CN218241689U - Magnetic arc extinguishing microswitch - Google Patents
Magnetic arc extinguishing microswitch Download PDFInfo
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- CN218241689U CN218241689U CN202222014056.5U CN202222014056U CN218241689U CN 218241689 U CN218241689 U CN 218241689U CN 202222014056 U CN202222014056 U CN 202222014056U CN 218241689 U CN218241689 U CN 218241689U
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Abstract
The utility model discloses an arc micro-gap switch is extinguish to magnetism, include: the shell comprises a base and a cover plate which are buckled to enclose an inner cavity of the shell; the upper end of the button is upwards arranged to penetrate through the top surface of the base; the upper part of the bracket is provided with reeds which are arranged in bilateral symmetry, and the reeds are arranged below the button, move downwards along with the button and are abutted against the bottom surface of the button; two groups of moving contacts which are arranged up and down are arranged on the side surface of the bracket; the upper and lower static contacts are arranged in the inner cavity of the shell and are contacted with or disconnected from the moving contact along with the up-and-down movement of the bracket; the base is provided with a static contact piece wiring part and a moving contact piece wiring part; and the arc extinguishing magnet is arranged on the base and the cover plate and arranged on the front side and the rear side of the moving contact, the upper static contact and the lower static contact. The utility model discloses, simple structure is reliable, and the magnetic field that forms through arc extinguishing magnet has weakened the produced electric arc when the switch contact divides absolutely greatly, has improved the life and the security performance of switch greatly, and can use multiple wiring circuit's independent assortment, uses extensively.
Description
Technical Field
The utility model relates to a micro-gap switch technical field, concretely relates to arc micro-gap switch is extinguish to magnetism.
Background
Arcing is a gas discharge phenomenon in which a current passes through a transient spark generated by an insulating medium, such as air. When the mechanical switch device opens a circuit in the atmosphere, the voltage exceeds 12-20V, the opened current exceeds 0.25-1A, a group of approximately cylindrical gas which has extremely high temperature, emits strong light and can conduct electricity, namely an electric arc is usually generated in a contact gap, and the current is not opened until the electric arc is extinguished and the contact gap becomes an insulating medium. The electric arc is very big during the action, very big influence the life of switch, increased the potential safety hazard because the electric spark brings when especially using occasions such as motor car and outdoor high voltage circuit breaker.
Therefore, chinese utility model patent CN215183692U provides a high-voltage large current micro-gap switch, including base and apron, be provided with the button in the base, the movable plate, normally closed terminal and normally open terminal, the one end of normally closed terminal is provided with normally closed contact, the one end of normally open terminal is provided with normally open contact, should normally open, outside the other end of normally closed terminal extends to the base respectively, movable plate one end extends in the direction of button, the other end is provided with the movable contact, the movable contact distributes between normally closed contact and normally open contact, the side of movable contact is including magnet. According to the scheme, the magnetic field of the magnet enables the electric arc to be dragged and repelled in two directions, so that the track of the electric arc is lengthened, the electric arc is rapidly extinguished, the contact loss is reduced to a certain extent, and the electric service life is prolonged.
However, the above solution has the following disadvantages:
(1) The micro switch adopts a single reed, a single tension spring and a single head structure, and has poor stability and reliability;
(2) The micro-gap switch in the scheme is only suitable for the condition of single group of normally open and normally closed wiring, is applied to occasions such as motor cars and outdoor high-voltage circuit breakers, needs to be provided with a plurality of groups of micro-gap switches, increases the cost, occupies larger space and has the problem of inconvenient use.
In view of this, it is urgently needed to improve the structure of the micro switch with the arc extinguishing function in the prior art, so as to improve the stability and reliability of the micro switch, make the micro switch suitable for the use scenario of multiple groups of circuits, and improve the use convenience degree of the micro switch.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the stability and the reliability of the micro-gap switch's that has the arc extinguishing function structure that has now are poor, use inconvenient problem.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:
a magnetically extinguished arc microswitch comprising:
the shell comprises a base and a cover plate which are buckled, and the base and the cover plate enclose an inner cavity of the shell;
the button is arranged in the inner cavity of the shell, and the upper end of the button penetrates out of the top surface of the base upwards;
the support is arranged in the inner cavity of the shell, the upper part of the support is provided with reeds which are arranged in bilateral symmetry, the reeds are arranged below the button, one end of each reed is fixed with the side surface of the support, and the other end of each reed extends outwards and moves downwards along with the button and is abutted against the bottom surface of the button; two groups of moving contacts which are arranged up and down are arranged on the side surface of the bracket;
the moving contact is contacted with or disconnected from the upper static contact and the lower static contact along with the up-and-down movement of the bracket; the base is provided with a static contact piece wiring part connected with the upper static contact piece and the lower static contact piece and a moving contact piece wiring part connected with the moving contact;
and the arc extinguishing magnet is arranged on the base and the cover plate, and the arc extinguishing magnet is arranged on the front side and the rear side of the moving contact, the upper static contact and the lower static contact.
In the above aspect, preferably, the button includes:
the bottom surface of the button base is provided with a reed pressing part which protrudes downwards, and the reed pressing parts are arranged in bilateral symmetry and are used for being abutted against the reeds;
the button part is arranged on the top surface of the button base, the upper end of the button part penetrates out of the top surface of the base, and the side surface of the button part is provided with a spring arrangement groove penetrating through the front end surface and the rear end surface of the button part;
the spring supporting sheet is arranged in the spring arranging groove, a supporting table is arranged on the opposite end surface of the base and the cover plate, and two ends of the spring supporting sheet penetrate through the spring arranging groove and are arranged on the top surface of the supporting table;
the reset spring is arranged in the spring setting groove, and two ends of the reset spring are respectively abutted to the top surface of the spring setting groove and the top surface of the spring supporting sheet.
In the above aspect, preferably, the bracket includes:
the reed mounting part is provided with reed setting grooves on two sides, and the end part of the reed is arranged in the reed setting groove;
the side surface of the moving contact mounting part is provided with a mounting part arrangement groove penetrating through the left side surface and the right side surface of the moving contact mounting part, an upper moving contact mounting part and a lower moving contact mounting part are arranged in the mounting part arrangement groove, and a spring is arranged between the opposite end surfaces of the upper moving contact mounting part and the lower moving contact mounting part; the two groups of moving contacts are respectively arranged symmetrically on the left side and the right side of the upper moving contact mounting part and the lower moving contact mounting part.
In the above aspect, preferably, the spring plate includes a curved portion, and an abutting portion and a supporting portion respectively disposed on both sides of the curved portion; the support portion is provided in the reed installation groove, and the reed pressing portion is used for abutting against the abutting portion.
In the above scheme, preferably, a limiting piece is arranged below the reed, a limiting piece slot is arranged below the reed mounting part, and a limiting piece baffle is arranged at the upper part of the limiting piece slot in a protruding manner;
a limiting piece supporting part is arranged on the base, and one end of the limiting piece is inserted into the limiting piece inserting slot and is abutted against the bottom surface of the limiting piece baffle; the limiting piece supporting part is abutted to the middle of the limiting piece.
In the above aspect, preferably, the arc extinguishing magnet is rectangular, and the arc extinguishing magnet is made of a ru iron boron material; the limiting sheet is made of a non-magnetic stainless steel material, and the reed is made of an elastic stainless steel material.
In the above aspect, preferably, an operating mechanism is disposed on a top surface of the housing, and the operating mechanism includes:
the base is fixed on the top surface of the base, and the top surface of the base is provided with a hinge lug;
and one end of the driving connecting rod is hinged with the hinging lug, the other end of the driving connecting rod is provided with a roller which is rotatably arranged, and the bottom surface of the driving connecting rod is abutted to the button.
In the above aspect, preferably, the drive link includes:
the driving frame comprises a driving frame body, and a connecting lug and a roller frame which are respectively arranged at two ends of the driving frame body, wherein the connecting lugs are arranged at two sides of the hinge lug, and a hinge shaft penetrates through the hinge lug and the connecting lug; the roller is rotationally arranged on the roller frame, and the lower end of the roller frame is provided with a supporting groove;
the supporting plate comprises a first inclined part, a second inclined part and a horizontal part which are sequentially connected, the inclined directions of the first inclined part and the second inclined part are different, and a clamping hook is formed and sleeved on the hinge shaft; the other end of the horizontal part is inserted into the support groove, and the bottom surface of the horizontal part is abutted against the top surface of the button.
In the above aspect, preferably, an abutting portion is provided at an end of the driving rack body close to the engaging lug, and the abutting portion abuts against the second inclined portion.
In the above scheme, preferably, the lower end of the connecting lug is provided with a limiting groove, the side surface of the hinge lug is provided with a limiting convex part, and the limiting convex part is arranged in the limiting groove along with the rotation of the driving frame.
Compared with the prior art, the utility model provides a magnetic extinction arc micro-gap switch, the reed is symmetrical to be set up on the support, moves downwards through the button and the reed butt, promotes the support and moves to realize the moving contact and the contact or the separation of upper and lower static contact piece, the switch drive structure that comprises button, support and reed adopts symmetrical design, makes the reed atress balanced, has improved micro-gap switch's stability and reliability greatly; the base and the cover plate are provided with arc extinguishing magnets to form a good arc extinguishing magnetic field, so that electric arcs are quickly extinguished, the contact loss of the microswitch is reduced, and the electric service life of the microswitch is prolonged; the moving contact and upper and lower static contact set up from top to bottom at support and casing intracavity respectively, and the user can carry out the independent assortment with the use scene according to the design needs when carrying out the wiring operation, greatly reduced in the electric circuit micro-gap switch's installation quantity and the installation space size that occupies, have good use and experience.
Drawings
FIG. 1 is a perspective view of a middle magnetic arc extinguishing microswitch of the present invention;
FIG. 2 is a schematic structural view of a medium magnetic extinction arc micro switch of the present invention;
fig. 3 is a schematic structural view of the button of the present invention;
FIG. 4 is a schematic view of the installation of the middle support, the spring plate and the static contact plate of the present invention;
fig. 5 is a schematic structural diagram of the operating mechanism of the present invention;
fig. 6 is a schematic structural view of the bracket of the present invention;
fig. 7 is a schematic cross-sectional view of the middle magnetic extinction arc microswitch of the invention.
The correspondence between the names and reference numbers of the components in fig. 1 to 7 is as follows:
a shell 1, a button 2, a bracket 3, an arc extinguishing magnet 4, a reed 5, a limiting piece 6, an upper static contact piece 7, a lower static contact piece 8 and an operating mechanism 9,
a base 11, a cover plate 12, a shell inner cavity 13, a supporting platform 14, a limiting piece supporting part 15, a static contact piece wiring part 16, a moving contact piece wiring part 17,
a button base 21, a key part 22, a spring support piece 23, a return spring 24, a reed pressing part 25, a spring setting groove 26,
a reed mounting part 31, a reed mounting groove 32, a spacing piece slot 33, a spacing piece baffle 34, a movable contact mounting part 35, a mounting part setting groove 36, an upper movable contact mounting part 37, a lower movable contact mounting part 38, a spring 39, a movable contact 30,
the curved portion 51, the abutting portion 52, the supporting portion 53,
a base 91, a hinge lug 92, a roller 93, a driving frame 94, a supporting plate 95, a hinge shaft 96,
a driving frame body 941, a connecting lug 942, a roller frame 943, a supporting frame 944,
a first inclined part 951, a second inclined part 952, and a horizontal part 953.
Detailed Description
The utility model provides a magnetism extinguishes arc micro-gap switch has weakened the produced electric arc when the switch contact divides absolutely greatly through the magnetic field of outside strong magnet formation, has reduced the production of electric spark, great improvement the life and the security performance of switch, and can many match independent assortments, simple structure, it is extensive to use. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 and fig. 2, the utility model provides a magnetic extinguishing arc micro switch, including casing 1, button 2, support 3, arc extinguishing magnet 4 and static contact.
The shell 1 comprises a base 11 and a cover plate 12 which are arranged in a buckling mode, and the base 11 and the cover plate 12 enclose a shell inner cavity 13.
As shown in fig. 3 and 7, the button 2 is disposed within the housing interior 13. The button 2 includes a button base 21, a key part 22, a spring support piece 23, and a return spring 24. The bottom surface of the button base 21 is provided with a reed pressing part 25 which protrudes downwards, and the reed pressing parts 25 are arranged in bilateral symmetry. The key part 22 is provided on the top surface of the button base 21, the upper end of the key part 22 is provided to penetrate the top surface of the base 11, and the side surface of the key part 22 is provided with a spring installation groove 26 penetrating the front end surface and the rear end surface of the key part 22. The spring support piece 23 is disposed in the spring installation groove 26, and the support base 14 is provided on the opposite end surfaces of the base 11 and the cover 12. The spring support plate 23 extends through the spring mounting slot 26 at both ends and is mounted on the top surface of the support platform 14 for providing support for the return spring 24. The return spring 24 is disposed in the spring installation groove 26, and both ends of the return spring 24 are respectively abutted against the top surface of the spring installation groove 26 and the top surface of the spring support piece 23.
As shown in fig. 4 and 6, the bracket 3 is disposed in the housing cavity 13, the spring attachment portion 31 is disposed on the upper portion of the bracket 3, the spring attachment grooves 32 are disposed on the left and right sides of the spring attachment portion 31, and the springs 5 are disposed in the spring attachment grooves 23 and symmetrically disposed on both sides of the bracket 3. The reed 5 includes a curved portion 51, and an abutting portion 52 and a supporting portion 53 provided on both sides of the curved portion 51, respectively, the supporting portion 53 is provided in the reed installation groove 31, and the reed press-down portion 25 is for abutting against the abutting portion 52.
The reed 5 is disposed below the button 2, and the reed pressing portion 25 is disposed above the reed 5, and the reed 5 abuts against the bottom surface of the reed pressing portion 25 as the button 3 moves downward.
The lower part of the reed 5 is provided with a limiting sheet 6, the lower part of the reed mounting part 31 is provided with a limiting sheet slot 33, and the upper part of the limiting sheet slot 33 is provided with a limiting sheet baffle 34 in a protruding way. The base 11 is provided with a limiting sheet supporting part 15, and one end of the limiting sheet 6 is inserted into the limiting sheet slot 33 and is abutted against the bottom surface of the limiting sheet baffle 34. The limiting piece supporting part 15 is abutted against the middle part of the limiting piece 6. The limiting sheet 6 is made of non-magnetic stainless steel material, and the reed 5 is made of elastic stainless steel material.
A movable contact mounting part 35 is arranged at the lower part of the bracket 3, a mounting part setting groove 36 which penetrates through the left side surface and the right side surface of the movable contact mounting part 35 is arranged on the side surface of the movable contact mounting part 35, an upper movable contact mounting part 37 and a lower movable contact mounting part 38 are arranged in the mounting part setting groove 36, and a spring 39 is arranged between the opposite end surfaces of the upper movable contact mounting part 37 and the lower movable contact mounting part 38. A group of moving contacts 30 are respectively arranged on the upper moving contact mounting part 37 and the lower moving contact mounting part 38, and two moving contacts 30 in each group of moving contacts 30 are symmetrically arranged on two sides of the bracket 3.
The static contact is arranged in the inner cavity 13 of the shell and comprises an upper static contact 7 and a lower static contact 8. Along with the up-and-down movement of the bracket 3, the movable contact 30 is contacted with or disconnected with the upper static contact 7 and the lower static contact 8. The base 11 is provided with a stationary contact wiring portion 16 for connecting with the upper stationary contact 7 and the lower stationary contact 8, and a movable contact wiring portion 17 for connecting with the movable contact 30.
The quenching magnets 4 are provided on the base 11 and the cover plate 12, and the quenching magnets 4 are provided on the front and rear sides of the movable contact 30, the upper stationary contact 7, and the lower stationary contact 8. The arc extinguishing magnet 4 is in a cuboid shape, and the arc extinguishing magnet 4 is made of Ru ferroboron material.
As shown in fig. 5, the operating mechanism 9 is disposed on the top surface of the housing 1, the operating mechanism 9 includes a base 91 and a driving link, the base 91 is fixed on the top surface of the base 11, and the top surface of the base 91 is disposed with a hinge lug 92. One end of the driving connecting rod is hinged with the hinging lug 92, the other end of the driving connecting rod is provided with a roller 93 which is rotatably arranged, and the bottom surface of the driving connecting rod is abutted with the button 2.
The drive link includes a drive rack 94 and a support plate 95. The driving frame 94 includes a driving frame body 941, an engaging lug 942, and a roller frame 943, and the engaging lug 942 and the roller frame 943 are respectively disposed at both ends of the driving frame body 941. The connecting lugs 942 are disposed on two sides of the hinge lug 92, and the hinge shaft 96 penetrates the hinge lug 92 and the connecting lug 942, so that the driving rack 94 is rotatably disposed on the base 91. The roller 93 is rotatably arranged on the roller frame 943, the lower end of the roller frame 943 is provided with a support frame 944, and the support frame 944 and the roller frame 943 form a support groove in an enclosing manner.
The supporting plate 95 comprises a first inclined part 951, a second inclined part 952 and a horizontal part 953 which are sequentially connected, the inclined directions of the first inclined part 951 and the second inclined part 952 are different, the first inclined part 951 and the second inclined part 952 form a clamping hook, and the clamping hook is sleeved on the hinge shaft 96; the other end of the horizontal portion 953 is inserted into the support groove, and the bottom surface of the horizontal portion 953 abuts against the top surface of the push button 2.
An abutting portion 943 is provided at an end of the driving frame body 941 close to the engaging lug 942, and the abutting portion 943 abuts against the second inclined portion 952. The lower end of the engaging lug 942 is provided with a limiting groove 945, the side of the hinge lug 92 is provided with a limiting convex part 921, and the limiting convex part 921 is arranged in the limiting groove 945 along with the rotation of the driving rack 94.
The working process of the utility model is as follows:
the button 2 moves downwards to push the reed 5 to generate elastic deformation and drive the bracket 3 to move downwards, so that the moving contact 30 arranged on the upper moving contact mounting part 37 is disconnected with the upper static contact 7, and the moving contact 30 arranged in the lower moving contact mounting part 38 is communicated with the lower static contact 8.
In the process that the reed 5 elastically deforms, the limit piece baffle 34 on the support 3 drives the limit piece 6 to move downwards, the middle of the bottom surface of the limit piece 6 is abutted to the limit piece supporting part 15, the limit piece supporting part 15 supports the limit piece 6, the other end of the limit piece 6 is kept stable, the bottom surface of the abutting part 52 of the reed 5 is abutted to the limit piece 6, so that the reed 5 is prevented from deforming too much, and the stability of the internal structure of the switch is influenced.
The button 2 is released, and the return spring 24 drives the button 2 to move upwards. The reed 5 has the tendency of recovering the original state, provides upward force for the bracket 3, drives the bracket 3 to move upwards, and the movable contact 30 arranged on the upper movable contact mounting part 37 is communicated with the upper static contact 7; the lower moving contact mounting part 38 is connected with the upper static contact 7 through the spring 39 and can move upwards along with the support 3, so that the moving contact 30 mounted in the lower moving contact mounting part 38 is disconnected with the lower static contact 8.
The microswitch can also be driven by the operating mechanism 9 on the base 11 and is used for emergency braking of mechanisms such as elevators and the like. During emergency braking, the roller 93 on the driving frame is acted by friction force to drive the driving frame 94 to move downwards, and the supporting plate 95 arranged on the bottom surface of the driving frame body 941 pushes the button 2 to start switching of an emergency braking circuit.
Compared with the prior art, the utility model provides a magnetism extinguishes arc micro-gap switch has following advantage:
(1) An arc extinguishing magnetic field is formed by the arc extinguishing magnet arranged on the shell, so that electric arcs generated when the switch contact is broken are greatly weakened, the generation of electric sparks is reduced, and the service life and the safety performance of the switch are greatly improved; the arc extinguishing magnets are arranged on the front side and the rear side of the moving contact, the upper static contact and the lower static contact, so that the arc extinguishing effect of the magnetic field is improved;
(2) Two groups of moving contacts which are arranged up and down are arranged on the support through the mounting piece arrangement groove on the support and the upper and lower contact mounting pieces on the support, the moving contacts and the reeds are symmetrically arranged on the support, the contact area of the button and the reeds is improved through the reed pressing part at the lower end of the button, so that the reeds are stressed uniformly when being driven by the button to generate elastic deformation, the stability and the reliability of the contact or the breaking action of the moving contacts and the static contact piece driven by action mechanisms such as the button, the support, the reeds and the like are improved, and the microswitch has higher electrical reliability and longer service life;
(3) Two sets of moving contacts and two sets of static contacts that set up about setting up in the casing, every group static contact and moving contact symmetry respectively set up, but independent assortment between moving, the static contact, the different use scene of adaptation has reduced the cost.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (10)
1. A magnetically extinguished arc microswitch comprising:
the shell comprises a base and a cover plate which are buckled, and an inner cavity of the shell is enclosed by the base and the cover plate;
the button is arranged in the inner cavity of the shell, and the upper end of the button penetrates out of the top surface of the base upwards;
the support is arranged in the inner cavity of the shell, the upper part of the support is provided with reeds which are arranged in bilateral symmetry, the reeds are arranged below the button, one end of each reed is fixed with the side surface of the support, and the other end of each reed extends outwards and moves downwards along with the button and is abutted against the bottom surface of the button; two groups of moving contacts which are arranged up and down are arranged on the side surface of the bracket;
the moving contact is contacted with or disconnected with the upper static contact and the lower static contact along with the up-and-down movement of the bracket; the base is provided with a static contact piece wiring part connected with the upper static contact piece and the lower static contact piece and a moving contact piece wiring part connected with the moving contact;
and the arc extinguishing magnet is arranged on the base and the cover plate, and the arc extinguishing magnet is arranged on the front side and the rear side of the moving contact, the upper static contact and the lower static contact.
2. A magnetically extinguished arc microswitch as claimed in claim 1 wherein said button comprises:
the bottom surface of the button base is provided with a reed pressing part which protrudes downwards, and the reed pressing parts are arranged in bilateral symmetry and are used for being abutted against the reeds;
the button part is arranged on the top surface of the button base, the upper end of the button part penetrates out of the top surface of the base, and the side surface of the button part is provided with a spring arrangement groove penetrating through the front end surface and the rear end surface of the button part;
the spring supporting sheet is arranged in the spring arranging groove, a supporting table is arranged on the opposite end surface of the base and the cover plate, and two ends of the spring supporting sheet penetrate through the spring arranging groove and are arranged on the top surface of the supporting table;
the reset spring is arranged in the spring setting groove, and two ends of the reset spring are respectively abutted to the top surface of the spring setting groove and the top surface of the spring supporting sheet.
3. A magnetically extinguished arc microswitch as claimed in claim 2 wherein said support comprises:
the left side and the right side of the reed mounting part are provided with reed arranging grooves, and the end parts of the reeds are arranged in the reed arranging grooves;
the side surface of the moving contact mounting part is provided with a mounting part arrangement groove penetrating through the left side surface and the right side surface of the moving contact mounting part, an upper moving contact mounting part and a lower moving contact mounting part are arranged in the mounting part arrangement groove, and a spring is arranged between the opposite end surfaces of the upper moving contact mounting part and the lower moving contact mounting part; the two groups of moving contacts are respectively arranged symmetrically on the left side and the right side of the upper moving contact mounting part and the lower moving contact mounting part.
4. A magnetically extinguished arc microswitch according to claim 3 wherein said reed comprises a bent arc portion and an abutting portion and a supporting portion respectively provided on both sides of said bent arc portion; the support portion is provided in the reed installation groove, and the reed pressing portion is used for abutting against the abutting portion.
5. The magnetically extinguished arc microswitch of claim 3 wherein a limiting piece is provided below the reed, a limiting piece slot is provided below the reed mounting portion, and a limiting piece baffle is provided outwardly projecting from the upper portion of the limiting piece slot;
a limiting piece supporting part is arranged on the base, and one end of the limiting piece is inserted into the limiting piece slot and is abutted against the bottom surface of the limiting piece baffle; the limiting piece supporting part is connected with the middle part of the limiting piece in an abutting mode.
6. The magnetically extinguished arc microswitch of claim 5 wherein said blowout magnet is cuboid shaped, said blowout magnet being made of a ru fe — b material; the limiting sheet is made of a non-magnetic stainless steel material, and the reed is made of an elastic stainless steel material.
7. A magnetically extinguished arc microswitch as in claim 1 wherein an operating mechanism is provided on the top surface of said housing, said operating mechanism comprising:
the base is fixed on the top surface of the base, and the top surface of the base is provided with a hinge lug;
and one end of the driving connecting rod is hinged with the hinging lug, the other end of the driving connecting rod is provided with a roller which is rotatably arranged, and the bottom surface of the driving connecting rod is abutted with the button.
8. A magnetically extinguished arc microswitch as claimed in claim 7 wherein said drive link comprises:
the driving frame comprises a driving frame body, and a connecting lug and a roller frame which are respectively arranged at two ends of the driving frame body, wherein the connecting lug is arranged at two sides of the hinge lug, and a hinge shaft penetrates through the hinge lug and the connecting lug; the roller is rotationally arranged on the roller frame, and the lower end of the roller frame is provided with a supporting groove;
the supporting plate comprises a first inclined part, a second inclined part and a horizontal part which are sequentially connected, the inclined directions of the first inclined part and the second inclined part are different, and a clamping hook is formed and sleeved on the hinge shaft; the other end of the horizontal part is inserted into the support groove, and the bottom surface of the horizontal part is abutted against the top surface of the button.
9. A magnetically extinguished arc microswitch according to claim 8 wherein the end of the drive rack body adjacent to the connection lug is provided with an abutting portion which abuts against the second inclined portion.
10. A magnetically extinguished arc microswitch according to claim 8 wherein the lower end of the connection lug is provided with a limit groove, the side of the hinge lug is provided with a limit protrusion, and the limit protrusion is disposed in the limit groove along with the rotation of the drive rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222014056.5U CN218241689U (en) | 2022-07-27 | 2022-07-27 | Magnetic arc extinguishing microswitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222014056.5U CN218241689U (en) | 2022-07-27 | 2022-07-27 | Magnetic arc extinguishing microswitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218241689U true CN218241689U (en) | 2023-01-06 |
Family
ID=84679412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222014056.5U Active CN218241689U (en) | 2022-07-27 | 2022-07-27 | Magnetic arc extinguishing microswitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218241689U (en) |
-
2022
- 2022-07-27 CN CN202222014056.5U patent/CN218241689U/en active Active
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