CN217306339U

CN217306339U - Micro switch

Info

Publication number: CN217306339U
Application number: CN202221004701.9U
Authority: CN
Inventors: 汤锦松; 林旭汉
Original assignee: Xiamen Golden Switch Electronics Co ltd
Current assignee: Xiamen Golden Switch Electronics Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-26
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a micro-gap switch relates to the micro-gap switch field, and this micro-gap switch includes: the device comprises a shell, two wiring terminals, collinear terminals, a connecting piece and buttons, wherein one end of each wiring terminal is arranged in the shell, and the other end of each wiring terminal is a wiring end; the collinear terminal is completely positioned in the shell and is connected with one wiring terminal; the connecting piece is electrically connected with a common wire end, is movably arranged between the wiring terminals and is normally closed with one wiring terminal and normally open with the other wiring terminal; the button is movably arranged on the shell and used for controlling the connecting piece to be electrically contacted with or separated from the wiring terminal. The micro switch can reduce the transverse size, reduce the installation space of the micro switch, facilitate the installation of products and the design layout of terminal products, or can increase the internal space of the micro switch under the same installation space, accelerate the heat dissipation and avoid sintering; and the use of micro-switch parts can be reduced, and the cost is reduced.

Description

Micro switch

Technical Field

The utility model relates to a micro-gap switch field, concretely relates to micro-gap switch.

Background

The microswitch is a switch which is generally called a microswitch or a sensitive switch by connecting or disconnecting a static contact and a movable contact inside the switch by using a tiny external force because external mechanical force and action stroke are small. Micro switches are classified into three types, namely normally open type, normally closed type and conversion type according to purposes; before external force is applied, the static contact piece is communicated with the movable contact piece, and the microswitch is normally closed; otherwise, the normally open microswitch is a normally open microswitch which is provided with two terminals; the conversion switch can control two paths, the movable contact piece can be connected with one path before and after action, only the conduction of the other path can be controlled, the conversion switch is provided with three terminals, and the conversion switch can replace a normally open switch or a normally closed switch and is generally applied to a scene that a load cannot be conducted at the same time.

The COM end and the button of the existing conversion type microswitch are usually arranged at opposite ends of a shell, and the NC end and the NO end are positioned at the side of the shell, for example, the chinese utility model with publication number CN201112202Y discloses a microswitch, wherein the COM end is positioned at the opposite end of the button when the normally open and normally closed microswitch are formed, and the COM end and the NC end or the NO end are used as two wiring terminals.

The inventor is realizing the technical scheme of the utility model, finds that there are following technical problems in current micro-gap switch:

when the existing microswitch is formed into a normally open microswitch and a normally closed microswitch, the COM end extends outwards and is arranged opposite to the button, so that the transverse size of the microswitch is increased, and the microswitch occupies a larger space during installation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a micro-gap switch solves the big problem of current micro-gap switch transverse dimension at least, can reduce micro-gap switch to installation space's requirement, simplifies the structure.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme:

a micro-switch, comprising:

a housing;

the number of the connecting terminals is two, one end of each connecting terminal is arranged in the shell, and the other end of each connecting terminal is a wiring end;

the collinear terminal is positioned in the shell and is connected with one wiring terminal;

the connecting piece is electrically connected with the collinear end, is movably arranged between the wiring terminals, and is normally closed with one wiring terminal and normally open with the other wiring terminal; and

and the button is movably arranged on the shell and used for controlling the connecting piece to be electrically contacted with or separated from the wiring terminal.

In a further arrangement scheme, the connecting piece is a reed, one end of the reed is used for being electrically contacted with and separated from the wiring terminal, the other end of the reed is connected with a spring, and the middle part of the reed is connected with the collinear terminal; the spring is used for driving the reed to be in normally closed contact with one wiring terminal, and the button presses the spring to enable the reed to be electrically separated from the wiring terminal and enable the other wiring terminal to be electrically contacted.

In a further arrangement, the wiring terminal includes a first terminal and a second terminal, the collinear terminal is connected to the first terminal, and the connecting member is normally closed to the first terminal and normally open to the second terminal.

