Insulation test auxiliary device and insulation test system

Abstract

The invention provides an insulation test auxiliary device and an insulation test system, and the auxiliary device comprises a positive electrode connection port, a negative electrode connection port, a plurality of test ports, a plurality of first switches, a plurality of second switches, and a control module. Wherein the plurality of first switches are respectively connected in series between the positive electrode connection port and the plurality of test ports, and the plurality of second switches are respectively connected in series between the negative electrode connection port and the plurality of test ports; and the control module is used for controlling the on-off of the plurality of first switches and the plurality of second switches, and carrying out an insulation test among the plurality of test targets by using the insulation resistance tester. According to the insulation test auxiliary device and the insulation test system disclosed by the invention, the insulation test among a plurality of test targets can be realized, so that a large number of wire disassembling and wiring processes are omitted, the efficiency of the insulation test is effectively improved, and the cost of the insulation test is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of insulation testing, and in particular to an insulation testing auxiliary device and an insulation testing system. Background Art

[0002] The insulation between cables arranged in the same area is a crucial indicator of proper circuit operation. Excessively low cable insulation resistance can lead to equipment failure or safety incidents such as electric shock. Currently, insulation testing can only achieve a single test target, and each test requires rewiring and unwiring the cables, a cumbersome process. This is particularly time-consuming and labor-intensive when multiple test targets are involved. Summary of the Invention

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an object of the present disclosure is to provide an insulation test auxiliary device and an insulation test system.

[0005] To achieve the above-mentioned purpose, the first aspect of the present disclosure provides an insulation test auxiliary device, comprising: a positive connection port, a negative connection port, multiple test ports, multiple first switches, multiple second switches and a control module; wherein the positive connection port is used to be connected to the positive pole of an insulation resistance tester, and the negative connection port is used to be connected to the negative pole of the insulation resistance tester, and the multiple test ports are used to be connected to multiple test targets respectively; multiple first switches are respectively connected in series between the positive connection port and the multiple test ports, and multiple second switches are respectively connected in series between the negative connection port and the multiple test ports; the signal output end of the control module is respectively connected to the signal input end of the multiple first switches and the signal input end of the multiple second switches, and the control module is used to control the on and off of the multiple first switches and the multiple second switches, and use the insulation resistance tester to perform insulation testing between the multiple test targets.

[0006] Optionally, the control module has a first state, and when in the first state, the control module controls one of the first switches to be turned on, and controls at least one of the second switches to be turned on, and the turned-on second switch and the first switch are not connected in parallel.

[0007] Optionally, the auxiliary device also includes: multiple first buttons, which are respectively connected to multiple signal input terminals of the control module, and the multiple first buttons correspond one-to-one to the multiple first switches; wherein, when the first button inputs a signal, the control module switches to the first state, and controls the first switch corresponding to the first button to be turned on, and controls at least one of the second switches to be turned on.

[0008] Optionally, the auxiliary device further includes: a junction box, wherein the first switch, the second switch and the control module are respectively arranged in the junction box, and the positive connection port, the negative connection port and the test port are respectively arranged on the junction box.

[0009] Optionally, the auxiliary device also includes: a first wiring, the first end of the first wiring is connected to the positive connection port, and the second end of the first wiring is used to be connected to the positive pole of the insulation resistance tester; a second wiring, the first end of the second wiring is connected to the negative connection port, and the second end of the second wiring is used to be connected to the negative pole of the insulation resistance tester; multiple third wirings, the first ends of the multiple third wirings are respectively connected to the multiple test ports, and the second ends of the multiple third wirings are respectively used to be connected to the multiple test targets.

[0010] Optionally, the auxiliary device also includes: a ground port and a third switch; wherein, the ground port is used to be connected to the ground, and the third switch is connected in series between the negative connection port and the ground port; the signal output end of the control module is connected to the signal input end of the third switch, and the control module is used to control the on and off of multiple first switches, multiple second switches and the third switch, and use the insulation resistance tester to perform insulation testing between the test target and the ground.

[0011] Optionally, the control module has a second state, and in the second state, the control module controls at least one of the first switches to be turned on, controls all of the second switches to be turned off, and controls the third switch to be turned on.

[0012] Optionally, the auxiliary device further includes: a second button, the second button being connected to the signal input end of the control module; wherein, when the second button inputs a signal, the control module switches to the second state.

[0013] Optionally, the auxiliary device further includes: a fourth wiring, a first end of the fourth wiring is connected to the ground port, and a second end of the fourth wiring is used to be connected to the ground.

[0014] A second aspect of the present disclosure provides an insulation testing system, comprising: an insulation resistance tester and an insulation testing auxiliary device as provided in the first aspect of the present disclosure.

[0015] The technical solution provided by the present disclosure may have the following beneficial effects:

[0016] When the positive connection port is connected to the positive pole of the insulation resistance tester, and the negative connection port is connected to the negative pole of the insulation resistance tester, and multiple test ports are respectively connected to multiple test targets, the control module can utilize the on-off control of multiple first switches and multiple second switches, and cooperate with the pressurization of the insulation resistance tester to realize insulation testing between multiple test targets, thereby eliminating a large number of wiring and wiring processes, thereby effectively improving the efficiency of insulation testing and reducing the cost of insulation testing.

[0017] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 1 is a circuit diagram of an insulation test auxiliary device according to an embodiment of the present disclosure;

[0020] As shown in the figure: 1. Positive connection port, 2. Negative connection port, 3. Test port, 4. Ground port, 5. First switch, 6. Second switch, 7. Third switch, 8. First connection, 9. Second connection, 10. Third connection, 11. Fourth connection;

[0021] 100. Insulation resistance tester. DETAILED DESCRIPTION

[0022] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present disclosure and are not to be construed as limiting the present disclosure. On the contrary, the embodiments of the present disclosure include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0023] like Figure 1As shown, an embodiment of the present disclosure proposes an insulation test auxiliary device, comprising: a positive connection port 1, a negative connection port 2, a plurality of test ports 3, a plurality of first switches 5, a plurality of second switches 6, and a control module (not shown in the figure). Among them, the positive connection port 1 is used to be connected to the positive pole of the insulation resistance tester 100, and the negative connection port 2 is used to be connected to the negative pole of the insulation resistance tester 100, the plurality of test ports 3 are used to be connected to a plurality of test targets respectively, the plurality of first switches 5 are respectively connected in series between the positive connection port 1 and the plurality of test ports 3, and the plurality of second switches 6 are respectively connected in series between the negative connection port 2 and the plurality of test ports 3, the signal output end of the control module is respectively connected to the signal input end of the plurality of first switches 5 and the signal input end of the plurality of second switches 6, and the control module is used to control the on and off of the plurality of first switches 5 and the plurality of second switches 6, and use the insulation resistance tester 100 to perform insulation testing between the plurality of test targets.

[0024] It can be understood that since multiple first switches 5 are respectively connected in series between the positive connection port 1 and the multiple test ports 3, the first switches 5 can selectively conduct the path between the positive connection port 1 and the test port 3, and since multiple second switches 6 are respectively connected in series between the negative connection port 2 and the multiple test ports 3, the second switches 6 can selectively conduct the path between the negative connection port 2 and the test port 3.

[0025] Therefore, when the positive connection port 1 is connected to the positive pole of the insulation resistance tester 100, and the negative connection port 2 is connected to the negative pole of the insulation resistance tester 100, and multiple test ports 3 are respectively connected to multiple test targets, the control module can utilize the on-off control of multiple first switches 5 and multiple second switches 6, and cooperate with the pressurization of the insulation resistance tester 100 to realize insulation testing between multiple test targets, thereby eliminating a large number of wiring and wiring processes, thereby effectively improving the efficiency of insulation testing and reducing the cost of insulation testing.

[0026] It should be noted that the insulation resistance tester 100 (also known as a megohmmeter or megohmmeter) is an instrument used to measure the resistance of insulating materials such as electrical equipment, cables, and transformers. It is primarily used to evaluate insulation performance and ensure safe operation of the equipment. Specifically, the instrument generates a high DC voltage (typically 500V, 1000V, 2500V, or higher) and applies it to both ends of the object being tested. The insulation resistance is calculated by measuring the leakage current (Ohm's law: R = U / I). The specific type of insulation resistance tester 100 can be set according to actual needs and is not limited to this.

[0027] The positive connection port 1 is used to connect to the positive electrode of the insulation resistance tester 100 to form a test loop on the test target. The specific type of the positive connection port 1 can be set according to actual needs and is not limited to this.

