CN205210206U - MVB conformance testing frock case - Google Patents
MVB conformance testing frock case Download PDFInfo
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- CN205210206U CN205210206U CN201520955932.1U CN201520955932U CN205210206U CN 205210206 U CN205210206 U CN 205210206U CN 201520955932 U CN201520955932 U CN 201520955932U CN 205210206 U CN205210206 U CN 205210206U
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Abstract
The utility model provides a MVB conformance testing frock case, include: MVB conformance testing circuit board and box, MVB conformance testing circuit board holding with in the box, the box includes the plug wire panel, be equipped with a plurality of through -holes on the plug wire panel, be equipped with the plug wire hole on every through -hole, the plug wire hole with the connector lug electricity that corresponds on the MVB conformance testing circuit board is connected. Avoided MVB conformance testing circuit board to expose in the air to has reduced external interference, has improved the accuracy of test, and when testing external equipment the joint as long as with plug wire hole electricity be connected can, swift convenience has improved efficiency of software testing.
Description
Technical field
The utility model relates to train bus-line technology, particularly relates to a kind of MVB uniformity test frock case.
Background technology
Flourish along with international and domestic track traffic industry, the application of multifunctional train bus (MultifunctionVehicleBus, abbreviation MVB) is more and more wider.Such as, in the vehicles such as urban light rail, subway and railway, all can use a lot of MVB equipment.Disturb bus after getting on the bus to prevent individual plants, all MVB equipment is got on the bus before debugging, must pass through MVB uniformity test in the lab.
In prior art, testing circuit board is tested, each equipment being about to test is connected directly between on circuit board, then tests.
But, adopt prior art, testing circuit board and and test with each equipment between connect first-class being all directly exposed in air, extraneous larger interference can be subject to, cause test result inaccurate.
Utility model content
The utility model provides a kind of MVB uniformity test frock case, for solve existing testing circuit board and and test with each equipment between connect first-class being all directly exposed in air, the problem of extraneous larger interference can be subject to.
The MVB uniformity test frock case that the utility model provides, comprising: MVB uniformity test circuit board and casing;
Described MVB uniformity test circuit board is placed in described casing;
Described casing comprises patch panel, and described patch panel is provided with multiple through hole, and each through hole is provided with plug wire hole, and the connector lug that described plug wire hole is corresponding with on described MVB uniformity test circuit board is electrically connected.
As mentioned above, described patch panel comprises: the first patch panel and the second patch panel, and wherein, described first patch panel is used for insertion loss test and receiving ability test, and described second patch panel is used for load testing;
Described plug wire hole on described first patch panel comprises: the plug wire hole that the plug wire hole that MVB equipment to be tested is corresponding, oscillograph are corresponding and plug wire hole corresponding to signal generator;
Described plug wire hole on described second patch panel comprises: the plug wire hole that the plug wire hole that MVB equipment to be tested is corresponding, load are corresponding.
As mentioned above, described first patch panel also comprises: adjusting knob;
Described adjusting knob is electrically connected with the adjustable resistor on described MVB uniformity test circuit board.
As mentioned above, the Standard resistance range of described adjustable resistor is 0-120 ohm.
As mentioned above, described first patch panel there is the plug wire hole that described in 2 groups, signal generator is corresponding; Correspondingly,
Described first patch panel there is the plug wire hole that 2 groups of oscillographs are corresponding.
In the MVB uniformity test frock case that the utility model provides, MVB uniformity test circuit board is placed in casing, avoids MVB uniformity test circuit board and expose in atmosphere, thus decrease extraneous interference, improve the accuracy of test; In addition, patch panel established by casing, patch panel is established multiple through hole, each through hole is provided with plug wire hole, and the plug wire hole connector lug corresponding with on MVB uniformity test circuit board is electrically connected, as long as the joint of external unit is electrically connected with plug wire hole during such test, efficient and convenient, improve testing efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the MVB uniformity test frock case embodiment one that Fig. 1 provides for the utility model;
The structural representation of the MVB uniformity test frock case embodiment two that Fig. 2 provides for the utility model;
The structural representation of the MVB uniformity test frock case embodiment three that Fig. 3 provides for the utility model;
The structural representation of the MVB uniformity test frock case embodiment four that Fig. 4 provides for the utility model.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The structural representation of the MVB uniformity test frock case embodiment one that Fig. 1 provides for the utility model, as shown in Figure 1, this test fixture case comprises: MVB uniformity test circuit board 01 and casing 02.
Wherein, MVB uniformity test circuit board 01 is placed in casing 02.
Particularly, above-mentioned casing 02 also comprises: patch panel 21, and this patch panel is provided with multiple through hole, and each through hole is provided with plug wire hole, and the connector lug that plug wire hole is corresponding with on MVB uniformity test circuit board is electrically connected.
When testing, as long as the equipment that outside need connects is electrically connected with corresponding plug wire hole, expose in atmosphere without the need to MVB uniformity test circuit board, also do not need to go to connect in each joint correspondence.
In the present embodiment, MVB uniformity test circuit board is placed in casing, avoids MVB uniformity test circuit board and expose in atmosphere, thus decrease extraneous interference, improve the accuracy of test; In addition, patch panel established by casing, patch panel is established multiple through hole, each through hole is provided with plug wire hole, and the plug wire hole connector lug corresponding with on MVB uniformity test circuit board is electrically connected, as long as the joint of external unit is electrically connected with plug wire hole during such test, efficient and convenient, improve testing efficiency.
The structural representation of the MVB uniformity test frock case embodiment two that Fig. 2 provides for the utility model, the structural representation of the MVB uniformity test frock case embodiment three that Fig. 3 provides for the utility model, the structural representation of the MVB uniformity test frock case embodiment four that Fig. 4 provides for the utility model.
Above-mentioned patch panel 21 comprises the first patch panel 201 and the second patch panel 202, and wherein the first patch panel 201 is for inserting insertion loss test and receiving ability test.Second patch panel 202 is used for load testing for the second patch panel, but not as limit.Namely the external unit that different tests needs is different, and the plug wire hole of required insertion is also different, and above-mentioned first patch panel 201 and the second patch panel 202 can be arranged on the same side of test fixture case, also can be distributed in the different side of test fixture case.
Patch panel is as shown in Figure 2 and Figure 3 the first patch panel 201.Jack on this first patch panel 201 comprises: the plug wire hole (such as S1, S2, S4, S5) that the plug wire hole (such as J1, J2, J3, J4) that MVB equipment to be tested is corresponding, plug wire hole (such as MI, M2, M4, M5) that oscillograph is corresponding and signal generator are corresponding.
Further, the first patch panel also comprises: adjusting knob R_A and R_B.The adjustable resistor that this adjusting knob R_A and R_B is different from MVB uniformity test circuit board is respectively electrically connected.Plug wire hole S1 and S2 that signal generator is corresponding can access first via circuit, S3 and S4 can access the second road circuit, adjusting knob R_A is for regulating the adjustable resistor with first via circuit in parallel, and adjusting knob R_B is for regulating the adjustable resistor with the second road circuit in parallel.
During specific implementation, the Standard resistance range of above-mentioned adjustable resistor can be 0-120 ohm.
As shown in Figure 2, when carrying out insertion loss test, the impedance of meeting simulated field vehicle, can by MVB equipment access J1, J2 jack to be tested, the test splice corresponding with on box house MVB uniformity test circuit board is communicated with, when specifically connecting, and the fittings that signal generator, oscillograph are also corresponding with on box house MVB uniformity test circuit board, and then signal generator emissioning testing signal, in oscillograph observation test result.Two MVB lines for connecting MVB equipment to be tested can first dock, then with MVB equipment connection.
As shown in Figure 3, when carrying out receiving ability test, central control unit (centralcontrolunit, be called for short CCU) insert patchhole J4 corresponding to MVB equipment to be tested by test single channel card extender, MVB equipment to be tested inserts patchhole J3 corresponding to MVB equipment to be tested, plug wire hole S1 and S2 can access first via circuit (such as potentiometer), S3 and S4 can access the second road circuit (such as potentiometer), particularly, the primary frame signal of MVB is inputted by CCU, the waveform of all MVB Frames in MVB can be seen from oscillograph, and by regulating adjusting knob R_A and R_B to adjust the adjustable resistor with first via circuit in parallel, and with the adjustable resistor of the second road circuit in parallel, and then outputed test result by oscillograph.
Patch panel is as shown in Figure 4 the second patch panel 202.This second patch panel 202 comprises: the plug wire hole that the plug wire hole (such as J1, J2, J3, J4) that MVB equipment to be tested is corresponding, load are corresponding.Wherein, " I+, I-, L+, L-, H+, H-, A+, A-" is patchhole corresponding to first via load, and " I+, I-, L+, L-, H+, H-, B+, B-" is patchhole corresponding to the second tunnel load.During specific implementation, load testing can be divided into: heavy duty test, underloading test and idle test, the situation of different impedance in simulating vehicle in circuit respectively.Adopt the scheme in the utility model embodiment, connector lug corresponding for load is all drawn out on patch panel, selects different load circuits according to different demands like this, and plug wire holes different on the second patch panel, complete and access.
Certainly, during embody rule, the annexation of connector lug on each plug wire hole and MVB uniformity test circuit board can be changed according to demand neatly, be not limited with above-mentioned example.Above-mentioned test also can with reference to standard execution particularly, and this is not restricted.
According to testing needs particularly, (such as S1 and S2 is one group above-mentioned first patch panel can be provided with plug wire hole corresponding to 2 groups of signal generators, S3 and S4 is one group), so that access first group of signal generator and second group of signal generator, the external circuit that other are different can certainly be accessed.Correspondingly, above-mentioned first patch panel also can be provided with plug wire hole corresponding to 2 groups of oscillographs, so that insert two groups of oscillographs, monitor two-way output signal respectively.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (5)
1. a MVB uniformity test frock case, is characterized in that, comprising: MVB uniformity test circuit board and casing;
Described MVB uniformity test circuit board is placed in described casing;
Described casing comprises patch panel, and described patch panel is provided with multiple through hole, and each through hole is provided with plug wire hole, and the connector lug that described plug wire hole is corresponding with on described MVB uniformity test circuit board is electrically connected.
2. test fixture case according to claim 1, it is characterized in that, described patch panel comprises: the first patch panel and the second patch panel, wherein, described first patch panel is used for insertion loss test and receiving ability test, and described second patch panel is used for load testing;
Described plug wire hole on described first patch panel comprises: the plug wire hole that the plug wire hole that MVB equipment to be tested is corresponding, oscillograph are corresponding and plug wire hole corresponding to signal generator;
Described plug wire hole on described second patch panel comprises: the plug wire hole that the plug wire hole that MVB equipment to be tested is corresponding, load are corresponding.
3. test fixture case according to claim 2, is characterized in that, described first patch panel also comprises: adjusting knob;
Described adjusting knob is electrically connected with the adjustable resistor on described MVB uniformity test circuit board.
4. test fixture case according to claim 3, is characterized in that, the Standard resistance range of described adjustable resistor is 0-120 ohm.
5. test fixture case according to claim 2, is characterized in that, described first patch panel has the plug wire hole that described in 2 groups, signal generator is corresponding; Correspondingly,
Described first patch panel there is the plug wire hole that 2 groups of oscillographs are corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520955932.1U CN205210206U (en) | 2015-11-25 | 2015-11-25 | MVB conformance testing frock case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520955932.1U CN205210206U (en) | 2015-11-25 | 2015-11-25 | MVB conformance testing frock case |
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| Publication Number | Publication Date |
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| CN205210206U true CN205210206U (en) | 2016-05-04 |
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| CN201520955932.1U Active CN205210206U (en) | 2015-11-25 | 2015-11-25 | MVB conformance testing frock case |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771696A (en) * | 2015-11-25 | 2017-05-31 | 中车大连电力牵引研发中心有限公司 | MVB uniformity test frock casees |
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- 2015-11-25 CN CN201520955932.1U patent/CN205210206U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771696A (en) * | 2015-11-25 | 2017-05-31 | 中车大连电力牵引研发中心有限公司 | MVB uniformity test frock casees |
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