CN108802513A - A kind of anti-negative voltage interference test device of automobile combination meter - Google Patents
A kind of anti-negative voltage interference test device of automobile combination meter Download PDFInfo
- Publication number
- CN108802513A CN108802513A CN201810176178.XA CN201810176178A CN108802513A CN 108802513 A CN108802513 A CN 108802513A CN 201810176178 A CN201810176178 A CN 201810176178A CN 108802513 A CN108802513 A CN 108802513A
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- CN
- China
- Prior art keywords
- module
- relay
- electrically connected
- anode
- combination meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
Abstract
The invention discloses a kind of anti-negative voltage interference test devices of automobile combination meter.It includes the first power module, second power supply module, energy-storage module, relay, control module, anode connection terminal and cathode connection terminal, first power module anode is electrically connected by the contact switch S2 of relay with anode connection terminal, first power module cathode is electrically connected with cathode connection terminal, energy-storage module anode is electrically connected with second power supply module anode and cathode connection terminal, energy-storage module cathode is electrically connected with the moved end of the single-pole double-throw switch (SPDT) S1 of relay, second power supply module cathode is electrically connected with the first non-moving end of the single-pole double-throw switch (SPDT) S1 of relay, anode connection terminal is electrically connected with the second non-moving end of the single-pole double-throw switch (SPDT) S1 of relay, the control terminal of relay is electrically connected with control module.The present invention can detect the anti-negative voltage jamming performance of automobile combination meter, ensure automobile combination meter quality.
Description
Technical field
The present invention relates to automobile combination meter experimental technique field more particularly to a kind of anti-negative voltages of automobile combination meter
Interference test device.
Background technology
In the electric component of automobile product, combination instrument belongs to IC products, the anti-negative voltage interference of this product
Ability performance is particularly significant to the performance of product.But blank is directly subordinate to this research technique one；Therefore, to judge that combination instrument is anti-
Negative voltage jamming performance situation makes one for judging whether combination instrument meets anti-negative voltage interference test equipment dress
Set very it is necessary to.
Invention content
The purpose of the present invention is overcome currently without the anti-negative voltage jamming performance situation of dedicated experiments automobile combination meter
Device the technical issues of, provide a kind of anti-negative voltage interference test device of automobile combination meter, automobile can be detected
The anti-negative voltage jamming performance of combination instrument ensures automobile combination meter quality.
To solve the above-mentioned problems, the present invention is achieved by the following scheme：
A kind of anti-negative voltage interference test device of automobile combination meter of the present invention, including the first power module, second source
Module, energy-storage module, relay, the control module of control relay work, the anode for connecting automobile combination meter anode
Connection terminal and cathode connection terminal for connecting automobile combination meter cathode, the first power module anode pass through relay
Contact switch S2 is electrically connected with anode connection terminal, and the first power module cathode is electrically connected with cathode connection terminal, energy-storage module
Anode is electrically connected with second power supply module anode and cathode connection terminal, the single-pole double-throw switch (SPDT) of energy-storage module cathode and relay
The moved end of S1 is electrically connected, and second power supply module cathode is electrically connected with the first non-moving end of the single-pole double-throw switch (SPDT) S1 of relay, just
Pole connection terminal is electrically connected with the second non-moving end of the single-pole double-throw switch (SPDT) S1 of relay, the control terminal and control module of relay
Electrical connection.
In the technical scheme, when experiment, automobile combination meter anode is electrically connected with anode connection terminal, automobile combination
Instrument cathode is electrically connected with cathode connection terminal, and control module does not give first the coil of relay to be powered, and contact switch S2 is closed, single
The moved end of double-pole double throw switch S1 is connect with the first non-moving end, at this point, second power supply module charges to energy-storage module, the first power supply mould
Block provides forward voltage to automobile combination meter, and after the time of setting, energy-storage module is fully charged, and control module is to relay
Coil be powered, contact switch S2 is disconnected, and the moved end of single-pole double-throw switch (SPDT) S1 is connect with the second non-moving end, at this point, second source
Module is disconnected with energy-storage module, and the first power module is disconnected with automobile combination meter, and fully charged energy-storage module is to automobile combination
Instrument provides the negative voltage of decaying.Control module replaces power on/off to the coil of relay, repeats the above steps, until meeting
Test requirements document number.After reaching test requirements document number, if automobile combination meter can work normally, show automobile combination instrument
The anti-negative voltage jamming performance of table is qualified, otherwise, shows that the anti-negative voltage jamming performance of automobile combination meter is unqualified.
Preferably, the control module includes relay drive circuit and oscillating voltage output module, oscillating voltage is defeated
The output end for going out module is electrically connected with the input terminal of relay drive circuit, the output end of relay drive circuit and relay
Control terminal is electrically connected.Oscillating voltage output module is alternation oscillator.
Preferably, the control module includes relay drive circuit and direct voltage output module, DC voltage is defeated
The output end for going out module is electrically connected with the input terminal of relay drive circuit, the output end of relay drive circuit and relay
Control terminal is electrically connected.By controlling the break-make of the output control relay of direct voltage output module, direct voltage output module
A DC voltage is exported, relay on-off is primary, completes primary experiment.
Preferably, the control module includes relay drive circuit, single-pole double-throw switch (SPDT) S3, oscillating voltage output mould
Block and direct voltage output module, the output end of oscillating voltage output module are electrically connected with the first non-moving end of single-pole double-throw switch (SPDT) S3
It connects, the output end of direct voltage output module is electrically connected with the second non-moving end of single-pole double-throw switch (SPDT) S3, single-pole double-throw switch (SPDT) S3
Moved end be electrically connected with the input terminal of relay drive circuit, the control terminal electricity of the output end of relay drive circuit and relay
Connection.When needing to enter cyclic test pattern, the moved end of single-pole double-throw switch (SPDT) S3 is connect with the first non-moving end, oscillating voltage
Output module exports oscillating voltage, relay periodicity break-make, and experimental rig carries out cyclic test；When needing inlet point dynamic test
When pattern, the moved end of single-pole double-throw switch (SPDT) S3 is connect with the second non-moving end, by the output for controlling direct voltage output module
The break-make of relay is controlled, relay on-off is primary, completes primary experiment.
Preferably, the second power supply module includes power supply Eb, resistance R1 and voltage detection module, power supply Eb anodes with
Voltage detection module one end and the electrical connection of energy-storage module anode, power supply Eb cathode are electrically connected with the one end resistance R1, and resistance R1 is another
End is electrically connected with the first non-moving end of the voltage detection module other end and the single-pole double-throw switch (SPDT) S1 of relay.Voltage detection module
The voltage of energy-storage module is detected, and sends it to the equipment such as monitor terminal, the voltage of energy-storage module is checked convenient for staff
Situation of change.
Preferably, the energy-storage module includes capacitance C.
Preferably, first power module includes power supply E1.
Preferably, the anti-negative voltage interference test device of a kind of automobile combination meter further includes discharge circuit, institute
It includes resistance R2, resistance R3 and resistance R4 to state discharge circuit, and the one end resistance R4 is electrically connected with the one end resistance R3 and anode connection terminal
It connects, the resistance R3 other ends are electrically connected with second non-moving end of the one end resistance R2 and the single-pole double-throw switch (SPDT) S1 of relay, resistance R2
The other end is electrically connected with energy-storage module anode, the resistance R4 other ends and cathode connection terminal.
The beneficial effects of the invention are as follows：The anti-negative voltage jamming performance of automobile combination meter can be detected, ensures automobile group
Close instrument quality.
Description of the drawings
Fig. 1 is a kind of circuit diagram of the present invention.
In figure：1, relay, 2, anode connection terminal, 3, cathode electric connection terminal, 4, relay drive circuit, 5, oscillation
Voltage output module, 6, direct voltage output module, 7, voltage detection module, 8, automobile combination meter.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment 1：The anti-negative voltage interference test device of a kind of automobile combination meter of the present embodiment, as shown in Figure 1, packet
Include the control mould that the first power module, second power supply module, energy-storage module, discharge circuit, relay 1, control relay work
Block, anode connection terminal 2 for connecting 8 anode of automobile combination meter and the cathode for connecting 8 cathode of automobile combination meter
Connection terminal 3, the first power module include power supply E1, and second power supply module includes power supply Eb, resistance R1 and voltage detection module
7, energy-storage module includes capacitance C, and discharge circuit includes resistance R2, resistance R3 and resistance R4, and control module includes relay driving
Circuit 4, single-pole double-throw switch (SPDT) S3, oscillating voltage output module 5 and direct voltage output module 6, power supply E1 anodes pass through relay
The contact switch S2 of device 1 is electrically connected with anode connection terminal 2, and power supply E1 cathode are electrically connected with cathode connection terminal 3, resistance R4 mono-
End is electrically connected with the one end resistance R3 and anode connection terminal 2, and the resistance R3 other ends and the hilted broadsword of the one end resistance R2, relay 1 are double
The second non-moving end of throw switch S1 is electrically connected, and the resistance R2 other ends and the resistance R4 other ends, cathode connection terminal 3, capacitance C are just
The moved end of the single-pole double-throw switch (SPDT) S1 of pole, 7 one end of voltage detection module, the electrical connection of power supply Eb anodes, capacitance C cathode and relay
Electrical connection, power supply Eb cathode are electrically connected with the one end resistance R1, the resistance R1 other ends and 7 other end of voltage detection module, relay 1
Single-pole double-throw switch (SPDT) S1 the first non-moving end electrical connection.
When experiment, the anode of automobile combination meter 8 be electrically connected with anode connection terminal 2,8 cathode of automobile combination meter and is born
Pole connection terminal 3 is electrically connected, and control module does not give first the coil of relay to be powered, and contact switch S2 is closed, single-pole double-throw switch (SPDT)
The moved end of S1 is connect with the first non-moving end, at this point, power supply Eb charges to capacitance C, power supply E1 provides positive to automobile combination meter
Voltage, after the time of setting, capacitance C is fully charged, and control module is powered to the coil of relay, and contact switch S2 is disconnected,
The moved end of single-pole double-throw switch (SPDT) S1 is connect with the second non-moving end, at this point, power supply Eb is disconnected with capacitance C, power supply E1 and automobile combination
Instrument disconnects, and fully charged capacitance C provides the negative voltage of decaying to automobile combination meter.Coil of the control module to relay
Alternately power on/off, repeats the above steps, until meeting test requirements document number.After reaching test requirements document number, if automobile combination
Instrument can work normally, then show that the anti-negative voltage jamming performance of automobile combination meter is qualified, otherwise, show automobile combination instrument
The anti-negative voltage jamming performance of table is unqualified.
When needing to enter cyclic test pattern, the moved end of single-pole double-throw switch (SPDT) S3 is connect with the first non-moving end, is vibrated
Voltage output module exports oscillating voltage, relay periodicity break-make, and experimental rig carries out cyclic test；When need enter crawl
When test model, the moved end of single-pole double-throw switch (SPDT) S3 is connect with the second non-moving end, by controlling direct voltage output module
The break-make of output control relay, relay on-off is primary, completes primary experiment.
Voltage detection module detects the voltage of capacitance C, and sends it to the equipment such as monitor terminal, is looked into convenient for staff
See the voltage change situation of capacitance C.Oscillating voltage output module is alternation oscillator.
Embodiment 2：A kind of anti-negative voltage interference test device of automobile combination meter of the present embodiment, control module include
Relay drive circuit 4 and oscillating voltage output module 5, output end and the relay drive circuit 4 of oscillating voltage output module 5
Input terminal electrical connection, the output end of relay drive circuit 4 be electrically connected with the control terminal of relay 1, remaining structure and implementation
Example 1 is identical.
Oscillating voltage output module exports oscillating voltage, relay periodicity break-make, and experimental rig carries out cyclic test.
Embodiment 3：A kind of anti-negative voltage interference test device of automobile combination meter of the present embodiment, control module include
Relay drive circuit 4 and direct voltage output module 6, output end and the relay drive circuit 4 of direct voltage output module 6
Input terminal electrical connection, the output end of relay drive circuit 4 be electrically connected with the control terminal of relay 1, remaining structure and implementation
Example 1 is identical.
By controlling the break-make of the output control relay of direct voltage output module, direct voltage output module output one
Secondary DC voltage, relay on-off is primary, completes primary experiment.
Claims (8)
1. a kind of anti-negative voltage interference test device of automobile combination meter, it is characterised in that：Including the first power module, second
Power module, energy-storage module, relay（1）, control relay work control module, for connect automobile combination meter anode
Anode connection terminal son（2）With the cathode connection terminal for connecting automobile combination meter cathode（3）, the first power module anode
Pass through relay（1）Contact switch S2 and anode connection terminal（2）Electrical connection, the first power module cathode and cathode connecting pin
Son（3）Electrical connection, energy-storage module anode and second power supply module anode and cathode connection terminal（3）Electrical connection, energy-storage module are negative
Pole and relay（1）Single-pole double-throw switch (SPDT) S1 moved end electrical connection, second power supply module cathode and relay（1）Hilted broadsword it is double
The first non-moving end of throw switch S1 is electrically connected, anode connection terminal（2）With relay（1）Single-pole double-throw switch (SPDT) S1 second not
Moved end is electrically connected, relay（1）Control terminal be electrically connected with control module.
2. the anti-negative voltage interference test device of a kind of automobile combination meter according to claim 1, it is characterised in that：Institute
It includes relay drive circuit to state control module（4）With oscillating voltage output module（5）, oscillating voltage output module（5）It is defeated
Outlet and relay drive circuit（4）Input terminal electrical connection, relay drive circuit（4）Output end and relay（1）'s
Control terminal is electrically connected.
3. the anti-negative voltage interference test device of a kind of automobile combination meter according to claim 1, it is characterised in that：Institute
It includes relay drive circuit to state control module（4）With direct voltage output module（6）, direct voltage output module（6）It is defeated
Outlet and relay drive circuit（4）Input terminal electrical connection, relay drive circuit（4）Output end and relay（1）'s
Control terminal is electrically connected.
4. the anti-negative voltage interference test device of a kind of automobile combination meter according to claim 1, it is characterised in that：Institute
It includes relay drive circuit to state control module（4）, single-pole double-throw switch (SPDT) S3, oscillating voltage output module（5）And DC voltage
Output module（6）, oscillating voltage output module（5）Output end be electrically connected with the first non-moving end of single-pole double-throw switch (SPDT) S3, directly
Flow voltage output module（6）Output end be electrically connected with the second non-moving end of single-pole double-throw switch (SPDT) S3, single-pole double-throw switch (SPDT) S3's
Moved end and relay drive circuit（4）Input terminal electrical connection, relay drive circuit（4）Output end and relay（1）'s
Control terminal is electrically connected.
5. the anti-negative voltage interference test device of a kind of automobile combination meter according to claim 1 or 2 or 3 or 4, special
Sign is：The second power supply module includes power supply Eb, resistance R1 and voltage detection module（7）, power supply Eb anodes and voltage are examined
Survey module（7）One end and the electrical connection of energy-storage module anode, power supply Eb cathode are electrically connected with the one end resistance R1, the resistance R1 other ends and
Voltage detection module（7）The other end and relay（1）Single-pole double-throw switch (SPDT) S1 the first non-moving end electrical connection.
6. the anti-negative voltage interference test device of a kind of automobile combination meter according to claim 1 or 2 or 3 or 4, special
Sign is：The energy-storage module includes capacitance C.
7. the anti-negative voltage interference test device of a kind of automobile combination meter according to claim 1 or 2 or 3 or 4, special
Sign is：First power module includes power supply E1.
8. the anti-negative voltage interference test device of a kind of automobile combination meter according to claim 1 or 2 or 3 or 4, special
Sign is：Further include discharge circuit, the discharge circuit includes resistance R2, resistance R3 and resistance R4, the one end resistance R4 and resistance
The one end R3 and the electrical connection of anode connection terminal, the resistance R3 other ends and the one end resistance R2 and relay（1）Single-pole double-throw switch (SPDT)
The second non-moving end of S1 is electrically connected, the resistance R2 other ends and energy-storage module anode, the resistance R4 other ends and cathode connection terminal（3）
Electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810176178.XA CN108802513A (en) | 2018-03-02 | 2018-03-02 | A kind of anti-negative voltage interference test device of automobile combination meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810176178.XA CN108802513A (en) | 2018-03-02 | 2018-03-02 | A kind of anti-negative voltage interference test device of automobile combination meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108802513A true CN108802513A (en) | 2018-11-13 |
Family
ID=64095128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810176178.XA Pending CN108802513A (en) | 2018-03-02 | 2018-03-02 | A kind of anti-negative voltage interference test device of automobile combination meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108802513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117233584A (en) * | 2023-11-16 | 2023-12-15 | 苏州锴威特半导体股份有限公司 | Common mode transient immunity test circuit, method, test device and storage device |
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2018
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| CN202421369U (en) * | 2011-12-21 | 2012-09-05 | 芜湖天宇科技开发有限公司 | Negative voltage interference testing bed for instruments of automobiles and motorcycles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117233584A (en) * | 2023-11-16 | 2023-12-15 | 苏州锴威特半导体股份有限公司 | Common mode transient immunity test circuit, method, test device and storage device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |
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| RJ01 | Rejection of invention patent application after publication |