[0028] The negative electrode connection port 2 is used to be connected to the negative electrode of the insulation resistance tester 100 so as to form a test loop on the test target. The specific type of the negative electrode connection port 2 can be set according to actual needs and is not limited thereto.

[0029] The first switch 5 is used to selectively conduct the path between the positive electrode connection port 1 and the test port 3 . The specific type of the first switch 5 can be set according to actual needs and is not limited thereto.

[0030] The second switch 6 is used to selectively conduct the path between the negative electrode connection port 2 and the test port 3 . The specific type of the second switch 6 can be set according to actual needs and is not limited thereto.

[0031] The test port 3 is used to connect to the test target so as to form a test loop on the test target. The specific type of the test port 3 can be set according to actual needs and is not limited thereto.

[0032] Among them, the number of test ports 3, first switches 5 and second switches 6 corresponds to each other. The specific number can be set according to actual needs and is not limited to this. For example, the number of test ports 3, first switches 5 and second switches 6 can be three, four, five, six, etc. Taking six as an example, that is, each time wiring is performed, insulation testing can be achieved between six test targets.

[0033] The test target is the target part that needs insulation test, such as cables, shielding layers, etc.

[0034] The auxiliary device of this embodiment has a withstand voltage rating of no less than 5000V and an arc extinguishing function.

[0035] In some embodiments, the control module has a first state, and in the first state, the control module controls a first switch 5 to be turned on, and controls at least one second switch 6 to be turned on, and the turned-on second switch 6 and the first switch 5 are not connected in parallel.

[0036] It can be understood that when in the first state, the control module controls a first switch 5 to be turned on, and controls at least one second switch 6 to be turned on, so as to realize the insulation test between a test target and at least one other test target, thereby effectively improving the efficiency of the insulation test and reducing the cost of the insulation test.

[0037] For example, the number of first switches 5 is set to six, and they correspond to six test targets respectively. The control module controls the first first switch 5 to be turned on, and controls the other five second switches 6 to be turned on, thereby realizing the insulation test between the first test target and the other five test targets; thereafter, the control module controls the second first switch 5 to be turned on, and controls the other five second switches 6 to be turned on, thereby realizing the insulation test between the second test target and the other five test targets. Based on this, through the control of the control module, the insulation test between the six test targets can be realized while eliminating a large number of wiring and wiring processes. Compared with the existing method of independently testing a single test target and performing wiring and wiring after the test is completed before the next test target can be tested, the auxiliary device of this embodiment can greatly improve the test efficiency and reduce labor costs.

[0038] In some embodiments, the auxiliary device further includes: a plurality of first buttons, each of which is connected to a plurality of signal input terminals of the control module, and each of the plurality of first buttons corresponds to a plurality of first switches 5. When a first button inputs a signal, the control module switches to a first state and controls the first switch 5 corresponding to the first button to be turned on, and controls at least one second switch 6 to be turned on.

[0039] It can be understood that when the first button inputs a signal, the control module switches to the first state, and controls the first switch 5 corresponding to the first button to be turned on, and controls at least one second switch 6 to be turned on. Thus, by controlling multiple first buttons in sequence, insulation testing between each test target and other test targets can be achieved, thereby simplifying the test operation while achieving precise control and making it more convenient to use.

[0040] It should be noted that the first button is used to control the corresponding path conduction using the control module to achieve insulation testing between the corresponding test target and other test targets. The specific type of the first button can be set according to actual needs and is not limited to this.

[0041] For example, the number of first buttons is set to six, corresponding to six test targets respectively. When the first button is pressed and generates an input signal, the control module controls the first first switch 5 to be turned on, and controls the other five second switches 6 to be turned on. Thus, the insulation test between the first test target and the other five test targets can be realized.

[0042] In some embodiments, the auxiliary device further includes: a junction box, the first switch 5, the second switch 6 and the control module are respectively arranged in the junction box, and the positive connection port 1, the negative connection port 2 and the test port 3 are respectively arranged on the junction box.

[0043] It can be understood that since the first switch 5, the second switch 6 and the control module are respectively arranged in the junction box, and the positive connection port 1, the negative connection port 2 and the test port 3 are respectively arranged on the junction box, the first switch 5, the second switch 6, the control module, the positive connection port 1, the negative connection port 2 and the test port 3 can be integrated using the junction box, making it more flexible and convenient to use.

[0044] It should be noted that the junction box is used for integrated protection of the first switch 5, the second switch 6 and the control module, as well as the load-bearing support of the positive connection port 1, the negative connection port 2 and the test port 3. The specific type of the junction box can be set according to actual needs and is not restricted.

[0045] like Figure 1 As shown, in some embodiments, the auxiliary device further includes: a first wiring 8, a second wiring 9 and a plurality of third wirings 10, the first end of the first wiring 8 is connected to the positive connection port 1, and the second end of the first wiring 8 is used to be connected to the positive pole of the insulation resistance tester 100, the first end of the second wiring 9 is connected to the negative connection port 2, and the second end of the second wiring 9 is used to be connected to the negative pole of the insulation resistance tester 100, the first ends of the plurality of third wirings 10 are respectively connected to the plurality of test ports 3, and the second ends of the plurality of third wirings 10 are used to be respectively connected to the plurality of test targets.

[0046] It can be understood that since the first end of the first wiring 8 is connected to the positive connection port 1, and the second end of the first wiring 8 is connected to the positive pole of the insulation resistance tester 100, the first wiring 8 can achieve connection and conduction between the positive connection port 1 and the positive pole of the insulation resistance tester 100, thereby satisfying the testing function of the insulation resistance tester 100 on the test target.

[0047] Since the first end of the second wiring 9 is connected to the negative connection port 2, and the second end of the second wiring 9 is connected to the negative pole of the insulation resistance tester 100, the second wiring 9 can achieve connection and conduction between the negative connection port 2 and the negative pole of the insulation resistance tester 100, thereby satisfying the testing function of the insulation resistance tester 100 on the test target.

[0048] Since the first end of the third wiring 10 is connected to the test port 3, and the second end of the third wiring 10 is connected to the test target, the third wiring 10 can achieve connection and conduction between the test port 3 and the test target, thereby satisfying the test function of the insulation resistance tester 100 on the test target.

[0049] It should be noted that the first wiring 8, the second wiring 9 and the third wiring 10 are respectively used for the conduction of the path. The specific types of the first wiring 8, the second wiring 9 and the third wiring 10 can be set according to actual needs and are not limited to this. For example, the first wiring 8, the second wiring 9 and the third wiring 10 can all be wires, and the two ends can be configured with connecting structures such as wire clamps and plugs.

[0050] like Figure 1 As shown, in some embodiments, the auxiliary device further includes: a ground port 4 and a third switch 7, wherein the ground port 4 is used to be connected to the ground, and the third switch 7 is connected in series between the negative connection port 2 and the ground port 4, the signal output end of the control module is connected to the signal input end of the third switch 7, and the control module is used to control the on and off of multiple first switches 5, multiple second switches 6 and the third switch 7, and use the insulation resistance tester 100 to perform insulation testing between the test target and the ground.

[0051] It can be understood that since the third switch 7 is connected in series between the negative connection port 2 and the ground port 4, the third switch 7 can selectively conduct the path between the negative connection port 2 and the ground port 4, and when the ground port 4 is connected to the ground, and the positive connection port 1 is connected to the positive pole of the insulation resistance tester 100, and the negative connection port 2 is connected to the negative pole of the insulation resistance tester 100, the control module can utilize the on-off control of multiple first switches 5, multiple second switches 6 and the third switch 7, and cooperate with the pressurization of the insulation resistance tester 100 to achieve insulation testing between the test target and the ground, thereby eliminating a large number of wiring and wiring processes, thereby effectively improving the efficiency of the insulation test and reducing the cost of the insulation test.

[0052] It should be noted that the ground port 4 is used to be connected to the ground so as to form a test loop on the test target. The specific type of the ground port 4 can be set according to actual needs and is not limited thereto.

[0053] The third switch 7 is used to selectively conduct the path between the negative electrode connection port 2 and the ground port 4. The specific type of the third switch 7 can be set according to actual needs and is not limited thereto.

[0054] In some embodiments, the control module has a second state, and in the second state, the control module controls at least one first switch 5 to be turned on, controls all second switches 6 to be turned off, and controls the third switch 7 to be turned on.

