CN206348294U - Touch sensible examines water circuit - Google Patents

Abstract

Water circuit is examined the utility model discloses a kind of touch sensible, including water storage unit and circuit substrate, the capacitance inductor for the waveform that respective frequencies are produced according to the change of capacitance is provided with circuit substrate, for judging the main control chip and the signal output apparatus according to the corresponding level of the judged result of main control chip output for whether having water in water storage unit according to the waveform produced by capacitance inductor, capacitance inductor is connected to the bottom of water storage unit, the port of capacitance inductor is connected to the signal input pin of main control chip, signal output apparatus is connected to the signal output pin of main control chip, the power pins of main control chip are connected together with power supply, the grounding pin ground connection of main control chip, water can accurately have been detected whether, and it can substantially reduce the cost of circuit, simplify the structure of inspection water, so that dismounting facility, be conducive to the production of product.

Description

Touch sensible examines water circuit

Technical field

The utility model is related to the detection field for determining whether water, especially a kind of touch sensible inspection water circuit.

Background technology

Current inspection water mode mainly has probe to examine the modes such as water, level sensor inspection water and tongue tube inspection water, but these The application cost of mode is high, and needs to use very long connection line during its installation, in order to coordinate long connection line, easily So that the structure of product is restricted, and dismounts complexity, it is unfavorable for effective production of product.

Utility model content

To solve the above problems, the purpose of this utility model is to provide a kind of touch sensible inspection water circuit, can be accurate Water has been detected whether, and can substantially reduce the cost of circuit, has simplified the structure of inspection water so that dismounting facility, has been conducive to production The production of product.

The technical scheme that the invention for solving the technical problem is used is：

Touch sensible examines water circuit, including for placing the water storage unit of water and for detecting whether there is the circuit base of water The capacitance inductor for the waveform that respective frequencies are produced according to the change of capacitance is provided with plate, circuit substrate, is used for Waveform according to being produced by capacitance inductor judges whether there is the main control chip of water in water storage unit and according to main control chip The signal output apparatus of judged result output correspondence level, capacitance inductor is connected to the bottom of water storage unit, condenser type sense The port of device is answered to be connected to the signal input pin of main control chip, the output end of signal output apparatus is connected to the letter of main control chip Number output pin, power pins and the power supply of main control chip are connected together, the grounding pin ground connection of main control chip.

Further, be connected with the first electric capacity between the power pins and grounding pin of main control chip, main control chip it is external Capacitor pin passes through the second capacity earth.

Further, the model KF8S1023 of main control chip.

Further, capacitance inductor is touch spring.

Further, signal output apparatus is binding post.

The beneficial effects of the utility model are：Touch sensible examines water circuit, and main control chip is according to the electricity of capacitance inductor The change of capacitance, is able to detect that the waveform of different frequency, and capacitance inductor can be according to the change of the weight of water storage unit Change, change its initial capacitance value to compress capacitance, therefore main control chip can be examined according to initial capacitance value and compression capacitance The waveform of two different frequencies is measured, by the way that the waveform that detects and the reference waveform being stored among main control chip are carried out pair Than used because touch sensible examines the simple in construction of water circuit so as to accurately judge whether there is water among water storage unit Number of devices it is few, therefore, it is possible to substantially reduction circuit cost, simplify inspection water structure so that dismounting facility, be conducive to production The production of product.

Brief description of the drawings

The utility model is described in further detail with example below in conjunction with the accompanying drawings.

Fig. 1 is the circuit theory diagrams that touch sensible of the present utility model examines water circuit.

Embodiment

Reference picture 1, touch sensible of the present utility model examines water circuit, including for placing the water storage unit of water and for examining Whether have the circuit substrate of water, waveform that respective frequencies are produced according to the change of capacitance is provided with circuit substrate if surveying Capacitance inductor K1, the master control for judging whether to have water in water storage unit by the capacitance inductor K1 waveforms produced for basis The chip U1 and signal output apparatus CN1, capacitance inductor K1 according to the corresponding level of main control chip U1 judged result output The bottom of water storage unit is connected to, capacitance inductor K1 port is connected to main control chip U1 signal input pin P1.6, Signal output apparatus CN1 output end OUT is connected to main control chip U1 signal output pin P2.1, main control chip U1 power supply Pin VCCP is connected together with power supply, main control chip U1 grounding pin GNDP ground connection.When there is no water in water storage unit, even It is connected on the K1 pressure by water storage unit own wt of capacitance inductor of water storage unit bottom, therefore capacitance inductor K1 is in original state, and capacitance inductor K1 now has an initial capacitance value, and capacitance inductor K1 port connects Main control chip U1 signal input pin P1.6 is connected to, because there is main control chip U1 signal input pin P1.6 detection to input The function of signal, therefore main control chip U1 is able to detect that by the waveform of the capacitance inductor K1 fixed frequency produced, Therefore main control chip U1 judges the waveform of this fixed frequency for anhydrous waveform, and the corresponding data storage of anhydrous waveform in the inner Among the memory space in portion, when the waveform produced by capacitance inductor K1 that main control chip U1 is detected is identical with anhydrous waveform When, then judge there is no water among current water storage unit.When being equipped with water in water storage unit, the electric capacity of water storage unit bottom is connected to Formula inductor K1, while the pressure and the pressure of the weight of water conducted oneself with dignity by water storage unit, therefore capacitance inductor K1 can quilt Compression, in compressive state, now, capacitance inductor K1 initial capacitance value is changed, and becomes compression capacitance, Now, main control chip U1 is able to detect that by the waveform of capacitance inductor K1 another fixed frequency produced, and this The data of anhydrous waveform among data corresponding to the waveform of the fixed frequency memory space internal with being stored in it are compared Compared with because waveform and the anhydrous waveform of the fixed frequency are differed, therefore main control chip U1 judges that the waveform of the fixed frequency is There is ripples shape, so as to be equipped with water among judging current water storage unit.Whether there is water to do among main control chip U1 is to water storage unit Go out after judgement, corresponding level value is exported by its signal output pin P2.1, such as when water storage unit has been judged as water When, main control chip U1 signal output pin P2.1 output low levels；For example when water storage unit is judged as anhydrous, master control core Piece U1 signal output pin P2.1 output high level.Because the signal that signal output apparatus CN1 is connected to main control chip U1 is defeated Go out pin P2.1, and signal output apparatus CN1 can be attached with the circuit with other functions, therefore as main control chip U1 When judging and exporting correspondence level value, signal output apparatus CN1 can be transferred to the correspondence level value with other work( The circuit of energy, so as to realize other functions according to the dress water state of water storage unit.Therefore, it is of the present utility model to touch sense The simple in construction of water circuit should be examined, used number of devices is also few, so as to significantly reduce the cost of circuit, simplifies inspection water Structure so that dismounting facility, be conducive to the production of product.

Wherein, reference picture 1, the first electric capacity is connected between main control chip U1 power pins VCCP and grounding pin GNDP C1, main control chip U1 external capacitor pin CAP are grounded by the second electric capacity C2.Main control chip U1 passes through its power pins VCCP Electric power loop is formed with grounding pin GNDP, so that main control chip U1 being capable of normal work.It is connected to main control chip U1's The first electric capacity C1 between power pins VCCP and grounding pin GNDP, can be filtered to the power supply for supplying main control chip U1 Ripple so that supply main control chip U1 power supply can totally be stablized, so that ensure that main control chip U1 can stably work, will not Appearance causes to detect wrongheaded situation due to job insecurity.Main control chip U1 passes through external capacitor pin CAP connections Second electric capacity C2 enables to main control chip U1 internal data processing procedure to stablize accurate, so as to ensure that master control core to ground Piece U1 will not cause to detect wrongheaded situation because of interior data processing error.

Wherein, main control chip U1 model KF8S1023, capacitance inductor K1 are touch spring, signal output apparatus CN1 is binding post.Model KF8S1023 main control chip U1 is 8 8-digit microcontrollers of low cost, can be detected exactly The waveform signal produced by capacitance inductor K1, therefore, it is possible to detect whether water is housed in water storage unit exactly.Touch Spring is to be exclusively used in the special purpose spring button that condenser type and single-chip microcomputer touch electric appliance, by be directly connected in circuit substrate it On, the device of detection part can be greatly saved, so as to greatly simplifie detection circuit so that dismounting facility, be conducive to The production of product.Binding post is used as signal to be capable of the device of compatible various different circuit substrates by the use of binding post Output device CN1, enables to touch sensible inspection water circuit of the present utility model to have good compatibility, so as to side Just it is connected with the circuit with other functions, so as to realize more difference in functionalitys.

Above is to it is of the present utility model it is preferable implementation illustrated, but the utility model be not limited to it is above-mentioned Embodiment, those skilled in the art can also make a variety of be equal on the premise of without prejudice to the utility model spirit Deformation is replaced, and these equivalent deformations or replacement are all contained in the application claim limited range.

Claims (5)

1. touch sensible examines water circuit, it is characterised in that：Including for placing the water storage unit of water and for detecting whether there is water Circuit substrate, the condenser type for the waveform that respective frequencies are produced according to the change of capacitance is provided with the circuit substrate Inductor（K1）, for according to by the capacitance inductor（K1）The waveform of generation judges whether there is water in the water storage unit Main control chip（U1）With according to the main control chip（U1）Judged result output correspondence level signal output apparatus （CN1）, the capacitance inductor（K1）It is connected to the bottom of the water storage unit, the capacitance inductor（K1）Port It is connected to the main control chip（U1）Signal input pin（P1.6）, the signal output apparatus（CN1）Output end（OUT） It is connected to the main control chip（U1）Signal output pin（P2.1）, the main control chip（U1）Power pins（VCCP）With Power supply is connected together, the main control chip（U1）Grounding pin（GNDP）Ground connection.

2. touch sensible according to claim 1 examines water circuit, it is characterised in that：The main control chip（U1）Power supply draw Pin（VCCP）And grounding pin（GNDP）Between be connected with the first electric capacity（C1）, the main control chip（U1）External capacitor pin （CAP）Pass through the second electric capacity（C2）Ground connection.

3. touch sensible according to claim 2 examines water circuit, it is characterised in that：The main control chip（U1）Model KF8S1023。

4. touch sensible according to claim 1 examines water circuit, it is characterised in that：The capacitance inductor（K1）It is tactile Touch spring.

5. touch sensible according to claim 1 examines water circuit, it is characterised in that：The signal output apparatus（CN1）For Binding post.