CN203775413U - Vehicle audio system testing device - Google Patents
Vehicle audio system testing device Download PDFInfo
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- CN203775413U CN203775413U CN201420074917.1U CN201420074917U CN203775413U CN 203775413 U CN203775413 U CN 203775413U CN 201420074917 U CN201420074917 U CN 201420074917U CN 203775413 U CN203775413 U CN 203775413U
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- magnetic
- audio system
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- system testing
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Abstract
The utility model relates to a vehicle audio system testing device, which solves a problem that vehicles unequipped with a radio cannot detect on-off of a circuit of an audio system. Key points of the technical scheme are that the vehicle audio system testing device comprises an AC/DC power conversion module, an audio generator, an output line and a pair of magnetic interfaces, the input end of the AC/DC power conversion module is connected with a power supply, the output end of the AC/DC power conversion module is connected with the audio generator, a left channel output end of the audio generator is connected with a left channel input end of a vehicle audio system, a right channel output end of the audio generator is connected with a right channel input end of the vehicle audio system, a connecting end of the output line is provided with a magnetic plug in a matched mode, and the magnetic interface is matched with the magnetic plug. A person can know the vehicle audio system is good by only hearing blurring sounds, and the vehicle audio system testing device is simple, efficient, high in accuracy and low in cost.
Description
Technical field
The utility model belongs to vehicle body fittings testing apparatus, particularly a kind of vehicle audio system testing apparatus.
Background technology
In automobile manufacture industry, the test of car audio system operating state is the focus of a complaint.Because the vehicle having does not assemble broadcast receiver, the sound system of vehicle cannot detect like this, exist the idle vehicle of loud speaker to arrive market after user complain the problems such as claim.Existing detection method can only detect loud speaker is single, can only detect the quality of loud speaker.Because loud speaker is a generating means in vehicle audio system, also need connection line and power amplifier acoustic signal source etc. all will the later stage combine installation.In automobile manufacture industry, assembly crewman installs to loud speaker on car and connects after sound system wire harness like this, often because some employee's assembly problems cause the empty plug-in mounting of plug, joins the problems such as not in place, causes sound system not work.Do not assemble the break-make that wireless vehicle cannot detection of sound system line.
Chinese Patent Application No. CN201110440748.X, open day discloses a kind of detection method and device of loud speaker on April 18th, 2012, described detection method comprises: when the mobile phone terminal with loud speaker is play default audio files, obtain the actual recorded audio signals amplitude of loud speaker actual current value to be detected and loud speaker to be detected; If described loud speaker actual current value to be detected is no more than the loud speaker reference current value that described default audio files is corresponding, and the actual recorded audio signals amplitude of described loud speaker to be detected is no more than the loud speaker reference recording signal amplitude that described default audio files is corresponding, judge that described loud speaker to be detected is qualified loud speaker; Otherwise, judge that described loud speaker to be detected is defective loud speaker.Although this technical scheme can solve a part of problem, the comparatively complexity of its detection, and for, vehicle-mounted loudspeaker, is more to need efficiency, is exactly mainly sounding problem, without so complicated detection method, develop a kind of simple vehicle audio system testing apparatus imperative.
Utility model content
The utility model has solved in the problem of not assembling the break-make that wireless vehicle cannot detection of sound system line, and a kind of simple and fast is provided, and accuracy is high, vehicle audio system testing apparatus with low cost.
