CN116092857A - Clip type micro-motion switch - Google Patents

Abstract

The invention discloses a clip type micro-switch which comprises a base, a common terminal, an output terminal, a shell, a pressing die, a clamp and a spring, wherein the common terminal and the output terminal are respectively arranged at two ends of the base, the output terminal is a normally open terminal or a normally closed terminal, the shell is covered on the base, and the pressing die comprises a pressing column and a pressing block. The clip type micro-switch has fewer component parts, simple structure, realizes synchronous up-and-down sliding through double-side clamping and guiding, thereby realizing the on-off of signals, so that the signal switching is smoother, the signal conduction is more stable, simultaneously, the connection between the clamping part and the common terminal and the output terminal can be increased to be more stable by providing integrally designed convex ribs, the clip type micro-switch is connected with the pressing block by adopting the button type connection, the assembly between the clip type micro-switch and the pressing block is firm, the clamping part of the clip type micro-switch can slide up and down conveniently, and finally, the overall structure of the micro-switch is simple, the design is reasonable, and the stability is good.

Description

Clip type micro-motion switch

Technical Field

The invention relates to the technical field of switches, in particular to a clip type micro-motion switch.

Background

The micro switch is a contact mechanism for performing a switching operation with a predetermined stroke and a predetermined force, and is covered with a case, and the outside of the micro switch is provided with a driving lever.

The micro switch has various kinds, the internal structure has hundreds to thousands kinds, and the micro switch has common, small, ultra-small and the like according to volume fraction; waterproof, dustproof, explosion-proof and the like are classified according to the protective performance; the micro switch is used in the equipment with frequent circuit switching, so that the service performance of the micro switch needs to be ensured, but the stability of the conventional micro switch is insufficient, and the conventional micro switch is not smooth enough in signal switching, so that the structure of the conventional micro switch needs to be improved.

Disclosure of Invention

The invention aims to provide a clip type micro-switch which has good assembly stability and smooth signal switching.

In order to solve the technical problems, the invention can be realized by adopting the following technical scheme:

a clip type micro-switch comprising: the device comprises a base, wherein two ends of the base are respectively provided with a common terminal and an output terminal in a penetrating way, the output terminal is a normally closed terminal or a normally open terminal, and a first limit column is arranged in the middle of the base;

the shell is covered on the base and forms a containing cavity;

the pressing mechanism comprises a pressing block and a pressing column connected with one end of the pressing block, the pressing block is arranged in the accommodating cavity, the pressing column penetrates through the top of the shell and extends outwards, the other end of the pressing block is provided with a mounting groove, and the middle of the mounting groove is provided with a second limiting column;

the clamping device is arranged in the mounting groove, the middle part of the clamping device is sleeved on the second limiting column, the fixed walls at the two sides of the clamping device are respectively abutted with the side wall of the mounting groove, the two ends of the clamp are respectively provided with a clamping part, wherein the clamping part at one end clamps the common terminal, and the clamping part at the other end clamps the output terminal;

and one end of the spring is sleeved on the first limiting column and is abutted with the base, and the other end of the spring is sleeved on the second limiting column and is abutted with the clamp.

In one embodiment, two side walls of the mounting groove are respectively provided with a bayonet, and the fixing walls on two sides of the clamping ring are respectively provided with a clamping block matched with the bayonet, the clamping ring is arranged in the mounting groove, and the clamping blocks are buckled into the bayonet, so that the clamping ring is clamped in the mounting groove.

In one embodiment, the clamping part comprises two clamping plates in a clamping state, each clamping plate comprises a connecting arm and a contact arm, and two opposite convex ribs are arranged on each contact arm.

In one embodiment, the base is provided with an insulating part at one end of the output terminal, when the output terminal is a normally closed terminal, the insulating part is arranged below the normally closed terminal, the thickness of the insulating part is the same as that of the normally closed terminal, and in an initial state, the clamping parts at two ends of the clamp are respectively clamped on the normally closed terminal and the common terminal.

In one embodiment, the base is provided with an insulating part at one end of the output terminal, when the output terminal is a normally open terminal, the insulating part is arranged above the normally open terminal, the thickness of the insulating part is the same as that of the normally open terminal, and in an initial state, the clamping parts at two ends of the clamp are respectively clamped on the insulating part and the common terminal.

In one embodiment, the two contact arms are designed to form an included angle.

In one embodiment, the pressing column is further sleeved with a sealing ring, one end of the sealing ring is clamped on the pressing column, and the other end of the sealing ring is in sealing adhesion with the shell.

In one embodiment, the covering part of the shell and the base is in sealing connection through sealant.

In one embodiment, the common terminal and the output terminal are mounted on the base using an over molding process or a plug-in terminal process.

The beneficial effects of the invention are as follows: the clamp type micro-movement switch mainly comprises a base, a common terminal, an output terminal, a shell, a pressing mechanism, a clamp and a spring, wherein the clamp type micro-movement switch is few in component parts and simple in structure, and when the clamp type micro-movement switch is assembled, two ends of the clamp are respectively clamped on the common terminal and the output terminal, so that double-side clamping and guiding are realized, and the connection between the common terminal and the output terminal is more stable; in addition, the design of protruding muscle can strengthen its stability when the centre gripping with common terminal and output terminal centre gripping when the clamping part slides from top to bottom, finally, makes micro-gap switch's overall stability increase, and is more smooth and easy when the signal switches.

Drawings

FIG. 1 is an exploded view of a clip-type microswitch according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of a clip type micro-switch of the present invention;

FIG. 3 is a schematic diagram of a latch structure of an embodiment of a clip type micro-switch according to the present invention;

FIG. 4 is a schematic view of a clip structure of a clip type micro-switch according to an embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating an embodiment of a clip-type micro switch according to the present invention;

fig. 6 is a cross-sectional view of a clip-type microswitch embodiment of the invention.

As shown in the accompanying drawings:

100. a base; 110. a first limit post; 120. an insulating part;

200. a common terminal;

300. an output terminal;

400. a housing;

500. pressing the pin; 510. a pressing part; 511. a mounting groove; 512. the second limit column; 513. a bayonet; 520. pressing the column;

600. clamping the young; 610. a fixed wall; 620. a clamping part; 621. a connecting arm; 622. a contact arm; 623. convex ribs; 630. a clamping block;

700. a spring;

800. and (3) sealing rings.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Embodiment one:

referring to fig. 1 to 4, a clip type micro-switch includes: the base 100 is provided with a common terminal 200 and an output terminal 300 respectively in a penetrating way at two ends of the base 100, wherein the output terminal 300 is a normally open terminal or a normally open terminal, and a first limit column 110 is arranged in the middle of the base 100;

a housing 400, wherein the housing 400 covers the base 200 and forms a containing cavity;

the pressing device comprises a pressing device 500, wherein the pressing device 500 comprises a pressing block 510 and a pressing column 520 connected with one end of the pressing block 510, the pressing block 510 is arranged in a containing cavity, the pressing column 520 penetrates through the top of the shell 400 and extends outwards, the other end of the pressing block 510 is provided with a mounting groove 511, and the middle part of the mounting groove 511 is provided with a second limiting column 512;

the clamping device 600 is arranged in the mounting groove 511, the middle part of the clamping device 600 is sleeved on the second limiting column 512, the fixed walls 610 at two sides of the clamping device 600 are respectively abutted against the side walls of the mounting groove 511, the two ends of the clamping device 600 are respectively provided with a clamping part 620, the clamping part 620 at one end clamps the common terminal 200, and the clamping part 620 at the other end clamps the output terminal 300;

the spring 700 is disposed in the accommodating cavity, one end of the spring 700 is sleeved on the first limiting post 110 to abut against the base 100, and the other end is sleeved on the second limiting post 512 to abut against the clamp 600.

Specifically, in this embodiment, the micro switch mainly comprises a base 100, a common terminal 200, an output terminal 300, a housing 400, a pressing block 500, a clamp 600 and a spring 700, which have few components, when assembling, the common terminal 200 and the output terminal 300 are respectively disposed at two ends of the base 100, the two ends of the common terminal 200 and the output terminal 300 respectively extend outwards, the housing 400 is covered on the base 100 to form a containing cavity, the pressing block 510 of the pressing block 500 is disposed in the containing cavity, the pressing column 520 penetrates the top of the housing 400 to extend outwards, the clamp 600 is disposed at the pressing block 510, the clamping portions 620 at two ends respectively clamp the common terminal 200 and the output terminal 300, and the two ends of the spring 700 are respectively sleeved on the first limiting post 110 and the second limiting post 512 and are abutted to the middle parts of the base 100 and the clamp 600, wherein the first limiting post 110 and the second limiting post 512 can play a limiting role on the spring 700 to prevent the spring 700 from shifting condition when extruding or resetting, and the second limiting post 512 can also perform a limiting function on the clamp 600, and the clamp 600 is convenient to assemble, and the clamp 600 is reasonably connected.

In addition, when the clip 600 is assembled into the mounting groove 511 of the pressing block 510, since the fixing walls 610 at both sides of the clip 600 are abutted against the side walls of the mounting groove 511, the lateral expansion deformation of the clip 600 can be effectively prevented by the mutual abutment restriction therebetween, and the clamping force of the clip 600 can be controlled, so that the connection between the clip 600 and the common terminal 200 and the output terminal 300 is more stable.

In this embodiment, the output terminal 300 is a normally closed terminal, in order to switch signals, the base 100 is further provided with an insulating portion 120, the insulating portion 120 is disposed below the output terminal 300 (normally closed terminal), the thickness of the insulating portion 120 is the same as that of the normally closed terminal, when the micro switch is assembled, the clamping portions 620 at two ends of the clamp 600 are respectively clamped between the normally closed terminal and the common terminal 200, if the signals need to be switched, the clamp 500 can be pressed down, the clamp 600 can be pressed down by the clamp 500, so that the clamping portions 620 at two ends slide down, when the clamping portions 620 clamped at the normally closed terminal slide down to the insulating portion 120, the signals are cut off, and after the clamp 500 is released, the clamp 500 is reset by the elastic force of the spring 700, so that the clamp 600 is reset upwards, and the clamping portions 620 are clamped between the normally closed terminal and the common terminal 200 again, so that the signals are communicated again, finally, the signals are switched on and off by adopting double-side clamping and synchronous operation, so that the signals are more stable when being switched on.

Referring to fig. 3 and 4, in order to implement the installation of the clamp 600, an installation groove 511 is formed at the bottom of the pressing block 510, bayonets 513 are formed at two side walls of the installation groove 511, and clamping blocks 630 adapted to the bayonets 613 are respectively formed on the fixing walls 610 at two sides of the clamp 600, wherein the bottom ends of the clamping blocks 630 are inclined and opened to the outside of the fixing walls 610, when the clamp 600 is assembled, the clamp 600 is placed in the installation groove 511, the middle part of the clamp 600 is sleeved on the second limiting column 512 to limit the clamp, the clamping blocks 630 inclined and opened to the outside are buckled in the bayonets 513, the bayonets 513 are buckled through the opened bottom ends, so that the clamp 600 is clamped in the installation groove 511, and finally, the assembly between the clamp 600 and the pressing block 510 is stabilized through the clamping blocks 630 and the bayonets 513, and simultaneously, the clamping part 620 of the clamp 600 is also stabilized and smooth when the common terminal 200 and the normally closed terminal are clamped.

Referring to fig. 4, in order to enable the clamping portion 620 to clamp the common terminal 200 and the output terminal 300, the clamping portion 620 in this embodiment includes two clamping plates in a clamping state, and the two clamping plates include a connecting arm 621 and a contact arm 622 respectively, the two contact arms 622 are designed to form an included angle, and opposite ribs 623 are disposed on the two contact arms 622, and when the clamping portion 620 clamps the common terminal 200 and the output terminal 300, the ribs 623 on the contact arms 622 contact the common terminal 200 and the output terminal 300, and by the design of the ribs 623, the contact area between the clamp 600 and the common terminal 200 and the output terminal 300 can be increased, and the ribs 623 and the contact arms 622 are integrally designed, so that the connection between the clamp 600 and the common terminal 200 and the output terminal 300 can be more stable when sliding up and down.

Referring to fig. 4, in this embodiment, since the clamping portion 620 needs to slide up and down when the signal is switched, in order to prevent the clamping portion 620 from being damaged or deformed when the signal slides up and down, the bottoms of the two contact arms 622 may be provided with outwards-opened inclined arms, so that the inclined arms are horn-shaped, and the clamping portion 620 can slide on the common terminal 200 and the output terminal 300 without blocking when the horn-shaped inclined arms slide, so that the clamping portion 620 slides smoothly, and damage or deformation of the clamping portion 620 is avoided.

Referring to fig. 1 or 2, because the micro switch is widely used, it is necessary to perform dust-proof and waterproof treatment on the micro switch, therefore, a sealing ring 800 is further sleeved on the pressing post 620, one end of the sealing ring 800 is clamped on the pressing post 620, the other end is sealed and adhered to the housing 400, meanwhile, the covering position of the housing 400 and the base 100 is sealed and connected by sealant, and the common terminal 200 and the output terminal 300 are mounted on the base 100 by adopting a plastic-coated process or a plug-in terminal process, finally, the sealing of the accommodating cavity is realized, the dust-proof and waterproof function is realized, and oxidation of the inner clamp 600, the spring 700, the common terminal 200 and the output terminal 300 is avoided, thereby prolonging the service life of the micro switch.

Embodiment two:

the clip type micro-switch in this embodiment is basically the same as the first embodiment, and the main difference is that: the output terminal 300 is a normally open terminal.

Referring to fig. 5 and 6, when the output terminal 300 is a normally open terminal, the insulating portion 120 provided on the base 100 is disposed above the output terminal 300 (normally open terminal), and the thickness of the insulating portion 120 is the same as that of the normally open terminal, when the assembly is performed, the clamping portions 620 at both ends of the clamp 600 are respectively clamped to the insulating portion 120 and the common terminal 200, when the signal needs to be switched, the clamp 600 is pressed by the press portion 500, the clamp portion 620 slides down on the insulating portion 120 and the common terminal 200 when the clamp portion 600 is pressed down, and one end clamped to the insulating portion 120 slides down to the normally open terminal to clamp the normally open terminal, so as to realize the conduction of the signal, and when the press portion 500 is released, the clamp portion 620 resets under the elastic force of the spring 700, so that the clamp portion 620 slides up and resets, and clamps again to the insulating portion 120 and the common terminal 200, so as to realize the cutting off of the signal.

To sum up, through the clamping direction of two side clamping parts 620, realize synchronous vertical sliding to this realization is switched on and is cut off the signal, thereby make the signal switch more smooth and the signal switch more stable, simultaneously, give the protruding muscle 623 of an organic whole design again, can increase the connection between clamping part 620 and common terminal 200 and output terminal 300 equally, make its connection more stable, and adopt the button to connect between clamp 600 and the pressing block 510, make the equipment between clamp 600 and the pressing block 510 firm, make things convenient for clamp 600's clamping part 620 to slide from top to bottom, finally, make micro-gap switch's overall structure simple, reasonable in design, stability is good.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. Equivalent embodiments of the present invention will be apparent to those skilled in the art having the benefit of the teachings disclosed herein; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.

Claims (9)

1. A clip type micro-switch, comprising:

the device comprises a base, wherein two ends of the base are respectively provided with a common terminal and an output terminal in a penetrating way, the output terminal is a normally closed terminal or a normally open terminal, and a first limit column is arranged in the middle of the base;

the shell is covered on the base and forms a containing cavity;

the pressing mechanism comprises a pressing block and a pressing column connected with one end of the pressing block, the pressing block is arranged in the accommodating cavity, the pressing column penetrates through the top of the shell and extends outwards, the other end of the pressing block is provided with a mounting groove, and the middle of the mounting groove is provided with a second limiting column;

the clamping device comprises a mounting groove, a second limiting column, a clamping part, a first limiting column, a second limiting column, a first limiting column and a second limiting column, wherein the fixing walls at the two sides of the clamping part are respectively abutted with the side walls of the mounting groove, the two ends of the clamping part are respectively provided with clamping parts, the clamping parts at one end are clamped at the common terminal, and the clamping parts at the other end are clamped at the output terminal;

and one end of the spring is sleeved on the first limiting column and is abutted with the base, and the other end of the spring is sleeved on the second limiting column and is abutted with the clamp.

2. The clip-type micro-switch of claim 1, wherein: the two side walls of the mounting groove are respectively provided with a bayonet, the fixing walls on the two sides of the clamp are respectively provided with a clamping block matched with the bayonet, the clamp is arranged in the mounting groove, and the clamping blocks are buckled into the bayonet, so that the clamp is clamped in the mounting groove.

3. The clip-type micro-switch of claim 2, wherein: the clamping part comprises two clamping plates in a clamping state, each clamping plate comprises a connecting arm and a contact arm, and two opposite convex ribs are arranged on each contact arm.

4. A clip-type micro-switch as claimed in claim 3, wherein: the base is equipped with output terminal's one end still is provided with insulating part, and when output terminal was normally closed terminal, insulating part was located normally closed terminal's below, and insulating part thickness is the same with normally closed terminal thickness, and initial state presss from both sides the clamping part at young both ends centre gripping respectively in normally closed terminal and common terminal.

5. A clip-type micro-switch as claimed in claim 3, wherein: the base is equipped with output terminal's one end still is provided with insulating part, and when output terminal was normally open the terminal, insulating part was located normally open the top of terminal, and insulating part thickness is the same with normally open the terminal thickness, and initial state presss from both sides the clamping part at young both ends centre gripping respectively in insulating part and common terminal.

6. A clip-type micro-switch as claimed in claim 3, wherein: the two contact arms are designed to be included angles.

7. The clip-type micro-switch of claim 1, wherein: the pressing column is also sleeved with a sealing ring, one end of the sealing ring is clamped on the pressing column, and the other end of the sealing ring is bonded with the shell in a sealing way.

8. The clip-type micro-switch of claim 1, wherein: the cover joint of the shell and the base is in sealing connection through sealant.

9. The clip-type micro-switch of claim 1, wherein: the common terminal and the output terminal are mounted on the base by adopting a plastic coating process or a terminal inserting process.

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