CN104242891B - Electronics blast switch and gas utensil - Google Patents
Electronics blast switch and gas utensil Download PDFInfo
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- CN104242891B CN104242891B CN201410502702.XA CN201410502702A CN104242891B CN 104242891 B CN104242891 B CN 104242891B CN 201410502702 A CN201410502702 A CN 201410502702A CN 104242891 B CN104242891 B CN 104242891B
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Abstract
The present invention is applied to gas utensil field, there is provided a kind of electronics blast switch, including：Upper lid, lower cover, malleation mouth, negative pressure mouth, blast barrier film, support frame, magnet ring, induction coil and thin footpath spring；Wherein；The periphery of blast barrier film is arranged in diaphram tank, cavity in electronics blast switch is divided into malleation chamber and negative pressure cavity by blast barrier film, at least two juts are additionally provided with blast barrier film, support frame position corresponding with jut is provided with fixing hole, and the jut of blast barrier film is fixed through the fixing hole with support frame；Magnet ring fixed part is provided with support frame, magnet ring is fixed by socket with magnet ring fixed part；Lower cover is provided with magnet bore in the correspondence position of magnet ring fixed part, and the surrounding of magnet bore is wound with induction coil, and induction coil is provided with two output ends, spring location division is provided with magnet bore, and thin footpath spring is fixed with spring location division.The present invention has the advantages of cost is low, and reliability is high, and fault rate is low.
Description
Technical field
The invention belongs to gas utensil field, more particularly to a kind of electronics blast switch and gas utensil.
Background technology
Gas utensil just refers to that gas heater, the wall-hung boiler used in our daily lifes etc. is all and uses combustion gas（Manually
Coal gas, liquefied petroleum gas, natural gas）It is used as the utensil of fuel.Blast switch is a kind of detecting element, is normally applied including visiting
Survey forced-ventilated water heater, air draft situation in the exhaust emission system of burnt gas wall hanging furnace;It is other to need to detect air-flow or air
The occasion of pressure also widely uses, such as the filtration system of business air conditioner, the such as VAV systems it be to be pushed away using the static pressure of gas
Dynamic microswitch is opened or closed with realizing.The air pressure change that blast switch typically detects belongs to pressure in the range of 100pa
The very high device of sensitivity requirement.
Up to the present, the whole world is all mechanical blast switch, be by microswitch controlling out or
Closing so that the job stability of existing blast switch is poor, and reliability is not high, and easily oxidation causes loose contact for contact,
The frequency for malfunctioning or being failure to actuate is also higher, by the statistics to market mainstream brand, such as ten thousand pleasures, ten thousand and the brand such as beautiful
Water heater trouble unit in, the fault rate of blast switch for many years always ranking the first two, high fault rate is always that blast is opened
The persistent ailment of pass.Separately also some producers attempt to develop new product to replace the blast switch of machinery, as the pressure of semiconductor-type passes
Sensor, but the pressure sensor of semiconductor-type will accomplish that the blast of as little as several pas can be identified, and only external producer can do at present
Arrive, but cost is really high, is used so failing to popularize in this industry.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of electronics blast switch, it is intended to solves existing technical scheme failure
Rate is high, the problem of poor work stability.
The present invention provides a kind of electronics blast switch, and the electronics blast switch includes：It is upper lid, lower cover, malleation mouth, negative
Press mouth, blast barrier film, support frame, magnet ring, induction coil and thin footpath spring；Wherein；The electronics blast switch is provided with diaphram tank；
The periphery of blast barrier film is arranged in diaphram tank, and the cavity in electronics blast switch is divided into malleation chamber and negative pressure by blast barrier film
Chamber, malleation chamber are malleation mouth with outside connected entrance, and negative pressure cavity is negative pressure mouth with outside connected entrance；Blast barrier film and support
Frame is fixed；Magnet ring fixed part is provided with support frame, magnet ring is fixed by socket with magnet ring fixed part；Pair of the lower cover in magnet ring fixed part
Position is answered to be provided with magnet bore, magnet ring is respectively positioned in negative pressure cavity with magnet bore, and the surrounding of magnet bore is wound with induction coil, the line of induction
Circle is provided with two output ends, spring location division is provided with magnet bore, thin footpath spring is positioned by spring location division.
Optionally, the spring linear diameter of the thin footpath spring is less than 0.35mm.
Optionally, the diameter of the blast barrier film zone of action is more than 50mm.
Optionally, the diameter of the blast barrier film is more than 55mm.
Optionally, the thickness of the blast barrier film zone of action is less than 0.25mm.
Optionally, the blast barrier film is fixed with support frame is specially：At least two projections are additionally provided with blast barrier film
Portion, support frame position corresponding with jut are provided with fixing hole, and the jut of blast barrier film passes through the fixing hole and support frame
It is fixed.
Optionally, the magnet ring fixed part is provided with spring jut, and the spring jut is stretched into thin footpath spring
In hole.
Optionally, the electronics blast switch also includes：Oscillating circuit, two of the oscillating circuit and induction coil
Output end connects.
Optionally, described electronics blast switch also includes：Electronic control switch circuit, the electronic control switch circuit
It is connected with oscillating circuit.
Optionally, the induction coil is specially：The induction coil of every layer of uniform coiling.
The present invention also provides a kind of gas utensil, and the gas utensil includes above-mentioned electronics blast switch.
In embodiments of the present invention, the electronics blast switch that technical scheme provided by the invention provides, due to controlling blast
The switch of switch is using electronically, so the shortcomings that mechanical switch is not present in it, influence of the environment to electronics blast switch is very
It is small, so the advantages of electronics blast switch provided by the invention has reliability height, and stability is good.
Brief description of the drawings
Fig. 1 is the sectional view of electronics blast switch provided by the invention；
Fig. 2 is the sectional view of another electronics blast switch provided by the invention；
Fig. 3 is the outline drawing of electronics blast switch provided by the invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The present invention provides a kind of electronics blast switch, the electronics blast switch as shown in Fig. 1,2, including：Upper lid
101st, lower cover 102, malleation mouth 103, negative pressure mouth 104, blast barrier film 105, support frame 106, magnet ring 107, induction coil
108 and thin footpath spring 110；Wherein；Electronics blast switch is provided with diaphram tank 118（Concrete structure can be：Upper lid
101 or the surrounding of lower cover 102 be provided with notch, upper lid 101 and lower cover 102 cooperatively form diaphram tank 118；Blast
The periphery of barrier film 105 is arranged in diaphram tank 118, and the cavity in electronics blast switch is divided into just by blast barrier film 105
Press chamber 112 and negative pressure cavity 113, malleation chamber 112 and outside connected entrance be malleation mouth 103, negative pressure cavity 113 with outside
The connected entrance in portion is negative pressure mouth 104；Blast barrier film 105 is fixed with support frame 106（Specifically fixed form can be：
At least two juts 1051, support frame 106 and 1051 corresponding position of jut are additionally provided with blast barrier film 105
Install and be equipped with fixing hole, the jut 1051 of blast barrier film 105 is fixed through the fixing hole with support frame 106, certainly
Its fixed form can also be that blast barrier film 105 fixes or can also be other solid with the hot pressing of support frame 106
Determine mode, the present invention does not limit to fixed concrete mode）；Magnet ring fixed part 1061, magnet ring 107 are provided with support frame 106
It is fixed by socket with magnet ring fixed part 1061；Lower cover 102 is provided with magnet bore in the correspondence position of magnet ring fixed part 1061
1021, the surrounding of magnet bore 1021 is wound with induction coil 108, and induction coil 108 is provided with two output ends, magnet bore
Spring location division 109 is provided with 1021, thin footpath spring 110 is positioned by spring location division 109.
Optionally, above-mentioned induction coil is specifically as follows：The induction coil of every layer of uniform coiling.Here using every layer
The induction coil of even coiling is primarily to the linear character of raising inductance value, due to the coil of non-homogeneous coiling, such as does washing
The coil used in the detection of machine hydraulic pressure sensor it is linear very bad.Increase linear character can be very good to improve the essence of detection
Degree.
The operation principle of the present invention is specifically as follows, because cavity is divided into malleation chamber and negative pressure cavity by blast barrier film, because
Its accuracy of detection requires very high, so the zone of action thickness of blast barrier film can not be too thick, in order to avoid influence precision, blast barrier film
The thickness of zone of action need to ensure to need in more than 50mm, blast diaphragm diameter in below 0.25mm, the diameter of zone of action
Will be in more than 55mm, when could so make it that blast is in the range of 100pa, blast film has sensitive change, and it detects former
Manage and be, when the pressure change of negative pressure cavity, blast barrier film is pressed downward by the pressure differential of malleation chamber and negative pressure cavity, now, is fixed on
The magnet ring of magnet ring fixed part will move down, the difference of the distance so moved with magnet ring, the inductance of induction coil sensing
Amount is also different, the distance of magnet ring movement is so known by two delivery outlet cans of induction coil, so as to control electronics
The switch of blast switch, when the pressure differential of malleation chamber and negative pressure cavity becomes it is small when, thin footpath spring rebounds magnet ring initial position, needs
It is noted that thin footpath spring here is specifically as follows spring of the linear diameter in 0.35 below mm of spring, because blast
It is especially small to switch the blast of impression, if with the thicker spring of line footpath, the blast pressure of blast switch more originally can not depress bullet
Spring, so selecting thin footpath spring here primarily to improving the precision of blast switch.In addition, above-mentioned electronics blast switch
Switch is determined by the inductance value of induction coil, for microswitch, machinery of the electronic signal than microswitch
Signal stabilization it is more, be not easy to break down, thus its have reduce fault rate the advantages of.In addition, using provided by the invention
Structure causes the cost of blast switch not have much changes substantially, so it also has the advantages of cost is low.
The zone of action of above-mentioned blast barrier film can be the region of very thin thickness in blast barrier film, can specifically be located at wind
The region between barrier film outer peripheral areas and intermediate region is pressed, wherein, the outer peripheral areas of blast barrier film is specifically as follows：It is arranged on
Region in blast groove, the intermediate region of blast barrier film are specifically as follows：The region contacted with support frame.
Optionally, above-mentioned magnet ring fixed part 1061 is provided with spring jut, and the spring jut stretches into thin footpath spring
In 110 mesopore.By setting spring jut so that thin footpath spring 110 will not shift because one end by
It is provided with spring location division 109 in magnet bore 1021 to position, the other end is positioned by spring jut, such thin footpath spring
110 can only form displacement in the height direction, and the displacement without left and right occurs, which further increases blast switch
Precision.
Optionally, above-mentioned electronics blast switch also includes：Oscillating circuit, the oscillating circuit and the two of induction coil 108
Individual output end connection.It is in order to which the inductance signal of induction coil is converted into frequency signal, thus to increase an oscillating circuit
It will not be formed and lost because of transmission range and to signal, because for inductance signal, if transmission range is longer, then
Interference for inductance signal is very big, and electronics blast switch especially provided by the invention is inherently a kind of high-precision
The blast detection device of degree, the requirement to interference is more increased, so can further improve the essence of detection after increase oscillating circuit
Degree.
Optionally, above-mentioned electronics blast switch also includes：Electronic control switch circuit, the circuit are connected with oscillating circuit
Connect, identify the change of frequency, circuit is according to the parameter output on or off signal set.
The present invention also provides a kind of gas utensil, and the gas utensil includes above-mentioned blast switch.Include above-mentioned blast switch
Gas utensil has the advantages of reliability is high.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. a kind of electronics blast switch, it is characterised in that the electronics blast switch includes：Upper lid（101）, lower cover (102),
Malleation mouth (103), negative pressure mouth (104), blast barrier film (105), support frame (106), magnet ring (107), induction coil
And thin footpath spring (110) (108)；Wherein；The electronics blast switch is provided with diaphram tank (118)；Blast barrier film
(105) periphery is arranged in diaphram tank (118), and the cavity in electronics blast switch is divided into by blast barrier film (105)
Malleation chamber (112) and negative pressure cavity (113), malleation chamber (112) and outside connected entrance are malleation mouth (103), negative pressure cavity
(113) it is negative pressure mouth (104) with outside connected entrance；Blast barrier film (105) is fixed with support frame (106)；Support
Magnet ring fixed part (1061) is provided with frame (106), magnet ring (107) is fixed by socket with magnet ring fixed part (1061)；
Lower cover (102) is provided with magnet bore (1021), magnet ring (107), magnet in the correspondence position of magnet ring fixed part (1061)
Chamber (1021) is respectively positioned in negative pressure cavity (113), and the surrounding of magnet bore (1021) is wound with induction coil (108), induction coil
(108) two output ends are provided with, spring location division (109) is provided with magnet bore (1021), thin footpath spring (110) is logical
Cross spring location division (109) positioning；The thin footpath spring（110）Spring linear diameter be less than 0.35mm or described blast every
The diameter of film (105) zone of action is more than 50mm.
