CN101860071B - City power supply module - Google Patents
City power supply module Download PDFInfo
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- CN101860071B CN101860071B CN 201010175302 CN201010175302A CN101860071B CN 101860071 B CN101860071 B CN 101860071B CN 201010175302 CN201010175302 CN 201010175302 CN 201010175302 A CN201010175302 A CN 201010175302A CN 101860071 B CN101860071 B CN 101860071B
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- power supply
- converter
- module
- batteries
- electric
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a city power supply module, relating to the technical field of power supplies. The module is provided with a power supply, the two ends of the power supply are respectively connected with a DC/DC converter and a city power supply module in parallel, and an ignition switch K is connected between the anode of the power supply and the DC/DC converter. The output end of the DC/DC converter is connected with an electrical appliance needing power supply, and the output end of the city power supply module is connected with the electrical appliance needing the city power supply through a diode D. The invention has the advantages of novel design, convenient installation and replacement, reduced cost as well as remarkably improved economic benefits and social benefits.
Description
Technical field
The present invention relates to power technique fields, specifically is a kind of city power supply module; Be applicable to the electric motor car electric power system.
Background technology
The use client of motor vehicle and scope are more and more widely at present.Traditional electric motor car electric power system all is single: turn-off by key switch, close all electrical equipment of having no progeny and all can not work on.If need to realize working on, then to draw power supply from battery, through the power inverter system, direct current is become alternating current, and then carry out rectification, pressure regulation by transformer and rectifier, filtering etc. just can obtain required voltage.Its shortcoming is the cost height.Also having a kind of way is voltage according to electrical equipment, and the some or several powered battery by battery pack cause battery power discharge inhomogeneous, shortens the useful life of battery pack.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of city power supply module is provided, after key switch was opened, all electrical equipment were all by original power circuit power supply; Key switch closes has no progeny, and emergent indicator light and CD player are by normal electric module for power supply; Original power circuit and normal electric module can automatically switch, and the electricity consumption of electrical equipment whenever all comes from the car load battery pack, has guaranteed that each battery discharge is even, improves the useful life of battery pack.
The present invention realizes with following technical scheme: a kind of city power supply module, comprise housing, and be installed in the power circuit in the housing; Described power circuit comprises power supply, is connected in parallel on the DC/DC converter that both ends of power is used for changing voltage; Between the positive pole of power supply and DC/DC converter, connect an igniting K switch; The output of DC/DC converter connects the electrical equipment that needs power supply; It is characterized in that: comprise also being connected in parallel on the normal electric module that both ends of power plays step-down, voltage stabilizing, current limliting, buffer action that the normal electric module output of normal electric module output is connected with the electrical equipment that needs normal electricity by diode D.
Operation principle: when ignition switch K was in the ON state, normal electric module was not worked, and this moment, power supply was given all electric power supplies through the DC/DC converter; When ignition switch K was in the OFF state, power supply was powered to the electrical equipment of the normal electricity of needs after by the automatic step-down of normal electric module, voltage stabilizing.
The invention has the beneficial effects as follows: 1, since to the conversion of voltage by module controls, so saved the complication system (as inverter, transformer, rectifier, voltage regulator, filter) that the conventional voltage conversion needs, manufacture craft is simple, dwindled simultaneously the volume of product greatly, saved the space, alleviated weight, more met electric motor car and design light-weighted requirement; 2, production intermediate links reduce, and the cycle obviously shortens, and production efficiency significantly improves; Key performance spare significantly reduces, and probability of failure significantly reduces, and accident analysis is easier; Conventional power circuit and normal electric intermodule freely switches when 3, having realized key switch unlatching/shutoff.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Accompanying drawing is circuit theory diagrams of the present invention.
