CN104112625A - Seating switch device - Google Patents
Seating switch device Download PDFInfo
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- CN104112625A CN104112625A CN201410271205.3A CN201410271205A CN104112625A CN 104112625 A CN104112625 A CN 104112625A CN 201410271205 A CN201410271205 A CN 201410271205A CN 104112625 A CN104112625 A CN 104112625A
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- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 68
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 39
- 239000012528 membrane Substances 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 20
- 230000008859 change Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 description 8
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000009699 differential effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
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- 238000005755 formation reaction Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
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Abstract
A seating switch device is a switch mechanism comprising a magnet (23) and a reed contact switch (24), wherein the magnet performs switching operation through deformation of a diaphragm 20. The switch mechanism enables the magnet (23) to be fixed to the diaphragm (20) facing one side of a pressure chamber (21). The reed contact switch (24) keeps parallel to or substantially parallel to the magnet (23) along the length to be opposite to the magnet. The relative space between the magnet (23) and the reed contact switch (24) is changed on the basis of deformation of the diaphragm (20), so that the switch mechanism can perform switching operation.
Description
Technical field
The present invention relates to a kind of switching device of taking a seat, for detection of the pressure differential of a pair of balancing gate pit being divided by membrane elements such as diaphragms.
Background technology
As this switching device, in the past known have in patent documentation 1 formation of recording, and represents the overview of this existing switching device in Fig. 4.
Existing switching device shown in Fig. 4 is provided with diaphragm 2 in shell 1, will in shell 1, be divided into a pair of balancing gate pit 3,4.Above-mentioned diaphragm 2 is provided with the 2a of pleat portion in its outside, so that pressure differential that can corresponding above-mentioned balancing gate pit 3,4 and being out of shape.
In addition, in figure, mark 5 is for importing pressure the pressure introducing port of one balancing gate pit 3, and 6 for importing pressure the pressure introducing port of another balancing gate pit 4.
As diaphragm 2 as described above, in balancing gate pit, the face of 4 sides erects actuating strut 7, and permanent magnet 8 is fixed on to the front end of this actuating strut 7.And above-mentioned actuating strut 7 and permanent magnet 8 are towards the outstanding chamber 9 with balancing gate pit's 4 one.
Therefore, it is large that the pressure of Ruo Yi balancing gate pit 3 relatively becomes, and diaphragm 2 is to another balancing gate pit's 4 sides distortion, and actuating strut 7 moves in the axial direction, make permanent magnet 8 from illustrated state in the interior rising in above-mentioned outstanding chamber 9.
In addition, although dispose reed contact switch 10 in the outside of above-mentioned outstanding chamber 9, the length direction of this reed contact switch 10 is parallel with above-mentioned actuating strut 7.In addition, when diaphragm 2 is during in illustrated state, be located at the permanent magnet 8 of actuating strut 7 in reed contact switch 10 being remained on to the relative position of off-state, when actuating strut 7 moves in the axial direction so that permanent magnet 8 during almost over against reed contact switch 10, reed contact switch 10 keeps on-states.
In above-mentioned formation, from pressure introducing port 5,6 to balancing gate pit, 3,4 import pressure, and the pressure of another balancing gate pit 4 of the pressure ratio of Ruo Yi balancing gate pit 3 is large, diaphragm 24 sides distortion to balancing gate pit.When actuating strut 7 is when along with the distortion of diaphragm 2, mobile and permanent magnet 8 is almost over against reed contact switch 10, this reed contact switch 10 carries out ON Action.
Like this, as long as be located at the permanent magnet 8 of the front end of actuating strut 7, from one end of the length direction of reed contact switch 10, do not advance to the assigned position of the length direction of reed contact switch 10, can not make reed contact switch 10 carry out ON Action.In other words, in order to make reed contact switch 10 carry out switch motion, must make the stroke of permanent magnet 8 very long.
Patent documentation 1:(Japan) JP 2010-257706 communique
In existing device as described above, owing to making, the stroke of permanent magnet 8 is very long, so permanent magnet 8 arrives, to make reed contact switch 10 carry out time of position of ON Action elongated, correspondingly, has the problem of response variation.
In addition, as mentioned above, must make permanent magnet 8 significantly advance, correspondingly, must make the deflection of diaphragm 2 very large.In addition, in order to increase the deflection of diaphragm 2, must increase the 2a of pleat portion of this diaphragm 2.
But, if increase the 2a of pleat portion, obviously can produce the problem of the aggrandizement apparatus integral body of having to.
In addition, if increase as described above the 2a of pleat portion of diaphragm 2, from precision, consider also can produce following problem.
First, if the 2a of pleat portion is larger, reaction variation during diaphragm 2 repeated deformation, and cannot make diaphragm 2 fully be out of shape with less pressure.
In addition, in order to increase the 2a of pleat portion, must thicken the thickness of the 2a of convolution portion, and the increase of its thickness will inevitably damage the easiness of distortion, the reaction meeting variation when repeated deformation in the above described manner.
Due to this reason, increasing in the existing switching device of the 2a of pleat portion, there is the not high problem of pressure difference detection sensitivity.
In addition, the switching device of taking a seat although of the present invention requires high-precision pressure difference detection, in above-mentioned existing switching device, does not require enough precision, cannot be as the problem of the switching device of taking a seat thereby exist.
In addition, if thicken as described above the thickness of the 2a of pleat portion, its pressure differential action pressure also can increase, if pressure differential action pressure increases like this, for example when ambient temperature changes, its detection error also can become large.This be because, when variations in temperature, the coefficient of elasticity of diaphragm can change, pressure differential action pressure also can change, if but pressure differential action pressure is larger, the error of the detected pressures changing based on above-mentioned coefficient of elasticity also can become greatly.
In addition, fluid pressure from supply source is not necessarily constant, in it significantly changes, when if the sensitivity of pressure difference detection is bad as described above, using detect mouth with the distance with its approaching object as an axle, in the two-dimensional curve figure of the pressure differential of Jiang Liangge balancing gate pit as another root axle, owing to supplying with the variation of pressing, can make characteristic gain significantly change.If characteristic gain changes, can produce the more bad problem of pressure difference detection precision.
Summary of the invention
The object of the present invention is to provide the high switching device of taking a seat of accuracy of detection of pressure differential.
In the present invention, at the supply source of pressure fluid, connect side by side setting pressure side path and detection side path, and be provided with setting pressure adjusting device in above-mentioned setting pressure side path, in detection side path, be provided with detection mouth.And above-mentioned setting pressure side path is connected with the balancing gate pit by having flexible membrane element division, detection side path is connected with another balancing gate pit being divided by above-mentioned membrane element.In addition, above-mentioned membrane element is because the pressure differential of above-mentioned a pair of balancing gate pit deforms, and is provided with the switching mechanism that carries out switch motion by the distortion of above-mentioned membrane element, according to the pressure differential between the above-mentioned a pair of balancing gate pit of the motion detection of this switching mechanism.
First aspect present invention, above-mentioned switching mechanism consists of magnet and reed contact switch, above-mentioned magnet is fixed on above-mentioned membrane element, reed contact switch keeps the state of its length direction or almost parallel parallel with above-mentioned magnet and is relative with magnet, corresponding to the distortion of above-mentioned membrane element, change the relative spacing of above-mentioned magnet and above-mentioned reed contact switch, make switching mechanism carry out switch motion.
In addition, above-mentioned membrane element comprises diaphragm, ripple sylphon or by having the rubber of retractility, the film that resin is made concurrently.
Second aspect present invention, is provided with above-mentioned magnet at above-mentioned membrane element, and is provided with above-mentioned reed contact switch outside Gai balancing gate pit and in the position that can carry out by above-mentioned magnet is approached switch motion.
Third aspect present invention, is provided with above-mentioned switching mechanism in the arbitrary balancing gate pit in above-mentioned a pair of balancing gate pit.
Fourth aspect present invention, at least one balancing gate pit in above-mentioned a pair of balancing gate pit arranges inflow entrance and flow export, these two mouths are connected in above-mentioned setting pressure side path or detection side path midway, pressure fluid is passed through in an above-mentioned balancing gate pit, utilize this pressure fluid to carry out cooling to above-mentioned switching mechanism or membrane element.
Fifth aspect present invention, above-mentioned switching mechanism consists of magnet and reed contact switch, above-mentioned reed contact switch is arranged on balancing gate pit's side, above-mentioned magnet is located in an above-mentioned balancing gate pit rotationally corresponding to the distortion of membrane element, and according to its turned position make this magnet and reed contact switch over against.
According to first aspect present invention, because making the relative spacing of above-mentioned magnet and above-mentioned reed contact switch, the distortion corresponding to above-mentioned membrane element changes, make switching mechanism carry out switch motion, even also can not carry out switch motion so do not increase the deflection of membrane element.Therefore, also large pleat portion like that can be set on membrane element in the past.
