Power supply test device and power supply test method for bogie-less rail vehicle

Abstract

The present invention discloses a power supply test device and a power supply test method for a bogie-less rail vehicle. The power supply test device for a bogie-less rail vehicle comprises: a conductive rail; a plurality of insulating bogies, each of which is mounted on the conductive rail and spaced apart along the length of the conductive rail. When the bogie-less rail vehicle is mounted on the plurality of insulating bogies, the plurality of insulating bogies insulate the conductive rail from the bogie-less rail vehicle; a current receiving current detection device, each of which has a first connection end and a second connection end; and a plurality of return current detection devices, each of which has a third connection end and a fourth connection end, the fourth connection end of each return current detection device being connected to the conductive rail. The power supply test device for a bogie-less rail vehicle of the present invention solves the problem of inconvenience in conducting electrical system testing on rail vehicles in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of rail vehicle testing, and in particular to a power supply testing device and a power supply testing method for a bogie-less rail vehicle. Background Art

[0002] During the production process of rail vehicles, the electrical systems (air conditioning system, door system, PIDS system, pyrotechnic system, etc.) need to be tested. Due to the influence of vehicle structure and function, in order to realize the test, the vehicle needs to be unloaded, marshaled, and other operations. This is not only cumbersome to operate, but also has limited resources in rail vehicle factories and non-standard rail vehicles, limited resources during large-scale production of standard-gauge vehicles, and limited track resources on test lines. These make it difficult to carry out large-scale testing, which in turn affects the mass production efficiency of rail vehicles.

[0003] Therefore, there is a problem in the prior art that it is inconvenient to test the electrical system of a rail vehicle. Currently, no effective solution has been proposed to the above problem.

[0004] The above information disclosed in the Background section is only intended to enhance the understanding of the background technology of the technology described herein. Therefore, the Background section may contain some information that does not form the known prior art for those skilled in the art. Summary of the Invention

[0005] The embodiments of the present invention provide a power supply test device and a power supply test method for a bogie-less rail vehicle, so as to at least solve the problem of inconvenience in testing the electrical system of a rail vehicle in the prior art.

[0006] To achieve the above-mentioned object, according to a first aspect of an embodiment of the present invention, there is provided a power supply test device for a bogie-less rail vehicle, comprising: a conductive rail; a plurality of insulating bogies, each of the plurality of insulating bogies being mounted on the conductive rail, the plurality of insulating bogies being spaced apart along the length direction of the conductive rail, so that when the bogie-less rail vehicle is mounted on the plurality of insulating bogies, the plurality of insulating bogies insulate the conductive rail from the bogie-less rail vehicle; a current receiving current detection device, the current receiving current detection device having a first connection end and a second connection end; and a plurality of return current detection devices, each of the return current detection devices having a third connection end and a fourth connection end, the fourth connection end of each return current detection device being connected to the conductive rail.

[0007] Furthermore, the current detection device includes a switch device, and the switch device controls the conduction or disconnection between the first connection end and the second connection end.

[0008] Furthermore, the receiving current detection device and / or the return current detection device includes a leakage protection device.

[0009] Furthermore, the power supply test device for the bogieless rail vehicle also includes: a plurality of common ground protection devices, each of which has a fifth connection end and a sixth connection end, and the sixth connection end of each common ground protection device is grounded.

[0010] Furthermore, the insulating bogie includes: a bogie body, which is installed on the conductive rail; an insulating protective member, which is arranged at one end of the bogie body away from the conductive rail. When a bogieless rail vehicle is installed on multiple insulating bogies, the insulating protective members of each insulating bogie are in contact with the bogieless rail vehicle.

