CN112735886B - Single-contact signal switch - Google Patents
Single-contact signal switch Download PDFInfo
- Publication number
- CN112735886B CN112735886B CN202011601537.5A CN202011601537A CN112735886B CN 112735886 B CN112735886 B CN 112735886B CN 202011601537 A CN202011601537 A CN 202011601537A CN 112735886 B CN112735886 B CN 112735886B
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- Prior art keywords
- contact
- movable contact
- binding post
- mounting cavity
- socket piece
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/10—Bases; Stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
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- Push-Button Switches (AREA)
- Tumbler Switches (AREA)
Abstract
The invention relates to a single-contact signal switch.A movable contact binding post and a fixed contact binding post are arranged in a contact mounting cavity, one end of the movable contact binding post is provided with a movable contact arm, a movable contact is arranged on the movable contact arm, a fixed contact is arranged on the fixed contact binding post, and a push rod component is stressed to drive the movable contact and the fixed contact to be closed or disconnected; and a reset spring is arranged between the movable contact arm and the upper cover to drive the movable contact to reset. The advantages are that: firstly, contact points are reduced, and a movable contact and a fixed contact are both reduced, so that contact resistance is reduced; secondly, the movable contact arm is fixed, so that the movable contact can move up and down in the axial direction, circumferential displacement cannot occur, and the movable contact is always in contact with the movable contact at the same position.
Description
Technical Field
The invention relates to a single-contact signal switch.
Background
The existing structure is a bridge structure, a left silver contact and a right silver contact are arranged on a movable contact arm, the two silver contacts and the silver contact on a fixed contact seat form an electric loop, and the contact resistance is large; besides the movable contact arm can axially move up and down in the plug-in seat, the movable contact can shift in the circumferential position relative to the fixed contact along with vibration of an automobile engine and ground bumping during running, and due to the fact that the load of a reverse gear switch of an automobile gearbox is large, arc-drawing carbon deposition and arc-drawing phenomena are easily generated, the carbon deposition can scatter to the periphery and is accumulated around the silver contact point, the movable contact shifts in position and can contact the carbon deposition, and the switch cannot be lighted when being lighted.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a single-contact signal switch.
In order to achieve the purpose, the invention adopts the following technical scheme: a single-contact signal switch comprises a shell, a socket piece, a movable contact and a fixed contact, wherein a through cavity is arranged on the shell, two ends of the through cavity are respectively provided with an opening, the upper section of the through cavity is a socket piece installation cavity, the socket piece is installed in the socket piece installation cavity through one opening, an installation cavity is arranged in the socket piece, and the installation cavity is separated by an upper cover; the socket piece mounting cavity is larger than the ejector rod assembly mounting cavity, a first step surface is arranged between the socket piece mounting cavity and the ejector rod assembly mounting cavity, and a sealing sheet for covering the upper end of the ejector rod assembly mounting cavity is arranged between the lower end of the socket piece and the first step surface; a contact mounting cavity is formed between the sealing sheet and the lower end of the mounting cavity; a movable contact binding post and a fixed contact binding post are arranged in the contact mounting cavity, a movable contact arm is arranged at one end of the movable contact binding post, a movable contact is arranged on the movable contact arm, a fixed contact is arranged on the fixed contact binding post, and the ejector rod assembly drives the movable contact and the fixed contact to be closed or disconnected under the stress; and a reset spring is arranged between the movable contact arm and the upper cover to drive the movable contact to reset.
Furthermore, one end of the movable contact terminal and one end of the static contact terminal extend into the contact mounting cavity, a movable contact arm is arranged at one end of the movable contact terminal, and a movable contact is arranged on the movable contact arm; a stationary contact is arranged at one end of the stationary contact binding post; the movable contact and the fixed contact are positioned on the same vertical shaft, the movable contact arm is provided with a driving point at the upper end of the ejector rod assembly, and a reset spring is arranged between the movable contact arm and the upper cover;
the movable contact is positioned above the driving point, a reset spring mounting groove is arranged on the movable contact arm positioned outside the movable contact, a bulge is arranged at the lower end of the upper cover, one end of the reset spring is abutted against the reset spring mounting groove, the other end of the reset spring is sleeved outside the bulge and abutted against the lower end of the upper cover, and the reset spring is sleeved outside the movable contact and the stationary contact;
a through hole is formed in the center of the protrusion, one end of the static contact binding post extending into the contact mounting cavity penetrates through the through hole, the reset spring is further sleeved outside one end of the static contact binding post penetrating through the protrusion, a static contact binding post reduced section is arranged at the other end of the static contact binding post, a third step surface is formed between the static contact binding post reduced section and the static contact binding post, and the static contact binding post reduced section is exposed on the upper cover;
the movable contact arm is vortex-shaped, a movable contact wiring terminal reduced section is arranged at the other end of the movable contact wiring terminal, a second step surface is formed between the movable contact wiring terminal reduced section and the movable contact wiring terminal, the movable contact wiring terminal reduced section penetrates through a first through hole in the upper cover and is exposed on the upper cover, and the size of the first through hole is matched with that of the movable contact wiring terminal reduced section; a reset spring mounting groove is formed in the upper surface of the other end of the movable contact arm, a movable contact is arranged in the middle of the reset spring mounting groove, and a driving point is arranged below the other end of the movable contact arm;
the centers of the static contact, the movable contact, the driving point and the ball are on the same straight line;
the outer side of the ejector rod assembly mounting cavity of the shell is in a stud shape and is provided with threads, the ejector rod assembly comprises a main body, an ejector rod spring and an ejector rod, an upper groove is formed in the upper end of the main body, the lower end of the ejector rod is inserted into the upper groove, and the ejector rod spring abuts between the outer side of the ejector rod and the bottom of the upper groove; the lower end of the main body is provided with a lower indent, the ball is arranged in the lower indent, and the inner side wall opening of the lower indent is inwards inclined to limit the ball to be separated downwards; the inner side of the ejector rod assembly mounting cavity is provided with a fourth step surface for limiting the falling of the main body, and the outer side of the main body is provided with a limiting ring corresponding to the third step surface.
Furthermore, the outer side of the socket piece is cylindrical and is arranged in the socket piece installation cavity, the outer edge of the sealing piece is abutted to the bottom surface of the socket piece installation cavity, and the upper surface and the lower surface of the outer edge of the sealing piece are provided with sealing rings and sealing pieces.
Furthermore, the upper end of the side wall of the socket piece installation cavity inclines inwards to limit the socket piece, and an annular bulge is arranged at the outer side of the socket piece corresponding to the inclined position of the side wall of the socket piece installation cavity.
Furthermore, an insulating top corresponding to the upper end of the ejector rod assembly is arranged on the sealing sheet; a reset spring is arranged between the insulating top and the upper cover, the upper cover is also provided with a movable contact terminal and a fixed contact terminal, one end of the movable contact terminal and one end of the fixed contact terminal extend into the contact mounting cavity, one end of the movable contact terminal is provided with a movable contact arm, and the movable contact arm is provided with a movable contact; a stationary contact seat is arranged at one end of the stationary contact binding post, and a stationary contact is arranged on the stationary contact seat; the movable contact and the fixed contact are positioned on the same vertical shaft, and the movable contact arm is fixedly connected with the insulating top;
the movable contact arm comprises a horizontal section and an arc-shaped section, a clamping groove is formed in the center of the horizontal section, a protrusion is arranged in the center of the upper end of the insulating top, the protrusion penetrates through the clamping groove to be clamped with the clamping groove and is sleeved outside by a reset spring, the lower end of the reset spring abuts against the movable contact arm, a movable contact located vertically above a stationary contact is arranged at one end of the horizontal section, one end of the horizontal section is connected with one section of the arc-shaped section, the other end of the arc-shaped section is connected to a movable contact wiring terminal, a movable contact wiring terminal reducing section is arranged at the other end of the movable contact wiring terminal, a second step surface is formed between the movable contact wiring terminal reducing section and the movable contact wiring terminal, the movable contact wiring terminal reducing section penetrates through a first through hole in the upper cover and is exposed in the upper cover, and the size of the first through hole is matched with the movable contact wiring terminal reducing section;
one end of the stationary contact binding post is arranged on the sealing sheet to keep a gap with the sealing sheet, the stationary contact base is an arc force arm, one end of the stationary contact base is connected with the stationary contact binding post, the other end of the stationary contact base is provided with a stationary contact, the stationary contact and the sealing sheet keep a gap, the stationary contact base is lower than the movable contact arm, the other end of the stationary contact binding post is provided with a stationary contact binding post reduction section, a third step surface is formed between the stationary contact binding post reduction section and the stationary contact binding post, the stationary contact binding post reduction section penetrates through a second through hole on the upper cover and is exposed on the upper cover, and the size of the second through hole is matched with the stationary contact binding post reduction section.
Further, the outer side of a mandril assembly installation cavity of the shell is in a stud shape and is provided with threads, a limiting ring is arranged at the lower end of the mandril assembly installation cavity, and limiting balls are downward separated; the outer side of the socket piece mounting cavity of the shell is in a nut shape.
Furthermore, the outer side of the socket piece is cylindrical and is installed in the socket piece installation cavity, the outer edge of the sealing sheet is abutted to the bottom surface of the socket piece installation cavity, and sealing rings are further arranged on the upper surface and the lower surface of the outer edge of the sealing sheet.
Furthermore, the lower end of the insulating top is provided with a spherical bulge.
Furthermore, a partition plate is arranged between the reduced section of the fixed contact binding post and the reduced section of the movable contact binding post which are positioned on the upper side of the upper cover.
Furthermore, the corner of the first step surface is a round angle.
The invention has the beneficial effects that: firstly, contact points are reduced, and a movable contact and a fixed contact are both reduced, so that contact resistance is reduced; secondly, the movable contact arm is fixed, so that the movable contact can move up and down in the axial direction, circumferential displacement cannot occur, and the movable contact is always in contact with the movable contact at the same position.
Drawings
FIG. 1 is a sectional view of embodiment 2.
FIG. 2 is a schematic structural view of embodiment 2.
Fig. 3 is a schematic structural view of a socket member according to embodiment 2.
Fig. 4 is a schematic structural diagram of a push rod assembly and a movable contact in embodiment 2.
Fig. 5 is a schematic diagram of the structure of the moving contact and the sealing plate in embodiment 2.
FIG. 6 is a sectional view of embodiment 3.
FIG. 7 is a schematic structural view of example 3.
Fig. 8 is a schematic structural view of a socket member according to embodiment 3.
Fig. 9 is a schematic structural diagram of a push rod assembly and a movable contact of the embodiment 3.
Fig. 10 is the schematic diagram of the moving contact and sealing piece structure of embodiment 3.
The device comprises a shell 1, a socket piece 2, a movable contact 3, a fixed contact 4, an upper cover 5, a sealing sheet 6, a ball 7, a first step surface 8, a push rod assembly 9, an insulating top 10, a movable contact binding post 11, a fixed contact binding post 12, a reset spring 13, a reduced section of the movable contact binding post 14, a reduced section of the fixed contact binding post 15, a fixed contact seat 16, a movable contact arm 17, a sealing ring 18, a horizontal section 19, an arc-shaped section 20, a bulge 21, a limiting ring 22, a main body 23, a 24 push rod spring, a 25 push rod, a driving point 26, a reset spring mounting groove 27, a partition plate 28, a semicircular bulge 29, a semicircular bulge 30, an upper groove 31 and a lower concave 32.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 5 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Embodiment 1 referring to fig. 1-10, a single-contact signal switch includes a housing, a socket piece, a movable contact and a stationary contact, the housing is provided with a through cavity, two ends of the through cavity are respectively provided with an opening, an upper section of the through cavity is a socket piece installation cavity, the socket piece is installed in the socket piece installation cavity through one opening, the socket piece is provided with an installation cavity therein, and the installation cavity is partitioned by an upper cover; the socket piece mounting cavity is larger than the ejector rod assembly mounting cavity, a first step surface is arranged between the socket piece mounting cavity and the ejector rod assembly mounting cavity, and a sealing sheet for covering the upper end of the ejector rod assembly mounting cavity is arranged between the lower end of the socket piece and the first step surface; a contact mounting cavity is formed between the sealing sheet and the lower end of the mounting cavity; a movable contact binding post and a fixed contact binding post are arranged in the contact mounting cavity, a movable contact arm is arranged at one end of the movable contact binding post, a movable contact is arranged on the movable contact arm, a fixed contact is arranged on the fixed contact binding post, and the ejector rod assembly drives the movable contact and the fixed contact to be closed or disconnected under the stress; and a reset spring is arranged between the movable contact arm and the upper cover to drive the movable contact to reset. The movable contact binding post and the fixed contact binding post are fixed.
Example 2 reference is made to fig. 1-5. A single-contact signal switch comprises a shell 1, a socket piece 2, a movable contact 3 and a fixed contact 4, wherein a through cavity is arranged on the shell 1, two ends of the through cavity are respectively provided with an opening, the upper section of the through cavity is a socket piece installation cavity, the socket piece 2 is installed in the socket piece installation cavity through one opening, an installation cavity is arranged in the socket piece, and the installation cavity is separated by an upper cover 5; the other end of the through cavity is a mandril assembly mounting cavity, the mandril assembly 9 is mounted in the mandril assembly mounting cavity through another opening, a ball 7 for driving the mandril assembly 9 to be jacked up is arranged in the other opening, the socket piece mounting cavity is larger than the mandril assembly mounting cavity, a first step surface 8 is arranged between the socket piece mounting cavity and the mandril assembly mounting cavity, and a sealing sheet 6 for covering the upper end of the mandril assembly mounting cavity is arranged between the lower end of the socket piece and the first step surface; a contact mounting cavity is formed between the sealing sheet 6 and the lower end of the mounting cavity; the upper cover 5 is also provided with a movable contact terminal 11 and a fixed contact terminal 12, one end of the movable contact terminal and one end of the fixed contact terminal extend into the contact mounting cavity, one end of the movable contact terminal is provided with a movable contact arm 17, and the movable contact arm 17 is provided with a movable contact 3; a stationary contact 4 is arranged at one end of the stationary contact binding post 12; the movable contact 3 and the fixed contact 4 are positioned on the same vertical shaft, the movable contact arm is positioned at the upper end of the ejector rod component and is provided with a driving point 26, and a return spring 13 is arranged between the movable contact arm 17 and the upper cover 5.
A single contact signal switch, the movable contact 3 locates above the driving point, there are reset spring mounting grooves 27 on the movable contact arm outside the movable contact, the bottom end of the upper cover 5 has projections 21, one end of the reset spring 13 is supported on the reset spring mounting groove 27, another end is supported on the bottom end of the upper cover outside the projection 21, and the reset spring is covered outside the movable contact 3 and stationary contact 4.
A through hole is formed in the center of a bulge 21, one end of a static contact binding post 12 extending into a contact mounting cavity penetrates through the through hole, a reset spring 13 is further sleeved outside one end of the static contact binding post 12 penetrating through the bulge, a static contact binding post reduced section 15 is arranged at the other end of the static contact binding post 12, a third step surface is formed between the static contact binding post reduced section and the static contact binding post, and the static contact binding post reduced section is exposed on an upper cover 5.
A single contact signal switch, the movable contact arm 17 is the vortex shape, one end of the movable contact arm is connected to the movable contact terminal, another end of the movable contact terminal has a movable contact terminal reduced section 14, form the second step surface between movable contact terminal reduced section and the movable contact terminal, the movable contact terminal reduced section crosses the first through hole on the upper cover, expose on the upper cover, the size of the first through hole cooperates with the movable contact terminal reduced section; the upper surface of the other end of the movable contact arm is provided with a return spring mounting groove, the middle of the return spring mounting groove is provided with the movable contact, and the lower surface of the other end of the movable contact arm is provided with a driving point 26.
A single contact signal switch, the centers of a stationary contact 4, a movable contact 3, a driving contact 26 and a ball 7 are on the same straight line.
A single contact signal switch, the outer side of the ejector rod component installation cavity of a shell 1 is in a stud shape and is provided with threads, the ejector rod component comprises a main body 23, an ejector rod spring 24 and an ejector rod 25, an upper groove is formed in the upper end of the main body, the lower end of the ejector rod is inserted into the upper groove, and the ejector rod spring abuts between the outer side of the ejector rod and the bottom of the upper groove; the lower end of the main body is provided with a lower indent, the ball is arranged in the lower indent, and the inner side wall opening of the lower indent is inwards inclined to limit the ball to be separated downwards; the inner side of the ejector rod assembly mounting cavity is provided with a fourth step surface for limiting the falling of the main body, and the outer side of the main body is provided with a limiting ring corresponding to the third step surface.
The utility model provides a single contact signal switch, socket spare outside is the tube-shape, installs in socket spare installation cavity, supports the outer edge of gasket on the bottom surface in socket spare installation cavity, and still is equipped with the sealing washer on the outer edge upper and lower face of gasket.
The utility model provides a single contact signal switch, the lateral wall upper end of socket spare installation cavity inclines spacing socket spare inwards, and the socket spare outside corresponds socket spare installation cavity lateral wall slope department and is equipped with annular arch.
A single-contact signal switch is provided, a clapboard is arranged between a reduced section of a fixed contact binding post and a reduced section of a movable contact binding post on the upper side of an upper cover.
A corner of a first step surface is a round angle.
A single-contact signal switch is provided, wherein a circle of semicircular bulge is arranged between the center and the edge of a sealing sheet. For stretching of the sealing plate.
A single contact signal switch, the moving contact arm has elasticity.
Compared with the existing structure, the single-contact signal switch has the advantages that firstly, the structure is simple, and the cost is reduced by 5.5%; secondly, the original bridge structure is two contact points, the bridge structure is one contact point, and the contact resistance is reduced by 50 percent; and thirdly, the movable contact piece is fixed, the circumferential displacement of the movable contact is limited, the movable contact is always in the same point in each contact, the cleaning effect generated by arc drawing is realized, the stability of contact resistance in the next contact is ensured, and the movable contact is not scattered on the carbon deposit around due to the circumferential displacement of the movable contact.
The durability is improved by 180 percent through test verification, the voltage drop is reduced by 42.8 percent after the test, and the market reject ratio is improved from eight parts per million to fifty parts per million through market verification.
One end of the movable contact is riveted and fixed by utilizing the elasticity of the movable contact arm, so that the structure that the movable contact can only move axially and can not move circumferentially is realized.
A single-contact signal switch, embodiment 2 is a normally open signal switch.
The ejector rod assembly is jacked to push the sealing sheet and the movable contact arm to make the movable contact and the fixed contact, and the switch is conducted; otherwise, the ejector rod assembly is loosened, the return spring pushes the movable contact arm, the sealing piece and the ejector rod assembly to reset, the movable contact is separated from the fixed contact, and the switch is disconnected. The fixed contact post reduced section 15 and the movable contact post reduced section 14 are used for riveting the upper cover.
Example 3 reference is made to fig. 6-10. A single-contact signal switch comprises a shell 1, a socket piece 2, a movable contact 3 and a fixed contact 4, wherein a through cavity is arranged on the shell 1, two ends of the through cavity are respectively provided with an opening, the upper section of the through cavity is a socket piece installation cavity, the socket piece 2 is installed in the socket piece installation cavity through one opening, an installation cavity is arranged in the socket piece 2, and the installation cavity is separated by an upper cover 5; the other end of the through cavity is a mandril assembly mounting cavity, a mandril assembly 9 is mounted in the mandril assembly mounting cavity through another opening, a ball 7 for driving the mandril assembly to jack up is arranged in the other opening, the socket piece mounting cavity is larger than the mandril assembly mounting cavity, a first step surface 8 is arranged between the socket piece mounting cavity and the mandril assembly mounting cavity, and a sealing sheet 6 for covering the upper end of the mandril assembly mounting cavity is arranged between the lower end of the socket piece and the first step surface; a contact mounting cavity is formed between the sealing sheet 6 and the lower end of the mounting cavity; the sealing sheet 6 is provided with an insulating top 10 corresponding to the upper end of the ejector rod assembly; a reset spring 13 is arranged between the insulating top sub 10 and the upper cover 5, the upper cover 5 is also provided with a movable contact terminal 11 and a fixed contact terminal 12, one end of the movable contact terminal 11 and one end of the fixed contact terminal 12 extend into the contact installation cavity, one end of the movable contact terminal 11 is provided with a movable contact arm 17, and the movable contact arm 17 is provided with a movable contact 3; a stationary contact seat 16 is arranged at one end of the stationary contact binding post 12, and a stationary contact 4 is arranged on the stationary contact seat 16; the movable contact 3 and the fixed contact 4 are positioned on the same vertical shaft, and the movable contact arm 17 is fixedly connected with the insulating top 10. The insulating top is a plastic insulating top.
A single-contact signal switch is characterized in that a movable contact arm comprises a horizontal section 19 and an arc-shaped section 20, a clamping groove is formed in the center of the horizontal section, a protrusion 21 is formed in the center of the upper end of an insulating top, the protrusion penetrates through the clamping groove to be clamped with the clamping groove and is sleeved outside by a reset spring, the lower end of the reset spring abuts against the movable contact arm, a movable contact vertically above a fixed contact is arranged at one end of the horizontal section, the other end of the horizontal section is connected with one section of the arc-shaped section, the other end of the arc-shaped section is connected to a movable contact binding post, a movable contact binding post reducing section 14 is arranged at the other end of the movable contact binding post, a second step surface is formed between the movable contact binding post reducing section and the movable contact binding post, the movable contact reducing binding post section penetrates through a first through hole in an upper cover and is exposed on the upper cover, and the size of the first through hole is matched with the movable contact binding post reducing section. The movable contact arm has elasticity. The movable contact arm can only elastically move up and down through the limit of the horizontal section, the cambered surface section and the movable contact wiring terminal.
A single-contact signal switch is characterized in that one end of a fixed contact binding post is arranged on a sealing sheet to keep a gap, the fixed contact base is an arc force arm, one end of the fixed contact base is connected with the fixed contact binding post, the other end of the fixed contact base is provided with a fixed contact, the fixed contact and the sealing sheet keep the gap, the fixed contact base is lower than a movable contact arm, the other end of the fixed contact binding post is provided with a fixed contact binding post reduction section 15, a third step surface is formed between the fixed contact binding post reduction section and the fixed contact binding post, the fixed contact binding post reduction section penetrates through a second through hole in an upper cover and is exposed on the upper cover, and the size of the second through hole is matched with the fixed contact binding post reduction section.
A single-contact signal switch, the outside of the ejector rod component installation cavity of a shell 1 is in a stud shape and is provided with threads, the lower end of the ejector rod component installation cavity is provided with a limiting ring 22, and a limiting ball is separated downwards; the outer side of the socket piece mounting cavity of the shell is in a nut shape.
A single-contact signal switch is characterized in that the outer side of a socket piece is cylindrical and is arranged in a socket piece mounting cavity, the outer edge of a sealing piece is abutted against the bottom surface of the socket piece mounting cavity, and sealing rings 18 are further arranged on the upper surface and the lower surface of the outer edge of the sealing piece.
A single-contact signal switch is provided, wherein a circle of semicircular bulge is arranged between the center and the edge of a sealing sheet. For stretching of the sealing plate.
The single-contact signal switch has spherical raised lower end of the insulating top.
A single-contact signal switch is provided, a clapboard is arranged between a reduced section of a fixed contact binding post and a reduced section of a movable contact binding post on the upper side of an upper cover. The corner of the first step surface is a round angle.
Compared with the existing structure, the single-contact signal switch has the advantages that firstly, the structure is simple, and the cost is reduced by 5.5%; secondly, the original bridge structure is two contact points, the bridge structure is one contact point, and the contact resistance is reduced by 50 percent; and thirdly, the movable contact piece is fixed, the circumferential displacement of the movable contact is limited, the movable contact is always in the same point in each contact, the cleaning effect generated by arc drawing is realized, the stability of contact resistance in the next contact is ensured, and the movable contact is not scattered on the carbon deposit around due to the circumferential displacement of the movable contact.
The durability is improved by 180 percent through test verification, the voltage drop is reduced by 42.8 percent after the test, and the market reject ratio is improved from eight parts per million to fifty parts per million through market verification.
One end of the movable contact is riveted and fixed by utilizing the elasticity of the movable contact arm, so that the structure that the movable contact can only move axially and can not move circumferentially is realized.
The fixed contact post reduced section 15 and the movable contact post reduced section 14 are used for riveting the upper cover.
A single-contact signal switch is disclosed, which is a normally-closed signal switch.
A single-contact signal switch is characterized in that a push rod assembly, a sealing piece and a plastic ejector pin are pushed, a movable contact arm is pushed to separate contact points, and the switch is disconnected; otherwise, the ball is released, the return spring pushes the movable contact arm back, the movable contact and the fixed contact are contacted, and the switch is conducted.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (9)
1. A single-contact signal switch comprises a shell, a socket piece, a movable contact and a fixed contact, wherein a through cavity is arranged on the shell, two ends of the through cavity are respectively provided with an opening, the upper section of the through cavity is a socket piece installation cavity, the socket piece is installed in the socket piece installation cavity through one opening, an installation cavity is arranged in the socket piece, and the installation cavity is separated by an upper cover; the other end of the through cavity is a mandril assembly mounting cavity, the socket piece mounting cavity is larger than the mandril assembly mounting cavity, a first step surface is arranged between the socket piece mounting cavity and the mandril assembly mounting cavity, and a sealing sheet for covering the upper end of the mandril assembly mounting cavity is arranged between the lower end of the socket piece and the first step surface; a contact mounting cavity is formed between the sealing sheet and the lower end of the mounting cavity; the method is characterized in that: a movable contact binding post and a fixed contact binding post are arranged in the contact mounting cavity, a movable contact arm is arranged at one end of the movable contact binding post, a movable contact is arranged on the movable contact arm, a fixed contact is arranged on the fixed contact binding post, and the ejector rod assembly drives the movable contact and the fixed contact to be closed or disconnected under the stress; a reset spring is arranged between the movable contact arm and the upper cover to drive the movable contact to reset;
one end of the movable contact terminal and one end of the static contact terminal extend into the contact mounting cavity, a movable contact arm is arranged at one end of the movable contact terminal, and a movable contact is arranged on the movable contact arm; a stationary contact is arranged at one end of the stationary contact binding post; the movable contact and the fixed contact are positioned on the same vertical shaft, the movable contact arm is provided with a driving point at the upper end of the ejector rod assembly, and a reset spring is arranged between the movable contact arm and the upper cover;
the movable contact is positioned above the driving point, a reset spring mounting groove is arranged on the movable contact arm positioned outside the movable contact, a bulge is arranged at the lower end of the upper cover, one end of the reset spring is abutted against the reset spring mounting groove, the other end of the reset spring is sleeved outside the bulge and abutted against the lower end of the upper cover, and the reset spring is sleeved outside the movable contact and the stationary contact;
a through hole is formed in the center of the protrusion, one end of the static contact binding post extending into the contact mounting cavity penetrates through the through hole, the reset spring is further sleeved outside one end of the static contact binding post penetrating through the protrusion, a static contact binding post reduced section is arranged at the other end of the static contact binding post, a third step surface is formed between the static contact binding post reduced section and the static contact binding post, and the static contact binding post reduced section is exposed on the upper cover;
the movable contact arm is vortex-shaped, a movable contact wiring terminal reduced section is arranged at the other end of the movable contact wiring terminal, a second step surface is formed between the movable contact wiring terminal reduced section and the movable contact wiring terminal, the movable contact wiring terminal reduced section penetrates through a first through hole in the upper cover and is exposed on the upper cover, and the size of the first through hole is matched with that of the movable contact wiring terminal reduced section; a return spring mounting groove is formed in the upper surface of the other end of the movable contact arm, a movable contact is arranged in the middle of the return spring mounting groove, and a driving point is arranged below the other end of the movable contact arm;
the centers of the fixed contact, the movable contact, the driving point and the ball are on the same straight line;
the outer side of the ejector rod assembly mounting cavity of the shell is in a stud shape and is provided with threads, the ejector rod assembly comprises a main body, an ejector rod spring and an ejector rod, an upper groove is formed in the upper end of the main body, the lower end of the ejector rod is inserted into the upper groove, and the ejector rod spring abuts between the outer side of the ejector rod and the bottom of the upper groove; the lower end of the main body is provided with a lower indent, the ball is arranged in the lower indent, and the inner side wall opening of the lower indent is inwards inclined to limit the ball to be separated downwards; the inner side of the ejector rod assembly mounting cavity is provided with a fourth step surface for limiting the falling of the main body, and the outer side of the main body is provided with a limiting ring corresponding to the third step surface.
2. A single-contact signal switch as claimed in claim 1, wherein: the outer side of the socket piece is cylindrical and is arranged in the socket piece mounting cavity, the outer edge of the sealing piece is abutted to the bottom surface of the socket piece mounting cavity, and the upper surface and the lower surface of the outer edge of the sealing piece are further provided with a sealing ring and a sealing piece.
3. A single-contact signal switch as claimed in claim 2, wherein: the upper end of the side wall of the socket piece installation cavity inclines inwards to limit the socket piece, and an annular bulge is arranged at the outer side of the socket piece corresponding to the inclined position of the side wall of the socket piece installation cavity.
4. A single-contact signal switch comprises a shell, a socket piece, a movable contact and a fixed contact, wherein a through cavity is arranged on the shell, two ends of the through cavity are respectively provided with an opening, the upper section of the through cavity is a socket piece installation cavity, the socket piece is installed in the socket piece installation cavity through one opening, an installation cavity is arranged in the socket piece, and the installation cavity is separated by an upper cover; the other end of the through cavity is a mandril assembly mounting cavity, the socket piece mounting cavity is larger than the mandril assembly mounting cavity, a first step surface is arranged between the socket piece mounting cavity and the mandril assembly mounting cavity, and a sealing sheet for covering the upper end of the mandril assembly mounting cavity is arranged between the lower end of the socket piece and the first step surface; a contact mounting cavity is formed between the sealing sheet and the lower end of the mounting cavity; the method is characterized in that: a movable contact binding post and a fixed contact binding post are arranged in the contact mounting cavity, a movable contact arm is arranged at one end of the movable contact binding post, a movable contact is arranged on the movable contact arm, a fixed contact is arranged on the fixed contact binding post, and the ejector rod assembly drives the movable contact and the fixed contact to be closed or disconnected under the stress; a reset spring is arranged between the movable contact arm and the upper cover to drive the movable contact to reset;
the sealing sheet is provided with an insulating top corresponding to the upper end of the top rod assembly; a reset spring is arranged between the insulating top and the upper cover, the upper cover is also provided with a movable contact terminal and a fixed contact terminal, one end of the movable contact terminal and one end of the fixed contact terminal extend into the contact mounting cavity, one end of the movable contact terminal is provided with a movable contact arm, and the movable contact arm is provided with a movable contact; a stationary contact seat is arranged at one end of the stationary contact binding post, and a stationary contact is arranged on the stationary contact seat; the movable contact and the fixed contact are positioned on the same vertical shaft, and the movable contact arm is fixedly connected with the insulating top;
the movable contact arm comprises a horizontal section and a cambered surface section, a clamping groove is formed in the center of the horizontal section, a protrusion is formed in the center of the upper end of the insulating top, the protrusion penetrates through the clamping groove to be clamped with the clamping groove and is sleeved outside by a reset spring, the lower end of the reset spring abuts against the movable contact arm, a movable contact located vertically above the stationary contact is arranged at one end of the horizontal section, the other end of the horizontal section is connected with one section of the cambered surface section, the other end of the cambered surface section is connected to a movable contact wiring terminal, a movable contact wiring terminal reducing section is arranged at the other end of the movable contact wiring terminal, a second step surface is formed between the movable contact wiring terminal reducing section and the movable contact wiring terminal, the movable contact wiring terminal reducing section penetrates through a first through hole in the upper cover and is exposed in the upper cover, and the size of the first through hole is matched with the movable contact wiring terminal reducing section;
one end of the stationary contact binding post is arranged on the sealing sheet to keep a gap with the sealing sheet, the stationary contact base is an arc force arm, one end of the stationary contact base is connected with the stationary contact binding post, the other end of the stationary contact base is provided with a stationary contact, the stationary contact and the sealing sheet keep a gap, the stationary contact base is lower than the movable contact arm, the other end of the stationary contact binding post is provided with a stationary contact binding post reduction section, a third step surface is formed between the stationary contact binding post reduction section and the stationary contact binding post, the stationary contact binding post reduction section penetrates through a second through hole on the upper cover and is exposed on the upper cover, and the size of the second through hole is matched with the stationary contact binding post reduction section.
5. The single-contact signal switch of claim 4, wherein: the outer side of a mandril assembly mounting cavity of the shell is in a stud shape and is provided with threads, the lower end of the mandril assembly mounting cavity is provided with a limiting ring, and limiting balls are downward separated; the outer side of the socket piece mounting cavity of the shell is in a nut shape.
6. The single-contact signal switch of claim 5, wherein: the outer side of the socket piece is cylindrical and is arranged in the socket piece mounting cavity, the outer edge of the sealing sheet is abutted to the bottom surface of the socket piece mounting cavity, and sealing rings are further arranged on the upper surface and the lower surface of the outer edge of the sealing sheet.
7. The single-contact signal switch of claim 6, wherein: the lower end of the insulating top is provided with a spherical bulge.
8. The single-contact signal switch according to claim 1 or 4, wherein: a clapboard is arranged between the reduced section of the fixed contact binding post and the reduced section of the movable contact binding post which are positioned on the upper side of the upper cover.
9. The single-contact signal switch according to claim 1 or 4, wherein: the corner of the first step surface is a round angle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011601537.5A CN112735886B (en) | 2020-12-30 | 2020-12-30 | Single-contact signal switch |
| PCT/CN2021/099978 WO2022142161A1 (en) | 2020-12-30 | 2021-06-15 | Single-contact signal switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011601537.5A CN112735886B (en) | 2020-12-30 | 2020-12-30 | Single-contact signal switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112735886A CN112735886A (en) | 2021-04-30 |
| CN112735886B true CN112735886B (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011601537.5A Active CN112735886B (en) | 2020-12-30 | 2020-12-30 | Single-contact signal switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112735886B (en) |
| WO (1) | WO2022142161A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735886B (en) * | 2020-12-30 | 2022-06-28 | 温州市三峻轿车配件有限公司 | Single-contact signal switch |
| CN114220685A (en) * | 2021-11-26 | 2022-03-22 | 陕西航空电气有限责任公司 | High-low gear switch of air pressure resistant structure for gearbox |
| CN114241729B (en) * | 2021-12-13 | 2023-06-20 | 中国人民解放军陆军工程大学 | Vibration impact alarm device |
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| JP2000062528A (en) * | 1998-08-21 | 2000-02-29 | Matsushita Electric Ind Co Ltd | Switch |
| JP2000195385A (en) * | 1998-12-25 | 2000-07-14 | Niles Parts Co Ltd | Structure of vehicle switch |
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| US5461208A (en) * | 1993-03-24 | 1995-10-24 | Texas Instruments Incorporated | Compact high pressure snap-acting switch |
| CN2914307Y (en) * | 2006-06-09 | 2007-06-20 | 杨振华 | Air-pressure switch |
| CN203839232U (en) * | 2014-04-14 | 2014-09-17 | 陕西法士特齿轮有限责任公司 | Pressure switch |
| CN104966631B (en) * | 2015-06-29 | 2017-09-29 | 昌辉汽车电器（黄山）股份公司 | A kind of whole-vehicle shutoff switch of resistance to high current |
| CN208712719U (en) * | 2018-08-09 | 2019-04-09 | 白城尼特固汽车部件有限公司 | A kind of warning device of nail pressing sleeve pressing machine |
| CN112735886B (en) * | 2020-12-30 | 2022-06-28 | 温州市三峻轿车配件有限公司 | Single-contact signal switch |
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2020
- 2020-12-30 CN CN202011601537.5A patent/CN112735886B/en active Active
-
2021
- 2021-06-15 WO PCT/CN2021/099978 patent/WO2022142161A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000062528A (en) * | 1998-08-21 | 2000-02-29 | Matsushita Electric Ind Co Ltd | Switch |
| JP2000195385A (en) * | 1998-12-25 | 2000-07-14 | Niles Parts Co Ltd | Structure of vehicle switch |
| CN201213104Y (en) * | 2008-07-11 | 2009-03-25 | 叶成春 | Signal switch |
| CN203325756U (en) * | 2013-08-01 | 2013-12-04 | 重庆斯凯力科技有限公司 | Automobile neutral gear prompting switch |
| CN204284423U (en) * | 2014-11-28 | 2015-04-22 | 温州市三峻轿车配件有限公司 | A kind of automobile gearbox signaling switch and positioning means integral component |
| CN105551898A (en) * | 2016-02-18 | 2016-05-04 | 常州市吉士电器有限公司 | Single-pole double-throw DC contactor |
| CN208954862U (en) * | 2018-09-19 | 2019-06-07 | 温州天球电器有限公司 | A kind of neutral switch of automobile |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112735886A (en) | 2021-04-30 |
| WO2022142161A1 (en) | 2022-07-07 |
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