CN206954093U - A kind of control circuit of electric vehicle electric horn - Google Patents
A kind of control circuit of electric vehicle electric horn Download PDFInfo
- Publication number
- CN206954093U CN206954093U CN201720154281.5U CN201720154281U CN206954093U CN 206954093 U CN206954093 U CN 206954093U CN 201720154281 U CN201720154281 U CN 201720154281U CN 206954093 U CN206954093 U CN 206954093U
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- electric
- electric horn
- converter
- horn
- steering wheel
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Abstract
A kind of mode of connection of electric vehicle electric horn, including power battery pack GB, urgent power-off switch SB, fuse FU, ignition switch S1, DC converter DC/DC, vehicle mounted electric accessory load R, electric horn HA, steering wheel loudspeaker button switch S2 and electric horn breaker point unit KA, during without the electric horn breaker point unit KA, DC converter DC/DC output cathodes described in the electric horn HA contact portions, another contact bonding of electric horn HA, the steering wheel loudspeaker button switch S2 connections DC converter DC/DC output negative poles；When having the electric horn breaker point unit KA, electric horn breaker point unit KA described in the electric horn HA contact portions, DC converter DC/DC output negative poles described in another contact portions of electric horn HA, the steering wheel loudspeaker button switch S2 connections DC converter DC/DC output negative poles.
Description
Technical field
It the utility model is related to electric vehicle circuit field, and in particular to a kind of control circuit of electric vehicle electric horn.
Background technology
At present, existing electric vehicle accessory continues to use the ready-made accessory of fuel-engined vehicle mostly, and only a small number of accessories are by new
After exploitation improves, electric vehicle use is specialized in.Therefore, the electric vehicle electric horn button switch that use direction disk turns to is also most
Set on the steering wheel, and use one wire system, i.e. bonding（Get a lift frame）.Due to electric horn button switch bonding, direct current is caused
The direct bonding of converter DC/DC output negative poles.When vehicle has isolated DC converter DC/DC, vehicle frame and car
Carry appliances power source 12V negative poles to be connected, be the shortcomings that this connection：Any positive terminal of vehicle mounted electrical apparatus if as assembling and setting, tear open
Unload maintenance or collision be connected with vehicle frame, once energization will occur in short circuit phenomenon, particularly maintenance process, electric vehicle that
More vehicle mounted electric devices, problem investigation are time-consuming.In addition, when being equipped with non-isolated DC converter DC/DC, direct current becomes
Parallel operation DC/DC input side and the shared negative pole of outlet side, due to electric horn button switch bonding, cause power battery pack negative pole
Direct bonding, because electric vehicle dynamic cell group voltage is most in the market is higher than 48V, made to driver and crew's personal safety
Into very big hidden danger.
The content of the invention
The shortcomings that the purpose of this utility model is to overcome prior art, there is provided a kind of effectively to reduce electrical vehicular power
Battery electrode and vehicle mounted electrical apparatus power cathode bonding chance, prevent vehicle in failure, collision and maintenance and debugging process
Mistake short circuit, there is provided a kind of control circuit of safer electric vehicle electric horn.
A kind of technical scheme of the control circuit of electric vehicle electric horn of the utility model is：Including power battery pack GB,
Urgent power-off switch SB, fuse FU, ignition switch S1, DC converter DC/DC, vehicle mounted electric accessory load R, electric horn HA,
Steering wheel loudspeaker button switch S2 and electric horn breaker point unit KA, it is characterised in that：During without the electric horn breaker point unit KA, the electricity
DC converter DC/DC output cathodes described in horn in H A contact portions, another contact bonding of electric horn HA, the steering wheel
The horn switch button S2 connections DC converter DC/DC output negative poles；When having the electric horn breaker point unit KA, the electric loudspeaker
Electric horn breaker point unit KA described in HA contact portions, DC converter DC/DC described in another contact portions of electric horn HA are defeated
Go out negative pole, the steering wheel loudspeaker button switch S2 connections DC converter DC/DC output negative poles.
A kind of control circuit of electric vehicle electric horn of the present utility model, its great advantage are：Electrical vehicular power electricity
Pond group GB negative poles and vehicle mounted electrical apparatus power supply 12V negative poles are separated by steering wheel loudspeaker button switch S2 with vehicle frame, are avoided under normality
Electric vehicle dynamic cell group GB negative poles and vehicle mounted electrical apparatus power supply 12V minus earth phenomenons, can effectively reduce power battery pack
The chance of GB negative poles and vehicle mounted electrical apparatus power supply 12V minus earths, prevents mistake of the vehicle in failure, collision and maintenance process
Short circuit, suitable for various electric vehicles.
A kind of control circuit of electric vehicle electric horn of the present utility model, the DC converter DC/DC are non-isolated
Code converter, transform effect are good.The steering wheel loudspeaker button switch S2 is one wire system bonding, is had a safety feature.
Brief description of the drawings
Fig. 1 be the utility model electric horn circuit loop without electric horn breaker point unit KA when circuit diagram；
Fig. 2 is circuit diagram when there is electric horn breaker point unit KA in the utility model electric horn circuit loop.
Embodiment
A kind of control circuit of electric vehicle electric horn is the utility model is related to, as shown in Figure 1 and Figure 2, including electrokinetic cell
Group GB, urgent power-off switch SB, fuse FU, ignition switch S1, DC converter DC/DC, vehicle mounted electric accessory load R, electric loudspeaker
HA, steering wheel loudspeaker button switch S2 and electric horn breaker point unit KA, wherein：During without the electric horn breaker point unit KA, the electricity
DC converter DC/DC output cathodes described in horn in H A contact portions, another contact bonding of electric horn HA, the steering wheel
The horn switch button S2 connections DC converter DC/DC output negative poles；When having the electric horn breaker point unit KA, the electric loudspeaker
Electric horn breaker point unit KA described in HA contact portions, DC converter DC/DC described in another contact portions of electric horn HA are defeated
Go out negative pole, the steering wheel loudspeaker button switch S2 connections DC converter DC/DC output negative poles.Its great advantage is：
Electric vehicle dynamic cell group GB negative poles and vehicle mounted electrical apparatus power supply 12V negative poles pass through steering wheel loudspeaker button switch S2 and vehicle frame point
From avoiding electric vehicle dynamic cell group GB negative poles and vehicle mounted electrical apparatus power supply 12V minus earth phenomenons under normality, can effectively subtract
The chance of few power battery pack GB negative poles and vehicle mounted electrical apparatus power supply 12V minus earths, prevents vehicle in failure, collision and maintenance
During mistake short circuit, suitable for various electric vehicles.The DC converter DC/DC is non-isolation type converter, conversion
Effect is good.The steering wheel loudspeaker button switch S2 is one wire system bonding, is had a safety feature.
Claims (3)
1. a kind of control circuit of electric vehicle electric horn, including power battery pack GB, urgent power-off switch SB, fuse FU,
Ignition switch S1, DC converter DC/DC, vehicle mounted electric accessory load R, electric horn HA, steering wheel loudspeaker button switch S2 and electricity
Electric horn breaker point unit KA, it is characterised in that：Control circuit is that DC converter DC/DC described in the electric horn HA contact portions is defeated
Go out positive pole, another contact bonding of electric horn HA, the steering wheel loudspeaker button switch S2 connections DC converter DC/
DC output negative poles；Or electric horn breaker point unit KA described in the electric horn HA contact portions, another contact portions of electric horn HA
The DC converter DC/DC output negative poles, the steering wheel loudspeaker button switch S2 connections DC converter DC/DC are defeated
Go out negative pole.
A kind of 2. control circuit of electric vehicle electric horn as claimed in claim 1, it is characterised in that the DC converter DC/
DC is non-isolation type converter.
3. a kind of control circuit of electric vehicle electric horn as claimed in claim 1, it is characterised in that the steering wheel loudspeaker is pressed
Button switch S2 is one wire system bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720154281.5U CN206954093U (en) | 2017-02-21 | 2017-02-21 | A kind of control circuit of electric vehicle electric horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720154281.5U CN206954093U (en) | 2017-02-21 | 2017-02-21 | A kind of control circuit of electric vehicle electric horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206954093U true CN206954093U (en) | 2018-02-02 |
Family
ID=61377106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720154281.5U Active CN206954093U (en) | 2017-02-21 | 2017-02-21 | A kind of control circuit of electric vehicle electric horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206954093U (en) |
-
2017
- 2017-02-21 CN CN201720154281.5U patent/CN206954093U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |