CN206223187U - Cabinet door detection means, switch detection circuit and retractable cabinet - Google Patents
Cabinet door detection means, switch detection circuit and retractable cabinet Download PDFInfo
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- CN206223187U CN206223187U CN201620894607.3U CN201620894607U CN206223187U CN 206223187 U CN206223187 U CN 206223187U CN 201620894607 U CN201620894607 U CN 201620894607U CN 206223187 U CN206223187 U CN 206223187U
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Abstract
A kind of cabinet door detection means, switch detection circuit and retractable cabinet, wherein, the switch detection circuit includes：Switch detection module, including signal transmitting terminal and signal receiving end, signal receiving end adjust state according to the signal for receiving the transmitting of signal transmitting terminal；Signal output part, is connected to the signal receiving end of switch detection module, for the corresponding level signal of State- output of the signal receiving end according to switch detection module.It is achieved thereby that being detected to cabinet door on off state by way of contactless electricity, relative to existing jogging switches measurement, mechanical loss can be reduced, so as to extend the service life of equipment.
Description
Technical field
The present invention relates to household appliance technical field, and in particular to a kind of cabinet door detection means, switch detection circuit and retractable
Cabinet.
Background technology
With the exploitation of dishwasher product at this stage, dish-washing machine is increasingly accepted by the public, but existing dish-washing machine is produced
Control design case of the product on cabinet door mostly use a normally opened microswitch or proximity switch, by cabinet door touch microswitch or
Proximity switch carrys out the shut-off of controlling switch, and then by the conversion of control circuit realiration low and high level, master chip is by detecting height
Open and the closing of electrical level judging cabinet door, carry out corresponding function execution.
In the prior art, mainly for the control of air-conditioner switch door or sliding door, in other household electrical appliance such as thermantidote
The upper main detection control realized to PTC, water tank, without embedded kitchen appliance cabinet door control is directed to, especially for knot
The dish-washing machine that structure attribute is paddled in itself.
Existing dish-washing machine gate is generally using microswitch control, and the switch of the cabinet door for microswitch each time
All be one-time mechanical loss, therefore its mechanical life also will turn into influence the dish-washing machine life-span the reason for one of.
The content of the invention
The technical problem to be solved in the present invention is that microswitch easily causes mechanical loss.
Therefore, according in a first aspect, the embodiment of the present invention provides a kind of switch detection circuit, including：
Switch detection module, including signal transmitting terminal and signal receiving end, signal receiving end are launched according to signal is received
Hold the signal adjustment state of transmitting；Signal output part, is connected to the signal receiving end of switch detection module, for being examined according to switch
Survey the corresponding level signal of State- output of the signal receiving end of module.
Further, power module includes：Gate-controlled switch, one end of gate-controlled switch is connected to dc source, other end connection
To the signal transmitting terminal for switching detection module, when the control end of gate-controlled switch receives significant level, turn on gate-controlled switch,
The signal transmitting terminal of switch detection module is put with the power delivery for providing dc source.
Further, the signal transmitting terminal of switch detection module includes：Light emitting diode, light emitting diode is connected to direct current
Between source and ground, the electrical source luminescent for responding dc source offer is believed to the signal receiving end launching light of switch detection module
Number；The signal receiving end for switching detection module includes：Induction transistor, one end of induction transistor is connected to dc source, sense
The other end of transistor is answered to be connected to signal output part；The signal transmitting of the control end inductive switch detection module of induction transistor
Hold one end and the other end of the optical signal ON/OFF induction transistor of transmitting.
Further, also include：First current limliting module, the electric current of light emitting diode is flowed through for limiting；It is connected on luminous two
Pole pipe institute is in the loop；And/or, the second current limliting module flows through the electric current of induction transistor for limiting；It is connected on sensing crystal
Pipe institute is in the loop
Further, also include：Filtration module, is connected between the other end of induction transistor and signal output part, is used for
Level signal is filtered.
Further, also include：3rd current limliting module, is connected on the control end institute of gate-controlled switch in the loop.
