CN201352681Y - Electronic noncontacting central electrical box - Google Patents
Electronic noncontacting central electrical box Download PDFInfo
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- CN201352681Y CN201352681Y CNU2009200013006U CN200920001300U CN201352681Y CN 201352681 Y CN201352681 Y CN 201352681Y CN U2009200013006 U CNU2009200013006 U CN U2009200013006U CN 200920001300 U CN200920001300 U CN 200920001300U CN 201352681 Y CN201352681 Y CN 201352681Y
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Abstract
The utility model provides an electronic noncontacting central electrical box which comprises a power supply module, an input module, a master control module and an output module, wherein the master control module collects various input signals from the input module and transforms the input signals to logic switch signals and then transmits the logic switch signals to the output module, the output module comprises an output signal processing unit, a power output unit and an output interface circuit, wherein the output signal processing unit processes the logic switch signals from the master control module and transmits the logic switch signals to the power output unit so as to drive the power output unit, moreover, the power output unit which mainly consists of an intelligent power switch is electrically connected with the output interface circuit for controlling the conducting and breaking of a control circuit according to the driving of the logic switch signals which are transmitted by the output signal processing unit, and the output interface circuit is used to provide an output interface which is connected to outside. The electronic noncontacting central electrical box has high stability, wide using range and small volume.
Description
Technical field
The utility model relates to a kind of central electrical equipment box, relates in particular to the contactless central electrical equipment box of a kind of electronic type.
Background technology
Traditional central electrical equipment box mainly adopts relay as mains switch, to control the unequally loaded special purpose relay concentrates in together, because the relay volume is bigger, cause whole central electrical equipment box profile bigger, and relay by armature adhesive and disconnect the break-make of control load, belong to the mechanical contact contact, its contact resistance can increase along with the number of times that uses, be restricted useful life, is unfavorable for the stability of system.
Traditional central electrical equipment box can't be realized the special control of load, for example the brightness of car light, the rotating speed of rain shaving electrical machine etc. is controlled.Above-mentioned control performance adopts the PWM technology just can realize usually, is operated on off operating mode but the characteristics of PWM technology are the control switch devices, and relay can not be worked in this state because of the shortcoming of himself.Traditional central electrical equipment box mainly adopts fuse to protect load, and fuse is in case fusing just can only be unfavorable for the maintenance of system by the switching device ability proof load operate as normal that more renews.Traditional central electrical equipment box does not possess bus interface, can't carry out information sharing with other motor vehicle module.
Summary of the invention
Main purpose of the present utility model is to provide a kind of electronic type contactless central electrical equipment box, its stability is high, and the scope of application is wide, and volume is little, can realize auto electrical appliance spare is carried out centralized control, reached simplify circuit, be convenient to install, the purpose of maintenance and trouble shoot.
In order to achieve the above object, the utility model provides a kind of electronic type contactless central electrical equipment box, it comprises power module, input module, main control module and output module, and wherein, described main control module is electrically connected with described input module, described power module and described output module respectively;
Described input module is used for input signal is converted to the signal that microprocessor can be handled, and is sent to described main control module;
Described main control module comprises microprocessor, is used to gather all kinds of input signals from described input module, is converted into the logic switch signal, and this logic switch signal is sent to described output module;
Described output module comprises output signal processing unit, power output unit and output interface circuit;
Described output signal processing unit, be electrically connected with described main control module and described power output unit respectively, be used to handle logic switch signal, and the logic switch signal after will handling is sent to described power output unit, to drive described power output unit from described main control module;
Described power output unit mainly is made up of intelligent power switch, is electrically connected with described output interface circuit, is used for the driving according to the logic switch signal of described output signal processing unit transmission, the conducting of control circuit and disconnection;
Described output interface circuit is used to provide and outside output interface.
Preferably, electronic type described in the utility model is contactless, and central electrical equipment box also comprises communication module,
Described communication module is electrically connected with described main control module, is used to provide the interface of described main control module and PERCOM peripheral communication.
Preferably, described communication module comprises the CAN bus interface, and described CAN bus interface is communicated by letter with the CAN bus interface of described main control module.
Preferably, described communication module also comprises the LIN interface, the LIN interface communication of described LIN interface and described main control module.
Preferably, described communication module also comprises the RS232 serial line interface, the RS232 interface communication of described RS232 serial line interface and described main control module.
Preferably, electronic type described in the utility model is contactless, and central electrical equipment box also comprises feedback module,
Described feedback module, the output with described main control module and described power output unit is electrically connected respectively, and the operating state of described power output unit is fed back to described main control module.
Preferably, electronic type described in the utility model is contactless, and central electrical equipment box also comprises alarm module, and the fault feedback pin of the intelligent power switch of described power output unit is electrically connected a pull-up resistor;
Described alarm module is electrically connected with described fault feedback pin, by detecting the level state of described fault feedback pin, judges whether described intelligent power switch breaks down.
Compared with prior art; electronic type described in the utility model is contactless central electrical equipment box; adopted microprocessor as main control module; provide power supply by intelligent power switch for the various loads of automotive interior, not only the magnitude of current that can pass through is big, smaller volume; also eliminated short defective of traditional electrical equipment box electric spark and life-span; can realize the full guard of load, and get rid of the contactless central electrical equipment box of back electronic type in fault and can also recover operate as normal automatically, not need to change device.
Description of drawings
Fig. 1 is the structured flowchart of the contactless central electrical equipment box of electronic type described in the utility model.
Embodiment
Along with the continuous development of automotive semiconductor technology, many electronic devices and components with high reliability continue to bring out, and make the contactless central electrical equipment box of research and development novel electronic formula become possibility, and the utility model promptly provides a kind of electronic type contactless central electrical equipment box.
Electronic type described in the utility model is contactless central electrical equipment box adopts intelligent power switch (IPS) replaces in traditional central electrical equipment box relay.Intelligent power switch mainly is made of metal-oxide-semiconductor, forms the break-make that conductive channel comes Control current by apply voltage at control end, for load provides electric energy; The break-make mode of described intelligent power switch is different from the mechanical type contact of relay fully, can not be subjected to the restriction of conducting number of times in theory, can improve useful life, increases the reliability of system.In addition, adopt intelligent power switch just can utilize the PWM pulse modulation technology that some special loads are handled, for example control car light brightness, the rotating speed of rain shaving electrical machine is regulated or the like, and improving constantly along with microelectronic technique, the conducting resistance of metal-oxide-semiconductor has reached the milliohm level, can handle big electric current safely, widen the scope of using.
The inner integrated auxiliary circuit of intelligent power switch, described auxiliary circuit comprises protective circuit, gate drive circuit and failure detector circuit, only needs a simple T TL level input just can control intelligent power switch and moves; And intelligent power switch can be closed automatically when fault such as overcurrent, excess temperature and overvoltage occurring when system, with the protection load; After the fault of system is eliminated, intelligent power switch can recover operate as normal, improved the fail safe of system, and intelligent power switch can be given the user with current state feedback by the malfunction monitoring pin, made things convenient for the user to grasp the working condition of intelligent power switch in time, exactly, and adjusted in real time.
The CAN bussing technique is because its outstanding advantage obtains application more and more widely in the design of automobile electronic control unit, the CAN bus belongs to bus type serial communication network, because it has adopted many new technologies and unique design, compare with general bus, the data communication of CAN bus has outstanding reliability, real-time and flexibility, therefore, adopt the CAN bussing technique can realize that the information sharing between ECU (Electrical Control Unit) is mutual, reduced the vehicle body wiring, reduce cost, improved the reliability of system.In order to participate in the bus communication between automobile electronic control unit, bus communication module that electronic type is contactless central electrical equipment box is inner integrated, can be used as on the controller network independently, node and other bus modules carry out interactive type communication.
As shown in Figure 1, electronic type described in the utility model is contactless central electrical equipment box, comprise power module 11, input module 12, main control module 13, output module 14, communication module 15 and feedback module 16, wherein, described main control module 13 is electrically connected with described input module 12, described power module 11, described output module 14 and described feedback module 16 respectively, described feedback module 16 is electrically connected with described output module 13, and described main control module 13 is electrically connected with described communication module 15;
Described input module 12 is used for input signal is converted to the signal that microprocessor can be handled, and is sent to described main control module 13;
According to a kind of embodiment, described input module 12 comprises analog input unit 121, digital input unit 122 and frequency input unit 123;
Because the conventional input signal on the automobile comprises digital signal, analog signal and frequency signal, therefore the utility model has designed the frequency input unit 123 of the analog input unit 121 of treatment of simulated input signal, the digital input unit 122 of handling digital input signals and processing frequency input signal respectively, respectively analog input signal, digital input signals and frequency input signal is converted to the manageable signal of microprocessor:
Digital input signals and analog input signal are converted to voltage signal, so that carry out sampling processing by the A/D sampling module of microprocessor;
The frequency input signal is converted to the TTL square-wave signal through shaping circuit, so that carry out sampling processing by the frequency acquisition module of microprocessor;
Described main control module 13 is used to gather all kinds of input signals from described input module 12, is converted into the logic switch signal according to demand for control, and this logic switch signal is sent to described output module 14;
Described main control module 13 comprises microprocessor and governor circuit;
Traditional central electrical equipment box does not adopt micro treatment module to control, but adopt simple supply cord switch formula control, after the utility model has adopted micro treatment module, control logic is by software processes, both can increase the passage of control, reduced original control device again, made the smaller volume of electrical equipment box, function is heightened;
Described communication module 15 is used to provide the interface of described main control module 13 with PERCOM peripheral communication;
According to a kind of embodiment, described communication module 15 comprises CAN bus interface, LIN interface and RS232 serial line interface, respectively with CAN bus interface, LIN interface and the RS232 serial interface communication of described main control module;
Described output module 14 comprises output signal processing unit 141, power output unit 142 and output interface circuit 143;
Described output signal processing unit 141, be electrically connected with described main control module 13 and described power output unit 142 respectively, be used to handle logic switch signal from described main control module, and the logic switch signal after will handling is sent to described power output unit 142, to drive described power output unit 142;
Described power output unit 142 mainly is made up of intelligent power switch, is electrically connected with described output interface circuit 143, is used for the driving according to the logic switch signal of described output signal processing unit 141 transmission, the conducting of control circuit and disconnection;
Described output interface circuit 143 is used to provide and outside output interface.
Described feedback module 16 is electrically connected with the output and the described main control module 13 of described power output unit 142 respectively, and the operating state of described power output unit 142 is fed back to described main control module 13;
Electronic type described in the utility model is contactless central electrical equipment box, do not need hardware circuit is made change, promptly can be configured the just control of input signal, negative control, it realizes that by sending control word by host computer to microprocessor microprocessor is realized the positive and negative control configuration of input by software program according to the control word that receives.
Electronic type described in the utility model is contactless central electrical equipment box can also be gathered frequency signal; The collection of frequency signal comprises signal capture and calculating, could realize by microprocessor, and traditional central electrical equipment box does not possess this function.
In addition, traditional central electrical equipment box is that the employing fuse is realized the protection to load, when reaching the fusing rated value of the super fuse of electric current, and fuse blows, the load outage has only the fuse that more renews just can make the load operate as normal.And at the contactless central electrical equipment box of electronic type described in the utility model; adopt intelligent power switch; therefore can save fuse; because the inner integrated auxiliary circuit of protecting of intelligent power switch; when overcurrent occurring; excess temperature can both be closed output automatically with protection device and load during situations such as overvoltage, wider than traditional central electrical equipment box on the defencive function scope.
In the utility model, intelligent power switch has the fault feedback pin, connect in the fault feedback pin and to draw resistance, this pin state is high under the normal condition, when above-mentioned fault occurring, this pin status drags down, and whether the state that detects this pin by microprocessor just can detect this device and break down.
According to a kind of embodiment, electronic type described in the utility model is contactless, and central electrical equipment box also comprises alarm module, the fault feedback pin of the intelligent power switch of described power output unit 142 is electrically connected with described alarm module, described alarm module judges by detecting the level state of described fault feedback pin whether described intelligent power switch breaks down.
Preferably, described alarm module is for dodging a sign indicating number lamp, and can judge that what fault what occur be by the form of dodging sign indicating number, is very easy to the processing to fault, shortened the repair time.
Electronic type described in the utility model is contactless, and central electrical equipment box is assembled into a system with auto electrical appliance control element, circuit monitoring element and alarm element by printed circuit board (PCB) controls, realized auto electrical appliance spare is carried out centralized control, reached simplify circuit, be convenient to install, the purpose of maintenance and trouble shoot.Electronic type described in the utility model is contactless, and central electrical equipment box has adopted smart power device, and not only the magnitude of current is big, volume is little, has also eliminated the electric spark and the short defective of life-span of traditional electrical equipment box, can realize the full guard of load circuit; After fault was got rid of, electronic type described in the utility model is contactless, and central electrical equipment box can also recover operate as normal automatically, does not need to change device.
