CN202795646U - Approach warning device for electric vehicle maintenance - Google Patents
Approach warning device for electric vehicle maintenance Download PDFInfo
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- CN202795646U CN202795646U CN 201220428321 CN201220428321U CN202795646U CN 202795646 U CN202795646 U CN 202795646U CN 201220428321 CN201220428321 CN 201220428321 CN 201220428321 U CN201220428321 U CN 201220428321U CN 202795646 U CN202795646 U CN 202795646U
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- infrared sensor
- warning device
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- alarm module
- approach warning
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- 238000012423 maintenance Methods 0.000 title claims abstract description 34
- 238000013459 approach Methods 0.000 title abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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- 235000014698 Brassica juncea var multisecta Nutrition 0.000 description 1
- 241000251184 Rajiformes Species 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model aims to provide an approach warning device for electric vehicle maintenance and provides safety guarantee for maintenance of electric vehicles. The approach warning device comprises a sensor module, an alarm module and a power supply module, the sensor module and the alarm module are mutually connected, the power supply module is used for providing power for the sensor module and the alarm module, the sensor module comprises an infrared sensor, and the alarm module comprises a loudspeaker which is connected with an output end of the infrared sensor. During usage, the approach warning device for the electric vehicle maintenance is started and placed at a position of a plug in connector or a switch which is particularly required to be cut off, when the infrared sensor detects that a person approaches, the loudspeaker alarms to warn a maintainer, and certainly the approach warning device is widely applicable to other occasions, such as high voltage electric device surroundings where persons are forbidden from approaching,. The approach warning device for the electric vehicle maintenance is small in size, light, capable of being carried about, convenient to use and excellent in practicability.
Description
Technical field
The utility model belongs to the electric vehicle engineering field, is specifically related to a kind of electric automobile maintenance proximity sensing device, for the maintenance of electric automobile provides safety guarantee.
Background technology
Along with the continuous maturation of electric vehicle engineering, the quantity of electric automobile is increasing year by year also.Maintenance, the maintenance job of electric automobile also increase thereupon.The electrical maintenance of the electrical maintenance of electric automobile and conventional gasoline car has a great difference, the electrification in high voltage parts of conventional gasoline car are less, when engine stop, high voltage component does not generally have high-tension electricity and exists, so maintenance traditional vehicle electrical equipment generally needn't too much be considered risk of shock.And electric automobile has increased electric drive part, mostly is high voltage, high current components, must take into full account the risk of hot line job when maintenance.For guaranteeing operator's safety, after high tension loop must being disconnected, keep in repair again.
High voltage loop of electric automobile generally can run through whole vehicle body, often can appear at the tailstock and disconnect high tension loop, and then in the maintenance of headstock place, whether maintenance person can't be taken the tailstock into account in the maintenance process other staff.After the maintenance personal disconnects high tension loop, implement in the process of maintenance, if there is other staff's mistake that high tension loop is connected, will directly cause the maintenance personal to get an electric shock or serious burn and scald, therefore have larger potential safety hazard.
Summary of the invention
The purpose of this utility model is to propose a kind of volume electric automobile maintenance proximity sensing device small and exquisite, easy to use, for the maintenance of electric automobile provides safety guarantee.
Electric automobile maintenance of the present utility model comprises continuous sensor assembly and alarm module with the proximity sensing device, and is the power module of sensor assembly and alarm module power supply; Described sensor assembly comprises infrared sensor, and described alarm module has the loudspeaker that links to each other with described infrared sensor output terminal.
In use, the special plug-in unit or the switch place that disconnect of needing opened and is placed in electric automobile maintenance with the proximity sensing device, when infrared sensor detected personnel near the time, loudspeaker is reported to the police, the concern of prompting maintenance person.Certainly, this alarm also can be widely used in the occasion that other forbid that personnel approach, and for example around the high voltage alive equipment, all this alarm can be installed.
Further, described power module comprises AC input cell, AC-DC conversion unit, voltage transformation unit, the accumulator that links to each other successively.Because the application scenario of this alarm can not have AC power at any time, be very necessary so increase the storage battery power supply circuit, can enlarge its scope of application.
Further, described infrared sensor is passive infrared sensor, and its model is P2288.Passive infrared sensor is that sensor itself is not launched infrared ray, is that passive reception is detected the infrared ray that object is launched, and this class sensor can only be surveyed the object with infrared emitting ability.Infrared receiver tube in the passive infrared sensor is the semiconductor devices that the infrared ray signal is become electric signal, its core component is the PN junction of a special material, compare with general-purpose diode, structurally taked large change, infrared receiver tube is for more more large-area incident raies of accepting, and it is larger that the PN junction area is done as far as possible, and electrode area reduces as far as possible, and the junction depth of PN junction is very shallow, is generally less than 1 micron.Infrared receiver diode is worked under the reverse voltage effect.
When have infrared ray according to the time, after the infrared ray photon that carries energy enters PN junction, energy is passed to bound electron on the covalent bond, make portions of electronics shake off covalent bond, thereby produce electronics---hole pair.They participate in drift motion under the reverse voltage effect, make inverse current obviously become large, and light intensity is larger, and inverse current is also larger.Infrared receiver diode is under the light irradiation of general illumination, and the electric current that produces is photocurrent.If connect load at external circuit, just obtained electric signal in the load, and this electric signal along with the variation of light respective change.
Normal conditions people knows from experience the infrared ray of radiation 10 μ m wavelength around, the utility model adopts the infrared sensor P2288 of this wave band special use, when human body infrared when shining sensor, pyroelectric effect is the radiation electric charge outwards, detect this signal by amplifying circuit, can be used as the foundation whether someone enters alarm region.
Because infrared ray is prevalent in the middle of the physical environment, and infrared sensor P2288 the infrared ray responsive to 10 μ m wavelength around, when the infrared radiation sensor of other wavelength was arranged, sensor was guaranteed that attonity the false alarm situation can not occur.
Further, described sensor assembly also comprises the amplifying circuit that links to each other with the infrared sensor output terminal, and the loudspeaker of described alarm module links to each other with the output terminal of described amplifying circuit.Amplifying circuit can amplify the signal of infrared sensor output, reduce the interference of other signals, thereby the police is warned and failed to report to false alarm reduction.
Further, described loudspeaker is the self-excitation hummer.The self-excitation hummer is direct voltage drive, does not need to utilize AC signal to drive, and only need to add suitable voltage at hummer two electrode tips, and hummer namely can sounding, reliable operation.
Electric automobile maintenance of the present utility model is long-pending little, lightweight with the proximity sensing body, can carry, and also easy to use, have good practicality.
Description of drawings
Fig. 1 is the schematic block circuit diagram that the proximity sensing device is used in electric automobile maintenance of the present utility model.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are described in further detail.
Embodiment 1:
As shown in Figure 1, the maintenance of the electric automobile of present embodiment comprises continuous sensor assembly 1 and alarm module 2 with the proximity sensing device, and is the power module 3 of sensor assembly 1 and alarm module 2 power supplies; Wherein sensor assembly 1 comprises infrared sensor 4, the amplifying circuit 5 that links to each other with infrared sensor 4 output terminals; Alarm module 2 has the self-excitation hummer 6 that the model that links to each other with the output terminal of amplifying circuit 5 is KC1206; Power module 3 comprises AC input cell 7, AC-DC conversion unit 8, voltage transformation unit 9, the accumulator 10 that links to each other successively.
Infrared sensor 4 is passive infrared sensor, and its model is P2288.
In use, the special plug-in unit or the switch place that disconnect of needing opened and is placed in electric automobile maintenance with the proximity sensing device, when infrared sensor 4 detected personnel near the time, self-excitation hummer 6 is reported to the police, the concern of prompting maintenance person.Certainly, this alarm also can be widely used in the occasion that other forbid that personnel approach, and for example around the high voltage alive equipment, all this alarm can be installed.
Claims (5)
1. the proximity sensing device is used in an electric automobile maintenance, it is characterized in that comprising continuous sensor assembly and alarm module, and is the power module of sensor assembly and alarm module power supply; Described sensor assembly comprises infrared sensor, and described alarm module has the loudspeaker that links to each other with described infrared sensor output terminal.
2. the proximity sensing device is used in electric automobile maintenance according to claim 1, it is characterized in that described power module comprises AC input cell, AC-DC conversion unit, voltage transformation unit, the accumulator that links to each other successively.
3. the proximity sensing device is used in electric automobile maintenance according to claim 1 and 2, it is characterized in that described infrared sensor is passive infrared sensor, and its model is P2288.
4. electric automobile according to claim 1 and 2 keeps in repair and uses the proximity sensing device, it is characterized in that described sensor assembly also comprises the amplifying circuit that links to each other with the infrared sensor output terminal, the loudspeaker of described alarm module links to each other with the output terminal of described amplifying circuit.
5. the proximity sensing device is used in electric automobile maintenance according to claim 1 and 2, it is characterized in that described loudspeaker is the self-excitation hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428321 CN202795646U (en) | 2012-08-28 | 2012-08-28 | Approach warning device for electric vehicle maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428321 CN202795646U (en) | 2012-08-28 | 2012-08-28 | Approach warning device for electric vehicle maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202795646U true CN202795646U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220428321 Expired - Fee Related CN202795646U (en) | 2012-08-28 | 2012-08-28 | Approach warning device for electric vehicle maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202795646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510921A (en) * | 2015-12-30 | 2016-04-20 | 北京新能源汽车股份有限公司 | Safety device for vehicle high-voltage system |
| CN109855000A (en) * | 2019-04-19 | 2019-06-07 | 青岛亿联客信息技术有限公司 | A kind of protection against electric shock lamps and lanterns |
-
2012
- 2012-08-28 CN CN 201220428321 patent/CN202795646U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510921A (en) * | 2015-12-30 | 2016-04-20 | 北京新能源汽车股份有限公司 | Safety device for vehicle high-voltage system |
| CN105510921B (en) * | 2015-12-30 | 2018-07-17 | 北京新能源汽车股份有限公司 | Safety device for vehicle high-voltage system |
| CN109855000A (en) * | 2019-04-19 | 2019-06-07 | 青岛亿联客信息技术有限公司 | A kind of protection against electric shock lamps and lanterns |
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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 |
Granted publication date: 20130313 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |