CN215986427U - Test adapter - Google Patents
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- CN215986427U CN215986427U CN202122074330.3U CN202122074330U CN215986427U CN 215986427 U CN215986427 U CN 215986427U CN 202122074330 U CN202122074330 U CN 202122074330U CN 215986427 U CN215986427 U CN 215986427U
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Abstract
The utility model relates to a test adapter comprising: the test system comprises an operation interface, a programmable logic controller, a test module and a connector, wherein the operation interface is used for receiving a user instruction and displaying test data fed back by a product to be tested, and the user instruction indicates the type of test to be performed on the product to be tested; the programmable logic controller comprises a data output interface and a data input interface, the data output interface is configured to send a control signal for a product to be tested based on a user instruction from the operation interface, and the data input interface is configured to receive test data fed back by the product to be tested; the test module receives a control signal from the data output interface, sends the control signal to a product to be tested through a corresponding connector, receives test data fed back by the product to be tested from the corresponding connector, and sends the test data to the data input interface; the connector is used for connecting an interface of a product to be tested.
Description
Technical Field
The present disclosure relates generally to the field of power equipment technology, and more particularly, to a test adapter.
Background
Currently, the traction-assist inverter product is tested in the following manner.
The control loop cable was tested point-to-point by a tester using a multimeter.
Individual testing is generally not currently performed for contactors within a product.
When the function test is carried out, the power supply adapter is firstly connected to a product, and the switch is toggled to supply power to the product to be tested.
When the switching value test is carried out, a switching value control command needs to be set on control software, the switch is shifted on the switching value test adapter, and then the closing state of the corresponding contactor is checked on the control software.
When the three-phase short circuit test of function test, use three-phase short circuit adapter, be connected to the product with three-phase short circuit adapter on, for the adapter provides the power, stir control switch, simulation product output end three-phase short circuit trouble.
When the ground fault of the function test is tested, the ground fault adapter is used, the ground fault adapter is connected to a product, the control switch is toggled, and the ground fault of the output end of the product is simulated.
That is, a total of 4 test adapters need to be used to complete the functional test.
Disclosure of Invention
The following presents a simplified summary of the utility model in order to provide a basic understanding of some aspects of the utility model. It should be understood that this summary is not an exhaustive overview of the utility model. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
The present invention is directed to solving the above and/or other technical problems and providing a test adapter for testing a traction-assist inverter.
According to an aspect of the present disclosure, there is provided a test adaptor comprising: the test system comprises an operation interface, a programmable logic controller, a test module and a connector, wherein the operation interface is used for receiving a user instruction and displaying test data fed back by a product to be tested, and the user instruction indicates the type of test to be performed on the product to be tested; the programmable logic controller comprises a data output interface and a data input interface, the data output interface is configured to send a control signal for the product to be tested based on the user instruction from the operation interface, and the data input interface is configured to receive test data fed back by the product to be tested; the test module receives the control signal from the data output interface and sends the control signal to the product to be tested through the corresponding connector, and receives test data fed back by the product to be tested from the corresponding connector and sends the test data to the data input interface; and the connector is connected with the interface of the product to be tested.
Optionally, in one example of the above aspect, the connectors include a first connector corresponding to a wire harness of the product to be tested, a second connector and a third connector connected to internal contactors of the product to be tested, and the test module includes: the cable testing sub-module is connected with the product to be tested through the first connector and is used for testing a control loop of the product to be tested; the product internal contactor testing sub-module is used for realizing the connection with the internal contactor of the product to be tested through the second connector and testing the state and parameters of the internal contactor; and the function test submodule is used for realizing the connection with the product to be tested by using a third connector and carrying out direct-current power supply test, switching value test, short-circuit fault test and ground fault test on the product to be tested.
Optionally, in one example of the above aspect, the product internal contactor test sub-module controls opening and closing of the internal contactors of the product to be tested, and receives a closed or opened state, a closing delay time and an opening delay time, a coil resistance value, and main and auxiliary contact resistance values of the internal contactors fed back by the product to be tested.
Optionally, in an example of the above aspect, the third connector is a porous connector, and the functional test sub-module includes a test power supply and a power supply contactor, a switching amount test contactor, a short circuit simulation contactor, and a ground simulation contactor, wherein when the power supply contactor is closed, a control voltage is provided for the product under test to perform the dc power supply test; when the switching value test contactor is closed, the switching value test is carried out; when the short-circuit simulation contactor is closed, the short-circuit fault test is carried out; and when the grounding simulation contactor is closed, performing the grounding fault test.
Optionally, in one example of the above aspect, the product under test is a traction-assist inverter.
According to the test adapter disclosed by the utility model, a plurality of different types of tests to be carried out on a product to be tested are integrated into one test adapter to realize the tests, so that the test time can be saved, and the test efficiency can be improved; the maintenance cost of the product is reduced, and the quality of the product, and the stability and reliability of the product operation are improved; the wiring cables are reduced, the wiring time is reduced, the testing efficiency is improved, and the operating space of the testing table is saved.
Drawings
The above and other objects, features and advantages of the present invention will be more readily understood by reference to the following description of the embodiments of the present invention taken in conjunction with the accompanying drawings. The components in the figures are meant to illustrate the principles of the present invention. In the drawings, the same or similar technical features or components will be denoted by the same or similar reference numerals. In the drawings:
FIG. 1 is a schematic block diagram of a test adapter according to one embodiment of the present invention;
fig. 2 is a schematic block diagram of a test adapter according to another exemplary embodiment of the present invention.
Wherein the reference numbers are as follows:
100. 200: the test adapter 102: operation interface
104: the programmable logic controller 106: test module
108: the connector 110: product to be tested
DO: data output interface DI: data input interface
106-1: cable test sub-module 106-2: product internal contactor test submodule
106-3: functional test submodule 108-1: first connector
108-2: second connector 108-3: third connector
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thereby implement the subject matter described herein, and are not intended to limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as needed.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
In order to solve the above problems, the present invention proposes a novel test adapter for testing a traction-assist inverter.
A test adaptor according to an embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.
FIG. 1 is a schematic block diagram of a test adapter 100 according to one embodiment of the present invention.
As shown in fig. 1, the test adapter 100 includes: an operator interface 102, a programmable logic controller 104, a test module 106, and a connector 108.
The operation interface 102 is configured to receive a user instruction and display test data fed back by a product to be tested, where the user instruction indicates a type of test to be performed on the product to be tested, such as a control loop test, a product internal contactor test, or a function test.
The Programmable Logic Controller (PLC)104 includes a data output interface DO configured to transmit a control signal for a product to be tested based on a user instruction from the operation interface 102, and a data input interface DI configured to receive test data fed back by the product to be tested.
Those skilled in the art will appreciate that the programmable logic controller 104 also includes other components, such as a CPU, that are omitted from fig. 1 to enable communication with the operator interface 102 and the test module 106.
The test module 106 is configured to test a product under test 110, and specifically, it receives a control signal from the data output interface DO and sends the control signal to the product under test through the corresponding connector 108, and receives test data fed back by the product under test from the corresponding connector 108 and sends the test data to the data input interface.
The connector 108 is used to connect to an interface of a product under test 110.
Those skilled in the art will appreciate that the data output interface DO and the data input interface DI of the plc 104 may have a plurality of paths for outputting and receiving different data, respectively, according to the requirement of the type of test to be performed on the product under test 110, the test module 106 may include different test sub-modules for performing different types of tests, and the connector 108 may also include a plurality of different types of connectors for connecting different interfaces of the product under test 110.
Fig. 2 is a schematic block diagram of a test adapter 200 according to another exemplary embodiment of the present invention. The structure and operation of the test adapter 200 is described in detail below with reference to fig. 2.
As shown in fig. 2, the test adapter 200 includes: the operation interface 102 is configured to receive a user instruction and display test data fed back by the product to be tested, where the user instruction indicates a type of test to be performed on the product to be tested. The operator interface 102 is, for example, a human-machine interface, and in one example, the operator interface 102 may be in remote communication with other components of the test adapter 200.
The data output interface DO and the data input interface DI of the programmable logic controller 104 may have a plurality of paths for outputting and receiving different data, respectively, which are not shown in fig. 2 for simplicity of the drawing.
In the test adapter 200 shown in fig. 2, the test module 106 includes: cable test sub-module 106-1, product internal contactor test sub-module 106-2, and functional test sub-module 106-3, connectors 108 include a first connector 108-1, a second connector 108-2, and a third connector 108-3.
The first connector 108-1 is a plug corresponding to a wire harness of the product 110 to be tested, and the cable testing sub-module 106-1 can be connected to the cable of the product 110 to be tested through the first connector 108-1, so that the control loop of the product 110 to be tested can be conveniently tested.
Specifically, when the user selects a cable test on the human-computer interaction interface, the cable test sub-module 106-1 of the test adapter 200 may test the control loop of the product 110 to be tested, and after the test is completed, the pass of the test may be displayed on the human-computer interaction interface, and if there is a wrong connection, corresponding error-reporting information may be displayed on the human-computer interaction interface.
By the mode, the testing time can be saved, and the testing efficiency is improved.
The second connector 108-2 is connected to the internal contacts of the product under test 110, and the product internal contact testing sub-module 106-2 is connected to the internal contacts of the product under test 110 through the second connector 108-2, and can test the states and parameters of the internal contacts of the product under test 110.
Specifically, when the contactor test is selected on the human-computer interaction interface, the product internal contactor test sub-module 106-2 may control the opening and closing of the internal contactor of the product under test 110, and then receive the states and parameters of the closed or open state, the closing delay time and the opening delay time, the coil resistance value, and the main contact and auxiliary contact resistance values of the internal contactor fed back by the product under test 110, and may display the states and parameters on the human-computer interaction interface, and further may store the states and parameters in the database. After the contactor test is completed, the contactor can be automatically disconnected, and the test passing is displayed on the man-machine interaction operation interface.
In the prior art, the test adapter can only control the contactor in a product, but cannot measure the states and parameters of the contactor, such as the closing and opening states, the closing delay time and the opening delay time, the resistance value of a control coil, the resistance values of a main contact and an auxiliary contact, and the like. Some products now experience problems when testing after final assembly at the customer site, such as contactor on-time out-of-range. By adopting the test adapter, the contactor in the product can be tested in a factory, and the contactor can be delivered to a customer after being tested to be qualified. The problem that the product flows to a customer site to cause customer complaints is avoided, so that the time wasted by replacing the product with a new product on the customer site and repairing the product is avoided. And further, the maintenance cost of the product is reduced, and the quality of the product, the stability and the reliability of the product operation and the trust of a client on the company product are improved.
In the prior art, when a product to be tested is subjected to function test, different function tests are completed by using a plurality of different test adapters respectively.
In the test adapter of the present invention, the functional test sub-module 106-3 uses the third connector 108-3 to connect with the product 110 to be tested, and performs dc power supply test, switching value test, short circuit fault test and ground fault test on the product 110 to be tested. The third connector is, for example, a porous connector, in particular a power supply aviation plug. Functional test submodule 106-3 may include, for example, test power supplies and power contactors, switch quantity test contactors, short circuit analog contactors, and ground analog contactors.
When a power supply function test is selected on the man-machine interaction operation interface, the power supply contactor is closed to provide control voltage for a product to be tested so as to perform a direct-current power supply test.
When the switching value test is selected, the test contactor is closed, and the switching value test can be performed.
When a three-phase short-circuit fault test is selected, the short-circuit simulation contactor is closed, and the three-phase output short circuit of a product to be tested is realized. After the test is finished, the operation can be carried out on a human-computer interaction operation interface, and the short-circuit simulation contactor is disconnected.
When the grounding fault test is selected, the grounding simulation contactor is closed, the output of the product to be tested is in grounding fault, and after the test is completed, the grounding simulation contactor can be operated on a human-computer interaction operation interface and disconnected.
By using the test adapter provided by the utility model, the number of used adapters is reduced from four to one, and the number of connecting cables is reduced, so that the operation error rate of a tester is reduced, the wiring time is reduced, the test efficiency is improved, and the operation space of a test bench is saved.
Those skilled in the art will appreciate that circuit elements may be arranged as required to implement a test power supply and a power supply contactor, a switch amount test contactor, a short circuit simulation contactor and a grounding simulation contactor, and the specific form of the circuit is not limited in the present invention.
In addition, as will be understood by those skilled in the art, the test adapter according to the present invention may be configured with other test sub-modules as required, besides cable test, product internal contactor test, and functional test, and the functional test may be configured with other functional tests as required, besides dc power supply test, switching value test, short circuit fault test, and ground fault test, and is not limited to the above-mentioned test types.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. Test adapter (100, 200), characterized in that it comprises: an operational interface (102), a programmable logic controller (104), a test module (106), and a connector (108), wherein,
the operation interface (102) is used for receiving a user instruction and displaying test data fed back by the product to be tested (110), wherein the user instruction indicates the type of test to be performed on the product to be tested (110);
the programmable logic controller (104) comprises a data output interface (DO) and a data input interface (DI), the data output interface (DO) is configured to send control signals for the product under test based on the user instructions from the operation interface, the data input interface (DI) is configured to receive test data fed back by the product under test (110);
the test module (106) receives the control signal from the data output interface (DO) and sends the control signal to the product to be tested (110) through the corresponding connector (108), and receives test data fed back by the product to be tested (110) from the corresponding connector (108) and sends the test data to the data input interface (DI); and
the connector (108) is connected with the interface of the product to be tested (110).
2. The test adapter (200) of claim 1,
the connector (108) includes a first connector (108-1) corresponding to a wire harness of the product to be tested (110), a second connector (108-2) and a third connector (108-3) connected to internal contacts of the product to be tested, and
the test module (106) comprises:
the cable testing sub-module (106-1) is connected with the product to be tested (110) through the first connector (108-1) and is used for testing a control loop of the product to be tested (110);
a product internal contactor test sub-module (106-2) for enabling connection with internal contactors of the product to be tested (110) through the second connector (108-2), testing states and parameters of the internal contactors; and
and the functional test sub-module (106-3) is connected with the product to be tested (110) by using a third connector (108-3), and is used for performing direct-current power supply test, switching value test, short-circuit fault test and ground fault test on the product to be tested (110).
3. The test adapter (200) of claim 2, wherein the product internal contactor test sub-module (106-2) controls opening and closing of the internal contactors of the product under test (110), and receives the closed or open state, closing and opening delay times, coil resistance values, and main and auxiliary contact resistance values of the internal contactors as fed back by the product under test (110).
4. The test adapter (200) of claim 2, wherein the third connector (108-3) is a porous connector and the functional test sub-module (106-3) comprises a test power supply and power supply contactor, a switch amount test contactor, a short circuit analog contactor, and a ground analog contactor, wherein,
when the power supply contactor is closed, providing control voltage for the product to be tested to perform the direct-current power supply test;
when the switching value test contactor is closed, the switching value test is carried out;
when the short-circuit simulation contactor is closed, the short-circuit fault test is carried out; and
and when the grounding simulation contactor is closed, performing the grounding fault test.
5. The test adapter (100, 200) according to any of claims 1-4, wherein the product under test (110) is a traction-assist inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122074330.3U CN215986427U (en) | 2021-08-31 | 2021-08-31 | Test adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122074330.3U CN215986427U (en) | 2021-08-31 | 2021-08-31 | Test adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215986427U true CN215986427U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122074330.3U Active CN215986427U (en) | 2021-08-31 | 2021-08-31 | Test adapter |
Country Status (1)
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| CN (1) | CN215986427U (en) |
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2021
- 2021-08-31 CN CN202122074330.3U patent/CN215986427U/en active Active
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