CN116417292A

CN116417292A - Control switch

Info

Publication number: CN116417292A
Application number: CN202111669335.9A
Authority: CN
Inventors: 彭琼; 林浩; 龚祚勇; 廖茹嘉; 周现华
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-07-11

Abstract

The utility model provides a control switch, contact and separation of moving contact piece (101) and corresponding stationary contact group (2) of moving contact system (1) realize the switch-on and the disconnection of contactor, its characterized in that: the movable contact system (1) is connected with a direct-acting driving magnetic system (3), the rotating driving magnetic system (4) is connected with the movable contact system (1) through a transmission system (5), the rotating driving magnetic system (4) can drive the movable contact system (1) to rotate through the transmission system (5), and the direct-acting driving magnetic system (3) can drive the movable contact system (1) to directly move. The structure of the existing single-pole single-throw contactor is improved, so that the single-pole double-throw function of a product is realized for the single-movable iron core and the single-movable contact, the space occupied by the multipole contactor is reduced, the single-pole failure is also solved for the single-movable contact, and meanwhile, the sealing performance of the contactor is effectively improved.

Description

Control switch

Technical Field

The invention belongs to the technical field of piezoelectric devices, and particularly relates to a control switch.

Background

The contactor is characterized in that a magnetic field is generated by flowing current through a coil, so that a contact is closed, and effective power transmission is realized. The conventional contactor consists of an electromagnetic system (a movable iron core, a static iron core, an electromagnetic coil), a contact system and an arc extinguishing device. When the electromagnetic coil of the contactor is electrified, a strong magnetic field is generated, so that the static iron core generates electromagnetic attraction to attract the movable iron core and drive the contact to act, and the contact is closed; when the coil is powered off, the electromagnetic attraction force disappears, the movable iron core is released under the action of the release spring, the contact is restored, and the contact is disconnected.

The existing monopole direct current contactor is usually provided with two static contacts, a movable contact plate, and under the action of an electromagnetic loop, a push rod part drives the movable contact plate to move upwards, so that the movable contact plate is contacted with the static contacts to realize loop connection. In the prior art, in order to perform multi-loop control by using contactors, a plurality of single-pole contactors are generally stacked and matched, but the conventional manner of performing multi-loop control by using single-pole contactors is higher in violation cost and larger in occupied space. And the independent control and the monopole contactor are combined, so that when one monopole product is out of order, the other pole cannot realize the cutting function, and a great potential safety hazard exists. Meanwhile, the arc extinguishing performance of the high-voltage contactor requires higher sealing and inflating performance of the arc extinguishing chamber of the contactor, and the traditional mode of performing multi-loop control by overlapping the single-pole contactor is difficult to meet the aim of higher sealing and inflating performance.

Disclosure of Invention

The invention aims at overcoming the defects of the existing mode of performing multi-loop control by utilizing single-pole contactor superposition, and provides a control switch, which improves the structure of the existing single-pole single-throw contactor, controls double coils through a circuit board, respectively realizes the rotation and the direct motion of a movable iron core, and further drives the rotation and the direct motion of a contact so as to realize the single-pole double-throw function of a product for the single-pole iron core and the single-pole contact, reduce the occupied space of the multi-pole contactor, and solve the potential safety hazard problem that the single-pole is invalid and the other pole is still conducted. The magnetic holding system and the transmission system are embedded in the arc extinguishing chamber, and only the excitation source and the magnetic conduction piece are arranged outside the arc extinguishing chamber, so that the sealing performance of the contactor is effectively improved.

Technical proposal

In order to achieve the technical purpose, the invention provides a control switch, which comprises a moving contact system and a fixed contact group, wherein the contact and separation of a moving contact blade of the moving contact system and the corresponding fixed contact group are used for realizing the connection and disconnection of a contactor, and the control switch is characterized in that: the movable contact system is connected with a direct-acting driving magnetic system, the rotating driving magnetic system is connected with the movable contact system through a transmission system, the rotating driving magnetic system can drive the movable contact system to rotate through the transmission system, and the direct-acting driving magnetic system can drive the movable contact system to directly act.