The utility model solves the technical scheme that its technical problem adopts: a kind of vehicle audio system testing apparatus, vehicle sound equipment is tested, comprise power of alterating and direct current modular converter, audio-frequency generator, output line and pair of magnetic interface, described power of alterating and direct current modular converter input is connected with power supply, the output of described power of alterating and direct current modular converter is connected with audio-frequency generator, the L channel output of audio-frequency generator is connected with vehicle sound equipment L channel input by output line, the R channel output of audio-frequency generator is connected with vehicle sound equipment R channel input by output line, on the link of output line, be equipped with magnetic plug, described magnetic interfaces and described magnetic plug match, the center, end of described magnetic plug is contiguous block, the arranged outside of described contiguous block has annular magnetic iron block, the middle part of described magnetic interfaces is provided with conductor block, the shape of described conductor block and described contiguous block matches, the arranged outside of described conductor block has annular magnetic patch, the magnetic of the joint face of the magnetic patch of described pair of magnetic interface is contrary, described magnetic patch matches with corresponding annular magnetic iron block.Arrange like this, as long as audio-frequency generator sends driving, for example require vehicle sound equipment L channel that the pronunciation on " right side " occurs, there is the pronunciation on " left side " in vehicle sound equipment R channel, tester only need hear that ambiguous sound just knows that vehicle sound equipment is good, and the pronunciation explanation L channel of hearing " left side " has been broken, hear that the pronunciation explanation R channel on " right side " broken, test is just very fast like this, and accurately, but iff so also there being a problem, if careless that plug is anti-inserted, can play a reaction, in this case, the creationary method that adopts magnetic plug of the utility model, utilize the principle of the plug two like magnetic poles repel each other of different magnetic, in any case if wrong plug can not be plugged together, play the wrong careless effect of taking precautions against, guaranteed that tester only need hear that ambiguous sound just knows that vehicle sound equipment is good, simple and fast, accuracy is high, with low cost.
As preferably, described magnetic plug is cylindrical, the taking the shape of the letter U of described magnetic interfaces, and the middle part of magnetic interfaces is circular groove, described circular groove and described magnetic plug are matched in clearance.Arrange like this, can guarantee that magnetic plug can arbitrarily not drop out, prevented again the situation that magnetic plug is inserted by force.
As preferably, the groove depth of described groove is more than or equal to half of described magnetic plug length.
As preferably, the arranged outside of described magnetic interfaces has arc convex.Arrange like this, play the effect of auxiliary plug.
As preferably, the link end of described output line in the shape of a spiral.Arrange like this and reduced the probability that output line damages.
As preferably, the L channel output frequency of described audio-frequency generator is greater than the output frequency of R channel.Arrange like this, be conducive to distinguish specifically which sound channel is damaged.
Substantial effect of the present utility model is: the creationary method that adopts magnetic plug of the utility model, utilize the principle of the plug two like magnetic poles repel each other of different magnetic, in any case if wrong plug can not be plugged together, play the wrong careless effect of taking precautions against, guaranteed that tester only need hear that ambiguous sound just knows that vehicle sound equipment is good, simple and fast, accuracy is high, with low cost.
Accompanying drawing explanation
Fig. 1 is a kind of overall structure schematic diagram of the present utility model;
Fig. 2 is a kind of syndeton schematic diagram of magnetic plug in the utility model;
Fig. 3 is a kind of structure for amplifying schematic diagram of magnetic plug in the utility model;
In figure: 1, power of alterating and direct current modular converter, 2, audio-frequency generator, 3, magnetic interfaces, 31, magnetic plug, 32, contiguous block, 33, annular magnetic iron block, 34, conductor block, 35, magnetic patch, 5, vehicle sound equipment, 51, vehicle sound equipment L channel, 52, vehicle sound equipment R channel.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
A kind of vehicle audio system testing apparatus (referring to accompanying drawing 1 Fig. 2 and Fig. 3), vehicle sound equipment 5 is tested, comprise power of alterating and direct current modular converter 1, audio-frequency generator 2, output line and pair of magnetic interface 3, described power of alterating and direct current modular converter input is connected with power supply, the output of described power of alterating and direct current modular converter is connected with audio-frequency generator, the L channel output of audio-frequency generator is connected with vehicle sound equipment L channel 51 inputs by output line, the R channel output of audio-frequency generator is connected with vehicle sound equipment R channel 52 inputs by output line, on the link of output line, be equipped with magnetic plug 31, described magnetic interfaces and described magnetic plug match, the center, end of described magnetic plug is contiguous block 32, the arranged outside of described contiguous block has annular magnetic iron block 33, the middle part of described magnetic interfaces is provided with conductor block 34, the shape of described conductor block and described contiguous block matches, the arranged outside of described conductor block has annular magnetic patch 35, the magnetic of the joint face of the magnetic patch of described pair of magnetic interface is contrary, described magnetic patch matches with corresponding annular magnetic iron block.Described magnetic plug is cylindrical, the taking the shape of the letter U of described magnetic interfaces, and the middle part of magnetic interfaces is circular groove, described circular groove and described magnetic plug are matched in clearance.The groove depth of described groove is more than or equal to half of described magnetic plug length.The arranged outside of described magnetic interfaces has arc convex.The link end of described output line in the shape of a spiral.The L channel output frequency of described audio-frequency generator is greater than the output frequency of R channel.
When the present embodiment is used, as long as audio-frequency generator sends driving, for example require vehicle sound equipment L channel that the pronunciation on " right side " occurs, there is the pronunciation on " left side " in vehicle sound equipment R channel, tester only need hear that ambiguous sound just knows that vehicle sound equipment is good, and the pronunciation explanation L channel of hearing " left side " has been broken, hear that the pronunciation explanation R channel on " right side " broken, test is just very fast like this, and accurately, but iff so also there being a problem, if careless that plug is anti-inserted, can play a reaction, in this case, the creationary method that adopts magnetic plug of the utility model, utilize the principle of the plug two like magnetic poles repel each other of different magnetic, in any case if wrong plug can not be plugged together, play the wrong careless effect of taking precautions against, guaranteed that tester only need hear that ambiguous sound just knows that vehicle sound equipment is good, simple and fast, accuracy is high, with low cost.
Above-described embodiment is a kind of preferably scheme of the present utility model, not the utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.
Claims (6)
1. a vehicle audio system testing apparatus, vehicle sound equipment is tested, it is characterized in that: comprise power of alterating and direct current modular converter, audio-frequency generator, output line and pair of magnetic interface, described power of alterating and direct current modular converter input is connected with power supply, the output of described power of alterating and direct current modular converter is connected with audio-frequency generator, the L channel output of audio-frequency generator is connected with vehicle sound equipment L channel input by output line, the R channel output of audio-frequency generator is connected with vehicle sound equipment R channel input by output line, on the link of output line, be equipped with magnetic plug, described magnetic interfaces and described magnetic plug match, the center, end of described magnetic plug is contiguous block, the arranged outside of described contiguous block has annular magnetic iron block, the middle part of described magnetic interfaces is provided with conductor block, the shape of described conductor block and described contiguous block matches, the arranged outside of described conductor block has annular magnetic patch, the magnetic of the joint face of the magnetic patch of described pair of magnetic interface is contrary, described magnetic patch matches with corresponding annular magnetic iron block.
2. a kind of vehicle audio system testing apparatus according to claim 1, it is characterized in that: described magnetic plug is cylindrical, taking the shape of the letter U of described magnetic interfaces, the middle part of magnetic interfaces is circular groove, described circular groove and described magnetic plug are matched in clearance.
3. a kind of vehicle audio system testing apparatus according to claim 2, is characterized in that: the groove depth of described groove is more than or equal to half of described magnetic plug length.
4. a kind of vehicle audio system testing apparatus according to claim 2, is characterized in that: the arranged outside of described magnetic interfaces has arc convex.
5. a kind of vehicle audio system testing apparatus according to claim 2, is characterized in that: the link end of described output line in the shape of a spiral.
6. a kind of vehicle audio system testing apparatus according to claim 2, is characterized in that: the L channel output frequency of described audio-frequency generator is greater than the output frequency of R channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074917.1U CN203775413U (en) | 2014-02-21 | 2014-02-21 | Vehicle audio system testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074917.1U CN203775413U (en) | 2014-02-21 | 2014-02-21 | Vehicle audio system testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203775413U true CN203775413U (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420074917.1U Expired - Fee Related CN203775413U (en) | 2014-02-21 | 2014-02-21 | Vehicle audio system testing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203775413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809718A (en) * | 2017-11-17 | 2018-03-16 | 江门市凯拓电子有限公司 | A kind of instrument test box for audio amplifier |
-
2014
- 2014-02-21 CN CN201420074917.1U patent/CN203775413U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809718A (en) * | 2017-11-17 | 2018-03-16 | 江门市凯拓电子有限公司 | A kind of instrument test box for audio amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20180221 |