CN109786144A - A kind of key switch with multifunctional protection device - Google Patents
A kind of key switch with multifunctional protection device Download PDFInfo
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- CN109786144A CN109786144A CN201910188736.9A CN201910188736A CN109786144A CN 109786144 A CN109786144 A CN 109786144A CN 201910188736 A CN201910188736 A CN 201910188736A CN 109786144 A CN109786144 A CN 109786144A
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Abstract
The invention belongs to key switch field more particularly to a kind of key switch with multifunctional protection device.For the problem that in the prior art, cannot disconnect, must be replaced after protection act, high failure rate after switch circuit breaking.The technical scheme is that including shell, electromagnet is installed on the shell, one end of electromagnet is provided with guide plate spring, the guide plate spring other end is provided with guide metal, one end of guide metal connection guide plate spring is provided with armature, and electromagnet attracts armature to be switched when which is powered connection disconnects, and armature loses gravitation when power-off, switch is locked at this time, can not press.It may be implemented to disconnect automatically when switch circuit breaking, the safety of protection circuit and the effect for playing saving electric power.
Description
Technical field
Key switch field more particularly to a kind of key switch with multifunctional protection device.
Background technique
The word explanation of switch is to open and close, it also refers to that one can make open circuit, make current interruptions or make
Its electronic component for flowing to other circuits.Currently, the electric appliance type of market upper switch is relatively more, structure is different, but mostly
Lack reliable and stable protective device.
Now most of that defencive function is realized using fuse or by electronic circuit, such protected mode cannot
Realize power-off protection, if encountering power breakdown in the way used, user forgets to close in electric appliance, electric when power is restored
Device will start automatically in unattended situation, if electrical appliance is that the high-power electric appliances such as electromagnetic oven, hair dryer can have pole
Big security risk；It must be replaced after disposable protection element movement, but be many times the simultaneously non-product event by improper use
Barrier causes protection element to act, and there are irrationalities.Defencive function there are work unreliable, failure rate is realized using electronic circuit
The disadvantages of high.
Summary of the invention
Cannot disconnect after existing switch circuit breaking, must be replaced after protection act, high failure rate aiming at the problem that, it is of the invention
Purpose is:
A kind of key switch with multifunctional protection device is provided, can be disconnected automatically after making switch circuit breaking, switch is improved
Service life, reduce the failure rate of switch.
The technical solution adopted by the invention is as follows:
A kind of key switch with multifunctional protection device, including shell, the side of the interior of shell are provided with electricity
Magnet, one end of electromagnet are provided with guide plate spring, and the guide plate spring other end is connected with guide metal, the guide metal
One end of connection guide plate spring is provided with armature, and Metal pinch plate, the left end of Metal pinch plate or right end are provided in the shell
It is connect by spring with guide metal, the Metal pinch plate is provided with Card trough, and the left side in the Card trough is provided with left end
Protrusion, the left end convex upper portion are the face vertical with the inner wall of Card trough, and left end protrusion lower part is inclined-plane, in the Card trough
Right side be provided with right end protrusion, the right end convex upper portion is inclined-plane, and the lower part of right end protrusion is right end groove, the shell
Interior bottom is provided with snap-gauge spring, and the upper end of snap-gauge spring is connected with metal snap-gauge, is provided with snap-gauge on the metal snap-gauge
Protrusion, the snap-gauge protrusion is arranged in Card trough, and the contact of incline plane of snap-gauge protrusion and right end convex upper portion.
Electromagnet is fixed on the shell, and electromagnet can attract the armature on connection guide metal in the case where energization, this
When armature will drive guide metal and move left toward electromagnet direction until left stop, guide plate spring-compressed at this time, left buckle spring
It stretches, right buckle spring-compressed, then Metal pinch plate is moved to the left under the action of elastic force, presses metal snap-gauge, metal at this time
Snap-gauge protrusion on snap-gauge squeezes the inclined-plane of right end convex upper portion under the effect of the pressure and moves down, when snap-gauge protrusion is moved to
When the lower part right end groove of Card trough, snap-gauge protrudes out into right end groove, and metal snap-gauge is lockable, and can press reset at this time and open
Pass bounces metal snap-gauge, since the Card trough lower part of reset switch does not have right end groove, so reset switch will not be by metal
Buckle locks, and since the protrusion on reset switch squeezes the inclined-plane on Card trough, Metal pinch plate is moved to right, when Metal pinch plate moves on to the right side
When end groove leaves snap-gauge protrusion completely, metal snap-gauge bounces under the action of snap-gauge spring, plays the function of reset.Work as power-off
In the case where, electromagnet loses the attraction to armature, and guide metal moves right under the elastic force effect of guide plate spring, until
Guide plate spring is in free state, and the left buckle spring of Metal pinch plate left end and the right buckle spring of right end become freely at this time
State, Metal pinch plate are moved to right to right stop, and the snap-gauge protrusion on metal snap-gauge is stuck in the protrusion of the left end on Card trough at this time, at this time
Metal snap-gauge also just will be off-state, this avoid forgotten caused by turning off the switch after power-off always in state is bounced
Electric appliance is also in connected state after energization, if electrical appliance is high-power electric appliance such as electromagnetic oven, hair dryer etc., the technical solution
Electric appliance starts caused security risk automatically after power-off can be eliminated, and also saves the energy.And in the shape of power-off protection
Under state, metal snap-gauge can not be pressed artificially when being powered, and can prevent maloperation artificial during power-off.
Wherein, guide rail is provided in the shell, the guide metal is mounted on guide rail.
Using this scheme, the resistance that guide metal is received when moving left and right is smaller, is moved easily, and can prevent metal
Downward shift of the guide plate when moving left and right.
Wherein, the left end of the Metal pinch plate is provided with left buckle spring, and the other end of the left buckle spring connects gold
Belong to guide plate, the right end of Metal pinch plate is provided with right buckle spring, and the other end of the right buckle spring connects guide metal.
It using this scheme, is connect due to being all provided with spring in the left end of Metal pinch plate and right end with guide metal, gold
It is bigger to belong to the power that buckle is received when acting, improves sensitivity and accuracy.
Wherein, temperature relay is provided on the shell, the temperature relay is connected with electromagnet is fixed on shell
On.
Since electromagnet is easy to fever because of U=RI, when voltage is certain, resistance is smaller, and electric current is bigger, unit
The electric current that interface passes through is bigger, and enameled wire fever is bigger.And coil air gap is too big, iron core cutting magnetic line is insufficient, iron core
It is too big to design windage, it is serious to will also result in fever.And the copper of enameled wire is divided into new copper and recycling copper, recycle the impurity of copper compared with
More, electric conductivity is poor, and calorific value is big.After being connected to temperature relay on the device, when there is overload current, make its electromagnet
The temperature of upper winding increases, and at this moment relay can play the role of overload protection.
Wherein, the guide plate spring, left buckle spring, right buckle spring, snap-gauge spring material be 55Si2Mn spring
Steel.
Using this scheme, 55Si2Mn spring steel has preferable elastic strength and yield tensile ratio, moreover it is possible to anti-relaxation stability.
Wherein, the guide metal, Metal pinch plate, metal snap-gauge are galvanized sheet.
Using this scheme, galvanized sheet is to prevent surface of steel plate from prolonging its service life by corrosion, and zinc-plated is a kind of
Through frequently with economic and effective rust-proofing method.
Wherein, the material of the shell is ABS plastic.
Using this scheme, ABS plastic is the ternary polymerization of acrylonitrile (A), butadiene (B), styrene (S) three kinds of monomers
Object, three kinds of monomer relative amounts can arbitrarily change, and various resins are made.ABS is simultaneous there are three types of the common performance of constituent element, and A keeps its resistance to
It is chemical attack, heat-resisting, and have certain surface hardness, B makes it have high resiliency and toughness, and S makes it have thermoplastic
Machine-shaping characteristic simultaneously improves electrical property.Therefore ABS plastic is that a kind of raw material is easy to get, comprehensive performance is good, cheap.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1. metal snap-gauge also just will be off-state, this avoid forget to close after power-off always in state is bounced
Electric appliance is also in connected state after being powered caused by switch, if electrical appliance is high-power electric appliance such as electromagnetic oven, hair dryer etc.,
Electric appliance starts caused security risk automatically after the technical solution can eliminate power-off, and also saves the energy.
2. the resistance that guide metal is received when moving left and right is smaller, it is moved easily, and guide metal can be prevented in left and right
Downward shift when mobile.
3. metal snap-gauge can not be pressed artificially when being powered in the state of power-off protection, turnoff time can be prevented
Between artificial maloperation.
4. after being connected to temperature relay on the device, when there is overload current, making the temperature of winding on its electromagnet
It increases, at this moment relay can play the role of overload protection.
5.55Si2Mn spring steel has preferable elastic strength and yield tensile ratio, moreover it is possible to anti-relaxation stability.
6. galvanized sheet be to prevent surface of steel plate from prolonging its service life by corrosion, it is zinc-plated be it is a kind of through frequently with warp
It helps and effective rust-proofing method.
7.ABS plastics are the terpolymer of acrylonitrile (A), butadiene (B), styrene (S) three kinds of monomers, three kinds of monomers
Relative amount can arbitrarily change, and various resins are made.ABS is simultaneous there are three types of the common performance of constituent element, and A keeps its resistant to chemical etching, resistance to
Heat, and have certain surface hardness, B makes it have high resiliency and toughness, and S makes it have the machine-shaping characteristic of thermoplastic
And improve electrical property.Therefore ABS plastic is that a kind of raw material is easy to get, comprehensive performance is good, cheap.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is；Structural schematic diagram of the invention.
It is indicated in figure: 1. shells, 2. reset switches, 3. metal snap-gauges, 4. electromagnet, 5. armature, 6. left buckle springs,
7. right buckle spring, 8. guide plate springs, 9. snap-gauge springs, 10. left ends protrusion, 11. temperature relays, 12. guide rails, 13. snap-gauges
Protrusion, 14. right ends protrusion, 15. right end grooves, 16. guide metals, 17. Metal pinch plates.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should be noted that the relational terms on term " left side " and " right side " or the like are used merely to illustrate the relative position of object
Relationship, the direction or position that must be provided with without necessarily requiring or implying these objects.
It elaborates below with reference to Fig. 1 to the present invention.
A kind of key switch with multifunctional protection device, including shell 1, the side inside the shell 1 are provided with
Electromagnet 4, one end of electromagnet 4 are provided with guide plate spring 8, and 8 other end of guide plate spring is connected with guide metal 16, described
One end that guide metal 16 connects guide plate spring 8 is provided with armature 5, is provided with Metal pinch plate 17, Metal pinch plate in the shell 1
17 left end or right end are connect by spring with guide metal 16, and the Metal pinch plate 17 is provided with Card trough, the snap-gauge
Left side in slot is provided with left end protrusion 10, and raised 10 tops in the left end are the face vertical with the inner wall of Card trough, and left end is convex
Playing 10 lower parts is inclined-plane, and the right side in the Card trough is provided with right end protrusion 14, and the right end convex upper portion is inclined-plane, right end
The lower part of protrusion 14 is right end groove 15, and the bottom in the shell 1 is provided with snap-gauge spring 9, and the upper end of snap-gauge spring 9 connects
It is connected to metal snap-gauge 3, snap-gauge protrusion 13 is provided on the metal snap-gauge 3, the snap-gauge protrusion 13 is arranged in Card trough, and
The contact of incline plane of snap-gauge protrusion 13 and raised 14 tops of right end.
Electromagnet 4 is fixed on shell 1, and electromagnet 4 can attract the rank on connection guide metal 16 in the case where energization
Iron 5, at this moment armature 5 will drive guide metal 16 and be moved left toward 4 direction of electromagnet until left stop, guide plate spring 8 is pressed at this time
Contracting, left buckle spring 6 stretch, and right buckle spring 7 compresses, and then Metal pinch plate 17 is moved to the left under the action of elastic force, at this time
Metal snap-gauge 3 is pressed, the snap-gauge protrusion 13 on metal snap-gauge 3 squeezes the upper inclined surface of right end protrusion 14 simultaneously under the effect of the pressure
And move down, when snap-gauge protrusion 13 is moved to the lower part right end groove 15 of Card trough, snap-gauge protrusion 13 enters right end groove 15, gold
Belong to snap-gauge 3 to be lockable, can press reset switch 2 at this time bounces metal snap-gauge 3, due to the Card trough lower part of reset switch 2
There is no right end groove 15, so reset switch 2 will not be lockked by Metal pinch plate 17, since the protrusion on reset switch 2 squeezes card
Inclined-plane on board slot, Metal pinch plate 17 move to right, when Metal pinch plate 17, which moves on to right end groove 15, leaves snap-gauge protrusion 13 completely, gold
Belong to snap-gauge to bounce under the action of snap-gauge spring 9, plays the function of reset.In the case where power-off, electromagnet 4 is lost to armature
5 attraction, guide metal 16 moves right under the elastic force effect of guide plate spring 8, until guide plate spring 8 is in free shape
State, the left buckle spring 6 of 17 left end of Metal pinch plate and the right buckle spring 7 of right end become free state, Metal pinch plate at this time
It moves to right to right stop, the snap-gauge protrusion 13 on metal snap-gauge 3 is stuck in the left end protrusion 10 on Card trough at this time, at this time metal snap-gauge
3 be that can not be pressed, and metal snap-gauge 3 is also in the state of bouncing when being powered, and is also just off-state, not will lead to power-off
After forget to turn off the switch, after being powered electric appliance also in connected state, if electrical appliance be high-power electric appliance such as electromagnetic oven,
Hair dryer etc. can also have some potential safety problems, and waste resource.
Wherein, guide rail 12 is provided in the shell 1, the guide metal 16 is mounted on guide rail 12.
Preferably, the resistance that guide metal 16 is received when moving left and right is smaller, is moved easily, and can prevent guide metal
16 downward shift when moving left and right.
Wherein, the left end of the Metal pinch plate 17 is provided with left buckle spring 6, and the other end of the left buckle spring 6 connects
Guide metal 16 is connect, the right end of Metal pinch plate 17 is provided with right buckle spring 7, and the other end of the right buckle spring 7 connects gold
Belong to guide plate 16.
Preferably, it is connect due to being all provided with spring in the left end of Metal pinch plate 17 and right end with guide metal 16, metal
The power that buckle 17 is received when acting is bigger, improves sensitivity and accuracy.
Wherein, it is provided with temperature relay 11 on the shell 1, the temperature relay 11 is connected fixation with electromagnet 4
?
Preferably, the electromagnet 4 on shell 1 has been connected temperature relay 11, when overload electricity occurs in the winding on electromagnet 4
Temperature increases when stream, and 11 disconnecting circuit of temperature relay plays the role of protection at this time, enables the device to safer fortune
Row.
Wherein, the guide plate spring 8, left buckle spring 6, right buckle spring 7, snap-gauge spring 9 material be 55Si2Mn
Spring steel.
Preferably, guide plate spring 8, left buckle spring 6, right buckle spring 7, snap-gauge spring 9 material be 55Si2Mn spring
Steel selects this material that spring is made to have preferably elasticity, and there are also anti-relaxation stabilities, improve the time limit used, run device
Middle data are more accurate.
Wherein, the guide metal 16, Metal pinch plate 17, metal snap-gauge 3 are galvanized sheet.
Preferably, guide metal 16, Metal pinch plate 17, metal snap-gauge 3 be galvanized sheet, it is zinc-plated be it is a kind of through frequently with warp
Ji and effective anti-corrosion method, the half or so of whole world zinc yield are used to such technique, improve the use of device in this way
The time limit.
Wherein, the material of the shell 1 is ABS plastic.
Preferably, the material of shell 1 is ABS plastic, and the comprehensive performance of ABS plastic is fine, and plasticity is very strong and washes away
Intensity is usually quite height, stable chemical performance, so used under each environment, as long as meeting its requirement, then
It will not change easily, keep device work more stable, improve service life.
The specific embodiment of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to the application protection scope therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, under the premise of not departing from technical scheme design, various modifications and improvements can be made, these belong to this
The protection scope of application.
Claims (7)
1. a kind of key switch with multifunctional protection device, it is characterised in that: including shell (1), the shell (1) is internal
Side be provided with electromagnet (4), one end of electromagnet (4) is provided with guide plate spring (8), guide plate spring (8) other end
It is connected with guide metal (16), one end of guide metal (16) connection guide plate spring (8) is provided with armature (5), described outer
It is provided with Metal pinch plate (17) in shell (1), the left end of Metal pinch plate (17) or right end are connected by spring and guide metal (16)
It connects, the Metal pinch plate (17) is provided with Card trough, and the left side in the Card trough is provided with left end protrusion (10), the left end
Raised (10) top is the face vertical with the inner wall of Card trough, and left end protrusion (10) lower part is inclined-plane, the right side in the Card trough
Side is provided with right end protrusion (14), and the right end convex upper portion is inclined-plane, and the lower part of right end protrusion (14) is right end groove (15),
Bottom in the shell (1) is provided with snap-gauge spring (9), and the upper end of snap-gauge spring (9) is connected with metal snap-gauge (3), described
It is raised (13) that snap-gauge is provided on metal snap-gauge (3), the snap-gauge raised (13) is arranged in Card trough, and snap-gauge is raised (13)
With the contact of incline plane on raised (14) top of right end.
2. a kind of key switch with multifunctional protection device as described in claim 1, it is characterised in that: the shell (1)
It is inside provided with guide rail (12), the guide metal (16) is mounted on guide rail (12).
3. a kind of key switch with multifunctional protection device as described in claim 1, it is characterised in that: the Metal pinch plate
(17) left end is provided with left buckle spring (6), and the other end of the left buckle spring (6) connects guide metal (16), metal
The right end of buckle (17) is provided with right buckle spring (7), and the other end of the right buckle spring (7) connects guide metal (16).
4. a kind of key switch with multifunctional protection device as described in claim 1, it is characterised in that: further include temperature after
Electric appliance (11), the temperature relay (11) and electromagnet (4) are connected in series.
5. a kind of key switch with multifunctional protection device as described in claim 1, it is characterised in that: the guide plate spring
(8), left buckle spring (6), right buckle spring (7), snap-gauge spring (9) material be 55Si2Mn spring steel.
6. a kind of key switch with multifunctional protection device as described in claim 1, it is characterised in that: the guide metal
(16), Metal pinch plate (17), metal snap-gauge (3) are galvanized sheet.
7. a kind of key switch with multifunctional protection device as described in claim 1, it is characterised in that: the shell (1)
Material be ABS plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188736.9A CN109786144A (en) | 2019-03-13 | 2019-03-13 | A kind of key switch with multifunctional protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188736.9A CN109786144A (en) | 2019-03-13 | 2019-03-13 | A kind of key switch with multifunctional protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109786144A true CN109786144A (en) | 2019-05-21 |
Family
ID=66488653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910188736.9A Pending CN109786144A (en) | 2019-03-13 | 2019-03-13 | A kind of key switch with multifunctional protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109786144A (en) |
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| FR2642803A1 (en) * | 1989-02-08 | 1990-08-10 | Warner France | ELECTROMAGNETIC CLUTCH |
| JPH08314440A (en) * | 1995-05-22 | 1996-11-29 | Yamaha Corp | Keyboard device |
| CN2508375Y (en) * | 2001-09-12 | 2002-08-28 | 孙棠枝 | Key switch |
| CN2750519Y (en) * | 2004-07-28 | 2006-01-04 | 岳宝财 | A servo device for overvoltage protection power supply socket |
| CN201112310Y (en) * | 2007-09-27 | 2008-09-10 | 王顺波 | Supercharge loading, short circuit, and low-voltage protection switch |
| CN202302116U (en) * | 2011-09-28 | 2012-07-04 | 吕飞杰 | Key switch valve of combustion gas pipeline |
| CN202487465U (en) * | 2012-02-17 | 2012-10-10 | 薛仕郎 | Piano-key switch |
| CN105185629A (en) * | 2015-09-19 | 2015-12-23 | 中山市名迪电器有限公司 | Key switch |
| CN205723391U (en) * | 2016-06-06 | 2016-11-23 | 广州市博达电子科技有限公司 | A kind of earth leakage protection plug release |
| CN209357626U (en) * | 2019-03-13 | 2019-09-06 | 李乐修 | A kind of key switch with multifunctional protection device |
-
2019
- 2019-03-13 CN CN201910188736.9A patent/CN109786144A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1040745A (en) * | 1962-06-04 | 1966-09-01 | Lansing Bagnall Ltd | Improvements in or relating to electric motor controllers in electrically powered vehicles |
| FR2642803A1 (en) * | 1989-02-08 | 1990-08-10 | Warner France | ELECTROMAGNETIC CLUTCH |
| JPH08314440A (en) * | 1995-05-22 | 1996-11-29 | Yamaha Corp | Keyboard device |
| CN2508375Y (en) * | 2001-09-12 | 2002-08-28 | 孙棠枝 | Key switch |
| CN2750519Y (en) * | 2004-07-28 | 2006-01-04 | 岳宝财 | A servo device for overvoltage protection power supply socket |
| CN201112310Y (en) * | 2007-09-27 | 2008-09-10 | 王顺波 | Supercharge loading, short circuit, and low-voltage protection switch |
| CN202302116U (en) * | 2011-09-28 | 2012-07-04 | 吕飞杰 | Key switch valve of combustion gas pipeline |
| CN202487465U (en) * | 2012-02-17 | 2012-10-10 | 薛仕郎 | Piano-key switch |
| CN105185629A (en) * | 2015-09-19 | 2015-12-23 | 中山市名迪电器有限公司 | Key switch |
| CN205723391U (en) * | 2016-06-06 | 2016-11-23 | 广州市博达电子科技有限公司 | A kind of earth leakage protection plug release |
| CN209357626U (en) * | 2019-03-13 | 2019-09-06 | 李乐修 | A kind of key switch with multifunctional protection device |
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