CN216597337U - Clamp type microswitch - Google Patents

Abstract

The utility model discloses a clamp type microswitch which comprises a base, a common terminal, an output terminal, a shell, a pressing device, 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 covers the base, and the pressing device comprises a pressing column and a pressing block. The clamp type microswitch provided by the utility model has few components and a simple structure, realizes synchronous up-and-down sliding through bilateral clamping and guiding, and realizes signal conduction and cut-off, so that signal switching is smoother, signal conduction is more stable, meanwhile, the connection between the clamping part and the common terminal and the output terminal can be increased by the convex rib designed for an integrated body, the connection is more stable, the clamping part and the pressing block are connected in a buckling manner, the assembly between the clamping part and the pressing block is firm, the clamping part of the clamping part can conveniently slide up and down, and finally, the microswitch has a simple integral structure, a reasonable design and good stability.

Description

Clamp type microswitch

Technical Field

The utility model relates to the technical field of switches, in particular to a clamp type microswitch.

Background

A microswitch is a contact mechanism that performs a switching operation with a predetermined stroke and a predetermined force, and is a switch in which a housing covers the microswitch and a drive lever is provided outside the microswitch.

The micro switches are various in types, hundreds of internal structures are provided, and the micro switches are of a common type, a small type, a subminiature type and the like according to the volume; waterproof type, dustproof type, explosion-proof type and the like are classified according to the protective performance; the microswitch is used in equipment with frequently switched circuits, so that the usability of the microswitch needs to be ensured, but the conventional microswitch has insufficient stability and is not smooth enough in signal switching, and therefore, the structure of the conventional microswitch needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clip type microswitch which has good assembly stability and smooth signal switching.

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

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

the shell covers the base and forms an accommodating cavity;

the pressing core 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, an installation groove is formed in the other end of the pressing block, and a second limiting column is arranged in the middle of the installation groove;

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

and the spring is arranged in the accommodating cavity, one end of the spring is sleeved on the first limiting column and abutted against the base, and the other end of the spring is sleeved on the second limiting column and abutted against the clamping ring.

In one embodiment, the two side walls of the mounting groove are respectively provided with a bayonet, the fixed walls at the two sides of the clip are respectively provided with a clamping block matched with the bayonet, the clip is arranged in the mounting groove, and the clamping block is buckled into the bayonet so that the clip is arranged 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 the two contact arms are provided with opposite convex ribs.

In one embodiment, the end of the base, where the output terminal is provided, is further provided with an insulating portion, when the output terminal is a normally closed terminal, the insulating portion is disposed below the normally closed terminal, and the thickness of the insulating portion is the same as that of the normally closed terminal, and in an initial state, the clamping portions at the two ends of the clamp are respectively clamped between the normally closed terminal and the common terminal.

In one embodiment, the base is provided with an output terminal, and the output terminal is a normally open terminal, the output terminal is arranged above the normally open terminal, the thickness of the output terminal is equal to that of the normally open terminal, and in an initial state, the clamping parts at the two ends of the clamp are respectively clamped between the output terminal and the common terminal.

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

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

In one embodiment, the housing and the base are hermetically connected at the covered position through a sealant.

In one embodiment, the common terminal and the output terminal are mounted on the base by adopting an over-mold process or a terminal-inserting process.

The utility model has the beneficial effects that: the utility model relates to a clip type microswitch, which mainly comprises a base, a common terminal, an output terminal, a shell, a pressing part, a clip and a spring, wherein the clip type microswitch has few components and simple structure; in addition, the design of the convex rib can enhance the stability when the clamping part slides up and down and clamps the clamping part with the common terminal and the output terminal, and finally, the overall stability of the micro switch is increased, and the signal switching is smoother.

Drawings

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

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

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

FIG. 4 is a schematic view of a clip structure of the clip-type microswitch according to the embodiment of the utility model;

FIG. 5 is a schematic exploded view of an embodiment of the clip-type microswitch of the present invention;

FIG. 6 is a cross-sectional view of a clip type microswitch according to an embodiment of the present invention.

As shown in the attached drawings:

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

200. a common terminal;

300. an output terminal;

400. a housing;

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

600. clamping the young; 610. a fixed wall; 620. a clamping portion; 621. a connecting arm; 622. a contact arm; 623. a rib is protruded; 630. a clamping block;

700. a spring;

800. and (5) sealing rings.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured 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 as used herein are for descriptive 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 utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The first embodiment is as follows:

referring to fig. 1 to 4, a clip type microswitch includes: the structure comprises a base 100, a common terminal 200 and an output terminal 300 respectively arranged at two ends of the base 100 in a penetrating manner, wherein the output terminal 300 is a normally open terminal or a normally open terminal, and a first limiting 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 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 the accommodating cavity, the pressing column 520 penetrates through the top of the shell 400 and extends outwards, an installation groove 511 is formed in the other end of the pressing block 510, and a second limiting column 512 is arranged in the middle of the installation groove 511;

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

a spring 700, the spring 700 is disposed in the accommodating cavity, one end of the spring is sleeved on the first position-limiting column 110 and is abutted against the base 100, and the other end of the spring is sleeved on the second position-limiting column 512 and is abutted against the clip 600.

Specifically, in the present embodiment, the micro switch mainly includes a base 100, a common terminal 200, an output terminal 300, a housing 400, a pressing part 500, a clip 600 and a spring 700, and the number of the components is small, when the micro switch is assembled, the common terminal 200 and the output terminal 300 are respectively disposed at two ends of the base 100, and 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 receiving cavity, the pressing block 510 of the pressing part 500 is disposed in the receiving cavity, the pressing column 520 penetrates through the top of the housing 400 to extend outwards, the clip 600 is located at the pressing block 510, the clamping parts 620 at two ends respectively clamp the common terminal 200 and the output terminal 300, two ends of the spring 700 are respectively sleeved on the first limiting column 110 and the second limiting column 512 and abut against the middle parts of the base 100 and the clip 600, wherein the first limiting column 110 and the second limiting column 512 can limit the spring 700, prevent it when extrusion or reseing, the skew condition appears, and the spacing post 512 of second still can carry on spacingly to pressing from both sides young 600, conveniently assembles young 600 of pressing from both sides, finally, accomplishes the equipment to micro-gap switch, and the simple structure after the equipment to make the connection between each part reasonable.

In addition, after the clip 600 is assembled in the mounting groove 511 of the pressing block 510, since the fixing walls 610 of both sides of the clip 600 abut against the side wall of the mounting groove 511, the side surfaces of the clip 600 can be effectively prevented from being expanded and deformed by the mutual abutting restriction between the two, and the clamping force of the clip 600 can be controlled, thereby making the connection of the clip 600 with the common terminal 200 and the output terminal 300 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 part 120, the insulating part 120 is arranged below the output terminal 300 (normally closed terminal), and the thickness of the insulating part 120 is the same as that of the normally closed terminal, after the micro switch is assembled, the clamping parts 620 at both ends of the clip 600 are clamped between the normally closed terminal and the common terminal 200 respectively, if necessary, the signal is switched, the clip 500 can be pressed to press the clip 600 down, so that the clamping parts 620 at both ends slide down, when the clamping part 620 clamped at the normally closed terminal slides down to the insulating part 120, the signal is cut off, after the pressing clip 500 is released, the pressing clip 500 is reset by the elastic force of the spring 700 to reset the clip 600 upwards, and the clamping parts 620 are clamped between the normally closed terminal and the common terminal 200 again, so that the signals are communicated again, finally, the signal switching device realizes the switching on and off of signals, and due to the adoption of bilateral clamping and synchronous operation, the signals are more stable when being switched on, and the signal switching is smoother.

Referring to fig. 3 and 4, in order to implement the installation of the clip 600, a mounting groove 511 is formed at the bottom of the pressing block 510, bayonets 513 are respectively formed on two side walls of the mounting groove 511, meanwhile, fixing walls 610 on two sides of the clip 600 are respectively provided with a clip block 630 adapted to the bayonets 613, wherein the bottom end of the clip block 630 is inclined and expanded outward from the fixing walls 610, when the clip 600 is assembled, the clip 600 is placed in the mounting groove 511, the middle portion thereof is sleeved on the second limiting post 512 for limiting, the clip block 630 inclined and expanded outward is buckled into the bayonet 513, and the opened bottom end thereof is buckled into the bayonet 513, so that the clip 600 is clamped in the mounting groove 511, and finally, the assembly between the clip 600 and the pressing block 510 is stabilized by the clip block 630 and the bayonet 513, and the clamping portion 620 of the clip 600 clamps the common terminal 200 and the normally closed terminal, when the sliding device slides up and down, the sliding device is also more stable and smooth.

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, meanwhile, the two clamping plates respectively include a connecting arm 621 and a contact arm 622, the two contact arms 622 are designed to form an included angle, and the two contact arms 622 are provided with opposite convex ribs 623, when the clamping portion 620 clamps the common terminal 200 and the output terminal 300, the convex ribs 623 on the contact arms 622 are in contact with the common terminal 200 and the output terminal 300, by the design of the convex ribs 623, the contact area between the clip 600 and the common terminal 200 and the output terminal 300 can be increased, and the convex ribs 623 and the contact arms 622 are designed as a whole, and finally, the connection between the clip 600 and the common terminal 200 and the output terminal 300 can be more stable when the clip 600 slides up and down.

Referring to fig. 4, in the present 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 bottom of the two contact arms 622 may be provided with an outward-opened tilt arm, so that the tilt arm is in a horn shape, and the horn-shaped tilt arm may prevent the clamping portion 620 from blocking when the clamping portion 620 slides on the common terminal 200 and the output terminal 300, so that the clamping portion 620 slides smoothly, thereby preventing the clamping portion 620 from being damaged or deformed.

Referring to fig. 1 or fig. 2, because the application of the micro switch is wide, the micro switch needs to be subjected to dustproof and waterproof treatment, therefore, a sealing ring 800 is further sleeved on the pressing column 620, one end of the sealing ring 800 is clamped on the pressing column 620, the other end of the sealing ring 800 is hermetically bonded with the housing 400, meanwhile, the covering part of the housing 400 and the base 100 is hermetically connected through a sealing glue, the common terminal 200 and the output terminal 300 are mounted on the base 100 by adopting a plastic-coated process or a terminal-inserting process, and finally, the accommodating cavity is sealed, the dustproof and waterproof function is realized, oxidation of the inner clamp 600, the spring 700, the common terminal 200 and the output terminal 300 is avoided, and the service life of the micro switch is prolonged.

Example two:

the clip type microswitch in the embodiment is basically the same as the first embodiment, and the main difference is as follows: 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 insulation part 120 of the base 100 is disposed above the output terminal 300 (normally open terminal), and the thickness of the insulation part 120 is the same as that of the normally open terminal, when the assembly is performed, the clamping parts 620 at two ends of the clip 600 are respectively clamped between the insulation part 120 and the common terminal 200, when a signal needs to be switched, the pressing part 500 is pressed, the pressing part 500 presses the clip 600, when the clip 600 is pressed, the clamping parts 620 slide down on the insulation part 120 and the common terminal 200, one end clamped on the insulation part 120 slides down to the normally open terminal, the normally open terminal is clamped, so as to achieve the conduction of the signal, the pressing part 500 is released, the pressing part 500 is reset under the elastic force of the spring 700, so that the clamping parts 620 slide up and reset, and are clamped again on the insulation part 120 and the common terminal 200, so as to achieve the disconnection of the signal, finally, synchronous up-and-down sliding is achieved by adopting bilateral clamping, so that signals are more stable when conducted, and signal switching is smoother.

In conclusion, the clamping guide of the two side clamping parts 620 realizes synchronous up-and-down sliding, so that the signal is switched on and off, the signal switching is smoother, the signal switching is more stable, meanwhile, the convex ribs 623 in an integrated design are provided, the connection between the clamping parts 620 and the common terminal 200 and the output terminal 300 can be increased, the connection is more stable, the clamping parts 600 are connected with the pressing block 510 in a buckled mode, the assembly between the clamping parts 600 and the pressing block 510 is firm, the clamping parts 620 of the clamping parts 600 can conveniently slide up and down, and finally, the micro switch is simple in overall structure, reasonable in design and good in stability.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. Those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the utility model as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (9)

1. A clip-type microswitch, comprising:

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

the shell covers the base and forms an accommodating cavity;

the pressing core 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, an installation groove is formed in the other end of the pressing block, and a second limiting column is arranged in the middle of the installation groove;

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

and the spring is arranged in the accommodating cavity, one end of the spring is sleeved on the first limiting column and abutted against the base, and the other end of the spring is sleeved on the second limiting column and abutted against the clamping ring.

2. The clip-type microswitch according to claim 1, wherein: bayonets are respectively arranged on two side walls of the mounting groove, clamping blocks matched with the bayonets are respectively arranged on the fixing walls on two sides of the clip, the clip is arranged in the mounting groove, and the bayonets are buckled into the clamping blocks to enable the clip to be arranged in the mounting groove.

3. The clip type microswitch according to 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 the contact arms.

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

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

6. The clip-type microswitch according to claim 3, wherein: the two contact arms are designed to form an included angle.

7. The clip-type microswitch according to claim 1, wherein: still the cover is equipped with the sealing washer on the post according to pressing, the one end clamp of sealing washer is on pressing the post, and the other end then bonds with the shell is sealed.

8. The clip-type microswitch according to claim 1, wherein: the covering part of the shell and the base is in sealing connection through sealant.

9. The clip-type microswitch according to claim 1, wherein: the common terminal and the output terminal are installed on the base through a plastic-coated process or a terminal inserting process.

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