CN203536269U - Circuit change over switch - Google Patents
Circuit change over switch Download PDFInfo
- Publication number
- CN203536269U CN203536269U CN201320725324.2U CN201320725324U CN203536269U CN 203536269 U CN203536269 U CN 203536269U CN 201320725324 U CN201320725324 U CN 201320725324U CN 203536269 U CN203536269 U CN 203536269U
- Authority
- CN
- China
- Prior art keywords
- contact
- switch
- spring
- cylinder
- hole
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model discloses a circuit change over switch, and belongs to the technical field of circuit switches. The circuit change over switch comprises a switch body, a spring seat, contact spring reeds, a spring, contact heads, and a pin, wherein a stepped hole is opened in a side wall of the switch body, grooves are opened at a circumference surface of the switch body, the contact heads are mounted in through holes of the grooves, the spring seat is arranged at a hollow part of the switch body, a plurality of grooves are disposed on an external circumferential surface of the spring seat, the contact spring reeds are arranged in the grooves, a through hole is opened at a center part of the spring seat, the spring is arranged in a bigger end of the through hole, and the pin is located in the spring seat. The pin is pushed by an external force so as to allow the spring seat to move in the stepped hole, and therefore the contact spring reeds can contact with different contact heads to form different conducting loops, thereby achieving an on-off conversion of the circuit change over switch. The circuit change over switch has characteristics of having more conversion channels, small size, simple structure, and high reliability.
Description
Technical field
The utility model relates to contactor technical field, is specifically related to a kind of many group stroke conversion switchs, is applicable to the break-make conversion of circuit and the reset condition judgement of circuit and detects.
Background technology
In dynamo-electric field, circuit changing switch has very important effect, this is that whether reliable arrives the accuracy of the break-make of circuit and the judgement of the reset condition of circuit and detection because of circuit changing switch work, is one of important basis for estimation of circuitry security.For this reason, having the circuit changing switch that ALT-CH alternate channel is many, volume is little, simple in structure, reliability is high, is very important research topic in current contactor technical field.
Existing circuit changing switch as shown in Figure 1.This circuit changing switch is rectangular structure, comprises switch body, spring base, spring, push rod spring, moving contact, clamp, contact body, fixed contact and push rod.The switch body left and right sides has breach, and contact body and fixed contact are placed in the breach of both sides, and push rod spring one side is moving contact fixedly, and push rod spring opposite side is fixed on push rod, and before and after switch body, both sides have groove, and clamp is placed in groove change over switch banding.In external force, drive in push rod situation, push rod can promote spring base motion, and push rod spring and moving contact are along with push rod moves, and moving contact opposite side moves along fixed contact, realizes contacting and break function conversion of moving contact and fixed contact.Although sort circuit change over switch can be realized the break-make conversion of switch, before and after switch body, both sides are all occupied by clamp, cause ALT-CH alternate channel few, do not play and well reduce volumetric, and the parts of this switch are more, reliability is not high, often occurs switch stuck phenomenon.Therefore, be necessary sort circuit change over switch to improve.
Utility model content
For the defect of prior art, the purpose of this utility model is to provide a kind of circuit changing switch, has the advantages that ALT-CH alternate channel is many, volume is little, simple in structure.
A circuit changing switch, comprises switch body, spring base, contact spring, spring, contact and pin;
Described switch body is by the switch cylinder of hollow and be positioned at the symmetrical journal stirrup of its outer wall and form; Switch cylinder bottom centre has aperture, switch cylinder inwall symmetry has two grooves, switch cylindrical body outer wall symmetry has two square grooves, two groove lines overlap with journal stirrup axis, two square groove lines are vertical with journal stirrup axis, switch cylinder inwall has little groove between groove and square groove, and switch cylindrical body outer wall has big groove between groove and square groove, longitudinally has a plurality of circular holes between little groove and big groove;
Described spring base comprises spring base cylinder, spring base cylinder is placed in the switch cylinder of switch body, spring base cylindrical body outer wall is symmetrily processed with two boss, two boss are placed in respectively in cylindrical two grooves of switch, spring base cylinder inside has the first hole, the second hole and the 3rd hole, the second bore dia is less than the first hole and the 3rd hole, spring base cylindrical body outer wall is processed with equally distributed four sheet metal grooves, four sheet metals are corresponding one by one with cylindrical four the little groove location of switch respectively with groove, form contact spring chamber;
Described contact spring is placed in contact spring chamber;
Described contact is connected and composed by contact cylinder and hemispherical head, hemispherical head is placed in the cylindrical little groove of switch, contact cylinder is placed in the cylindrical big groove of switch through the cylindrical circular hole of switch, and the wire of contact cylinder afterbody welding is connected with external circuit;
Described spring is placed in the first hole of spring base;
Described pin is placed in spring base cylinder;
Promote under external force pin, pin orders about spring base cylinder and vertically moves in switch cylinder, makes contact spring and the contact that is positioned at different circular holes place, forms different conducting loops, completes the break-make conversion of change over switch.
Further, the length of described contact spring is greater than the distance of adjacent two circular holes and is less than first to the 3rd distance between circular hole, and described contact spring stretches out spring base cylindrical body outer wall distance for 0.15mm～0.2mm.
Further, described contact spring is the strip metal sheet with angle of bend, and described angle of bend is 15 °～30 °.
Further, the drag of described spring is all contact springs and contact drag summation 1.5～3 times.
Further, also comprise clamp, be installed on switch cylinder upper end, for all parts are sealed as global facility.
Further, described contact spring and contact surface are through silver-plated processing, and the surface of described contact spring and contact is also coated with DJB-823 solid film protective agent.
Technique effect of the present utility model is embodied in:
Change over switch of the present utility model promotes pin under external force to be ordered about spring base and moves in switch body, make contact spring and different contact, form different conducting loops, the break-make conversion of completing circuit change over switch, the wire of the cylinder afterbody welding of contact is connected the control that realizes circuit with circuit.Circuit changing switch of the present utility model is concentric cylinder structure, and contact spring and contact distribute along even circumferential, is increasing on the basis of change over switch passage, has effectively utilized the space of change over switch.
Further, the angle of bend of the length of contact spring and overhang and contact spring is optimized to restriction, there is good distortion and restore funcitons, can realize reliably contact spring and contact, improved the contact reliability of change over switch.
Further, the drag that limits spring is all contact springs and contact drag summation 1.5～3 times, not only guarantees spring base motion reliably but also can reduce spring volume.
Further; by technique repeatedly, grope; contact spring and contact surface are carried out after silver-plated processing; press again GJB1385-92 < < DJB-823 solid film protective agent coated technique > >; contact spring and contact surface are all applied to DJB-823 solid film protective agent; result has not only effectively been eliminated the stuck phenomenon of circuit changing switch; improved significantly the functional reliability of circuit changing switch, and improved the useful life of circuit changing switch.
Accompanying drawing explanation
Fig. 1 is traditional circuit changing switch;
Fig. 2 is circuit changing switch structural representation of the present utility model;
Fig. 3 is the utility model switch body structural representation;
Fig. 4 is the utility model spring seat structure schematic diagram, and wherein, Fig. 4 a is the C-C cutaway view of Fig. 4 (b), and Fig. 4 (b) is the A-A cutaway view of Fig. 4 (a);
Fig. 5 is the utility model contact spring structural representation;
Fig. 6 is the utility model structure of contact terminal schematic diagram;
Fig. 7 is the utility model pin configuration schematic diagram;
Fig. 8 is the utility model clamp structural representation.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and preferred embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Be illustrated in figure 2 circuit changing switch structural representation of the present utility model, the utility model comprises switch body 1, spring base 2, contact spring 3, spring 4, clamp 5, contact 6 and pin 7.
Contact spring 3 as shown in Figure 5, for one end has the banded beryllium-bronze sheet of certain angle of bend, is placed in four groove 2-6 of spring base 2, has good distortion and restore funcitons, can realize reliably contact spring 3 and contact with contact 6;
Described spring 4 is the equal pitch spiral spring that two ends polish, and is placed in the first hole 2-3 of spring base 2;
The copper cash that contact 6 is as shown in Figure 6 T2 by the trade mark is made, cylinder 6-1 and hemispherical head 6-2 by one form, be placed in the little groove 1-6 and the circular hole 1-8 between big groove 1-7 of switch body 1, the hemispherical head 6-2 of contact 6 is placed in little groove 1-6, the cylinder 6-1 of contact 6 is placed in big groove 1-7, and cylinder 6-1 is placed in the afterbody welding lead of big groove 1-7 and with the poly-sulphur glue of HL epoxy, solder joint and wire root is fixed;
The length of described contact spring 3 is greater than the distance of adjacent two contacts 6 and is less than the distance of three contacts 6, it is 0.15mm～0.2mm that described contact spring 3 stretches out spring base 2 spring base cylinder (2-1) outer wall distances, with contact 6 Interference contacts, to improve the contact reliability of circuit changing switch.Described contact spring 3 is made by beryllium-bronze band, 15 °～30 ° of described contact spring 3 angle of bend.
Described circuit changing switch, is characterized in that: described spring base 2 and switch body 1 matched in clearance, in the switch body 1 of contact 6 is installed, spring base 2 can free landing under Action of Gravity Field.
Contact spring 3 in described spring 4 promotion spring bases 2 and spring base 2 is when the interior motion of switch body 1, and the drag of spring 4 is all contact springs 3 contact drag summation with contact 62 times, has guaranteed the flexible of circuit changing switch conversion.
EpAg8 surface treatment is all carried out on the surface of described contact spring 3 and contact 6, after surface treatment, the surface of described contact spring 3 and contact 6 is all applied to DJB-823 solid film protective agent by GJB1385-92 < < DJB-823 solid film protective agent coated technique > >, so the frictional resistance of contact spring and contact has been reduced to 30%, not only effectively eliminated the stuck phenomenon of circuit changing switch, improved significantly the functional reliability of circuit changing switch, and the useful life of having improved circuit changing switch.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (6)
1. a circuit changing switch, is characterized in that, comprises switch body (1), spring base (2), contact spring (3), spring (4), contact (6) and pin (7);
Described switch body (1) is by the switch cylinder (1-1) of hollow and be positioned at the symmetrical journal stirrup of its outer wall (1-2) and form, switch cylinder (1-1) bottom centre has aperture (1-3), switch cylinder (1-1) inwall symmetry has two grooves (1-4), switch cylinder (1-1) outer wall symmetry has two square grooves (1-5), two grooves (1-4) line overlaps with journal stirrup (1-2) axis, two square grooves (1-5) line is vertical with journal stirrup (1-2) axis, switch cylinder (1-1) inwall has little groove (1-6) between groove (1-4) and square groove (1-5), switch cylinder (1-1) outer wall has big groove (1-7) between groove (1-4) and square groove (1-5), between little groove (1-6) and big groove (1-7), longitudinally have a plurality of circular holes (1-8),
Described spring base (2) comprises spring base cylinder (2-1), spring base cylinder (2-1) is placed in the switch cylinder (1-1) of switch body (1), spring base cylinder (2-1) outer wall is symmetrily processed with two boss (2-2), two boss (2-2) are placed in respectively in two grooves (1-4) of switch cylinder (1-1), spring base cylinder (2-1) inside is processed with the first hole (2-3) from the bottom up successively, the second hole (2-4) and the 3rd hole (2-5), the second hole (2-4) diameter is less than the first hole (2-3) and the 3rd hole (2-5), spring base cylinder (2-1) outer wall is processed with equally distributed four grooves for sheet metal (2-6), four grooves for sheet metal (2-6) are corresponding one by one with four little grooves (1-6) position on switch cylinder (1-1) respectively, form four contact spring chambers,
Described contact spring (3) is placed in contact spring chamber;
Described contact (6) is connected and composed by contact cylinder (6-1) and hemispherical head (6-2), hemispherical head (6-2) is placed in the little groove (1-6) of switch cylinder (1-1), contact cylinder (6-1) is placed in the big groove (1-7) of switch cylinder (1-1) through the circular hole (1-8) of switch cylinder (1-1), and the wire of contact cylinder (6-1) afterbody welding is connected with external circuit;
Described spring (4) is placed in first hole (2-3) of spring base (2);
Described pin (7) is placed in spring base cylinder (2-1);
Promote under external force pin (7), pin (7) orders about spring base cylinder (2-1) and vertically moves in switch cylinder (1-1), make contact spring (3) and contact (6) contact that is positioned at different circular holes place, form different conducting loops, the break-make conversion of completing circuit change over switch.
2. circuit changing switch according to claim 1, it is characterized in that, described circular hole is three, the length of described contact spring (3) is greater than the distance of adjacent two adjacent circular holes and is less than first to the 3rd distance between circular hole, and described contact spring (3) stretches out spring base cylinder (2-1) outer wall distance for 0.15mm～0.2mm.
3. circuit changing switch according to claim 1 and 2, is characterized in that, described contact spring (3) is for having the strip metal sheet of angle of bend, and described angle of bend is 15 °～30 °.
4. circuit changing switch according to claim 1 and 2, is characterized in that, the drag of described spring (4) is 1.5～3 times that all contact springs (3) and contact (6) contact drag summation.
5. circuit changing switch according to claim 1 and 2, is characterized in that, also comprises clamp (5), is installed on switch cylinder (1-1) upper end, for all parts are sealed as global facility.
6. change over switch as claimed in claim 1 or 2, is characterized in that, described contact spring (3) and contact (6) surface are through silver-plated processing, and the surface of described contact spring (3) and contact (6) is also coated with DJB-823 solid film protective agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725324.2U CN203536269U (en) | 2013-11-16 | 2013-11-16 | Circuit change over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725324.2U CN203536269U (en) | 2013-11-16 | 2013-11-16 | Circuit change over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536269U true CN203536269U (en) | 2014-04-09 |
Family
ID=50422450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320725324.2U Withdrawn - After Issue CN203536269U (en) | 2013-11-16 | 2013-11-16 | Circuit change over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578833A (en) * | 2013-11-16 | 2014-02-12 | 湖北三江航天红林探控有限公司 | Circuit changing switch |
-
2013
- 2013-11-16 CN CN201320725324.2U patent/CN203536269U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578833A (en) * | 2013-11-16 | 2014-02-12 | 湖北三江航天红林探控有限公司 | Circuit changing switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203536269U (en) | Circuit change over switch | |
| CN103578833B (en) | Circuit changing switch | |
| CN104269301B (en) | In the microswitch that mainframe computer is controlled | |
| CN205680570U (en) | Travel switch | |
| CN104269303B (en) | It is capable of the switch of accurately control | |
| CN106158477B (en) | A kind of microswitch | |
| CN207441626U (en) | A kind of spindle mounting structure of circuit breaker operation mechanism | |
| CN201252047Y (en) | Movable end connecting structure for sealed high-pressure vacuum breaker | |
| CN207690687U (en) | A kind of novel touch-switch | |
| CN203707041U (en) | Multi-level electromagnetic switch | |
| CN202977291U (en) | Miniaturization glass vacuum switch tube | |
| CN202711964U (en) | Electrical switch and moving contact used by same | |
| CN104269302B (en) | Can increase the gauge tap of processing safety | |
| CN208352151U (en) | A kind of state-indicating switch | |
| CN103489553A (en) | Potentiometer provided with roller | |
| CN203774097U (en) | Novel structural rivet type electrical contact | |
| CN112873092A (en) | Clamping device for machining intelligent cash register circuit protection pipeline | |
| CN202205643U (en) | Vacuum switch tube for 24kV plateau type vacuum contactor | |
| CN203456375U (en) | Missile-borne inertia switch | |
| CN203351507U (en) | Reed resetting device | |
| CN203056173U (en) | Spiral ring spring contact finger | |
| CN204144145U (en) | 12KV is with copper fairlead vacuum switch tube | |
| CN204614725U (en) | A kind of high-pressure vacuum breaker | |
| CN203300539U (en) | Contact for vacuum switch of longitudinal magnetic field | |
| CN103295831B (en) | A kind of vertical magnetic field vacuum switch contact |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140409 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |