CN101364503B - Microminiature radio frequency electric relay contact system - Google Patents
Microminiature radio frequency electric relay contact system Download PDFInfo
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- CN101364503B CN101364503B CN2008102316516A CN200810231651A CN101364503B CN 101364503 B CN101364503 B CN 101364503B CN 2008102316516 A CN2008102316516 A CN 2008102316516A CN 200810231651 A CN200810231651 A CN 200810231651A CN 101364503 B CN101364503 B CN 101364503B
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- fixed contact
- stationary contact
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- normally closed
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Abstract
The invention relates to a micro-miniature RF relay contact system, including a base, a normal open stationary contact, a normal close stationary contact and a moveable spring. Pins (I, II and III) are vertically fixed on the base. The normal open stationary contact and the normal close stationary contact all have a straight sheet-shaped structure, and the tail parts thereof are respectively fixed on the pins (I and II). The moveable spring has a broken line type sheet-shaped structure, and the tail part thereof is fixed on the pin (III). The end part of the moveable spring is positioned between the normal open stationary contact and the normal close stationary contact. The normal open stationary contact, the normal close stationary contact and the moveable spring are all perpendicular to the upper plane of the base. The included angles of the normal open stationary contact and the end part of the moveable spring and the normal close stationary contact and the moveable spring are in a right angle relation, so that the end part of the moveable spring and end faces of the normal open stationary contact and the normal close stationary contact are in a line contact form. The stationary contacts of the invention can work on the frequency bands with direct current more than 1GHz, and the invention has very low insertion loss and strong radio-frequency power transmission capability, and is suitable for the occasions, such as high bandwidth, low loss, and high power.
Description
Technical field
The present invention relates to a kind of microminiature radio frequency electric relay contact system.
Background technology
Fixed contact and movable contact spring that existing microminiature seal radiofrequency electromagnetic relay contact system generally adopts head to have warp architecture constitute, this structure is owing to exist bigger factors such as distributed capacitance between fixed contact and movable contact spring, therefore its contact radio-frequency performance generally only can reach 0～500MHz, the nominal maximum frequency range reaches 0～1000MHz, higher contact operating frequency will cause that isolation descends rapidly between break contact, insert loss and standing wave voltage and rise rapidly, cause product not use.
Summary of the invention
The technical problem that the present invention solves: design a kind of microminiature radio frequency electric relay contact system, its fixed contact is designed to straight laminated structure, makes movable contact spring end and fixed contact end face be the line contact form.This structure has farthest been improved the distributed constant of contact system, makes the radio-frequency performance of contact can break through the bandwidth of present subminiature relay 0～1000MHz, reaches 0～1800MHz or higher.
Technical solution of the present invention: a kind of microminiature radio frequency electric relay contact system, comprise base, often open fixed contact, normally closed fixed contact and movable contact spring, vertical fixing has pin I, pin II and pin III on the base.Describedly often open fixed contact and normally closed fixed contact is straight laminated structure, its afterbody is separately fixed on pin I and the pin II; Movable contact spring is the broken-line type laminated structure, and its afterbody is fixed on the pin III, and the end of movable contact spring often opening between fixed contact and the normally closed fixed contact, and it is all vertical with the last plane of base often to open fixed contact, normally closed fixed contact and movable contact spring; The described angle of often opening fixed contact and normally closed fixed contact and movable contact spring end meets at right angles, and makes movable contact spring end and the end face of often opening fixed contact and normally closed fixed contact be the line contact form.
Describedly often open fixed contact and normally closed fixed contact is two groups, lay respectively at the two ends of base, movable contact spring is two, is positioned at the middle part of base.
The described afterbody of often opening fixed contact and normally closed fixed contact is vertically welded in respectively on pin I and the pin II, and the afterbody of movable contact spring is vertically welded on the pin III.
Advantage that the present invention compared with prior art has and effect:
1, has littler distributed capacitance between break contact of the present invention, therefore have higher isolation.
2, straight fixed contact and movable contact spring constitutes simple right-angle structure during the closing of contact of the present invention, makes littler distributed inductance and the distributed capacitance of generation on the contact, therefore has littler standing wave voltage.
3, movable contact spring end of the present invention and fixed contact end face are the line contact form, and contact point has bigger footprint pressure, make the contact contact reliability higher.
4, fixed contact of the present invention can be operated in direct current to the frequency range more than the 1GHz, has very low insertion loss and stronger radio-frequency power transmittability, is applicable to high bandwidth, small-power and the adaptive occasion of high environment.
Description of drawings
Fig. 1 is a structural perspective of the present invention,
Fig. 2 is a structure vertical view of the present invention.
Embodiment:
1,2 a kind of embodiment of the present invention is described in conjunction with the accompanying drawings.
A kind of microminiature radio frequency electric relay contact system, comprise base 1, often open fixed contact 2, normally closed fixed contact 3 and two movable contact springs 4, vertical fixing has pin I 5 on the base 1, pin II 6 and pin III7, pin IV8, often open fixed contact 2 and normally closed fixed contact 3 is laminated structure, its afterbody is vertically welded in pin I 5 respectively, on the pin II6, the afterbody of movable contact spring 4 is vertically welded on the pin III7, and fixed contact 2 is often opened often opening between fixed contact 2 and the normally closed fixed contact 3 in the end of movable contact spring 4, normally closed fixed contact 3 and movable contact spring 4 are all vertical with the last plane of base 1.
Often open fixed contact 2 and normally closed fixed contact 3 is two groups, lay respectively at the two ends of base 1, movable contact spring 4 is two, is positioned at the middle part of base 1.Often open fixed contact 2 and normally closed fixed contact 3 and be straight laminated structure, movable contact spring 4 is the broken-line type laminated structure, and the angle of often opening fixed contact 2 and normally closed fixed contact 3 and movable contact spring 4 ends meets at right angles, and makes movable contact spring 4 ends and the end face of often opening fixed contact 2 and normally closed fixed contact 3 be the line contact form.Pin IV8 connects solenoid.
Operation principle: after movable contact spring 4 is subjected to external force effect flexural deformation and normally closed fixed contact 3 separates, contact, constitute the normally open of contact system with often opening fixed contact 2 end faces formation line.When the suffered external force of movable contact spring 4 disappeared, movable contact spring 4 left often to open fixed contact 2 and form line with normally closed fixed contact 3 end faces under the effect of self elastic reaction and contact the normally off of formation contact system.When pin I 5, the pin II 6 of radiofrequency signal by base 1 is transferred to contact system and often opens fixed contact 2 and normally closed fixed contact 3, as the movable contact spring 4 of transmission line inner wire, often open fixed contact 2 and normally closed fixed contact 3 and as between the base 1 of outer conductor because distributed constant is even substantially, therefore have good radio frequency transmission performance.In addition, because movable contact spring 4 and Chang Kai fixed contact 2 and normally closed fixed contact 3 are 90 degree angles and are the line contact form, therefore when disconnecting, the contact has very little distributed capacitance between break contact, so have higher isolation.
Claims (3)
1. microminiature radio frequency electric relay contact system, comprise base (1), often open fixed contact (2), normally closed fixed contact (3) and movable contact spring (4), base (1) is gone up vertical fixing pin I (5), pin II (6) and pin III (7), it is characterized in that: describedly often open fixed contact (2) and normally closed fixed contact (3) is straight laminated structure, its afterbody is separately fixed on pin I (5) and the pin II (6); Movable contact spring (4) is the broken-line type laminated structure, its afterbody is fixed on the pin III (7), and the end of movable contact spring (4) is positioned at often opens between fixed contact (2) and the normally closed fixed contact (3), and it is all vertical with the last plane of base (1) often to open fixed contact (2), normally closed fixed contact (3) and movable contact spring (4); The described angle of often opening fixed contact (2) and normally closed fixed contact (3) and movable contact spring (4) end meets at right angles, and makes movable contact spring (4) end and the end face of often opening fixed contact (2) and normally closed fixed contact (3) be the line contact form.
2. a kind of microminiature radio frequency electric relay contact system according to claim 1, it is characterized in that: describedly often open fixed contact (2) and normally closed fixed contact (3) is two groups, lay respectively at the two ends of base (1), movable contact spring (4) is two, is positioned at the middle part of base (1).
3. a kind of microminiature radio frequency electric relay contact system according to claim 1 and 2, it is characterized in that: the described afterbody of often opening fixed contact (2) and normally closed fixed contact (3) is vertically welded in respectively on pin I (5) and the pin II (6), and the afterbody of movable contact spring (4) is vertically welded in pin III (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102316516A CN101364503B (en) | 2008-10-09 | 2008-10-09 | Microminiature radio frequency electric relay contact system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102316516A CN101364503B (en) | 2008-10-09 | 2008-10-09 | Microminiature radio frequency electric relay contact system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101364503A CN101364503A (en) | 2009-02-11 |
| CN101364503B true CN101364503B (en) | 2011-07-13 |
Family
ID=40390800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102316516A Expired - Fee Related CN101364503B (en) | 2008-10-09 | 2008-10-09 | Microminiature radio frequency electric relay contact system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101364503B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097255A (en) * | 2010-12-16 | 2011-06-15 | 中国振华集团群英无线电器材厂 | Minitype sealed radio frequency electromagnetic relay |
| CN102543583A (en) * | 2011-12-27 | 2012-07-04 | 中国振华集团群英无线电器材厂 | Square sealed radio-frequency electromagnetic relay |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3042773A (en) * | 1958-12-19 | 1962-07-03 | Bell Telephone Labor Inc | Relay |
| CN2906898Y (en) * | 2006-04-26 | 2007-05-30 | 贵州航天电器股份有限公司 | Subminiature sealed electromagnetic relay |
| CN201278336Y (en) * | 2008-10-09 | 2009-07-22 | 陕西群力电工有限责任公司 | Microminiature radio frequency electric relay contact system |
-
2008
- 2008-10-09 CN CN2008102316516A patent/CN101364503B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3042773A (en) * | 1958-12-19 | 1962-07-03 | Bell Telephone Labor Inc | Relay |
| CN2906898Y (en) * | 2006-04-26 | 2007-05-30 | 贵州航天电器股份有限公司 | Subminiature sealed electromagnetic relay |
| CN201278336Y (en) * | 2008-10-09 | 2009-07-22 | 陕西群力电工有限责任公司 | Microminiature radio frequency electric relay contact system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101364503A (en) | 2009-02-11 |
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| C10 | Entry into substantive examination | ||
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Granted publication date: 20110713 Termination date: 20151009 |
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| EXPY | Termination of patent right or utility model |