CN111370254A - Large-current toggle switch with electromagnetic shielding characteristic - Google Patents
Large-current toggle switch with electromagnetic shielding characteristic Download PDFInfo
- Publication number
- CN111370254A CN111370254A CN202010220226.8A CN202010220226A CN111370254A CN 111370254 A CN111370254 A CN 111370254A CN 202010220226 A CN202010220226 A CN 202010220226A CN 111370254 A CN111370254 A CN 111370254A
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- China
- Prior art keywords
- fixed
- contact piece
- shielding cover
- assembly
- switch
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/64—Protective enclosures, baffle plates, or screens for contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/04—Cases; Covers
- H01H23/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/08—Bases; Stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/12—Movable parts; Contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/12—Movable parts; Contacts mounted thereon
- H01H23/16—Driving mechanisms
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Tumbler Switches (AREA)
Abstract
The invention provides a large-current toggle switch with electromagnetic shielding characteristics, which comprises a handle, a shifting fork assembly, a movable contact piece assembly, a fixed contact piece assembly and a shielding cover, wherein the movable contact piece assembly is arranged on the handle; the shifting fork assembly, the movable contact piece assembly and the fixed contact piece assembly are arranged in the shielding cover to form a switch, and the handle penetrates through the top wall of the shielding cover to be arranged on the shifting fork assembly to form an action mechanism. According to the invention, the conductive part of the switch is wrapped by the shielding case, so that the influence of external electromagnetic interference on the switch is effectively solved, and electromagnetic signals in the switch are prevented from being diffused outwards, thereby realizing an electromagnetic shielding function; meanwhile, the problem of ablation of the conductive pins is avoided due to the lead-out of the wiring, so that the environmental adaptability of the electromechanical element is effectively and greatly improved, and the reliability of the equipment is improved.
Description
Technical Field
The invention relates to a large-current toggle switch with electromagnetic shielding characteristics.
Background
The button switch belongs to electromechanical elements, is a manual control switch, realizes the switch conversion by manually pulling a button handle, has the characteristics of small volume, simple and convenient operation, high reliability, good hand feeling and the like, is widely applied to the fields of aviation, aerospace, ships, weapons, electronics and the like, and plays a role in connecting and disconnecting circuits in electronic equipment, instruments and meters.
At present, higher requirements are provided for the toggle switch with the traditional structure, the toggle switch needs to have the capability of resisting electromagnetic interference, namely, the electromagnetic shielding function is needed, the reliability and the safety of the toggle switch are improved, in the prior art, the electromagnetic shielding function is not considered when the traditional toggle switch is designed, the shell of the traditional toggle switch is formed by plastic compression molding or is formed by riveting a plastic base and a metal shell, the metal does not completely wrap the electric conductor, the intercepting electric conductor is exposed outside, or a larger gap exists between the exposed metals, so the electromagnetic shielding function is not provided, and the requirements of the existing market cannot be met.
Disclosure of Invention
In order to solve the technical problems, the invention provides the high-current toggle switch with the electromagnetic shielding characteristic, which can effectively realize electromagnetic shielding and has strong environment adaptability and high reliability.
The invention is realized by the following technical scheme.
The invention provides a large-current toggle switch with electromagnetic shielding characteristics, which comprises a handle, a shifting fork assembly, a movable contact piece assembly, a fixed contact piece assembly and a shielding cover, wherein the movable contact piece assembly is arranged on the handle; the shifting fork assembly, the movable contact piece assembly and the fixed contact piece assembly are arranged in the shielding cover to form a switch, and the handle penetrates through the top wall of the shielding cover to be arranged on the shifting fork assembly to form an action mechanism; the shielding cover is wrapped and fixed with a shielding cover with an open top, an opening is formed in the bottom of the shielding cover, connecting outgoing lines of the movable contact piece assembly and the fixed contact piece assembly are led out through the opening, a mounting plate assembly is arranged at the position of the open top of the shielding cover and covers and is mounted on the shielding cover, a flexible sealing ring is fixedly covered on the mounting plate assembly, and the handle penetrates through the sealing ring and the mounting plate assembly and is fixed on the sealing ring.
The sealing ring and the mounting plate assembly are fixed on the shielding cover through mounting screws.
The handle is fixed on the support frame, pressure springs are respectively arranged on two sides of the support frame, the upper ends of the pressure springs are fixed on the side edge of the bottom end of the shifting fork assembly, pull rods are fixed at the lower ends of the pressure springs, movable contact piece assemblies are fixed at the lower ends of the pull rods and are positioned above the fixed contact piece assemblies and can be in contact with the fixed contact piece assemblies under the driving of the pull rods.
And a pressure spring sleeve is sleeved on the pressure spring.
The upper end of the pressure spring is fixed in a rotating way through a shaft pin.
The shielding cover is fixed on the shielding cover through a pin, and the pin is located at the position, close to the top edge, of the upper portion of the shielding cover.
And a U-shaped spring piece is fixed at the bottom end of the supporting frame.
The invention has the beneficial effects that: the conductive part of the switch is wrapped by the shielding cover, so that the influence of external electromagnetic interference on the switch is effectively solved, and electromagnetic signals in the switch are prevented from being diffused outwards, so that the electromagnetic shielding function is realized; meanwhile, the problem of ablation of the conductive pins is avoided due to the lead-out of the wiring, so that the environmental adaptability of the electromechanical element is effectively and greatly improved, and the reliability of the equipment is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view schematic of fig. 1.
In the figure: 1-handle, 2-sealing ring, 3-mounting screw, 4-mounting plate component, 5-shifting fork component, 6-compression spring sleeve, 7-moving contact piece component, 8-fixed contact piece component, 9-base component, 10-shielding cover, 11-U-shaped spring piece, 12-supporting frame, 13-pull rod, 14-compression spring, 15-shaft pin, 16-pin, 17-sealing washer and 18-rivet.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 and 2, the large current toggle switch with electromagnetic shielding feature comprises a handle 1, a fork assembly 5, a moving contact assembly 7, a fixed contact assembly 8 and a shielding cover 9; the shifting fork assembly 5, the movable contact piece assembly 7 and the fixed contact piece assembly 8 are arranged in the shielding cover 9 to form a switch, and the handle 1 penetrates through the top wall of the shielding cover 9 and is arranged on the shifting fork assembly 5 to form an action mechanism; the shielding cover 9 is wrapped and fixed with a shielding cover 10 with an open top, the bottom of the shielding cover 10 is provided with an opening, connecting outgoing lines of the movable contact piece assembly 7 and the fixed contact piece assembly 8 are led out through the opening, a mounting plate assembly 4 is arranged at the position of the open top of the shielding cover 10 and is covered and mounted on the shielding cover 9, a flexible sealing ring 2 is covered and fixed on the mounting plate assembly 4, and the handle 1 penetrates through the sealing ring 2 and the mounting plate assembly 4 and is fixed on the sealing ring 2.
The sealing ring 2 and the mounting plate assembly 4 are fixed to the shielding case 9 through mounting screws 3.
The handle 1 is fixed on a supporting frame 12, pressure springs 14 are respectively arranged on two sides of the supporting frame 12, the upper ends of the pressure springs 14 are fixed on the side edge of the bottom end of the shifting fork assembly 5, pull rods 13 are fixed at the lower ends of the pressure springs 14, a movable contact piece assembly 7 is fixed at the lower end of each pull rod 13, and the movable contact piece assembly 7 is located above a fixed contact piece assembly 8 and can be in contact with the fixed contact piece assembly 8 under the driving of the pull rods 13.
The compression spring 14 is sleeved with a compression spring sleeve 6.
The upper end of the pressure spring 14 is fixed in a rotating way through a shaft pin 15.
The shielding case 10 is fixed to the shielding case 9 through a pin 16, and the pin 16 is located at the upper part of the shielding case 10 close to the top edge.
And a U-shaped spring piece 11 is fixed at the bottom end of the support frame 12.
Example 1
In an embodiment based on the above scheme, as shown in fig. 1 and fig. 2, the whole body is composed of three major parts, namely a shielding body, an actuating mechanism and a contact mechanism.
The shielding body comprises a shielding cover 10, a mounting plate component 4 (formed by riveting a mounting plate and a mounting threaded sleeve), a pin 16, a handle 1 and other parts, the spherical shape of the handle 1 is tightly pressed by the mounting plate component 4 to form seamless connection, the mounting plate component 4 and the shielding cover 10 are connected together through the pin 16 to form seamless connection, and the shielding cover 10 wraps the contact mechanism of the switch together. Namely, after the traditional switch is assembled, the whole switch is arranged in the shielding case 10, and then the drill is used for drilling the shielding case 10 and the mounting plate in a matching mode, so that the shielding case 10 and the mounting plate can not be dislocated, and the contact performance is influenced.
The switch contact mechanism comprises a movable contact piece assembly 7 (formed by riveting a movable contact piece and a movable contact), a fixed contact piece assembly 8 (formed by riveting a fixed contact piece and a fixed contact), a base assembly (formed by injection molding of a conductive pin and a common conductive pin through a mold), a pressure spring 14, a pressure spring sleeve 6, a pull rod 13, a support frame 12, a U-shaped spring piece 11, a shaft pin 15 and the like. The moving contact and the fixed contact are formed by cold heading of a die, and a silver alloy material with good conductivity, short arcing time and high current resistance is adopted, so that the high-current function of the switch is realized.
The contact mechanism of the traditional switch is different from the switch contact mechanism of the invention in that the fixed contact is directly replaced by a conductive pin, the conductive pin is usually formed by a brass bar vehicle, brass is a good conductor, but the contact is easy to ablate in the power-on and power-off process, thereby influencing the use of the switch.
The working principle is as follows:
the toggle switch is a single-knife three-position switch, has a bilateral automatic reset function, has the same pulling direction and connecting direction of a handle, and is tightly installed with a panel of the whole machine by 2 installation screws.
In a free state, the handle 1 is in the middle position, and the circuit is normally open; when the handle 1 is pulled by external force, the handle 1 rotates by taking the spherical circle center of the handle as the center, the shifting fork assembly 5 is driven to extrude the U-shaped spring piece 11, the pull rod 13 is driven to move towards the middle part, the pull rod 13 extrudes the compression spring 14, the movable contact piece assembly 7 is driven to jump up and down by taking the V-shaped groove of the supporting frame 12 as a fulcrum, the movable contact on the movable contact piece assembly 7 is contacted with the fixed contact on the fixed contact piece assembly 8, and the circuit is conducted. When the handle 1 is pulled, the U-shaped spring piece 11 and the compression spring 14 form elastic potential energy, when the external force disappears, the handle automatically resets under the elastic action of the U-shaped spring piece 11 and the compression spring 14, the switch returns to a free state, and the circuit is disconnected.
Claims (7)
1. The utility model provides a heavy current button switch with electromagnetic shield characteristics, includes handle (1), fork assembly (5), movable contact piece subassembly (7), fixed contact piece subassembly (8), shield cover (9), its characterized in that: the shifting fork assembly (5), the movable contact piece assembly (7) and the fixed contact piece assembly (8) are arranged in the shielding cover (9) to form a switch, and the handle (1) penetrates through the top wall of the shielding cover (9) and is arranged on the shifting fork assembly (5) to form an action mechanism; the shielding cover (9) is wrapped by and fixed with a shielding cover (10) with an opening at the top, the bottom of the shielding cover (10) is provided with an opening, a connection outlet of the movable contact piece assembly (7) and the fixed contact piece assembly (8) is led out through the opening, a mounting plate assembly (4) is arranged at the opening at the top of the shielding cover (10) to be covered and mounted on the shielding cover (9), a flexible sealing ring (2) is covered and fixed on the mounting plate assembly (4), and the handle (1) penetrates through the sealing ring (2) and the mounting plate assembly (4) and is fixed on the sealing ring (2).
2. The high current toggle switch with electromagnetic shielding features of claim 1, wherein: the sealing ring (2) and the mounting plate component (4) are fixed on the shielding cover (9) through mounting screws (3).
3. The high current toggle switch with electromagnetic shielding features of claim 1, wherein: the handle (1) is fixed on the support frame (12), pressure springs (14) are respectively arranged on two sides of the support frame (12), the upper ends of the pressure springs (14) are fixed on the bottom end side edge of the shifting fork assembly (5), pull rods (13) are fixed at the lower ends of the pressure springs (14), movable contact piece assemblies (7) are fixed at the lower ends of the pull rods (13), and the movable contact piece assemblies (7) are located above the fixed contact piece assemblies (8) and can be driven by the pull rods (13) to be in contact with the fixed contact piece assemblies (8).
4. The high current toggle switch with electromagnetic shielding features of claim 3, wherein: the compression spring sleeve (6) is sleeved on the compression spring (14).
5. The high current toggle switch with electromagnetic shielding features of claim 3, wherein: the upper end of the pressure spring (14) is rotatably fixed through a shaft pin (15).
6. The high current toggle switch with electromagnetic shielding features of claim 1, wherein: the shielding cover (10) is fixed on the shielding cover (9) through a pin (16), and the pin (16) is located at the position, close to the top edge, of the upper portion of the shielding cover (10).
7. The high current toggle switch with electromagnetic shielding features of claim 1, wherein: and a U-shaped spring piece (11) is fixed at the bottom end of the supporting frame (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010220226.8A CN111370254A (en) | 2020-03-25 | 2020-03-25 | Large-current toggle switch with electromagnetic shielding characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010220226.8A CN111370254A (en) | 2020-03-25 | 2020-03-25 | Large-current toggle switch with electromagnetic shielding characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111370254A true CN111370254A (en) | 2020-07-03 |
Family
ID=71211245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010220226.8A Pending CN111370254A (en) | 2020-03-25 | 2020-03-25 | Large-current toggle switch with electromagnetic shielding characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111370254A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334521A (en) * | 2022-02-17 | 2022-04-12 | 贵州华阳电工有限公司 | Snap-action mechanism for toggle switch |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570965Y (en) * | 2002-09-16 | 2003-09-03 | 成都旭光电子股份有限公司 | Low-voltage vacuum quenching chamber |
| CN203553007U (en) * | 2013-09-16 | 2014-04-16 | 浙江旭瑞电子有限公司 | Bipolar double-throwing bidirectional automatic-reset toggle switch |
| CN204834464U (en) * | 2015-08-13 | 2015-12-02 | 贵州振华华联电子有限公司 | Toggle switch |
| CN109119285A (en) * | 2018-09-20 | 2019-01-01 | 辽宁易德实业集团有限公司 | A kind of permanent magnet direct-driven intelligent vacuum open-circuit system |
| CN209015942U (en) * | 2018-11-29 | 2019-06-21 | 江苏达鑫电气有限公司 | A kind of shielding case being easily installed |
| CN110808191A (en) * | 2019-12-06 | 2020-02-18 | 麦克奥迪（厦门）电气股份有限公司 | Double-break vacuum switch for inflating cabinet |
-
2020
- 2020-03-25 CN CN202010220226.8A patent/CN111370254A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570965Y (en) * | 2002-09-16 | 2003-09-03 | 成都旭光电子股份有限公司 | Low-voltage vacuum quenching chamber |
| CN203553007U (en) * | 2013-09-16 | 2014-04-16 | 浙江旭瑞电子有限公司 | Bipolar double-throwing bidirectional automatic-reset toggle switch |
| CN204834464U (en) * | 2015-08-13 | 2015-12-02 | 贵州振华华联电子有限公司 | Toggle switch |
| CN109119285A (en) * | 2018-09-20 | 2019-01-01 | 辽宁易德实业集团有限公司 | A kind of permanent magnet direct-driven intelligent vacuum open-circuit system |
| CN209015942U (en) * | 2018-11-29 | 2019-06-21 | 江苏达鑫电气有限公司 | A kind of shielding case being easily installed |
| CN110808191A (en) * | 2019-12-06 | 2020-02-18 | 麦克奥迪（厦门）电气股份有限公司 | Double-break vacuum switch for inflating cabinet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334521A (en) * | 2022-02-17 | 2022-04-12 | 贵州华阳电工有限公司 | Snap-action mechanism for toggle switch |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200703 |