CN202602325U - Electric vehicle charger - Google Patents
Electric vehicle charger Download PDFInfo
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- CN202602325U CN202602325U CN 201220204904 CN201220204904U CN202602325U CN 202602325 U CN202602325 U CN 202602325U CN 201220204904 CN201220204904 CN 201220204904 CN 201220204904 U CN201220204904 U CN 201220204904U CN 202602325 U CN202602325 U CN 202602325U
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Abstract
The utility model relates to an electric vehicle charger. The problem that the conventional charger cannot display the charging capacity progress of the storage battery and cannot meet the user requirements is solved. The charger comprises a charging circuit, wherein a sampling circuit is connected to the output end of the charging circuit; a sampling output end of the sampling circuit is connected to a comparison circuit; and the output end of the comparison circuit is connected with an electric quantity display circuit. The electric vehicle charger has the advantages that the charging voltage is sampled, the charging progress of the storage battery is detected and is displayed by a light-emitting diode (LED) lamp, so that a user can directly know the charge progress of the storage battery and the required time for full charge, and the user requirements are met.
Description
Technical field
The utility model relates to a kind of charger, relates in particular to a kind of electric car charger that can show the charge capacity progress.
Background technology
The electric car charger of seeing in the market all is to adopt traffic lights to show two states; Red light representes that charger charges, and green light representes that charging finishes, and the defective of this charger is; The user can't see the accumulator electric-quantity progress in charging process; Do not know battery what of charge volume, how long be full of also needs, and can not satisfy user's demand.
Like notification number is CN2276221Y; Name is called the Chinese utility model patent of condenser type charger; Its structure is for comprising charging circuit and charging control circuit two parts; Charging circuit is made up of main capacitance C, rectification circuit and charging demonstration LED 1, having in the charging control circuit to stop charging demonstration LED 2.When charging the battery, diode (LED) 1 glows, and just battery is in normal charging condition, and when battery is full of, green LED LED2 is bright, and just battery is full of.Just there is above-mentioned shortcoming in this patent, and charger can't see the accumulator electric-quantity progress in charging process, does not know battery what of charge volume, and how long be full of also needs.
Summary of the invention
The utility model has mainly solved existing charger can not show charge in batteries electric weight progress, and the problem that can not meet consumers' demand provides a kind of electric car charger that can show the charge capacity progress.
The utility model solves the technical scheme that its technical problem adopted: a kind of charger that shows the charge capacity progress; Comprise charging circuit; On the charging circuit output, be connected with sample circuit; The sampling output of sample circuit is connected on the comparison circuit, and the comparison circuit output is connected with the electric weight display circuit.Sample circuit is used for the charger charging voltage is taken a sample, and sampling voltage is sent to comparison circuit; Comparison circuit is used for each sampling voltage and reference voltage are compared; Here to be charged to 1/3rd, 2/3rds and sampling voltage when being full of compare; If when being charged to 1/3rd, 2/3rds or when being full of; Comparison circuit transmits a signal to the electric weight display circuit, lights lamp by the circuit display circuit and representes.Whether the utility model makes charger function more powerful, not only can show can also to show the charger charge capacity in charging, make the user can be more direct the electrolytic charger state, satisfy user's demand.
As a kind of preferred version; Said sample circuit comprises resistance R 6, resistance R 7, resistance R 8 and the resistance R 9 that is connected between charging circuit output phase line and the ground wire; Resistance R 6, resistance R 7, resistance R 8 and resistance R 9 are in series successively; Resistance R 6 one ends connect the charging circuit phase line, and resistance R 9 connects the charging circuit ground wire.Four resistance of this sample circuit constitute a voltage divider, and between resistance R 6 and the resistance R 7, between resistance R 7 and the resistance R 8, constitute sampling point respectively between resistance R 8 and the resistance R 9, sampling point is connected respectively on the sampling end of comparison circuit.
As a kind of preferred version; Said comparison circuit comprises first comparator and controller, includes second comparator in the controller, and said first comparator comprises the first sampling end, first reference edge, first output, the second sampling end, second reference edge and second output; Second comparator comprises the 3rd sampling end, the 3rd reference edge and the 3rd output; Controller includes the 4th output, and the first sampling end is connected between resistance R 8 and the resistance R 9, and the second sampling end is connected between resistance R 7 and the resistance R 8; The 3rd sampling end is connected between resistance R 6 and the resistance R 7; Charger also comprises voltage reference circuit, and first reference edge, second reference edge and the 3rd reference edge are connected on the voltage reference circuit, and first output, second output, the 3rd output and the 4th output are connected respectively on the electric weight display circuit.First comparator and second comparator compare the voltage of sampling point respectively, and send signal according to comparative result and give the electric weight display circuit.Here first comparator and second comparator can adopt the LM358 chip.Controller can detect charger and whether begin charging, if charger begins charging, then sends high level signal by the 4th output.
As a kind of preferred version; Said electric weight display circuit comprises Light-Emitting Diode D1, Light-Emitting Diode D2, Light-Emitting Diode D3 and Light-Emitting Diode D4; Said Light-Emitting Diode D1 positive pole is connected to the 4th output, and Light-Emitting Diode D2 positive pole is connected to first output through resistance R 3, and light-emitting diode D3 positive pole is connected to second output through resistance R 2; Light-emitting diode D4 positive pole is connected to the 3rd output, and the negative pole of said light-emitting diode D1, D2, D3, D4 is ground connection respectively.Here light-emitting diode D1 representes power supply status; When beginning to charge; Light-emitting diode D1 lights; Light-emitting diode D2, D3, D4 represent respectively 1/3rd, 2/3rds with the electric weight that is full of, when being charged to 1/3rd, 2/3rds during with the electric weight that is full of, Light-Emitting Diode D2, D3, D4 light respectively successively.
As a kind of preferred version; Said voltage reference circuit comprises resistance R 1 and a reference source; Said resistance R 1 one ends connect power supply; Resistance R 1 other end connects the negative pole of a reference source, the plus earth of stream a reference source, and said first reference edge, second reference edge and the 3rd reference edge are connected to the negative pole of a reference source.A reference source is 2.5V a reference source, and a reference source adopts TL431, and voltage reference circuit makes that the voltage of output accurately is 2.5V.
The utility model has the advantages that: through the sampling charging voltage, detect the charge in batteries progress, and show with the LED lamp, make the user can recognize intuitively how many storage batterys charges, how long be full of also needs, and has satisfied user's demand.
Description of drawings
Fig. 1 is a kind of structural frames view of the utility model;
Fig. 2 is a kind of electrical block diagram of the utility model.
The 1-sample circuit 2-comparison circuit 21-first comparator 22-second comparator 3-electric weight display circuit 4-first sampling end 5-first reference edge 6-first output 7-second sampling end 8-second reference edge 9-second output 10-the 3rd sampling end 11-the 3rd reference edge 12-the 3rd output 13-the 4th output 14-voltage reference circuit 15-controller.
Embodiment
Below through embodiment, and combine accompanying drawing, the technical scheme of the utility model is further described.
Embodiment:
A kind of electric car charger of present embodiment; As depicted in figs. 1 and 2; This charger includes charging circuit, and charger has the circuit that can show the charger charge capacity, and this circuit is made up of sample circuit 1, comparison circuit 2, electric weight display circuit 3 and voltage reference circuit 14.Sample circuit is connected between the output phase line and ground wire of charging circuit, and this sample circuit is in series by resistance R 6, resistance R 7, resistance R 8 and resistance R 9 successively, and resistance R 6 one ends connect the charging circuit phase line, and resistance R 9 connects the charging circuit ground wire.Between resistance R 6 and the resistance R 7, between resistance R 7 and the resistance R 8, constitute sampling point respectively between resistance R 8 and the resistance R 9.Comparison circuit 2 comprises first comparator 21 and controller 15, includes 22, two comparators of second comparator in the controller and adopts the LM358 chip.This first comparator includes the first sampling end, 4, first reference edge 5, first output 6, second sampling end 7, second reference edge 8 and second output 9; Second comparator comprises the 3rd sampling end the 10, the 3rd reference edge 11 and the 3rd output 12, and controller includes the 4th output 13.This first sampling end is connected between resistance R 8 and the resistance R 9; The second sampling end is connected between resistance R 7 and the resistance R 8; The 3rd sampling end is connected between resistance R 6 and the resistance R 7; First reference edge, second reference edge and the 3rd reference edge are connected respectively on the voltage reference circuit 14, and first output, second output, the 3rd output and the 4th output are connected respectively on the electric weight display circuit 3.This voltage reference circuit comprises resistance R 1 and a reference source; Resistance R 1 one ends connect power supply; Resistance R 1 other end connects the negative pole of a reference source, the plus earth of a reference source, and this first reference edge 5, second reference edge 8 and the 3rd reference edge 11 are connected to the negative pole of a reference source.This electric weight display circuit comprises Light-Emitting Diode D1, Light-Emitting Diode D2, Light-Emitting Diode D3 and Light-Emitting Diode D4; Light-Emitting Diode D1 positive pole is connected to the 4th output 13; Light-Emitting Diode D2 positive pole is connected to first output 6 through resistance R 3; Light-emitting diode D3 positive pole is connected to second output 9 through resistance R 2, and light-emitting diode D4 positive pole is connected to the 3rd output 12, and the negative pole of light-emitting diode D1, D2, D3, D4 is ground connection respectively.
The present embodiment charger is when work, and light-emitting diode D1 lights, and charger begins charging.Three of comparison circuit sampling ends are sampled to charging voltage in real time, and when the electric weight that is charged to 1/3rd, the sampling voltage of the first sampling end is greater than the voltage of first reference edge, first output output high level then, and then light-emitting diode D2 lights; When the electric weight that is charged to 2/3rds, the sampling voltage of the second sampling end is greater than the voltage of second reference edge, second output output high level then, and then light-emitting diode D3 lights; When charging was full, the sampling voltage of the 3rd sampling end was greater than the voltage of the 3rd reference edge, and then the 3rd output is exported high level, and light-emitting diode D4 lights, and this moment, light-emitting diode was all lighted.The user just can get information about the charger charge condition in the charger charging process like this, has satisfied user's request.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as sample circuit, comparison circuit, electric weight display circuit, first comparator, second comparator morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (5)
1. electric car charger; Comprise charging circuit; It is characterized in that: on the charging circuit output, be connected with sample circuit (1), the sampling output of sample circuit is connected on the comparison circuit (2), and the comparison circuit output is connected with electric weight display circuit (3).
2. a kind of charger that shows the charge capacity progress according to claim 1; It is characterized in that said sample circuit (1) comprises resistance R 6, resistance R 7, resistance R 8 and the resistance R 9 that is connected between charging circuit output phase line and the ground wire; Resistance R 6, resistance R 7, resistance R 8 and resistance R 9 are in series successively; Resistance R 6 one ends connect the charging circuit phase line, and resistance R 9 connects the charging circuit ground wire.
3. a kind of electric car charger according to claim 2; It is characterized in that said comparison circuit (2) comprises first comparator (21) and controller (15); Include second comparator (22) in the controller; Said first comparator comprises first sampling end (4), first reference edge (5), first output (6), second sampling end (7), second reference edge (8) and second output (9); Second comparator comprises the 3rd sampling end (10), the 3rd reference edge (11) and the 3rd output (12); Controller includes the 4th output (13), and the first sampling end is connected between resistance R 8 and the resistance R 9, and the second sampling end is connected between resistance R 7 and the resistance R 8; The 3rd sampling end is connected between resistance R 6 and the resistance R 7; Charger also comprises voltage reference circuit (14), and first reference edge, second reference edge and the 3rd reference edge are connected on the voltage reference circuit, and first output, second output, the 3rd output and the 4th output are connected respectively on the electric weight display circuit (3).
4. a kind of electric car charger according to claim 3; It is characterized in that said electric weight display circuit (3) comprises Light-Emitting Diode D1, Light-Emitting Diode D2, Light-Emitting Diode D3 and Light-Emitting Diode D4; Said Light-Emitting Diode D1 positive pole is connected to the 4th output (13); Light-Emitting Diode D2 positive pole is connected to first output (6) through resistance R 3; Light-emitting diode D3 positive pole is connected to second output (9) through resistance R 2, and light-emitting diode D4 positive pole is connected to the 3rd output (12), and the negative pole of said light-emitting diode D1, D2, D3, D4 is ground connection respectively.
5. according to claim 3 or 4 described a kind of electric car chargers; It is characterized in that said voltage reference circuit (14) comprises resistance R 1 and a reference source; Said resistance R 1 one ends connect power supply; Resistance R 1 other end connects the negative pole of adjustable shunting a reference source, the plus earth of a reference source, and said first reference edge (5), second reference edge (8) and the 3rd reference edge (11) are connected to the negative pole of a reference source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204904 CN202602325U (en) | 2012-05-09 | 2012-05-09 | Electric vehicle charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204904 CN202602325U (en) | 2012-05-09 | 2012-05-09 | Electric vehicle charger |
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| Publication Number | Publication Date |
|---|---|
| CN202602325U true CN202602325U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220204904 Expired - Fee Related CN202602325U (en) | 2012-05-09 | 2012-05-09 | Electric vehicle charger |
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| Country | Link |
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| CN (1) | CN202602325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287271A (en) * | 2013-06-08 | 2013-09-11 | 南宁市桂驰力车有限公司 | Electromobile energy storage system |
-
2012
- 2012-05-09 CN CN 201220204904 patent/CN202602325U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287271A (en) * | 2013-06-08 | 2013-09-11 | 南宁市桂驰力车有限公司 | Electromobile energy storage system |
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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: 20121212 Termination date: 20160509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |