with deflection function according to claim 3 is characterized in that: The connecting member is a connecting rod, one end of which is fixedly connected to the counterweight, and the other end of which is connected to the buckle; The buckle ring is provided with an upper buckle, a lower buckle and a rotating ball, one end of the upper buckle is hinged with one end of the lower buckle, the other end of the upper buckle is detachably assembled with the other end of the lower buckle, a part of the rotating ball is rotatably embedded in the interior of the lower buckle, and the other part of the rotating ball protrudes from the outside of the lower buckle and is rotatably assembled with the other end of the connecting rod; A pulley is arranged at the bottom of the counterweight block.
5. The charging pile plug temperature rise test device with deflection function according to any one of claims 1 to 4, characterized in that: A voltage regulation and acquisition module for controlling the output voltage and current of the device under test and a circuit control module for controlling the output analog quantity of the voltage regulation and acquisition module and controlling the switch of the driving module are also provided. The input end of the voltage regulation and acquisition module is electrically connected to the input end of the driving module and the output end of the circuit control module respectively. The voltage regulation and acquisition module is electrically connected to the device under test through a charging socket.
6. The charging pile plug temperature rise test device with deflection function according to claim 5, characterized in that: The voltage regulation and acquisition module is provided with a power regulator, an isolation transformer and a regulating resistor. The input end of the power regulator is electrically connected to the input end of the circuit control module, the output end of the power regulator is electrically connected to the input end of the isolation transformer, the output end of the isolation transformer is electrically connected to the input end of the regulating resistor, and the output end of the regulating resistor is electrically connected to the charging socket.
7. The charging pile plug temperature rise test device with deflection function according to claim 6, characterized in that: The circuit control module is provided with a relay module and an analog quantity module. The output end of the relay module is connected to the input end of the driving module, and the output end of the analog quantity module is connected to the input end of the voltage regulation and acquisition module.
8. The charging pile plug temperature rise test device with deflection function according to claim 7, characterized in that: A low resistance acquisition module for acquiring the resistance value of the contact resistance of the device under test is also provided, and an input end of the low resistance acquisition module is electrically connected to the device under test.
9. The charging pile plug temperature rise test device with deflection function according to claim 8, characterized in that: A temperature acquisition module for acquiring the temperature of the device under test is also provided, and an input end of the temperature acquisition module is connected to an end of the device under test.
10. The charging pile plug temperature rise test device with deflection function according to claim 9, characterized in that: A host computer for controlling the temperature rise test and generating a test report is also provided, a data acquisition module for collecting voltage data, temperature data and resistance current data, and a signal transmission module for sending the data of the data acquisition module to the host computer. The output end of the temperature acquisition module, the output end of the low resistance acquisition module and the output end of the regulating resistor are electrically connected to the input end of the data acquisition module respectively, the output end of the data acquisition module is electrically connected to the signal transmission module, the signal transmission module is signal-connected to the host computer, and the input end of the circuit control module is electrically connected to the host computer; The model of the power regulator is GJSCR3-50A, GJSCR3-100A, HW3-4-4-100-P or TPi-S-2-75-PACL; The model of the low resistance acquisition module is DAM655.