CN203396448U - Liquid level display and liquid level detection system - Google Patents
Liquid level display and liquid level detection system Download PDFInfo
- Publication number
- CN203396448U CN203396448U CN201320180830.8U CN201320180830U CN203396448U CN 203396448 U CN203396448 U CN 203396448U CN 201320180830 U CN201320180830 U CN 201320180830U CN 203396448 U CN203396448 U CN 203396448U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- level display
- battery
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model provides a liquid level display and a liquid level detection system. During the use of the liquid level display provided by the embodiment of the utility model, an internal battery is used for providing electric energy for electronic components on a circuit board in the liquid level display; a signal detection circuit is used for converting a capacitance signal input by a liquid level sensor to a digital signal and input in a processor; and the processor is used for performing signal processing and then directly displaying the liquid volume of a vehicle-mounted bottle and other parameters by a display screen. Compared with a liquid level display in the prior art, the liquid level display provided by the utility model is provided with the own battery, thus facilitating a user to view the liquid volume in the bottle at any time, improving universality and convenience, and reducing after-sale expenses.
Description
Technical field
The utility model relates to technical field of electronic equipment, especially relates to a kind of liquid level display and liquid level detection system.
Background technology
Liquid level display is mainly used in liquefied natural gas (LNG) (Liquefied Natural Gas, LNG) automobile industry, and as LNG big bus, LNG heavily block etc., it is mainly used to obtain and show the volume of LNG vehicle-mounted bottle the inside liquid.
If desired accurately monitor the volume of LNG gas cylinder internal liquid, first need to liquid level display carry out empty bottle zeroing, a full bottle school completely arranges.Liquid level display of the prior art is all that requirement bottle factory first measures empty bottle capacitance, then this capacitance and bottle number are issued to liquid level display producer, Zai You liquid level display producer writes on and on liquid level display, beams back Ping Chang，Ping factory and receive to check the number one by one after liquid level display again liquid level display is arranged on and on bottle, mails to depot again by the capacitance input liquid level display of this bottle and by this bottle number.In these links, often can lead to errors; for example: bottle factory is incorrect by empty bottle measured capacitance value; liquid level display producer does not correctly write liquid level display by capacitance; bottle factory is not by mistakes such as liquid level display and corresponding bottle of corresponding installations; so just caused debugging trouble; delivery cycle is long, simultaneously service side's face is also pretty troublesome after sale, to impacting after sale.
In addition, liquid level display of the prior art can not adapt to same bottle and fill different media, and for example, if medium has become (having become liquid oxygen by liquefied natural gas (LNG)), liquid level display can not accurately show the liquid measure of respective media.Because liquid level display of the prior art must could be worked by external power supply, this has caused a lot of inconvenience just to the use in the place that there is no condition of power supply.
Utility model content
The utility model provides a kind of liquid level display and liquid level detection system, and it is more accurate that it can realize gas cylinder level gauging, debugs convenient.
The utility model proposes a kind of liquid level display, comprising:
Drain pan, upper cover, circuit board, battery;
Described circuit board, battery accommodating, in the space that described drain pan and upper cover surround, comprise processor, signal deteching circuit, key circuit and display screen on described circuit board;
Described signal deteching circuit is connected between described processor and the liquid level sensor of gas cylinder, the signal of described liquid level sensor input is changed in the described processor of rear input, described battery, key circuit, display screen are all connected with described processor, on described battery, are provided with power switch.
Preferably, the described key circuit of described liquid level display comprises empty bottle button, full bottle button and button is set.
Preferably, the described battery of described liquid level display is rechargeable battery, on described battery, be also provided with charge port, described liquid level display also comprises battery charger, and described battery charger is for being connected with described charge port and described rechargeable battery being charged.
Preferably, the described display screen of described liquid level display is LCDs.
Preferably, the described power switch of described liquid level display is protruding from the sidewall of described drain pan.
Preferably, between the described drain pan of described liquid level display and upper cover, be connected by screw, described circuit board is fixed by screws on the inwall of described drain pan.
The utility model also provides a kind of liquid level detection system, comprises liquid level sensor, also comprises liquid level display as above.
As from the foregoing, the liquid level display that the present embodiment provides in use, built-in battery provides electric energy for the electronic component on the circuit board in liquid level display, signal deteching circuit is for being transformed into digital signal input processor by the capacitance signal of liquid level sensor input, and processor carries out by display screen, directly showing vehicle-mounted bottle liquid volume and other parameters after signal processing.Compare with liquid level display of the prior art, the liquid level display that the utility model provides is from charged pool, and then facilitates user to check at any time a bottle interior liquid volume, improves versatility and convenience, reduced spending after sale.
Accompanying drawing explanation
Fig. 1 is the structural representation of the liquid level display that provides of the utility model;
Fig. 2 is the schematic diagram of the upper cover of the liquid level display that provides of the utility model;
Fig. 3 is the structural representation of circuit board in the liquid level display that provides of the utility model.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Referring to Fig. 1-3, Fig. 1 is the structural representation of the liquid level display that provides of the utility model, the schematic diagram of the upper cover that Fig. 2 is liquid level display, and Fig. 3 is the structural representation of the circuit board of the liquid level display that provides of the utility model.
As shown in the figure, the liquid level display that the utility model provides comprises: drain pan 10, upper cover 30, circuit board 20(Fig. 1 do not show), battery 40,
Wherein, described circuit board 20, battery 40 are contained in the space that described drain pan 10 and upper cover 30 surround, and comprise processor 21, signal deteching circuit 22, display screen 23 and key circuit 24 on described circuit board 20.On battery 40, be provided with power switch 41, user can open control battery 40 by power switch 41 and outwards discharge.
Described signal deteching circuit 22 is connected between described processor 21 and the liquid level sensor 500 of gas cylinder, and described battery 40, key circuit 24, display screen 23 are all connected with described processor 21.Wherein, key circuit 24 comprises button, empty bottle button and full bottle button is set, and then realizes vehicle-mounted bottle is carried out to empty bottle, full bottle calibration.Display screen 23 is specifically as follows LCDs.
The liquid level display that the present embodiment provides in use, built-in battery 40 provides electric energy for the element of the circuit board 20 in liquid level display, signal deteching circuit 22 is for the capacitance signal of liquid level sensor 500 inputs is transformed into digital signal input processor 21, and processor 21 carries out after signal is processed directly showing vehicle-mounted bottle liquid volume and other parameters (comprising class of liquids, capacitance etc.) by display screen 23.Compare with liquid level display of the prior art, the liquid level display that the utility model provides is from charged pool, and then facilitates user to check at any time a bottle interior liquid volume, improves versatility and convenience, reduced spending after sale.
Continuation, referring to Fig. 1, is provided with two circuit input holes 13 and circuit delivery outlet 14 on the described drain pan 10 of the liquid level display that the utility model provides, the signal wire of liquid level sensor can be inner by circuit input hole 13 input liquid level displays.
In the utility model embodiment, between drain pan 10 and upper cover 30, be connected by screw, above cover and be provided with corresponding screw hole 31, described circuit board 20 is fixed on the inwall of described drain pan 10 by screw 11.In addition, power switch 41 is protruding from the sidewall of described drain pan 10, and user-friendly power switch 41, is switched on or switched off power supply.
Continuation is referring to Fig. 3, in the liquid level display providing at the utility model, described battery 40 is rechargeable battery, on described battery 40, be also provided with charge port 42, described liquid level display also comprises battery charger 43, and described battery charger 43 is for being connected and described rechargeable battery is charged with described charge port 42.
In sum, compare with liquid level display of the prior art, the liquid level display tool that the utility model provides has the following advantages:
1. adopt capacitor design on a large scale, during debugging, after switching on power, only need press control button (button, empty bottle button and full bottle button are set) and complete empty bottle, full bottle setting;
2. liquid level display can directly be measured the capacitance of vehicle-mounted bottle inside liquid level sensor, can monitor at any time and consult current capacitance;
3. carry high capacity cell, facilitate user to check at any time a bottle interior liquid volume.
4. a bottle internal volume arranges function, can be applicable to user's plurality of specifications bottle;
5. temperature compensation function, in the processor 21 of liquid level display, built-in temperature is measured and compensation software, when temperature changes, remains the precision of measurement;
6. compatible strong, liquid level display measurement range is wide, can the gas cylinder of compatible all size and the liquid level sensor capacitance of other producers, installation site, gas cylinder signal wire joint.
The utility model finally also provides a kind of liquid level detection system, comprises liquid level sensor and liquid level display as above.Liquid level display in liquid level detection system is from charged pool, and then facilitates user to check at any time a bottle interior liquid volume, improves versatility and convenience, reduced spending after sale.
Should be understood that; these are only preferred embodiment of the present utility model; can not therefore limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. a liquid level display, is characterized in that, comprising: drain pan, upper cover, circuit board, battery;
Described circuit board, battery accommodating, in the space that described drain pan and upper cover surround, comprise processor, signal deteching circuit, key circuit and display screen on described circuit board;
Described signal deteching circuit is connected between described processor and the liquid level sensor of gas cylinder, the signal of described liquid level sensor input is changed in the described processor of rear input, described battery, key circuit, display screen are all connected with described processor, on described battery, are provided with power switch.
2. liquid level display according to claim 1, is characterized in that,
Described key circuit comprises empty bottle button, full bottle button and button is set.
3. liquid level display according to claim 2, is characterized in that,
Described battery is rechargeable battery, is also provided with charge port on described battery, and described liquid level display also comprises battery charger, and described battery charger is for being connected with described charge port and described rechargeable battery being charged.
4. liquid level display according to claim 2, is characterized in that, described display screen is LCDs.
5. liquid level display according to claim 4, is characterized in that,
Described power switch is protruding from the sidewall of described drain pan.
6. according to the liquid level display described in claim 1 to 5 any one, it is characterized in that,
Between described drain pan and upper cover, be connected by screw, described circuit board is fixed by screws on the inwall of described drain pan.
7. a liquid level detection system, comprises liquid level sensor, it is characterized in that, also comprises the liquid level display as described in claim 1 to 6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320180830.8U CN203396448U (en) | 2013-04-12 | 2013-04-12 | Liquid level display and liquid level detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320180830.8U CN203396448U (en) | 2013-04-12 | 2013-04-12 | Liquid level display and liquid level detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396448U true CN203396448U (en) | 2014-01-15 |
Family
ID=49907972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320180830.8U Expired - Fee Related CN203396448U (en) | 2013-04-12 | 2013-04-12 | Liquid level display and liquid level detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203396448U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066199A (en) * | 2016-05-30 | 2016-11-02 | 深圳市佳盈嵘技术开发有限公司 | A kind of long range positioning LNG liquidometer |
| CN108534865A (en) * | 2018-05-11 | 2018-09-14 | 上海航天设备制造总厂有限公司 | A kind of liquid level measuring system suitable for cryogenic liquid storage tank |
-
2013
- 2013-04-12 CN CN201320180830.8U patent/CN203396448U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066199A (en) * | 2016-05-30 | 2016-11-02 | 深圳市佳盈嵘技术开发有限公司 | A kind of long range positioning LNG liquidometer |
| CN108534865A (en) * | 2018-05-11 | 2018-09-14 | 上海航天设备制造总厂有限公司 | A kind of liquid level measuring system suitable for cryogenic liquid storage tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103257277B (en) | Multifunctional virtual instrument based on constant flow source and control method | |
| CN103926553A (en) | Self-service single-phase electric energy meter error calibration device and method | |
| CN106405460A (en) | Electronic instrument voltage detection calibration system and calibration method | |
| CN203396448U (en) | Liquid level display and liquid level detection system | |
| CN106370273A (en) | Automobile fuel tank fuel capacity calibration system and calibration method | |
| CN103499380A (en) | Cell weight detection system | |
| CN202533564U (en) | Electric quantity indicating device | |
| US20130158912A1 (en) | Apparatus for Measuring the State of Health of a Cell Pack | |
| CN203069664U (en) | Three-phase capacitance divider measuring device | |
| CN202794340U (en) | High-voltage digital type insulation resistance tester | |
| CN203287078U (en) | Liquid level transmitter and liquid level detecting system | |
| CN110672900A (en) | Low-power digital multifunctional meter | |
| CN202494728U (en) | low-voltage nuclear phase device | |
| CN202511858U (en) | Device for measuring sulfur hexafluoride gas mass | |
| CN205539435U (en) | On --spot check gauge of multi -functional electric energy meter | |
| CN211528517U (en) | Low-power digital multifunctional meter | |
| CN203163823U (en) | Liquid level transmitter for liquefied natural gas | |
| CN103575997A (en) | High-voltage digital insulation resistance tester | |
| CN202748466U (en) | Detection system for valve regulated sealed lead-acid battery | |
| CN202033135U (en) | Digital pressure gauge | |
| CN202582655U (en) | Electronic liquid level meter | |
| CN106092281A (en) | A kind of intelligent electronic-scale system | |
| CN202256238U (en) | Portable edible oil quality detection device | |
| CN105527006A (en) | Multipoint electronic platform scale with adjustable mesas and anti-electromagnetic interference function | |
| CN205880184U (en) | Calibration equipment is synthesized to portable arrester discharge counter |
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: 20140115 Termination date: 20180412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |