CN201533299U - Contactless press button switch - Google Patents
Contactless press button switch Download PDFInfo
- Publication number
- CN201533299U CN201533299U CN2009203152848U CN200920315284U CN201533299U CN 201533299 U CN201533299 U CN 201533299U CN 2009203152848 U CN2009203152848 U CN 2009203152848U CN 200920315284 U CN200920315284 U CN 200920315284U CN 201533299 U CN201533299 U CN 201533299U
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- permanent magnet
- switch
- button
- contactless
- button switch
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Abstract
The utility model relates to a photoelectric switch. The utility model discloses a contactless press button switch against the defect of low reliability of contact switch in prior art. The technical scheme provided by the utility model is a contactless press button switch, which includes a press-button, a base, at least one luminous tube installed in the base and a corresponding receiving tube, and a light hiding column equipped in the luminous tube and collection tube light path; the luminous tube is connected to the power supply, and the collection tube outputs a switch signal, and the light hiding column is linked with the press-button, and one end of the light hiding column is installed with a permanent magnet, and another permanent magnet is installed at the position the base corresponding to the permanent magnet, and the permanent magnet and the other permanent magnet have identical polarity. The utility model has superior characteristics of non-elastic fatigue, the output switch signal can suspendingly outputs cooperated with improvement of the electronic circuit, and has the switch capability of photoelectric isolation independent contactless bidirectional conductance, and can be directedly applied in the matrix switch and other control circuits regardless of polarity.
Description
Technical field
The utility model relates to contactless push-button switch, particularly a kind of optoelectronic switch.
Background technology
Small-sized contact switch (such as 6X6mm type sensitive switch etc.) because cost simple in structure is low, is widely used in the electronic applications, as instrument panel operation button etc.But mainly there are two defectives in this class contact switch: one, because of adopting the working method of conductor contact conduction, because mechanical wear and arc erosion and corrosive gas effect reduce the life-span of conductive contact, it is unreliable to work, and easily loses efficacy.The 2nd, the resetting device of hand switch generally adopts flexible member, easily produces fatigue deformation or the damage that fractures, and the life-span is also lower.When above-mentioned situation occurring, all can cause the global failure of this switch.Though in electronic product and system, contact switch is used very extensively, simultaneously, the failure conditions of contact switch also occurs very generally and serious.Therefore, the problem that this class switch exists can make the electronic equipment fault take place frequently, and to using and safeguarding and bring great inconvenience, also can cause economic loss simultaneously.
Contactless class switch does not just have these problems.Present contactless class switch mainly contains following several: a kind of is (as SJ ear type suddenly near the Switch noncontacting switch, the LJ inductive type, CJ capacitor types etc.), the operation principle of these noncontacting switches all belongs to electromagnetism and electrostatic induction type of action, adopts totally-enclosed mode, dustproof effect is better, but its internal circuit complexity, cost is higher, is mainly used in the industry automatic control as travel switch, limit switch reaches aspects such as numeration switch.Second kind is grooved correlation photoelectricity break-and-make switch and reflection-type optoelectronic switch, and they also are noncontacting switches, all adopt photovoltaic work.This class switch is because aspect specific (special) requirements such as operation principle and application, photoelectric cell and light path system must be directly exposed in the external environment, be very easy to be subjected to various mechanical shocks, high light, the influence of dust, greasy dirt etc. easily causes faults such as malfunctioning out of control and damage.Though above-mentioned 2 kinds of switches all belong to noncontacting switch, they are not the noncontacting switches of hand push button manipulation type.On the other hand, the output of a lot of noncontacting switches (three-way once-through type) does not possess the unsettled and two-way admittance ability of two line ends.And real push-button two-way noncontacting switch also is difficult to see at present, but very needs this switch again in working control is used.
The utility model content
Technical problem to be solved in the utility model just provides a kind of contactless push-button switch, improves the reliability of switch, satisfies the needs of practical application.
The utility model solve the technical problem, and the technical scheme of employing is, a kind of contactless push-button switch comprises button, pedestal, is installed in the shading column that at least 1 luminous tube and corresponding 1 in the pedestal receives only pipe, places luminous tube and receiving tube light path; Described luminous tube is connected with power supply, described receiving tube output switching signal, described shading column and button interlock; It is characterized in that described shading column one end is equipped with permanent magnet, with this permanent magnet correspondence position another permanent magnet is installed in the described pedestal, described permanent magnet and described another permanent magnet have identical polar;
Further, described contactless push-button switch is except button and shading column, and other parts are potted in the pedestal;
Concrete, described receiving tube is the two-way admittance pipe;
Concrete, described another permanent magnet is installed in base bottom;
Further, described button is installed on the dust cap, and described dust cap covers on the pedestal;
Further, 2 luminous tubes and corresponding respectively 2 are installed in the described pedestal and receive only pipe;
Further, described 2 receive only pipe employing output in parallel.
The beneficial effects of the utility model are, rely on the permanent magnet magnetic force effect to carry out switch and reset, and have the good characteristic of nonelastic fatigue, compare with metal spring, shell fragment and working of plastics, and reseting elasticity is stable, do not have tiredly, do not fracture, and mechanical endurance is longer.By the sealing process of resin embedding, make switch have certain dustproof effect and anti-external interference ability to light path and main part.Cooperate the improvement of electronic circuit, the output switching signal output that can suspend possesses the switching capability that photoelectricity is isolated the contactless two-way admittance of independence, and polarity does not directly apply in the control circuit such as matrix switch.Contactless push-button switch of the present utility model both can directly be used manual operation, also can be installed in the mechanical device, used as position probing and limit switch.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the electrical block diagram of embodiment 1;
Fig. 3 is the electrical block diagram of embodiment 2;
Fig. 4 is the electrical block diagram of embodiment 3.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail.
The utility model improves the structure of contact switch, light path by the control light-sensitive element realizes the output of noncontacting switch signal, the ingenious design of combined circuit, can realize the suspension output and the two-way admittance function of switching signal, the advantage that had both had noncontacting switch has overcome the shortcoming of push-button switch again.
This routine contactless push-button switch is by button 21, pedestal 10, be installed in 1 luminous tube U1-1 and corresponding 1 in the pedestal and receive only pipe U1-2, place the shading column 31 etc. of luminous tube and receiving tube light path to constitute, as shown in Figure 1.Among Fig. 1, button 21 is installed in and constitutes an integral body on the dust cap 20, is button, also is dust cap, and dustproof housing 20 can prevent that on pedestal dust from entering push-button switch.These routine shading column 31 1 ends are equipped with permanent magnet 32, the bottom 14 and permanent magnet 32 correspondence positions of pedestal 10 are equipped with another permanent magnet 12, permanent magnet 32 has identical polar with another permanent magnet 12, repulsive force between them makes shading column 31 be in the extreme higher position, block the light path between luminous tube U1-1 and the receiving tube U1-2, receiving tube U1-2 output switching signal makes pin 5 and pin 6 be in off-state.When pressing the button 21, shading column 31 moves downward, and the infrared ray of luminous tube U1-1 emission is received pipe U1-2 through the light guide 30 of shading column 31, receiving tube U1-2 output switching signal, and pin 5 and pin 6 are in conducting state.Another also has been installed to luminous tube U2-1 and receiving tube U2-2 (not shown in figure 1) in this routine pedestal 10, receiving tube U1-2 and receiving tube U2-2 adopt inverse parallel output, cooperate diode D2, diode D3 to realize two-way admittance and suspension output function with 2 general unidirectional conducting receiving tubes, circuit structure as shown in Figure 2.Pin 1 is connected positive source+E and negative pole E respectively with pin 2 among the figure, and for luminous tube provides electric current, resistance R 1 is a current-limiting resistance.Increased by 4 diode indicator light L1, L2, L3, L4 and current-limiting resistance R3, R4 among Fig. 2, can realize the indication of on off state according to the different connected modes of port 3 and port 4.Circuit shown in Figure 2 and whole components and parts can adopt epoxy resin 11 to be potted in the pedestal 10, can improve the reliability of switch, enlarge the scope of application.As shown in Figure 1.
This routine circuit structure as shown in Figure 3, the triode Q1 among the figure, triode Q2 and biasing resistor R3, R4 form amplifying circuit, can improve the load capacity of this routine switch, other structures of this example are referring to the associated description of embodiment 1.
In this example, receiving tube U1-2 and receiving tube U2-2 adopt two-way admittance pipe (two-way admittance light activated power thyristor pipe), and its output can output directly in parallel be realized two-way admittance and suspension output function, and other structures of this example are referring to the associated description of embodiment 1.
Claims (7)
1. contactless push-button switch comprises button, pedestal, is installed in the shading column that at least 1 luminous tube and corresponding 1 in the pedestal receives only pipe, places luminous tube and receiving tube light path; Described luminous tube is connected with power supply, described receiving tube output switching signal, described shading column and button interlock; It is characterized in that described shading column one end is equipped with permanent magnet, with this permanent magnet correspondence position another permanent magnet is installed in the described pedestal, described permanent magnet and described another permanent magnet have identical polar.
2. a kind of contactless push-button switch according to claim 1 is characterized in that described contactless push-button switch is except button and shading column, and other parts are potted in the pedestal.
3. a kind of contactless push-button switch according to claim 1 is characterized in that described receiving tube is the two-way admittance pipe.
4. a kind of contactless push-button switch according to claim 1 is characterized in that described another permanent magnet is installed in base bottom.
5. a kind of contactless push-button switch according to claim 1 is characterized in that described button is installed on the dust cap, and described dust cap covers on the pedestal.
6. according to claim 1,2,3,4 or 5 described a kind of contactless push-button switches, it is characterized in that, 2 luminous tubes and corresponding respectively 2 are installed in the described pedestal receive only pipe.
7. a kind of contactless push-button switch according to claim 6 is characterized in that, described 2 receive only pipe adopts output in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203152848U CN201533299U (en) | 2009-11-20 | 2009-11-20 | Contactless press button switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203152848U CN201533299U (en) | 2009-11-20 | 2009-11-20 | Contactless press button switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201533299U true CN201533299U (en) | 2010-07-21 |
Family
ID=42528698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203152848U Expired - Fee Related CN201533299U (en) | 2009-11-20 | 2009-11-20 | Contactless press button switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201533299U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474291A (en) * | 2013-08-30 | 2013-12-25 | 北京威凯龙科技发展有限公司 | Magnetic button |
| CN104155090A (en) * | 2014-08-15 | 2014-11-19 | 宁波昌隆机电有限公司 | Limiting switch detection device |
| CN115971003A (en) * | 2022-12-29 | 2023-04-18 | 王道胜 | Photovoltaic film assembly coating process |
-
2009
- 2009-11-20 CN CN2009203152848U patent/CN201533299U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474291A (en) * | 2013-08-30 | 2013-12-25 | 北京威凯龙科技发展有限公司 | Magnetic button |
| CN104155090A (en) * | 2014-08-15 | 2014-11-19 | 宁波昌隆机电有限公司 | Limiting switch detection device |
| CN104155090B (en) * | 2014-08-15 | 2018-09-28 | 宁波昌隆机电有限公司 | A kind of limit switch detection device |
| CN115971003A (en) * | 2022-12-29 | 2023-04-18 | 王道胜 | Photovoltaic film assembly coating process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 617000 No. 90, Taoyuan Road, Panzhihua, Sichuan Co-patentee after: Pangang Group Institute Co., Ltd. Patentee after: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. Co-patentee after: Pangang Group Steel Vanadium & Titanium Co., Ltd. Address before: 617000 No. 90, Taoyuan Road, Panzhihua, Sichuan Co-patentee before: Pangang Group Institute Co., Ltd. Patentee before: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. Co-patentee before: Panzhihua New Steel & Vanadium Co., Ltd. |
|
| 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: 20100721 Termination date: 20161120 |