CN208190625U - The control system of electric appliance and touch key-press - Google Patents
The control system of electric appliance and touch key-press Download PDFInfo
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- CN208190625U CN208190625U CN201820708901.XU CN201820708901U CN208190625U CN 208190625 U CN208190625 U CN 208190625U CN 201820708901 U CN201820708901 U CN 201820708901U CN 208190625 U CN208190625 U CN 208190625U
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- touch key
- press
- controller
- control system
- power supply
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Abstract
The utility model discloses the control system of a kind of electric appliance and touch key-press, the control system, comprising: mechanical light current switch and touch key-press controller between power supply and the positive and negative anodes for being parallel to power supply；Power supply provides operating voltage for exporting the first DC voltage for touch key-press controller；Mechanical light current switch, is used in closure, so that short-circuit between the positive and negative anodes of power supply, touch key-press controller stops working, and when disconnecting, so that touch key-press controller restores normal work.Thereby, it is possible to efficiently solve the problem of touch key-press crashes by controlling mechanical light current switch, security appliance is greatly improved in this way and reliably resets work, cost is cheap, easy to use.
Description
Technical field
The utility model relates to technical field of electric appliances, in particular to the control system of a kind of touch key-press and have the control
The electric appliance of system.
Background technique
With the improvement of people's life quality, demand of the people to electrical function is also constantly increasing, for example, touching function
Energy, TFT (Thin Film Transistor, thin film transistor) display function etc..These high-end electric appliances can because
Certain factors (e.g., power network fluctuation, electrostatic, processing procedure, device aging etc.), and there is the problem of touch key-press crash, it needs at this time
It first by the appliance cut-off, then re-powers, the function of touch key-press could be restored.But when the electric appliance is to be embedded in other articles
When interior embedded product, if it is desired to being powered off, then needs to take out the electric appliance out of insertion article, could power off, then
It powers on, to restore the function of touch key-press, not only brings inconvenience to users in this way, also reduce the brand image of product.
Therefore, it is necessary to improve to the mode for solving touch key-press crash.
Utility model content
The utility model is intended at least solve one of the technical problem in above-mentioned technology to a certain extent.For this purpose, this reality
It is to propose a kind of control system of touch key-press can have by controlling mechanical light current switch with a novel purpose
Effect ground solves the problems, such as that touch key-press crashes, and greatly improves security appliance in this way and reliably resets work, and cost is cheap, letter
It is single easy-to-use.
Another purpose of the utility model is to propose a kind of electric appliance.
In order to achieve the above objectives, on the one hand the utility model proposes the control system of a kind of touch key-press, comprising: power supply
Mechanical light current switch and touch key-press controller between power supply and the positive and negative anodes for being parallel to the power supply；The power supply
Power supply provides operating voltage for exporting the first DC voltage for the touch key-press controller；The mechanical light current is opened
It closes, in closure, so that short-circuit between the positive and negative anodes of the power supply, the touch key-press controller to stop working；
When disconnecting, so that the touch key-press controller restores to work normally.
According to the utility model proposes touch key-press control system, pass through in parallel between the positive and negative anodes of power supply
Mechanical light current switch, in this way when mechanical light current closes the switch, so that short-circuit between the positive and negative anodes of power supply, touch is pressed
Key controller stops working, and when mechanical light current is switched and disconnected, so that touch key-press controller restores to work normally.It should
System can efficiently solve the problem of touch key-press crashes by controlling mechanical light current switch, greatly improve in this way
Security appliance reliably resets work, and cost is cheap, easy to use.
In addition, the control system of the touch key-press proposed according to the utility model example can also have following additional technology
Feature:
Specifically, the power supply includes: rectification filtering unit and the boosting that is electrically connected with the rectification filtering unit
Unit；The rectification filtering unit obtains the second direct current for carrying out rectification processing and filtering processing to the alternating voltage of input
Voltage；The boosting unit obtains first DC voltage for carrying out boosting processing to second DC voltage.
Further, the power supply further include: be electrically connected respectively with the rectification filtering unit and the boosting unit
The power-supply controller of electric connect；The control system further include: respectively with the anode of the touch key-press controller and the power supply control
The feedback unit of device electrical connection processed；The feedback unit, the voltage of the anode for detecting the touch key-press controller, and
When the voltage for detecting the anode of the touch key-press controller is zero, the first feedback signal of output to the power-supply controller of electric,
When the voltage for the anode for detecting the touch key-press controller is not zero, output the second feedback signal to the power supply is controlled
Device；The power-supply controller of electric, for when receiving first feedback signal, disconnecting the rectification filtering unit and the liter
Press the electrical connection between unit；When receiving second feedback signal, the rectification filtering unit and the boosting are connected
Electrical connection between unit.
Specifically, the boosting unit is transformer.
Specifically, the set-up of control system is in embedded product.
Specifically, the mechanical light current switch is set in the operation interface of the embedded product.
In order to achieve the above objectives, on the other hand the utility model proposes a kind of electric appliance comprising above-mentioned touch key-press
Control system.
The utility model proposes electric appliance can be mechanical by controlling by the control system of above-mentioned touch key-press
Light current switchs to efficiently solve the problem of touch key-press crashes, and greatly improves security appliance in this way and reliably resets work
Make, cost is cheap, easy to use.
In addition, can also have the following additional technical features: according to the electric appliance that the utility model example proposes
Specifically, the electric appliance is micro-wave oven.
Detailed description of the invention
Fig. 1 is the block diagram according to the control system of the touch key-press of the utility model embodiment；And
Fig. 2 is the schematic diagram according to the control system of the touch key-press of the utility model one embodiment.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
With reference to the accompanying drawings come describe according to the utility model embodiment propose touch key-press control system and have
The electric appliance of the control system.
Description the utility model embodiment touch key-press control system before, first under detailed analysis electric appliance touching
The phenomenon why key will appear crash touched.
Specifically, touch key-press be by detecting that the induced electricity capacitance of some key changes after, will output should
The determination signal that key is pressed.When the finger down of people or when close to key, the parasitic capacitance of human body will be coupled into static state
On capacitor, the final capacitance of key is made to become larger, the capacitance signal of the variation is input to single-chip microcontroller again and carries out signal conversion, will become
The capacitance of change is converted into the variable quantity of certain electric signal, then is detected by certain algorithm and judged the journey of this variable quantity
Degree is considered as finger down when this variable quantity is more than certain thresholding, to respond the corresponding function of electric appliance.Due to touching
Key does not have mechanical realization, and all detections are all the minor changes of electricity, so can be more sensitive to various interference.Work as the external world
Interference so that the variable quantity of some key is in overflow status for a long time, alternatively, touch key-press controller (such as touch chip)
When reference level changes, touch key-press is at crash state, at this time touch key-press controller need power off after again on
Electricity, with obtain current touch key state and stable reference voltage, restore the operation of touch key-press.
In the related technology, it solves the problems, such as that touch key-press crashes by the way of being restarted automatically, still, is answered actual
It not is most reliable with the mode in environment, being restarted automatically, and it is excessively complicated to be restarted automatically detection circuit, reduces complete machine
Reliability.Wherein, mode is restarted automatically by the way of disconnecting electric power loop, for capacitive or inductive load, is disconnected
The moment of electric power loop can generate biggish inverse electromotive force or electric current, be easy to the circuit of damage electric appliance in this way.If it is intended to
It solves to disconnect inverse electromotive force or electric current that circuit generates, then needs to increase corresponding antisurge impact circuit, can make so whole
The design of a electric appliance becomes complicated.In addition, for touch key-press controller, being needed since switch is connected in electric power loop
Consider the reliability of tandem tap, otherwise influences the normal work of touch key-press controller.
For this purpose, can be opened by controlling mechanical light current the utility model proposes a kind of control system of touch key-press
It closes to efficiently solve the problem of touch key-press crashes, greatly improves security appliance in this way and reliably reset work, cost
Cheaply, easy to use.
Fig. 1 is the schematic diagram according to the control system of the touch key-press of the utility model embodiment.
It should be noted that the control system of touch key-press, which may be disposed at, has touching in the embodiments of the present invention
It touches in the electric appliance of keypress function.
As shown in Figure 1, the control system of the touch key-press can include: power supply 10, mechanical light current switch 20 and touching
Touch button controller 30.
Wherein, mechanical light current switch 20 and touch key-press controller 30 are parallel between the positive and negative anodes of power supply 10.
Power supply 10 provides operating voltage for exporting the first DC voltage, for touch key-press controller 30.Mechanical light current switch
20, it is used in closure, so that short-circuit between the positive and negative anodes of power supply 10, touch key-press controller 30 stops working, and
When disconnecting, so that touch key-press controller 30 restores to work normally.Wherein, the mechanical light current switch 20 in the embodiment can
It is set in the operation interface of electric appliance.
Specifically, the utility model is one mechanical light current switch 20 of setting, machine in the operation interface of electric appliance
The effect of tool formula light current switch 20 is to force the power supply 10 of touch key-press controller 30 short circuit to carry out homing action.Referring to
Fig. 1, the mechanical light current switch 20 are connected in parallel between the positive and negative anodes of power supply 10 of touch key-press controller 30, i.e. VCC with
Between GND.
When touch key-press crashing the problem of, user presses the mechanical light current switch 20 in operation interface,
It exactly controls the mechanical light current switch 20 to be closed, the VCC of power supply 10 is to GND short circuit, touch key-press controller 30 at this time
Power supply 10 be cut off, touch key-press controller 30 stops working, and the charge of internal storage rapidly put over the ground by GND
Electricity, while power supply 10 also enters guard mode to GND short circuit because of VCC, so that short circuit current levels off to 0 ampere, to protect
Shield touch key-press controller 30 is not damaged.When user by operation interface mechanical light current switch 20 unclamp, that is to say
When controlling the mechanical light current switch 20 disconnection, power supply 10 will move out guard mode, the power supply of touch key-press controller 30
Power supply 10 and touch key-press restore normal.
Also, since mechanical light current switch 20 is the positive and negative anodes for being connected in parallel on the power supply 10 of touch key-press controller 30
Between, it is not connected in the current supply circuit of touch key-press controller 30, therefore, the reliability of mechanical light current switch is not
Influence the normal work of touch key-press controller.
To sum up, the control system of the touch key-press of the utility model embodiment can pass through letter when touch key-press crashes
The mode for singly pressing mechanical light current switch can be mentioned greatly in this way to efficiently solve the problem of touch key-press crashes
It rises security appliance and reliably resets work and user experience, and cost is cheap, it is easy to use.
One embodiment according to the present utility model, as shown in Fig. 2, power supply 10 can include: rectification filtering unit 11
With boosting unit 12.Rectification filtering unit 11 is used to carry out the alternating voltage of input rectification processing and filtering processing, obtains the
Two DC voltages, boosting unit 12 are electrically connected with rectification filtering unit 11, and boosting unit 12 is used to carry out the second DC voltage
Boosting processing, obtains the first DC voltage.Wherein, boosting unit 12 can be transformer.
Further, one embodiment according to the present utility model, as shown in Fig. 2, power supply 10 may also include that difference
The power-supply controller of electric 13 being electrically connected with rectification filtering unit 11 and boosting unit 12.Above-mentioned control system may also include that difference
The feedback unit 40 being electrically connected with the anode and power-supply controller of electric 13 of touch key-press controller 30, feedback unit 40 is for detecting touching
The voltage of the anode of button controller 30 is touched, and when the voltage for the anode for detecting touch key-press controller 30 is zero, output
First feedback signal is exported to power-supply controller of electric 13 when the voltage for the anode for detecting touch key-press controller 30 is not zero
Second feedback signal is to power-supply controller of electric 13.Power-supply controller of electric 13 is used for when receiving the first feedback signal, disconnects rectification filter
Electrical connection between wave unit 11 and boosting unit 12；When receiving the second feedback signal, 11 He of rectification filtering unit is connected
Electrical connection between boosting unit 12.
Specifically, when the touch key-press of electric appliance is in normal condition, alternating current L, N are by the rectification filter of rectification filtering unit 11
After wave, the second DC voltage is obtained, under the control of power-supply controller of electric 13, boosting unit 12 (such as transformer) is to the second direct current
Pressure carries out boosting processing, obtains the first DC voltage, and be supplied to touch key-press controller 30.
When the touch key-press of electric appliance is in crash state, user presses the mechanical light current switch 20 in operation interface
Under, namely the mechanical closure of light current switch 20 of control, the VCC of power supply 10 detects GND short circuit, feedback unit 40 at this time
The voltage of the anode of touch key-press controller 30 is zero, and feedback unit 40 exports the first feedback signal to power-supply controller of electric at this time
13.Power-supply controller of electric 13 disconnects the electricity between rectification filtering unit 11 and boosting unit 12 when receiving the first feedback signal
Connection, so that power-supply controller of electric 13 controls power supply 10 and enters short circuit protection mode, short circuit current levels off to 0 ampere, to protect
Shield touch key-press controller 30 is not damaged.
When user disconnects mechanical light current switch 20 release in operation interface, namely the mechanical light current switch 20 of control
When, feedback unit 40 detects that the voltage of the anode of touch key-press controller 30 is not zero, the output of feedback unit 40 at this time second
Feedback signal is to power-supply controller of electric 13.Power-supply controller of electric 13 connects rectification filtering unit 11 when receiving the second feedback signal
Electrical connection between boosting unit 12, so that power-supply controller of electric 13 controls power supply 10 and exits short circuit protection mode, at this time
Touch key-press controller 30 works normally.
A mechanical light current switch is arranged in the utility model in the operation interface of electric appliance as a result, which is to reset
Switch, and be connected in parallel between the positive and negative anodes of power supply, using power supply short circuit protection mode, realize what touch key-press resetted
Function.It can solve the problems, such as that touch key-press crashes by way of pressing mechanical light current switch in this way, so as to pole
The earth promotes security appliance and reliably resets work and user experience, and cost is cheap, easy to use.
In some embodiments of the utility model, the control system of touch key-press be may be disposed in embedded product.Its
In, embedded product, which refers to, is embedded in electric appliance in other articles, such as micro-wave oven, electromagnetic oven are embedded in wall or dedicated cabinet
Deng to save space.
As a specific example, when the set-up of control system of touch key-press is in embedded product, mechanical light current
Switch 20 may be disposed in the operation interface of embedded product.In this way the problem of the touch key-press of embedded product crashes
When, it is repaired without taking out embedded product from the object of insertion, it is only necessary to which pressing mechanical light current switch can
Solve the problems, such as that touch key-press crashes, so that not only insertion article bring damage can be given to avoid when taking out embedded product
Wound, and maintenance cost is cheap, it is easy to use, and then improve the installation reliability and user experience of embedded product.
In conclusion according to the utility model proposes touch key-press control system, by the positive and negative of power supply
Parallel connection machinery type light current switchs between pole, in this way when mechanical light current closes the switch, so that between the positive and negative anodes of power supply
Short circuit, touch key-press controller stop working, and when mechanical light current is switched and disconnected, so that touch key-press controller restores
It works normally.The system can solve the problems, such as that touch key-press crashes by controlling mechanical light current switch, so greatly
It improves security appliance and reliably resets work, cost is cheap, easy to use.
Based on the above embodiment, the utility model embodiment also proposed a kind of electric appliance comprising above-mentioned touch key-press
Control system.
In the embodiments of the present invention, electric appliance can be the products such as micro-wave oven, oven.
The electric appliance that the utility model embodiment proposes can pass through control by the control system of above-mentioned touch key-press
Mechanical light current switchs to solve the problems, such as that touch key-press crashes, and greatly improves security appliance in this way and reliably resets work
Make, cost is cheap, easy to use.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (8)
1. a kind of control system of touch key-press characterized by comprising power supply and be parallel to the power supply just
Mechanical light current switch and touch key-press controller between cathode；
The power supply provides operating voltage for exporting the first DC voltage for the touch key-press controller；
The mechanical light current switch, is used in closure, so that short-circuit between the positive and negative anodes of the power supply, the touch
Button controller stops working；When disconnecting, so that the touch key-press controller restores to work normally.
2. control system according to claim 1, which is characterized in that the power supply include: rectification filtering unit and
The boosting unit being electrically connected with the rectification filtering unit；
The rectification filtering unit obtains the second direct current for carrying out rectification processing and filtering processing to the alternating voltage of input
Voltage；
The boosting unit obtains first DC voltage for carrying out boosting processing to second DC voltage.
3. control system according to claim 2, which is characterized in that the power supply further include: respectively with it is described whole
Flow the power-supply controller of electric of filter unit and boosting unit electrical connection；
The control system further include: be electrically connected respectively with the anode of the touch key-press controller and the power-supply controller of electric
Feedback unit；
The feedback unit, for detect the touch key-press controller anode voltage, and detect it is described touch by
When the voltage of the anode of key controller is zero, the first feedback signal is exported to the power-supply controller of electric, is detecting the touch
When the voltage of the anode of button controller is not zero, the second feedback signal of output to the power-supply controller of electric；
The power-supply controller of electric, for when receiving first feedback signal, disconnecting the rectification filtering unit and described
Electrical connection between boosting unit；When receiving second feedback signal, the rectification filtering unit and the liter are connected
Press the electrical connection between unit.
4. control system according to claim 2 or 3, which is characterized in that the boosting unit is transformer.
5. control system according to claim 1, which is characterized in that the set-up of control system is in embedded product.
6. control system according to claim 5, which is characterized in that the mechanical light current switch is set to the insertion
In the operation interface of formula product.
7. a kind of electric appliance, which is characterized in that the control system including touch key-press as claimed in any one of claims 1 to 6.
8. electric appliance according to claim 7, which is characterized in that the electric appliance is micro-wave oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820708901.XU CN208190625U (en) | 2018-05-10 | 2018-05-10 | The control system of electric appliance and touch key-press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820708901.XU CN208190625U (en) | 2018-05-10 | 2018-05-10 | The control system of electric appliance and touch key-press |
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| Publication Number | Publication Date |
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| CN208190625U true CN208190625U (en) | 2018-12-04 |
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| CN201820708901.XU Active CN208190625U (en) | 2018-05-10 | 2018-05-10 | The control system of electric appliance and touch key-press |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11829563B2 (en) | 2021-10-18 | 2023-11-28 | Electrolux Home Products, Inc. | Method for operating a safety-critical function using a touch sensor |
-
2018
- 2018-05-10 CN CN201820708901.XU patent/CN208190625U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11829563B2 (en) | 2021-10-18 | 2023-11-28 | Electrolux Home Products, Inc. | Method for operating a safety-critical function using a touch sensor |
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