CN213903638U - Automatic test equipment for quiescent current - Google Patents
Automatic test equipment for quiescent current Download PDFInfo
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- CN213903638U CN213903638U CN202022323844.3U CN202022323844U CN213903638U CN 213903638 U CN213903638 U CN 213903638U CN 202022323844 U CN202022323844 U CN 202022323844U CN 213903638 U CN213903638 U CN 213903638U
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Abstract
The utility model relates to an automatic test equipment of quiescent current, including the host computer, the display of being connected with the host computer respectively, first power, first collector, the second power, the multiunit relay of being connected with first power electricity, the multistation test box of being connected with first collector electricity, the humiture case of being connected with second collector electricity, the protection shield of being connected with second power electricity, a plurality of products of being surveyed that are connected with the protection shield electricity, the product of being surveyed respectively with the host computer, the test box, the relay electricity is connected, the product of being surveyed can be followed the test box and taken out and put in the humiture case again and continue the test. This scheme CAN test quiescent current automatically, and the measuring accuracy is 1 muA, and CAN carry out automatic switch on and shut down to the product according to the time of setting for, CAN monitor the CAN information of product under the power on state, CAN test quiescent current and monitor experimental environment's humiture under the power off state.
Description
Technical Field
The utility model relates to an automotive electronics technical field especially relates to an automatic test equipment of quiescent current.
Background
Generally, in car audio navigation and instrument products, after the alternating current power failure, the static current at the battery end can be reduced a lot instantly, the static current should be kept within a certain range after the alternating current power failure, if the static current is too large, the normal work of the audio navigation and the instrument can be influenced, and the static current index is an important index for judging a product function.
The existing static current test mode has the following defects:
(1) after ignition is turned off, the current mA gear of the multimeter needs to be manually used for measuring the current of the battery wire, the manual operation is relatively troublesome, and the working efficiency is low;
(2) manual operation does not allow long-cycle, high-frequency testing.
In response to these problems, we invented a quiescent current automatic test equipment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an invention aim at solving current quiescent current's test mode, there is the ignition to close the back, needs the manual electric current mA gear that uses the universal meter, carries out current measurement to the battery line, and manual operation is relatively more troublesome, and work efficiency is low, can not carry out the problem of long period, high-frequency test. The concrete solution is as follows:
the utility model provides an automatic test equipment of quiescent current, including the host computer, the display that is connected with the host computer electricity respectively, first power, first collector, the second power, multiunit relay that is connected with first power electricity, the multistation test box that is connected with first collector electricity, the humiture case that is connected with the second collector electricity, the protection shield that is connected with the second power electricity, a plurality of products under test that are connected with the protection shield electricity, the product under test is connected with the host computer respectively, the test box, the relay electricity, the product under test can be taken out from the test box and put in the humiture case again and continue the test.
Further, the upper computer includes the industrial computer, switch board, first interface, two second interfaces that are connected with the industrial computer electricity respectively, one of them second interface with first collector electricity is connected, another second interface with the second collector electricity is connected, first interface with it connects to be surveyed the product electricity, the switch board with first power electricity is connected.
Furthermore, the industrial personal computer comprises a mainboard, and an MCU processor, a memory and a third power supply which are respectively electrically connected with the mainboard, wherein the memory is electrically connected with the MCU processor.
Furthermore, the first collector is used for collecting the current and the voltage of the product to be tested through the test box and sending the current and the voltage to an industrial personal computer for processing through the second interface.
Furthermore, the second collector is used for collecting the temperature and the humidity of the product to be detected in the temperature and humidity box, and the temperature and the humidity are sent to an industrial personal computer for processing through the second interface.
Further, the first power source is electrically connected to the switch board for controlling the on and off of the relay.
Furthermore, the relay is used for controlling the gating of the wiring harness in the test box according to a preset program in the memory, and automatically performing various test operations.
Further, the second power supply is used for a working power supply of the tested product and controls the startup test and the shutdown test of the tested product according to a preset program.
Further, the first power supply is a switching power supply, and the second power supply is a programmable power supply.
Further, the first interface is a PCI-CAN interface, and the second interface is an RS-232 interface.
To sum up, adopt the utility model discloses a technical scheme has following beneficial effect:
the utility model provides a current quiescent current's test mode, there is the ignition to close the back, needs the manual electric current mA gear that uses the universal meter, carries out current measurement to the battery line, and manual operation is relatively more troublesome, and work efficiency is low, can not carry out the problem of long period, high-frequency test. According to the scheme, the quiescent current CAN be automatically tested after the parameters are set, the test precision is 1 muA, the product CAN be automatically started and shut down according to the set time, the CAN (CAN is an abbreviation of Controller Area Network) information of the product CAN be monitored in the starting-up state, and the quiescent current CAN be tested and the temperature and the humidity of the test environment CAN be monitored in the shutting-down state. The scheme is compatible with high and low temperature environment tests, and the effectiveness of the high and low temperature environment durability tests is improved. Secondly, this equipment can set up the precision of gathering, on-off time, can also set for the frequency of gathering simultaneously to satisfy the different requirements of different products. Finally, the equipment can record all abnormal conditions and store all data, and good analysis basis is provided for the reliability of the product and the traceability of the test. The scheme has the following advantages:
(1) and the starting-up and shutdown time of the product is accurately controlled in the test process.
(2) And monitoring the temperature and humidity of the environment in the test process.
(3) The stability, accuracy and effectiveness of the quiescent current can be monitored.
(4) And monitoring CAN information of the product in a starting-up state.
(5) Is suitable for the environment with the high temperature of 80 ℃ and the low temperature of-40 ℃.
(6) 6 product tests can be carried out simultaneously, and 6 test stations do not interfere with each other.
(7) And data recording and query are supported.
(8) And different types of products are compatible.
(9) The power supply voltage for turning on and turning off the product can be controlled.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed to be used in the description of the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.
Fig. 1 is a block diagram of an automatic testing apparatus for quiescent current according to the present invention;
FIG. 2 is a block diagram of an industrial personal computer of the present invention;
fig. 3 is the wiring diagram of the power supply of the device of the present invention.
Description of reference numerals:
10-a display, 20-a first power supply, 30-a first collector, 40-a second collector, 50-a second power supply, 60-a relay, 70-a test box, 80-a temperature and humidity box, 90-a protection board, 100-a product to be tested, 200-an upper computer, 201-an industrial personal computer, 202-a switch board, 203-a first interface, 204-a second interface, 205-a main board, 206-an MCU processor, 207-a memory and 208-a third power supply.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 2, an automatic testing apparatus for quiescent current includes an upper computer 200, a display 10, a first power supply 20, a first collector 30, a second collector 40, a second power supply 50, a plurality of sets of relays 60 electrically connected to the first power supply 20, a multi-station (in this embodiment, 6-station) testing box 70 electrically connected to the first collector 30, a humiture box 80 electrically connected to the second collector 40, a protection plate 90 electrically connected to the second power supply 50, a plurality of (in this embodiment, 6) tested products 100 electrically connected to the protection plate 90, wherein the tested products 100 are electrically connected to the upper computer 200, the testing box 70, and the relays 60, respectively, and the tested products 100 can be taken out of the testing box 70 and then placed in the humiture box 80 for continuous testing (testing for high and low temperature and environmental tests). The protection board 90 is used to cut off the power supply of the product under test 100 to protect the second power supply 50 from damage when short circuit occurs.
Further, the upper computer 200 includes an industrial personal computer 201, a switch board 202, a first interface 203, and two second interfaces 204 electrically connected to the industrial personal computer 201, respectively, wherein one of the second interfaces 204 is electrically connected to the first collector 30, the other second interface 204 is electrically connected to the second collector 40, the first interface 203 is electrically connected to the product 100 to be tested, and the switch board 202 is electrically connected to the first power supply 20.
Further, the industrial personal computer 201 comprises a main board 205, an MCU processor 206, a memory 207 and a third power supply 208 (the input end of the power supply is powered from an alternating current 220V) which are respectively electrically connected with the main board 205, and the memory 207 is electrically connected with the MCU processor 206.
Further, the first collector 30 is used for collecting the current and voltage of the product under test 100 through the test box 70, and sending the current and voltage to the industrial personal computer 201 for processing through the second interface 204.
Further, the second collector 40 is configured to collect the temperature and humidity of the product 100 to be tested in the temperature and humidity box 80, and send the temperature and humidity to the industrial personal computer 201 for processing through the second interface 204.
Further, the first power source 20 is electrically connected to the switch board 202 for controlling the on and off of the relay 60.
Further, the relay 60 is used for controlling the gating of the wiring harness (not shown, divided into 6 groups and multiple lines) in the test box 70 (through the MCU processor 206) according to a preset program in the memory 207, so as to automatically perform various test operations.
Further, the second power supply 50 is used for supplying power to the product under test 100, and controls the power-on test (monitoring CAN information of the product) and the power-off test (testing quiescent current) of the product under test 100 according to a preset program (via the MCU processor 206).
Further, the first power supply 20 is a switching power supply (controlled by the switch board 202), and the input end of the first power supply gets power from the alternating current 220V, and the second power supply 50 is a programmable power supply (controlled by the industrial personal computer 201), and the input end of the second power supply gets power from the alternating current 220V.
Further, the first interface 203 is a PCI-CAN interface, and the second interface 204 is an RS-232 interface.
The utility model discloses an equipment power supply wiring diagram is shown in figure 3. Since the industrial personal computer 201 belongs to the prior art, the specific working principle thereof is not described herein. According to the scheme, the test box 70 can be designed according to the actual production requirements and the tested products 100 with 4 groups, 8 groups or more than 10 groups, and a plurality of groups of relays 60 are arranged, so that the aim of further improving the production efficiency is fulfilled.
To sum up, adopt the utility model discloses a technical scheme has following beneficial effect:
the utility model provides a current quiescent current's test mode, there is the ignition to close the back, needs the manual electric current mA gear that uses the universal meter, carries out current measurement to the battery line, and manual operation is relatively more troublesome, and work efficiency is low, can not carry out the problem of long period, high-frequency test. According to the scheme, the quiescent current CAN be automatically tested after the parameters are set, the test precision is 1 muA, the product CAN be automatically started and shut down according to the set time, the CAN (CAN is an abbreviation of Controller Area Network) information of the product CAN be monitored in the starting-up state, and the quiescent current CAN be tested and the temperature and the humidity of the test environment CAN be monitored in the shutting-down state. The scheme is compatible with high and low temperature environment tests, and the effectiveness of the high and low temperature environment durability tests is improved. Secondly, this equipment can set up the precision of gathering, on-off time, can also set for the frequency of gathering simultaneously to satisfy the different requirements of different products. Finally, the equipment can record all abnormal conditions and store all data, and good analysis basis is provided for the reliability of the product and the traceability of the test. The scheme has the following advantages:
(1) and the starting-up and shutdown time of the product is accurately controlled in the test process.
(2) And monitoring the temperature and humidity of the environment in the test process.
(3) The stability, accuracy and effectiveness of the quiescent current can be monitored.
(4) And monitoring CAN information of the product in a starting-up state.
(5) Is suitable for the environment with the high temperature of 80 ℃ and the low temperature of-40 ℃.
(6) 6 product tests can be carried out simultaneously, and 6 test stations do not interfere with each other.
(7) And data recording and query are supported.
(8) And different types of products are compatible.
(9) The power supply voltage for turning on and turning off the product can be controlled.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. An automatic quiescent current test device, characterized by: the device comprises an upper computer, a display, a first power supply, a first collector, a second power supply, a plurality of relays, a multi-station test box, a temperature and humidity box, a protection plate and a plurality of tested products, wherein the display, the first power supply, the first collector, the second collector and the second power supply are respectively electrically connected with the upper computer, the multi-station test box is electrically connected with the first collector, the temperature and humidity box is electrically connected with the second collector, the protection plate is electrically connected with the second power supply, the tested products are electrically connected with the protection plate, the tested products are respectively electrically connected with the upper computer, the test box and the relays, and the tested products can be taken out of the test box and then placed in the temperature and humidity box for continuous testing.
2. The automatic quiescent current testing device of claim 1, wherein: the upper computer comprises an industrial personal computer, and a switch board, a first interface and two second interfaces which are respectively electrically connected with the industrial personal computer, wherein one second interface is electrically connected with the first collector, the other second interface is electrically connected with the second collector, the first interface is electrically connected with a tested product, and the switch board is electrically connected with the first power supply.
3. The automatic quiescent current testing device of claim 2, wherein: the industrial personal computer comprises a mainboard, an MCU processor, a memory and a third power supply, wherein the MCU processor, the memory and the third power supply are respectively electrically connected with the mainboard, and the memory is electrically connected with the MCU processor.
4. The automatic quiescent current test equipment of claim 3, wherein: the first collector is used for collecting the current and the voltage of the tested product through the test box and sending the current and the voltage to the industrial personal computer for processing through the second interface.
5. The automatic quiescent current test equipment of claim 4, wherein: the second collector is used for collecting the temperature and the humidity of the product to be detected in the temperature and humidity box and sending the temperature and the humidity to the industrial personal computer for processing through the second interface.
6. The automatic quiescent current testing device of claim 5, wherein: the first power supply is electrically connected with the switch board and used for controlling the on and off of the relay.
7. The automatic quiescent current testing device of claim 6, wherein: the relay is used for controlling the gating of the wiring harness in the test box according to a preset program in the memory, and automatically carrying out various test operations.
8. The automatic quiescent current testing device of claim 7, wherein: the second power supply is used for the working power supply of the tested product and controls the startup test and the shutdown test of the tested product according to a preset program.
9. The automatic quiescent current testing device of claim 8, wherein: the first power supply is a switch power supply, and the second power supply is a program-controlled power supply.
10. The automatic quiescent current testing device of claim 9, wherein: the first interface is a PCI-CAN interface, and the second interface is an RS-232 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022323844.3U CN213903638U (en) | 2020-10-19 | 2020-10-19 | Automatic test equipment for quiescent current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022323844.3U CN213903638U (en) | 2020-10-19 | 2020-10-19 | Automatic test equipment for quiescent current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213903638U true CN213903638U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022323844.3U Active CN213903638U (en) | 2020-10-19 | 2020-10-19 | Automatic test equipment for quiescent current |
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| Country | Link |
|---|---|
| CN (1) | CN213903638U (en) |
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- 2020-10-19 CN CN202022323844.3U patent/CN213903638U/en active Active
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