More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from claims and limited; can make many modifications; change or equivalence, but all will fall in the protection range of the present utility model.
Claims (7)
1, the contactless central electrical equipment box of a kind of electronic type is characterized in that it comprises power module, input module, main control module and output module, and wherein, described main control module is electrically connected with described input module, described power module and described output module respectively;
Described input module is used for input signal is converted to the signal that microprocessor can be handled, and is sent to described main control module;
Described main control module comprises microprocessor, is used to gather all kinds of input signals from described input module, is converted into the logic switch signal, and this logic switch signal is sent to described output module;
Described output module comprises output signal processing unit, power output unit and output interface circuit;
Described output signal processing unit, be electrically connected with described main control module and described power output unit respectively, be used to handle logic switch signal, and the logic switch signal after will handling is sent to described power output unit, to drive described power output unit from described main control module;
Described power output unit mainly is made up of intelligent power switch, is electrically connected with described output interface circuit, is used for the driving according to the logic switch signal of described output signal processing unit transmission, the conducting of control circuit and disconnection;
Described output interface circuit is used to provide and outside output interface.
2, the contactless central electrical equipment box of electronic type as claimed in claim 1 is characterized in that it also comprises communication module,
Described communication module is electrically connected with described main control module, is used to provide the interface of described main control module and PERCOM peripheral communication.
3, the contactless central electrical equipment box of electronic type as claimed in claim 1 or 2 is characterized in that described communication module comprises the CAN bus interface, and described CAN bus interface is communicated by letter with the CAN bus interface of described main control module.
4, the contactless central electrical equipment box of electronic type as claimed in claim 3 is characterized in that described communication module also comprises the LIN interface, the LIN interface communication of described LIN interface and described main control module.
5, the contactless central electrical equipment box of electronic type as claimed in claim 4 is characterized in that described communication module also comprises the RS232 serial line interface, the RS232 interface communication of described RS232 serial line interface and described main control module.
6, the contactless central electrical equipment box of electronic type as claimed in claim 1 or 2 is characterized in that it also comprises feedback module,
Described feedback module, the output with described main control module and described power output unit is electrically connected respectively, and the operating state of described power output unit is fed back to described main control module.
7, the contactless central electrical equipment box of electronic type as claimed in claim 6 is characterized in that it also comprises alarm module, and the fault feedback pin of the intelligent power switch of described power output unit is electrically connected a pull-up resistor;
Described alarm module is electrically connected with described fault feedback pin, by detecting the level state of described fault feedback pin, judges whether described intelligent power switch breaks down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200013006U CN201352681Y (en) | 2009-02-11 | 2009-02-11 | Electronic noncontacting central electrical box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200013006U CN201352681Y (en) | 2009-02-11 | 2009-02-11 | Electronic noncontacting central electrical box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201352681Y true CN201352681Y (en) | 2009-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200013006U Expired - Lifetime CN201352681Y (en) | 2009-02-11 | 2009-02-11 | Electronic noncontacting central electrical box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201352681Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177613A (en) * | 2017-12-28 | 2018-06-19 | 河北正电器科技有限公司 | Contactless intelligent low-voltage distribution box |
| CN109375021A (en) * | 2018-11-16 | 2019-02-22 | 浙江理工大学 | A kind of universal program controlled testing system and method for electric car central electrical part holder |
-
2009
- 2009-02-11 CN CNU2009200013006U patent/CN201352681Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177613A (en) * | 2017-12-28 | 2018-06-19 | 河北正电器科技有限公司 | Contactless intelligent low-voltage distribution box |
| CN109375021A (en) * | 2018-11-16 | 2019-02-22 | 浙江理工大学 | A kind of universal program controlled testing system and method for electric car central electrical part holder |
| CN109375021B (en) * | 2018-11-16 | 2024-02-06 | 浙江理工大学 | Universal program control testing system and method for electric automobile central electric box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HARBIN VITI ELECTRONICS CO., LTD. Free format text: FORMER NAME: HARBIN VITI AUTOMOTIVE ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Haping Road Development Zone in Harbin City, Heilongjiang province 150060 zone haping Road No. 11 Patentee after: Harbin Viti Electronics Co., Ltd. Address before: Haping Road Development Zone in Harbin City, Heilongjiang province 150060 zone haping Road No. 11 Patentee before: Harbin VITI Automobile Electronics Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |