CN209357325U - A kind of teaching device for automobile audio circuit teaching - Google Patents
A kind of teaching device for automobile audio circuit teaching Download PDFInfo
- Publication number
- CN209357325U CN209357325U CN201821644572.3U CN201821644572U CN209357325U CN 209357325 U CN209357325 U CN 209357325U CN 201821644572 U CN201821644572 U CN 201821644572U CN 209357325 U CN209357325 U CN 209357325U
- Authority
- CN
- China
- Prior art keywords
- teaching
- audio
- power amplifier
- fuse
- automobile
- 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.)
- Expired - Fee Related
Links
- 238000004146 energy storage Methods 0.000 claims abstract description 37
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The utility model relates to a kind of teaching devices for automobile audio circuit teaching, including energy-storage travelling wave tube, fuse, main system of audio, audio converter, power amplifier and car horn;Energy-storage travelling wave tube is by fuse respectively with main system of audio, audio converter and power amplifier mechatronics, and respectively with main system of audio and power amplifier mechatronics, power amplifier is electrically connected audio converter with car horn.Compared to the existing teaching case for automobile audio circuit teaching; teaching device provided by the utility model for automobile audio circuit teaching; fuse is main system of audio, audio converter and power amplifier provide overload protection; pass through setting audio converter and power amplifier; the simulated automotive acoustics circuit that teaching device can be utilized more perfect improves the integrity that driving school student recognizes automobile audio circuit.
Description
Technical field
The utility model relates to vehicle teaching equipment technical field more particularly to it is a kind of for automobile audio circuit teaching
Demonstration apparatus.
Background technique
With the improvement of living standards with the improvement of economic condition, automobile has become the universal vehicles, drives
The fast development of driving school.In recent years, new traffic method is promulgated, national policy guidance increases traffic administration dynamics, and driving school is to
The examination of member is also more stringent therewith and standardizes, and increases the teaching of the theoretical knowledge of automobile and its driving, and it is largely convenient to need
In the ancillary equipment of vehicle teaching.
In the related technology, a kind of teaching case for automobile audio circuit teaching, including teaching cabinet are set in teaching cabinet
It is equipped with demonstrator, demonstrator is provided with automobile audio control circuit, and automobile audio control circuit includes ignition switch, sound equipment master
Machine, loudspeaker and power supply, main system of audio are electrically connected with ignition switch, loudspeaker and power supply respectively, and loudspeaker is fixed
On teaching cabinet.
However, aforementioned teaching case is still since automobile audio circuit is usually there are also functional components such as power amplifier, audio conversions
So without good simulated automotive acoustics circuit, it will cause driving school student and recognize the not perfect of automobile audio circuit.
Utility model content
Technical problem to be solved in the utility model is for showing for automobile audio circuit teaching in the prior art
It teaches case still without good simulated automotive acoustics circuit, it is incomplete to the cognition of automobile audio circuit to will cause driving school student
Deficiency provides a kind of teaching device for automobile audio circuit teaching, including energy-storage travelling wave tube, fuse, main system of audio, audio
Converter, power amplifier and car horn;The energy-storage travelling wave tube by the fuse respectively with the main system of audio, the audio
Converter and the power amplifier mechatronics, the audio converter respectively with the main system of audio and the power amplifier mechatronics,
The power amplifier is electrically connected with the car horn.
The beneficial effects of the utility model are: fuse be connected electrically in energy-storage travelling wave tube and main system of audio, audio converter and
Between power amplifier, overload protection is provided for main system of audio, audio converter and power amplifier;Audio converter respectively with main system of audio
With power amplifier mechatronics, for converting the audio format of main system of audio and power amplifier sound intermediate frequency, power amplifier is electrically connected with car horn
It connects, power amplifier is used for what automobile audio circuit was imparted knowledge to students compared to existing to car horn for amplifying simultaneously output audio signal
The simulated automotive acoustics circuit that teaching case, audio converter and power amplifier can make teaching device more perfect improves driving school
Student recognizes the integrity of automobile audio circuit and the quality of instruction of driving school.
Further, the number of the fuse is two, and the energy-storage travelling wave tube passes through a fuse and the sound
Host electrical connection is rung, the energy-storage travelling wave tube is common by another described fuse and the audio converter and the power amplifier
Electrical connection.
The beneficial effect of above-mentioned further scheme is: an electrical connection energy-storage travelling wave tube and sound equipment master in two fuses
Machine, it is ensured that the reliability of fuse;Another fuse is connected electrically in energy-storage travelling wave tube, audio converter and power amplifier, phase
Than being electrically connected audio converter and power amplifier by two fuses in energy-storage travelling wave tube, the quantity of fuse can be reduced, is reduced
Cost.
Further, the energy-storage travelling wave tube is capacitor, and the fuse is 30A fuse.
The beneficial effect of above-mentioned further scheme is: capacitor can be directly electrically connected with external power supply, utilize filling for capacitor
Pulsed dc voltage is become relatively stable DC voltage by flash-over characteristic, improves circuit between fuse and external power supply
Stability reduces the cost of teaching device by the way that fuse is arranged.
It further, further include frequency divider and high pitch switch, the car horn includes suit loudspeaker, coaxial horn and ultralow
Sound loudspeaker;The frequency divider and the suit loudspeaker, high pitch switch and the power amplifier mechatronics, the coaxial horn and
The subwoofer electrical connection.
The beneficial effect of above-mentioned further scheme is: by setting suit loudspeaker, coaxial horn and subwoofer, so that
The diversity of sound equipment in the more perfect simulated automotive acoustics circuit of teaching device;Frequency divider and loudspeaker, high pitch switch and function
Put mechatronics, frequency divider can separating audio be low, medium and high sound, realize that better audio frequency effect, high pitch switch can be controlled
Speaker playback high pitch processed improves the flexibility of suit loudspeaker;Coaxial horn is electrically connected with subwoofer, simplifies circuit knot
Structure.
It further, further include power supply adaptor;The power supply adaptor is electrically connected with the energy-storage travelling wave tube.
The beneficial effect of above-mentioned further scheme is: power supply adaptor is for being converted to the alternating current that external power supply inputs
Suitable for the direct current of energy-storage travelling wave tube, compared to traditional battery, the acoustic circuit in teaching device can be overcome to be easy
Now abnormal problem can guarantee that acoustic circuit operates normally.
It further, further include in hollow teaching case, the power supply adaptor includes charging interface;The energy-storage travelling wave tube,
The fuse, the main system of audio, the audio converter, the power amplifier and the car horn are embedded in the teaching
On the cabinet of case, the power supply adaptor is arranged inside the teaching case, and the charging interface is embedded in the teaching case
On cabinet.
The beneficial effect of above-mentioned further scheme is: passing through the case integrated integrated energy storage element of teaching, fuse, sound equipment master
Machine, audio converter, power amplifier, car horn and power supply adaptor facilitate matched component in teaching automobile audio route
Method of modifying, control principle and trouble hunting.
Further, the length range of the teaching case is 1.6-2 meters, and the width range of the teaching case is 1.3-1.7 meters,
The thickness range of the teaching case is 0.2-0.4 meters.
The beneficial effect of above-mentioned further scheme is: length, height and thickness by limiting teaching case, Neng Goujian
Care for the reliability and cost of teaching case.
It further, further include support frame, support frame as described above includes supporting table and at least two pulleys that are symmetric;Institute
The table top that the supporting table is arranged in teaching case is stated, at least two pulleys are rotatably fixed on the bottom of the supporting table
Portion.
The beneficial effect of above-mentioned further scheme is: teaching case is arranged on the table top of supporting table, can guarantee teaching case
Stability, by the bottom of supporting table be arranged pulley, be capable of the position of movable supporting frame, facilitate teaching.
Further, the number of the pulley is four, and four pulleys, which are rectangle, is distributed in the supporting table bottom.
The beneficial effect of above-mentioned further scheme is: it is rectangle by four pulleys of setting and is distributed in supporting table bottom,
Guarantee the stability in support frame sliding process.
Further, the land length range of the supporting table is 1.6-2 meters, and the mesa width range of the supporting table is
0.4-0.5 meters, the table surface height range of the supporting table is 0.5-1 meters.
The beneficial effect of above-mentioned further scheme is: thick by the land length, table surface height and table top that limit supporting table
Size is spent, the stability and cost of supporting table can be taken into account.
