A test apparatus, method and system for over-temperature charging

Abstract

The application provides a charging over-temperature test device, method and system, and relates to the technical field of charging. The device comprises a charging seat, a charging gun head, a cable, a cold and hot source and a controller. One side of the cable is provided with a first charging wire and a first liquid pipe, the other side of the cable is provided with a second charging wire and a second liquid pipe, the first charging wire and the second charging wire are electrically connected, the first charging wire is connected with the charging seat, the second charging wire is connected with the charging gun head, the first liquid pipe and the second liquid pipe are communicated with the cold and hot source, the charging seat is provided with a first temperature sensor, the charging gun head is provided with a second temperature sensor, the controller is connected with the first temperature sensor, the second temperature sensor and the cold and hot source, and the charging seat or the charging gun head appears an over-temperature phenomenon. The charging device or the device to be charged responds to determine an over-temperature test result. The over-temperature phenomenon under the real working condition makes the accuracy of the test result higher.

Description

Technical Field

[0001] This application relates to the field of charging technology, and more specifically, to a testing device, method, and system for overheating during charging. Background Technology

[0002] As the battery capacity of electric vehicles increases, the output current of the charging equipment is larger in order to reduce the charging time of the electric vehicle (the device to be charged). During the high-current charging process, the charging gun head in the charging equipment or the charging socket in the device to be charged is prone to overheating. Excessive temperature can damage the charging gun head in the charging equipment or the charging socket in the device to be charged. Therefore, both the charging equipment and the device to be charged are equipped with over-temperature protection to reduce the temperature or disconnect the charging connection when overheating occurs. In order to ensure the correctness of the over-temperature protection operation of the charging equipment and the device to be charged before actual production, the correctness test of its over-temperature protection operation needs to be carried out before production.

[0003] In existing technologies, the over-temperature threshold of the charging device and the device to be charged can be reduced by software methods, so that the charging device or the device to be charged can trigger over-temperature protection operation at normal temperature. Alternatively, the over-temperature protection operation of the charging device or the charging socket of the device to be charged can be triggered by increasing the contact resistance value of the charging gun head of the charging device or the charging socket of the device to be charged, thereby judging the correctness of the over-temperature protection operation. However, existing technologies lose the real working conditions, resulting in low accuracy of test results. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing a charging overheating test device, method, and system, thereby solving the technical problem that the inaccuracy of test results is due to the unrealistic working environment in the prior art during charging overheating testing.

[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:

[0006] In a first aspect, embodiments of this application provide a charging overheating test device, which includes: a charging base, a charging gun head, a cable, a heat source and a controller;

[0007] One side of the cable is provided with a first charging cable and a first liquid tube, and the other side of the cable is provided with a second charging cable and a second liquid tube. The first charging cable and the second charging cable are electrically connected. The first charging cable is also connected to the charging base, and the second charging cable is also connected to the charging gun head.

[0008] The first liquid tube and the second liquid tube are connected to the heat source; wherein, the charging base is provided with a first temperature sensor and the charging gun head is provided with a second temperature sensor; the controller is connected to the first temperature sensor and the second temperature sensor, and the controller is also connected to the heat source.

[0009] Optionally, the heat source includes: a first heat source and a second heat source;

[0010] The first liquid pipe is connected to the first cold and heat source, and the second liquid pipe is connected to the second cold and heat source; the controller is connected to the first cold and heat source and the second cold and heat source.

[0011] Optionally, the first liquid tube is disposed around the first charging cable;

[0012] The second liquid tube is disposed around the second charging cable.

[0013] Secondly, embodiments of this application provide a charging over-temperature testing method, which is applied to the controller in the charging over-temperature testing equipment described in the first aspect, and the method includes:

[0014] The heating temperature value corresponding to the target test device is determined based on the over-temperature threshold of the target test device; the target test device is a charging device or a device to be charged.

[0015] Based on the heating temperature value, the hot and cold sources of the test equipment are controlled to heat the liquid that is about to flow into the target liquid tube corresponding to the target charging interface connected to the target test equipment at a preset initial temperature to the heating temperature value.

[0016] The heat source is controlled to allow the heated liquid to flow into the target liquid tube corresponding to the target charging interface, so as to heat the target charging interface;

[0017] Obtain the temperature of the target charging interface detected by the temperature sensor installed in the target charging interface;

[0018] If the temperature of the target charging interface exceeds the over-temperature threshold, receive the over-temperature response information from the target test device;

[0019] Based on the over-temperature response information and the preset over-temperature response information of the target test equipment, the over-temperature test result of the target test equipment is obtained.

[0020] Optionally, controlling the heat source in the testing equipment to heat the liquid pre-flowing into the target liquid tube corresponding to the target charging interface connected to the target testing equipment from a preset initial temperature to the heating temperature value includes:

[0021] The target cold or heat source corresponding to the target charging interface connected to the target test device in the test equipment is controlled to heat the liquid at the preset initial temperature to the heating temperature value;

[0022] The method further includes:

[0023] If the temperature of the target charging interface does not exceed the over-temperature threshold, the heating temperature value is increased to obtain a new heating temperature value;

[0024] Based on the new heating temperature value, the target heat source is controlled to heat until the temperature of the target charging interface exceeds the over-temperature threshold.

[0025] Optionally, the method further includes:

[0026] If the temperature of the target charging interface does not exceed the over-temperature threshold within a preset time, it is determined that the target heat or cold source has malfunctioned.

[0027] Optionally, the method further includes:

[0028] The other heat source corresponding to another charging port in the test equipment is controlled to allow the liquid at the preset initial temperature to flow into the liquid tube in the cable connected to the other charging port.

[0029] Optionally, the over-temperature threshold includes: a first over-temperature threshold, and the step of receiving over-temperature response information from the target test device if the temperature of the target charging interface exceeds the over-temperature threshold includes:

[0030] If the temperature of the target charging interface exceeds the first over-temperature threshold, the charging current sent by the charging device is received;

[0031] The step of obtaining the over-temperature test result of the target test equipment based on the over-temperature response information and the preset over-temperature response information of the target test equipment includes:

[0032] If the charging current of the charging device decreases compared to the preset initial current value, then the over-temperature test result of the target test device is determined to be a successful test.

[0033] Optionally, the target testing device is a charging device, the target charging interface is a charging dock, and the over-temperature threshold further includes: a second over-temperature threshold; the step of receiving over-temperature response information from the target testing device if the temperature of the target charging interface exceeds the over-temperature threshold further includes:

[0034] If the temperature of the charging dock exceeds the second over-temperature threshold, the charging device receives the charging status of the charging dock in the charging device and the test device, and receives a first notification message from the device to be charged. The first notification message is a message sent by the device to be charged after receiving the charging stop message sent by the charging device.

[0035] The step of obtaining the over-temperature test result of the target test equipment based on the over-temperature response information and the preset over-temperature response information of the target test equipment includes:

[0036] If the charging state is "charging state", then the over-temperature test result of the charging device is determined to be: test failed.

[0037] If the charging state is not charging, and the first notification message matches the preset first message, then the over-temperature test result of the charging device is determined to be: test successful.

[0038] Optionally, the target test device is a device to be charged, the target charging interface is a charging gun head, and the over-temperature threshold further includes: a third over-temperature threshold;

[0039] If the temperature of the target charging interface exceeds the over-temperature threshold, the over-temperature response information from the target testing device is received, including:

[0040] If the temperature of the charging gun head exceeds the third over-temperature threshold, a second notification message is received from the charging device. The second notification message is sent by the charging device after receiving the charging stop message sent by the device to be charged. The charging device also receives the charging status of the charging device and the charging socket in the test device.

[0041] The step of obtaining the over-temperature test result of the target test equipment based on the over-temperature response information and the preset over-temperature response information of the target test equipment includes:

[0042] If the second notification message does not match the preset second message, then the over-temperature test result of the device to be charged is determined to be: test failed;

[0043] If the second notification message matches the preset second message, and the charging state is not charging, then the over-temperature test result of the device to be charged is determined to be: test successful.

[0044] Thirdly, embodiments of this application provide a testing system, which includes: a testing device, a charging device, and a device to be charged; the testing device is the charging overheat testing device described in the first aspect.

[0045] The charging device is connected to the device to be charged via the testing device.

[0046] Compared with the prior art, this application has the following beneficial effects:

[0047] This application provides a charging overheating testing device, method, and system. The charging overheating testing device includes: a charging base, a charging gun head, a cable, a heat source, and a controller. One side of the cable is provided with a first charging line and a first liquid tube, and the other side of the cable is provided with a second charging line and a second liquid tube. The first and second charging lines are electrically connected. The first charging line is also connected to the charging base, and the second charging line is also connected to the charging gun head. The first and second liquid tubes are connected to the heat source. A first temperature sensor is provided in the charging base, and a second temperature sensor is provided in the charging gun head. The controller is connected to the first and second temperature sensors and is also connected to the heat source. The controller can control the heat source to inject heated liquid into the first or second liquid tube, causing an overheating phenomenon in the charging base corresponding to the first liquid tube or the charging gun head corresponding to the second liquid tube. The overheating test result can be obtained based on the overheating response of the charging device corresponding to the charging base or the device to be charged corresponding to the charging gun head. The overheating phenomenon in this application is exactly the same as the overheating phenomenon under real working conditions, and the accuracy of the obtained test results is high. Attached Figure Description

[0048] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 A schematic diagram of the structure of a charging overheat testing device provided in an embodiment of this application;

[0050] Figure 2 A schematic diagram of another charging overheating test device provided in an embodiment of this application;

[0051] Figure 3 A schematic flowchart of a charging over-temperature test method provided in an embodiment of this application;

[0052] Figure 4 A flowchart illustrating another charging over-temperature testing method provided in this application embodiment;

[0053] Figure 5 A flowchart illustrating another charging over-temperature testing method provided in this application embodiment;

[0054] Figure 6A flowchart illustrating another charging over-temperature testing method provided in this application embodiment;

[0055] Figure 7 A flowchart illustrating another charging over-temperature testing method provided in this application embodiment;

[0056] Figure 8 This is a schematic diagram of the structure of a testing system provided in an embodiment of this application;

[0057] Figure 9 A schematic diagram of a charging over-temperature testing device provided in an embodiment of this application;

[0058] Figure 10 This is a schematic diagram of a controller provided in an embodiment of this application.

[0059] Icons: Charging dock 100; Charging gun head 200; Hot / cold source 500; Controller 600; First charging cable 301; Second charging cable 401; First liquid tube 302; Second liquid tube 402; First temperature sensor 101; Second temperature sensor 201; First hot / cold source 501; Second hot / cold source 502; Test equipment 10; Charging equipment 20; Device to be charged 30. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0061] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0062] In the description of this invention, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0063] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0064] In order to test for overheating during charging, existing technologies modify the software overheating threshold. This method directly changes the overheating protection strategy. However, in actual production and life, the modified overheating threshold will not cause overheating, thus deviating from the actual operating conditions. Increasing the contact resistance value is also deviating from the actual operating conditions. Therefore, the test environments corresponding to the test results in existing technologies are not real operating conditions, resulting in low accuracy of the test results.

[0065] To address the technical problem of low accuracy in charging over-temperature testing due to unrealistic operating conditions, this application provides a charging over-temperature testing device, method, and system. The charging over-temperature testing device causes the charging gun head of the charging device or the charging socket of the device to be charged to reach the over-temperature of the actual operating conditions, and then the test results of the charging device or the device to be charged are obtained based on the over-temperature response of the charging device or the device to be charged.

[0066] The following specific examples illustrate the charging overheating test device provided in the embodiments of this application. Figure 1 This is a schematic diagram of the structure of a charging overheat testing device provided in an embodiment of this application, as shown below. Figure 1 As shown, the overheating test equipment includes: a charging base 100, a charging gun head 200, cables, a heat source 500, and a controller 600.

[0067] One side of the cable is provided with a first charging cable 301, and the other side of the cable is provided with a second charging cable 401. The first charging cable 301 and the second charging cable 401 are electrically connected. The first charging cable 301 is also connected to the charging base 100, and the second charging cable is also connected to the charging gun head 200.

[0068] Optionally, the first charging cable 301 and the second charging cable 401 can be connected via copper busbars or terminal blocks.

[0069] The charging gun head of the charging equipment can be connected to the charging base 100, and the charging gun head 200 can be connected to the charging base of the device to be charged, so as to charge the device to be charged normally. The charging equipment can be a charging pile or other device that can discharge electricity, and the device to be charged can be an electric vehicle or other device that can be charged.

[0070] The charging overheating test equipment provided in this application can test the overheating phenomenon during the charging process. Therefore, before overheating, normal charging is required, and overheating can be simulated during the charging process.

[0071] The cable in this application is a liquid cooling cable. Therefore, a first liquid pipe 302 is also provided on one side of the cable. The first liquid pipe 302 is connected to the heat source 500. The liquid in the heat source 500 can flow into the inlet of the first liquid pipe 302 through the outlet of the heat source 500 connected to the first liquid pipe 302, and then flow into the heat source 500 through the outlet of the first liquid pipe 302 and the inlet of the heat source 500 connected to the first liquid pipe 302.

[0072] On the other side of the cable, there is also a second liquid pipe 402, which is also connected to the heat source 500. The liquid in the heat source 500 can flow into the inlet of the second liquid pipe 402 through the outlet of the heat source 500 connected to the second liquid pipe 402, and then flow into the heat source 500 through the outlet of the second liquid pipe 402 and the inlet of the heat source 500 connected to the second liquid pipe 402.

[0073] During normal charging, if the charging current is large, the first charging cable 301 and the second charging cable 401 will generate heat. Therefore, it is necessary to dissipate heat from the first charging cable 301 and the second charging cable 401. In this embodiment, the heat source 500 can transfer room temperature liquid or a lower temperature liquid to the first liquid pipe 302 so that the liquid carries away the heat generated by the first charging cable 301 during the charging process. The heat source 500 can also transfer room temperature liquid or a lower temperature liquid to the second liquid pipe 402 so that the liquid carries away the heat generated by the second charging cable 401 during the charging process, thereby ensuring high-current charging and safety during the charging process.

[0074] The charging overheating test device provided in this application embodiment can transfer heated liquid to the first liquid pipe 302 through the heat source 500 during the simulation of overheating, so that the temperature in the charging base 100 rises. Since the charging base 100 is connected to the charging gun head of the charging device during the charging process, the temperature of the charging gun head of the charging device also rises when the temperature of the charging base 100 rises. In other words, the overheating of the charging gun head of the charging device can be simulated during the charging process, and the overheating test can be performed based on the overheating response of the charging device.

[0075] The heated liquid can also be transferred to the second liquid pipe 402 through the heat source 500, causing the temperature in the charging gun head 200 to rise. Since the charging gun head 200 is connected to the charging socket of the device to be charged during the charging process, the temperature of the charging socket of the device to be charged will also rise when the temperature of the charging gun head 200 rises. This can simulate the over-temperature of the charging socket of the device to be charged during the charging process, and then the over-temperature test can be performed based on the over-temperature response of the device to be charged.

[0076] A first temperature sensor 101 is installed in the charging dock 100, and a second temperature sensor 201 is installed in the charging gun head 200. A controller 600 is connected to the first temperature sensor 101 and the second temperature sensor 201. The controller 600 can obtain the real-time temperatures of the charging dock 100 and the charging gun head 200 based on the first temperature sensor 101 and the second temperature sensor 201 to determine whether the charging dock 100 or the charging gun head 200 has reached an overheating value. If an overheating value is reached, a test result is obtained based on the overheating response of the current charging device or the device to be charged.

[0077] The controller 600 is also connected to a heat source 500. The controller 600 can control the heat source 500 to allow liquid to flow out, and the controller 600 can control the temperature of the liquid flowing out from the heat source 500. For example, the liquid flowing out can be a liquid at room temperature or a heated liquid; no specific limitation is made in this embodiment.

[0078] This application provides a charging overheating test device. The controller can control the hot and cold source to inject heated liquid into a first liquid tube or a second liquid tube, causing an overheating phenomenon in the charging socket corresponding to the first liquid tube or the charging gun head corresponding to the second liquid tube. Then, the overheating test result can be obtained based on the overheating response of the charging device corresponding to the charging socket or the device to be charged corresponding to the charging gun head. It can be seen that the overheating phenomenon in this application is exactly the same as the overheating phenomenon under real working conditions. Therefore, the accuracy of the obtained test results is high.

[0079] In the above Figure 1 Based on the schematic diagram of a charging over-temperature testing device shown, this application also provides another charging over-temperature testing device. Optionally, Figure 2 A schematic diagram of another charging overheat testing device provided in this application embodiment is shown below. Figure 2 As shown, the heat source 500 includes: a first heat source 501 and a second heat source 502.

[0080] The first liquid pipe 302 is connected to the first hot / cold source 501, and the second liquid pipe 402 is connected to the second hot / cold source 502.

[0081] The first heat source 501 can transfer room temperature liquid or lower temperature liquid to the first liquid pipe 302 for flow, so that the liquid carries away the heat of the first charging line 301 during the charging process. The second heat source 502 can transfer room temperature liquid or lower temperature liquid to the second liquid pipe 402 for flow, so that the liquid carries away the heat of the second charging line 401 during the charging process.

[0082] The charging overheating test device provided in this application embodiment can, when simulating overheating, transfer heated liquid to the first liquid pipe 302 through the first heat source 501 to increase the temperature in the charging base 100, and can also transfer heated liquid to the second liquid pipe 402 through the second heat source 502 to increase the temperature in the charging gun head 200. In this way, overheating test can be performed based on the overheating response of the charging device or the device to be charged.

[0083] The controller 600 is connected to a first heat source 501 and a second heat source 502. The controller 600 can control the liquid outflow from the first heat source 501 and can control the temperature of the liquid outflowing from the first heat source 500; the controller 600 can also control the liquid outflow from the second heat source 502 and can control the temperature of the liquid outflowing from the second heat source 502.

[0084] This application provides a charging overheating test device, which includes a first cold and heat source and a second cold and heat source. A first liquid pipe is connected to the first cold and heat source, and a second liquid pipe is connected to the second cold and heat source. A controller is connected to the first cold and heat source and the second cold and heat source to realize the flow and temperature of the liquid in the first cold and heat source and the flow and temperature of the liquid in the second cold and heat source through the controller.

[0085] In the above Figure 1 Based on the schematic diagram of a charging overheating test device shown, this application embodiment also provides another charging overheating test device. Optionally, a first liquid tube 302 is disposed around a first charging line 301, and a second liquid tube 402 is disposed around a second charging line 401.

[0086] For example, both the first liquid tube 302 and the second liquid tube 402 can be U-shaped structures. A portion of one U-shaped structure is in the charging base 100, which can make the temperature difference between the charging base 100 and the liquid temperature in the first liquid tube 302 smaller. A portion of the other U-shaped structure is in the charging gun head 200, which can make the temperature difference between the charging gun head 200 and the liquid temperature in the second liquid tube 402 smaller, making the occurrence of overheating more accurate.

[0087] In one embodiment, the position of the first liquid tube 302 can be within a preset range of the outer wall of the first charging cable 301, and the position of the second liquid tube 402 can be within a preset range of the outer wall of the second charging cable 401.

[0088] In another embodiment, the first charging cable 301 can be immersed in the liquid in the first liquid tube 302, and the second charging cable 401 can be immersed in the liquid in the second liquid tube 402.

[0089] Of course, the shape and position of the first liquid tube 302 and the second liquid tube 402 can be other than those specified in this embodiment.

[0090] This application provides a charging overheating test device, in which a first liquid tube is arranged around a first charging cable and a second liquid tube is arranged around a second charging cable, so that the temperature difference between the charging base and the liquid temperature in the first liquid tube is small, and the temperature difference between the charging gun head and the liquid temperature in the second liquid tube is small, making the occurrence of overheating more accurate.

[0091] In the above Figure 1 Based on the embodiments described above, this application also provides a charging over-temperature test method. Optionally, Figure 3 This is a flowchart illustrating a charging over-temperature testing method provided in an embodiment of this application, as shown below. Figure 3 As shown, this method is applied to the controller in a test device for overheating during charging. The method includes:

[0092] S301, determine the heating temperature value corresponding to the target test equipment based on the over-temperature threshold of the target test equipment.

[0093] In this embodiment of the application, when performing a charging over-temperature test, only one device can be tested for over-temperature at a time, while the other device remains in normal operation. Therefore, the target test device is the charging device or the device to be charged.

[0094] Obtain the over-temperature threshold of the target test equipment so that if the temperature of the target test equipment reaches or exceeds the over-temperature threshold, the target test equipment will respond to the over-temperature phenomenon under normal operating conditions.

[0095] Because the heated liquid loses heat as it flows through the liquid pipe, if it has been used...

[0096] For liquids exceeding the over-temperature threshold, the target test equipment's temperature will not reach the over-temperature threshold. Therefore, the heating temperature value corresponding to the target test equipment needs to be determined based on the over-temperature threshold. The heating temperature value must be greater than [a certain value].

[0097] Over-temperature threshold.

[0098] S302, based on the heating temperature value, controls the hot and cold sources in the test equipment to heat the liquid in the target liquid tube corresponding to the target charging interface connected to the target test equipment at the preset initial temperature to the heating temperature value.

[0099] For example, when the target test device is a charging device, the target liquid cooling pipe corresponding to the target charging interface connected to the charging device is the first liquid cooling pipe. The controller controls the heat source to heat the liquid pre-flowing into the first liquid pipe at a preset initial temperature to the heating temperature value. Optionally, the preset initial temperature can be room temperature.

[0100] Specifically, the heat source may also include: a heater and a control board. The control board is connected to the heater. In this case, the controller sends a heating command to the control board, and the control board controls the heater to heat the liquid at the preset initial temperature to the heating temperature value.

[0101] S303 controls the hot and cold sources to flow the heated liquid into the target liquid tube corresponding to the target charging interface in order to heat the target charging interface.

[0102] Specifically, the heat source may also include: a liquid control unit, with a control board connected to the liquid control unit, wherein the controller can control the liquid control unit to flow the heated liquid into the target charging interface corresponding to the target.

[0103] The liquid is in the tube.

[0104] After the heated liquid flows into the target liquid tube, since a portion of the target liquid tube is in the target charging interface, the heated liquid in the target liquid tube can raise the temperature in the target charging interface.

[0105] 5. During the charging process, the target charging interface is connected to the target test equipment. As the temperature of the target charging interface rises, the temperature of the target test equipment also rises.

[0106] S304, Obtain the temperature of the target charging interface detected by the temperature sensor set in the target charging interface.

[0107] The first and second temperature sensors can detect the temperature in the charging dock and charging gun head in real time. Therefore, the controller can obtain the temperature of the target charging interface detected by the temperature sensor set in the target charging interface in real time.

[0108] S305: If the temperature of the target charging interface exceeds the over-temperature threshold, receive the over-temperature response information from the target test device.

[0109] The temperature of the target charging interface is compared with the over-temperature threshold. If the over-temperature threshold is exceeded, the target test device needs to respond to the over-temperature under normal circumstances. Therefore, the over-temperature response information of the target test device is received.

[0110] S306. Based on the over-temperature response information and the preset over-temperature response information of the target test equipment, the over-temperature test result of the target test equipment is obtained.

[0111] If the over-temperature response information is the same as the preset over-temperature response information of the target test equipment, the over-temperature test result is a successful test; otherwise, the test fails.

[0112] This application provides a charging over-temperature testing method. Based on the over-temperature threshold of the target testing device, a heating temperature value corresponding to the target testing device is determined. According to the heating temperature value, a hot / cold source in the testing device heats the liquid, which is pre-flowing into the target liquid tube corresponding to the target charging interface connected to the target testing device, to the preset initial temperature value. The hot / cold source then controls the heated liquid to flow into the target liquid tube corresponding to the target charging interface to heat the target charging interface. The temperature of the target charging interface is obtained from the temperature sensor installed in the target charging interface. If the temperature of the target charging interface exceeds the over-temperature threshold, over-temperature response information from the target testing device is received. Based on the over-temperature response information and the preset over-temperature response information of the target testing device, the over-temperature test result of the target testing device is obtained. The method increases the temperature of the target charging interface by heating the liquid. The over-temperature test result of the target testing device can be determined based on the over-temperature response information and the preset over-temperature response information. The over-temperature phenomenon under real-world operating conditions ensures high accuracy of the obtained test results.

[0113] In the above Figure 3 Based on the charging over-temperature test method shown, this application embodiment also provides another charging over-temperature test method. Optionally, Figure 4 A flowchart illustrating another charging over-temperature testing method provided in this application embodiment is shown below. Figure 4 As shown, the above method S302, which controls the hot and cold sources in the testing equipment to heat the liquid in the target liquid tube corresponding to the target charging interface connected to the target testing equipment from a preset initial temperature to a heating temperature value, includes:

[0114] The target cold or heat source corresponding to the target charging interface connected to the target test device in the control test equipment heats the liquid at the preset initial temperature to the heating temperature value.

[0115] For example, when the target test device is a charging device, the target charging interface connected to the charging device is the charging socket in the test device that has overheated during charging, and the target hot and cold source corresponding to the charging socket is the first hot and cold source. The controller controls the first hot and cold source to heat the liquid in it from a preset initial temperature to the heating temperature value.

[0116] The method further includes:

[0117] S401, if the temperature of the target charging interface does not exceed the over-temperature threshold, increase the heating temperature value to obtain a new heating temperature value.

[0118] If the temperature of the target charging interface does not exceed the over-temperature threshold, it means that the liquid consumes too much heat during the flow process. The heating temperature value is reduced by heat consumption, causing the temperature of the target charging interface to be lower than the over-temperature threshold. Therefore, it is necessary to increase the heating temperature value to obtain a new heating temperature value.

[0119] In this embodiment of the application, a preset temperature value can be added to the heating temperature value. The preset temperature value should not be too large or too small, and can be determined according to the actual working conditions.

[0120] S402 controls the target heat source to heat up according to the new heating temperature value until the temperature of the target charging interface exceeds the over-temperature threshold.

[0121] Based on the new heating temperature value, the target heat source is controlled to heat. If the temperature of the target charging interface has not yet exceeded the over-temperature threshold, the new heating temperature value is further increased. For example, a preset temperature value can be added to the new heating temperature value.

[0122] The system will receive over-temperature response information from the target test device once the temperature of the target charging interface exceeds the over-temperature threshold.

[0123] Optionally, the preset temperature value can be changed based on the number of times the heating temperature value is increased and the preset temperature value, or the relationship between the over-temperature threshold and the heating temperature value can be changed to make subsequent tests more efficient.

[0124] This application provides a charging over-temperature testing method, which controls a hot or cold source in the testing equipment to heat the liquid in the target liquid tube corresponding to the target charging interface connected to the target testing equipment from a preset initial temperature to a heating temperature value. The method includes: controlling the target hot or cold source in the testing equipment to heat the liquid in the target charging interface connected to the target testing equipment from the preset initial temperature to the heating temperature value; if the temperature of the target charging interface does not exceed the over-temperature threshold, increasing the heating temperature value to obtain a new heating temperature value; and controlling the target hot or cold source to heat the liquid according to the new heating temperature value until the temperature of the target charging interface exceeds the over-temperature threshold, thereby causing the target testing equipment to respond to the over-temperature phenomenon to determine the test result.

[0125] In the above Figure 4 Based on the charging over-temperature test method shown, this application embodiment also provides another charging over-temperature test method. Optionally, the method further includes:

[0126] If the temperature of the target charging interface does not exceed the over-temperature threshold within a preset time, it is determined that the target heat or cold source has malfunctioned.

[0127] For example, if the temperature of the target charging interface does not exceed the over-temperature threshold within one hour, it may be that the heater in the target hot or cold source is malfunctioning. In this case, the CC1 line in the cable of the overheating test equipment can be disconnected by the controller to stop charging.

[0128] The cable includes a CC1 circuit, with one CC1 circuit on one side and another on the other. These two CC1 circuits are connected by a normally closed relay. The controller can connect to this relay to control its state (on or off). The CC1 circuit is used to confirm the connection between the charging device and the device being charged. If the charging device confirms the connection, the relay is on, and charging begins. If the charging device confirms the disconnection, the relay is off, and charging stops.

[0129] The present application provides a charging over-temperature test method. If the temperature of the target charging interface does not exceed the over-temperature threshold within a preset time, it is determined that the target heat source has failed, charging is stopped, the target heat source is analyzed for fault, and the test is continued after the fault of the target heat source is eliminated.

[0130] In the above Figure 4 Based on the charging over-temperature test method shown, this application embodiment also provides another charging over-temperature test method. Optionally, the method further includes:

[0131] The other hot or cold source corresponding to another charging port in the control test equipment will cause liquid at a preset initial temperature to flow into the liquid tube in the cable connected to the other charging port.

[0132] In this embodiment, the overheating phenomenon is simulated at one end of the charging overheating test device. Therefore, while one end is heated, the other end must maintain normal heat dissipation to avoid the overheating trigger at one end affecting the overheating trigger at the other end. Therefore, when the target test device is a charging device and the target charging interface is a charging socket, the second heat source corresponding to the charging gun head should allow liquid at a preset initial temperature to flow into the second liquid tube on the other side of the cable, so that the other side of the cable can charge and dissipate heat normally.

[0133] The present application provides a charging overheating test method, which controls another heat source corresponding to another charging interface in the test equipment to flow liquid at a preset initial temperature into the liquid tube in the cable connected to the other charging interface. By controlling the overheating test equipment, one end of the charging overheating test equipment is overheated while the other end is normally cooled, so that the overheating test result of the target test equipment is more accurate.

[0134] In the above Figure 3 Based on the charging over-temperature test method shown, this application embodiment also provides another charging over-temperature test method. Optionally, Figure 5 A flowchart illustrating another charging over-temperature testing method provided in this application embodiment is shown below. Figure 5 As shown, the over-temperature threshold includes: a first over-temperature threshold; in the above method S305, if the temperature of the target charging interface exceeds the over-temperature threshold, over-temperature response information from the target test device is received, including:

[0135] S501, if the temperature of the target charging interface exceeds the first over-temperature threshold, receive the charging current value sent by the charging device.

[0136] The first over-temperature threshold is an alarm over-temperature threshold. If the temperature of the target charging interface exceeds the first over-temperature threshold, charging will not stop, but the charging current will be reduced.

[0137] If the target charging interface is the charging dock in the test device for overheating, the temperature of the charging device exceeds the first overheating threshold. The normal response of the charging device to this overheating phenomenon is to reduce its output charging current value and ignore the current value required by the device to be charged for communication transmission to the charging device.

[0138] If the target charging interface is the charging gun head in the overheating test device, the temperature of the device to be charged exceeds the first overheating threshold. In response to the overheating phenomenon, the device to be charged reduces the current demand value and sends the reduced current demand value to the charging device, so that the charging device outputs electrical energy according to the reduced current demand value.

[0139] If the temperature of the target charging interface exceeds the first over-temperature threshold, the correct response is for the charging device to reduce the charging current value. Therefore, the charging current value sent by the charging device is received.

[0140] The above method S306, based on the over-temperature response information and the preset over-temperature response information of the target test equipment, obtains the over-temperature test result of the target test equipment, including:

[0141] S502, if the charging current value of the charging device is lower than the preset initial current value, then the over-temperature test result of the target test device is determined to be a successful test.

[0142] The preset initial current value can be the charging current value before exceeding the first over-temperature threshold.

[0143] If the charging current value of the charging device does not decrease compared to the preset initial current value, then the over-temperature test result of the target test device is determined to be a test failure.

[0144] This application provides a charging over-temperature test method, the over-temperature threshold includes: a first over-temperature threshold, if the temperature of the target charging interface exceeds the first over-temperature threshold, the charging current value of the charging device is received, if the charging current value of the charging device decreases compared with the preset initial current value, then the over-temperature test result of the target test device is determined to be successful, thus realizing the over-temperature test under the first over-temperature threshold.

[0145] In the above Figure 3 Based on the charging over-temperature test method shown, this application embodiment also provides another charging over-temperature test method. Optionally, Figure 6 A flowchart illustrating another charging over-temperature testing method provided in this application embodiment is shown below. Figure 6 As shown, the target test device is a charging device, the target charging interface is a charging dock, and the over-temperature threshold also includes: a second over-temperature threshold.

[0146] The above method S305, if the temperature of the target charging interface exceeds the over-temperature threshold, receives over-temperature response information from the target test device, and further includes:

[0147] If the temperature of the charging dock exceeds the second over-temperature threshold, the charging device receives the charging status of the charging dock in the charging device and the test device, and receives the first notification message sent by the device to be charged. The first notification message is sent by the device to be charged after receiving the charging stop message sent by the charging device.

[0148] The second over-temperature threshold is the over-temperature threshold for stopping charging. If the temperature of the target charging interface exceeds the second over-temperature threshold, charging will be automatically stopped. Optionally, the second over-temperature threshold is greater than the first over-temperature threshold.

[0149] When the target test device is a charging device and the target charging interface is a charging dock, if the temperature of the charging device exceeds the second over-temperature threshold, the normal response of the charging device to this over-temperature phenomenon is: actively stop outputting power and communicate with the device to be charged to send a charging stop message corresponding to the over-temperature fault of the charging device; when the voltage of the output current of the device to be charged drops to the preset condition, disconnect the physical connection with the device to be charged.

[0150] The controller can acquire or receive the charging status of the charging device and the charging dock in the test device sent by the corresponding charging device, and receive the first notification message sent to the controller by the device to be charged after receiving the charging stop message.

[0151] Optionally, the first notification message may be the same as or different from the charging stop message; no specific restrictions are imposed in this embodiment.

[0152] The above method S306, based on the over-temperature response information and the preset over-temperature response information of the target test equipment, obtains the over-temperature test result of the target test equipment, including:

[0153] S601, if the charging status is "charging", then the over-temperature test result of the charging device is determined to be: test failed.

[0154] In a normal response, the charging device will actively stop outputting power. Therefore, the correct response is when it is not charging. In other words, the over-temperature test of the charging device fails when it is charging.

[0155] S602, if the charging status is not charging and the first notification message matches the preset first message, then the over-temperature test result of the charging device is determined to be: test successful.

[0156] This application provides a charging over-temperature test method. The target test device is a charging device, and the target charging interface is a charging dock. The over-temperature threshold further includes a second over-temperature threshold. If the temperature of the charging dock exceeds the second over-temperature threshold, the charging device receives the charging status of the charging device and the charging dock in the test device, and receives a first notification message sent by the device to be charged. The first notification message is sent by the device to be charged after receiving the charging stop message sent by the charging device. If the charging status is in the charging state, the over-temperature test result of the charging device is determined to be a test failure. If the charging status is in the non-charging state and the first notification message matches the preset first message, the over-temperature test result of the charging device is determined to be a test success. This realizes the over-temperature test under the second over-temperature threshold when the target test device is a charging device and the target charging interface is a charging dock.

[0157] In the above Figure 3 Based on the charging over-temperature test method shown, this application embodiment also provides another charging over-temperature test method. Optionally, Figure 7 A flowchart illustrating another charging over-temperature testing method provided in this application embodiment is shown below. Figure 7 As shown, the target test device is the device to be charged, the target charging interface is the charging gun head, and the over-temperature threshold also includes: a third over-temperature threshold.

[0158] In the above method S305, if the temperature of the target charging interface exceeds the over-temperature threshold, over-temperature response information from the target test device is received, including:

[0159] If the temperature of the charging gun head exceeds the third over-temperature threshold, the system receives a second notification message from the charging device. The second notification message is sent by the charging device after receiving the charging stop message from the device to be charged. The system also receives the charging status of the charging device and the charging dock in the test device from the device to be charged.

[0160] This third over-temperature threshold is also the over-temperature threshold for stopping charging. Optionally, the third over-temperature threshold is greater than the first over-temperature threshold.

[0161] When the target test device is the device to be charged and the target charging interface is the charging gun head, the temperature of the device to be charged exceeds the third over-temperature threshold. Specifically, the temperature of the charging socket of the device to be charged exceeds the third over-temperature threshold. The normal response of the device to be charged to this over-temperature phenomenon is as follows: it communicates with the charging device to send a charging stop message corresponding to the over-temperature fault of the device to be charged. After receiving the charging stop message, the charging device stops outputting power. When the voltage of the output current of the charging device drops to a preset condition, it disconnects the physical connection (electrical connection) with the device to be charged. At the same time, the device to be charged also disconnects the physical connection with the charging device.

[0162] The controller can acquire or receive a second notification message sent to it by the corresponding charging device after receiving a charging stop message, and receive the charging status of the charging device and the charging dock in the test device.

[0163] Optionally, the second notification message may be the same as or different from the charging stop message; no specific restrictions are imposed in this embodiment.

[0164] The above method S306, based on the over-temperature response information and the preset over-temperature response information of the target test equipment, obtains the over-temperature test result of the target test equipment, including:

[0165] S701, if the second notification message does not match the preset second message, the over-temperature test result of the device to be charged is determined to be: test failed.

[0166] In a normal response, the device to be charged will actively stop receiving power, that is, it will send a charging stop message corresponding to the over-temperature fault of the device to be charged to the charging device. After receiving the charging stop message, the charging device will send a preset second message to the controller. Therefore, if the second notification message does not match the preset second message, the over-temperature test of the device to be charged will fail.

[0167] S702, if the second notification message matches the preset second message and the charging state is not charging, then the over-temperature test result of the device to be charged is determined to be: test successful.

[0168] This application provides a charging over-temperature test method. The target test device is the device to be charged, and the target charging interface is the charging gun head. The over-temperature threshold also includes a third over-temperature threshold. If the temperature of the charging gun head exceeds the third over-temperature threshold, a second notification message sent by the charging device is received. The second notification message is sent by the charging device after receiving a charging stop message sent by the device to be charged. The charging device also receives the charging status of the charging device and the charging dock in the test device. If the second notification message does not match the preset second message, the over-temperature test result of the device to be charged is determined to be: test failure. If the second notification message matches the preset second message and the charging status is not charging, the over-temperature test result of the device to be charged is determined to be: test success. This method realizes over-temperature testing under the second over-temperature threshold when the target test device is the device to be charged and the target charging interface is the charging gun head.

[0169] In the above Figure 1 Based on the schematic diagram of the charging overheat test device shown, this application embodiment also provides a test system. Optionally, Figure 8 This is a schematic diagram of the structure of a testing system provided in an embodiment of this application, such as... Figure 8 As shown, the test system includes: test equipment 10, charging equipment 20, and equipment to be charged 30.

[0170] Test device 10 is a test device for overheating during charging.

[0171] The charging device 20 is connected to the device to be charged 30 via the testing device 10. Specifically, the charging device 20 is connected to the charging socket of the testing device 10, and the charging gun of the testing device 10 is connected to the device to be charged 30.

[0172] The present application provides a testing system that causes an overheating phenomenon in the charging device by increasing the temperature of the charging base and responds to the overheating phenomenon to determine the overheating test result of the charging device. It also causes an overheating phenomenon in the device to be charged by increasing the temperature of the charging gun head and responds to the overheating phenomenon to determine the overheating test result of the device to be charged.

[0173] The following describes the charging over-temperature testing device, controller, and storage medium provided in this application, which are used to implement the application. The specific implementation process and technical effects are described above and will not be repeated below.

[0174] Figure 9 This is a schematic diagram of a charging over-temperature testing device provided in an embodiment of this application, as shown below. Figure 9 As shown, the charging over-temperature testing device includes:

[0175] The determination module 901 is used to determine the heating temperature value corresponding to the target test device based on the over-temperature threshold of the target test device; the target test device is a charging device or a device to be charged.

[0176] The first control module 902 is used to control the heat source in the test equipment to heat the liquid at the preset initial temperature of the liquid in the target liquid cooling pipe corresponding to the target charging interface connected to the target test equipment to the heating temperature value according to the heating temperature value.

[0177] The second control module 903 is used to control the cold and heat sources to flow the heated liquid into the target liquid tube corresponding to the target charging interface, so as to heat the target charging interface.

[0178] The acquisition module 904 is used to acquire the temperature of the target charging interface detected by the temperature sensor set in the target charging interface.

[0179] The receiving module 905 is used to receive over-temperature response information from the target test device if the temperature of the target charging interface exceeds the over-temperature threshold.

[0180] The module 906 is used to obtain the over-temperature test result of the target test equipment based on the over-temperature response information and the preset over-temperature response information of the target test equipment.

[0181] The third control module 907 is used to control the cold and heat sources in the test equipment to heat the liquid in the target liquid tube corresponding to the target charging interface connected to the target test equipment from a preset initial temperature to a heating temperature value. This includes: controlling the target cold and heat sources in the test equipment to heat the liquid at the preset initial temperature to the heating temperature value; if the temperature of the target charging interface does not exceed the over-temperature threshold, increasing the heating temperature value to obtain a new heating temperature value; and controlling the target cold and heat sources to heat the liquid according to the new heating temperature value until the temperature of the target charging interface exceeds the over-temperature threshold.

[0182] Optionally, the third control module 907 is also used to determine that the target heat source has failed if the temperature of the target charging interface does not exceed the over-temperature threshold within a preset time.

[0183] The fourth control module 908 is used to control other hot or cold sources corresponding to another charging interface in the test equipment to flow liquid at a preset initial temperature into the liquid tube in the cable connected to the other charging interface.

[0184] Optionally, the receiving module 905 is specifically used for over-temperature thresholds including: a first over-temperature threshold; if the temperature of the target charging interface exceeds the over-temperature threshold, receiving over-temperature response information from the target test device, including: if the temperature of the target charging interface exceeds the first over-temperature threshold, receiving the charging current value sent by the charging device; and obtaining the over-temperature test result of the target test device based on the over-temperature response information and the preset over-temperature response information of the target test device, including: if the charging current value of the charging device decreases compared to the preset initial current value, then determining that the over-temperature test result of the target test device is a successful test.

[0185] Optionally, the receiving module 905 is specifically configured such that the target test device is a charging device, the target charging interface is a charging dock, and the over-temperature threshold further includes: a second over-temperature threshold; if the temperature of the target charging interface exceeds the over-temperature threshold, receiving over-temperature response information from the target test device; further including: if the temperature of the charging dock exceeds the second over-temperature threshold, receiving the charging status of the charging device and the charging dock in the test device sent by the charging device, and receiving a first notification message sent by the device to be charged, the first notification message being a message sent by the device to be charged after receiving a charging stop message sent by the charging device; and obtaining the over-temperature test result of the target test device based on the over-temperature response information and the preset over-temperature response information of the target test device, including: if the charging status is in the charging state, then determining the over-temperature test result of the charging device as: test failed; if the charging status is in the non-charging state, and the first notification message matches the preset first message, then determining the over-temperature test result of the charging device as: test successful.

[0186] Optionally, the receiving module 905 is specifically configured such that the target test device is the device to be charged, the target charging interface is the charging gun head, and the over-temperature threshold further includes a third over-temperature threshold. If the temperature of the target charging interface exceeds the over-temperature threshold, the module receives over-temperature response information from the target test device, including: if the temperature of the charging gun head exceeds the third over-temperature threshold, receiving a second notification message sent by the charging device, wherein the second notification message is a message sent by the charging device after receiving a charging stop message sent by the device to be charged, and receiving the charging status of the charging device and the charging dock in the test device sent by the charging device; and obtaining the over-temperature test result of the target test device based on the over-temperature response information and the preset over-temperature response information of the target test device, including: if the second notification message does not match the preset second message, then the over-temperature test result of the device to be charged is determined to be: test failure; if the second notification message matches the preset second message, and the charging status is a non-charging status, then the over-temperature test result of the device to be charged is determined to be: test success.

[0187] These modules can be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), one or more digital signal processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs). Alternatively, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together as a system-on-a-chip (SOC).

[0188] Figure 10 This is a schematic diagram of a controller provided in an embodiment of this application. The controller may be a device with computing processing capabilities.

[0189] The controller includes a processor 1001, a storage medium 1002, and a bus 1003. The processor 1001 and the storage medium 1002 are connected via the bus 1003.

[0190] Storage medium 1002 is used to store programs, and processor 1001 calls the programs stored in storage medium 1002 to execute the above method embodiments. The specific implementation and technical effects are similar, and will not be described again here.

[0191] Optionally, the present invention also provides a program product, such as a computer-readable storage medium, comprising a program that, when executed by a processor, is used to perform the above-described method embodiments.

[0192] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other...

[0193] The division method can be varied, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not performed. Another point is that the coupling or direct coupling or communication connection shown or discussed between each other can be indirect coupling or communication connection through some interface, device, or unit, and can be electrical, mechanical, or other forms.

[0194] The unit described as a separate component may or may not be physically separate.

[0195] The components displayed as units may or may not be physical units; that is, they may be located in one location or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0196] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one.

[0197] The integrated units described above can be implemented either in hardware or in a combination of hardware and software functional units.

[0198] The integrated unit described above, implemented as a software functional unit, can be stored in a computer-readable storage medium. This software functional unit, stored in a storage medium, includes several instructions to cause a computer device (which may be a personal computer, server, or network device) to...

[0199] The storage medium includes: a USB flash drive, a portable hard drive, a read-only memory (ROM), etc., or a processor, which executes some steps of the methods described in the various embodiments of the present invention.

[0200] ROM (ROM), RAM (Random Access Memory), magnetic disks, optical disks, and other media that can store program code.

[0201] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A test device for charging over-temperature, characterized in that The testing equipment includes: a charging dock, a charging gun head, cables, a heat source and a controller; One side of the cable is provided with a first charging cable and a first liquid tube, and the other side of the cable is provided with a second charging cable and a second liquid tube. The first charging cable and the second charging cable are electrically connected. The first charging cable is also connected to the charging base, and the second charging cable is also connected to the charging gun head. The first liquid tube is connected to the first hot / cold source, and the second liquid tube is connected to the second hot / cold source; a portion of the first liquid tube extends into the charging base, and a portion of the second liquid tube extends into the charging gun head; wherein, the charging base is provided with a first temperature sensor, and the charging gun head is provided with a second temperature sensor; the controller is connected to the first temperature sensor and the second temperature sensor, and the controller is also connected to the first hot / cold source and the second hot / cold source.

2. The test apparatus of claim 1, wherein, The first liquid tube is disposed around the first charging cable; The second liquid tube is disposed around the second charging cable.

3. A method of over-temperature testing of a charge, characterized by, A controller applied in the over-temperature charging test device according to any one of claims 1-2, the method comprising: The heating temperature value corresponding to the target test device is determined based on the over-temperature threshold of the target test device; the target test device is a charging device or a device to be charged. Based on the heating temperature value, the target heat source corresponding to the target charging interface connected to the target test device in the test equipment is controlled to heat the liquid at a preset initial temperature to the heating temperature value; wherein, the target heat source includes a first heat source and a second heat source; the target charging interface is a charging socket or a charging gun head; The target heat source controls the heated liquid to flow into the target liquid pipe corresponding to the target charging interface, and the target charging interface is heated through the portion of the target liquid pipe that extends into the target charging interface; Obtain the temperature of the target charging interface detected by the temperature sensor installed in the target charging interface; If the temperature of the target charging interface exceeds the over-temperature threshold, receive the over-temperature response information from the target test device; Based on the over-temperature response information and the preset over-temperature response information of the target test equipment, the over-temperature test result of the target test equipment is obtained.

4. The test method of claim 3, wherein, The method further includes: If the temperature of the target charging interface does not exceed the over-temperature threshold, the heating temperature value is increased to obtain a new heating temperature value; Based on the new heating temperature value, the target heat source is controlled to heat until the temperature of the target charging interface exceeds the over-temperature threshold.

5. The test method according to claim 4, characterized in that, The method further includes: If the temperature of the target charging interface does not exceed the over-temperature threshold within a preset time, it is determined that the target heat or cold source has malfunctioned.

6. The test method according to claim 4, characterized in that, The method further includes: The other heat source corresponding to another charging port in the test equipment is controlled to allow the liquid at the preset initial temperature to flow into the liquid tube in the cable connected to the other charging port.

7. The test method according to claim 3, characterized in that, The over-temperature threshold includes: a first over-temperature threshold; the step of receiving over-temperature response information from the target test device if the temperature of the target charging interface exceeds the over-temperature threshold includes: If the temperature of the target charging interface exceeds the first over-temperature threshold, the charging current value sent by the charging device is received. The step of obtaining the over-temperature test result of the target test equipment based on the over-temperature response information and the preset over-temperature response information of the target test equipment includes: If the charging current value of the charging device decreases compared to the preset initial current value, then the over-temperature test result of the target test device is determined to be a successful test.

8. The test method according to claim 3, characterized in that, The target testing device is a charging device, the target charging interface is a charging dock, and the over-temperature threshold further includes: a second over-temperature threshold. The step of receiving over-temperature response information from the target testing device if the temperature of the target charging interface exceeds the over-temperature threshold further includes: If the temperature of the charging dock exceeds the second over-temperature threshold, the charging device receives the charging status of the charging dock in the charging device and the test device, and receives the first notification message sent by the device to be charged. The first notification message is a message sent by the device to be charged after receiving the charging stop message sent by the charging device. The step of obtaining the over-temperature test result of the target test equipment based on the over-temperature response information and the preset over-temperature response information of the target test equipment includes: If the charging state is "charging state", then the over-temperature test result of the charging device is determined to be: test failed. If the charging state is not charging, and the first notification message matches the preset first message, then the over-temperature test result of the charging device is determined to be: test successful.

9. The test method according to claim 3, characterized in that, The target test device is the device to be charged, the target charging interface is the charging gun head, and the over-temperature threshold also includes: a third over-temperature threshold; If the temperature of the target charging interface exceeds the over-temperature threshold, the over-temperature response information from the target testing device is received, including: If the temperature of the charging gun head exceeds the third over-temperature threshold, a second notification message is received from the charging device. The second notification message is sent by the charging device after receiving the charging stop message sent by the device to be charged. The charging device also receives the charging status of the charging device and the charging dock in the test device. The step of obtaining the over-temperature test result of the target test equipment based on the over-temperature response information and the preset over-temperature response information of the target test equipment includes: If the second notification message does not match the preset second message, then the over-temperature test result of the device to be charged is determined to be: test failed; If the second notification message matches the preset second message, and the charging state is not charging, then the over-temperature test result of the device to be charged is determined to be: test successful.

10. A testing system, characterized in that, Includes: testing equipment, charging equipment, and equipment to be charged; The testing equipment is the charging overheat testing equipment described in any one of claims 1-2 above; The charging device is connected to the device to be charged via the testing device.

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