CN211507463U - Micro switch - Google Patents
Micro switch Download PDFInfo
- Publication number
- CN211507463U CN211507463U CN202020515662.3U CN202020515662U CN211507463U CN 211507463 U CN211507463 U CN 211507463U CN 202020515662 U CN202020515662 U CN 202020515662U CN 211507463 U CN211507463 U CN 211507463U
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- movable contact
- contact bridge
- spring
- bridge
- cover plate
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Abstract
The utility model relates to an electrical components, in particular to micro-gap switch has solved a micro-gap switch use problem. The movable contact type power supply device comprises an ejector rod, a spring, a shell and a cover plate, wherein a stationary contact is arranged on the cover plate, the movable contact type power supply device further comprises a movable contact bridge, the movable contact bridge and the ejector rod are fixedly assembled or are of an integrated structure, the movable contact bridge and the spring are elastically abutted, and a movable contact is arranged on the movable contact bridge. And the movable contact bridge and the ejector rod are fixedly assembled. The push rod is provided with a flange between two ends, the movable contact bridge is provided with a limiting hole for the push rod to pass through, the flange is assembled between the cover plate and the movable contact bridge, and the push rod is limited by a blocking axis of the flange and the movable contact bridge. The 'ejector rod' and the 'movable contact bridge' are combined into a whole to form a 'contact push rod' component by adopting an ingenious bridge type contact. The structure of the product is small and exquisite, the installation is convenient, the circuit board can be directly welded and installed, holes can be flexibly formed in the circuit board according to the characteristics of the product, and different installation requirements are met.
Description
Technical Field
The utility model relates to an electrical component, in particular to micro-gap switch.
Background
Some products adopt the prototype structure of the existing foot switch on the market to carry out miniaturization, and belong to the mode of borrowing the existing products on the market. Or, the micro switch is influenced by the volume of the existing micro switch, the leading-out terminal mode and the installation mode, or the installation is not performed, or the contact is made to be very small, so that the installation space is insufficient or the reliability of the contact performance is unstable.
SUMMERY OF THE UTILITY MODEL
Not enough to current technique, the utility model provides a micro-gap switch.
In order to realize the purpose, the utility model adopts the technical scheme that: a microswitch comprises an ejector rod, a spring, a shell and a cover plate, wherein a stationary contact is arranged on the cover plate, the microswitch also comprises a movable contact bridge, the movable contact bridge and the ejector rod are fixedly assembled or are of an integrated structure, the movable contact bridge and the spring are elastically abutted, and a movable contact is arranged on the movable contact bridge.
And the movable contact bridge and the ejector rod are fixedly assembled.
The push rod is provided with a flange between two ends, the movable contact bridge is provided with a limiting hole for the push rod to pass through, the flange is assembled between the cover plate and the movable contact bridge, and the push rod is limited by a blocking axis of the flange and the movable contact bridge.
The center of the movable contact bridge is provided with a butting part, and both sides of the movable contact bridge are sequentially provided with a connecting part and an electric connecting part.
The electric connection part is of a V-shaped structure or a U-shaped structure.
The connecting portion width is less than the abutting portion width.
And the cover plate is provided with a mounting hole for assembling and fixing the spring.
The movable contact bridge and the ejector rod are of an integrated structure.
The movable contact bridge is of a disc-shaped structure, the movable contact bridge is elastically abutted to the spring, the cover plate is provided with a limiting bulge, and the spring is sleeved on the limiting bulge to be radially limited.
The spring is of a tower-shaped structure.
The utility model has the advantages that: the utility model provides a micro-gap switch combines the structure of contactor itself under the reliability prerequisite that satisfies the contact, adopts ingenious bridge type contact, unites two into one "ejector pin" and "movable contact bridge" simultaneously, forms a "contact push rod" part. The structure of the product is small and exquisite, the installation is convenient, the circuit board can be directly welded and installed, holes can be flexibly formed in the circuit board according to the characteristics of the product, and different installation requirements are met.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.
Detailed Description
Example 1: as shown in fig. 1, a microswitch comprises a top rod 1, a spring 2, a shell 3 and a cover plate 4, wherein a stationary contact 5 is arranged on the cover plate 4, the microswitch further comprises a movable contact bridge 6, the movable contact bridge 6 and the top rod 1 are fixedly assembled or are in an integrated structure, the movable contact bridge 6 is elastically abutted against the spring 2, and a movable contact is arranged on the movable contact bridge 6. The movable contact bridge 6 and the ejector rod 1 are matched to form a contact push rod type component, so that stable contact, space saving and monitoring of the on-off state of the main contact of the contactor are facilitated, and the position state of the contactor under the condition of contact failure is judged. The movable contact contacts with the fixed contact 5 to realize the communication of the circuit.
The movable contact bridge 6 and the ejector rod 1 are fixedly assembled, in the embodiment, the movable contact bridge 6 and the ejector rod 1 are assembled together, and are convenient to disassemble and replace after faults or damages occur.
The push rod 1 is provided with a flange 7 between two ends, the movable contact bridge 6 is provided with a limiting hole 8 for the push rod 1 to pass through, the flange 7 is assembled between the cover plate 4 and the movable contact bridge 6, and the push rod 1 is limited by a blocking axis of the flange 7 and the movable contact bridge 6. Stop ejector pin 1 through flange 7 and break away from movable contact bridge 6, the spring 2 is stretched into to ejector pin 1 part simultaneously, is favorable to the stability when spring 2 stretches out and draws back, plays certain direction and limiting displacement.
The movable contact bridge 6 is provided with a contact part 9 at the center, and a connecting part 10 and an electric connecting part 11 are sequentially arranged at two sides of the movable contact bridge 6. The abutting part 9 and the connecting plate are of a flat plate type structure, and are beneficial to stably and uniformly elastically abutting against the spring 2.
The width of the connecting part 10 is smaller than that of the abutting part 9, so that the cost is reduced. In addition, when the spring 2 is deflected, the right-angled edge between the connecting portion 10 and the abutting portion 9 may catch the spring 2, limiting its further disengagement or deflection.
Be equipped with on the apron 4 and supply the fixed mounting hole 12 of spring 2 assembly for spring 2 stretches out mounting hole 12 length less, is favorable to restricting the swing of spring 2 and the stable use of switch, avoids spring 2 to break away from.
Example 2: different from embodiment 1, as shown in fig. 2, the movable contact bridge 6 and the carrier rod 1 are of an integrated structure. The movable contact bridge 6 is of a disc-shaped structure, the movable contact bridge 6 is elastically abutted to the spring 2, the cover plate 4 is provided with a limiting bulge 13, and the spring 2 is radially limited by being sleeved on the limiting bulge 13. The spring 2 is of a tower-shaped structure. In the embodiment, the movable contact bridge 6 is integrated with the ejector rod 1, and the movable contact bridge 6 directly presses the spring 2 downwards. In addition, the spring 2 is not fixed in the hole, but is limited and fixed by the limiting protrusion 13. The tower-shaped structure contributes to the stability of the lower end of the spring 2, while the upper end of the spring 2 is also more stable due to the relatively large contact surface. The stationary contact 5 is also provided on the stopper projection 13.
Example 3: different from the embodiment 2, as shown in fig. 3, mainly the shape of the housing 3 is different, and the matching structure of the movable contact bridge 6 and the push rod 1 is suitable for various models.
The utility model has the advantages that: the utility model provides a micro-gap switch combines the structure of contactor itself under the reliability prerequisite that satisfies the contact, adopts ingenious bridge type contact, unites two into one "ejector pin" and "movable contact bridge" simultaneously, forms a "contact push rod" part. The structure of the product is small and exquisite, the installation is convenient, the circuit board can be directly welded and installed, holes can be flexibly formed in the circuit board according to the characteristics of the product, and different installation requirements are met.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description, and are not intended to indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and therefore, are not to be considered as limitations of the present invention, and the fundamental principles, main features, and advantages of the present invention have been shown and described above, as would be understood by those skilled in the art.
Claims (10)
1. A microswitch comprises an ejector rod, a spring, a shell and a cover plate, wherein a stationary contact is arranged on the cover plate.
2. The microswitch of claim 1 wherein said movable contact bridge is fixedly mounted to said carrier bar.
3. The micro-switch as claimed in claim 2, wherein the plunger has a flange between two ends, the movable contact bridge has a position-limiting hole for the plunger to pass through, the flange is assembled between the cover plate and the movable contact bridge, and the plunger is axially limited by the flange and the movable contact bridge.
4. A microswitch as in claim 3 wherein the movable contact bridge has an abutment in the center and a connecting portion and an electrical connection portion on each side of the movable contact bridge.
5. A microswitch as in claim 4 wherein said electrical connection is a V-shaped configuration or a U-shaped configuration.
6. A microswitch as in claim 4 wherein the connecting portion has a width less than the width of the abutment portion.
7. The microswitch of claim 4 wherein said cover plate has mounting holes for mounting and securing springs.
8. The microswitch of claim 2 wherein the movable contact bridge and the plunger are of a unitary construction.
9. The micro-switch as claimed in claim 8, wherein the movable contact bridge is a disk-shaped structure, the movable contact bridge is elastically abutted with a spring, the cover plate is provided with a limit protrusion, and the spring is sleeved on the limit protrusion for radial limit.
10. A microswitch as in claim 9 wherein said spring is tower-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515662.3U CN211507463U (en) | 2020-04-10 | 2020-04-10 | Micro switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515662.3U CN211507463U (en) | 2020-04-10 | 2020-04-10 | Micro switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211507463U true CN211507463U (en) | 2020-09-15 |
Family
ID=72404078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020515662.3U Active CN211507463U (en) | 2020-04-10 | 2020-04-10 | Micro switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211507463U (en) |
-
2020
- 2020-04-10 CN CN202020515662.3U patent/CN211507463U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |