CN217468243U - Micro-gap switch that possesses normally open normal close magnetic blow function - Google Patents
Micro-gap switch that possesses normally open normal close magnetic blow function Download PDFInfo
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- CN217468243U CN217468243U CN202221642938.XU CN202221642938U CN217468243U CN 217468243 U CN217468243 U CN 217468243U CN 202221642938 U CN202221642938 U CN 202221642938U CN 217468243 U CN217468243 U CN 217468243U
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- spring
- wheel frame
- guide wheel
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Abstract
A microswitch with a normally open and normally closed magnetic blowing function belongs to the technical field of microswitches and particularly relates to a microswitch with a normally open and normally closed magnetic blowing function. The utility model provides a micro-gap switch who possesses normally open normal close magnetism and blow the function. The utility model comprises a base plate component (b), and is characterized in that the front end and the rear end of the base plate component (b) are both provided with a cover plate (c), and the cover plate (c) is provided with a magnetic sheet (d); the base plate assembly comprises a shell (8), the shell (8) is of a hollow structure, a guide rod (7) is arranged at the hollow part, a guide wheel frame assembly through hole (12) is formed in the upper end of the shell (8), the guide wheel frame assembly (1) penetrates through the guide wheel frame assembly through hole (12) in the upper end of the base plate assembly (b), the upper end of the guide wheel frame assembly (1) is arranged above the shell (8), and the lower part of the guide wheel frame assembly (1) is arranged at the upper end of the hollow part; a spring placing hole (13) with a vertical rectangular cross section is arranged on the guide wheel frame component (1).
Description
Technical Field
The utility model belongs to the technical field of micro-gap switch, especially, relate to a micro-gap switch who possesses normally open normal close magnetism and blow function.
Background
The microswitch is a switch having a minute contact interval and a snap action mechanism, which performs a switching action with a predetermined stroke and a predetermined force, covered with a case, and having a driving lever outside, and is called a microswitch or a snap action switch because the contact pitch of the switch is small.
The microswitch is used for automatic control, safety protection and the like in equipment needing frequent circuit switching, is widely applied to electronic equipment, instruments and meters, mines, power systems, household appliances, electrical equipment, and military fields such as aerospace, aviation, ships, missiles, tanks and the like, is widely applied to the fields, and has irreplaceable effects although the microswitch is small.
At present, most micro switches on the market generally only have 1-open and 1-close functions. When a plurality of circuits are needed for control, the control can be realized only by overlapping and combining a plurality of micro switches, and the problems of installation convenience and synchronization precision exist. And the existing microswitch generally has the defects of small capacity, low on-off capability and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses just to above-mentioned problem, provide a micro-gap switch who possesses normally open normally closed magnetism and blow the function.
In order to achieve the purpose, the utility model adopts the following technical scheme that the utility model comprises a base plate component (b), and is characterized in that the front end and the rear end of the base plate component (b) are both provided with a cover plate (c), and the cover plate (c) is provided with a magnetic sheet (d);
the base plate component comprises a shell (8), the shell (8) is of a hollow structure, a guide rod (7) is arranged at the hollow part, a guide wheel frame component through hole (12) is formed in the upper end of the shell (8), the guide wheel frame component (1) penetrates through the guide wheel frame component through hole (12) in the upper end of the base plate component (b), the upper end of the guide wheel frame component (1) is arranged above the shell (8), and the lower part of the guide wheel frame component (1) is arranged at the upper end of the hollow part; a spring placing hole (13) with a vertical rectangular cross section is formed in the guide wheel frame assembly (1), a supporting sheet (14) penetrates through a supporting sheet through hole (15) and the spring placing hole (13) in the base plate assembly (b), and a return spring (2) is arranged between the upper end face of the supporting sheet (14) and the upper end face of the spring placing hole (13);
the lower end of the guide wheel frame assembly (1) is provided with an action elastic sheet (3), the lower end of the action elastic sheet (3) penetrates through a through hole in the upper end of a guide rod (7), a movable contact piece (5) is arranged on the guide rod (7), a fixed contact piece (4) is arranged on a shell (8) corresponding to the movable contact piece (5), and the outer end of the fixed contact piece (4) is a wiring terminal (e);
the movable contact pieces (5) are multiple, and one side of each movable contact piece (5) is correspondingly provided with two fixed contact pieces (4) which are arranged up and down.
As a preferable scheme, the guide rod (7) of the utility model is provided with a movable contact spring (5) placing hole, the upper end and the lower end of the movable contact spring (5) are both provided with a movable contact spring floating spring (6), the upper end of the movable contact spring floating spring (6) at the upper end is propped against the upper wall of the movable contact spring (5) placing hole, and the lower end of the movable contact spring floating spring (6) at the upper end is propped against the middle part of the upper end of the movable contact spring (5); the lower end of the movable contact piece floating spring (6) at the lower end is propped against the lower wall of the movable contact piece (5) placing hole, and the upper end of the movable contact piece floating spring (6) at the lower end is propped against the middle part of the lower end of the movable contact piece (5).
As another preferred scheme, the movable contact springs (5) of the utility model are eight in total, are arranged on the guide rod (7) in front and back two rows, and are uniformly arranged four from top to bottom in each row; one side of each movable contact piece (5) is correspondingly provided with two fixed contact pieces (4) which are arranged up and down.
As another preferred scheme, the utility model discloses the both sides of movable contact spring (5) are provided with spacing lug (9) corresponding to movable contact spring (5) place hole both sides.
Secondly, be provided with on casing (8) and decide contact (4) standing groove (10) corresponding to decide contact (4), be provided with spacing groove (11) corresponding to decide contact (4) standing groove (10) on deciding contact (4).
In addition, the action shell fragment (3) is for falling a few font, and action shell fragment (3) both sides limit is the bending limit.
The utility model has the advantages of.
The utility model discloses be provided with the magnetic sheet on the apron, possess "magnetic blowout" function, can double the on-off capacity, the ability of breaking and improve electric life-span of hoisting switch, especially the effect is especially obvious under abominable service condition such as direct current, perceptual load.
The utility model discloses a quick-action structure that guide wheel carrier subassembly and action shell fragment and guide arm constitute can realize the switch-on in the twinkling of an eye and divide absolutely, the at utmost has increased the disconnected capacity of breaking of switch.
The utility model has a plurality of movable contact pieces, one side of each movable contact piece is correspondingly provided with two fixed contact pieces which are arranged up and down; has the function of multi-opening and multi-closing.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description. The scope of protection of the present invention is not limited to the following description.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an external view of the present invention.
Fig. 3 is an exploded view of the present invention. The idler frame assembly (1), i.e. the circled portion of fig. 3, is a unitary assembly, with the wheel and axle removable.
Detailed Description
As shown in the figure, the utility model discloses a base plate subassembly (b), base plate subassembly (b) front end and rear end all are provided with apron (c), are provided with magnetic sheet (d) on apron (c) (are provided with magnetic sheet (d) mounting groove on apron (c), impress magnetic sheet (d) interference in the mounting groove.
The base plate component comprises a shell (8), the shell (8) is of a hollow structure, a guide rod (7) is arranged at the hollow part, a guide wheel frame component through hole (12) is formed in the upper end of the shell (8), the guide wheel frame component (1) penetrates through the guide wheel frame component through hole (12) in the upper end of the base plate component (b), the upper end of the guide wheel frame component (1) is arranged above the shell (8), and the lower part of the guide wheel frame component (1) is arranged at the upper end of the hollow part; the guide wheel frame assembly (1) is provided with a spring placing hole (13) with a vertical rectangular cross section, a supporting sheet (14) penetrates through a supporting sheet through hole (15) and the spring placing hole (13) in the base plate assembly (b), and a return spring (2) is arranged between the upper end face of the supporting sheet (14) and the upper end face of the spring placing hole (13).
An action elastic sheet (3) is arranged at the lower end of the guide wheel frame assembly (1), the lower end of the action elastic sheet (3) penetrates through a through hole at the upper end of a guide rod (7), a movable contact piece (5) is arranged on the guide rod (7), a fixed contact piece (4) is arranged on a shell (8) corresponding to the movable contact piece (5), and a wiring terminal (e) is arranged at the outer end of the fixed contact piece (4);
a moving contact piece (5) placing hole is formed in the guide rod (7), moving contact piece floating springs (6) are arranged at the upper end and the lower end of the moving contact piece (5), the upper end of the moving contact piece floating spring (6) at the upper end is abutted against the upper wall of the moving contact piece (5) placing hole, and the lower end of the moving contact piece floating spring (6) at the upper end is abutted against the middle part of the upper end of the moving contact piece (5); the lower end of the movable contact piece floating spring (6) at the lower end is propped against the lower wall of the movable contact piece (5) placing hole, and the upper end of the movable contact piece floating spring (6) at the lower end is propped against the middle part of the lower end of the movable contact piece (5). The compressibility of the floating spring (6) of the movable contact piece ensures that each pair of contacts can be reliably contacted and maintain enough contact pressure.