Further, the rotary driving magnetic system and the direct-acting driving magnetic system are connected to a circuit board, and the circuit board can control the sequence of actions of the rotary driving magnetic system and the direct-acting driving magnetic system.

Further, the transmission system is located at the outer side of the moving contact system and connected with the contact support of the moving contact system, and the rotation driving magnetic system is connected with the transmission system and located at the outer side of the moving contact system.

Further, the transmission system comprises a transmission plate, the transmission plate and the rotation plate are arranged together and can synchronously rotate, the rotation driving magnetic system can drive the rotation plate to rotate and link the transmission plate to rotate, and the rotation of the transmission plate drives the movable contact base to rotate so as to drive the movable contact blade of the movable contact system to rotate.

Further, the contact support comprises a moving contact base, one end of a contact rotating shaft is connected with the moving contact base, the other end of the contact rotating shaft is connected with the transmission plate, and the transmission plate can drive the contact support to rotate through the contact rotating shaft in the rotating process.

Further, an elastic piece is arranged on the transmission system and can be used for resetting the transmission plate.

One end of the contact rotating shaft is fixed on the lower surface of the movable contact base, and the other end of the contact rotating shaft extends into the transmission linkage slide slot hole on the transmission plate.

Further, the transmission plate and the rotating plate are coaxially arranged at the upper end of the iron core.

Further, the elastic piece is a return spring, one end of the return spring is arranged on the contact rotating shaft, and the other end of the return spring is arranged on a spring shaft on the transmission plate.

Further, a non-magnetic conductive plate is arranged between the upper ends of the two side walls of the U-shaped magnetic yoke, the kovar is fixedly arranged on the upper surface of the non-magnetic conductive plate, and the iron core sleeve is fixedly arranged on the non-magnetic conductive plate and positioned between the two side walls of the U-shaped magnetic yoke.

Further, an opening is formed in the non-magnetic conduction plate, the iron core sleeve is provided with an outer edge, the iron core sleeve penetrates through the opening, and the iron core sleeve is erected on the non-magnetic conduction plate through the outer edge.

Further, the moving contact system comprises at least one moving contact blade, and the corresponding fixed contact group at least comprises two groups of fixed contacts.

Advantageous effects

The control switch provided by the invention improves the structure of the existing single-pole single-throw contactor, and the double coils are controlled by the circuit board to respectively realize the rotation and the direct motion of the movable iron core, so that the rotation and the direct motion of the contact are driven, the single-pole double-throw function of a product is realized for the single movable iron core and the single movable contact, the space occupied by the multipolar contactor is reduced, and the single movable contact also solves the potential safety hazard problem that the single pole is invalid and the other pole is still conducted. The magnetic holding system and the transmission system are embedded in the arc extinguishing chamber, and only the excitation source and the magnetic conduction piece are arranged outside the arc extinguishing chamber, so that the sealing performance of the contactor is effectively improved.

Drawings

Fig. 1 is a diagram of a contactor product in an embodiment of the invention.

Fig. 2 is a schematic view of the internal layout of the contactor according to an embodiment of the present invention.

FIG. 3 is a schematic representation of the position of a transmission system in an embodiment of the invention.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.

As shown in fig. 1 and 2, the control switch comprises a moving contact system 1 and a fixed contact group 2, wherein the contact and separation between a moving contact piece 101 of the moving contact system 1 and the corresponding fixed contact group 2 are realized, the moving contact system 1 is connected with a direct-motion driving magnetic system 3, a rotation driving magnetic system 4 is connected with the moving contact system 1 through a transmission system 5, the rotation driving magnetic system 4 can drive the moving contact system 1 to rotate through the transmission system 5, and the direct-motion driving magnetic system 3 can drive the moving contact system 1 to move directly. The rotary driving magnetic system 4 and the direct-acting driving magnetic system 3 are connected to a circuit board, and the circuit board can control the sequence of actions of the rotary driving magnetic system 4 and the direct-acting driving magnetic system 3. The transmission system 5 is located at the outer side of the moving contact system 1 and connected with the contact support 102 of the moving contact system 1, and the rotation driving magnetic system 4 is connected with the transmission system 5 and located at the outer side of the moving contact system 1. The rotary driving magnetic system 4 and the direct-acting driving magnetic system 3 are connected to a circuit board, and the circuit board can control the sequence of actions of the rotary driving magnetic system 4 and the direct-acting driving magnetic system 3. The different sequence of the actions of the rotary driving magnetic system 4 and the linear driving magnetic system 3 enables the corresponding rotary and linear moving sequences of the moving contact system 1 to be different, and further enables the moving contact system 1 to be contacted with and separated from the corresponding fixed contact groups 2 at different positions.

The following describes the embodiment in detail by taking the circuit board to control the rotation driving magnetic system 4 to operate first and taking the following operation of the direct-acting driving magnetic system 3 as an example.

As shown in fig. 3, the transmission system 5 includes a transmission plate 501, where the transmission plate 501 and the rotation plate 406 are assembled together and can rotate synchronously, the rotation driving magnetic system 4 can drive the rotation plate 406 to rotate and link the transmission plate 501 to rotate, and the rotation of the transmission plate 501 drives the moving contact base 102a to rotate so as to drive the moving contact blade 101 of the moving contact system 1 to rotate. The contact support 102 further specifically includes a moving contact base 102a, one end of a contact rotating shaft 502 is connected to the moving contact base 102a, the other end is connected to the transmission plate 501, and the transmission plate 501 can drive the contact support 102 to rotate through the contact rotating shaft 502 in the rotating process. The transmission system 5 is provided with an elastic member return spring 503 which can be used for returning the transmission plate 501. In this embodiment, the elastic member 503 is a return spring, and one end of the return spring is mounted on the contact rotating shaft 502, and the other end of the return spring is mounted on a spring shaft 501b on the transmission plate 501. One end of the contact rotating shaft 502 is fixed on the lower surface of the moving contact base 102a, and the other end extends into a transmission linkage sliding groove hole 501a on the transmission plate 501. The driving plate 501 and the rotating plate 406 are coaxially installed at the upper end of the iron core 403. In this embodiment, the spring shaft 501b is coaxial with the core 403.

As shown in fig. 1, a non-magnetic conductive plate 6 is installed between the upper ends of the two side walls of the U-shaped magnetic yoke 401, the kovar 7 is fixedly installed on the upper surface of the non-magnetic conductive plate 7, and an iron core sleeve 404 is fixedly installed on the non-magnetic conductive plate 6 and located between the two side walls of the U-shaped magnetic yoke 401. Specifically, in this embodiment, the non-magnetic conductive plate 6 is provided with an opening, the core sleeve 404 is provided with an outer edge, and the core sleeve 404 passes through the opening and is set up on the non-magnetic conductive plate 6 through the outer edge.

In order to realize the function of single-pole double-throw, the moving contact piece 101 of the moving contact system 1 is at least one piece, and the corresponding fixed contact group 2 at least comprises two groups of fixed contacts. In this embodiment, the rotation driving magnetic system 4 is connected with the moving contact system 1 through a transmission system 5, the rotation driving magnetic system 4 can drive the moving contact system 1 to rotate through the transmission system 5, and the direct-acting driving magnetic system 3 can drive the moving contact system 1 to directly move. The structure of the existing single-pole single-throw contactor is improved, double coils are controlled through a circuit board, the rotation and the direct motion of a movable iron core are respectively realized, and then the rotation and the direct motion of a contact are driven, so that the single-pole double-throw function of a product is realized for the single-movable iron core and the single-movable contact, the occupied space of the multi-pole contactor is reduced, the single-pole failure is also solved for the single-movable contact, and the potential safety hazard problem that the other pole is still conducted is solved. The magnetic holding system and the transmission system are embedded in the arc extinguishing chamber, and only the excitation source and the magnetic conduction piece are arranged outside the arc extinguishing chamber, so that the sealing performance of the contactor is effectively improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. The utility model provides a control switch, includes moving contact system (1) and static contact group (2), contact and separation of moving contact piece (101) and corresponding static contact group (2) of moving contact system (1) realize the switch-on and the disconnection of contactor, its characterized in that: the movable contact system (1) is connected with a direct-acting driving magnetic system (3), the rotating driving magnetic system (4) is connected with the movable contact system (1) through a transmission system (5), the rotating driving magnetic system (4) can drive the movable contact system (1) to rotate through the transmission system (5), and the direct-acting driving magnetic system (3) can drive the movable contact system (1) to directly move.

2. A control switch as claimed in claim 1, wherein: the rotary driving magnetic system (4) and the direct-acting driving magnetic system (3) are connected to a circuit board, and the circuit board can control the sequence of actions of the rotary driving magnetic system (4) and the direct-acting driving magnetic system (3).

3. A control switch as claimed in claim 1, wherein: the transmission system (5) is located at the outer side of the moving contact system (1) and connected with the contact support (102) of the moving contact system (1), and the rotation driving magnetic system (4) is connected with the transmission system (5) and located at the outer side of the moving contact system (1).

4. A control switch as claimed in claim 1, wherein: the transmission system (5) comprises a transmission plate (501), the transmission plate (501) and the rotating plate (406) are arranged together and can synchronously rotate, the rotating driving magnetic system (4) can drive the rotating plate (406) to rotate and link the transmission plate (501) to rotate, and the transmission plate (501) rotates to drive the moving contact base (102 a) to rotate so as to drive the moving contact sheet (101) of the moving contact system (1) to rotate.

5. A control switch as claimed in claim 1, wherein: the contact support (102) comprises a moving contact base (102 a), one end of a contact rotating shaft (502) is connected with the moving contact base (102 a), the other end of the contact rotating shaft is connected with the transmission plate (501), and the transmission plate (501) can drive the contact support (102) to rotate through the contact rotating shaft (502) in the rotating process.

6. A control switch as claimed in claim 1, wherein: an elastic piece (503) is arranged on the transmission system (5) and can be used for resetting the transmission plate (501).

7. A control switch as claimed in claim 5, wherein: one end of the contact rotating shaft (502) is fixed on the lower surface of the moving contact base (102 a), and the other end of the contact rotating shaft extends into a transmission linkage sliding slot hole (501 a) on the transmission plate (501).

8. A control switch as claimed in claim 5, wherein: the transmission plate (501) and the rotating plate (406) are coaxially arranged at the upper end of the iron core (403).

9. A control switch as claimed in claim 6, wherein: the elastic piece (503) is a return spring (503), one end of the return spring is arranged on the contact rotating shaft (502), and the other end of the return spring is arranged on a spring shaft (501 b) on the transmission plate (501).

10. A control switch as claimed in claim 1, wherein: the non-magnetic conduction plate (6) is arranged between the upper ends of the two side walls of the U-shaped magnetic yoke (401), the kovar (7) is fixedly arranged on the upper surface of the non-magnetic conduction plate (6), and the iron core sleeve (404) is fixedly arranged on the non-magnetic conduction plate (6) and positioned between the two side walls of the U-shaped magnetic yoke (401).

11. A control switch as claimed in claim 1, wherein: the non-magnetic conductive plate (7) is provided with an opening, the iron core sleeve (404) is provided with an outer edge, the iron core sleeve (404) penetrates through the opening, and the iron core sleeve is erected on the non-magnetic conductive plate (6) through the outer edge.

12. A control switch as claimed in claim 1, wherein: the movable contact system (1) comprises at least one movable contact blade (101), and the corresponding fixed contact group (2) at least comprises two groups of fixed contacts.