CN104485652A - Reverse connection prevention and surging prevention device for vehicle terminal power supply - Google Patents
Reverse connection prevention and surging prevention device for vehicle terminal power supply Download PDFInfo
- Publication number
- CN104485652A CN104485652A CN201410802666.9A CN201410802666A CN104485652A CN 104485652 A CN104485652 A CN 104485652A CN 201410802666 A CN201410802666 A CN 201410802666A CN 104485652 A CN104485652 A CN 104485652A
- Authority
- CN
- China
- Prior art keywords
- vehicle power
- power supply
- terminal
- cathode contact
- car
- 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.)
- Pending
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A reverse connection prevention and surging prevention device for a vehicle terminal power supply comprises a vehicle terminal power supply positive pole connecting point, a vehicle terminal power supply negative pole connecting point, a terminal positive pole contact, a terminal negative pole contact, a self-recovered safety resistor and two TVS (transient voltage suppressor) diodes, wherein the two TVS diodes are connected in parallel, one end of each of the two TVS diodes connected in parallel is connected between the self-recovered safety resistor and the terminal positive pole contact, the other end is connected between the vehicle terminal power supply negative pole connecting point and the terminal negative pole contact, and the other end of the self-recovered safety resistor is connected to the vehicle terminal power supply positive pole connecting point. According to the reverse connection prevention and surging prevention device, the two TVS diodes are adopted to be connected at an inlet of the terminal power supply in parallel, so that positive and negative pole reverse connection protection can be realized, impulse interference can be inhibited, a circuit is more simplified, and the cost and space of a PCB (printed circuit board) are saved.
Description
Technical field
The present invention relates to a kind of car-mounted terminal applied technical field, particularly relate to and a kind ofly can realize anti-reverse and car-mounted terminal power supply reverse connection protection that is Anti-surging simultaneously and to hold concurrently Anti-surging device.
Background technology
In prior art, car-mounted terminal, when maintain and replace, very likely connects the electrode line of terminal and negative line instead, causes Damage by Short Circuit equipment.Car-mounted terminal adopts storage battery to power, and standard is at 12V or 24V.The voltage of vehicular power-bottle is not stable, can be subject to vehicle ignition, generator charging, car electrics start impact and introduce pulse voltage.Therefore, in the Power supply design of car-mounted terminal, generally can consider to prevent from connecing anti-and pulse inhibit feature.In the past, realizing these functions generally adopts two parts circuit to go process.That is: adopt the power rectifier diode of IN5401 series as anti-reverse protection; The interference of filter circuit paired pulses is adopted to suppress.Separately design cost is like this high, takies PCB space.
Summary of the invention
The object of the invention is to the problem overcoming above-mentioned prior art, provide a kind of structure simple, and anti-reverse and car-mounted terminal power supply reverse connection protection that is Anti-surging can be realized simultaneously to hold concurrently Anti-surging device.
The object of the invention is to be achieved through the following technical solutions:
A kind of car-mounted terminal power supply reverse connection protection is held concurrently Anti-surging device, comprise vehicle power positive pole tie point, vehicle power negative pole tie point, terminal cathode contact, terminal cathode contact, self-recoverage insurance resistance and two TVS pipe, described two TVS pipe are connected in parallel, and two TVS pipe one end after parallel connection are connected between self-recoverage insurance resistance and terminal cathode contact, the other end is connected between vehicle power negative pole tie point and terminal cathode contact, and the described self-recoverage insurance resistance other end connects described vehicle power positive pole tie point.
Further, described TVS pipe is paster TVS pipe.
Further, described TVS pipe is SMCJ 24AC type diode.
Further, also comprise car-mounted terminal, described car-mounted terminal is connected between terminal cathode contact and terminal cathode contact.
Further, also comprise housing, described housing is provided with vehicle power anode interface, vehicle power negative pole interface, terminal cathode contact interface and terminal cathode contact interface, described vehicle power positive pole tie point is placed in described vehicle power anode interface, described vehicle power negative pole tie point is arranged in described vehicle power negative pole interface, described terminal cathode contact is placed in described terminal cathode contact interface, described terminal cathode contact is placed in described terminal cathode contact interface, and described two TVS pipe are placed in the cavity in housing.
Further, in described cavity, be provided with TVS pipe fixed mechanism, for fixing described TVS pipe.