2. electronics blast switch according to claim 1, it is characterised in that the diameter of the blast barrier film (105) is more than
55mm。
3. electronics blast switch according to claim 1, its feature are being, blast barrier film (105) zone of action
Thickness be less than 0.25mm.
4. the electronics blast switch according to claim 1, it is characterised in that the blast barrier film (105) and support
Frame (106) fixation is specially：At least two juts (1051), support frame are additionally provided with blast barrier film (105)
(106) position corresponding with jut (1051) is provided with fixing hole, the jut (1051) of blast barrier film (105)
It is fixed through the fixing hole and support frame (106).
5. the electronics blast switch according to claim 1, it is characterised in that the magnet ring fixed part（1061) set
There is spring jut, the spring jut stretches into thin footpath spring（110) in mesopore.
6. the electronics blast switch according to claim 1, it is characterised in that the electronics blast switch also includes：Shake
Circuit is swung, the oscillating circuit is connected with two output ends of induction coil (108).
7. the electronics blast switch according to claim 6, it is characterised in that described electronics blast switch also includes：
Electronic control switch circuit, the electronic control switch circuit are connected with oscillating circuit.
8. according to any described electronics blast switch of claim 1-7, it is characterised in that the induction coil（108）Tool
Body is：The induction coil of every layer of uniform coiling.
9. a kind of gas utensil, it is characterised in that the electron wind that the gas utensil is included as described in claim 1-8 is any presses off
Close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410502702.XA CN104242891B (en) | 2014-09-26 | 2014-09-26 | Electronics blast switch and gas utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410502702.XA CN104242891B (en) | 2014-09-26 | 2014-09-26 | Electronics blast switch and gas utensil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104242891A CN104242891A (en) | 2014-12-24 |
| CN104242891B true CN104242891B (en) | 2017-12-01 |
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ID=52230361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410502702.XA Active CN104242891B (en) | 2014-09-26 | 2014-09-26 | Electronics blast switch and gas utensil |
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| Country | Link |
|---|---|
| CN (1) | CN104242891B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341094A (en) * | 2018-09-30 | 2019-02-15 | 广东万家乐燃气具有限公司 | A kind of gas heater and its blocking guard method |
| CN110762848A (en) * | 2019-09-26 | 2020-02-07 | 万家乐热能科技有限公司 | Wall-mounted furnace wind pressure monitoring and controlling method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063686U (en) * | 1990-03-10 | 1990-10-10 | 张宝巨 | Magnetic control differential pressure switch |
| CN201345323Y (en) * | 2009-02-13 | 2009-11-11 | 北京光华创世科技有限责任公司 | Micro differential pressure switch |
| CN101776334A (en) * | 2009-01-09 | 2010-07-14 | 林奕开 | Water-level and water-temperature sensor for solar water heater |
| CN103646821A (en) * | 2013-12-04 | 2014-03-19 | 佛山市顺德区奇林电气有限公司 | Magnetic reed pipe conductive wind-pressure switch |
| CN204168267U (en) * | 2014-09-26 | 2015-02-18 | 思达文电器（深圳）有限公司 | Electron wind compresses switch and gas utensil |
-
2014
- 2014-09-26 CN CN201410502702.XA patent/CN104242891B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063686U (en) * | 1990-03-10 | 1990-10-10 | 张宝巨 | Magnetic control differential pressure switch |
| CN101776334A (en) * | 2009-01-09 | 2010-07-14 | 林奕开 | Water-level and water-temperature sensor for solar water heater |
| CN201345323Y (en) * | 2009-02-13 | 2009-11-11 | 北京光华创世科技有限责任公司 | Micro differential pressure switch |
| CN103646821A (en) * | 2013-12-04 | 2014-03-19 | 佛山市顺德区奇林电气有限公司 | Magnetic reed pipe conductive wind-pressure switch |
| CN204168267U (en) * | 2014-09-26 | 2015-02-18 | 思达文电器（深圳）有限公司 | Electron wind compresses switch and gas utensil |
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| Publication number | Publication date |
|---|---|
| CN104242891A (en) | 2014-12-24 |
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