In addition, owing to not needing larger pleat portion, so compare with existing device, can realize whole miniaturization, and can improve response and the precision of membrane element.
According to second aspect present invention, because reed contact switch is located at outside balancing gate pit, so reed contact switch can not be exposed in the wet goods liquid of sneaking in pressure fluid.
According to third aspect present invention, because above-mentioned switching mechanism is located in arbitrary balancing gate pit, so can make the whole compact of device.
According to fourth aspect present invention, by fluid, can suppress the rising that pressure indoor temperature is unnecessary.Therefore,, when switching mechanism use has electronic component, can not affect the performance of this electronic component etc. because extreme temperature rises.In addition, because membrane element also can not be subject to the impact of high temperature, so also can not affect the elasticity of membrane element.
According to fifth aspect present invention, due to membrane element if make magnet and reed contact switch over against or depart from this over against the scope internal strain of position, so with first aspect similarly, even if do not increase the deflection of membrane element, also can carry out switch motion.Therefore, also large pleat portion like that can be set on membrane element in the past.In addition, due to the pleat portion without larger, so compare with existing device, can realize whole miniaturization, and can improve response and the precision of membrane element.
Accompanying drawing explanation
Fig. 1 is the pie graph of the first execution mode.
Fig. 2 is the pie graph of the second execution mode.
Fig. 3 is the pie graph of the 3rd execution mode.
Fig. 4 means the skeleton diagram of corresponding device.
Description of symbols
11: pressure source
13: setting pressure side path
14: detection side path
15: setting pressure adjusting device
16: detect mouth
20: diaphragm
21,22: balancing gate pit
23: magnet
24: reed contact switch
25,27: inflow entrance
26,28: flow export
Embodiment
In the 1st execution mode shown in Fig. 1, via supply passageway 12, setting pressure side path 13 and detection side path 14 and the pressure source 11 consisting of compressor etc. are connected in parallel.And, the setting pressure adjusting device 15 consisting of variable orifice is connected with setting pressure side path 13, in detection side path 14, be provided with and detect mouth 16.
In addition, the mark 17 in figure is for being located at the throttle orifice of setting pressure side path 13, and 18 for being located at the throttle orifice of detection side path 14.
On the other hand, in the shell 19 of pressure that imports above-mentioned setting pressure side path 13 and detection side path 14, membrane element of the present invention being set is diaphragm 20, thereby is balancing gate pit 21,22 by the internal separation of this shell 19.In addition, the mark 20a in figure is the pleat portion that is located at diaphragm 20 outsides.
As mentioned above, in the balancing gate pit 21 being divided by diaphragm 20, via pressure introducing port a, import the pressure of setting pressure side path 13, in another balancing gate pit 22, via pressure introducing port b, import the pressure of detection side path 14.
And, in a side of the above-mentioned diaphragm 20 of 21 sides towards balancing gate pit, be provided with magnet 23, and at the arranged outside reed contact switch 24 of shell 19.This reed contact switch 24, to connect the mode that the direction of its terminal 24a, 24b is length direction or almost parallel parallel with above-mentioned magnet 23, configures relatively in the outside of shell 19.
In addition, above-mentioned magnet 23 forms switching mechanism of the present invention with 24 combinations of reed contact switch.
In the above-described embodiment, although be provided with magnet 23 in a side of diaphragm 20, magnet 23 also can be integrally formed with diaphragm 20.
The effect of the first execution mode then, is described.
If regulate the aperture of setting pressure adjusting device 15, under the state of setting pressure of having specified setting pressure side path 13, during from fluids such as pressure source 11 supply gas, via pressure introducing port a, the pressure of above-mentioned setting is imported in a balancing gate pit 21.In addition, via pressure introducing port b, the pressure of detection side path 14 is imported in another balancing gate pit 22.
Now, when object is not during proximity test mouth 16, due to the pressure ratio detection side path 14 in setting pressure side path 13 Ji Yi balancing gate pits 21 and the pressure in another balancing gate pit 22 higher, so diaphragm 20 22 sides distortion to another balancing gate pit, magnet 23 becomes large with the relative spacing of reed contact switch 24.If magnet 23 becomes large, the state that makes reed contact switch 24 remain open with the relative spacing of reed contact switch 24.
Due to from above-mentioned state, when object is gradually during proximity test mouth 16, the pressure loss that detects mouth 16 also increases thereupon, correspondingly, and the pressure rise of detection side path 14 and another balancing gate pit 22.
