CN201311564Y - Automobile clock - Google Patents
Automobile clock Download PDFInfo
- Publication number
- CN201311564Y CN201311564Y CNU2008202140730U CN200820214073U CN201311564Y CN 201311564 Y CN201311564 Y CN 201311564Y CN U2008202140730 U CNU2008202140730 U CN U2008202140730U CN 200820214073 U CN200820214073 U CN 200820214073U CN 201311564 Y CN201311564 Y CN 201311564Y
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- clock
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- power supply
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Abstract
The utility model provides an automobile clock, which comprises a clock generating unit, a control unit, a display unit and a standby power supply module. A first input end of the clock generating unit is connected to an external power supply, an output end of the clock generating unit is connected with a first input end of the control unit, a second input end of the control unit is connected to the external power supply, an output end of the control unit is connected to a first input end of the display unit, a second input end of the display unit is connected to the external power supply, an input end of the standby power supply module is connected with the external power supply, and an output end of the standby power supply module is connected to a second input end of the clock generating unit. By adding the standby power supply module, the automobile clock can still work reliably even under condition that the external power supply is abnormal, thereby increasing accuracy of the automobile clock.
Description
Technical field
The utility model relates to a kind of auto clock device.
Background technology
The part that all has clock to show at present a lot of automotive trims, clock module becomes an important component part of car body controller, but, at present extensively the auto clock module that adopts usually has following problem 1, timekeeping performance lower, and especially temperature, humidity is higher or low temperature environment under when working precision reduce; 2, relatively independent between other modules of clock module and car load, there is not corresponding data interaction; 3, clock module adopts battery feed, after power supply electric weight wretched insufficiency or the unusual cut-out of power supply quilt, need carry out time set again.
The utility model content
In view of this, the purpose of this utility model be to provide a kind of can be under the situation that power supply electric weight deficiency or power supply are cut off unusually, the accurate auto clock of timing still.
In order to solve above purpose, the technical solution of the utility model is: a kind of auto clock, comprise clock generating unit, control module and display unit, the first input end of described clock generating unit is connected to external power source, and the output terminal of described clock generating unit is connected with the first input end of control module; Second input end of described control module is connected to external power source, and the output terminal of described control module is connected to the first input end of display unit; Second input end of described display unit is connected to external power source, simultaneously, also comprises standby power supply module, and wherein, the input end of described standby power supply module is connected with external power source, and its output terminal is connected to second input end of clock generating unit.
The utility model is because increased can be under the situation that power supply electric weight deficiency or power supply are cut off unusually, can provide electric power for clock generating unit, thereby make its accurately standby power supply module of timing, thereby make in this case, do not need the artificial clock correction that carries out, and then increased the accuracy of clock, simultaneously, because the components and parts that standby power supply module of the present utility model adopts are diode and farad capacitor, its price is relatively low, and therefore production cost of the present utility model is also relatively low to a certain extent.
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the circuit diagram of the standby power supply module of a kind of embodiment of the utility model;
Fig. 3 is the circuit diagram of the clock generating unit of a kind of embodiment of the utility model;
Fig. 4 is the application synoptic diagram of a kind of embodiment of the utility model.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
Referring to Fig. 1, the auto clock that the utility model provides comprises a kind of auto clock 100, comprise clock generating unit 3, control module 5 and display unit 6, the first input end of described clock generating unit 3 is connected to external power source 1, and the output terminal of described clock generating unit 3 is connected with the first input end of control module 5; Second input end of described control module 5 is connected to external power source 1, and the output terminal of described control module 5 is connected to the first input end of display unit 6; Second input end of described display unit 6 is connected to external power source 1, simultaneously, also comprises standby power supply module 2, and wherein, the input end of described standby power supply module 2 is connected with external power source 1, and its output terminal is connected to second input end of clock generating unit 3.
According to understanding, above-described external power source is a direct supply, can be thereby can provide for the direct current of its operate as normal for the display unit 6 that described standby power supply module 2, clock generating unit 3, clock regulon 4, control module 5 and back will be discussed, under the preferable case, described direct supply is an accumulator.
Referring to Fig. 2, described standby power supply module 2 comprises diode D1 and farad capacitor C1, the anode of described diode D1 is connected to external power source 1, and negative electrode is connected the minus earth of described farad capacitor C1 with the first input end anodal and described clock generating unit 3 of described farad capacitor C1.
