CN205620137U - Load box of variable load - Google Patents
Load box of variable load Download PDFInfo
- Publication number
- CN205620137U CN205620137U CN201520896154.3U CN201520896154U CN205620137U CN 205620137 U CN205620137 U CN 205620137U CN 201520896154 U CN201520896154 U CN 201520896154U CN 205620137 U CN205620137 U CN 205620137U
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- China
- Prior art keywords
- load
- switch
- box
- analog circuit
- circuit
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- Expired - Fee Related
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a load box of variable load. Among the prior art, the air bag control module during operation need detect the state of external switch loads such as safety belt buckle state, copilot gasbag switch, copilot passenger occupy -place sensor. To different customers, the kind of these switch loads and value all are not quite similar, need be for the dedicated load box of customization. The utility model discloses an add various loadtypes commonly used in the load box, cooperation rotary switch and multitool double -throw switch can realize the selection of multiple load. The external load interface has also been reserved in load to load box inside does not have to realized can be general in the load box of disparity items. During the test, use earlier 3 kinds of dead load analog circuit, to 3 kinds of incompatible condition all, then can switch the shelves to " external load " with rotary switch, insert corresponding external load.
Description
Technical field
This utility model relates to a kind of load box in automotive test, particularly relates to the load box of a kind of variable load.
Background technology
Automobile dispatches from the factory to be needed to use load box strictly to test air bag before.In prior art, testing different projects needs to use different load box test air bags.Need to detect the state of the external switch loads such as belt buckle status, copilot air bag switch, copilot occupant's occupancy sensor during airbag control module work.For different clients, the kind of these switching loads and value are all not quite similar.
Find through analyzing, background technology there is problems in that
In project, engineering development was poor with the load box versatility used by test in the past, generally requires special load box for disparity items or is changed a social system the switching load in load box by engineer, needing to consume more manpower and R & D Cost.
Utility model content
Problem to be solved in the utility model is: provide the load box of a kind of variable load.By adding conventional various loadtypes in load box, coordinate rotary switch and many double-pole double throw switches, the selection of multiple load can be realized.External loading interface has also been reserved in the load not having for load box inside, thus is truly realized the load box that can be universally used in disparity items.Simultaneous Switching option adds power supply and ground, can realize load short circuits to power supply, the fault simulation on ground.During test, the preferential one used in 3 kinds of dead load analog circuits, for 3 kinds of situations the most unconformable, then rotary switch can be switched to " external loading " shelves, coaxial jack on panel access respective load.So, so that it may realize Universal load case, it is adaptable to there is unequally loaded client's project.
This utility model solves the scheme of above-mentioned technical problem:
The load box of a kind of variable load, including dead load analog circuit, load faulty analog circuit, external loading interface, rotary switch；
Dead load analog circuit includes overlapping common load type more, coordinates rotary switch and many double-pole double throw switches, selects multiple load；
Rotary switch is switched to " external loading " shelves, external loading interface on panel accesses respective load；
Dead load analog circuit, load faulty analog circuit, external loading interface are both connected on rotary switch.
Further, described dead load analog circuit includes client 1 load simulation circuit, client 2 load simulation circuit and client 3 load simulation circuit.
The load box of a kind of variable load, including multiple dead load analog circuit, load faulty analog circuit, rotary switch, many double-pole double throw switches and external loading interface.Various loadtypes coordinate rotary switch and many double-pole double throw switches, can realize the selection of multiple load.Simultaneous Switching option adds power supply and ground, can realize load short circuits to power supply, the fault simulation on ground.
Dead load analog circuit includes client 1 load simulation circuit, client 2 load simulation circuit, client 3 load simulation circuit.These three analogue load circuit is three kinds of modal customer loads, and can select load condition by four double-pole double throw switches.Dead load analog circuit, load faulty analog circuit and external loading interface are connected with safety air sac controller by rotary switch.
During test, one of in dead load analog circuit 3 dead load analog circuits can be directly selected and test, it is also possible to select external loading to test by external loading interface；Or by load faulty analog circuit to power supply short circuit, shorted to earth and open fault simulation test.Load box in this utility model, goes for unequally loaded client's project.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: dead load analog circuit 1, load faulty analog circuit 2, external loading interface 3, rotary switch 4, safety air sac controller 5.
Detailed description of the invention
The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
As it can be seen, this utility model is the load box of a kind of variable load.Including dead load analog circuit 1, load faulty analog circuit 2, external loading interface 3, rotary switch 4.Wherein dead load analog circuit 1 includes client 1 load simulation circuit, client 2 load simulation circuit and client 3 load simulation circuit.
In this utility model, dead load analog circuit 1 comprises 3 set customer loads analog circuits, respectively client 1 load simulation circuit, client 2 load simulation circuit and client 3 load simulation circuit.It is of course also possible to be arranged as required to overlap customer loads analog circuit more.In this utility model, client 1 load simulation circuit, client 2 load simulation circuit, client 3 load simulation circuit are three kinds of modal customer loads, and can select load condition by four double-pole double throw switches (not marking in figure).Specific as follows:
Test front passenger side air bag enables switch: client 1 load simulation circuit enabled state is 100 Ω, and closed mode is 800 Ω；Client 2 load simulation circuit enabled state is 100 Ω, and closed mode is 400 Ω；Client 3 load simulation circuit enabled state is 180 Ω, and closed mode is 820 Ω.Thus can test the customer loads of 3 types.
Load faulty analog circuit (2) includes power supply short circuit, shorted to earth and open circuit.
Rotary switch 4 is for being switched to safety air sac controller 5 by 3 kinds of dead load analog circuits 1 or load faulty analog circuit 2 by wire.Rotation turn switch 4 selects the one in the dead load analog circuit 1 of correspondence or load faulty analog circuit 2.
External loading interface 3 is a coaxial jack being arranged on panel, is directly connected by wire with safety air sac controller 5.
For client 1 load simulation circuit, client 2 load simulation circuit, the most inapplicable situation of client 3 load simulation circuit, rotary switch 4 then can be switched to " external loading " shelves, disconnect the connection between air bag 5 and dead load analog circuit 1 or load faulty analog circuit 2, the external loading interface 3 on panel access respective load.
In this utility model, conventional customer loads analog circuit, load faulty analog circuit and rotary switch are ripe device of the prior art, therefore repeat no more.
Should be understood that this embodiment is merely to illustrate this utility model rather than limits scope of the present utility model.In addition, it is to be understood that after having read the content that this utility model is lectured, this utility model can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within this utility model appended claims limited range equally.
Claims (2)
1. a load box for variable load, including dead load analog circuit (1), load faulty analog circuit (2), external loading interface (3), rotary switch (4), it is characterised in that:
Dead load analog circuit (1) includes overlapping common load type more, coordinates rotary switch (4) and many double-pole double throw switches, selects multiple load；
Rotary switch (4) is switched to " external loading " shelves, external loading interface (3) on panel accesses respective load；
Dead load analog circuit (1), load faulty analog circuit (2), external loading interface (3) are both connected on rotary switch (4).
The load box of a kind of variable load the most according to claim 1, it is characterised in that:
Described dead load analog circuit (1) includes client 1 load simulation circuit, client 2 load simulation circuit and client 3 load simulation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520896154.3U CN205620137U (en) | 2015-11-11 | 2015-11-11 | Load box of variable load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520896154.3U CN205620137U (en) | 2015-11-11 | 2015-11-11 | Load box of variable load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205620137U true CN205620137U (en) | 2016-10-05 |
Family
ID=57034411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520896154.3U Expired - Fee Related CN205620137U (en) | 2015-11-11 | 2015-11-11 | Load box of variable load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205620137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092898A (en) * | 2021-03-22 | 2021-07-09 | 神龙汽车有限公司 | EDR system integration parameter input testing device and testing method |
-
2015
- 2015-11-11 CN CN201520896154.3U patent/CN205620137U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092898A (en) * | 2021-03-22 | 2021-07-09 | 神龙汽车有限公司 | EDR system integration parameter input testing device and testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201814 Shanghai city Anting town Jiading District Bai'an Road No. 188 Patentee after: ZF Automotive Systems (Shanghai) Co., Ltd Address before: 201814 Shanghai city Anting town Jiading District Bai'an Road No. 188 Patentee before: TIANHE AUTOMOBILE PARTS (SHANGHAI) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20201111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |