CN205231813U - Electronic type heat distribution table with battery holds current circuit - Google Patents
Electronic type heat distribution table with battery holds current circuit Download PDFInfo
- Publication number
- CN205231813U CN205231813U CN201521103469.4U CN201521103469U CN205231813U CN 205231813 U CN205231813 U CN 205231813U CN 201521103469 U CN201521103469 U CN 201521103469U CN 205231813 U CN205231813 U CN 205231813U
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- battery
- farad capacitor
- lithium
- wireless module
- capacitor
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an electronic type heat distribution table with battery holds current circuit, include: battery supply circuit, MCU, temperature measuring unit, wireless module, LCD and operation button, wherein, battery supply circuit includes the inferior battery of lithium, farad capacitor and filter capacitance, farad capacitor connects the both ends of the inferior battery of lithium, farad capacitor includes positive terminal and earthing terminal, the positive terminal with the earthing terminal with MCU temperature measuring unit wireless module LCD and the positive terminal of operation button and the earthing terminal is connected respectively and be it respectively provides electric power, farad capacitor's capacity is 0.1~0.22F, the capacity more than or equal to 1200mAh of the inferior battery of lithium. Therefore, the utility model discloses an electronic type heat distribution table with battery holds current circuit can play and hold the effect of flowing, can provide good power configured circuit.
Description
Technical field
The utility model relates to the electric heat allocator in heat metering field, particularly relates to a kind of electric heat allocator storing current circuit with battery, can play the effect storing stream, can provide good power configuration circuit.
Background technology
Electric heat allocator that is miniaturized, low cost is widely used in heat death theory industry, is the instrument being installed on metering user man heat on user family's radiator.Electric heat allocator passes through the air themperature of accurate Calculation user heater temperature and user family, calculates the heat consumption of user family.Electron Heat allocation table is non-dismountable after installing, and can not shut down, and needs to run more than 10 years continuously, by wireless transmission, signal can be uploaded to server step by step simultaneously.This just requires that electric heat allocator can realize low-power consumption, and can meet large wireless transmission current needs, therefore needs the battery of a suitable Large Copacity, small size to provide power supply.
Large pulse current demand is there is in system, wherein the demand of wireless module SI4432 is the highest: the 100mA electric current needing 150ms duration when sending data, need to rely on farad capacitor to carry out storing stream, ensure that the leakage current of farad capacitor is little simultaneously, the system reliability service of 10 years can be maintained.In traditional electric heat allocator, the pulse current that wireless module needs is large, has exceeded the maximum current of the sub-battery of small-sized lithium, and the electric current that the sub-battery of small-sized lithium is difficult to provide enough ensures that wireless module normally works; The continuous current of the sub-battery of small-sized lithium only has 1mA, and maximum pulse current only has 10mA, far can not provide the 100mA pulse current of the 150ms of system.In addition, battery long-term work, when excess load, will have a strong impact on the useful life of battery, can not ensure that electric heat allocator reliablely and stablely runs 10 years.
Utility model content
For deficiency structural in prior art, the utility model provides a kind of electric heat allocator storing current circuit with battery, to solve electric current that the sub-battery of small-sized lithium is difficult to provide enough, to ensure the problem that wireless module normally works.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of electric heat allocator storing current circuit with battery, is characterized in that, comprising: battery feed circuit, MCU, temperature measuring unit, wireless module, liquid crystal display and operation push-button; Wherein, described battery feed circuit comprises lithium sub-battery, farad capacitor and filter capacitor, described farad capacitor is attempted by the two ends of the sub-battery of described lithium, described farad capacitor comprises positive terminal and earth terminal, and the positive terminal of described positive terminal and described earth terminal and described MCU, described temperature measuring unit, described wireless module, described liquid crystal display and described operation push-button and earth terminal are connected respectively and are respectively it provides electric power; The capacity of described farad capacitor is 0.1 ~ 0.22F, and the capacity of the sub-battery of described lithium is more than or equal to 1200mAh.
On the basis of technique scheme, the utility model can also do following improvement.
Preferably, described filter capacitor is ceramic condenser, comprises the first filter capacitor being attempted by described farad capacitor side respectively and the second filter capacitor being attempted by described wireless module side.
The beneficial effects of the utility model are: by farad capacitor store stream after, MCU, temperature measuring unit, wireless module, liquid crystal display and operation push-button are powered, thus, good power configuration circuit can be provided.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that battery feed circuit of the present utility model stores current circuit figure.
In FIG, the list of designations represented by each label is as follows:
1 battery feed circuit
The sub-battery of 11 lithiums
12 farad capacitors
13 filter capacitors
2MCU
3 temperature measuring unit
4 wireless modules
5 liquid crystal display
6 operation push-buttons
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
Please refer to shown in Fig. 1, it is structural representation of the present utility model.The described electric heat allocator storing current circuit with battery comprises: battery feed circuit 1, MCU2, temperature measuring unit 3, wireless module 4, liquid crystal display 5 and operation push-button 6, wherein, described battery feed circuit 1 comprises the sub-battery 11 of lithium, farad capacitor 12 and filter capacitor 13, described farad capacitor 12 is attempted by the two ends of the sub-battery 11 of described lithium, described farad capacitor 12 comprises positive terminal and earth terminal, described positive terminal and described earth terminal and described MCU2, described temperature measuring unit 3, described wireless module 4, the positive terminal of described liquid crystal display 5 and described operation push-button 6 is connected respectively with earth terminal and is respectively it provides electric power, the capacity of described farad capacitor 12 is 0.1 ~ 0.22F, and the capacity of the sub-battery 11 of described lithium is more than or equal to 1200mAh.
