Search

CN-115732272-B - Radio frequency relay with bifurcation structure

CN115732272BCN 115732272 BCN115732272 BCN 115732272BCN-115732272-B

Abstract

The invention relates to the field of relays and discloses a radio frequency relay with a bifurcation structure, which comprises a radio frequency cavity, wherein a static contact mechanism is arranged in the radio frequency cavity, a movable contact mechanism and a power mechanism are arranged above the static contact mechanism, the static contact mechanism comprises a main static contact piece, a plurality of auxiliary static contact pieces are circumferentially arranged on the peripheral side of the main static contact piece, the movable contact mechanism comprises a main contact piece, the main contact piece is positioned above the main static contact piece, the main contact piece extends outwards by taking the main contact piece as a center to form a plurality of contact arms, one end of each contact arm, which is far away from the main contact piece, extends outwards to form two driven contact pieces, each driven contact piece is in one-to-one correspondence with each auxiliary static contact piece so as to expand the number of channels of the relay, and each driven contact piece is in contact connection with the corresponding auxiliary static contact piece so as to conduct corresponding radio frequency channels. According to the scheme, on the premise that the working frequency of the relay is not reduced, the multiplication of the shunt number of the radio frequency relay is realized.

Inventors

  • LUO ZHILIANG
  • CHEN LIANMING
  • ZHAO YILONG

Assignees

  • 深圳市西科技术有限公司

Dates

Publication Date
20260512
Application Date
20221119

Claims (9)

  1. 1. A radio frequency relay with a bifurcation structure comprises a radio frequency cavity, wherein a static contact mechanism (2) is arranged in the radio frequency cavity, a movable contact mechanism (1) and a power mechanism (4) are arranged above the static contact mechanism (2), the power mechanism (4) is connected with the movable contact mechanism (1) to drive the movable contact mechanism (1) to approach or separate from the static contact mechanism (2), the radio frequency relay is characterized in that the static contact mechanism (2) comprises a main static contact piece (2-1), a plurality of auxiliary static contact pieces (2-2) are arranged on the periphery of the main static contact piece (2-1) in a surrounding mode, the movable contact mechanism (1) comprises a driving contact piece (1-1), the driving contact piece (1-1) is located above the main static contact piece (2-1), the driving contact piece (1-1) extends outwards by taking the driving contact piece as a center to form a plurality of contact arms (1-4), the contact arms (1-4) are far away from the driving contact piece (1) and extend to the first end and the second end of the driven contact piece (2-2) are respectively corresponding to the first end and the second end of the driven contact piece (2-2) respectively, the driven contact pieces are in contact connection with the corresponding driven static contact pieces (2-2) so as to conduct corresponding radio frequency channels; The power mechanism (4) comprises a plurality of pushing assemblies, each pushing assembly comprises a main pushing rod (4-1) and auxiliary pushing rods (4-2), the lower parts of the main pushing rods (4-1) are connected with the main contact (1-1), two auxiliary pushing rods (4-2) are arranged, the two auxiliary pushing rods (4-2) are respectively connected with the first driven contact (1-2) and the second driven contact (1-3), and different radio frequency channels are conducted by pushing different auxiliary pushing rods (4-2).
  2. 2. The radio frequency relay with the bifurcation structure according to claim 1, wherein a plurality of supporting tables (3) are arranged in the radio frequency cavity, each supporting table (3) is arranged corresponding to each contact arm (1-4), and when the power mechanism (4) drives the contact arm (1-4) to move downwards, the corresponding driven contact piece is in contact connection with the corresponding slave static contact piece (2-2), the supporting table (3) supports the corresponding contact arm (1-4) so as to facilitate the contact stabilization of the driven contact piece and the slave static contact piece (2-2).
  3. 3. The radio frequency relay with the bifurcation structure according to claim 2, wherein a first reinforcing rib (1-5) is arranged on the contact arm (1-4) along the length direction of the contact arm, a second reinforcing rib (1-6) is arranged on the driven contact piece along the length direction of the contact arm, the first reinforcing rib (1-5) is connected with the second reinforcing rib (1-6), and bridging phenomenon is avoided when the driven contact piece is contacted with the driven static contact piece (2-2).
  4. 4. The radio frequency relay with the bifurcation structure according to claim 1, wherein a driving contact is arranged on one side of the driving contact piece (1-1) close to the main static contact piece (2-1), a driven contact is arranged on one side of the first driven contact piece (1-2) and one side of the second driven contact piece (1-3) close to the driven static contact piece (2-2), and the contact arm (1-4) is driven to move downwards through the power mechanism (4) so that the driving contact and the driven contact are in contact connection with the main static contact piece (2-1) and the corresponding driven static contact piece (2-2).
  5. 5. The radio frequency relay with the bifurcation structure according to claim 4, wherein a main static contact is arranged on the upper side of the main static contact piece (2-1) corresponding to the position of the main static contact piece (1-1), a secondary static contact is arranged on the upper side of the secondary static contact piece (2-2) corresponding to the position of the secondary contact piece, and the contact arm (1-4) is driven to move downwards through the power mechanism (4) so as to enable the main static contact and the secondary contact to be in contact connection with the main static contact and the corresponding secondary static contact so as to conduct corresponding radio frequency channels.
  6. 6. The radio frequency relay with the bifurcated structure according to claim 5, characterized in that the contact arm (1-4) and the first and second driven contacts (1-2, 1-3) extending therefrom constitute a Y-shaped structure, the driving contact of the driving contact (1-1) and the extension of the contact arm (1-4) having a first spacing therebetween, the driven contact of the first driven contact (1-2) and the driven contact of the second driven contact (1-3) having a second spacing therebetween, the first spacing being greater than the second spacing, so that each of the driven stationary contacts diverges at the periphery of the main stationary contact.
  7. 7. The radio frequency relay with the bifurcation structure according to claim 1, wherein a guide groove matched with the pushing component is arranged on the radio frequency cavity, and the pushing component is arranged in the guide groove in a penetrating way and is connected with the opposite contact arms (1-4) so as to drive the driving contact piece and the driven contact piece to move up and down along the guide groove.
  8. 8. The radio frequency relay with the bifurcation structure according to claim 7, wherein a plurality of main connection sites are arranged on the periphery side of the driving contact (1-1), the main connection sites are connected with the lower part of the main push rod (4-1), the first driven contact (1-2) is provided with a first connection site, the lower part of one auxiliary push rod (4-2) is connected with the first connection site, the second driven contact (1-3) is provided with a second connection site, and the lower part of the other auxiliary push rod (4-2) is connected with the second connection site.
  9. 9. The radio frequency relay with the bifurcated structure according to claim 1, characterized in that the number of channels of the relay is obtained by multiplying the number of driven contacts provided for each contact arm (1-4) by the number of contact arms (1-4).

Description

Radio frequency relay with bifurcation structure Technical Field The invention relates to the field of relays, in particular to a radio frequency relay with a bifurcation structure. Background In the design of the contact system of the single-pole multi-throw radio frequency relay, the information transmission channel of the cavity generally adopts a rectangular coaxial transmission structure, and the size of the central contact of the main static contact is limited due to the fact that the transmission of higher frequency (more than 20G), so that the number of branches of the relay cannot be expanded, if the number of branches is too large, for example, more than 15 paths, if all the branch static contacts are directly connected with the central static contact through movable contacts, the number of contacts is too dense, and radio frequency transmission performance is affected, and in general, when the number of branch contacts is larger than 10 paths, good matching of the radio frequency channel of more than 20G is difficult to realize. Therefore, the number of branches of the existing relay is generally limited to be within 10 paths, otherwise, radio frequency parameters are greatly reduced, and therefore, a radio frequency relay for realizing the multiplication of the number of branches under the condition of not reducing the insertion loss and the voltage standing wave ratio of the relay needs to be provided. Disclosure of Invention In order to solve the defects in the prior art, the invention provides a novel radio frequency relay with a bifurcation structure, so as to solve the problem of less shunt quantity in the prior art on the premise of not reducing the working frequency of the relay. In order to achieve the above purpose, the present invention adopts the following technical scheme: The radio frequency relay with the bifurcation structure comprises a radio frequency cavity, a static contact mechanism is arranged in the radio frequency cavity, a movable contact mechanism and a power mechanism are arranged above the static contact mechanism, the power mechanism is connected with the movable contact mechanism to drive the movable contact mechanism to approach or separate from the static contact mechanism, the static contact mechanism comprises a main static contact piece, a plurality of auxiliary static contact pieces are arranged around the periphery of the main static contact piece, the movable contact mechanism comprises a driving contact piece, the driving contact piece is arranged above the main static contact piece, the driving contact piece extends outwards by taking the driving contact piece as a center to form a plurality of contact arms, one end of each contact arm, which is far away from the driving contact piece, is outwards extended to form two driven contact pieces, namely a first driven contact piece and a second driven contact piece, each driven contact piece is arranged in one-to-one correspondence with each auxiliary static contact piece to expand the number of channels of the relay, and the driven contact piece is connected with the corresponding auxiliary static contact piece in a contact mode to conduct corresponding radio frequency channels. Further, a plurality of supporting tables are arranged in the radio frequency cavity, each supporting table is arranged corresponding to each contact arm, and when the power mechanism drives the contact arm to move downwards, the corresponding driven contact piece is in contact connection with the corresponding driven contact piece, the supporting tables support the corresponding contact arm, so that the driven contact piece and the driven contact piece can be in contact stability. Further, the contact arm is provided with a first reinforcing rib along the length direction of the contact arm, the driven contact piece is provided with a second reinforcing rib along the length direction of the contact arm, and the first reinforcing rib is connected with the second reinforcing rib, so that bridging phenomenon is avoided when the driven contact piece contacts with the driven contact piece. Further, a driving contact is arranged on one side, close to the main static contact, of the driving contact, a driven contact is arranged on one side, close to the auxiliary static contact, of the first driven contact and the second driven contact, and the driving contact and the driven contact are in contact connection with the main static contact and the corresponding auxiliary static contact by driving the contact arm to move downwards through the power mechanism. Further, a main static contact is arranged at the upper side of the main static contact corresponding to the position of the main static contact, a secondary static contact is arranged at the upper side of the secondary static contact corresponding to the position of the secondary contact, and the power mechanism drives the contact arm to move downwards so that the main static contact and the