CN2574274Y - Automatic testing and power polarity switching power connecting conductor device - Google Patents
Automatic testing and power polarity switching power connecting conductor device Download PDFInfo
- Publication number
- CN2574274Y CN2574274Y CN 02252024 CN02252024U CN2574274Y CN 2574274 Y CN2574274 Y CN 2574274Y CN 02252024 CN02252024 CN 02252024 CN 02252024 U CN02252024 U CN 02252024U CN 2574274 Y CN2574274 Y CN 2574274Y
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Abstract
The utility model relates to an automatic testing and power polarity switching power connecting conductor device which is formed by that conducting wires of two pairs of electric clamps are connected with a protective circuit which is composed of a microprocessor, a set of coil driver circuits, and a double-knife double-throw relay, wherein, the input end of the microprocessor is respectively connected with the two pairs of electric clamps, the output end is used for controlling the double-knife double-throw relay through the coil driver circuits, and the double-knife double-throw relay is arranged between the two pair of electric clamps. After the polarity of a vehicle battery which is connected with the two pair of electric clamps is detected by the microprocessor, a judgment on how an electric polarity can be correctly connected is added, the switch motion of the double-knife double-throw relay is controlled according to the judgment result, and the correct connection of the electric polarities of the two pair of electric clamps can be ensured.
Description
(1) technical field
The utility model is that a kind of automatic detection and the automobile that switches electric power polarity connect electric wire installation, refer to especially a kind of when two garages are promptly transmitted electricity, can guarantee the electric power polarity of storage battery correct connect connect electric wire installation.
(2) background technology
The supply of electric power source of general automobile, the most general mode are promptly by the accumulator jar that is installed in the automobile, with required electric power and the required operating voltage of other metering device when providing car to start.Though vehicle itself provides the electric power display unit of storage battery, but still have an opportunity, cause the storage battery over-discharge can and cause power shortage because of driver's carelessness itself.
The common reason of storage battery power shortage that causes is to forget car light cuts out after the driver leaves car, go through a period of time like this after, storage battery promptly causes power shortage because of discharging for a long time; In addition, another causes the cause of power shortage to be useful life of storage battery, and storage battery is after long-term the use, because of the chemical reaction of inner raw material makes electric power reduce gradually.Yet no matter be which kind of reason causes power shortage, all bring the driver inconvenience greatly, what stand in the breach promptly is that vehicle can't start a bit.In case after this kind situation took place, its urgent settling mode was promptly used the accumulator jar of another vehicle, and automobile-usedly connect electrode lead set and the binding of self storage battery with urgent transmission ﹠ distribution electric power by one.
But the present employed electrode lead set that connects; there is no the measure of any electric power polarity protection; only be on two pairs of electricity folders, to indicate different colours; use for user's identification when operating; this kind practice is still has quite high potential hazard, in case the user judges polarity chron by accident, the electric power of two storage battery rooms the reversal connection state; very easily produce unexpected injuries such as spark, blast, so must not be careless in the operating process.So connect electrode lead set in view of present employed automobile,, be obviously to have the utmost point to treat improved necessity as a device that can allow user's safety operation because of there not being any safeguard measure.
(3) utility model content
Therefore, main purpose of the present utility model is to provide a kind of automobile that can detect and switch electric power polarity automatically to connect electric wire installation, it can detect judges whether two pairs of electric automobile storage battery polarity that connected of pressing from both sides are consistent, and according to two pairs of electric annexations of pressing from both sides of judged result switching, and guarantee that the polarity of two storage batterys is correct connections.
For achieving the above object, the major technique means that the utility model adopted are that two pairs of automobile electricity folders all are connected to a protective circuit, utilize this protective circuit detection and switch two pairs of electricity folders connection relationship each other, to guarantee that the electric power polarity that two pairs of electricity press from both sides the storage battery that is linked is to be correct connection, wherein, this protective circuit includes: a polarity detecting unit, its input are to connect this each electricity folder, in order to detect the electric power polarity of electricity folder institute connection storage battery; One switches the unit, be to be located between this two couples electricity folder, wherein this switch unit is the output that is connected to this polarity detecting unit again by a driver element, by the output signal of this polarity detecting unit, this switch unit of may command suitably moves, and then correctly switches the connection relationship of two pairs of electricity folders; One loop current detects the unit, is to be connected between this two couple electricity folder, whether constitutes a conducting loop to detect two pairs of electricity folders, and wherein to detect the unit be that output one detects signal and gives this polarity detecting unit to this loop current, has or not the electricity folder to come off on storage battery to detect; One power-supply unit provides the required operating voltage of this polarity detecting unit.
This polarity detecting unit is to be made of a microprocessor, input in this microprocessor is to be connected to two pairs of electricity folders by a buffer circuit, utilize the built-in comparison program of microprocessor can judge the polarization state that electricity presss from both sides the storage battery that is connected, and then export a suitable switch-over control signal;
This switch unit is made of a double-pole double-throw relay, and this relay possesses two groups of magnetizing coils, and by forming two switch crystal of this driver element, can determine the whether excitatory of magnetizing coil individually; One group of switching node of the indivedual controls of two magnetizing coils is with the annexation of control connection two pairs of electricity folders on these two groups of switching nodes;
This loop current detects the unit and is made up of a blocking oscillator (Blocking Oscillator), utilize vibration that formed loop current between two pairs of electricity folders controls this oscillator whether, utilize oscillator to have or not to have oscillation action and as the signal that detects of loop state, this detects signal is further to export in this microprocessor;
This power-supply unit is to form with two groups of bridge rectifiers and a Zener diode, utilizes the stabilized voltage characteristic of Zener diode, provides this microprocessor one stable direct-current working volts.
By this design, after two pairs of electricity folders connect storage battery respectively, this polarity detecting unit will be judged the polarization state of this two couples electricity folder, and export a control signal and give this driver element, and then control this switch unit and make suitable switching, be correct to guarantee that two pairs of electric power polarity between the electricity folder connect.
For further specifying the purpose of this utility model, design feature and effect, the utility model is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Fig. 2 be of the present utility model all move and make schematic diagram.
Fig. 3 is an another change action schematic diagram of the present utility model.
Fig. 4 is a detailed circuit diagram of the present utility model.
(5) embodiment
At first see also shown in Figure 1ly, be circuit block diagram of the present utility model, each electricity folder a～d of two pairs of electric folder groups 100,200 all is connected with a protective circuit 1, and wherein this two electric folder group the 100, the 200th is connected with storage battery A, B respectively, and this protective circuit 1 includes again:
One polarity detecting unit 10, its input is connected to this each electricity by a buffer circuit 20 and presss from both sides a～d.
One driver element is to form with two switch crystal 3s 1,32, and each switch crystal 3 the 1, the 32nd is connected in the output of this polarity detecting unit 10.
One switches unit 40, is made of a double-pole double-throw relay in the present embodiment, and this relay is to have two groups of magnetizing coils 41,42, each magnetizing coil the 41, the 42nd, the corresponding respectively two switch crystal 3s 1,32 that connect this driver element.In addition, two groups of output node A1, A2 of this relay, B1, B2 are after utilizing 41,42 controls of two magnetizing coils one group of switching node C1, C2 respectively, and then determine its switching state.Wherein, first group of output node A1, A2 are connected with two electricity folder C, D of the second electric folder group 200; And this switching node group C1, C2 are connected with two electricity folder A, B of the first electric folder group 100.
In addition, these two groups of output nodes itself also are staggered connection, and promptly output node A1, B2 join, and output node A2, B1 join.
One loop current detects unit 50, is to be located between the two electric folder groups 100,200, whether constitutes a complete conducting loop in order to detect two 100,200 of electric folder groups, and it is that output one detects signal and gives this polarity detecting unit 10 that this loop current detects unit 50.
One power-supply unit 60, be in order to provide this polarity detecting unit 10 required operating voltage, this power-supply unit 60 is to be connected with two electric folder groups 100,200, so after arbitrary electric folder group 100,200 was connected to storage battery A, B earlier, power-supply unit 60 is output services voltage at once.In addition, power-supply unit 60 also provides an electric current to give two magnetizing coils 4142 of this relay simultaneously.
And relevant circuit operation part of the present utility model, then as described below:
At first, seeing also following form, be the comparison truth table of this polarity detecting unit 1, is according to two pairs of electric power polarity that electric folder group 100,200 is connected, and the conducting of two switch crystal 3s 1,32 in the judgement driver element is whether, and then the excitatory state of decision magnetizing coil 41,42:
| Electricity folder a | Electricity folder b | Electricity folder c | Electricity folder d | The first switch crystal (41) | Second switch crystal (42) |
| + | - | + | - | ON | OFF |
| - | + | - | + | ON | OFF |
| + | - | - | + | OFF | ON |
| - | + | + | - | OFF | ON |
Table one: comparison truth table
At first, when two electric folder groups 100,200 one of them in advance with after storage battery A, B are connected, power-supply unit 60 is exported an operating voltage at once and is given polarity detecting unit 10, two switching node C1, the C2 of relay are still and are positioned at mid point at this moment, and do not constitute conducting with any output node A1, A2, B1, B2.
And in case two electric folder groups 100,200 all with after storage battery A, B are connected, polarity detecting unit 10 carries out determining program according to this table one at once, it can generally be divided into following two kinds of situations:
One, two storage battery A, B connect the polarity unanimity
See also shown in Figure 2, under state shown in the first two row of form, promptly electricity folder a is identical with the polarity of electricity folder c, polarity detecting unit 10 is promptly controlled 1 conducting of the first switch crystal 3 at this moment, and second switch crystal 32 is still kept and is ended, swash turn coil 41 formation conducting loops because of first this moment, so flowing through from power-supply unit 60, an exciting curent first swashs turn coil 41, so two switching node C1, C2 switch to first group of output node A1, A2 from mid point synchronously, this moment, electricity folder a was connected with electricity folder c, and electricity folder b is connected with electricity folder d, and two storage battery A, B begin to carry out power transmission and distribution.
It is inconsistent that two, two storage battery A, B connect polarity
See also shown in Figure 3ly, behind the form shown in two row under the state, promptly electricity folder a is opposite with the polarity of electricity folder c, and polarity detecting unit 10 is promptly controlled 2 conductings of second switch crystal 3 at this moment, and the first switch crystal 31 is kept and ended.Swash turn coil 42 formation conducting loops because of second this moment, so flowing through from power-supply unit 60, an exciting curent second swashs turn coil 42, magnetic strength stress by the second sharp turn coil 42, two switching node C1, C2 switch to second group of output node B1, B2 from mid point simultaneously, because of two groups of output node A1, A2, B1, B2 itself are staggered connection, so electricity folder a transfers to electricity folder d and being connected, and electricity folder b transfers to electricity folder c being connected, after this switching, two storage battery A, B are still and guarantee to connect polarity for consistent.
Correctly connect and the border of the action of transmitting electricity in two storage battery A, B, whether this loop current can to monitor the loop state of two storage battery A, B at any time normal if detecting unit 50, in case have any electricity folder on storage battery, to come off or when taking off via the user, loop current detects unit 50 and will detect signal and give this polarity detecting unit 10 because of detecting to send less than electric current, this polarity detecting unit 10 will make two switch crystal 3s 1,32 transfer to ending at once, so two switching node C1, C2 will go back to from mid point.When this moment, the user operate again as if need again, two electric folders must be clipped on the storage battery thereafter more again earlier from storage battery A, B orientation.See also shown in Figure 4ly, be a specific embodiment of the utility model detailed circuit diagram, wherein:
This polarity detecting unit 10 is to utilize a microprocessor 10 ' to constitute, and is the comparison program of built-in this table one in microprocessor 10 ', and this buffer circuit 20 that is connected in microprocessor 10 ' input mainly is to utilize four transistors 21～24 to form again.
This power-supply unit 60, be to constitute jointly with two groups of bridge rectifiers 61,62 and a Zener diode 63, these two groups of bridge rectifiers the 61, the 62nd are connected with two storage battery A, B respectively, voltage after rectification is to export this Zener diode 63 to, utilize Zener diode 63 to have the characteristic of voltage stabilizing, can provide stable direct-current working volts to give microprocessor 10 '.
This loop current detects unit 50 and then constitutes with a blocking oscillator, and this blocking oscillator includes:
One induction coil group 51, its first siding ring are to be serially connected with between the two electric folder groups 100,200, and its second siding ring then is connected to the emitter-base bandgap grading of the first transistor Q1, and the base terminal of this first transistor Q1 then is connected to the negative terminal of Zener diode 63 by a resistance R 4;
One divider resistance string is to be made of three resistor R 1, R2, R3 that are serially connected with between these Zener diode 63 negative terminals and the ground connection, and wherein the serial connection point F of resistance R 1, R2 is connected with the collection utmost point of this first transistor Q1;
One transistor seconds Q2, its base terminal are the serial connection point G that is connected to this resistance R 2, R3, and its emitter-base bandgap grading end is a ground connection, and collector terminal then is connected to an input of microprocessor 10 ' and the negative terminal of this Zener diode 63.
The action of relevant this blocking oscillator is as described below:
When there is no, two storage battery A, B carry out power transmission and distribution when operation, first siding ring in induction coil group 51 is that no current passes through (being I=O), this moment, oscillating circuit normally vibrated, and the collection utmost point of the first transistor Q1 has electric current to flow through, this moment, node F was the accurate position of low-voltage, transistor seconds Q2 ends, so microprocessor 10 ' is the signal that receives the accurate position of a high voltage.
And when two storage battery A, B begin to carry out the power transmission and distribution operation, on first siding ring, there is electric current to flow through, this moment induction coil group 51 core sataration, so vibration stops, cause the voltage quasi position of node F to improve, related make transistor seconds Q1 conducting, so microprocessor 10 ' is the signal that receives the accurate position of a low-voltage.This microprocessor 10 ' is according to received voltage quasi position, just can judge the loop conducting state of present two storage battery rooms.
In sum, automobile of the present utility model connects electric wire installation, its two electric folder is organized when operation, the user need not painstakingly to distinguish the polar configurations that connects storage battery, itself can detect storage battery polarity automatically and suitably switches, and makes to protect polarity between two storage batterys forever and correctly connect, like this, because of the unexpected injury that the polarity misconnection is caused can be avoided, compared to the present general mode that adopts, effect greatly improves.
Certainly, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claims variation, the modification of the above embodiment.
Claims (8)
1. an automobile that detects and switch electric power polarity automatically connects electric wire installation, includes:
Two pairs of electricity folders can be connected to two storage batterys respectively, and each electricity folder is connected to a protective circuit, it is characterized in that this protective circuit includes:
One polarity detecting unit, its input are to connect this each electricity folder, in order to detect the electric power polarity of electricity folder institute connection storage battery;
One switches the unit, be to be located between this two couples electricity folder, wherein this switch unit is the output that is connected to this polarity detecting unit again by a driver element, by the output signal of this polarity detecting unit, may command should be switched single suitably action, and then correctly switched the connection relationship of two pairs of electricity folders;
One loop current detects the unit, is to be connected between this two couple electricity folder, whether constitutes a conducting loop to detect two pairs of electricity folders, and wherein to detect the unit be that output one detects signal and gives this polarity detecting unit to this loop current, has or not the electricity folder to remove on storage battery to detect; And
One power-supply unit provides the required operating voltage of this polarity detecting unit.
2. the automobile of automatic detection as claimed in claim 1 and switching electric power polarity connects electric wire installation, it is characterized in that, this polarity detecting unit is to constitute with a microprocessor, input in this microprocessor is to be connected to each electricity folder by a buffer circuit, be to set up a comparison program in this microprocessor, judging the polarization state of the storage battery that electricity folder connected, and then export a suitable switch-over control signal and give this driver element.
3. the automobile of automatic detection as claimed in claim 1 and switching electric power polarity connects electric wire installation, it is characterized in that, this switch unit is made of a double-pole double-throw relay, this relay possesses two groups of magnetizing coils, and, can determine the whether excitatory of each magnetizing coil individually by forming this driver element; Two magnetizing coils are one group of switching nodes of indivedual controls, with the annexation of control connection two pairs of electricity folders on these two groups of switching nodes.
4. the automobile of automatic detection as claimed in claim 1 and switching electric power polarity connects electric wire installation, it is characterized in that, this loop current detects the unit and is made up of a blocking oscillator, utilize vibration that formed loop current between two pairs of electricity folders controls this oscillator whether, utilize oscillator to have or not to have oscillation action and as the signal that detects of loop state, this detects signal is further to export in this polarity detecting unit.
5. the automobile of automatic detection as claimed in claim 1 and switching electric power polarity connects electric wire installation, it is characterized in that, this power-supply unit is to form with two groups of bridge rectifiers and a Zener diode, two bridge rectifiers are to be connected with two storage batterys respectively, this Zener diode then is connected to the output of two bridge rectifiers, utilizes the stabilized voltage characteristic of Zener diode to provide this polarity detecting unit one stable direct-current working volts.
6. the automobile of automatic detection as claimed in claim 3 and switching electric power polarity connects electric wire installation, it is characterized in that this driver element is made up of two switch crystal, and two switch crystal are two magnetizing coils of controlling this double-pole double-throw relay respectively.
7. the automobile as claim 3 or 6 described automatic detections and switching electric power polarity connects electric wire installation, it is characterized in that this double-pole double-throw relay is to include:
This two magnetizing coil;
Two switching nodes are to be connected to the electric folder of a pair of electric each of pressing from both sides portion respectively;
The first output node group is to be connected to respectively in addition the electric folder of each of electricity folder portion;
The second output node group is to be staggered connection with this first output node group.
8. the automobile of automatic detection as claimed in claim 4 and switching electric power polarity connects electric wire installation, it is characterized in that this blocking oscillator includes:
One induction coil group, its first siding ring are to be serially connected with between two pairs of electricity folders, and its second siding ring then is connected to the emitter-base bandgap grading of the first transistor, and the base terminal of this first transistor then is connected to power-supply unit by a resistance;
One divider resistance string is to be made of three resistor R 1, R2, R3 that are serially connected with between this power-supply unit negative terminal and the ground connection, and wherein the serial connection point F of resistance R 1, R2 is connected with the collection utmost point of this first transistor;
One transistor seconds, its base terminal are the serial connection point G that is connected to this resistance R 2, R3, and its emitter-base bandgap grading end is a ground connection, and collector terminal then is connected to an input and this power-supply unit of this polarity detecting unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02252024 CN2574274Y (en) | 2002-08-22 | 2002-08-22 | Automatic testing and power polarity switching power connecting conductor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02252024 CN2574274Y (en) | 2002-08-22 | 2002-08-22 | Automatic testing and power polarity switching power connecting conductor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574274Y true CN2574274Y (en) | 2003-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02252024 Expired - Fee Related CN2574274Y (en) | 2002-08-22 | 2002-08-22 | Automatic testing and power polarity switching power connecting conductor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574274Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340044C (en) * | 2002-08-22 | 2007-09-26 | 刘宪章 | Automobile electricity-connecting conductor device capable of making automatic detection and switching power polarity |
| CN100449906C (en) * | 2004-04-21 | 2009-01-07 | 陈国华 | Circuit arrangement capable of distinguishing polarity automatically and converting |
| CN102820789A (en) * | 2012-08-20 | 2012-12-12 | 美的集团有限公司 | Alternating current zero and live wire identification conversion circuit |
| CN103457466A (en) * | 2013-09-16 | 2013-12-18 | 天津市畅悦电子科技有限公司 | Circuit capable of automatically transforming polarity |
| CN106537713A (en) * | 2014-07-02 | 2017-03-22 | 戴尔菲技术公司 | Apparatus to provide reverse polarity protection |
| CN113725845A (en) * | 2020-05-25 | 2021-11-30 | 南宁富桂精密工业有限公司 | DC power supply circuit |
-
2002
- 2002-08-22 CN CN 02252024 patent/CN2574274Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340044C (en) * | 2002-08-22 | 2007-09-26 | 刘宪章 | Automobile electricity-connecting conductor device capable of making automatic detection and switching power polarity |
| CN100449906C (en) * | 2004-04-21 | 2009-01-07 | 陈国华 | Circuit arrangement capable of distinguishing polarity automatically and converting |
| CN102820789A (en) * | 2012-08-20 | 2012-12-12 | 美的集团有限公司 | Alternating current zero and live wire identification conversion circuit |
| CN102820789B (en) * | 2012-08-20 | 2014-12-17 | 美的集团股份有限公司 | Alternating-current zero line and firing line identification and conversion circuit |
| CN103457466A (en) * | 2013-09-16 | 2013-12-18 | 天津市畅悦电子科技有限公司 | Circuit capable of automatically transforming polarity |
| CN103457466B (en) * | 2013-09-16 | 2015-12-23 | 天津市畅悦电子科技有限公司 | A kind of auto-changing polar circuit |
| CN106537713A (en) * | 2014-07-02 | 2017-03-22 | 戴尔菲技术公司 | Apparatus to provide reverse polarity protection |
| CN106537713B (en) * | 2014-07-02 | 2019-03-01 | 戴尔菲技术公司 | The device of reverse polarity protection is provided |
| CN113725845A (en) * | 2020-05-25 | 2021-11-30 | 南宁富桂精密工业有限公司 | DC power supply circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030917 Termination date: 20090922 |