As Fig. 3, described clock generating unit 3 comprises clock chip, the Vcc end of described clock chip is connected to external power source 1, and the Vbb end is connected with the output terminal of described standby power supply module 2, and the output terminal of described clock chip is connected to the first input end of described control module 5.Under the preferable case, described clock chip is the DS3231 clock chip.
Described display unit 6 comprises driver module 61 and display 62, wherein, wherein, described driver module 61 is accepted the output signal of described control module 5 and is handled, and described display 62 is accepted the signal of handling through described driver module 61 and shown output.Described display 62 except can show current hour and minute information, can also show date and week information, wherein, the described date, hour and branch information all can set up on their own by the user, for example when the user finds that there are error on date in a certain moment or temporal information or other information, can in time find and in time set up on their own by clock regulon 4.
In addition, described auto clock 100 also comprises clock regulon 4, and the input end of described clock regulon 4 is connected to external power source 1, and the 3rd input end that its output terminal is connected to control module 5 connects.When current display unit 6 shows abnormal conditions, or when externally the whole power down of abnormal conditions so that auto clock 100 has appearred in power supply 1, need carry out the manual adjustments of temporal information and other relevant informations by the clock regulon 4 that is provided with, the implementation of described clock regulon 4 has various, for example, can be push button, by the pressing button of thinking can be artificial the adjusting relevant information, and show by display unit 6.
Below, the principle of work of the standby power supply module 2 that provides at the utility model describes.
When external power source 1 just often, all unit in the auto clock 100, for example clock generating unit 3, clock regulon 4, control module 5 and display unit 6, operate as normal all powers on, and the Vcc of the clock chip in the described clock generating unit 3 end is connected to external power source 1, in the case, user or relevant maintainer can set clock information by described clock regulon 4, and the information after setting can show concrete information by described display unit 6 on display, and, in a kind of embodiment of the present utility model (content can vide infra), described auto clock 100 can send to car load CAN network to current clock information by the CAN module, thereby realizes information sharing with other vehicle-mounted modules.Simultaneously, external power source 1 charges to farad capacitor C1 by the diode D1 in the described standby power supply module 2.
When external power source 1 undesired, or because external power source 1 electric weight deficiency/power shortage, or when making that owing to reasons such as broken strings external power source 1 can't normally provide power supply, clock regulon 4 in the auto clock 100, control module 5 and display unit 6 all can't operate as normal, but the Vbb of described clock generating unit 3 end can provide the electric energy that is enough to keep described clock generating unit 3 operate as normal by the farad capacitor C1 in the described standby power supply module 2, thereby make the accurately timing of described clock generating unit 3, in the case, because among a kind of embodiment of the present utility model, the clock chip of described clock generating unit 3 is the DS3231 clock chip, its chip has temperature and aging the correction to its built-in crystal oscillator, the timekeeping performance of this clock chip is at-40 ℃ of-85 ℃ of temperature range Nei Keda ± 3.5ppm, 1 month walk time error less than 10 seconds.In this case, the Vbb end of the clock chip in the described clock generating unit 3 is connected to standby power supply module 2, described clock generating unit 3 is under the lowest power consumption pattern, current sinking only is 1uA, so that the farad capacitor C1 that is full of electric weight can provide the electric weight more than 20 days when keeping described clock generating unit 3 and accurately walking.Like this, even described auto clock 100 just re-powers after 20 days, or external power source 1 recovers operate as normal, the temporal information that the user reads by described display unit 6 also is the accurate information of current actual clock, do not need clock information is reset, improved the accuracy of auto clock 100 to a certain extent.
Among a kind of embodiment of the present utility model, described standby power supply module 2 comprises farad capacitor and diode, certainly, described farad capacitor can also adopt other forms of electrical storage device to replace, for example chargeable button cell, but it is cheaply more a lot of than adopting chargeable button cell or other forms of battery cost that standby power supply module 2 adopts farad capacitor, if calculate to keep timing in 20 days equally, if employing button cell, the capacity of its battery need be up to more than the 1.5Ah, so not only cost is too high, and volume is also very big, adopts farad capacitor then to have apparent in view advantage.
Referring to Fig. 1 and Fig. 4, among a kind of embodiment of the present utility model, described auto clock 100 also comprises the CAN module, and the input end of described CAN module is connected to described control module 5, and described CAN module is by CAN bus and at least a vehicle-mounted module swap data.
Generally speaking, described vehicle-mounted module is fault diagnosis module, drive recorder, combination instrument, car body control module, Climate Control Module or other modules.But, continuous development along with car industry and electronic technology, automobile function module integrated on the vehicle complete vehicle can get more and more, but according to spiritual thought of the present utility model, described auto clock 100 equally can by the CAN bus realize with described automobile function module between communicate by letter, realize sharing of information data, thereby realize the further lifting of vehicle complete vehicle comfortableness, security and reliability.
Below with regard to the CAN module in the described auto clock 100 how to realize with other vehicle-mounted modules between communicate by letter and realize that information sharing does simple an introduction.
Among Fig. 4, CAN module by described setting realizes being connected with car load CAN network by the CAN bus, described auto clock 100 sends to current date and time other modules of car load as reference clock by the CAN bus, other modules receive these reference clock data and carry out corresponding necessary processing, for example failure diagnostic apparatus can read with record trouble information in, receive the current date that sends over by described auto clock 100 by the CAN network, the reference clock information of time and other information, so that described failure diagnostic apparatus can show the time that occurs with record trouble in handling failure information, like this when each maintenance of vehicle or maintenance, can help the maintenance personal to judge more exactly and keep in repair by inquiring about corresponding historical failure and historical failure generation time.The maintenance personal can be according to the fault generation time, thereby traffic route, climatic condition and other many information that inquiry fault on the same day produces produce and they get in touch thereby can more be easy to find out fault according to these information.In addition, for example drive recorder also can carry out corresponding detailed record to the running status of vehicle according to the temporal information of record again, or the like.Thereby the corresponding signal that other many motor vehicle module bases and the auto clock 100 that uses the utility model to provide produce is used principle and the method for its module, can be according to the difference of the functional purpose of its module, model parameter and different, the relevant knowledge that those skilled in the art obviously can be had by itself, learn its corresponding concrete implementing measure easily, no longer be elaborated for example one by one here.
The utility model is because increased can be under the situation that power supply electric weight deficiency or power supply are cut off unusually, can provide electric power for clock generating unit 3, thereby make its accurately standby power supply module 2 of timing, thereby make in this case, do not need the artificial clock correction that carries out, and then increased the accuracy of clock, simultaneously, because the components and parts that standby power supply module 2 of the present utility model adopts are diode and farad capacitor, its price is relatively low, and therefore its production cost of auto clock of the present utility model has also reduced much to a certain extent relatively.
More than lift preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; institute is understood that; the above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle; any modification of being done, be equal to replacement, improvement etc.; all should be included within the protection domain of the present utility model; the interest field that the utility model is advocated should be as the criterion so that the utility model application scope is described, but not only limits to the foregoing description.
Claims (10)
1, a kind of auto clock comprises clock generating unit, control module and display unit, and the first input end of described clock generating unit is connected to external power source, and the output terminal of described clock generating unit is connected with the first input end of control module; Second input end of described control module is connected to external power source, and the output terminal of described control module is connected to the first input end of display unit; Second input end of described display unit is connected to external power source, it is characterized in that, also comprises standby power supply module, and wherein, the input end of described standby power supply module is connected with external power source, and its output terminal is connected to second input end of clock generating unit.
2, auto clock according to claim 1 is characterized in that, also comprises the clock regulon, and the input end of described clock regulon is connected to external power source, and its output terminal is connected to the 3rd input end of control module.
3, auto clock according to claim 2, it is characterized in that, described display unit comprises driver module and display, it is characterized in that, described driver module is accepted the output signal of described control module and is handled, and described display is accepted the signal of handling through described driver module and shown output.
4, auto clock according to claim 1, it is characterized in that, described standby power supply module comprises diode D1 and farad capacitor C1, the anode of described diode D1 is connected to external power source, negative electrode is connected the minus earth of described farad capacitor C1 with the first input end anodal and described clock generating unit of described farad capacitor C1.
5, auto clock according to claim 1 is characterized in that, also comprises the CAN module, and the first input end of described CAN module is connected to described control module, and described CAN module is by CAN bus and at least a vehicle-mounted module swap data.
6, auto clock according to claim 5 is characterized in that, described vehicle-mounted module is fault diagnosis module, drive recorder, combination instrument, car body control module, Climate Control Module or other modules.
7, auto clock according to claim 1, it is characterized in that, described clock generating unit comprises clock chip, the Vcc end of described clock chip is connected to external power source, the Vbb end is connected with the output terminal of described standby power supply module, and the output terminal of described clock chip is connected to the first input end of described control module.
8, auto clock according to claim 7 is characterized in that, described clock chip is the DS3231 clock chip.
9, auto clock according to claim 1 is characterized in that, described external power source is a direct supply.
10, auto clock according to claim 9 is characterized in that, described direct supply is an accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202140730U CN201311564Y (en) | 2008-11-29 | 2008-11-29 | Automobile clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202140730U CN201311564Y (en) | 2008-11-29 | 2008-11-29 | Automobile clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201311564Y true CN201311564Y (en) | 2009-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202140730U Expired - Lifetime CN201311564Y (en) | 2008-11-29 | 2008-11-29 | Automobile clock |
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| Country | Link |
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| CN (1) | CN201311564Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976038A (en) * | 2010-09-14 | 2011-02-16 | 广东美的电器股份有限公司 | Time self-calibration air conditioner and time self-calibration control method thereof |
| CN102129217A (en) * | 2010-11-25 | 2011-07-20 | 埃泰克汽车电子(芜湖)有限公司 | Device for verifying accuracy of automobile instrument clock and verifying method thereof |
| CN102589633A (en) * | 2012-03-07 | 2012-07-18 | 四川恒芯科技有限公司 | Data processing system embedded in gas meter |
| CN103587418A (en) * | 2013-08-09 | 2014-02-19 | 科蒂斯技术（苏州）有限公司 | Composite-type intelligent instrument used for electromobile |
| CN104898491A (en) * | 2014-03-04 | 2015-09-09 | 广州汽车集团股份有限公司 | Master controller clock reset processing method and device and corresponding automobile |
| CN105278354A (en) * | 2014-05-30 | 2016-01-27 | 青岛海尔洗碗机有限公司 | Power-off memory circuit and household electrical appliance control system |
| CN106773617A (en) * | 2016-11-28 | 2017-05-31 | 北京汽车研究总院有限公司 | A kind of automobile |
| CN109343327A (en) * | 2018-11-20 | 2019-02-15 | 安徽安凯汽车股份有限公司 | A kind of car electronic clock |
| CN111766774A (en) * | 2020-06-24 | 2020-10-13 | 东风电驱动系统有限公司 | Low-power-consumption vehicle-mounted clock device |
| CN113050591A (en) * | 2021-03-09 | 2021-06-29 | 奇瑞商用车（安徽）有限公司 | Method and system for storing timestamp in electric vehicle fault diagnosis |
-
2008
- 2008-11-29 CN CNU2008202140730U patent/CN201311564Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976038A (en) * | 2010-09-14 | 2011-02-16 | 广东美的电器股份有限公司 | Time self-calibration air conditioner and time self-calibration control method thereof |
| CN102129217A (en) * | 2010-11-25 | 2011-07-20 | 埃泰克汽车电子(芜湖)有限公司 | Device for verifying accuracy of automobile instrument clock and verifying method thereof |
| CN102129217B (en) * | 2010-11-25 | 2013-02-06 | 埃泰克汽车电子(芜湖)有限公司 | Device for verifying accuracy of automobile instrument clock and verifying method thereof |
| CN102589633A (en) * | 2012-03-07 | 2012-07-18 | 四川恒芯科技有限公司 | Data processing system embedded in gas meter |
| CN103587418A (en) * | 2013-08-09 | 2014-02-19 | 科蒂斯技术（苏州）有限公司 | Composite-type intelligent instrument used for electromobile |
| CN104898491A (en) * | 2014-03-04 | 2015-09-09 | 广州汽车集团股份有限公司 | Master controller clock reset processing method and device and corresponding automobile |
| CN105278354A (en) * | 2014-05-30 | 2016-01-27 | 青岛海尔洗碗机有限公司 | Power-off memory circuit and household electrical appliance control system |
| CN106773617A (en) * | 2016-11-28 | 2017-05-31 | 北京汽车研究总院有限公司 | A kind of automobile |
| CN109343327A (en) * | 2018-11-20 | 2019-02-15 | 安徽安凯汽车股份有限公司 | A kind of car electronic clock |
| CN111766774A (en) * | 2020-06-24 | 2020-10-13 | 东风电驱动系统有限公司 | Low-power-consumption vehicle-mounted clock device |
| CN113050591A (en) * | 2021-03-09 | 2021-06-29 | 奇瑞商用车（安徽）有限公司 | Method and system for storing timestamp in electric vehicle fault diagnosis |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |
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| CX01 | Expiry of patent term |