According to second aspect, there is provided a kind of cabinet door detection means, including：
Above-mentioned switch detection circuit；Signal stops module, is arranged on the signal transmitting terminal and signal of switch detection module
Between receiving terminal, for the signal for being stopped according to cabinet door on off state or permissive signal transmitting terminal is launched to signal receiving end.
According to the third aspect, there is provided a kind of retractable cabinet, including：
Folding cabinet body；
Cabinet door, can close with folding cabinet body and be connected, for being closed to folding cabinet body；
Above-mentioned switch detection circuit, is arranged in folding cabinet body or cabinet door；Switch detection circuit is accordingly set
In the cabinet door or body of folding cabinet, when cabinet door is closed to folding cabinet body, signal stops that module is located at switch and detects
Between the signal transmitting terminal and signal receiving end of module.
Further, signal stops that module is light barrier, is detachably secured in folding cabinet body or cabinet door.
Further, switch detection circuit is arranged on cabinet door side；Signal stops that module is arranged on folding cabinet body side.
Further, retractable cabinet is dish washing cupboard.
Technical solution of the present invention, has the following advantages that：
Cabinet door detection means provided in an embodiment of the present invention, switch detection circuit and retractable cabinet, by switching detection mould
The signal receiving end of block adjusts state when the signal of signal transmitting terminal transmitting is received, it is achieved thereby that by contactless electricity
Mode cabinet door on off state is detected, relative to existing jogging switches measurement, mechanical loss can be reduced, so as to prolong
The service life of equipment is grown.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of switch detection circuit schematic diagram in the embodiment of the present invention；
Fig. 2 is a kind of cabinet door detection means theory diagram in the embodiment of the present invention；
Fig. 3 a are a kind of schematic perspective view of retractable cabinet in the embodiment of the present invention；
Fig. 3 b are a kind of partial enlarged drawing of retractable cabinet in the embodiment of the present invention.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be with
It is two connections of element internal, can is wireless connection, or wired connection.For one of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
As long as additionally, technical characteristic involved in invention described below different embodiments non-structure each other
Can just be combined with each other into conflict.
In order to reduce mechanical loss when retractable cabinet door is switched, present embodiment discloses a kind of cabinet door detection means, open
Close detection circuit and retractable cabinet.
Fig. 1 is refer to, is a kind of switch detection circuit disclosed in the present embodiment, the switch detection circuit includes：Switch inspection
Module 2, power module 1 and signal output part 3 are surveyed, wherein：
Switch detection module 2 includes signal transmitting terminal and signal receiving end, and signal receiving end is launched according to signal is received
Hold the signal adjustment state of transmitting.In a particular embodiment, the signal transmitting terminal of switch detection module 2 is to switch detection module
During 2 signal receiving end transmission signal, when signal receiving end receives the signal of signal transmitting terminal transmitting, output has
Effect level (such as high level), when signal receiving end is not received by the signal of signal transmitting terminal transmitting, exports inactive level
(such as low level).
Power module 1 is connected to the signal transmitting terminal of switch detection module 2, is sent out for the signal to switch detection module 2
Penetrate end and dc source is provided.In the present embodiment, power module 1 can also be connected to controller, under the control of the controller, Xiang Kai
Close detection module 2 and dc source is provided.In a particular embodiment, controller can be the intelligent chips such as single-chip microcomputer, DSP.
Signal output part 3 is connected to the signal receiving end of switch detection module 2, for the letter according to switch detection module 2
The corresponding level signal of State- output of number receiving terminal.In the present embodiment, the output signal receiving terminal of signal output part 3 is electric accordingly
Put down to characterize current states of cabinet door, such as when signal output part 3 exports high level, characterize cabinet door and be currently at unlatching shape
State, when signal output part exports low level, then characterizes cabinet door and is currently at closed mode.Exported according to signal output part 3
The low state high of level signal can be operated accordingly.
