CN1476030A - Multii-directional input device - Google Patents
Multii-directional input device Download PDFInfo
- Publication number
- CN1476030A CN1476030A CNA031784569A CN03178456A CN1476030A CN 1476030 A CN1476030 A CN 1476030A CN A031784569 A CNA031784569 A CN A031784569A CN 03178456 A CN03178456 A CN 03178456A CN 1476030 A CN1476030 A CN 1476030A
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- inputting device
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- 239000002131 composite material Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
A multidirectional input device to surely prevent looseness without sacrificing operability even if the size of an operation body and the weight thereof are increased is provided with: a housing (1); the operation body (3) having a drive part (4), a first operation shaft (5) and an operation knob (6) mounted to the tip of the first operation shaft (5); a second operation shaft (7) vertically movably held in a guide hole (3a) formed in the operation body (3); and a coil spring (9) mounted between the upper surface of the housing (1) and the operation knob (6). By pressing an arbitrary position of the operation knob (6) to tilt the first operation shaft (5), the drive part (4) selectively turns on a plurality of push-switches (S2) corresponding to the tilting direction, and by pressing a push-knob (8) mounted to the upper end of the second operation shaft (7) downward, the lower end (7a) of the second operation shaft turns on a push-switch (S1).
Description
Technical field
The present invention relates to be used in the multi-directional inputting device of the input operation part etc. of various electronic equipments, relate in particular to and to carry out the multi-directional inputting device that what is called is toppled over the different input actions of operation and pressing operation.
Background technology
Past, this multi-directional inputting device, for example main composition partly is:
Shell has peristome above it, and, the central authorities of inner bottom surface and be provided with lifting on every side respectively and detect the push-button switch of usefulness and a plurality ofly topple over the push-button switch that detects usefulness;
Operating body, it has the pilot hole of break-through up and down, is made of the 1st operating axis that is housed in the drive division in the shell and be connected, give prominence to from the peristome of shell with this drive division simultaneously;
The 2nd operating axis, it is by in the chimeric pilot hole that remains on this operating body and can be up and down, and the bottom snaps on the push-button switch that lifting detects usefulness, and the upper end is outstanding from the 1st operating axis; And
Helical spring, it is set up in the enclosure, is installed between drive division and the shell inner bottom surface.
Above-mentioned helical spring applies elastic force upwards to drive division, on the end face that is pressed into above the drive division in the shell, prevents that with this spring operating body from rocking.
The multi-directional inputting device of this structure, when to the operating axis that is connected with drive division when predetermined direction is toppled over operation, be pressed selectively with the corresponding push-button switch of toppling over detection usefulness of this direction, become on-state, and, when pushing the 2nd operating axis downwards, utilize the bottom to push the push-button switch that lifting detects usefulness, become on-state,, and also can carry out input action by pressing operation not only by toppling over operation.
But, the multi-directional inputting device in above-mentioned past, because its structure is, the drive division of operating body is accommodated the inside of shell, between this drive division and shell inner bottom surface, arranged topple over detect usefulness detect the push-button switch of usefulness with lifting, so, accommodate the restriction that height space that helical spring uses is subjected to the enclosure space, the big helical spring of elastic force is installed in limited like this space, is actually very difficult.In such structure, the deadweight of operating body does not have much problems when not too big, but, such when for example using as for motor vehicle multi-directional inputting device, be purpose to improve operability, set under the situation of long operating axis, because the deadweight of operating body integral body increases, with helical spring elastic force supporting incessantly, so the problem of appearance is that the operating body generation of non-operating state is rocked.
And hypothesis can strengthen elastic force by increasing the change in design in above-mentioned helical spring line footpath etc., also can produce other problem, promptly the elastic force owing to the per unit displacement increases, so, promptly enable to prevent rocking of operating body, operating physical force is excessively increased, the operability of operating body is worsened.
The content of invention
The present invention proposes in view of the actual conditions of this background technology just, even its purpose is to provide a kind of operating body to increase, deadweight increases, and also can not influence its operability, and can prevent the multi-directional inputting device that rocks conscientiously.