In a further set up scheme, the binding post includes a first terminal and a second terminal, the collinear terminal is connected with the second terminal, the connecting piece is in normally closed setting with the first terminal and in normally open setting with the second terminal.

In the further scheme that sets up, parallel arrangement just is located the casing homonymy between the binding post.

In a further arrangement, a clamping groove for clamping the collinear terminal is arranged in the shell, and a guide channel for arranging the wiring terminal and the collinear terminal is arranged in the clamping groove.

In the scheme of further setting, the activity of collineation terminal sets up in the primary importance and the second place of direction passageway, in the primary importance, collineation terminal and a binding post electric connection, in the second place, collineation terminal and two binding post electric property separation.

(III) advantageous effects

Compared with the prior art, the utility model provides a micro-gap switch possesses following beneficial effect:

the microswitch connects a collinear terminal with one of the wiring terminals, the two wiring terminals are connected outwards, the connecting piece is connected with the collinear terminal and is in normally closed connection with one of the wiring terminals, and the connecting piece is controlled to be in electrical contact with or separated from the wiring terminals through the button, so that a normally closed or normally open microswitch structure is formed, and the collinear terminal can be completely arranged in the shell because the collinear terminal is not used as a terminal for outward wiring any more, so that the transverse size and the size of the microswitch are reduced, the installation space of the microswitch is reduced, the installation of a product and the design layout of a terminal product are facilitated, or the internal space of the microswitch can be increased under the same installation space, the heat dissipation is accelerated, and the sintering is avoided; and the collinear terminal and one of the wiring terminals can be integrally formed, so that the use of parts of the microswitch can be reduced, the assembly cost is saved, and the equipment investment is reduced.

In the scheme that further sets up, the utility model discloses a micro-gap switch still possesses following beneficial effect:

(1) this micro-gap switch can install on current micro-gap switch shell structure, directly set up on the draw-in groove of current casing can, collinear terminal is connected through direction channel with binding post, so reduces the die sinking degree of difficulty and manufacturing cost.

(2) Collinear terminal activity sets up in the primary importance and the second place of casing primary importance, collinear terminal and a binding post electric connection form the micro-gap switch structure of normally opening or normal close the secondary importance, collinear terminal and two binding post electric separation form the conversion micro-gap switch structure, and the user of service can control collinear terminal activity adjustment micro-gap switch structure as required, and the suitability is strong.

Drawings

FIG. 1 is a front view of a microswitch in embodiment 1;

FIG. 2 is an internal perspective view of the microswitch in embodiment 1;

FIG. 3 is a schematic view showing the microswitch in embodiment 1 being a normally open microswitch;

FIG. 4 is a schematic view showing the microswitch in embodiment 1 when it is a normally closed microswitch;

fig. 5 is a schematic view of a normally open microswitch in embodiment 2;

fig. 6 is a schematic view of the normally open microswitch of embodiment 2 after being switched to the conversion microswitch;

FIG. 7 is a schematic view of a normally closed microswitch in embodiment 2;

fig. 8 is a schematic view of the normally closed microswitch in embodiment 2 after being switched to the switching microswitch;

fig. 9 is a perspective view of a connection terminal in embodiment 2.

Reference numerals are as follows: the terminal comprises a shell 1, a wiring terminal 2, a collinear terminal 3, a connecting piece 4, a button 5, a card slot 11, a guide channel 12, a wiring terminal 20, a wiring hole 21, a contact structure 22, a jack 23, a reed 40, a spring 41, a sliding groove 42, a pressing end 50, a first terminal 201 and a second terminal 202.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1: referring to fig. 1 and 2, fig. 1 is a front view of a micro switch according to embodiment 1, and fig. 2 is a perspective view of the interior of the micro switch according to embodiment 1.

A micro-switch, comprising: a housing 1, a wiring terminal 2, a collinear terminal 3, a connecting member 4 and a button 5.

The housing 1 is used for mounting other components, and may be a housing 1 made of plastic, ceramic or other insulating materials.