Further, described vehicle power anode interface and vehicle power negative pole interface are set up in parallel, and it is mounted with the joint in order to be communicated with vehicle power respectively, and described joint is electrically connected with vehicle power positive pole tie point and vehicle power negative pole tie point respectively.
Further, the maximum electric current that bears of described self-recoverage insurance resistance is 10A.
Car-mounted terminal power supply reverse connection protection of the present invention is held concurrently Anti-surging device, adopts two TVS pipe to be connected in parallel on terminal supplying power porch, both can realize both positive and negative polarity and connect anti-protection, again can suppressor pulse interference.Circuit is more simplified, and has saved cost and PCB space.
Accompanying drawing explanation
Fig. 1, Fig. 2 are that car-mounted terminal power supply reverse connection protection of the present invention is held concurrently an embodiment schematic diagram of Anti-surging device.
Embodiment
According to drawings and embodiments the present invention is described in further detail below.
As Fig. 1, shown in Fig. 2, car-mounted terminal power supply reverse connection protection described in the embodiment of the present invention is held concurrently Anti-surging device, comprise vehicle power positive pole tie point, vehicle power negative pole tie point, terminal cathode contact, terminal cathode contact, self-recoverage insurance resistance and two TVS pipe, described two TVS pipe are connected in parallel, and two TVS pipe one end after parallel connection are connected between self-recoverage insurance resistance and terminal cathode contact, the other end is connected between vehicle power negative pole tie point and terminal cathode contact, the described self-recoverage insurance resistance other end connects described vehicle power positive pole tie point.
In above-described embodiment, utilize TVS pipe characteristic inherently: during forward conduction, electric current big current can be born and can not damage; During reverse-conducting, Pliers position voltage in normal voltage range, thus inhibits impulse disturbances.Particularly; both positive and negative polarity as shown in Figure 1 meets anti-protection philosophy figure; the positive and negative power supply line external when mobile terminal connects inverse time, D1, D2 forward conduction; because On current is larger; every TVS diode is slightly generated heat, and can bear at least more than 10A and not damaged, thus fusing self-recoverage insurance resistance F1; the maximum current that self-recoverage insurance resistance F1 can bear is about 10A, thus the effect of polar circuit after playing fuse protection.Anti-surging pulse as shown in Figure 2 suppresses shown in schematic diagram, when high-voltage pulse is imported into by power line, due to TVS diode D1, the reverse turn-on voltages of D2 is at 24V, after institute, pole tension is by Pliers position in 24V, belongs to normal working voltage scope, thus inhibits impulse disturbances.
Preferably, the present invention the car-mounted terminal power supply reverse connection protection that provides of an embodiment to hold concurrently Anti-surging device, described TVS pipe is paster TVS pipe.Be specifically as follows SMCJ 24AC type diode, its power can reach 400W, and during forward conduction, can bear electric current about 30A can not damage; During reverse-conducting, Pliers position voltage 24V.
As a kind of preferred embodiment of the present invention, the present invention also comprises car-mounted terminal, and described car-mounted terminal is connected between terminal cathode contact and terminal cathode contact.Preferably, car-mounted terminal power supply reverse connection protection of the present invention Anti-surging device of holding concurrently also comprises housing, described housing is provided with vehicle power anode interface, vehicle power negative pole interface, terminal cathode contact interface and terminal cathode contact interface, described vehicle power positive pole tie point is placed in described vehicle power anode interface, described vehicle power negative pole tie point is arranged in described vehicle power negative pole interface, described terminal cathode contact is placed in described terminal cathode contact interface, described terminal cathode contact is placed in described terminal cathode contact interface, described two TVS pipe are placed in the cavity in housing.TVS pipe fixed mechanism is provided with, for fixing described TVS pipe in described cavity.Described vehicle power anode interface and vehicle power negative pole interface are set up in parallel, and it is mounted with the joint in order to be communicated with vehicle power respectively, and described joint is electrically connected with vehicle power positive pole tie point and vehicle power negative pole tie point respectively.
In above-described embodiment, the setting of housing and TVS pipe fixed mechanism etc., can the better operation of proterctive equipment, avoids that vibrations occur in vehicle operation and waits the normal table of the equipment that affects to run, further ensure the use safety of car-mounted terminal.
The foregoing is only explanation embodiments of the present invention; be not limited to the present invention, for a person skilled in the art, within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a car-mounted terminal power supply reverse connection protection is held concurrently Anti-surging device, it is characterized in that, comprise vehicle power positive pole tie point, vehicle power negative pole tie point, terminal cathode contact, terminal cathode contact, self-recoverage insurance resistance and two TVS pipe, described two TVS pipe are connected in parallel, and two TVS pipe one end after parallel connection are connected between self-recoverage insurance resistance and terminal cathode contact, the other end is connected between vehicle power negative pole tie point and terminal cathode contact, and the described self-recoverage insurance resistance other end connects described vehicle power positive pole tie point.
2. a kind of car-mounted terminal power supply reverse connection protection according to claim 1 is held concurrently Anti-surging device, and it is characterized in that, described TVS pipe is paster TVS pipe.
3. a kind of car-mounted terminal power supply reverse connection protection according to claim 1 is held concurrently Anti-surging device, and it is characterized in that, described TVS pipe is SMCJ 24AC type diode.
4. a kind of car-mounted terminal power supply reverse connection protection according to claim 1 is held concurrently Anti-surging device, and it is characterized in that, also comprise car-mounted terminal, described car-mounted terminal is connected between terminal cathode contact and terminal cathode contact.
5. a kind of car-mounted terminal power supply reverse connection protection according to claim 1 is held concurrently Anti-surging device, it is characterized in that, also comprise housing, described housing is provided with vehicle power anode interface, vehicle power negative pole interface, terminal cathode contact interface and terminal cathode contact interface, described vehicle power positive pole tie point is placed in described vehicle power anode interface, described vehicle power negative pole tie point is arranged in described vehicle power negative pole interface, described terminal cathode contact is placed in described terminal cathode contact interface, described terminal cathode contact is placed in described terminal cathode contact interface, described two TVS pipe are placed in the cavity in housing.
6. a kind of car-mounted terminal power supply reverse connection protection according to claim 5 is held concurrently Anti-surging device, it is characterized in that, is provided with TVS pipe fixed mechanism in described cavity, for fixing described TVS pipe.
7. a kind of car-mounted terminal power supply reverse connection protection according to claim 5 is held concurrently Anti-surging device, it is characterized in that, described vehicle power anode interface and vehicle power negative pole interface are set up in parallel, and the joint it is mounted with respectively in order to be communicated with vehicle power, described joint is electrically connected with vehicle power positive pole tie point and vehicle power negative pole tie point respectively.
8. a kind of car-mounted terminal power supply reverse connection protection according to claim 1 is held concurrently Anti-surging device, it is characterized in that, the maximum electric current that bears of described self-recoverage insurance resistance is 10A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802666.9A CN104485652A (en) | 2014-12-18 | 2014-12-18 | Reverse connection prevention and surging prevention device for vehicle terminal power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802666.9A CN104485652A (en) | 2014-12-18 | 2014-12-18 | Reverse connection prevention and surging prevention device for vehicle terminal power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104485652A true CN104485652A (en) | 2015-04-01 |
Family
ID=52760173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410802666.9A Pending CN104485652A (en) | 2014-12-18 | 2014-12-18 | Reverse connection prevention and surging prevention device for vehicle terminal power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104485652A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591378A (en) * | 2015-09-21 | 2016-05-18 | 中石化石油工程技术服务有限公司 | Seismic data acquisition system power supply polarity and overload protector |
| CN106208247A (en) * | 2016-08-30 | 2016-12-07 | 合肥博雷电气有限公司 | A kind of car-mounted terminal power supply reverse connection protection is held concurrently Anti-surging device |
| CN107070261A (en) * | 2016-11-28 | 2017-08-18 | 中核核电运行管理有限公司 | The high-performance electric source module that nuclear power station reactor core Nuclear measurement system is used |