In order to achieve the above object, multi-directional inputting device of the present invention has:
Shell has peristome above it, and the central authorities of inner bottom surface and be provided with the lifting detecting element on every side respectively and a plurality ofly topple over detecting element,
Operating body, it has the pilot hole of break-through up and down, has the operating knob on drive division and the 1st operating axis of giving prominence to from above-mentioned peristome that is housed in the above-mentioned shell and the leading section that is arranged on the 1st operating axis simultaneously;
The 2nd operating axis, it remains on also can be up and down in the above-mentioned pilot hole, and lower end part is in above-mentioned shell, and the upper end is outstanding from above-mentioned the 1st operating axis simultaneously; And
The elastic reset part, it is installed between the top of above-mentioned shell and the aforesaid operations button, simultaneously this operating knob is applied elastic force upwards, on the top board face that is pressed into above the above-mentioned drive division in this shell.
By the aforesaid operations button is carried out pressing operation to predetermined direction, above-mentioned the 1st operating axis is toppled over, like this, make and the corresponding above-mentioned detecting element action of toppling over of this direction with above-mentioned drive division; By the upper end of above-mentioned the 2nd operating axis of downward pressing operation, make above-mentioned lifting detecting element action with the bottom of this operating axis.
If adopt the multi-directional inputting device of this spline structure, then the elastic reset arrangement of parts on shell and between the operating knob, can guarantee to accommodate the degree of freedom on the required height space of elastic reset part, so, the big elastic reset part of elastic force can be installed in this space.Therefore, as when using, in order to improve operability as for motor vehicle multi-directional inputting device, under the situation of setting long operating axis, even operating body increases, deadweight increases, also can firmly support operating body, operating body rocks in the time of preventing non-operating state conscientiously.And, can guarantee the design freedom of elastic reset part, so that make its operating physical force reach optimum value according to the deadweight of operating body.So can make the good multi-directional inputting device of the operability of operating body.
And, in said structure, be preferably in above-mentioned enclosure and form guide part, on above-mentioned drive division, form restrictions, so that fasten with this guide part, pivoting of aforesaid operations body limited,, then can limit operating body and beyond predetermined direction, topple over if adopt this structure, so, can make when operating knob operated, not have misoperation, the multi-directional inputting device that has good stability.
Moreover, in said structure, wish to adopt helical spring as above-mentioned elastic reset part, if adopt this structure, then can realize operating knob is applied the upwards structure of elastic force, can prevent rocking of operating body conscientiously, can reduce the cost of multi-directional inputting device with simple structure.
And, in said structure, hope forms a kind of groove respectively on above-mentioned shell and below the aforesaid operations button, so that above-mentioned helical spring both ends are engaged, if adopt this structure, helical spring breaks away from the time of preventing conscientiously then that operating body from operating, so, can realize toppling over the multi-directional inputting device that does not have misoperation, has good stability when operating.
Moreover, in said structure, preferably above-mentioned lifting detecting element and above-mentionedly topple over detecting element and adopt the push-button switch only can move by the downward pressing operation of predetermined stroke, the actuating length of this lifting detecting element is set at is longer than the actuating length that this topples over detecting element, if adopt this structure, then by operating body is toppled over operation to predetermined direction, push with this direction is corresponding with driving body and to topple over detecting element and make its when action, can definitely prevent following shortcoming, promptly the bottom of the 2nd operating axis of toppling over simultaneously with this operating body is to bottom offset, even push the lifting detecting element slightly, also can cause the action of lifting detecting element.So can realize not having the multi-directional inputting device of misoperation, good stability.
Brief description of drawings
Fig. 1 is a cutaway view of having assembled the composite operation type electrical part of the multi-directional inputting device that relates to the embodiment of the present invention example.
Fig. 2 is an exploded perspective view of having assembled the composite operation type electrical part of the multi-directional inputting device that relates to the embodiment of the present invention example.
Fig. 3 relates to the cutaway view of the shell that multi-directional inputting device had of embodiments of the present invention example.
Fig. 4 relates to the action specification figure of the multi-directional inputting device of embodiments of the present invention example.
The working of an invention mode
Following with reference to accompanying drawing, describe embodiments of the present invention in detail.Fig. 1 is a cutaway view of having assembled the composite operation type electrical part of the multi-directional inputting device that relates to the execution mode example.Fig. 2 is an exploded perspective view of having assembled the composite operation type electrical part of the multi-directional inputting device that relates to the execution mode example.Fig. 3 is the cutaway view of the shell that has of this multi-directional inputting device.Fig. 4 is the action specification figure of this multi-directional inputting device.
Composite operation type electrical part shown in these figure makes up the rotary encoder in the multi-directional inputting device of inboard and the outside and constitutes, and multi-directional inputting device and rotary encoder can be operated respectively independently.
At first, inboard multi-directional inputting device is described, the main composition of this multi-directional inputting device partly is: plastic shell 1, printed circuit board (PCB) 2 have operating body the 3, the 2nd operating axis 7 of the 1st operating axis 5 grades and helical spring 9 etc.Details are as follows to these parts, formed open pore 1a in the upper central portion of shell 1, formed four gathering sill 1b on the madial wall of this open pore 1a side, and make it keep 90 degree each other uniformly-spaced.(referring to Fig. 3).Moreover, on shell 1, formed circular spring fastening groove 1c and made it surround open pore 1a.Printed circuit board (PCB) 2 is mounted to the state that the peristome of shell 1 downside is kept off plug.Installing on the inner bottom surface of the reception room that forms between these shells 1 and the printed circuit board (PCB) 2: the lifting that is positioned at its central portion detects the push-button switch S1 (lifting detecting element) of usefulness and is positioned at around this push-button switch S1 and four of being positioned on the direction of each gathering sill 1b topple over the push-button switch S2 (toppling over detecting element) that detect usefulness.These push-button switches S1, S2 only are and by predetermined stroke the button down as transmission device are carried out the structure that pressing operation can be connected, and back-moving spring has been installed in its inside, is used to make button to return to initial condition.But lifting detects the actuating length of the push-button switch S1 of usefulness, sets longlyer than toppling over the push-button switch S2 that detects usefulness.
The component part of operating body 3 is: be housed in the inside of shell 1 drive division 4, be connected from open pore 1a outstanding the 1st operating axis 5 and be pressed into operating knob 6 in the peripheral part of the 1st operating axis 5 front ends of this drive division 4.On drive division 4 and the 1st operating axis 5, be provided with the pilot hole 3a of break-through on above-below direction, below operating knob 6, formed circular spring fastening groove 6a.And, on the outer peripheral face of drive division 4, formed four protuberance 4a and made it keep 90 degree each other uniformly-spaced, formed recess 4b in the inner bottom surface central authorities of drive division 4.The operating body 3 of this structure, drive division 4 are housed in the shell 1 and can displacements, simultaneously, are arranged to the state that the 1st operating axis 5 projects upwards by open pore 1a, thereby remain in the shell 1 and topple over freely.
The both ends of helical spring 9 utilize the spring fastening groove 1c of shell 1 and the spring fastening groove 6a of operating knob 6 only to be blocked, and utilize the elastic force of this helical spring 9 that operating knob 6 is applied elastic force upwards.And, like this, because 9 pairs of operating knobs 6 of helical spring apply elastic force upwards, so, be pressed against above the drive division 4 on the top board face in the shell 1, prevent that operating body 3 rocks under non-operating state.Under this non-operating state, the gap that the top maintenance of following and push-button switch S1, the S2 of drive division 4 is predetermined, each protuberance 4a of drive division 4 is inserted into respectively in each gathering sill 1b of madial wall of shell 1 simultaneously, and operating body 3 is stopped operating in a circumferential direction.
The 2nd operating axis 7 remain on the state of the pilot hole 3a tabling of operating body 3 down and move up and down freely, its bottom 7a is installed in the recess 4b of drive division 4 and can prevents to extract, it is spherical that its bottom 7a forms semicircle, be overlapped on the button of push-button switch S1, the 2nd operating axis 7 obtains elastic force upwards by being housed in the back-moving spring in this push-button switch S1.And the upper end of the 2nd operating axis 7 is outstanding from the 1st operating axis 5, and button 8 has been installed on its front end.
In the multi-directional inputting device of this structure, Fig. 1 represents that operating knob 6 and button 8 all do not have operated non-operating state, and in the case, the drive division 4 of operating body 3 is not pushed arbitrary push-button switch S2, and each push-button switch S2 all is a dissengaged positions.And the bottom 7a of the 2nd operating axis 7 utilizes the restoring force of push-button switch S1 and is maintained on the top position, and this push-button switch S1 also is a dissengaged positions.
Under this non-operating state, as if the optional position to operating knob 6, for example the right positions shown in the arrow of Fig. 4 is carried out pressing operation, and then the 1st operating axis 5 is toppled over along gathering sill 1b from neutral position shown in Figure 1.Its result, operating body 3 is that fulcrum is tilted to the right with the top of drive division 4 that is positioned at a side opposite with toppling direction, pushes and toppling direction corresponding buttons switch S 2 below this drive division 4, so this switch S 2 is carried out ON Action.And,, then utilize the active force of helical spring 9 that operating body 3 is turned back on the neutral position if remove the above-mentioned pressing force that is added on the operating knob 6, simultaneously, the push-button switch S2 of ON Action has been carried out in the following disengaging of drive division 4, and this switch S 2 returns to the state of Fig. 1, becomes cut-out.Equally,, make with this direction corresponding buttons switch S 2 and carry out ON Action by change the pressing position of operating knob 6 all around, can be from the switching signal of these push-button switches S2 to outside output on/off.And, when operating body 3 is toppled over when operation to predetermined direction, the 2nd operating axis 7 is also toppled over together, but because as mentioned above, the preseting length of the actuating length of the push-button switch S1 of lifting detection usefulness is greater than the actuating length of toppling over the push-button switch S2 that detects usefulness, so the bottom 7a that utilizes the 2nd operating axis 7 is the button of pressing button switch S 1 slightly only, this push-button switch S1 does not carry out ON Action.
On the other hand, shown in the arrow of Fig. 1, if from the downward pressing button 8 of non-operating state, then the 2nd operating axis 7 moves down along the pilot hole 3a of operating body 3, its bottom 7a pressing button switch S 1, and like this, this switch S 1 is carried out ON Action.In the case, much bigger when the 2nd operating axis 7 downward amount of movements are operated than toppling over of aforesaid operations body 3, so, even the long push-button switch S1 of actuating length also can carry out ON Action conscientiously.And, if remove the above-mentioned pressing force that is added on the button 8, be contained in the back-moving spring among the push-button switch S1 in then utilizing, upwards push the 2nd operating axis 7 it is returned, simultaneously, this push-button switch S1 turns back to the state of Fig. 1, becomes cut-out.Like this, by the 2nd operating axis 7 is carried out pressing operation, also can be from the switching signal of push-button switch S1 to outside output on/off.
The rotary encoder in the outside below is described.This rotary encoder has and is arranged to the hollow shape external shell 10 that the shell 1 to above-mentioned multi-directional inputting device surrounds, and this external shell 10 is installed on the above-mentioned printed circuit board (PCB) 2.Externally give prominence on the housing 10 and be provided with cylindric guiding jetty 10a, ring-type operation part 11 rotates and is held freely on the outer peripheral face of this guiding jetty 10a.Above the outside of operation part 11, by cylindric binding part 12 knob 13 has been installed, the operating knob 6 of multi-directional inputting device is positioned at recess 1 3a of this knob 13.As shown in Figure 2, formed positioning convex 12a highlightedly on the internal perisporium that links part 12, kept 90 degree uniformly-spaced between it is mutual, these binding part 12 usefulness screws 14 are fixed on the knob 13.And, on the periphery wall of operation part 11, alternately formed fast in conjunction with pin 11a and fastening groove 11b, and the intervals that make it keep 45 degree between mutually, the positioning convex 12a that links part 12 is inserted in the fastening groove 11b of operation part 11, fashionable when firmly pressing, fast the claw card in conjunction with the upper end of pin 11a ends in the internal face upper end that links part 12, link carry out under part 12 and operation part 11 state that direction is positioned around fixing fast.
And the bottom of operation part is inserted into the inside of outside cover 10, and diagram is omitted, and slide is installed in the bottom of this operation part 11, and the while is formed on the printed circuit board (PCB) 2 with a plurality of switch figures that this slide carries out sliding contact.Like this, if knob 13 is operated, make the either direction rotation of operation part 11 in positive and negative, then slide slides on the switch figure, the corresponding pulse signal of rotation amount of output and operation part 11.In contrast, also can be installed to code plate the bottom of operation part 11, also can be arranged on the slide that carries out sliding contact with each switch figure on the printed circuit board (PCB) 2 simultaneously with a plurality of switch figures.
As mentioned above, according to the multi-directional inputting device that relates to the embodiment of the present invention example, helical spring 9 is set on shell 1 and between the operating knob 6, utilize this helical spring 9 to come operating body 3 is applied elastic force upwards, on the top board face that is pressed into above the drive division 4 in the shell 1, so, operating body 3 rocks in the time of preventing not operation.For this reason, utilize the wide height space in top of shell 1 can accommodate the helical spring 9 of resilient beam.Therefore, for example such under situation about using as for motor vehicle multi-directional inputting device, even in order to improve operability, and set the length overall that comprises the operating body 3 of the 1st operating axis 5 than under the long situation, also can stably support the operating body 3 after deadweight increases, can prevent rocking of under non-operating state operating body 3 conscientiously.And, can design helical spring elastic force according to the deadweight of operating body 3, make its operating physical force reach optimum value.So, can improve the operability of operating body 3.
And, in the above-described embodiment, the composite operation type electrical part that multi-directional inputting device is assembled into the rotary encoder inboard has been described, but other rotary operation type electric parts such as rotary switch also can be set, to replace the rotary encoder in its outside.And, self-evident, also can omit the outside electric parts of these rotary encoders and rotary switch etc., only use multi-directional inputting device individually.
The effect of invention
The present invention implements by mode described above, can obtain following effect.
On shell and between the operating knob, utilize the elastic reset arrangement of parts this elasticity multiple The position part is on the top board face that is pressed into above the drive division in the shell, so can guarantee to install The free degree on the height space that the elastic reset part is used, it is big elastic force to be installed in this space The elastic reset part. Therefore, for example when using as for motor vehicle multi-directional inputting device Like that, in order to improve operability, in the situation of setting long operating axis, even operating body Increase, deadweight increases also can stably support operating body, grasps in the time of conscientiously preventing non-operating state Do rocking of body. And, can guarantee the design freedom of elastic reset part, so that according to behaviour The deadweight of making body makes its operating physical force reach optimum value, so can realize that the operability of operating body is good Multi-directional inputting device.
Claims (5)
1, a kind of multi-directional inputting device is characterized in that having:
Shell has peristome above it, and the central authorities of inner bottom surface and be provided with the lifting detecting element on every side respectively and a plurality ofly topple over detecting element;
Operating body, it has the pilot hole of up and down break-through, has the drive division that is housed in the above-mentioned shell simultaneously and from outstanding the 1st operating axis of above-mentioned peristome be arranged on operating knob on the leading section of the 1st operating axis;
The 2nd operating axis, it is maintained at up and down in the above-mentioned pilot hole movably, and lower end part is in above-mentioned shell, and the upper end is outstanding from above-mentioned the 1st operating axis simultaneously; And,
The elastic reset part, it is installed between the top of above-mentioned shell and the aforesaid operations button, simultaneously this operating knob is applied elastic force upwards, on the top board face that is pressed into above the above-mentioned drive division in this shell;
By the aforesaid operations button is carried out pressing operation to predetermined direction, above-mentioned the 1st operating axis is toppled over, can make with this direction is corresponding by above-mentioned drive division and above-mentionedly topple over detecting element and move; By the upper end of above-mentioned the 2nd operating axis of downward pressing operation, above-mentioned lifting detecting element is moved.
2, multi-directional inputting device as claimed in claim 1 is characterized in that: form guide part in above-mentioned enclosure, and form restrictions in above-mentioned drive division, this restrictions and this guide part fasten, and the rotation around axle limits to the aforesaid operations body.
3, multi-directional inputting device as claimed in claim 1 or 2 is characterized in that: adopt helical spring as above-mentioned elastic reset part.
4, multi-directional inputting device as claimed in claim 3 is characterized in that: form groove respectively on above-mentioned shell and below the aforesaid operations button, be used for card and end above-mentioned helical spring both ends and carry out.
5, multi-directional inputting device as claimed in claim 1, it is characterized in that: only adopt the push-button switch that can move as above-mentioned lifting detecting element with above-mentionedly topple over detecting element, the actuating length of this lifting detecting element is set at is longer than the actuating length that this topples over detecting element by the downward pressing operation of predetermined stroke.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002212541A JP2004055392A (en) | 2002-07-22 | 2002-07-22 | Multidirectional input device |
| JP2002212541 | 2002-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1476030A true CN1476030A (en) | 2004-02-18 |
| CN1233007C CN1233007C (en) | 2005-12-21 |
Family
ID=31492062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03178456 Expired - Fee Related CN1233007C (en) | 2002-07-22 | 2003-07-17 | Multii-directional input device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004055392A (en) |
| CN (1) | CN1233007C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416729C (en) * | 2004-12-22 | 2008-09-03 | 阿尔卑斯电气株式会社 | Compound operation switch |
| CN102411397A (en) * | 2010-09-17 | 2012-04-11 | 阿尔卑斯电气株式会社 | Multi-way Input Device |
| CN102999083A (en) * | 2011-09-15 | 2013-03-27 | 阿尔卑斯电气株式会社 | Multi-direction input device |
| CN105513872A (en) * | 2015-12-31 | 2016-04-20 | 天津罗斯诺普信息技术有限公司 | Vessel dual operation switch |
| CN109580115A (en) * | 2018-12-27 | 2019-04-05 | 常州常工电子科技股份有限公司 | A kind of spy leakage device of band touching arousal function |
| CN111219746A (en) * | 2018-11-27 | 2020-06-02 | 广东百威电子有限公司 | Intelligent control knob of gas stove |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4703526B2 (en) * | 2006-09-13 | 2011-06-15 | 帝国通信工業株式会社 | Multifunctional electronic components |
| KR200447288Y1 (en) | 2009-03-30 | 2010-01-14 | 임하철 | Input device for voice notification device |
| KR101155265B1 (en) | 2010-12-28 | 2012-06-13 | 대성전기공업 주식회사 | Multi-Direction Switch |
| JP7077428B2 (en) * | 2019-02-07 | 2022-05-30 | アルプスアルパイン株式会社 | Input device |
-
2002
- 2002-07-22 JP JP2002212541A patent/JP2004055392A/en not_active Withdrawn
-
2003
- 2003-07-17 CN CN 03178456 patent/CN1233007C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416729C (en) * | 2004-12-22 | 2008-09-03 | 阿尔卑斯电气株式会社 | Compound operation switch |
| CN102411397A (en) * | 2010-09-17 | 2012-04-11 | 阿尔卑斯电气株式会社 | Multi-way Input Device |
| CN102411397B (en) * | 2010-09-17 | 2014-03-26 | 阿尔卑斯电气株式会社 | Multi-way input device |
| CN102999083A (en) * | 2011-09-15 | 2013-03-27 | 阿尔卑斯电气株式会社 | Multi-direction input device |
| CN102999083B (en) * | 2011-09-15 | 2014-11-26 | 阿尔卑斯电气株式会社 | Multi-direction input device |
| CN105513872A (en) * | 2015-12-31 | 2016-04-20 | 天津罗斯诺普信息技术有限公司 | Vessel dual operation switch |
| CN111219746A (en) * | 2018-11-27 | 2020-06-02 | 广东百威电子有限公司 | Intelligent control knob of gas stove |
| CN109580115A (en) * | 2018-12-27 | 2019-04-05 | 常州常工电子科技股份有限公司 | A kind of spy leakage device of band touching arousal function |
| CN109580115B (en) * | 2018-12-27 | 2019-09-24 | 常州常工电子科技股份有限公司 | A kind of spy leakage device of band touching arousal function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1233007C (en) | 2005-12-21 |
| JP2004055392A (en) | 2004-02-19 |
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