CN204347637U - Water dispenser pressure charging system - Google Patents
Water dispenser pressure charging system Download PDFInfo
- Publication number
- CN204347637U CN204347637U CN201520025130.0U CN201520025130U CN204347637U CN 204347637 U CN204347637 U CN 204347637U CN 201520025130 U CN201520025130 U CN 201520025130U CN 204347637 U CN204347637 U CN 204347637U
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- Prior art keywords
- water dispenser
- operational amplifier
- pump motor
- processor
- water
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Abstract
The utility model discloses a kind of water dispenser pressure charging system, this system comprises: operational amplifier; Processor; Relay; Pump motor; Sample resistance; Described operational amplifier, processor, relay, pump motor are connected with sample resistance sequential series; The in-phase input end of described operational amplifier is connected with described sample resistance one end near described pump motor, and output terminal is connected with described processor, and reverse input end is connected with the earth; Described processor obtains the output current value of operational amplifier; The size of more described output current value and predetermined current threshold, to determine whether water dispenser has water; When described output current value is greater than described predetermined current threshold, when determining that water dispenser has water, Control pump motor is utilized to perform blower operations.The utility model adopts the operational amplifier of low cost to replace the microswitch of high cost, to efficiently solve in prior art because microswitch cost is higher, improves the problem of the cost of water dispenser.
Description
Technical field
The utility model relates to water dispenser technical field, particularly relates to a kind of water dispenser pressure charging system.
Background technology
Normally, in order to ensure water dispenser electrical safety in use, when there being water, the processor in water dispenser pressure charging system can control pump motor and carry out blower operations, otherwise, when anhydrous, then do not perform blower operations.
At present, in existing water dispenser pressure charging system, be usually applied on microswitch by hydraulic pressure, when hydraulic pressure is less than default hydraulic pressure threshold value, then think anhydrous, now, microswitch switches to off-state from closure state, stops blower operations to make pump motor.Wherein, whether processor is closed by detection microswitch defines water or anhydrous, particularly, thinks there is water when microswitch closes.But, because microswitch cost is higher, improve the cost of water dispenser.
Utility model content
In view of this, the utility model provides a kind of water dispenser pressure charging system, to solve in prior art because microswitch cost is higher, improves the problem of the cost of water dispenser.
For solving the problems of the technologies described above, the utility model provides a kind of water dispenser pressure charging system, comprising:
Operational amplifier;
Processor;
Relay;
Pump motor;
Sample resistance;
Described operational amplifier, processor, relay, pump motor are connected with sample resistance sequential series;
The in-phase input end of described operational amplifier is connected with described sample resistance one end near described pump motor, and output terminal is connected with described processor, and reverse input end is connected with the earth;
One end that described sample resistance deviates from described pump motor is connected with the earth;
Described processor obtains the output current value of operational amplifier; The size of more described output current value and predetermined current threshold, to determine whether water dispenser has water; When described output current value is greater than described predetermined current threshold, when determining that water dispenser has water, Control pump motor is utilized to perform blower operations; Otherwise, do not control to perform blower operations.
Preferably, also comprise:
Be arranged at the first resistance between described in-phase input end and described sample resistance.
Preferably, also comprise:
Be arranged at the second resistance between described reverse input end and described the earth.
Preferably, also comprise:
The alarm be connected with described processor;
When determining that water dispenser is anhydrous, controlled to send anhydrous warning by described processor.
Preferably, described processor is single-chip microcomputer.
Above in water dispenser pressure charging system provided by the utility model, because the operate power of pump motor can reduce with the minimizing of rate of water added, the electric current flowing through pump motor also can reduce thereupon, thus the electric current flowing through sample resistance also reduces, the current value that the in-phase input end of operational amplifier is got from this sample resistance end also reduces, the output current value of the operational amplifier that such processor gets also can correspondingly reduce, in course of normal operation, processor compares the size of output current value and predetermined current threshold in real time, when described output current value is greater than described predetermined current threshold, when determining that water dispenser has water, Control pump motor is utilized to perform blower operations.In technique scheme, water or anhydrous state is had to determine whether on the basis of supercharging in water dispenser pressure charging system according to water dispenser, the operational amplifier that have employed low cost replaces the microswitch of high cost, to efficiently solve in prior art because microswitch cost is higher, improve the problem of the cost of water dispenser.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structural representation of a kind of water dispenser pressure charging system of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Core of the present utility model is to provide a kind of water dispenser pressure charging system, to solve in prior art because microswitch cost is higher, improves the problem of the cost of water dispenser.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to figure 1, show the structural representation of a kind of water dispenser pressure charging system of the utility model embodiment, this pressure charging system specifically can comprise as follows:
Operational amplifier 100;
Processor 101;
Preferably, described processor 101 is single-chip microcomputer, namely MCU;
In the utility model, the model the utility model as above-mentioned operational amplifier 100 and single-chip microcomputer does not do considered critical, just all can adopt as long as can realize the technical solution of the utility model.
Relay J;
Pump motor M;
Sample resistance R;
Described operational amplifier 100, processor 101, relay J, pump motor M are connected with sample resistance R sequential series;
The in-phase input end of described operational amplifier 100 is connected near one end of described pump motor M with described sample resistance R, and output terminal is connected with described processor 101, and reverse input end is connected with the earth;
One end that described sample resistance R deviates from described pump motor M is connected with the earth;
In practical application, operational amplifier 100 connects corresponding positive-negative power, such as VCC and ground connection, relay J connects corresponding power supply, such as V+, because the operate power of pump motor M can reduce with the minimizing of rate of water added, the electric current flowing through pump motor M also can reduce thereupon, thus the electric current flowing through sample resistance R also reduces, make the in-phase input end of operational amplifier 100 hold the current value got also to reduce from this sample resistance R, the output current value of the operational amplifier 100 that such processor 101 gets also can correspondingly reduce;
In course of normal operation, the output current value of described processor 101 Real-time Obtaining operational amplifier 100; The size of more described output current value and predetermined current threshold in real time, to determine whether water dispenser has water; When described output current value is greater than described predetermined current threshold, when determining that water dispenser has water, utilize relay J to control pump motor M and perform blower operations; Otherwise, when namely determining that water dispenser is anhydrous, do not control to perform blower operations.
It should be noted that, in the utility model, predetermined current threshold is not when preferably water dispenser just in time will have water, the output current value of the operational amplifier 100 caused by electric current that the real power of pump motor M produces;
Also it should be noted that, in the utility model, have water, anhydrous be not an absolute concept, that is, can be in water dispenser also there there is no a water, think anhydrous; Also can be, when surplus water is lower than said preset amount of water lower limit in water dispenser, thinks anhydrous, otherwise think there is water; The utility model does not do considered critical, and those skilled in the art specifically can set according to actual conditions.
When manufacturing production water dispenser pressure charging system provided by the utility model, in order to ensure that processor 101 is operated in normal range of current, under the prerequisite that the enlargement factor of operational amplifier 100 is certain, the resistance size of sample resistance R and the rated power size of pump motor M will adapt, when the rated power height of the pump motor M adopted, the resistance of sample resistance R will adapt smaller, otherwise, when the rated power of pump motor M is low, the resistance of sample resistance R will adapt larger; Certainly, also can not change the resistance of sample resistance R, adjust the enlargement factor of operational amplifier 100 adaptably; The above-mentioned adjustment process related to, those skilled in the art with reference to prior art, can repeat no more herein;
In the utility model, in order to ensure pressure charging system security in the course of the work, preferably, also comprise:
Be arranged at the first resistance R1 between described in-phase input end and described sample resistance R.
Be arranged at the second resistance R2 between described reverse input end and described the earth.
In the utility model, preferably, above-mentioned pressure charging system also comprises:
The alarm be connected with described processor 101;
When determining that water dispenser is anhydrous, controlled to send anhydrous warning, so that user's Timeliness coverage water dispenser is anhydrous by described processor 101.
In technique scheme, water or anhydrous state is had to determine whether on the basis of supercharging in water dispenser pressure charging system according to water dispenser, the operational amplifier 100 that have employed low cost replaces the microswitch of high cost, to efficiently solve in prior art because microswitch cost is higher, improve the problem of the cost of water dispenser.
Above water dispenser pressure charging system provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands system of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (5)
1. a water dispenser pressure charging system, is characterized in that, comprising:
Operational amplifier;
Processor;
Relay;
Pump motor;
Sample resistance;
Described operational amplifier, processor, relay, pump motor are connected with sample resistance sequential series;
The in-phase input end of described operational amplifier is connected with described sample resistance one end near described pump motor, and output terminal is connected with described processor, and reverse input end is connected with the earth;
One end that described sample resistance deviates from described pump motor is connected with the earth;
Described processor obtains the output current value of operational amplifier; The size of more described output current value and predetermined current threshold, to determine whether water dispenser has water; When described output current value is greater than described predetermined current threshold, when determining that water dispenser has water, Control pump motor is utilized to perform blower operations; Otherwise, do not control to perform blower operations.
2. the system as claimed in claim 1, is characterized in that, also comprises:
Be arranged at the first resistance between described in-phase input end and described sample resistance.
3. the system as claimed in claim 1, is characterized in that, also comprises:
Be arranged at the second resistance between described reverse input end and described the earth.
4. the system as claimed in claim 1, is characterized in that, also comprises:
The alarm be connected with described processor;
When determining that water dispenser is anhydrous, controlled to send anhydrous warning by described processor.
5. the system as claimed in claim 1, is characterized in that, described processor is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025130.0U CN204347637U (en) | 2015-01-14 | 2015-01-14 | Water dispenser pressure charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025130.0U CN204347637U (en) | 2015-01-14 | 2015-01-14 | Water dispenser pressure charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204347637U true CN204347637U (en) | 2015-05-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520025130.0U Active CN204347637U (en) | 2015-01-14 | 2015-01-14 | Water dispenser pressure charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204347637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536476A (en) * | 2015-01-14 | 2015-04-22 | 浙江朗诗德健康饮水设备股份有限公司 | Pressurization method and system for water dispenser |
| CN110342612A (en) * | 2019-08-22 | 2019-10-18 | 广东叮咚净水科技有限公司 | The water shortage detection device of water purifier |
-
2015
- 2015-01-14 CN CN201520025130.0U patent/CN204347637U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536476A (en) * | 2015-01-14 | 2015-04-22 | 浙江朗诗德健康饮水设备股份有限公司 | Pressurization method and system for water dispenser |
| CN110342612A (en) * | 2019-08-22 | 2019-10-18 | 广东叮咚净水科技有限公司 | The water shortage detection device of water purifier |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |