CN201364371Y - Function test system of automobile distribution box - Google Patents
Function test system of automobile distribution box Download PDFInfo
- Publication number
- CN201364371Y CN201364371Y CNU2009201294952U CN200920129495U CN201364371Y CN 201364371 Y CN201364371 Y CN 201364371Y CN U2009201294952 U CNU2009201294952 U CN U2009201294952U CN 200920129495 U CN200920129495 U CN 200920129495U CN 201364371 Y CN201364371 Y CN 201364371Y
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- branch road
- distribution branch
- test
- distribution
- bus
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Abstract
The utility model is applicable to the technical field of automobile test and provides a function test system of an automobile distribution box, comprising a test input end, a simulating load unit, a prompting unit and an internal power supply for supplying power to the distribution box; the internal power supply is connected with power input ends of all distribution branches in the distribution box by the test input end; the internal power supply supplies electric energy to all the distribution branches of the distribution box by the test input end; the prompting unit, the simulating load unit and distribution output ends of all distribution branches in the distribution box form a test circuit by a test output end; the prompting unit prompts the on-off state of all the distribution branches; and as the adoption of a large simulating load test platform is avoided, the whole test system has simple structure and low cost and is applicable to function tests of the distribution boxes with various structures.
Description
Technical field
The utility model belongs to automotive field, relates in particular to a kind of automobile block terminal function test system.
Background technology
Usually in automobile, various pilot relays often are assembled in fusible link, constitute central block terminal (also being Fuse wire box), in order to realize control and the electric energy dispensing to the car load electric appliance circuits.
At present in the use of central block terminal, when electrical appliance damages or line electrical leakage, and electric current is when being not enough to blow fusible link, because the line density on the central block terminal circuit board is big, it is too much to make it produce heat, cause central block terminal circuit board distortion, Copper Foil perk, thereby cause circuit connection to blow or the more heats of adjacent lines short circuit generation, cause central block terminal housing, plug connector distortion to be burnt.Therefore, the performance quality of central block terminal has determined the security of car load circuit.
Prior art adopts the test macro that is made of industrial PC and fictitious load test board that automobile block terminal function is tested.The fictitious load test board generally uses high-power resistance to simulate the electrical appliance that is connected with each distribution branch road in the central block terminal, control the make-and-break time of each distribution branch road by industrial PC, fusible link short-circuit piece bridge joint on central authorities' block terminal, load program figure works out according to automobile working time proportion of electrical appliance in traveling process.Because the volume of fictitious load test board is big, and needs industrial PC that it is controlled, cause this test macro to be difficult for moving the problem that cost of manufacture is high.
The utility model content
The purpose of this utility model is to provide a kind of automobile block terminal function test system, be intended to solve existing test macro volume big, be difficult for moving, problem that cost of manufacture is high.
The utility model is achieved in that a kind of automobile block terminal function test system, and described system comprises test input, fictitious load unit and Tip element; Described fictitious load unit and Tip element constitute test access by the distribution output terminal of each distribution branch road in described test output terminal and the block terminal; Described system further comprises:
To the built-in power of block terminal power supply, it connects the power input of each distribution branch road in the block terminal by described test input.
In the utility model, built-in power provides electric energy by test input to each distribution branch road of block terminal, Tip element, the fictitious load unit constitutes test access by the distribution output terminal of each distribution branch road in test output terminal and the block terminal, Tip element is in order to the on off operating mode of each distribution branch road in the prompting block terminal, whole test system is owing to avoided adopting bulky fictitious load test board, make it simple in structure, be easy to move, also saved the industrial PC of control fictitious load test board, so it is with low cost, and highly versatile is applicable to the functional test of various structure block terminals.
Description of drawings
Fig. 1 is the principle assumption diagram of the automobile block terminal function test system that provides of the utility model embodiment;
Fig. 2 is the concrete structure schematic diagram of Fig. 1 of providing of the utility model first embodiment;
Fig. 3 is the concrete structure schematic diagram of Fig. 1 of providing of the utility model second embodiment;
Fig. 4 is the concrete structure schematic diagram of Fig. 1 of providing of the utility model the 3rd embodiment;
Fig. 5 is the concrete structure schematic diagram of the first bus communication unit among Fig. 4;
Fig. 6 is the physical circuit figure of communication unit among Fig. 4;
Fig. 7 is the physical circuit figure that bus controller among Fig. 4, optical coupling isolator and bus driver connect;
Fig. 8 is the physical circuit figure of power conversion unit among Fig. 4;
Fig. 9 is the physical circuit figure of isolated from power unit among Fig. 4;
Figure 10 is the physical circuit figure of LCD display unit among Fig. 4;
Figure 11 is the physical circuit figure of test procedure storage unit among Fig. 4.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Among the utility model embodiment, built-in power provides electric energy by test input to each distribution branch road of block terminal, Tip element, fictitious load unit constitute test access by the distribution output terminal of each distribution branch road in test output terminal and the block terminal, and Tip element is in order to the on off operating mode of each distribution branch road in the prompting block terminal.
Fig. 1 shows the structural principle of the automobile block terminal function test system that the utility model embodiment provides.
Built-in power 13 is by the power input of each distribution branch road in the test input 12 connection block terminals 11, and the distribution output terminal of each distribution branch road constitutes test accesss by test output terminal 16 and fictitious load unit 15 and Tip element 14 in the block terminal 11.Wherein, test input 12 and test output terminal 16 can be selected existing any interface unit for use, and among the utility model embodiment, test input 12 and test output terminal 16 all adopt aviation plug.In addition, Tip element 14 is used to send the signal (as visible light) that can discern each distribution branch road conducting state, its structure and type are unqualified when specific implementation, among the utility model embodiment, Tip element 14 adopts a plurality of light emitting diodes that place respectively on each distribution branch road, it is low in energy consumption, and good reliability and life-span are long.
In the utility model embodiment, can also between the test input 12 and built-in power 13 of each distribution branch road, the selector switch (not shown) be set.When this selector switch is the two-way selector switch, its movable contact head end connects the test input 12 of each distribution branch road, an one closed contact end connects built-in power 13, its another closed contact end connects the external power source (not shown), the user can be according to the test needs, by switching this two-way selector switch, select to adopt built-in power 13 or external power source to block terminal 11 power supplies.When this selector switch is three tunnel selector switch, its movable contact head end connects the test input 12 of each distribution branch road, an one closed contact end connects built-in power 13, a connection external power source (not shown) in its two other closed contact end, another is unsettled, the user can by switching this three tunnel selector switch, select to adopt built-in power 13 maybe will not power to block terminal 11 power supplies to block terminal 11 power supplies, external power source according to the test needs.
When the automobile block terminal is carried out functional test, the power input of each distribution branch road in the block terminal 11 is linked to each other with built-in power 13 by aviation plug, the distribution output terminal of each distribution branch road connects the fictitious load of each distribution branch road in the block terminal 11 by aviation plug, built-in power 13 begins each distribution branch road is tested to block terminal 11 power supplies.If opening circuit appears in a certain distribution branch road in the block terminal 11, the Tip element 14 that then is connected in this distribution branch road sends information, dysfunction occurs in order to this distribution branch road of prompting user.
Fig. 2 shows the concrete structure principle of Fig. 1 that the utility model first embodiment provides.
In the utility model embodiment, block terminal 11 comprises fusible link distribution branch road 111.The power input of each distribution branch road connects built-in power 13 by test input 12 in the fusible link distribution branch road 111, and the distribution output terminal of each distribution branch road constitutes test access by test output terminal 16 and fictitious load unit 15 and Tip element 14 in the fusible link distribution branch road 111.
For in automobile block terminal functional test procedures, can select the distribution branch road that need test, among the utility model embodiment, the arbitrary position on test access can further include the first switch element (not shown).First switch element comprises a plurality of switches that place on each distribution branch road, is respectively applied for the time its closure, and the distribution branch road that conducting need be tested, its structure and type are unqualified when specific implementation.Preferably, first switch element is selected the self-lock switch that has the pilot lamp function for use, and the anode of the pilot lamp of this self-lock switch connects built-in power 13, whether plus earth can be at indication distribution branch road in the conducting, and whether indication self-lock switch function is normal, good reliability, the life-span is long.
It is described identical that other each several part structure, annexation and realization function and Fig. 1 describe part, do not repeat them here.
When the automobile block terminal was carried out functional test, built-in power 13 was by aviation plug each distribution branch road power supply in fusible link distribution branch road 111, and each distribution branch road begins test.If opening circuit appears in a certain distribution branch road in the block terminal 11, the Tip element 14 that then is connected in this distribution branch road sends information, dysfunction occurs in order to this distribution branch road of prompting user.If add first switch element, then the user can test by the distribution branch road that the switch in corresponding first switch element of closure is tested needs.
Fig. 3 shows the concrete structure principle of Fig. 1 that the utility model second embodiment provides.
In the utility model embodiment, block terminal 11 comprises relay distribution branch road 112.The power input of each distribution branch road connects built-in power 13 by test input 12 in the relay distribution branch road 112, and the distribution output terminal of each distribution branch road constitutes test access by test output terminal 16 and fictitious load unit 15 and Tip element 14 in the relay distribution branch road 112.Be connected with relay switch respectively on each distribution branch road in the relay distribution branch road 112, an end of first relay coil 17 corresponding with the relay switch difference on each distribution branch road links to each other its other end ground connection with built-in power 13.
Similarly, in automobile block terminal functional test procedures, can select the distribution branch road that need test, among the utility model embodiment, the arbitrary position on test access can further include second switch unit (not shown).This second switch unit comprises a plurality of switches that place on each distribution branch road, is respectively applied for the time its closure, and the distribution branch road that conducting need be tested, its structure and type are unqualified when specific implementation.Preferably, the second switch unit is selected the self-lock switch that has the pilot lamp function for use, and the anode of the pilot lamp of this self-lock switch connects built-in power 13, whether plus earth can be at indication distribution branch road in the conducting, and whether indication self-lock switch function is normal, good reliability, the life-span is long.
It is described identical that other each several part structure, annexation and realization function and Fig. 1 describe part, do not repeat them here.
When the automobile block terminal is carried out functional test, built-in power 13 is by aviation plug each distribution branch road power supply in relay distribution branch road 112, built-in power 13 is simultaneously to 17 power supplies of first relay coil, make with corresponding each the distribution branch road of each relay coil on the relay switch closure, each distribution branch road begins test.If opening circuit appears in a certain distribution branch road in the relay distribution branch road 112, the Tip element 14 that then is connected in this distribution branch road sends information, dysfunction occurs in order to this distribution branch road of prompting user.If add the second switch unit, then the user can test by the distribution branch road that the switch in the corresponding second switch of the closure unit is tested needs.
Fig. 4 shows the concrete structure principle of Fig. 1 that the utility model the 3rd embodiment provides.
In the utility model embodiment, block terminal 11 comprises bus distribution branch road 115.The power input of each distribution branch road connects built-in power 13 by test input 12 in the bus distribution branch road 115, and the distribution output terminal of each distribution branch road constitutes test access by test output terminal 16 and fictitious load unit 15 and Tip element 14 in the bus distribution branch road 115.Be connected with relay switch respectively on each distribution branch road in the bus distribution branch road 115, an end of the relay coil corresponding with the relay switch difference on each distribution branch road links to each other its other end ground connection with built-in power 13.
In addition, for in automobile block terminal functional test procedures, can select the distribution branch road that to test, in the utility model embodiment, second relay coil 114 connects the control signal output ends of the second bus communication unit 113 in the block terminal 11 simultaneously, and the input end of the second bus communication unit 113 connects the first bus communication unit 18 by bus.Wherein, any bus protocol that the first bus communication unit 18 and the second bus communication unit 113 can adopt prior art to adopt, as the CAN bus, LIN bus etc., Fig. 5 shows the concrete structure principle of the first bus communication unit among Fig. 4.
Wherein, the first bus communication unit 18 comprises the communication unit 1701 that links to each other with the RS-232 interface of host computer, and it connects the microprocessor 1703 in the first bus communication unit 18 simultaneously, wherein, communication unit 1701 is specifically as follows a RS-232 communication unit, and microprocessor 1703 is a single-chip microcomputer.Show the physical circuit of communication unit 1701 as Fig. 6, wherein, the CON2 interface connects the respective communication interface of host computer, and the I2IN pin connects the serial port output terminal TXD of microprocessor 1703, and the T20UT pin connects the serial port input end TXD of microprocessor 1703.
In order to show test event and the test data to each distribution branch road of block terminal, among the utility model embodiment, microprocessor 1703 can also connect LCD display unit 1707, shows the physical circuit of LCD display unit 1707 as Figure 10.In addition, for the ease of test, improve the portability of system, microprocessor 1703 also is connected with the test procedure storage unit 1702 of storing test program simultaneously, shows the physical circuit of test procedure storage unit 1702 as Figure 11.
It is described identical that other each several part structure, annexation and realization function and Fig. 1 describe part, do not repeat them here.
When the automobile block terminal is carried out functional test, built-in power 13 is by aviation plug each distribution branch road power supply in relay distribution branch road 112, built-in power 13 is simultaneously to 114 power supplies of second relay coil, make with corresponding each the distribution branch road of each relay coil on the relay switch closure, each distribution branch road begins test.If opening circuit appears in a certain distribution branch road in the block terminal 11, the Tip element 14 that then is connected in this distribution branch road sends information, dysfunction occurs in order to this distribution branch road of prompting user.
If add the first bus communication unit 18 that links to each other with the second bus communication unit 113 by bus, then in test process, microprocessor 1703 reads from host computer or test procedure storage unit 1702 and brushes the test procedure of going into, and send control corresponding and instruct, 1704 pairs of these steering orders of bus controller are carried out digital-to-analog conversion, and by bus driver 1706 and bus steering order are sent to the second bus communication unit 113.The second bus communication unit 113 is according to its steering order that receives, and by controlling second relay coil 114 on each distribution branch road and the break-make between the ground connection, the distribution branch road that control is tested needs is tested.
In addition, when specifically putting into practice, block terminal 11 may comprise in fusible link distribution branch road, relay distribution branch road and the bus distribution branch road any, the combination of any two or three kinds, correspondingly, automobile block terminal function test system can comprise as above any among three embodiment, any two or three s' combination.
Among the utility model embodiment, built-in power provides electric energy by test input to each distribution branch road of block terminal, Tip element, fictitious load unit constitute test access by the distribution output terminal of each distribution branch road in test output terminal and the block terminal, Tip element is in order to the on off operating mode of each distribution branch road in the prompting block terminal, whole test system is owing to avoided adopting bulky fictitious load test board, make it simple in structure, with low cost, be easy to move, and highly versatile is applicable to the functional test of various structure block terminals; Have, for fusible link distribution branch road and relay distribution branch road, add switch element in test access, can select the distribution branch road that needs are tested, controllability is good; Have again, for bus distribution branch road, the first bus communication unit that adding and the second bus communication unit in the bus distribution branch road link to each other by bus, and then second relay coil that links to each other with the second bus communication unit of control and the break-make between the ground connection, the distribution branch road that realization is tested needs is selected, and controllability is good; Further, in the second bus communication unit, add the test procedure storage unit that links to each other with microprocessor, can in advance test procedure be brushed into the test procedure storage unit from host computer, ease for use is good.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1, a kind of automobile block terminal function test system is characterized in that, described system comprises test input, test output terminal, fictitious load unit and Tip element; Described fictitious load unit and Tip element constitute test access by the distribution output terminal of each distribution branch road in described test output terminal and the block terminal; Described system further comprises:
To the built-in power of block terminal power supply, it connects the power input of each distribution branch road in the block terminal by described test input.
2, automobile block terminal function test system as claimed in claim 1, it is characterized in that, described block terminal comprises fusible link distribution branch road, the power input of its each distribution branch road connects described built-in power by described test input, and the distribution output terminal of each distribution branch road is by described test output terminal and described fictitious load unit and Tip element formation test access in the described fusible link distribution branch road.
3, automobile block terminal function test system as claimed in claim 2, it is characterized in that described system further comprises arbitrary locational first switch element on the test access that the distribution output terminal that places described built-in power, Tip element, test output terminal and each distribution branch road of fusible link distribution branch road constituted.
4, automobile block terminal function test system as claimed in claim 1, it is characterized in that, described block terminal comprises relay distribution branch road, the power input of its each distribution branch road connects described built-in power by described test input, and the distribution output terminal of each distribution branch road is by described test output terminal and described fictitious load unit and Tip element formation test access in the described relay distribution branch road; Be connected with relay switch respectively on each distribution branch road in the described relay distribution branch road, an end of first relay coil corresponding with the relay switch difference on described each distribution branch road links to each other its other end ground connection with described built-in power.
5, automobile block terminal function test system as claimed in claim 4, it is characterized in that described system further comprises the arbitrary locational second switch unit on the test access that the distribution output terminal that places described built-in power, Tip element, test output terminal and each distribution branch road of relay distribution branch road constituted.
6, automobile block terminal function test system as claimed in claim 1, it is characterized in that, described block terminal comprises the bus distribution branch road and second relay coil, the power input of each distribution branch road of described bus distribution branch road connects described built-in power by described test input, and the distribution output terminal of each distribution branch road is by described test output terminal and described fictitious load unit and Tip element formation test access in the described bus distribution branch road; Be connected with relay switch respectively on each distribution branch road in the described bus distribution branch road, an end of second relay coil corresponding with the relay switch difference on described each distribution branch road links to each other its other end ground connection with described built-in power.
7, automobile block terminal function test system as claimed in claim 6, it is characterized in that, described block terminal also comprises the second bus communication unit that a control output end links to each other with described second relay coil, described system further comprises first a bus communication unit that links to each other with the described second bus communication unit by bus, and the described first bus communication unit comprises:
Microprocessor;
One end and the communication unit that described microprocessor links to each other, the other end is connected host computer;
One end links to each other with described microprocessor, the bus controller of other end connecting bus driver;
One end links to each other with described bus controller, the bus driver of other end connecting bus;
Power supply unit to described microprocessor, bus controller and bus driver power supply;
One end and the power conversion unit that described power supply unit links to each other, the other end is connected described microprocessor, bus controller and bus driver simultaneously.
8, automobile block terminal function test system as claimed in claim 7 is characterized in that, the described first bus communication unit further comprises:
The test procedure storage unit that links to each other with described microprocessor.
9, automobile block terminal function test system as claimed in claim 7 is characterized in that, is connected an optical coupling isolator between the other end of described bus controller and the described bus driver.
10, automobile block terminal function test system as claimed in claim 7 is characterized in that, is connected an isolated from power unit between described power conversion unit and described microprocessor, bus controller and the bus driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201294952U CN201364371Y (en) | 2009-01-16 | 2009-01-16 | Function test system of automobile distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201294952U CN201364371Y (en) | 2009-01-16 | 2009-01-16 | Function test system of automobile distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201364371Y true CN201364371Y (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201294952U Expired - Lifetime CN201364371Y (en) | 2009-01-16 | 2009-01-16 | Function test system of automobile distribution box |
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| CN (1) | CN201364371Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937034A (en) * | 2010-07-29 | 2011-01-05 | 重庆长安汽车股份有限公司 | Durability test stand for vehicle distribution box |
| CN102621420A (en) * | 2012-03-28 | 2012-08-01 | 奇瑞汽车股份有限公司 | Portable off-line testing device for junction box |
| CN104345228A (en) * | 2013-08-05 | 2015-02-11 | 哈尔滨飞机工业集团有限责任公司 | Distribution box tester |
| CN107505529A (en) * | 2017-09-30 | 2017-12-22 | 江西洪都航空工业集团有限责任公司 | A kind of DC power distribution unit (PDU) testing stand |
| CN109375021A (en) * | 2018-11-16 | 2019-02-22 | 浙江理工大学 | A kind of universal program controlled testing system and method for electric car central electrical part holder |
| CN116400145A (en) * | 2023-01-05 | 2023-07-07 | 宁德时代新能源科技股份有限公司 | Test method, system, device and storage medium |
-
2009
- 2009-01-16 CN CNU2009201294952U patent/CN201364371Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937034A (en) * | 2010-07-29 | 2011-01-05 | 重庆长安汽车股份有限公司 | Durability test stand for vehicle distribution box |
| CN101937034B (en) * | 2010-07-29 | 2012-12-26 | 重庆长安汽车股份有限公司 | Durability test stand for vehicle distribution box |
| CN102621420A (en) * | 2012-03-28 | 2012-08-01 | 奇瑞汽车股份有限公司 | Portable off-line testing device for junction box |
| CN104345228A (en) * | 2013-08-05 | 2015-02-11 | 哈尔滨飞机工业集团有限责任公司 | Distribution box tester |
| CN107505529A (en) * | 2017-09-30 | 2017-12-22 | 江西洪都航空工业集团有限责任公司 | A kind of DC power distribution unit (PDU) testing stand |
| CN109375021A (en) * | 2018-11-16 | 2019-02-22 | 浙江理工大学 | A kind of universal program controlled testing system and method for electric car central electrical part holder |
| CN109375021B (en) * | 2018-11-16 | 2024-02-06 | 浙江理工大学 | Universal program control testing system and method for electric automobile central electric box |
| CN116400145A (en) * | 2023-01-05 | 2023-07-07 | 宁德时代新能源科技股份有限公司 | Test method, system, device and storage medium |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20091216 |