Although the pressure rise along with another balancing gate pit 22, diaphragm 20 returns to illustrated normal position, but when above-mentioned object further approaches with detection mouth 16, the pressure of detection side path 14 and another balancing gate pit 22, higher than the pressure of setting pressure side path 13 Ji Yi balancing gate pits 21, diminishes magnet 23 and the interval of reed contact switch 24.Like this, when the interval of magnet 23 and reed contact switch 24 diminishes, under the impact of the magnetic flux of magnet 23, make terminal 24a, the 24b contact of reed contact switch 24 and reed contact switch 24 is remained on to the state of connection.
As mentioned above, whether proximity test mouth 16 is to predefined scope by the ON Action of reed contact switch 24, can to grasp object.
And, in this first execution mode, owing to can passing through the Deformation control magnet 23 of diaphragm 20 and the relative spacing of reed contact switch 24, thereby control the switch motion of reed contact switch 24, therefore, can reduce the amount of movement of magnet 23 and make reed contact switch 24 carry out switch motion.
Owing to the amount of movement of magnet 23 being suppressed to such an extent that littlely mean that the deflection of diaphragm 20 also reduces, so from the past different, can reduce the 20a of pleat portion.
As mentioned above, owing to can reducing the 20a of pleat portion, so compare with existing device, miniaturization that can implement device integral body.
In addition, owing to can reducing the 20a of pleat portion, correspondingly can make the 20a of pleat portion attenuation, so can improve the precision of response, sensitivity or the temperature characterisitic etc. of diaphragm 20, and the impact that not changed by voltage supply.
In addition, in this first execution mode, owing to forming the reed contact switch 24 of switching mechanism, be configured in outside shell 19, so reed contact switch 24 can be by pollutions such as fluids.
The second execution mode shown in Fig. 2 is with the something in common of the first execution mode: by membrane element of the present invention, to be diaphragm 20 become a pair of balancing gate pit 21,22 by the internal separation of shell 19 and form the 20a of pleat portion and at this diaphragm 20, magnet 23 be set at above-mentioned diaphragm 20.
But, what the second execution mode was different from the first execution mode is, reed contact switch 24 is located at the inside of a balancing gate pit 21, in Gai balancing gate pit 21, reed contact switch 24 so that connect its terminal 24a, 24b direction, be the configuration relative to magnet 23 of length direction mode parallel with above-mentioned magnet 23 or almost parallel.
In addition, the path of an above-mentioned balancing gate pit 21 being located to setting pressure side path 13 midway.That is, above-mentioned setting pressure side path 13 is divided into upstream portion 13a and downstream portion 13b, and in Yi balancing gate pit 21, is provided with inflow entrance 25 and flow export 26, and inflow entrance 25 is connected with above-mentioned upstream portion 13a, and flow export 26 is connected with above-mentioned downstream portion 13b.
In addition, the path of above-mentioned another balancing gate pit 22 being located to detection side path 14 midway.That is, above-mentioned detection side path 14 is divided into upstream portion 14a and downstream portion 14b, and in another balancing gate pit 22, inflow entrance 27 and flow export 28 is set, and inflow entrance 27 is connected with above-mentioned upstream portion 14a, and flow export 28 is connected with above-mentioned downstream portion 14b.
Therefore, from the upstream portion 13a of setting pressure side path 13, through the pressure current inflow entrance 25 inflow one balancing gate pits 21, know from experience and flow out to above-mentioned downstream portion 13b from flow export 26, and in Yi balancing gate pit 21, produce flowing of fluid.
In addition, from the upstream portion 14a of detection side path 14, through the pressure current of inflow entrance 27 another balancing gate pits 22 of inflow, know from experience and flow out to above-mentioned downstream portion 14b from flow export 28, and in another balancing gate pit 22, also produce flowing of fluid.
As mentioned above, if produce flowing of pressure fluid in Liang balancing gate pit 21,22,, owing to passing through the effect of this fluid, diaphragm 20, magnet 23 and reed contact switch 24 all can be more than the temperature for pressure fluid, so there will not be the situation of abnormal high temperature.
Therefore,, when having used electronic component in switching mechanism, can not affect because extreme temperature rises the performance of this electronic component etc.In addition, because diaphragm 20 membrane elements such as grade can not be exposed in high temperature yet, so also can not affect the elasticity of diaphragm 20 grades.