In a particular embodiment, power module 1 includes：Gate-controlled switch, one end of gate-controlled switch is connected to dc source, separately
One end is connected to the signal transmitting terminal of switch detection module 2, when the control end of gate-controlled switch receives significant level, makes controllable
Switch conduction, the power delivery that dc source is provided is put the signal transmitting terminal of switch detection module 2.In specific embodiment,
Gate-controlled switch can realize that specifically, refer to Fig. 1, the gate-controlled switch is switching transistor T1 by switching transistor, its
Control end (such as base stage) is used to be connected to controller, and one end (such as emitter stage) of switching transistor T1 is used to be connected to direct current
Power supply, the other end (such as colelctor electrode) is used to be connected to the signal transmitting terminal of switch detection module 2；The control of switching transistor T1
Hold one end and the other end that switching transistor T1 is turned under the significant level that controller is provided, the electricity that dc source is provided
The signal transmitting terminal of switch detection module 2 is put in source transmission.In the present embodiment, dc source should be suitable for transistor and its
The power supply amplitude of its component work, by way of example, in the present embodiment, what dc source was provided is 5V dc sources.
In order to realize the protection to gate-controlled switch (such as switching transistor T1), in an alternate embodiment of the invention, switch inspection
Slowdown monitoring circuit can also include the 3rd current limliting module, be connected on the control end institute of the gate-controlled switch in the loop, for example, be connected to
Between the control end and controller of switching transistor T1, specifically, the 3rd current limliting module can be realized by resistance, for example
In Fig. 1 shown in R4, current-limiting protection can be carried out to the control end of switching transistor T1 by resistance R4.
In order to the non-contact switch that switch detection circuit is better achieved is detected, in a particular embodiment, the present embodiment
In disclosed switch detection circuit, the signal transmitting terminal for switching detection module 2 includes：Light emitting diode D1, light emitting diode D1
It is connected between dc source and ground, the electrical source luminescent for responding dc source offer connects to the signal of switch detection module 2
Receiving end launches optical signal.Specifically, the anode of light emitting diode D1 can be connected to the other end of switching transistor T1, and luminous two
The negative electrode of pole pipe D1 can be connected to the ground.
The signal receiving end for switching detection module 2 includes：Induction transistor Q1, one end of induction transistor Q1 is connected to electricity
Source module 1, the other end of induction transistor Q1 is connected to signal output part 3；The control end inductive switch inspection of induction transistor Q1
Survey one end and the other end of the optical signal ON/OFF induction transistor Q1 of the signal transmitting terminal transmitting of module 2.Specifically, when
When the control end of induction transistor Q1 senses optical signal, one end and the other end of induction transistor Q1 are turned on.
In order to realize the protection to light emitting diode D1 and induction transistor Q1 respectively, in an alternate embodiment of the invention, this is opened
Closing detection circuit can also include：First current limliting module, the electric current of light emitting diode D1 is flowed through for limiting, and is connected on luminous two
Pole pipe D1 institutes in the loop, for example, are connected between light emitting diode D1 and ground, and specifically, the first current limliting module can pass through
Resistance realizes, such as in Fig. 1 shown in R1, current-limiting protection can be carried out to light emitting diode D1 by resistance R1.The switch is examined
Slowdown monitoring circuit can also include：Second current limliting module, the electric current of induction transistor Q1 is flowed through for limiting；It is connected on induction transistor
Q1 institutes in the loop, for example, are connected between the other end of induction transistor Q1 and ground, and specifically, the second current limliting module can be with
Realized by resistance, such as in Fig. 1 shown in R2, current limliting guarantor can be carried out to the other end of induction transistor Q1 by resistance R2
Shield.
In an alternate embodiment of the invention, the switch detection circuit can also include：Filtration module, is connected to induction transistor Q1
The other end and signal output part 3 between, for being filtered to level signal.Specifically, the filtration module can be by RC
Circuit realizes that refer to Fig. 1, the filtration module includes that resistance R3 and electric capacity C1, resistance R3 are connected to induction transistor Q1's
Between the other end and signal output part 3, electric capacity C1 is connected between the other end of induction transistor Q1 and ground.
The present embodiment also discloses a kind of cabinet door detection means, refer to Fig. 2, and the device is included disclosed in above-described embodiment
Switch detection circuit, and signal stop module 4, signal stop module 4 be arranged on switch detection module 2 signal transmitting terminal and
Between signal receiving end, for the letter for being stopped according to cabinet door on off state or permissive signal transmitting terminal is launched to signal receiving end
Number.
The present embodiment also discloses a kind of retractable cabinet, and in the present embodiment, retractable cabinet can be micro-wave oven, baking box, wash
The cabinet type household electrical appliances such as kitchen cabinet, the present embodiment is illustrated so that retractable cabinet is as dish washing cupboard as an example, refer to Fig. 3 a and Fig. 3 b, wherein,
Fig. 3 a are the schematic perspective view of the dish washing cupboard, and Fig. 3 b are partial enlarged drawing.The folding cabinet includes folding cabinet body 100, cabinet door 200
And switch detection circuit disclosed in above-described embodiment and signal stop module 4, wherein：
Cabinet door 200 can be closed with folding cabinet body 100 and is connected, for being closed to folding cabinet body 100.Switch detection
Circuit 300 and signal stop module 4 be accordingly arranged on folding cabinet body or with cabinet door on, folding cabinet body is entered in cabinet door
During row closure, signal stops that module 4 is located between the signal transmitting terminal of switch detection module 2 and signal receiving end.
In the present embodiment, signal stops that module 4 is light barrier, is detachably secured in folding cabinet body or cabinet door.
For the ease of wiring, in an alternate embodiment of the invention, switch detection circuit 300 is arranged on the side of cabinet door 100, signal resistance
Gear module 4 is arranged on the side of folding cabinet body 100.
For ease of skilled artisan understands that technical scheme, worked as a specific example to illustrate with dish washing cupboard below
Journey, 220V electric mains form 5V dc sources and are powered to switch detection circuit after mainboard AC-DC is converted；By controller
Control, conducting switching transistor T1 be transmitted to optoelectronic switch with by 5V dc sources, the optoelectronic switch receiving terminal when cabinet door is opened
The optical signal from transmitting terminal, optoelectronic switch conducting are normally received, so that signal output part exports significant level, then based on this
Significant level passes through the corresponding defencive function of software program control realization；When cabinet door is closed, because signal stops module just
Gear is between optoelectronic switch transmitting terminal and receiving terminal, therefore receiving terminal cannot normally receive the optical signal from transmitting terminal, photoelectricity
Switch cannot normally, be off state, thus signal output part export inactive level (such as low level), now pass through
Software program judges to provide corresponding operational order, performs corresponding washing function.
Cabinet door detection means provided in an embodiment of the present invention, switch detection circuit and retractable cabinet, by switching detection mould
The signal receiving end of block adjusts state when the signal of signal transmitting terminal transmitting is received, it is achieved thereby that by contactless electricity
Mode cabinet door on off state is detected, relative to existing jogging switches measurement, mechanical loss can be reduced, so as to prolong
The service life of equipment is grown.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (11)
1. a kind of switch detection circuit, it is characterised in that including：
Switch detection module (2), including signal transmitting terminal and signal receiving end, the signal receiving end is according to receiving the letter
The signal adjustment state of number transmitting terminal transmitting；
Signal output part (3), is connected to the signal receiving end of switch detection module (2), for according to the switch detection
The corresponding level signal of State- output of the signal receiving end of module (2).
2. switch detection circuit as claimed in claim 1, it is characterised in that also include：Power module (1)；The power supply mould
Block (1) includes：
Gate-controlled switch, one end of the gate-controlled switch is connected to dc source, and the other end is connected to switch detection module (2)
Signal transmitting terminal, when the control end of the gate-controlled switch receives significant level, turn on the gate-controlled switch, by institute
The power delivery of dc source offer to the signal transmitting terminal of switch detection module (2) is provided.
3. switch detection circuit as claimed in claim 1 or 2, it is characterised in that
The signal transmitting terminal of switch detection module (2) includes：Light emitting diode (D1), light emitting diode (D1) connection
To between dc source and ground, for responding the electrical source luminescent of the dc source offer to switch detection module (2)
Signal receiving end launches optical signal；
The signal receiving end of switch detection module (2) includes：Induction transistor (Q1), the one of the induction transistor (Q1)
End is connected to dc source, and the other end of the induction transistor (Q1) is connected to the signal output part (3)；The sensing is brilliant
Described in the optical signal ON/OFF of the signal transmitting terminal transmitting of the control end sensing switch detection module (2) of body pipe (Q1)
One end of induction transistor (Q1) and the other end.
4. switch detection circuit as claimed in claim 3, it is characterised in that also include：
First current limliting module, the electric current of the light emitting diode (D1) is flowed through for limiting；It is connected on the light emitting diode
(D1) institute in the loop；And/or,
Second current limliting module, the electric current of the induction transistor (Q1) is flowed through for limiting；It is connected on the induction transistor
(Q1) institute in the loop.
5. switch detection circuit as claimed in claim 3, it is characterised in that also include：
Filtration module, is connected between the other end of the induction transistor (Q1) and the signal output part (3), for institute
Level signal is stated to be filtered.
6. switch detection circuit as claimed in claim 2, it is characterised in that also include：
3rd current limliting module, is connected on the control end institute of the gate-controlled switch in the loop.
7. a kind of cabinet door detection means, it is characterised in that including：
Switch detection circuit as claimed in any one of claims 1 to 6；
Signal stops module (4), is arranged between the signal transmitting terminal of switch detection module (2) and signal receiving end, uses
In being stopped according to cabinet door on off state or allow the signal that the signal transmitting terminal is launched to the signal receiving end.
8. a kind of retractable cabinet, it is characterised in that including：
Folding cabinet body；
Cabinet door, can close with the folding cabinet body and be connected, for being closed to the folding cabinet body；
Switch detection circuit as claimed in any one of claims 1 to 6, is arranged in the folding cabinet body or cabinet door；
Signal stops module (4), is accordingly arranged in the cabinet door of the folding cabinet or body with the switch detection circuit,
When the cabinet door is closed to the folding cabinet body, the signal stops module (4) positioned at the switch detection module
(2) between signal transmitting terminal and signal receiving end.
9. retractable cabinet as claimed in claim 8, it is characterised in that
The signal stops that module (4) is light barrier, is detachably secured in the folding cabinet body or the cabinet door.
10. retractable cabinet as claimed in claim 8, it is characterised in that
The switch detection circuit is arranged on the cabinet door side；The signal stops that module (4) is arranged on the folding cabinet sheet
Body side.
The 11. retractable cabinet as described in claim 8-10 any one, it is characterised in that the retractable cabinet is dish washing cupboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620894607.3U CN206223187U (en) | 2016-08-17 | 2016-08-17 | Cabinet door detection means, switch detection circuit and retractable cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620894607.3U CN206223187U (en) | 2016-08-17 | 2016-08-17 | Cabinet door detection means, switch detection circuit and retractable cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206223187U true CN206223187U (en) | 2017-06-06 |
Family
ID=58780335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620894607.3U Expired - Fee Related CN206223187U (en) | 2016-08-17 | 2016-08-17 | Cabinet door detection means, switch detection circuit and retractable cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206223187U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123932A (en) * | 2016-08-17 | 2016-11-16 | 珠海格力电器股份有限公司 | Cabinet door detection device, switch detection circuit and can folding cabinet |
| CN109343124A (en) * | 2018-12-05 | 2019-02-15 | 六安富华智能信息科技有限公司 | A kind of high iron locker closure monitoring system |
-
2016
- 2016-08-17 CN CN201620894607.3U patent/CN206223187U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123932A (en) * | 2016-08-17 | 2016-11-16 | 珠海格力电器股份有限公司 | Cabinet door detection device, switch detection circuit and can folding cabinet |
| CN109343124A (en) * | 2018-12-05 | 2019-02-15 | 六安富华智能信息科技有限公司 | A kind of high iron locker closure monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170606 Termination date: 20210817 |