CN104821244A - Protection structure of coaxial electromechanical switch contact spring strip - Google Patents
Protection structure of coaxial electromechanical switch contact spring strip Download PDFInfo
- Publication number
- CN104821244A CN104821244A CN201510198281.0A CN201510198281A CN104821244A CN 104821244 A CN104821244 A CN 104821244A CN 201510198281 A CN201510198281 A CN 201510198281A CN 104821244 A CN104821244 A CN 104821244A
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- China
- Prior art keywords
- spring
- contact spring
- push rod
- overcoat
- cavity
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
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- Push-Button Switches (AREA)
Abstract
The invention provides a protection structure of a coaxial electromechanical switch contact spring strip. The protection structure comprises an outer sleeve, a mounting sleeve, a pushing rod and a spring; the top of the outer sleeve is connected with the bottom of the mounting sleeve through a screw thread structure, the spring is installed in a cavity of the outer sleeve, one end of the spring abuts against the bottom of the outer sleeve, the other end of the spring abuts against a base of the pushing rod, and a rod body of the pushing rod extends out of the cavity, which is composed of the outer sleeve and the mounting sleeve, through a penetrating hole of the mounting sleeve; the spring and the pushing rod are mounted in the cavity composed of the outer sleeve and the mounting sleeve, the pushing rod moves in one direction in the cavity through compression of the spring, and the whole protection structure is connected with a movement mechanism; and the elastic coefficient of the contact spring strip is greater than the elastic coefficient of the spring. The deformation amount of the contact spring strip is less than the deformation amount in a traditional manner, and fatigue damage of the contact spring strip is reduced; and an acting force between the contact spring strip and a contact point is provided by a compressed force of the spring, and adjustment is convenient to perform.
Description
Technical field
The present invention relates to electric mechanical switch field, particularly a kind of operator guards of coaxial electric mechanical switch contact spring.
Background technology
Coaxial electric mechanical switch is generally divided into relay and microwave two parts.Microwave portions is the funtion part of coaxial switch, and relay part is the part ensureing that coaxial electric mechanical switch normally works.Coaxial electric mechanical switch controls switching on and off of microwave portions contact spring by relay part and with the contact spring transfer bar mechanism of relay associated, therefore relay part is the important component part that coaxial electric mechanical switch normally works, and the transfer bar mechanism of the microwave portions contact spring mechanism that to be itself and relay part in close relations, this part by affecting contact spring, and then can have an impact to the normal work of microwave portions to a certain extent.
In order to ensure the good contact of contact spring, the part that pusher structure is connected with relay portion componental movement mechanism generally adopts Metallic rod or the good nonmetal parts of rigidity.The transfer bar mechanism of current contact spring is roughly divided into two kinds: as shown in Figure 1a, and one only has a push rod composition, and the contact spring of microwave portions is directly connected by push rod with relay Drive Structure, realizes motion; As shown in Figure 1 b, another kind is that transfer bar mechanism is made up of push rod and push rod, and contact spring is connected with push rod, and forms a unit with elastic parts, realizes it move by the push rod be connected with relay Drive Structure.
But no matter which kind of structure, transfer bar mechanism is all the overall rigid material structure adopted, and the deformation coefficient of part is all greater than the deformation coefficient of contact spring.When motion is by the motion of transfer bar mechanism actuating spring, good owing to will ensure the contact of contact spring, the move distance of motion is greater than contact spring and moves to the distance with contact, provides larger active force with this.But offset the unwanted motion of motion, the deformation of the part that will pass through is offset, because the deformation coefficient of elastic spring is minimum, will there is deformation in contact spring.Work long hours, very large on the fatigue damage impact of contact spring.For this reason will the move distance of strict controlled motion mechanism, move distance becomes large, as easy as rolling off a logly causes irreversible damage to contact spring, and this brings difficulty to design and processing, and require also to improve to the materials and process of contact spring, can corresponding increase production cost.
Summary of the invention
For the shortcoming that prior art exists; the present invention proposes a kind of operator guards of coaxial electric mechanical switch contact spring; this is the stressed device of a kind of snubber contact reed, to be stressedly transferred to unnecessary on the spring less than contact spring deformation coefficient by this structure.
Technical scheme of the present invention is achieved in that
A kind of operator guards of coaxial electric mechanical switch contact spring, comprise: overcoat, installation sleeve, push rod and spring, the top of overcoat is connected by helicitic texture with the bottom of installation sleeve, spring fitting in mantle cavity body, one end of spring and the bottom of overcoat inconsistent, the other end of spring and the base of push rod inconsistent, the body of rod of push rod stretches out the cavity be made up of overcoat and installation sleeve by the through hole of installation sleeve;
Spring and push rod are arranged in a cavity being made up of overcoat and installation sleeve, and push rod is moved along a direction by Compress Spring in cavity, and whole operator guards is connected with motion;
The coefficient of elasticity of contact spring is greater than the coefficient of elasticity of spring.
Alternatively, overcoat is directly connected with motion as a part for motion.
Alternatively, overcoat is connected with motion by screw thread as transition.
Alternatively, increase pad in the position of spring or push rod, during regulating spring compression, be supplied to the active force of contact spring.
Alternatively, overcoat and installation sleeve are as a part for motion, and spring, push rod are fixed in a cavity by screw by overcoat.
The invention has the beneficial effects as follows:
(1) stressed be transferred on the spring less than contact spring deformation coefficient by this structure by unnecessary, reduce the deformation of contact spring, the good contact of the card contact spring of trying hard to keep simultaneously produced by spring deformation;
(2) can the corresponding move distance suitably relaxing motion, be conducive to processing and design, reduce production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 a is the structural representation of the transfer bar mechanism of existing a kind of contact spring;
Fig. 1 b is the structural representation of the transfer bar mechanism of existing another kind of contact spring;
Fig. 2 is the schematic diagram of the operator guards of a kind of coaxial electric mechanical switch contact spring of the present invention;
Fig. 3 is push rod (or push rod) structure chart;
Fig. 4 is mantle cavity body separation structure figure;
Fig. 5 is installation sleeve structure chart;
Fig. 6 is the schematic diagram of the preferred embodiment of the operator guards of a kind of coaxial electric mechanical switch contact spring of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The transfer bar mechanism of existing contact spring, push rod is rigid structure and is directly connected with motion, actuating force can directly act on contact spring by pusher structure, the distortion that these power are all produced by contact spring is substantially offset, comparatively large to the fatigue damage of contact spring, affect the function of switch.Good in order to ensure contact spring contact, the contact distance of contact spring is generally less than the move distance of post rod mechanism, the result of such generation is exactly that the active force of push rod or push rod acts on contact spring completely, contact spring is easily caused to be out of shape, reed distortion can have influence on the normal work of microwave portions, can reduce the reliability of switch.
The present invention proposes a kind of operator guards of coaxial electric mechanical switch contact spring; as shown in Figure 2; comprise overcoat 1; installation sleeve 4; push rod 3 (or push rod) and spring 2; the top of overcoat 1 is connected by helicitic texture with the bottom of installation sleeve 4; spring 2 is arranged in overcoat 1 cavity; one end of spring 2 and the bottom of overcoat 1 inconsistent; the other end of spring 2 and the base of push rod 3 inconsistent, the body of rod of push rod 3 stretches out the cavity be made up of overcoat 1 and installation sleeve 4 by the through hole of installation sleeve.
Push rod 3 (or push rod), spring 2 are combined by installation sleeve 4 and overcoat 1, and push rod 3 (or push rod) is not fixed, and whole operator guards is connected with motion.When motion motion, after contact spring and contact, due to good in order to contact, motion will continue generation effect, has the trend continuing a bit of distance of motion, to reed generation greater role power.Now contact spring is stressed, produces slight deformation, and reaction push rod (or push rod), such push rod (or push rod) Compress Spring, is converted into the common deformation of contact spring and spring by this segment rigidity distance.But because the coefficient of elasticity of contact spring is much larger than the coefficient of elasticity of spring, so strain major part is converted into the deformation of spring, the distortion of contact spring is very little, and the active force that spring produces ensures again the good contact of contact spring.Be described in detail below in conjunction with the operator guards of accompanying drawing to the coaxial electric mechanical switch contact spring of the present invention.
As Fig. 2,3, shown in 4 and 5, the operator guards of coaxial electric mechanical switch contact spring of the present invention comprises overcoat 1, spring 2, push rod (or push rod) 3, installation sleeve 4.During assembling, spring 2, push rod (or push rod) 3 are arranged in a cavity being made up of overcoat 1 and installation sleeve 4, and push rod (or push rod) 3 can only be moved along a direction by Compress Spring in cavity.
Wherein, overcoat 1 directly can be connected with motion as a part for motion; Or be connected with motion by screw thread as transition.
Spring, push rod (or push rod) are sealed in the cavity of overcoat and installation sleeve, can not at will move, and can only move upward at spring-compressed and profound side.
In use, carry out to be supplied to when regulating spring compresses the active force of contact spring as required by increasing pad in the position of spring, push rod (or push rod).
Spring, push rod (or push rod) can adopt metal material or nonmetallic materials.
Preferably, as shown in Figure 6, in order to reduce the volume of coaxial switch, overcoat 1 and installation sleeve 4 can as parts for motion, installation sleeve 4 combines with motion movable part, and overcoat 1 changes screw into and spring 2, push rod (or push rod) 3 is fixed in a cavity.
During work, motion motion also drives contact spring motion and contact by the push rod (or push rod) 3 of transfer bar mechanism, when the move distance of motion is greater than the functional contact distance of contact spring, spring and contact spring are by the raw deformation of Hair Fixer, because the coefficient of elasticity of contact spring is much larger than the coefficient of elasticity of spring, the main Compress Spring of push rod (or push rod) produces deformation, to offset too much motion, contact spring also there will be deformation, but its limit can not be exceeded, such minimizing motion directly acts on the mechanical damage of contact spring generation by push rod (or push rod).The force reaction of spring deformation generation simultaneously, in contact spring, makes contact spring contact good.
The operator guards of the coaxial electric mechanical switch contact spring that the present invention proposes is a kind of buffer structure, the unnecessary move distance of relay movement componental movement changes the compression distance of spring into, the deflection of contact spring is lower than traditional mode, reduces the fatigue damage of contact spring; The active force of contact spring and contact point is provided by the power of the compression of spring, conveniently regulates; This structure can use as excessive mechanism, and also this mechanism can be dissolved in switching mechanism and use, flexibility is high.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the operator guards of a coaxial electric mechanical switch contact spring, it is characterized in that, comprise: overcoat, installation sleeve, push rod and spring, the top of overcoat is connected by helicitic texture with the bottom of installation sleeve, spring fitting is in mantle cavity body, one end of spring and the bottom of overcoat inconsistent, the other end of spring and the base of push rod inconsistent, the body of rod of push rod stretches out the cavity be made up of overcoat and installation sleeve by the through hole of installation sleeve;
Spring and push rod are arranged in a cavity being made up of overcoat and installation sleeve, and push rod is moved along a direction by Compress Spring in cavity, and whole operator guards is connected with motion;
The coefficient of elasticity of contact spring is greater than the coefficient of elasticity of spring.
2. the operator guards of coaxial electric mechanical switch contact spring as claimed in claim 1, it is characterized in that, overcoat is directly connected with motion as a part for motion.
3. the operator guards of coaxial electric mechanical switch contact spring as claimed in claim 1, it is characterized in that, overcoat is connected with motion by screw thread as transition.
4. the operator guards of coaxial electric mechanical switch contact spring as claimed in claim 1, is characterized in that, increases pad in the position of spring or push rod, is supplied to the active force of contact spring during regulating spring compression.
5. the operator guards of electric mechanical switch contact spring as claimed in claim 1 coaxial, is characterized in that, overcoat and installation sleeve are as a part for motion, and spring, push rod are fixed in a cavity by screw by overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510198281.0A CN104821244B (en) | 2015-04-17 | 2015-04-17 | A kind of protection structure of coaxial electric mechanical switch contact spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510198281.0A CN104821244B (en) | 2015-04-17 | 2015-04-17 | A kind of protection structure of coaxial electric mechanical switch contact spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104821244A true CN104821244A (en) | 2015-08-05 |
| CN104821244B CN104821244B (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510198281.0A Expired - Fee Related CN104821244B (en) | 2015-04-17 | 2015-04-17 | A kind of protection structure of coaxial electric mechanical switch contact spring |
Country Status (1)
| Country | Link |
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| CN (1) | CN104821244B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115621979A (en) * | 2022-10-13 | 2023-01-17 | 管琳 | Short circuit self-disconnection safety electric meter and disconnection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116314A1 (en) * | 1991-05-15 | 1992-11-19 | Siemens Ag | Friction damper with conical plunger for power switch - has ring around symmetrically divided friction body forced outwards by pressure of tapered switch rod termination |
| CN202888011U (en) * | 2012-11-07 | 2013-04-17 | 嘉善求新精密机电制造有限公司 | Buffer mechanism for automobile electromagnetic start switch |
| CN203386621U (en) * | 2013-07-19 | 2014-01-08 | 江苏精科智能电气股份有限公司 | Buffering device for electric spring operation mechanism |
-
2015
- 2015-04-17 CN CN201510198281.0A patent/CN104821244B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116314A1 (en) * | 1991-05-15 | 1992-11-19 | Siemens Ag | Friction damper with conical plunger for power switch - has ring around symmetrically divided friction body forced outwards by pressure of tapered switch rod termination |
| CN202888011U (en) * | 2012-11-07 | 2013-04-17 | 嘉善求新精密机电制造有限公司 | Buffer mechanism for automobile electromagnetic start switch |
| CN203386621U (en) * | 2013-07-19 | 2014-01-08 | 江苏精科智能电气股份有限公司 | Buffering device for electric spring operation mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115621979A (en) * | 2022-10-13 | 2023-01-17 | 管琳 | Short circuit self-disconnection safety electric meter and disconnection method |
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| Publication number | Publication date |
|---|---|
| CN104821244B (en) | 2017-05-31 |
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Granted publication date: 20170531 |
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