[0055] It can be understood that when in the second state, the control module controls at least one first switch 5 to be turned on, controls all second switches 6 to be turned off, and controls the third switch 7 to be turned on, so as to achieve insulation testing between at least one test target and the ground, thereby effectively improving the efficiency of the insulation test and reducing the cost of the insulation test.

[0056] For example, six first switches 5 are set, each corresponding to six test targets. The control module controls all six first switches 5 to be turned on, controls all six second switches 6 to be turned off, and controls the third switch 7 to be turned on. Thus, the insulation test between the six test targets and the ground can be achieved. Based on this, through the control of the control module, the insulation test between the six test targets and the ground can be achieved while eliminating a large number of wiring and wiring processes. Compared with the existing method of independently testing a single test target and then disconnecting and wiring after the test is completed before testing the next test target, the auxiliary device of this embodiment can greatly improve test efficiency and reduce labor costs.

[0057] In some embodiments, the auxiliary device further includes: a second button connected to a signal input terminal of the control module, wherein when the second button inputs a signal, the control module switches to the second state.

[0058] It can be understood that when the second button inputs a signal, the control module switches to the second state and controls at least one first switch 5 to be turned on, all second switches 6 to be turned off, and the third switch 7 to be turned on. Thus, through the control of multiple second buttons, the insulation test between the test target and the ground can be achieved, thereby simplifying the test operation while achieving precise control and making it more convenient to use.

[0059] It should be noted that the second button is used to control the corresponding path conduction using the control module to achieve insulation testing between the corresponding test target and the ground. The specific type of the second button can be set according to actual needs and is not limited to this.

[0060] For example, the second button is set to one, corresponding to the insulation test of six test targets to the ground. When the second button is pressed and an input signal is generated, the control module controls the six first switches 5 to be turned on, and controls the six second switches 6 to be turned off, and the third switch 7 to be turned on. Thus, the insulation test between the six test targets and the ground can be realized.

[0061] like Figure 1 As shown, in some embodiments, the auxiliary device further includes: a fourth wire 11, a first end of the fourth wire 11 is connected to the ground port 4, and a second end of the fourth wire 11 is used to be connected to the ground.

[0062] It can be understood that since the first end of the fourth wiring 11 is connected to the ground port 4 and the second end of the fourth wiring 11 is connected to the ground, the fourth wiring 11 can achieve connection and conduction between the ground port 4 and the ground, thereby satisfying the testing function of the insulation resistance tester 100 on the test target.

[0063] It should be noted that the fourth wiring 11 is used for conducting the passage. The specific type of the fourth wiring 11 can be set according to actual needs and is not limited to this. For example, the fourth wiring 11 can all be wires, and both ends can be configured with connection structures such as wire clamps and plugs.

[0064] The auxiliary device of this embodiment may have the following beneficial effects:

[0065] (1) Save time.

[0066] For example, if the equipment preparation time t1 is 5 minutes, the wiring time t2 is 2 minutes, the single test and result recording time t3 is 2 minutes, and the number of cores n in the cable (test target) is 6, then the calculation is:

[0067] The time consumed by the insulation test in the prior art is:

[0068]

[0069] Further,

[0070] After using the auxiliary device of this embodiment, the insulation test consumes time T1:

[0071] T1=t1+n×(t2+t3);

[0072] Furthermore, T1=5+6×(2+2)=29 min.

[0073] It can be seen that after using the auxiliary device of this embodiment, 36 minutes of time is saved.

[0074] Therefore, using the auxiliary device of this embodiment can save a lot of time. The more cores the cable has, the more time can be saved.

[0075] (2) Save manpower.

[0076] According to the requirement that at least two people are required to connect the cables, the prior art requires reconnecting the cables after each measurement. For a 6-core cable, 15 connections are required to measure the insulation between the cables. However, using the auxiliary device of this embodiment only requires one connection, and then the measurement target can be selected according to the status.

[0077] It can be seen from the above that the use of the auxiliary device of this embodiment can bring better results, improve work efficiency and also improve economic benefits.

[0078] The embodiment of the present disclosure further provides an insulation testing system, comprising: an insulation resistance tester 100 and an insulation testing auxiliary device according to the embodiment of the present disclosure.

[0079] When the positive connection port 1 is connected to the positive pole of the insulation resistance tester 100, and the negative connection port 2 is connected to the negative pole of the insulation resistance tester 100, and the multiple test ports 3 are respectively connected to multiple test targets, the control module can utilize the on-off control of multiple first switches 5 and multiple second switches 6, and cooperate with the pressurization of the insulation resistance tester 100 to realize insulation testing between multiple test targets, thereby eliminating a large amount of wiring and wiring processes, thereby effectively improving the efficiency of insulation testing and reducing the cost of insulation testing.

[0080] It should be noted that, in the description of this disclosure, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of this disclosure, unless otherwise specified, the meaning of "plurality" is two or more.

[0081] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0082] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0083] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. An insulation test auxiliary device, characterized in that: include: A positive electrode connection port, a negative electrode connection port, a plurality of test ports, a plurality of first switches, a plurality of second switches and a control module; The positive connection port is used to connect to the positive electrode of the insulation resistance tester, and the negative connection port is used to connect to the negative electrode of the insulation resistance tester, and the multiple test ports are used to connect to multiple test targets respectively; A plurality of the first switches are respectively connected in series between the positive electrode connection port and the plurality of the test ports, and a plurality of the second switches are respectively connected in series between the negative electrode connection port and the plurality of the test ports; The signal output end of the control module is respectively connected to the signal input end of multiple first switches and the signal input end of multiple second switches, and the control module is used to control the on and off of multiple first switches and multiple second switches, and use the insulation resistance tester to perform insulation testing between multiple test targets.

2. The insulation test auxiliary device according to claim 1, characterized in that: The control module has a first state, and in the first state, the control module controls one of the first switches to be turned on, and controls at least one of the second switches to be turned on, and the turned-on second switch is not connected in parallel with the first switch.

3. The insulation test auxiliary device according to claim 2, characterized in that: The auxiliary device further comprises: a plurality of first buttons, each of which is connected to a plurality of signal input terminals of the control module, and each of the plurality of first buttons corresponds to each of the plurality of first switches; When the first button inputs a signal, the control module switches to the first state, controls the first switch corresponding to the first button to be turned on, and controls at least one of the second switches to be turned on.

4. The insulation test auxiliary device according to claim 1, characterized in that: The auxiliary device further comprises: A junction box, wherein the first switch, the second switch and the control module are respectively arranged in the junction box, and the positive electrode connection port, the negative electrode connection port and the test port are respectively arranged on the junction box.

5. The insulation test auxiliary device according to claim 1, characterized in that: The auxiliary device further comprises: a first wiring, wherein a first end of the first wiring is connected to the positive connection port, and a second end of the first wiring is used to be connected to the positive electrode of the insulation resistance tester; a second wiring, wherein a first end of the second wiring is connected to the negative electrode connection port, and a second end of the second wiring is used to be connected to the negative electrode of the insulation resistance tester; A plurality of third wires, wherein first ends of the plurality of third wires are respectively connected to the plurality of test ports, and second ends of the plurality of third wires are respectively connected to the plurality of test targets.

6. The insulation test auxiliary device according to any one of claims 1 to 5, characterized in that: The auxiliary device further comprises: A ground port and a third switch; Wherein, the ground port is used to be connected to the ground, and the third switch is connected in series between the negative electrode connection port and the ground port; The signal output end of the control module is connected to the signal input end of the third switch, and the control module is used to control the on and off of multiple first switches, multiple second switches and the third switch, and use the insulation resistance tester to perform insulation testing between the test target and the ground.

7. The insulation test auxiliary device according to claim 6, characterized in that: The control module has a second state, and in the second state, the control module controls at least one of the first switches to be turned on, controls all of the second switches to be turned off, and controls the third switch to be turned on.

8. The insulation test auxiliary device according to claim 7, characterized in that: The auxiliary device further comprises: a second button connected to a signal input terminal of the control module; When the second button inputs a signal, the control module switches to the second state.

9. The insulation test auxiliary device according to claim 6, characterized in that: The auxiliary device further comprises: A fourth wiring, wherein a first end of the fourth wiring is connected to the ground port, and a second end of the fourth wiring is used to be connected to the ground.

10. An insulation testing system, characterized in that: include: An insulation resistance tester and an insulation test auxiliary device according to any one of claims 1 to 9.

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