Detailed description of the invention
Fig. 1 is a kind of electricity for teaching device for automobile audio circuit teaching that the utility model one embodiment provides
Road schematic diagram;
Fig. 2 is a kind of teaching device for automobile audio circuit teaching that another embodiment of the utility model provides
Circuit diagram;
Fig. 3 is a kind of knot for teaching device for automobile audio circuit teaching that the utility model one embodiment provides
Structure schematic diagram;
Fig. 4 is a kind of teaching device for automobile audio circuit teaching that another embodiment of the utility model provides
Structural schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1- energy-storage travelling wave tube, 2- fuse, 3- main system of audio, 4- audio converter, 5- power amplifier, 6- car horn, 7- points
Frequency device, 8- high pitch switch, 9- power supply adaptor, 10- teaching case, 20- support frame;
21- supporting table, 22- pulley, 61- suit loudspeaker, 62- coaxial horn, 63- subwoofer, 91- charging interface,
211- horizontal platform, the vertical connection frame of 212-, 213- horizontal connection frame.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model, the appended drawing reference of same parts is consistent.
As shown in Figure 1, a kind of teaching device for automobile audio circuit teaching provided in this embodiment, including energy storage member
Part 1, fuse 2, main system of audio 3, audio converter 4, power amplifier 5 and car horn 6, energy-storage travelling wave tube 1 are distinguished by fuse 2
It is electrically connected with main system of audio 3, audio converter 4 and power amplifier 5, audio converter 3 is electric with main system of audio 4 and power amplifier 5 respectively
Connection, power amplifier 5 are electrically connected with car horn 6.
Specifically, audio converter 3, main system of audio 4, power amplifier 5 and car horn 6 are electrically connected by loudspeaker special line,
Main system of audio 4 can use DVD main system of audio, and the number of car horn 6 is 5, and 5 car horns 6 are loudspeaker.
Fuse 2 is connected electrically between energy-storage travelling wave tube 1 and main system of audio 3, audio converter 4 and power amplifier 5, is sound equipment master
Machine 3, audio converter 4 and power amplifier 5 provide overload protection;Audio converter 3 is electrically connected with main system of audio 4 and power amplifier 5 respectively
It connects, for converting the audio format of 5 sound intermediate frequency of main system of audio 4 and power amplifier, power amplifier 5 is electrically connected with car horn 6, power amplifier
5 for amplifying and output audio signal is to car horn 6, compared to the existing teaching case for automobile audio circuit teaching,
The simulated automotive acoustics circuit that audio converter 3 and power amplifier 5 can make teaching device more perfect improves driving school student and recognizes
Know the integrity of automobile audio circuit and the quality of instruction of driving school.
Preferably, as shown in Figure 1, the number of fuse 2 is two, energy-storage travelling wave tube 1 passes through a fuse 2 and sound equipment master
Machine 3 is electrically connected, and energy-storage travelling wave tube 1 is electrically connected by another fuse 2 with audio converter 4 and power amplifier 5 jointly.
One in two fuses 2 is connected electrically in energy-storage travelling wave tube 1 and main system of audio 3, it is ensured that fuse 2 it is reliable
Property;Another fuse 2 is connected electrically in energy-storage travelling wave tube 1, audio converter 4 and power amplifier 5, passes through two compared to energy-storage travelling wave tube 1
A fuse electrical connection audio converter 4 and power amplifier 5, can reduce the quantity of fuse, reduce the cost of teaching device.
Preferably, in conjunction with shown in Fig. 1 and Fig. 2, energy-storage travelling wave tube 1 is capacitor, and fuse 2 is 30A fuse;Capacitor can be straight
It connects and is electrically connected with external power supply, using the charge-discharge characteristic of capacitor, pulsed dc voltage is become into relatively stable DC voltage,
The stability for improving circuit between fuse and external power supply reduces the cost of teaching device by the way that fuse is arranged.
Preferably, as shown in Fig. 2, further including frequency divider 7 and high pitch switch 8, car horn 6 includes suit loudspeaker 61, same
Axis loudspeaker 62 and subwoofer 63;Frequency divider 7 is electrically connected with suit loudspeaker 61, high pitch switch 8 and power amplifier 5, coaxial horn
62 are electrically connected with subwoofer 63.
Specifically, the number of frequency divider 7 is two, and the number of high pitch switch 8 is two, and two high pitch switches 8 can be equal
For switch button;The number of car horn 6 is 5, wherein two car horns 6 are suit loudspeaker 61, two car horns 6
For coaxial horn 62, a car horn 6 is subwoofer 63, and subwoofer 63 is electrically connected with a coaxial horn 62.
By setting suit loudspeaker 61, coaxial horn 62 and subwoofer 63, so that the mould that teaching device is more perfect
The diversity of sound equipment in quasi- automobile audio circuit;Frequency divider 7 is electrically connected with suit loudspeaker 61, high pitch switch 8 and power amplifier 5, point
Frequency device 7 can separating audio be low, medium and high sound, realize better audio frequency effect, high pitch switch 8, which can control, is set with loudspeaker 61
High pitch is reset, the flexibility of suit loudspeaker 61 is improved;Coaxial horn 62 is electrically connected with subwoofer 63, simplifies circuit structure.
Preferably, as shown in Fig. 2, further including power supply adaptor 9, power supply adaptor 9 is electrically connected with energy-storage travelling wave tube 1, power supply
Adapter 9 is used to the alternating current that external power supply inputs being converted to the direct current suitable for energy-storage travelling wave tube, compared to traditional storage
It is abnormal can to overcome the problems, such as that the acoustic circuit in teaching device is easy to appear for battery, can guarantee that acoustic circuit operates normally.
Preferably, as shown in figure 3, further including in hollow teaching case 10, power supply adaptor 9 includes charging interface 91;Storage
Energy element 1, fuse 2, main system of audio 3, audio converter 4, power amplifier 5 and car horn 6 are embedded in the cabinet of teaching case 10
On, power supply adaptor 9 is arranged inside the teaching case 10, and charging interface 91 is embedded on the cabinet of teaching case 10.
Specifically, teaching case 10 includes preceding box body wall and rear cabinet body wall, and preceding box body wall is inlaid with energy-storage travelling wave tube 1, fuse
2, main system of audio 3, audio converter 4, power amplifier 5, suit loudspeaker 61, coaxial horn 62, subwoofer 63,7 and of frequency divider
High pitch switch 8 passes through the integrated energy-storage travelling wave tube 1 of teaching case 10, fuse 2, main system of audio 3, audio converter 4, power amplifier
Machine 5, car horn 6, frequency divider 7, high pitch switch 8 and power supply adaptor 9, facilitate teaching automobile audio route in matched it is each
Component;In energy-storage travelling wave tube 1, fuse 2, main system of audio 3, audio converter 4, power amplifier 5, car horn 6, frequency divider 7, high pitch
The inner surface of box body wall, can save 10 inner space of teaching case before electric wire between switch 8 and power supply adaptor 9 is fixed on;
Rear cabinet body wall is provided with double door, is easy to open teaching case 10 with the electric wire trend in automobile audio route of imparting knowledge to students, facilitates teaching
Method of modifying, control principle and the trouble hunting of automobile audio route.
Wherein, the upper left corner and the upper right corner of tank wall, two coaxial horns 62 are right before two suit loudspeaker 61 are symmetrically distributed in
The lower left corner and the lower right corner for claiming tank wall before being distributed in are located at two coaxial loudspeakers on tank wall before one subwoofer 63 is distributed in
Position between 62.
Preferably, as shown in figure 3, the length range of teaching case 10 is 1.6-2 meters, the width range of teaching case 10 is 1.3-
1.7 meters, the thickness range of teaching case 10 is 0.2-0.4 meters.
Such as: teaching case 10 can be the cuboid being made of metal material, length, the width and thickness of teaching case 10
1.8 meters, 1.5 meters and 0.2 meter are followed successively by, alternatively, the length of teaching case 10, width and thickness are followed successively by 1.6 meters, 1.3 meters and 0.4
Rice, alternatively, the length of teaching case 10, width and thickness are followed successively by 2 meters, 1.7 meters and 0.3 meter.
By limit teaching case 10 length, height and thickness, can either take into account teaching case 10 reliability and
Cost also can be 10 integrated energy storage element 1 of teaching case, fuse 2, main system of audio 3, audio converter 4, power amplifier 5, automobile
Loudspeaker 6, frequency divider 7, high pitch switch 8 and power supply adaptor 9 provide enough accommodation spaces.
It preferably, further include support frame 20 in conjunction with shown in Fig. 3 and Fig. 4, support frame 20 includes supporting table 21 and divides in symmetrical
The table top of supporting table 21 is arranged at least two pulleys 22 of cloth, teaching case 10, and at least two pulleys 22 are rotatably fixed on
The bottom of supporting table 21.
Such as: the bottom of supporting table 21 be provided in left and right distribution and can 360 degree rotate two tripods, a triangle
Frame is rotatably fixed with a pulley 22, and such pulley can be rotated with 360 degree, to enhance the flexibility of the rotation of pulley 22.
Teaching case 10 is arranged on the table top of supporting table 21, can guarantee the stability of teaching case 10, by supporting table
Pulley is arranged in 21 bottom, is capable of the position of movable supporting frame 20, facilitates teaching.
Preferably, as shown in figure 4, the number of pulley 22 is four, four pulleys 22, which are rectangle, is distributed in supporting table 21
Bottom.
Specifically, supporting table 21 includes horizontal platform 211, opposite two vertical connection frames 212 and horizontal connection frame 213,
The frame structure being rectangle that each vertical connection frame 212 can be welded by metal side tube, two vertical connection frames 212
Between be fixed with the horizontal connection frame 213 parallel with horizontal platform 211;Wherein, the bottom of each vertical connection frame 212, which is provided with, is in
Two symmetrical pulleys 22.
It is rectangle by four pulleys 22 of setting and is distributed in 21 bottom of supporting table, guaranteed in 20 sliding process of support frame
Stability.
Preferably, as shown in figure 4, the land length range of supporting table 21 is 1.6-2 meters, the mesa width model of supporting table 21
Enclosing is 0.4-0.5 meters, and the table surface height range of supporting table 21 is 0.5-1 meters.
Such as: land length, mesa width and the table surface height of supporting table 21 are followed successively by 1.8 meters, 0.5 meter and 0.75 meter,
Alternatively, the land length of supporting table 21, mesa width and table surface height are followed successively by 1.6 meters, 0.45 meter and 0.5 meter, alternatively, support
Land length, mesa width and the table surface height of platform 21 are followed successively by 2 meters, 0.4 meter and 1 meter, by the table top for limiting supporting table 21
Length, table surface height and mesa thickness size can take into account the stability and cost of supporting table 21.
It should be noted that in each implementation provided by the utility model only for the teaching device of automobile audio circuit teaching
It is related to the improvement of shape of product and structure, is not related to the improvement of software program.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of teaching device for automobile audio circuit teaching, which is characterized in that including energy-storage travelling wave tube (1), fuse
(2), main system of audio (3), audio converter (4), power amplifier (5) and car horn (6);The energy-storage travelling wave tube (1) passes through described
Fuse (2) is electrically connected with the main system of audio (3), the audio converter (4) and the power amplifier (5) respectively, the sound
Frequency converter (4) is electrically connected with the main system of audio (3) and the power amplifier (5) respectively, the power amplifier (5) and the automobile
Loudspeaker (6) electrical connection.
2. a kind of teaching device for automobile audio circuit teaching according to claim 1, which is characterized in that described molten
The number of disconnected device (2) is two, and the energy-storage travelling wave tube (1) is electrically connected by a fuse (2) with the main system of audio (3)
It connects, the energy-storage travelling wave tube (1) is total by another described fuse (2) and the audio converter (4) and the power amplifier (5)
With electrical connection.
3. a kind of teaching device for automobile audio circuit teaching according to claim 1, which is characterized in that the storage
Energy element (1) is capacitor, and the fuse (2) is 30A fuse.
4. a kind of teaching device for automobile audio circuit teaching according to claim 1, which is characterized in that further include
Frequency divider (7) and high pitch switch (8), the car horn (6) include suit loudspeaker (61), coaxial horn (62) and subwoofer loudspeaker
(63);The frequency divider (7) is electrically connected with the suit loudspeaker (61), high pitch switch (8) and the power amplifier (5),
The coaxial horn (62) is electrically connected with the subwoofer (63).
5. a kind of teaching device for automobile audio circuit teaching according to claim 1-4, feature exist
In further including power supply adaptor (9);The power supply adaptor (9) is electrically connected with the energy-storage travelling wave tube (1).
6. a kind of teaching device for automobile audio circuit teaching according to claim 5, which is characterized in that further include
In hollow teaching case (10), the power supply adaptor (9) includes charging interface (91);The energy-storage travelling wave tube (1), the fusing
Device (2), the main system of audio (3), the audio converter (4), the power amplifier (5) and the car horn (6) are embedded in
On the cabinet of the teaching case (10), power supply adaptor (9) setting is internal in the teaching case (10), the charging interface
(91) it is embedded on the cabinet of the teaching case (10).
7. a kind of teaching device for automobile audio circuit teaching according to claim 6, which is characterized in that described to show
The length range for teaching case (10) is 1.6-2 meters, and the width range of the teaching case (10) is 1.3-1.7 meters, the teaching case
(10) thickness range is 0.2-0.4 meters.
8. a kind of teaching device for automobile audio circuit teaching according to claim 6, which is characterized in that further include
Support frame (20), support frame as described above (20) include supporting table (21) and at least two pulleys (22) being symmetric;It is described to show
Teach case (10) setting in the table top of the supporting table (21), at least two pulleys (22) are rotatably fixed on the support
Platform (21) bottom.
9. a kind of teaching device for automobile audio circuit teaching according to claim 8, which is characterized in that the cunning
The number for taking turns (22) is four, and four pulleys (22), which are rectangle, is distributed in the supporting table (21) bottom.
10. a kind of teaching device for automobile audio circuit teaching according to claim 8, which is characterized in that described
The land length range of supporting table (21) is 1.6-2 meters, and the mesa width range of the supporting table (21) is 0.4-0.5 meters, institute
The table surface height range for stating supporting table (21) is 0.5-1 meters.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821644572.3U CN209357325U (en) | 2018-10-11 | 2018-10-11 | A kind of teaching device for automobile audio circuit teaching |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821644572.3U CN209357325U (en) | 2018-10-11 | 2018-10-11 | A kind of teaching device for automobile audio circuit teaching |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209357325U true CN209357325U (en) | 2019-09-06 |
Family
ID=67781822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821644572.3U Expired - Fee Related CN209357325U (en) | 2018-10-11 | 2018-10-11 | A kind of teaching device for automobile audio circuit teaching |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209357325U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111697558A (en) * | 2020-06-22 | 2020-09-22 | 珠海格力电器股份有限公司 | Demonstrator power management circuit and wireless demonstrator with same |
-
2018
- 2018-10-11 CN CN201821644572.3U patent/CN209357325U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111697558A (en) * | 2020-06-22 | 2020-09-22 | 珠海格力电器股份有限公司 | Demonstrator power management circuit and wireless demonstrator with same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2021203714A1 (en) | Direct current charger detection system and method | |
CN209357325U (en) | A kind of teaching device for automobile audio circuit teaching | |
CN102862513A (en) | System and method for simulating running sound of motor vehicle | |
US20190341787A1 (en) | Energy system for a motor vehicle and method for charging an electrical energy storage device | |
CN203135624U (en) | Motor | |
CN202652513U (en) | Multifunctional vibrator | |
CN202306942U (en) | Automobile electronic modular practical training table | |
CN202871891U (en) | Chargeable battery of electric car | |
CN205354413U (en) | English learning device | |
CN201657279U (en) | Moving coil type electroacoustic converter | |
CN201114736Y (en) | Car multi-voice horn | |
CN217238948U (en) | Automobile power-to-power integrated rack | |
CN204184253U (en) | The automobile in the visual field can be provided for rear car | |
CN207166736U (en) | A kind of Simple electric classroom audio amplifier | |
CN202663542U (en) | Automatic wired broadcast switching system | |
CN204440683U (en) | A kind of experimental provision for optical communication modulation and demodulation | |
CN206181366U (en) | Vehicle audio assembly | |
CN206984302U (en) | Unmanned vehicle supporting structure | |
CN219267162U (en) | AC charging pile fault setting and measuring box | |
CN205080887U (en) | Portable multi -functional electronic propagates ware | |
CN211827685U (en) | Radar of backing a car teaching presentation device | |
CN215298604U (en) | Teaching and training board for main relay of high-voltage system of new energy automobile | |
CN207117934U (en) | A kind of Microspeaker being easily installed | |
CN209765861U (en) | Physical multifunctional electricity experiment platform | |
CN203485823U (en) | Horn mechanism for steering wheel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
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: 20190906 |