CN102208294B - Microswitch and manual alarm device - Google Patents
Microswitch and manual alarm device Download PDFInfo
- Publication number
- CN102208294B CN102208294B CN201010137698.3A CN201010137698A CN102208294B CN 102208294 B CN102208294 B CN 102208294B CN 201010137698 A CN201010137698 A CN 201010137698A CN 102208294 B CN102208294 B CN 102208294B
- Authority
- CN
- China
- Prior art keywords
- contact
- sensitive switch
- operating parts
- switch
- contact portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/016—Personal emergency signalling and security systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
- H01H2003/0233—Emergency operating parts, e.g. for stop-switch in dangerous conditions for alarm triggering, e.g. fire alarm, emergency off switches operated by breaking a glass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/064—Limitation of actuating pressure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2225/00—Switch site location
- H01H2225/028—Switch site location perpendicular to base of keyboard
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/064—Eliminating tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2235/00—Springs
- H01H2235/028—Blade spring
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
Abstract
The invention provides a microswitch which comprises an operating element, a circuit board assembly and a contact element, wherein the operating element can be operated so as to realize the connection or disconnection of the microswitch, and a switch unit is arranged on the circuit board assembly. The contact element comprises a fixing part connected onto the operating element and a 'U'-shaped contact part. One side of the 'U'-shaped contact part of the operating element can be in contact with or separated from the switch unit so as to realize the connection or disconnection of the microswitch. In the microswitch, as the 'U'-shaped part of the contact element has the elasticity, the 'U'-shaped part can deform in the process of the contact with the switch unit of the circuit board assembly; and therefore, the microswitch has bigger operational tolerance, is safer to use and is convenient to maintain. The invention also provides a manual alarm device which is provided with the microswitch and is used for indicating alarm when the operating element is pressed.
Description
Technical field
The present invention relates to a kind of sensitive switch, relate in particular to a kind of sensitive switch with larger operational tolerance, the invention still further relates to a kind of manual alarm device with this sensitive switch, for indication warning in the time pressing an operating parts.
Background technology
Sensitive switch is a kind of high-speed switch of exerting pressure and actuating, be again sensitive switch, it is by acting on outer mechanical force in the power on action reed by actuated element, and by energy accumulation after critical point, produce instantaneous operation, make to move moving contact and fixed contact quick-make or the disconnection of reed end, and realize the opening and closing of switch.
Sensitive switch, because its high sensitivity is just being widely used in various technical fields at present, has all used in a large number sensitive switch in television set, computer and even space shuttle.At more existing devices, for example manual alarm device (MCP), in also used sensitive switch, such sensitive switch comprises operating parts and circuit board assemblies, on circuit board assemblies, be also provided with switch element, due to limited space, often by making operating parts be in direct contact with the switching that realizes switch on switch element.But such contact can make the tolerance of switch element operation less, thereby produces some problems.On the one hand, can cause the required precision of part higher; On the other hand, if operator is in use firmly excessive, tend to cause switch element and/or circuit board assemblies to damage.
Summary of the invention
An object of the present invention is to provide a kind of have larger operational tolerance and sensitive switch that can safety operation.Another object of the present invention is to provide a kind of manual alarm device of improvement.
The invention provides a kind of sensitive switch, comprise that one can be operated to have a switch element circuit board assemblies and a contact for realizing operating parts that described sensitive switch is switched on or switched off, one on it.Contact comprises a standing part being connected on operating parts; With a contact portion that is " U " shape, a side of contact portion " U " can or separate with described switch element contact, thereby realizes being switched on or switched off of described sensitive switch.
In another embodiment of the present invention, contact is removably connected with operating parts by standing part.
In another kind of embodiment of the present invention, contact is made up of elastic metallic material.
Because the contact in sensitive switch has the contact portion of " U " shape, excessive when acting on active force on operating parts, cause operating parts stroke long, while exceeding the limit of contact stroke, the sidepiece of " U " shape can be out of shape because of extruding in the contact process of switch element, realizes force compensating.The contact portion of " U " shape, for sensitive switch provides larger operational tolerance, prevents that exertin from causing damage to switch element and/or circuit board assemblies, makes sensitive switch of the present invention safer in the use.In addition, such design has also reduced the required precision to part to a certain extent.
In sensitive switch of the present invention, the standing part of contact is removably connected with operating parts in modes such as interlocks, in the time that contact breaks down, only needs replacing to pull down contact from operating parts and changes, without replacing whole sensitive switch, maintenance and cost of transportation etc. are reduced.
In addition, contact is made up of elastic metallic material, has avoided the easy temperature influence of the nonmetallic materials such as rubber and has damaged the problem of the parts such as switch element, has further improved the processing safety of sensitive switch of the present invention.
Accompanying drawing explanation
The following drawings only schematically illustrates and explains the present invention, not delimit the scope of the invention, wherein:
Fig. 1 is the trigger mechanism sectional perspective decomposing schematic representation of a kind of manual alarm device that comprises sensitive switch of the present invention;
Fig. 2 is the generalized section of sensitive switch shown in Fig. 1 in the time of on-state;
Fig. 3 is that sensitive switch shown in Fig. 1 is in disconnecting the generalized section of initial condition; With
Fig. 4 is that sensitive switch shown in Fig. 1 is in disconnecting the generalized section of completion status.Piece mark explanation:
20 circuit board assemblies 24 switch elements
40 operating parts 46 contact 462 standing part 464 contact portions
Embodiment
For technical characterictic, object and the effect of invention are had more clearly and are understood, now contrast accompanying drawing explanation the specific embodiment of the present invention, in each figure, identical label represents identical part.
Fig. 1 is the trigger mechanism sectional perspective decomposing schematic representation of a kind of manual alarm device that comprises sensitive switch of the present invention.The shell of not shown manual alarm device, and in shell for installing or guider or the guide rail of mobile trigger mechanism.Preferably, the shell of manual alarm device comprises a base and a upper cover.Sensitive switch comprises circuit board assemblies 20, operating parts 40 and contact 46.Circuit board assemblies 20 comprises switch element 24, operating parts 40 is provided with a pair of aixs cylinder 44 (only having schematically shown one of them aixs cylinder in Fig. 1), in the time that operating parts 40 is subject to pressing of direction as shown, operating parts can rotate around aixs cylinder 44, and move along the disconnection direction shown in Fig. 1, realize the disconnection of sensitive switch.
Contact 46 comprises a standing part 462 and a contact portion 464.Standing part 462 is arranged on operating parts 40, in the time that operating parts 40 moves, contact 46 can move thereupon, drives the contact portion 464 of contact 46 be separated or contact with the switch element 24 on circuit board assemblies 20, thereby realizes disconnection or the connection of sensitive switch.
The contact portion of contact 46 is bent into " U " shape.It will be understood by those skilled in the art that said " U " shape is not the shape in strict geometry meaning here, it can also be included in similar to " U " shape in engineering science or have other shape of similar functions, for example " V " shape, " recessed " shape etc.Between contact portion 464 both sides of contact 46 " U " shape, there is gap, with switch element 24 contact processes in, the contact portion 464 of contact can deform, and reduces the distance between both sides, this has just strengthened the tolerance of operating parts 40 in operating process.That is to say, even firmly excessive when operator presses operating parts 40, the contact portion 464 of " U " shape can produce certain cushioning effect, avoids directly damaging switch element 24 and/or circuit board assemblies (will in Fig. 3, illustrate).
Although two switch elements 24 have been shown in Fig. 1, but it will be appreciated by those skilled in the art that, on circuit board assemblies 20, the number of switch element 24 can be also one or more than one situation, and the number of the switch element 24 that the number of contact 46 can basis and the concrete needs while using arrange.In Fig. 1, only schematically show a contact 46.
In another preferred embodiments of sensitive switch of the present invention, the standing part 462 of contact 46 with operating parts 40 for being removably fixedly connected with, specifically, this being fixedly connected with can be realized by the interlock mode of buckle, groove or other any dismountable connected mode well known by persons skilled in the art.
In another preferred embodiments of sensitive switch of the present invention, the contact portion 464 of contact is made up of elastic metallic material, such as copper etc., avoid damaging because of engineering plastics temperature influence generation creep or aging etc. the problem of the parts such as switch element, further improved the processing safety of sensitive switch of the present invention.
Now, in conjunction with Fig. 2 to Fig. 4, sensitive switch is described from being switched to the course of work of off-state.
Schematic diagram when Fig. 2 is sensitive switch on-state.As shown in Figure 2, at sensitive switch, during in on-state, operating parts 40 two ends are subject to the effect of two power F1 and F2, remain on a stable position.As F1 power can be by realizations such as block, grab (not shown)s, and F2 power can be realized by the (not shown) such as spring, shell fragment, those skilled in the art can design according to the different service condition of sensitive switch, do not repeat them here.Now the contact portion 464 of contact 46 and the switch element 24 of circuit board assemblies 20 contact, and make sensitive switch in on-state.In the time that needs are opened sensitive switch, promote operating parts 40 along the direction of pressing shown in arrow in Fig. 2.
As shown in Figure 3, after operating parts 40 is pressed, operating parts 40 just rotates around aixs cylinder 44, if now, it is excessive that operator is applied to pressing force on operating parts 40, may cause the movement travel of operating parts 40 to be transfinited, now the U-shaped part of the contact portion 464 of contact 46 deforms, distance between U-shaped both sides is less than the original position shown in dotted line, this distortion of U-shaped part has realized crosses force compensating, and then switch element 24 and/or circuit board assemblies 20 are protected, make them avoid excessive being damaged of shift motion because of operating parts 40, even under the close contact of contact portion 464, switch element 24 still can normally be worked.
Turn over after certain angle at operating parts 40, act on the F2 power disappearance (leaving block etc. as operating parts) on operating parts 40, operating parts 40 can be under the effect of F1 power, move along the disjunction direction shown in Fig. 3, position shown in final arrival Fig. 4, contact portion 464 separates with switch element 24, and sensitive switch can be realized disconnection after operator presses operating parts.
As can be seen here, sensitive switch of the present invention has larger operational tolerance, improve the fail safe of operating process, even in the excessive situation of external force, still can pass through the deformation-compensated excessive external force of contact " U " shape contact portion, make switch element and/or circuit board assemblies avoid damage, reduced maintenance cost.In addition, the contact made from metal material is difficult for temperature influence and aging, has improved fail safe.Contact is connected with the detachable of operating parts, and the replaceability while also having strengthened accessory loss has further reduced maintenance cost.
Listed a series of detailed description is above only illustrating for feasibility embodiment of the present invention; they are not in order to limit the scope of the invention, all do not depart from the equivalent embodiment that skill spirit of the present invention does or change and all should be included in protection scope of the present invention within.
Claims (5)
1. a sensitive switch, comprising:
One can be operated the operating parts being switched on or switched off for realizing described sensitive switch;
A circuit board assemblies, has a switch element on it; With
A contact, is characterized in that described contact comprises:
A standing part being connected on described operating parts;
One is the contact portion of " U " shape, and a side of this contact portion " U " can or separate with described switch element contact, thereby realizes being switched on or switched off of described sensitive switch;
Wherein, when a side of described contact portion " U " contacts with described switch element described in sensitive switch connect, after described operating parts is operated, a side of described contact portion " U " separates with described switch element so that described sensitive switch disconnect.
2. sensitive switch as claimed in claim 1, wherein, described contact is removably connected with described operating parts by described standing part.
3. sensitive switch as claimed in claim 1 or 2, wherein, described contact is metal contact element.
4. sensitive switch as claimed in claim 2, wherein,
In the time that described sensitive switch is connected, described operating parts is subject to power respect to one another (F1, F2) effect and keeps described contact portion to contact with described switch element in the compressible direction of described " U " shape contact portion;
After described operating parts is operated, described power respect to one another (F1, F2) disequilibrium, described contact portion is moved to the disjunction direction that deviates from described switch element, thereby described contact portion separates with described switch element.
5. a manual alarm device, is characterized in that, comprising:
A shell, and
A trigger mechanism for manual alarm device described in manual triggers in the time reporting to the police;
Described trigger mechanism is movably disposed within described shell, and comprises the sensitive switch described in aforementioned any one claim, for indication warning in the time pressing an operating parts of described sensitive switch.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010137698.3A CN102208294B (en) | 2010-03-31 | 2010-03-31 | Microswitch and manual alarm device |
| PCT/EP2011/054900 WO2011121016A1 (en) | 2010-03-31 | 2011-03-30 | Micro-switch and manual alarm device |
| HK11113081.0A HK1158812A1 (en) | 2010-03-31 | 2011-12-02 | Micro-switch and manual alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010137698.3A CN102208294B (en) | 2010-03-31 | 2010-03-31 | Microswitch and manual alarm device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102208294A CN102208294A (en) | 2011-10-05 |
| CN102208294B true CN102208294B (en) | 2014-06-25 |
Family
ID=44146779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010137698.3A Active CN102208294B (en) | 2010-03-31 | 2010-03-31 | Microswitch and manual alarm device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102208294B (en) |
| HK (1) | HK1158812A1 (en) |
| WO (1) | WO2011121016A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU177083U1 (en) * | 2016-11-10 | 2018-02-07 | Общество с ограниченной ответственностью "Группа компаний "РУБЕЖ" | Manual fire detector |
| CN109036892B (en) * | 2018-07-20 | 2024-07-30 | 中国航发哈尔滨东安发动机有限公司 | Journey protection mechanism of micro-gap switch |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1729314A2 (en) * | 2005-05-31 | 2006-12-06 | Siemens Aktiengesellschaft | Push button switch |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5932850B2 (en) * | 1979-12-10 | 1984-08-11 | 富士通株式会社 | Manufacturing method of push button switch |
| DE3441366A1 (en) * | 1984-11-13 | 1986-05-22 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Portable emergency transmitter |
| JPH01117212A (en) * | 1987-10-29 | 1989-05-10 | Fujitsu Ltd | Push-button switch |
| JPH02145731U (en) * | 1989-05-11 | 1990-12-11 | ||
| JPH0850832A (en) * | 1994-08-08 | 1996-02-20 | Fujitsu Ten Ltd | Pushbutton switch |
| JPH10294030A (en) * | 1997-04-19 | 1998-11-04 | Mic Electron Co | Switch |
| EP1014406B1 (en) * | 1997-04-28 | 2004-11-10 | Idec Izumi Corporation | Push-button switch, and operating device and teaching pendant comprising the same |
| FR2835756B1 (en) * | 2002-02-12 | 2004-04-30 | Axendis | MANUAL TRIGGER, ESPECIALLY FOR FIRE ALARM |
-
2010
- 2010-03-31 CN CN201010137698.3A patent/CN102208294B/en active Active
-
2011
- 2011-03-30 WO PCT/EP2011/054900 patent/WO2011121016A1/en active Application Filing
- 2011-12-02 HK HK11113081.0A patent/HK1158812A1/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1729314A2 (en) * | 2005-05-31 | 2006-12-06 | Siemens Aktiengesellschaft | Push button switch |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1158812A1 (en) | 2012-07-20 |
| WO2011121016A1 (en) | 2011-10-06 |
| CN102208294A (en) | 2011-10-05 |
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Owner name: SIEMENS AG Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT Effective date: 20150604 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20150604 Address after: Zurich Patentee after: Siemens Schweiz AG Address before: Munich, Germany Patentee before: Siemens AG |