The number of the connecting terminals 2 is two, one end of each connecting terminal is arranged in the shell 1, and the other end of each connecting terminal is a connecting terminal 20.

The wiring terminal 2 is made of conductive materials and is externally connected through a wiring terminal 20 to form a circuit environment for the micro switch to work; the wiring terminal 2 may be exposed out of the housing 1 as required, or may be disposed in a groove of the housing 1, and may be provided with a wiring hole 21 or a contact structure 22 contacting with the connecting member 4 as required; in view of the object of the microswitch of reducing the transverse dimensions, the orientation of the wiring terminals 2 is avoided at the opposite ends of the push button 5, preferably at the side of the housing 1 as with the wiring terminals 2 of the known microswitches; in order to further reduce the volume of the microswitch, the connecting terminals 2 are preferably arranged in parallel and are positioned on the same side of the housing 1.

The collinear terminal 3 is located entirely inside the housing 1 and is connected to one of the terminals 2.

The collinear terminal 3 is made of conductive material, and is different from the collinear terminal 3 of the existing microswitch in that the collinear terminal does not have a part exposed out of the shell 1 under the condition of forming a normally open or normally closed microswitch structure, so that the aim of reducing the transverse size is fulfilled; of course, in case of sufficient installation space, the technician may choose to also make the end of the collinear terminal 3 exposed to the housing 1 in a degraded manner.

The connecting piece 4 is electrically connected with the common-line end, and the connecting piece 4 is movably arranged between the wiring terminals 2 and is normally closed with one wiring terminal 2 and normally open with the other wiring terminal.

The connecting piece 4 is used for connecting the collinear terminal 3 and the wiring terminal 2, in one embodiment of the connecting piece 4, the connecting piece 4 is a reed 40, one end of the reed 40 is provided with a contact for electrically contacting and separating with the wiring terminal 2, the other end is connected with a spring 41, and the middle part is connected with the collinear terminal 3; the spring 41 is used for driving the reed 40 to be in normally closed contact with one connecting terminal 2, and the button 5 presses the spring 41 to enable the reed 40 to be electrically separated from the connecting terminal 2 and enable the other connecting terminal 2 to be electrically contacted; of course, the connecting member 4 can also be selected from other reeds 40 or transmission structures of the existing microswitch; the normally closed setting means that the connecting member 4 and the connecting terminal 2 are in electrical contact in an initial state or a non-pressed state of the button 5, and the normally open setting is opposite.

And the button 5 is movably arranged on the shell 1 and used for controlling the connecting piece 4 to be electrically contacted with or separated from the wiring terminal 2.

The push button 5 may be of a telescopic type or a rotary type, and includes a pressing end 50, and the push button 5 is telescopic or rotary so that the pressing end 50 movably presses the link 4.

Referring to fig. 3, when the micro switch of the present embodiment is a normally open micro switch, the connection terminal 2 includes a first terminal 201 and a second terminal 202, the collinear terminal 3 is connected to the first terminal 201, and the connection member 4 is normally closed to the first terminal 201 and normally open to the second terminal 202.

Referring to fig. 4, when the micro switch of the present embodiment is a normally closed micro switch, the connection terminal 2 includes a first terminal 201 and a second terminal 202, the collinear terminal 3 is connected to the second terminal 202, and the connection member 4 is normally closed with the first terminal 201 and normally open with the second terminal 202.

The micro-switch of the embodiment connects the collinear terminal 3 with one of the wiring terminals 2, the two wiring terminals 2 are connected outwards, the connecting piece 4 is connected with the collinear terminal 3 and is in normally closed connection with one of the wiring terminals 2, and the connecting piece 4 is controlled to be in electrical contact with or separated from the wiring terminals 2 through the button 5, so that a normally closed or normally open micro-switch structure is formed, and the collinear terminal 3 is not used as a terminal for outward wiring any more and can be completely arranged in the shell 1, so that the transverse size and the volume of the micro-switch are reduced, the installation space of the micro-switch is reduced, the installation of a product and the design layout of a terminal product are facilitated, or the internal space of the micro-switch can be increased under the same installation space, the heat dissipation is accelerated, and the sintering is avoided; and collinear terminal 3 can integrated into one piece with one of them binding post 2, can reduce the part use of micro-gap switch itself, and then practice thrift assembly cost and reduction equipment input.