| CN110571892A (en) * | 2019-10-17 | 2019-12-13 | 合肥星空物联信息科技有限公司 | Charging reverse connection electronic equipment restoration circuit |
| CN116908599A (en) * | 2023-09-12 | 2023-10-20 | 中汽研新能源汽车检验中心(天津)有限公司 | Surge test monitoring system, method, equipment and medium for automobile alternating-current charging port |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746756A (en) * | 1993-07-29 | 1995-02-14 | Kenwood Corp | Reverse connection protection circuit of dc power source |
| CN101465540A (en) * | 2007-12-18 | 2009-06-24 | 华晶科技股份有限公司 | Protection circuit for automobile power supply |
| CN201853463U (en) * | 2010-09-25 | 2011-06-01 | 惠州泰科立集团股份有限公司 | Power supply device of LCM testing system |
| CN202840463U (en) * | 2012-05-31 | 2013-03-27 | 上海四通仪表股份有限公司 | Automobile instrument power supply protection circuit |
-
2014
- 2014-12-18 CN CN201410802666.9A patent/CN104485652A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746756A (en) * | 1993-07-29 | 1995-02-14 | Kenwood Corp | Reverse connection protection circuit of dc power source |
| CN101465540A (en) * | 2007-12-18 | 2009-06-24 | 华晶科技股份有限公司 | Protection circuit for automobile power supply |
| CN201853463U (en) * | 2010-09-25 | 2011-06-01 | 惠州泰科立集团股份有限公司 | Power supply device of LCM testing system |
| CN202840463U (en) * | 2012-05-31 | 2013-03-27 | 上海四通仪表股份有限公司 | Automobile instrument power supply protection circuit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591378A (en) * | 2015-09-21 | 2016-05-18 | 中石化石油工程技术服务有限公司 | Seismic data acquisition system power supply polarity and overload protector |
| CN106208247A (en) * | 2016-08-30 | 2016-12-07 | 合肥博雷电气有限公司 | A kind of car-mounted terminal power supply reverse connection protection is held concurrently Anti-surging device |
| CN107070261A (en) * | 2016-11-28 | 2017-08-18 | 中核核电运行管理有限公司 | The high-performance electric source module that nuclear power station reactor core Nuclear measurement system is used |
| CN110571892A (en) * | 2019-10-17 | 2019-12-13 | 合肥星空物联信息科技有限公司 | Charging reverse connection electronic equipment restoration circuit |
| CN110571892B (en) * | 2019-10-17 | 2020-11-06 | 合肥星空物联信息科技有限公司 | Charging reverse connection electronic equipment restoration circuit |
| CN116908599A (en) * | 2023-09-12 | 2023-10-20 | 中汽研新能源汽车检验中心(天津)有限公司 | Surge test monitoring system, method, equipment and medium for automobile alternating-current charging port |
| CN116908599B (en) * | 2023-09-12 | 2023-12-01 | 中汽研新能源汽车检验中心(天津)有限公司 | Surge test monitoring system, method, equipment and medium for automobile alternating-current charging port |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104485652A (en) | Reverse connection prevention and surging prevention device for vehicle terminal power supply | |
| US10116156B2 (en) | Hybrid battery | |
| CN205791590U (en) | Battery management system power supply circuits | |
| CN103346553B (en) | Anti-reverse and the anti-relay coil short-circuit control circuit of a kind of electronic controller | |
| CN101465540A (en) | Protection circuit for automobile power supply | |
| CN103956721A (en) | Battery explosion-proof circuit and battery charging circuit | |
| CN103807077B (en) | Starting circuit for vehicle | |
| CN205304275U (en) | Take power supply unit in return circuit of discharging | |
| CN205429721U (en) | Vehicle control unit prevents transposition and prevents surge and prevent protection circuit that overflows | |
| CN204314464U (en) | Peculiar to vessel, Vehicular comprehensive Beidou satellite navigation Integrated Receiver | |
| CN104410059A (en) | Discharge gap arc extinguishing method of intrinsically safe inductive circuit | |
| CN212875662U (en) | Power protection circuit and power | |
| CN103682488A (en) | Cylindrical lithium battery with protective function | |
| CN203853658U (en) | Output short-circuit protection circuit of welding machine | |
| CN202703296U (en) | Electric vehicle emergency stop switch connection structure | |
| CN202737450U (en) | Over-discharge protector of storage battery | |
| CN206922644U (en) | A kind of anti-firing circuit of Switching Power Supply and Switching Power Supply | |
| CN109599909B (en) | Short-circuit protection system is prevented to emergency power supply | |
| CN203135708U (en) | Double-channel high-frequency power absorbing network | |
| CN204651922U (en) | A kind of electric car power supply inputs anti-rush of current circuit | |
| CN204203306U (en) | Single group storage battery volume test protective device | |
| CN204316137U (en) | A kind of vehicle-mounted double-H groove weld SB charger | |
| CN212412755U (en) | Take surge protection circuit's rifle and electric automobile battery charging outfit of charging | |
| CN203840305U (en) | Solid-state switch of parallel discharge | |
| CN202663603U (en) | Pre-ignition circuit of pumping lamp of laser equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150401 |