Automatic switching tool

Abstract

The utility model discloses an automatic switching tool, which includes a simulator interface; multiple groups of product interfaces that can be connected to multiple high-power controllers; a motor interface that can be connected to a motor; a power interface that can be connected to a power supply; a switching circuit, which connects the simulator interface, the product interface, the motor interface and the power interface, and switches the high-power controller to the motor or the power supply under the control of the power level simulator. By adopting the above-mentioned automatic switching tool, after the cables are installed, the corresponding tests can be performed on multiple high-power controllers. During the above-mentioned test process, the test of multiple high-power controllers can be achieved without plugging and unplugging the cables, and the above-mentioned test process is not affected by the technical level of the operator, which is convenient and fast, reduces auxiliary working hours, and effectively improves the test efficiency. In addition, during the test of multiple high-power controllers, there is no need to plug and unplug the cables, thereby extending the service life of the cables and the high-power controllers.

Description

Technical Field

[0001] The utility model relates to the technical field of testing work, in particular to an automatic switching tool. Background Art

[0002] At present, in the actual environmental stress screening test (ESS) of high-power controllers, manual switching of lines is usually adopted. During the manual switching of lines, the cables need to be plugged and unplugged many times, which takes a long time to test and has low test efficiency. In addition, the multiple plugging and unplugging of cables will also cause wear of the connectors. Utility Model Content

[0003] The utility model provides an automatic switching tool to increase testing efficiency and reduce cable wear.

[0004] In order to achieve the above object, the utility model discloses the following technical solutions:

[0005] The utility model provides an automatic switching tool for connecting a power level simulator and a high-power controller. The power level simulator can perform an actual environmental stress screening test on the high-power controller. The automatic switching tool includes:

[0006] A simulator interface that can be connected to the control line, power input line, and power output line of the power level simulator; the simulator interface includes a control interface, an input interface, and an output interface, the control interface is connected to the control line of the power level simulator, the input interface is connected to the power input line of the power level simulator, and the output interface is connected to the power output line of the power level simulator;

[0007] Multiple product interfaces capable of connecting to multiple high-power controllers;

[0008] A motor interface capable of being connected to a motor;

[0009] A power interface capable of being connected to a power source;

[0010] A switching circuit connects the simulator interface, the product interface, the motor interface and the power interface, and switches the high-power controller to the motor or the power supply under the control of the power level simulator.

[0011] In some embodiments, the switching circuit includes:

[0012] A copper wire row, one side of which is connected to the input interface;

[0013] A plurality of first relay groups, connections between the plurality of first relay groups and the copper wire bus, and output interfaces are respectively connected to the plurality of first relay groups in a one-to-one correspondence;

[0014] A serial port server, one end of the serial port server is connected to the control interface, and the other end of the serial port server is respectively connected to the plurality of first relay groups to implement communication switching between the input interface and the plurality of output interfaces;

[0015] A plurality of contactors, wherein every two contactors of the plurality of contactors are connected to a group of product interfaces to realize connection between the product interfaces and the power interface and the motor interface;

[0016] The second relay group is connected to the plurality of contactors to control the on and off of the plurality of contactors.

[0017] In some embodiments, the switching circuit further includes a power switch, and the power switch is used to control the power supply of the first relay group and the second relay group.

[0018] In some embodiments, the number of output interfaces is two, namely a first output interface and a second output interface;

[0019] The number of the first relay groups is two, namely the first relay group a and the first relay group b;

[0020] The number of the contactors is four, namely a first contactor, a second contactor, a third contactor and a fourth contactor;

[0021] The product interface includes a first product power interface, a first product motor interface, a second product power interface, and a second product motor interface;

[0022] The switching circuit includes:

[0023] A copper wire row, one side of which is connected to the input interface;

[0024] The first relay group a and the first relay group b, the connection between the first relay group a and the first relay group b and the copper wire bar, the first relay group a is connected to the first output interface, and the first relay group b is connected to the second output interface;

[0025] A serial port server, one end of the serial port server is connected to the control interface, and the other end of the serial port server is respectively connected to the first relay group a and the second relay group b, so as to realize the communication between the input interface and the first output interface, and the communication switching between the input interface and the second output interface;

[0026] Four contactors, the first contactor is connected to the power interface of the first product, the second contactor is connected to the motor interface of the first product, the third contactor is connected to the power interface of the second product, and the fourth contactor is connected to the motor interface of the second product;

[0027] The second relay group is connected with four contactors to control the on and off of the multiple contactors.

[0028] In some embodiments, the input interface and the output interface are male connectors.

[0029] In some embodiments, the control interface is a fiber optic network port, which is connected to a serial port server.

[0030] In some embodiments, the product interface is a male connector.

[0031] In some embodiments, the motor interface includes multiple groups of binding posts, each group of binding posts is connected to a motor power cable in three phases, and each group of binding posts includes three terminals.

[0032] In some embodiments, the power interface includes multiple groups of binding posts, each group is positively and negatively connected to a power input cable, and each group of binding posts includes three terminals.

[0033] In some embodiments, the automatic switching tool also includes a skylight.

[0034] In some embodiments, the automatic switching tool further includes a handle.

[0035] In some embodiments, the automatic switching tool further includes a shielding cover.

[0036] It can be seen from the above technical solution that when working, the control line, power input line, and power output line on the power level simulator are connected to the simulator interface of the automatic switching tool according to the cable identification, and then the product interface of multiple high-power controllers is connected to the automatic switching tool; the power level simulator is operated to perform random vibration and temperature cycle process functional performance tests on multiple high-power controllers. It can be seen that by adopting the above-mentioned automatic switching tool, after the cables are installed, the corresponding tests can be performed on multiple high-power controllers. During the above-mentioned test process, there is no need to plug and unplug the cables to achieve the test of multiple high-power controllers, and the above-mentioned test process is not affected by the technical level of the operator, which is convenient and fast, reduces auxiliary working hours, and effectively improves the test efficiency. In addition, during the test of multiple high-power controllers, there is no need to plug and unplug the cables, thereby extending the service life of the cables and high-power controllers. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are only some examples or embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work, and the utility model can also be applied to other similar scenarios based on the provided drawings. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0038] Figure 1 A schematic diagram of an automatic switching tool provided in an embodiment of the utility model;

[0039] Figure 2 An automatic switching tool circuit diagram provided by an embodiment of the utility model;

[0040] In the figure: 1-automatic switching tool, 2-power level simulator, 3-high power controller, 4-motor, 5-power supply;

[0041] 11-Simulator interface, 12-Product interface, 13-Motor interface, 14-Power interface, 15-Switching circuit;

[0042] 111 - control interface, 112 - input interface, 113 - output interface, 1131 - first output interface, 1132 - second output interface;

[0043] 121-first product power interface, 122-first product motor interface, 123-second product power interface, 124-second product motor interface;

[0044] 151-copper wire bus, 152-first relay group, 1521-first relay group a, 1522-first relay group b, 153-serial port server, 154-contactor, 155-second relay group, 156-power module, 157-power switch; 1541-first contactor, 1542-second contactor, 1543-third contactor, 1544-fourth contactor. DETAILED DESCRIPTION

[0045] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. The described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0046] See also Figure 1 and Figure 2 The utility model provides an automatic switching tool 1, which is used to connect a power level simulator 2 and a high-power controller 3. The power level simulator 2 can perform random vibration and temperature cycle process functional performance tests on the high-power controller 3. The automatic switching tool 1 includes: a simulator interface 11, multiple groups of product interfaces 12, a motor interface 13, a power supply interface 14 and a switching circuit 15.

[0047] The simulator interface 11 is used to connect with the control line, power input line, and power output line of the power level simulator 2; the simulator interface 11 includes a control interface 111, an input interface 112, and an output interface 113. The control interface 111 is connected with the control line of the power level simulator 2, the input interface 112 is connected with the power input line of the power level simulator 2, and the output interface 113 is connected with the power output line of the power level simulator 2. In some examples, the control interface 111 is a fiber optic network port, and the communication connection between the power level simulator 2 and the automatic switching tool 1 is realized through the fiber optic network port. In some examples, the input interface 112 and the output interface 113 are male connectors and / or female connectors. Specifically, the input interface 112 and the output interface 113 are J599 / 20WD35PLCV circular connector males.

[0048] Multiple groups of product interfaces 12 can be connected to multiple high-power controllers 3, and the product interfaces 12 are connected to the beat rate controllers one by one. Each group of product interfaces 12 includes a power interface 14 and a motor interface 13. The product interface 12 can be a male connector and / or a female connector.

[0049] The motor interface 13 can be connected to the motor 4 to achieve the connection between the high-power controller 3 and the motor 4. In some examples, the motor interface 13 includes multiple groups of terminals, each group of terminals is connected to a motor 4 power cable in three phases, and each group of terminals includes three terminals.

[0050] The power interface 14 can be connected to the power source 5. In some examples, the power interface 14 includes multiple groups of binding posts, each group is positively and negatively connected to one input cable of the power source 5, and each group of binding posts includes three terminals to achieve the connection between the high-power controller 3 and the power source 5. In some examples, two of the three terminals are used and one terminal is reserved.

[0051] The switching circuit 15 is connected to the simulator interface 11 , the product interface 12 , the motor interface 13 and the power interface 14 , and switches the high-power controller 3 to be connected to the motor 4 or the power supply 5 under the control of the power level simulator 2 .

[0052] During operation, the control line, power input line, and power output line on the power level simulator 2 are connected to the simulator interface 11 of the automatic switching fixture 1 according to the cable identification, and then the multiple high-power controllers 3 are connected to the product interface 12 of the automatic switching fixture 1; the power level simulator 2 is operated to perform random vibration and temperature cycle process functional performance tests on the multiple high-power controllers 3. It can be seen that by adopting the above-mentioned automatic switching fixture 1, after the cables are installed, the corresponding tests can be performed on the multiple high-power controllers 3. During the above-mentioned test process, the test of multiple high-power controllers 3 can be realized without plugging and unplugging the cables, and the above-mentioned test process is not affected by the technical level of the operator, which is convenient and fast, reduces auxiliary working hours, and effectively improves the test efficiency. In addition, during the test of multiple high-power controllers 3, there is no need to plug and unplug the cables, thereby extending the service life of the cables and the high-power controllers 3.

[0053] In the embodiment of the utility model, the automatic switching tool 1 cooperates with the power level simulator 2 to realize the connection and disconnection of the corresponding high-power controller 3, the motor 4 and the power supply 5. The core structure of the automatic switching tool 1 is a switching circuit 15. In some examples, the switching circuit 15 includes a copper wire bus 151, multiple first relay groups 152, a serial port server 153, multiple contactors 154 and a second relay group 155, wherein one side of the copper wire bus 151 is connected to the input interface 112; multiple first relay groups 152 are connected to the copper wire bus 151, and the output interface 113 is respectively connected to the multiple first relay groups 152 in a one-to-one correspondence; one end of the serial port server 153 is connected to the control interface 111, and the other end of the serial port server 153 is respectively connected to the multiple first relay groups 152 to realize the communication switching between the input interface 112 and the multiple output interfaces 113; every two contactors 154 in the multiple contactors 154 are connected to a group of product interfaces 12 to realize the connection between the product interface 12 and the power interface 14 and the motor interface 13; the second relay group 155 is connected to the multiple contactors 154 to control the on and off of the multiple contactors 154.

[0054] In order to improve the safety performance of the switching tool, the switching circuit 15 also includes a power switch 157, which is used to control the power supply of the first relay group 152 and the second relay group 155. Specifically, the power switch 157 controls the on and off of the power module of the switching circuit 15 to achieve the power supply status of the first relay group 152 and the second relay group 155.

[0055] Taking the automatic switching tool 1 being able to implement ESS testing of two high-power controllers 3 as an example, the two high-power controllers 3 include a first high-power controller 3 and a second high-power controller 3 .

[0056] There are two output interfaces 113, namely the first output interface 1131 and the second output interface 1132, wherein the first output interface 1131 is connected to the first power output line of the power level simulator 2, and the second output interface 1132 is connected to the second power output line of the power level simulator 2; there are two first relay groups 152, namely the first relay group a1521 and the first relay group b1522; there are four contactors 154, namely the first contactor 1541, the second contactor 1542, the third contactor 1543 and the fourth contactor 1544; the product interface 12 includes a first product power interface 121, a first product motor interface 122, a second product power interface 123 and a second product motor interface 124.

[0057] Specifically, the switching circuit 15 includes: a copper wire bus 151, a first relay group a1521, a first relay group b1522, a serial port server 153, four contactors 154 and a second relay group 155. One side of the copper wire bus 151 is connected to the input interface 112; the first relay group a1521 and the first relay group b1522 are connected to the copper wire bus 151, the first relay group a1521 is connected to the first output interface 1131, and the first relay group b1522 is connected to the second output interface 1132; one end of the serial port server 153 is connected to the control interface 111, and the other end of the serial port server 153 is respectively connected to the first relay group a1521 and the second relay group 155b to realize communication between the input interface 112 and the first output interface 1131, and communication switching between the input interface 112 and the second output interface 1132; in some examples, the serial port server 153 is an RS485 four-serial port server 153. The first contactor 1541 is connected to the first product power interface 121, the second contactor 1542 is connected to the first product motor interface 122, the third contactor 1543 is connected to the second product power interface 123, and the fourth contactor 1544 is connected to the second product motor interface 124; the second relay group 155 is connected to the four contactors 154 to control the on and off of multiple contactors 154.

[0058] The automatic switching tool 1 includes a first switching mode, a second switching mode and a shutdown mode, wherein in the first switching mode, the first relay group 152 realizes the communication connection between the power level simulator 2 and the first high power controller 3; the second relay group 155 realizes the connection between the first high power controller 3 and the motor 4 and the power supply 5 by controlling the first contactor 1541, the second contactor 1542, the third contactor 1543 and the fourth contactor 1544. In the first switching mode, the power level simulator 2 simulates the corresponding working conditions to perform a test in the ESS test on the first high power controller 3.

[0059] In the second switching mode, the first relay group 152 realizes the communication connection between the power level simulator 2 and the second high power controller 3; the second relay group 155 realizes the connection between the second high power controller 3 and the motor 4 and the power supply 5 by controlling the first contactor 1541, the second contactor 1542, the third contactor 1543 and the fourth contactor 1544. In the second switching mode, the power level simulator 2 simulates the corresponding working conditions to perform a test in the ESS test on the second high power controller 3.

[0060] In shutdown mode, the first relay group 152 disconnects the communication connection between the power level simulator 2 and the first high power controller 3 and the second high power controller 3; or the second relay group 155 disconnects the electrical connection between the power supply 5, the motor 4 and the first high power controller 3 and the second high power controller 3.

[0061] The ESS test includes a random vibration functional performance test and a temperature cycle process functional performance test. The automatic switching tool 1 switches to the first switching mode, and the power level simulator 2 performs a random vibration functional performance test on the first high power controller 3; the automatic switching tool 1 switches to the second switching mode, and the power level simulator 2 performs a random vibration functional performance test on the second high power controller 3; the automatic switching tool 1 switches to the first switching mode, and the power level simulator 2 performs a temperature cycle process functional performance test on the first high power controller 3; the automatic switching tool 1 switches to the second switching mode, and the power level simulator 2 performs a temperature cycle process functional performance test on the second high power controller 3.

[0062] The above description only takes two functional tests as examples. In some other examples of the utility model, the first high-power controller 3 can be subjected to random vibration functional performance test and temperature cycle process functional performance test in sequence, or the second high-power controller 3 can be subjected to random vibration functional performance test and temperature cycle process functional performance test in sequence. Those skilled in the art can adjust the mode of the automatic switching tool 1 according to specific test requirements.

[0063] In some examples, the automatic switching tool 1 also includes a skylight, and the indicator lights on the first relay group 152 and the second relay group 155 can be observed through the skylight to determine the working status of the first relay group 152 and the second relay group 155.

[0064] In some examples, the automatic switching tool 1 further includes a handle, which can be used to facilitate the transportation of the automatic switching tool 1. In addition, in order not to affect the appearance, the handle can also be a folding handle.

[0065] In some examples, the automatic switching tool 1 further includes a shielding cover, and the shielding cover can be provided to reduce interference of external signals on the first relay group 152 and the second relay group 155 of the automatic switching tool 1 .

[0066] In order to facilitate the understanding of the above technical solutions of the present invention, the wiring methods of the above-mentioned electronic components are described in detail below, taking communication wiring, relay wiring and contactor wiring as examples for description, see Table 1, Table 2 and Table 3, wherein Table 1 is communication wiring, Table 2 is relay wiring, and Table 3 is contactor wiring.

[0067] Table 1: Communication wiring

[0068]

[0069]

[0070] Table 2 Relay wiring

[0071]

[0072]

[0073]

[0074]

[0075]

[0076]

[0077] Table 3 Contactor wiring

[0078]

[0079]

[0080] In the above, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0081] In the description of the embodiments of the present invention, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in this article is only a way to describe the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0082] It should be noted that, for the convenience of description, only the parts related to the utility model are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the utility model can be combined with each other.

[0083] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. The scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but also should cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the concept of the above-mentioned utility model. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the utility model (but not limited to) to form a technical solution.

Claims

1. An automatic switching tool for connecting a power level simulator and a high-power controller, wherein the power level simulator can perform an actual environmental stress screening test on the high-power controller, characterized in that: The automatic switching tool comprises: A simulator interface capable of being connected to a control line, a power input line, and a power output line of a power level simulator; the simulator interface comprises a control interface, an input interface, and an output interface, the control interface being connected to the control line of the power level simulator, the input interface being connected to the power input line of the power level simulator, and the output interface being connected to the power output line of the power level simulator; Multiple product interfaces capable of connecting to multiple high-power controllers; A motor interface capable of being connected to a motor; A power interface capable of being connected to a power source; A switching circuit connects the simulator interface, the product interface, the motor interface and the power interface, and switches the high-power controller to be connected with the motor or the power supply under the control of the power level simulator.

2. The automatic switching tool as claimed in claim 1, characterized in that: The switching circuit comprises: A copper wire row, one side of which is connected to the input interface; A plurality of first relay groups, the plurality of first relay groups are connected to the copper wire bar, and the output interface is respectively connected to the plurality of first relay groups in a one-to-one correspondence; A serial port server, one end of which is connected to the control interface, and the other end of which is respectively connected to the plurality of first relay groups, so as to realize communication switching between the input interface and the plurality of output interfaces; A plurality of contactors, wherein every two contactors of the plurality of contactors are connected to a group of product interfaces to realize connection between the product interfaces and the power interface and the motor interface; A second relay group, wherein the second relay group is connected to the plurality of contactors to control the on and off of the plurality of contactors.

3. The automatic switching tool as claimed in claim 2, characterized in that: The switching circuit further includes a power switch, and the power switch is used to control the power supply of the first relay group and the second relay group.

4. The automatic switching tool as claimed in claim 3, characterized in that: The number of the output interfaces is two, namely a first output interface and a second output interface; The number of the first relay groups is two, namely a first relay group a and a first relay group b; The number of the contactors is four, namely a first contactor, a second contactor, a third contactor and a fourth contactor; The product interface includes a first product power interface, a first product motor interface, a second product power interface and a second product motor interface; The switching circuit comprises: A copper wire row, one side of which is connected to the input interface; A first relay group a and a first relay group b, the first relay group a and the first relay group b are connected to the copper wire bus, the first relay group a is connected to the first output interface, and the first relay group b is connected to the second output interface; A serial port server, one end of which is connected to the control interface, and the other end of which is connected to the first relay group a and the second relay group b, respectively, so as to realize communication between the input interface and the first output interface, and communication switching between the input interface and the second output interface; Four contactors, the first contactor is connected to the first product power interface, the second contactor is connected to the first product motor interface, the third contactor is connected to the second product power interface, and the fourth contactor is connected to the second product motor interface; A second relay group, wherein the second relay group is connected to the four contactors to control the on and off of the multiple contactors.

5. The automatic switching tool according to any one of claims 1 to 4, characterized in that: The input interface and the output interface are male connectors.

6. The automatic switching tool according to any one of claims 2 to 4, characterized in that: The control interface is a fiber optic network port, and the fiber optic network port is connected to the serial port server.

7. The automatic switching tool according to any one of claims 1 to 4, characterized in that: The product interface is a male connector.

8. The automatic switching tool according to any one of claims 1 to 4, characterized in that: The motor interface includes multiple groups of binding posts, each group of binding posts is connected to a motor power cable in three phases, and each group of binding posts includes three terminals.

9. The automatic switching tool according to any one of claims 1 to 4, characterized in that: The power interface includes a plurality of groups of binding posts, each group is positively and negatively connected to a power input cable, and each group of binding posts includes three terminals.

10. The automatic switching tool according to any one of claims 1 to 4, characterized in that: The automatic switching tool also includes a skylight.

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