Store in the electric heat allocator of current circuit of the present utility model with battery, described farad capacitor 12 can carry out storing stream, and its leakage current, lower than 3uA, ensures that useful life of battery is unaffected, and this is that conventional electrochemical capacitor, tantalum electric capacity etc. is irreplaceable.
Further, described filter capacitor 13 can be ceramic condenser, comprises the first filter capacitor being attempted by described farad capacitor 12 side respectively and the second filter capacitor being attempted by described wireless module 4 side.
Store in the electric heat allocator of current circuit of the present utility model with battery, described temperature measuring unit 3 uses RC charge-discharge circuit to carry out thermometric, the thermometric time is 100ms, electric current is less than 1mA, wherein resistance is divided into proportion resistor, discharge resistance, thermistor, and the electric current that described liquid crystal display 5 and described operation push-button 6 need also is less than 1mA, namely, for described temperature measuring unit 3, described liquid crystal display 5 and described operation push-button 6 provide electric power, the sub-battery 11 of described lithium inherently can meet the requirements.
Described wireless module 4 is divided into transmission and receives two functions, and send and need 100mA, the duration is 150ms, belongs to pulse current demand, and reception needs 20mA, and the duration is 1s, also belongs to pulse current demand; The continuous current of the sub-battery 11 of described lithium but only has 1mA, maximum pulse current also only has 10mA---thus, store in the electric heat allocator of current circuit of the present utility model with battery, the sub-battery 11 of described lithium is preferably the ER12450 battery of French saft, by described farad capacitor 12 store stream after, described MCU2, described temperature measuring unit 3, described wireless module 4, described liquid crystal display 5 and described operation push-button 6 are powered.
In the utility model, described MCU2 is micro-control unit (MicrocontrollerUnit; MCU), be preferably MSP430F4152, it is 16 super low-power consumption MCU, there are 16KB flash memory, 512BRAM, 10 ADC, USCI, simulation COMP, 56 I/O and lcd drivers, dominant frequency 1MHz, has multiple interfaces, connects described wireless module 4 with SPI interface; Preferably, described wireless module 4 can be the SI4432 module of Xin Ke company, is responsible for the receiving equipment data of electric heat allocator sent on corridor, and then passes to the server of remote port.
Described wireless module 4 is located in residential building, carries out a wireless data every day and uploads and receive data by wireless, uploading data duration 150ms, peak current 100mA, receives data duration 1s, peak current 20mA; When described wireless module 4 is uploaded and is received data, power supply can not be completed fully only according to the sub-battery 11 of described lithium, and common store stream electric capacity, such as the capacitance of electrochemical capacitor, tantalum electric capacity is too low, can not meet the demands, therefore adopt farad capacitor, as stand-by power supply, there is provided enough electric currents, for wireless module is powered.
Please refer to shown in Fig. 2, it stores current circuit figure for battery feed circuit of the present utility model.Wherein, B1 is the sub-battery 11 of described lithium, if select the ER12450 battery of French saft, then rated voltage is 3.6V, and operating voltage changes with load, generally between 3.0V ~ 3.6V; C12 is described farad capacitor 12, C14 is the first filter capacitor being attempted by described farad capacitor 12 side, C13 is the second filter capacitor being attempted by described wireless module 4 side, and BAT is represented as the port that described MCU2, described temperature measuring unit 3, described wireless module 4, described liquid crystal display 5 and described operation push-button 6 provide electric power.
Thus, the electric heat allocator storing current circuit with battery of the present utility model, provides good power configuration circuit, can play the effect storing stream.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (2)
1. store an electric heat allocator for current circuit with battery, it is characterized in that, comprising: battery feed circuit, MCU, temperature measuring unit, wireless module, liquid crystal display and operation push-button; Wherein,
Described battery feed circuit comprises lithium sub-battery, farad capacitor and filter capacitor, described farad capacitor is attempted by the two ends of the sub-battery of described lithium, described farad capacitor comprises positive terminal and earth terminal, and the positive terminal of described positive terminal and described earth terminal and described MCU, described temperature measuring unit, described wireless module, described liquid crystal display and described operation push-button and earth terminal are connected respectively and are respectively it provides electric power;
The capacity of described farad capacitor is 0.1 ~ 0.22F, and the capacity of the sub-battery of described lithium is more than or equal to 1200mAh.
2. the electric heat allocator storing current circuit with battery according to claim 1, it is characterized in that, described filter capacitor is ceramic condenser, comprises the first filter capacitor being attempted by described farad capacitor side respectively and the second filter capacitor being attempted by described wireless module side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103469.4U CN205231813U (en) | 2015-12-24 | 2015-12-24 | Electronic type heat distribution table with battery holds current circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103469.4U CN205231813U (en) | 2015-12-24 | 2015-12-24 | Electronic type heat distribution table with battery holds current circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205231813U true CN205231813U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521103469.4U Expired - Fee Related CN205231813U (en) | 2015-12-24 | 2015-12-24 | Electronic type heat distribution table with battery holds current circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205231813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113489102A (en) * | 2021-07-12 | 2021-10-08 | 成都长城开发科技有限公司 | Metering equipment and power supply control method thereof |
-
2015
- 2015-12-24 CN CN201521103469.4U patent/CN205231813U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113489102A (en) * | 2021-07-12 | 2021-10-08 | 成都长城开发科技有限公司 | Metering equipment and power supply control method thereof |
| CN113489102B (en) * | 2021-07-12 | 2023-10-24 | 成都长城开发科技股份有限公司 | Metering equipment and power supply control method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20181224 |