In addition, in this second execution mode, although the pressure fluid that all circulates in Liang balancing gate pit 21,22 also can make only circulation in being provided with a balancing gate pit 21 of reed contact switch 24 of pressure fluid.
In addition, in this second execution mode, when object is close to detection mouth 16, magnet 23 approaches reed contact switch 24 to switch to on-state, and because this point is identical with the first execution mode, therefore description is omitted.
In addition, in above-mentioned first, second execution mode, although magnet 23 is located to a side of the above-mentioned diaphragm 20 of 21 sides towards balancing gate pit, also magnet 23 can be imbedded in the membrane elements such as diaphragm.In addition, this magnet 23 can be permanent magnet or electromagnet.
In the 3rd execution mode shown in Fig. 3, reed contact switch 24 is located to the outside of shell 19, and magnet 23 is located in a balancing gate pit 21 freely to rotate.And, be located at the action pin 29 of diaphragm 20 and the rotating fulcrum 23a of this magnet 23 end opposite, be that free end 23b contacts.
Mark 30 in figure is spring, under the elastic force effect of this spring 30, the free end 23b of magnet 23 is always contacted with action pin 29.
In addition, the level height of the rotating fulcrum 23a of above-mentioned magnet 23 and terminal 24a, the 24b of above-mentioned reed contact switch 24 is almost identical.Like this, when magnet 23 is centered by this rotating fulcrum 23a, above-mentioned free end 23b describes circular arc, magnet 23 in Fig. 3 during approximate horizontal, magnet 23 and reed contact switch 24 over against.
Therefore, along with the pressure rise of another balancing gate pit 22, the Direction distortion of diaphragm 20 Xiang Yi balancing gate pits 21, action pin 29 move along with this distortion so that magnet 23 overcomes the elastic force of spring 30 and rotates, make magnet 23 and reed contact switch 24 over against.Like this, by make magnet 23 and reed contact switch 24 over against, reed contact switch 24 carries out ON Action.
In the 3rd above-mentioned execution mode, can set tinily the angle of rotation of magnet 23, correspondingly, can the deflection of diaphragm 20 be controlled very littlely.Therefore, in the 3rd execution mode, also can realize the effect identical with above-mentioned first, second execution mode.
In addition, although in the above-described 3rd embodiment, reed contact switch 24 is located to the outside of a balancing gate pit 21, also this reed contact switch 24 can be located to the inside of an above-mentioned balancing gate pit 21.
And, if reed contact switch 24 is located to the outside of balancing gate pit 21, to compare with being located at its inside, the volume of Ke Shi balancing gate pit 21 relatively reduces.The volume of Ruo Shi balancing gate pit 21 reduces, and has advantages of and can improve the response that diaphragm changes pressure.
On the other hand, due to when reed contact switch 24 is located to the inside of balancing gate pit 21, this reed contact switch 24 can be cooling by the pressure fluid in the balancing gate pit 21 that flows through, so have advantages of that reed contact switch 24 is difficult for breaking down.In addition, while also having in switch that this is taken a seat is located at adverse circumstances, reed contact switch 24 can not be exposed to the advantage in these adverse circumstances.
Other formations are identical with the second execution mode.
Although the membrane element in above-mentioned the first～three execution mode has all been used diaphragm 20, also can use ripple sylphon or by having the rubber of retractility, the film that resin is made concurrently.
Utilizability in industry
The present invention is suitable for detecting whether processing object is correctly placed on to the switching device of taking a seat on workbench most.
Claims (5)
1. the switching device of taking a seat, supply source at pressure fluid connects setting pressure side path and detection side path side by side, and be provided with setting pressure adjusting device in above-mentioned setting pressure side path, in detection side path, be provided with detection mouth, above-mentioned setting pressure side path is connected with the balancing gate pit by having flexible membrane element division, detection side path is connected with another balancing gate pit being divided by above-mentioned membrane element, above-mentioned membrane element is because the pressure differential of above-mentioned a pair of balancing gate pit deforms, and be provided with the switching mechanism that carries out switch motion by the distortion of above-mentioned membrane element, according to the pressure differential between the above-mentioned a pair of balancing gate pit of the motion detection of this switching mechanism, wherein,
Above-mentioned switching mechanism consists of magnet and reed contact switch,
Above-mentioned magnet is fixed on above-mentioned membrane element,
Above-mentioned reed contact switch keeps the state of its length direction or almost parallel parallel with above-mentioned magnet and is relative with above-mentioned magnet,
Corresponding to the distortion of above-mentioned membrane element, change the relative spacing of above-mentioned magnet and above-mentioned reed contact switch, make switching mechanism carry out switch motion.