Embodiment
As shown in drawings, a kind of city power supply module has a power supply, and what power supply adopted is batteries; A DC/DC converter in parallel on the batteries connects an igniting K switch between the positive pole of power supply and DC/DC converter.This DC/DC converter using be 12V DC/DC converter, 12V DC/DC converter becomes the 12V direct voltage to give all electric power supplies the 48V voltage transitions of batteries output.Also be parallel with normal electric module at both ends of power, normal electric module adopts step-down chip L73406, mainly plays step-down, voltage stabilizing, current limliting and buffer action; Normal electric module is connected with the electrical equipment that needs normal electricity by diode D, and diode D plays automatic shifting function here, and namely after electric motor car powered on, diode D turn-offed; Batteries through the loop 1. to the electric power supply in the electric motor car; After the electric motor car outage, diode D conducting; 2. batteries gives the electric power supply that needs normal electricity through the loop.Foregoing circuit is installed in the housing, causes damage in order to prevent power circuit because of vibration, can in housing, fix by casting epoxy resin.
More than by drawings and Examples the present invention has been carried out further detailed description; but the range of application of this subject matter should only not limited to above-mentioned example; under the situation that does not break away from the above-mentioned guiding theory of the present invention; various replacements or change according to ordinary skill knowledge and customary means are made all should be included within protection scope of the present invention.
Claims (1)
1. a city power supply module comprises housing, is installed in the power circuit in the housing; Described power circuit comprises batteries, is connected in parallel on the DC/DC converter that the batteries two ends are used for changing voltage; Between the positive pole of batteries and DC/DC converter, connect an igniting K switch; The DC/DC converter is exported to the electric power supply in the electric motor car; It is characterized in that: also comprise the normal electric module that is connected in parallel on the batteries two ends, normal electric module output is connected with the electrical equipment that needs normal electricity by diode D; After electric motor car powered on, diode D turn-offed; Batteries is passed through the DC/DC converter to the electric power supply in the electric motor car; After the electric motor car outage, diode D conducting; Batteries is given the electric power supply that needs normal electricity by normal electric module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010175302 CN101860071B (en) | 2010-05-11 | 2010-05-11 | City power supply module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010175302 CN101860071B (en) | 2010-05-11 | 2010-05-11 | City power supply module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101860071A CN101860071A (en) | 2010-10-13 |
| CN101860071B true CN101860071B (en) | 2013-09-04 |
Family
ID=42945790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010175302 Active CN101860071B (en) | 2010-05-11 | 2010-05-11 | City power supply module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101860071B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033196A (en) * | 2015-03-11 | 2016-10-19 | 天津圣纳科技有限公司 | Power controller of electric vehicle |
| CN105416069B (en) * | 2015-11-05 | 2017-09-26 | 南京富道电子科技有限公司 | A kind of power supply for electric car |
| CN107757373A (en) * | 2017-09-20 | 2018-03-06 | 北京长城华冠汽车科技股份有限公司 | Automobile power system and electric automobile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305912A (en) * | 2000-01-13 | 2001-08-01 | 丰田自动车株式会社 | Mains circuit |
| CN1472864A (en) * | 2002-08-02 | 2004-02-04 | 华为技术有限公司 | Power supply switching circuit for detection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10119985A1 (en) * | 2001-04-24 | 2002-10-31 | Bosch Gmbh Robert | Device for feeding energy into a multi-voltage electrical system of a motor vehicle |
-
2010
- 2010-05-11 CN CN 201010175302 patent/CN101860071B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305912A (en) * | 2000-01-13 | 2001-08-01 | 丰田自动车株式会社 | Mains circuit |
| CN1472864A (en) * | 2002-08-02 | 2004-02-04 | 华为技术有限公司 | Power supply switching circuit for detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101860071A (en) | 2010-10-13 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 221000 Jiangsu city of Xuzhou Province on the north side of the temple town of Xuzhou economic and Technological Development Zone of Xi He Xu Road Patentee after: JIANGSU ZONGSHEN MOTOR TRICYCLE MANUFACTURE CO., LTD. Address before: 221121 Jiangsu city in Xuzhou Province Economic Development Zone on the north side of the Temple West Village on the road Patentee before: Jiangsu Zongshen Motor Tricycle Manufacture Co., Ltd. |