The movable contact pieces (5) are eight in number, are arranged on the guide rod (7) in front and back two rows, and are uniformly distributed in four rows from top to bottom; one side of each movable contact piece (5) is correspondingly provided with two fixed contact pieces (4) which are arranged up and down. The system has 8 normally-open and 8 normally-closed functions, 16 switch loops are constructed, 8 sets of systems keep a normally-closed state in a free state, and the other 8 sets of systems keep a normally-open state. When the switch is pressed, the states of the two systems are changed relatively, namely the normally closed state is changed into the normally open state, the normally open state is changed into the normally closed state, the synchronization precision is high, and the action response speed is high.
The utility model discloses a two arrangement methods around, can hold more contacts, only increase the thickness of switch, do not have the influence to the length and the width of switch, further compressed the installation volume of switch.
The utility model discloses two are arranged on guide arm (7) around movable contact spring (5) divide, and all movable contact springs (5) are whole to be integrated in a guide arm (7), and when the switch action, can drive all movable contact springs (5) and corresponding fixed contact spring (4) contact at the same time, keep higher synchronous precision.
The utility model discloses with binding post design in both sides to adopt grafting binding post 16, the wiring is convenient and firm reliable, difficult pine takes off.
The position of the magnetic sheet (d) is arranged corresponding to the contact position of the fixed contact sheet (4) and the movable contact sheet (5). The micro-switch shell is provided with large magnetic force magnetic sheets in the front and at the back near the contact position, and a strong magnetic field can be generated in the contact area. When micro-gap switch connects the electrical apparatus load and carries out on-off control's process production electric arc, powerful magnetic field can "blow out" the electric arc in the twinkling of an eye and realize the magnetism function of blowing, consequently the utility model discloses a micro-gap switch possesses higher breaking capacity and electric life-span.
And two sides of the movable contact piece (5) are provided with limiting lugs (9) corresponding to two sides of the placing hole of the movable contact piece (5).
The shell (8) is provided with a fixed contact piece (4) placing groove (10) corresponding to the fixed contact piece (4), and the fixed contact piece (4) is provided with a limiting groove (11) corresponding to the fixed contact piece (4) placing groove (10).
The action elastic sheet (3) is inverted-.
The utility model discloses each part all cooperates in the base plate subassembly, links together through inserting the complex mode.
The operation of the present invention will be described with reference to the accompanying drawings.
Through pressing idler frame subassembly (1), reset spring (2), action shell fragment (3) produce elastic deformation and storage energy in the in-process of pressure-actuated, store the maximum energy after the dead point is reached in the deformation, surpass the dead point after continuing to press-actuated, the elasticity of action shell fragment (3) releases in the twinkling of an eye, drives movable contact (5) through guide arm (7) and makes progress fast motion, and movable contact (5) contact with fixed contact (4) in the twinkling of an eye, constitutes the return circuit. The movable contact piece floating spring (6) is used for eliminating errors and providing enough contact pressure to ensure that all the movable contact pieces are reliably contacted with the fixed contact pieces;
after the pressing is cancelled, the microswitch pushes the guide wheel frame component (1) through the reset spring (2) to enable the action elastic sheet (3) to generate elastic deformation and store energy, when the deformation reaches a dead point, the maximum energy is stored, the deformation exceeds the dead point after being continuously pushed, the elastic force of the action elastic sheet (3) is released instantly, the guide rod (7) drives the movable contact piece (5) to rapidly act downwards, and the movable contact piece (5) is instantly contacted with the fixed contact piece (4) to form a loop. And the movable contact spring (6) is used for eliminating errors and providing enough contact pressure to ensure that all the movable contacts are reliably contacted with the fixed contacts.
It should be understood that the above detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as satisfy the operation needs, all be in the protection scope of the utility model.
Claims (6)
1. A microswitch with normally open and normally closed magnetic blowing functions comprises a substrate assembly (b), and is characterized in that cover plates (c) are arranged at the front end and the rear end of the substrate assembly (b), and magnetic sheets (d) are arranged on the cover plates (c);
the base plate assembly comprises a shell (8), the shell (8) is of a hollow structure, a guide rod (7) is arranged at the hollow part, a guide wheel frame assembly through hole (12) is formed in the upper end of the shell (8), the guide wheel frame assembly (1) penetrates through the guide wheel frame assembly through hole (12) in the upper end of the base plate assembly (b), the upper end of the guide wheel frame assembly (1) is arranged above the shell (8), and the lower part of the guide wheel frame assembly (1) is arranged at the upper end of the hollow part; a spring placing hole (13) with a vertical rectangular cross section is formed in the guide wheel frame assembly (1), a supporting sheet (14) penetrates through a supporting sheet through hole (15) and the spring placing hole (13) in the base plate assembly (b), and a return spring (2) is arranged between the upper end face of the supporting sheet (14) and the upper end face of the spring placing hole (13);
an action elastic sheet (3) is arranged at the lower end of the guide wheel frame assembly (1), the lower end of the action elastic sheet (3) penetrates through a through hole at the upper end of a guide rod (7), a movable contact piece (5) is arranged on the guide rod (7), a fixed contact piece (4) is arranged on a shell (8) corresponding to the movable contact piece (5), and a wiring terminal (e) is arranged at the outer end of the fixed contact piece (4);
the movable contact pieces (5) are multiple, and one side of each movable contact piece (5) is correspondingly provided with two fixed contact pieces (4) which are arranged up and down.
2. The microswitch with the normally-open and normally-closed magnetic blowing function according to claim 1 is characterized in that a movable contact spring (5) placing hole is formed in the guide rod (7), movable contact spring floating springs (6) are respectively arranged at the upper end and the lower end of the movable contact spring (5), the upper end of the movable contact spring floating spring (6) at the upper end is abutted against the upper wall of the movable contact spring (5) placing hole, and the lower end of the movable contact spring floating spring (6) at the upper end is abutted against the middle part of the upper end of the movable contact spring (5); the lower end of the movable contact piece floating spring (6) at the lower end is propped against the lower wall of the movable contact piece (5) placing hole, and the upper end of the movable contact piece floating spring (6) at the lower end is propped against the middle part of the lower end of the movable contact piece (5).
3. The microswitch with the normally open and normally closed magnetic blowing function according to claim 1, wherein the moving contact pieces (5) are eight in number, are arranged on the guide rod (7) in front and back two rows, and are uniformly distributed from top to bottom in four rows; one side of each movable contact piece (5) is correspondingly provided with two fixed contact pieces (4) which are arranged up and down.
4. The microswitch with the normally open and normally closed magnetic blow function according to claim 1, characterized in that the two sides of the movable contact piece (5) are provided with limit lugs (9) corresponding to the two sides of the movable contact piece (5) placing hole.
5. The microswitch with the normally open and normally closed magnetic blow function according to claim 1, wherein the housing (8) is provided with a fixed contact piece (4) placing groove (10) corresponding to the fixed contact piece (4), and the fixed contact piece (4) is provided with a limiting groove (11) corresponding to the fixed contact piece (4) placing groove (10).
6. The microswitch with the normally open and normally closed magnetic blowing function according to claim 1, wherein the action elastic sheet (3) is in an inverted T shape, and two side edges of the action elastic sheet (3) are bent edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221642938.XU CN217468243U (en) | 2022-06-29 | 2022-06-29 | Micro-gap switch that possesses normally open normal close magnetic blow function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221642938.XU CN217468243U (en) | 2022-06-29 | 2022-06-29 | Micro-gap switch that possesses normally open normal close magnetic blow function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217468243U true CN217468243U (en) | 2022-09-20 |
Family
ID=83238982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221642938.XU Active CN217468243U (en) | 2022-06-29 | 2022-06-29 | Micro-gap switch that possesses normally open normal close magnetic blow function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217468243U (en) |
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2022
- 2022-06-29 CN CN202221642938.XU patent/CN217468243U/en active Active
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