2. the switching device of taking a seat as claimed in claim 1, it is characterized in that, in arbitrary balancing gate pit in above-mentioned a pair of balancing gate pit, be provided with above-mentioned magnet, and be provided with above-mentioned reed contact switch outside Gai balancing gate pit and in the position that can carry out by above-mentioned magnet is approached switch motion.
3. the switching device of taking a seat as claimed in claim 1, is characterized in that, in the arbitrary balancing gate pit in above-mentioned a pair of balancing gate pit, is provided with above-mentioned switching mechanism.
4. the switching device of taking a seat as described in any one in claim 1～3, it is characterized in that, at least one balancing gate pit in above-mentioned a pair of balancing gate pit arranges inflow entrance and flow export, these two mouths are connected in above-mentioned setting pressure side path or detection side path midway, pressure fluid is passed through in an above-mentioned balancing gate pit, utilize this pressure fluid to carry out cooling to above-mentioned switching mechanism or membrane element.
5. the switching device of taking a seat, supply source at pressure fluid connects setting pressure side path and detection side path side by side, and be provided with setting pressure adjusting device in above-mentioned setting pressure side path, in detection side path, be provided with detection mouth, above-mentioned setting pressure side path is connected with the balancing gate pit being divided by membrane element, detection side path is connected with another balancing gate pit being divided by membrane element, above-mentioned membrane element is because the pressure differential of above-mentioned a pair of balancing gate pit deforms, and be provided with the switching mechanism that carries out switch motion by the distortion of above-mentioned membrane element, according to the pressure differential between the above-mentioned a pair of balancing gate pit of the motion detection of this switching mechanism, wherein,
Above-mentioned switching mechanism consists of magnet and reed contact switch,
Above-mentioned reed contact switch is arranged on balancing gate pit's side,
Above-mentioned magnet is located in an above-mentioned balancing gate pit rotationally corresponding to the distortion of membrane element, and according to its turned position make this magnet and reed contact switch over against.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013087126A JP6456014B2 (en) | 2013-04-18 | 2013-04-18 | Seating switch device |
| JP2013-087126 | 2013-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104112625A true CN104112625A (en) | 2014-10-22 |
| CN104112625B CN104112625B (en) | 2018-11-23 |
Family
ID=51709370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410271205.3A Active CN104112625B (en) | 2013-04-18 | 2014-04-18 | It takes a seat switching device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6456014B2 (en) |
| CN (1) | CN104112625B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59139936U (en) * | 1983-03-09 | 1984-09-19 | 日本電気株式会社 | Verofram vacuum switch |
| CN2284446Y (en) * | 1996-07-08 | 1998-06-17 | 常文恕 | Flow switch senser |
| JP2000156140A (en) * | 1998-11-17 | 2000-06-06 | Nippon Kuatsu System Kk | Gas pressure switch |
| CN1992122A (en) * | 2005-12-29 | 2007-07-04 | 李火荣 | Flow switch |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5060558U (en) * | 1973-09-28 | 1975-06-04 | ||
| JPS54180953U (en) * | 1978-06-12 | 1979-12-21 | ||
| JPH0418950U (en) * | 1990-06-08 | 1992-02-18 | ||
| JPH0945192A (en) * | 1995-07-31 | 1997-02-14 | Saginomiya Seisakusho Inc | Micro pressure switch |
| US6089098A (en) * | 1998-04-16 | 2000-07-18 | Dwyer Instruments, Inc. | Differential pressure switch having an isolated hall effect sensor |
-
2013
- 2013-04-18 JP JP2013087126A patent/JP6456014B2/en active Active
-
2014
- 2014-04-18 CN CN201410271205.3A patent/CN104112625B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59139936U (en) * | 1983-03-09 | 1984-09-19 | 日本電気株式会社 | Verofram vacuum switch |
| CN2284446Y (en) * | 1996-07-08 | 1998-06-17 | 常文恕 | Flow switch senser |
| JP2000156140A (en) * | 1998-11-17 | 2000-06-06 | Nippon Kuatsu System Kk | Gas pressure switch |
| CN1992122A (en) * | 2005-12-29 | 2007-07-04 | 李火荣 | Flow switch |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014212005A (en) | 2014-11-13 |
| CN104112625B (en) | 2018-11-23 |
| JP6456014B2 (en) | 2019-01-23 |
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