[0011] According to a second aspect of an embodiment of the present invention, a power supply testing method for a bogieless rail vehicle is provided, which is used for the power supply testing device of the above-mentioned bogieless rail vehicle, and comprises: installing the bogieless rail vehicle on multiple insulating bogies; connecting a first connection end of a receiving current detection device to the positive electrode of a power supply, connecting a second connection end of the receiving current detection device to the positive busbar of the bogieless rail vehicle, connecting the third connection ends of multiple return current detection devices one-to-one to the return busbars of each car of the bogieless rail vehicle, and connecting the negative electrode of the power supply to a conductive rail; obtaining a first current detected by the receiving current detection device and multiple second currents detected by the multiple return current detection devices when the electrical system in each car is working; and determining whether there is a fault in the electrical system of the bogieless rail vehicle based on at least the first current and the multiple second currents.

[0012] Furthermore, determining whether there is a fault in the electrical system of the bogieless rail vehicle is performed at least based on the first current and multiple second currents, including: determining whether the sum of all the second currents is equal to the first current; and determining that there is a fault in the electrical system of the bogieless rail vehicle when the sum of all the second currents is not equal to the first current.

[0013] Furthermore, the power supply test method for the bogieless rail vehicle further includes: determining whether the first current is greater than a preset current; and determining that a fault exists in the electrical system of the bogieless rail vehicle when the first current is greater than the preset current.

[0014] Furthermore, the power supply testing device for a bogieless rail vehicle is the above-mentioned power supply testing device for a bogieless rail vehicle, and the power supply testing method for a bogieless rail vehicle also includes: determining whether the current detected by each common ground protection device is 0A; when the current detected by any common ground protection device is not 0A, it is determined that there is a fault in the electrical system of the bogieless rail vehicle.

[0015] Furthermore, the power supply testing device for a bogieless rail vehicle is the above-mentioned power supply testing device for a bogieless rail vehicle, and the power supply testing method for a bogieless rail vehicle also includes: when it is determined that there is a fault in the electrical system of the bogieless rail vehicle, controlling the switching device to cut off.

[0016] A power supply test device for a bogieless rail vehicle employing the technical solution of the present invention comprises: a conductive rail, a plurality of insulating bogies, a current-receiving current detection device, and a plurality of return current detection devices. The plurality of insulating bogies are mounted on the conductive rail and spaced apart along the length of the conductive rail. When the bogieless rail vehicle is mounted on the plurality of insulating bogies, the plurality of insulating bogies insulate the conductive rail from the bogieless rail vehicle. The current-receiving current detection device has a first connection end and a second connection end. Each return current detection device has a third connection end and a fourth connection end, and the fourth connection end of each return current detection device is connected to the conductive rail. When the power supply test device employing this structural arrangement is in use, the first connection end of the current-receiving current detection device is connected to the positive electrode of a power supply, the second connection end of the current-receiving current detection device is connected to the positive busbar of the bogieless rail vehicle, the third connection ends of the plurality of return current detection devices are connected one-to-one to the return busbar of each car of the bogieless rail vehicle, and the conductive rail is connected to the negative electrode of the power supply. In this way, when testing the electrical appliances in each car of a bogieless rail vehicle, the total current input to the bogieless rail vehicle can be detected by the current-receiving current detection device, and the output current of each car can be detected by multiple return current detection devices. Then, based on the detection results, it can be determined whether there is a fault in the electrical system of the bogieless rail vehicle. There is no need to perform operations such as unloading or marshaling the vehicle, which effectively facilitates the testing operation and solves the problem of inconvenience in testing the electrical system of rail vehicles in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 is a first schematic diagram of an optional embodiment of a power supply test device for a bogieless rail vehicle according to the present invention;

[0019] Figure 2 is a second schematic diagram of an optional embodiment of the power supply test device for a bogieless rail vehicle according to the present invention;

[0020] Figure 3 is a third schematic diagram of an optional embodiment of the power supply test device for a bogieless rail vehicle according to the present invention;

[0021] Figure 4 is a flow chart of an optional embodiment of a power supply test method for a bogie-less rail vehicle according to the present invention;

[0022] Figure 5 is a schematic diagram of an embodiment of a power supply test method for a bogie-less rail vehicle according to the present invention during implementation;

[0023] The above drawings include the following reference numerals:

[0024] 1. Conductive rail; 2. Insulated bogie; 3. Current-carrying current detection device; 4. Return current detection device; 5. Common ground protection device; 6. Positive collector shoe; 7. Negative collector shoe; 10. Bogieless rail vehicle; 101. Carriage; 102. Positive busbar; 103. Return busbar; 104. Grounding protection line; 105. Fuse; 11. Power supply. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element or intervening elements may be present. Moreover, in the specification and claims, when it is described that an element is "connected to" another element, the element may be "directly connected to" the other element or "connected to" the other element through a third element.

[0029] like Figures 1 to 3 As shown, an embodiment of the present invention provides a power supply test device for a bogie-less rail vehicle, which includes: a conductive rail 1; a plurality of insulating bogies 2, each of which is mounted on the conductive rail 1 and spaced apart along the length direction of the conductive rail 1. When a bogie-less rail vehicle 10 is mounted on the plurality of insulating bogies 2, the plurality of insulating bogies 2 insulate the conductive rail 1 from the bogie-less rail vehicle 10; a current-receiving current detection device 3, the current-receiving current detection device 3 having a first connection end and a second connection end; and a plurality of return current detection devices 4, each of which has a third connection end and a fourth connection end, and the fourth connection end of each return current detection device 4 is connected to the conductive rail 1.

[0030] The power supply test device for a bogie-less rail vehicle according to an embodiment of the present invention includes: a conductive rail 1, multiple insulating bogies 2, a current-carrying current detection device 3, and multiple return current detection devices 4. The multiple insulating bogies 2 are all installed on the conductive rail 1, and the multiple insulating bogies 2 are arranged at intervals along the length direction of the conductive rail 1. When the bogie-less rail vehicle 10 is installed on the multiple insulating bogies 2, the multiple insulating bogies 2 insulate the conductive rail 1 from the bogie-less rail vehicle 10; the current-carrying current detection device 3 has a first connection end and a second connection end; each return current detection device 4 has a third connection end and a fourth connection end, and the fourth connection end of each return current detection device 4 is connected to the conductive rail 1. When using the power supply test device with this structure, the first connection end of the receiving current detection device 3 is connected to the positive electrode of the power supply 11, the second connection end of the receiving current detection device 3 is connected to the positive busbar 102 of the bogieless rail vehicle 10, the third connection ends of the multiple return current detection devices 4 are connected one-to-one to the return busbar 103 of each car 101 of the bogieless rail vehicle 10, and the conductive rail 1 is connected to the negative electrode of the power supply 11. In this way, when testing the electrical appliances in each car 101 of the bogieless rail vehicle 10, the receiving current detection device 3 can detect the total current input to the bogieless rail vehicle 10, and the multiple return current detection devices 4 can detect the output current of each car 101. Based on the detection results, it can be determined whether there is a fault in the electrical system of the bogieless rail vehicle 10. There is no need to operate the vehicle by unloading or marshaling, which effectively facilitates the testing operation and solves the inconvenience of testing the electrical system of rail vehicles in the prior art.

[0031] In order to improve the test safety, the second connection end of the current detection device 3 is connected to the fuse 105 of any carriage 101 of the bogieless rail vehicle 10 .

[0032] In actual application, each carriage needs to complete the connection of the car-end bridge line, so as to ensure that each electrical system can be tested normally under power supply conditions.

[0033] Specifically, the insulating bogie includes a bogie body and an insulating protective member, wherein the bogie body is installed on the conductive rail, and the insulating protective member is arranged at the end of the bogie body away from the conductive rail. When a bogieless rail vehicle is installed on multiple insulating bogies, the insulating protective member of each insulating bogie is in contact with the bogieless rail vehicle. The insulating bogie is a process bogie that can meet the installation and application requirements of various different bogieless rail vehicles on the conductive rail.

[0034] During the specific connection, the positive collector shoe 6 of the bogieless rail vehicle 10 is disconnected from the positive bus 102, and the negative collector shoe 7 of the bogieless rail vehicle 10 is disconnected from the return bus 103 of the corresponding car 101. The electrical system of the bogieless rail vehicle 10 may include any electrical appliances, such as the air conditioning system, door system, PIDS system, pyrotechnic system, etc.

[0035] Specifically, the current detection device 3 includes a switch device, and the switch device controls the conduction or disconnection between the first connection end and the second connection end.

[0036] By configuring the current receiving current detection device 3 to include a switching device, the first connection terminal and the second connection terminal can be connected or disconnected by controlling the on and off of the switching device. This allows for flexible control of whether to supply power based on test requirements or fault detection conditions, thereby increasing the flexibility of the power supply test device. In this embodiment, the switching device is a contactor.

[0037] Specifically, the receiving current detection device 3 and / or the return current detection device 4 includes a leakage protection device.

[0038] By setting the receiving current detection device 3 and / or each return current detection device 4 to a structure including a leakage protection device, the safety of use of the receiving current detection device 3 and / or each return current detection device 4 can be improved, avoiding the operator from being injured due to leakage when observing the current situation.

[0039] Specifically, the power supply test device for the bogieless rail vehicle further includes: a plurality of common ground protection devices 5 , each of which has a fifth connection end and a sixth connection end, and the sixth connection end of each common ground protection device 5 is grounded.

[0040] In specific implementation, the fifth connection ends of multiple common ground protection devices 5 are connected one by one to the grounding protection line 104 of each carriage 101, so that each carriage 101 can be grounded and grounding protection can be achieved, avoiding the risks of electric shock, step voltage, etc. caused by the electrified carriage.

[0041] Specifically, the insulating bogie 2 includes: a bogie body 21, which is installed on the conductive rail 1; an insulating protective member 22, which is arranged at an end of the bogie body 21 away from the conductive rail 1. When the bogieless rail vehicle 10 is installed on multiple insulating bogies 2, the insulating protective member 22 of each insulating bogie 2 is in contact with the bogieless rail vehicle 10.

[0042] Figure 4 FIG. 1 is a flow chart of a power supply test method for a bogie-less rail vehicle according to an embodiment of the present invention. Figure 4As shown, the method includes the following steps:

[0043] Step S102, installing the bogie-less rail vehicle 10 on a plurality of insulating bogies 2;

[0044] Step S104: Connect the first connection end of the receiving current detection device 3 to the positive electrode of the power supply 11, connect the second connection end of the receiving current detection device 3 to the positive bus 102 of the bogieless rail vehicle 10, connect the third connection ends of the multiple return current detection devices 4 to the return bus 103 of each car 101 of the bogieless rail vehicle 10 in a one-to-one correspondence, and connect the negative electrode of the power supply 11 to the conductive rail 1;

[0045] Step S106, obtaining the first current detected by the receiving current detection device 3 and the plurality of second currents detected by the plurality of return current detection devices 4 when the electrical system in each carriage 101 is in operation;

[0046] Step S108 : determining whether there is a fault in the electrical system of the bogieless rail vehicle 10 based on at least the first current and the plurality of second currents.

[0047] The power supply test method for a bogieless rail vehicle using the above-mentioned scheme is used for the power supply test device for the above-mentioned bogieless rail vehicle, which includes: installing a bogieless rail vehicle 10 on multiple insulating bogies 2; connecting a first connection end of a current-carrying current detection device 3 to the positive electrode of a power supply 11, connecting a second connection end of the current-carrying current detection device 3 to the positive bus 102 of the bogieless rail vehicle 10, connecting the third connection ends of multiple return current detection devices 4 one-to-one to the return bus 103 of each car 101 of the bogieless rail vehicle 10, and connecting the negative electrode of the power supply 11 to the conductive rail 1; obtaining a first current detected by the current-carrying current detection device 3 and multiple second currents detected by the multiple return current detection devices 4 when the electrical system in each car 101 is in operation; and determining whether there is a fault in the electrical system of the bogieless rail vehicle 10 based on at least the first current and the multiple second currents. In this way, when testing the electrical systems of each car 101 of the bogieless rail vehicle 10, the total current input to the bogieless rail vehicle 10 can be detected by the current-receiving current detection device 3, and the output current of each car 101 can be detected by multiple return current detection devices 4, and then the electrical system of the bogieless rail vehicle 10 can be judged whether there is a fault based on the detection results. There is no need to perform operations such as unloading and marshaling the vehicle, which effectively facilitates the testing operation and solves the problem of inconvenience in testing the electrical system of rail vehicles in the prior art.

[0048] The failure of the above-mentioned electrical system means that the above-mentioned electrical system stops supplying power. When the above-mentioned electrical system is not in a state of failure, the above-mentioned electrical system can continue to supply power.

[0049] Specifically, based on at least the first current and multiple second currents, it is determined whether there is a fault in the electrical system of the bogieless rail vehicle 10, including: determining whether the sum of all the second currents is equal to the first current; when the sum of all the second currents is not equal to the first current, it is determined that there is a fault in the electrical system of the bogieless rail vehicle 10.

[0050] When there is no fault in the electrical system of the bogieless rail vehicle 10, the sum of all the second currents should be equal to the first current. Therefore, using this as a judgment criterion can conveniently and effectively determine whether there is a fault in the electrical system of the bogieless rail vehicle 10.

[0051] Specifically, the power supply test method for the bogieless rail vehicle further includes: determining whether the first current is greater than a preset current; and determining that a fault exists in the electrical system of the bogieless rail vehicle 10 when the first current is greater than the preset current.

[0052] By judging whether the first current is greater than the preset current, and determining that there is a fault in the electrical system of the bogieless rail vehicle 10 if the judgment result is yes, the overcurrent fault can be discovered in time when overcurrent occurs during the test process, thereby avoiding overcurrent damage to the internal electrical system of the bogieless rail vehicle.

[0053] The power supply testing device for a bogieless rail vehicle is the above-mentioned power supply testing device for a bogieless rail vehicle, and the power supply testing method for a bogieless rail vehicle also includes: determining whether the current detected by each common ground protection device 5 is 0A; when the current detected by any common ground protection device 5 is not 0A, it is determined that there is a fault in the electrical system of the bogieless rail vehicle 10.

[0054] The power supply testing device for a bogieless rail vehicle is the above-mentioned power supply testing device for a bogieless rail vehicle. The power supply testing method for a bogieless rail vehicle further includes: when it is determined that there is a fault in the electrical system of the bogieless rail vehicle 10, controlling the switch device to cut off.

[0055] The following is a specific example for explanation. Figure 5As shown, in this embodiment, the first current is recorded as Ia, the sum of all second currents is recorded as Ib, and the current detected by each common ground protection device 5 is recorded as Ic. After the power supply starts and the contactor is closed, it will be determined whether Ia is overcurrent, that is, it will be compared with the preset current. If so, the contactor will be controlled to disconnect and the power supply will be stopped. If not, it will be further determined whether Ia is equal to Ib; if not, the contactor will be controlled to disconnect and the power supply will be stopped. If it is equal, it will be further determined whether Ic is equal to 0A. If not, the contactor will be controlled to disconnect and the power supply will be stopped. If so, it will be further determined whether the network voltage and network current meet the standard, which is the preset standard. If not, the contactor will be controlled to disconnect and the power supply will be stopped. If so, the contactor will be kept closed and the power supply will continue. In the case of the control contactor disconnection, the steps of finding the cause and solving the problem are executed.

[0056] The serial numbers of the embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. Moreover, the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system, such as a set of computer-executable instructions, and although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be performed in a different order than shown here.

[0057] In the above embodiments of the present invention, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0058] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0059] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0060] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0061] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A power supply test device for a bogieless rail vehicle, characterized in that: include: Conductive track (1); A plurality of insulating bogies (2), each of the plurality of insulating bogies (2) being mounted on the conductive rail (1), the plurality of insulating bogies (2) being spaced apart along the length direction of the conductive rail (1), and when a bogie-less rail vehicle (10) is mounted on the plurality of insulating bogies (2), the plurality of insulating bogies (2) insulate the conductive rail (1) from the bogie-less rail vehicle (10); A current receiving current detection device (3), the current receiving current detection device (3) having a first connection end and a second connection end, the first connection end of the current receiving current detection device (3) being used to connect to the positive electrode of the power supply (11), and the second connection end of the current receiving current detection device (3) being used to connect to the positive busbar (102) of the bogieless rail vehicle (10); A plurality of return current detection devices (4), each of the return current detection devices (4) having a third connection end and a fourth connection end, the fourth connection end of each of the return current detection devices (4) being connected to the conductive rail (1), and the third connection end of each of the return current detection devices (4) being used for one-to-one connection with the return busbar (103) of each carriage (101) of the bogieless rail vehicle (10); The current receiving current detection device (3) comprises a switch device, and the switch device controls the conduction or disconnection between the first connection end and the second connection end.

2. The power supply test device for a bogieless rail vehicle according to claim 1, characterized in that: The receiving current detection device (3) and / or the return current detection device (4) include a leakage protection device.

3. The power supply test device for a bogieless rail vehicle according to claim 1, characterized in that: The power supply test device for the bogie-less rail vehicle further comprises: A plurality of common ground protection devices (5), each of the common ground protection devices (5) having a fifth connection end and a sixth connection end, and the sixth connection end of each of the common ground protection devices (5) being grounded.

4. The power supply test device for a bogieless rail vehicle according to any one of claims 1 to 3, characterized in that: The insulating bogie (2) comprises: A bogie body (21), the bogie body (21) being mounted on the conductive track (1); An insulating protective member (22) is provided at an end of the bogie body (21) away from the conductive rail (1), and when the bogie-less rail vehicle (10) is mounted on a plurality of insulating bogies (2), the insulating protective member (22) of each insulating bogie (2) is in contact with the bogie-less rail vehicle (10).

5. A power supply test method for a bogieless rail vehicle, used for the power supply test device for a bogieless rail vehicle according to any one of claims 1 to 4, characterized in that: include: Installing a bogie-less rail vehicle (10) on a plurality of insulating bogies (2); Connecting the first connection end of the receiving current detection device (3) to the positive electrode of the power supply (11), connecting the second connection end of the receiving current detection device (3) to the positive busbar (102) of the bogie-less rail vehicle (10), connecting the third connection ends of the plurality of return current detection devices (4) to the return busbars (103) of the respective carriages (101) of the bogie-less rail vehicle (10) in a one-to-one correspondence, and connecting the negative electrode of the power supply (11) to the conductive rail (1); Acquiring a first current detected by the receiving current detection device (3) and a plurality of second currents detected by the plurality of return current detection devices (4) when the electrical system in each carriage (101) is in operation; determining whether an electrical system of the bogieless rail vehicle (10) has a fault based on at least the first current and a plurality of the second currents, The power supply test method for a bogie-less rail vehicle further comprises: controlling a switch device to cut off when it is determined that a fault exists in the electrical system of the bogie-less rail vehicle (10).

6. The power supply test method for a bogieless rail vehicle according to claim 5, characterized in that: Determining whether an electrical system of the bogieless rail vehicle (10) has a fault based on at least the first current and a plurality of the second currents comprises: determining whether the sum of all second currents is equal to the first current; When the sum of all the second currents is not equal to the first current, it is determined that a fault exists in the electrical system of the bogieless rail vehicle (10).

7. The power supply test method for a bogieless rail vehicle according to claim 5, characterized in that: The power supply test method for the bogie-less rail vehicle further comprises: determining whether the first current is greater than a preset current; When the first current is greater than the preset current, it is determined that a fault exists in the electrical system of the bogieless rail vehicle (10).

8. The power supply test method for a bogieless rail vehicle according to claim 5, characterized in that: The power supply test device for a bogie-less rail vehicle is the power supply test device for a bogie-less rail vehicle according to claim 4, and the power supply test method for a bogie-less rail vehicle further comprises: Determine whether the current detected by each common ground protection device (5) is 0A; When the current detected by any one of the common ground protection devices (5) is not 0A, it is determined that a fault exists in the electrical system of the bogieless rail vehicle (10).

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