Example 2: referring to fig. 5, 6, 7 and 8, fig. 5 is a schematic diagram of a normally open microswitch in embodiment 2, fig. 6 is a schematic diagram of the normally open microswitch in embodiment 2 after being switched to a conversion type microswitch, fig. 7 is a schematic diagram of the normally closed microswitch in embodiment 2, and fig. 8 is a schematic diagram of the normally closed microswitch in embodiment 2 after being switched to a conversion type microswitch.

On the basis of embodiment 1, in order to realize that normally open and normally closed micro-switches have a conversion type micro-switch function, the micro-switch of this embodiment is provided with a card slot 11 for clamping the collinear terminal 3 in the housing 1, and the card slot 11 is provided with a guide channel 12 for arranging the collinear terminal 3.

The activity of collinear terminal 3 sets up in the primary importance and the second place of casing 1, and at the primary importance, collinear terminal 3 and binding post 2 electric connection, and at the second place, collinear terminal 3 and two binding post 2 electric separation.

In an embodiment in which the collinear terminal 3 is movably disposed with the housing 1, the collinear terminal 3 is a conductive metal strip and is disposed in the guide channel 12, and the conductive metal strip can be extended and retracted in the guide channel 12 to move to the first position or the second position; in order to facilitate the connection between the wiring terminal 2 and the common line terminal 3, a jack 23 is arranged at the connection end of the wiring terminal 2 and the common line terminal 3, and the jack 23 is used for tightly connecting the common line terminal 3, so that the connection between the wiring terminal 2 and the common line terminal is firm; referring to fig. 9, fig. 9 is a perspective view of the connection terminal in embodiment 2, in order to ensure that the connection member 4 and the collinear terminal 3 can normally contact each other when the collinear terminal 3 moves and avoid interference between the connection member 4 and the connection terminal 2, a sliding slot 42 is formed in the middle of the collinear terminal 3 along the moving direction of the collinear terminal 9, and the connection member 4 passes through the sliding slot 42 and is in sliding contact with the sliding slot 42; in the second position, the collinear terminal 3 may be fixed to the housing 1 by screwing or by snapping or the like.

In the microswitch of the embodiment, the collinear terminal 3 is movably arranged between a first position and a second position of the shell 1, and in the first position, the collinear terminal 3 slides to the inside of the shell 1 in the guide channel 12 and is electrically connected with a wiring terminal 2 to form a normally open or normally closed microswitch structure; at the second position, collinear terminal 3 stretches out casing 1 along guide way 12 to with two binding post 2 electric separation, form the conversion micro-gap switch structure, the adaptation does not have the product of strict requirement to the installation space, and user of service can control collinear terminal 3 activity adjustment micro-gap switch type as required, improves this micro-gap switch's suitability.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A micro-switch, comprising:

a housing;

the number of the wiring terminals is two, one end of each wiring terminal is arranged in the shell, and the other end of each wiring terminal is a wiring terminal;

2. The microswitch of claim 1, wherein the connecting member is a reed having one end for electrically contacting and separating with the connection terminal, the other end connected with a spring, and a middle portion connected with the collinear terminal; the spring is used for driving the reed to be in normally closed contact with one wiring terminal, and the button presses the spring to enable the reed to be electrically separated from the wiring terminal and enable the other wiring terminal to be electrically contacted.

3. The microswitch of claim 1, wherein the wire terminals include a first terminal and a second terminal, the collinear terminal connected to the first terminal, the connector arranged normally closed to the first terminal and normally open to the second terminal.

4. The microswitch of claim 1, wherein the wire connection terminal comprises a first terminal and a second terminal, the co-linear terminal connected to the second terminal, the connector being normally closed to the first terminal and normally open to the second terminal.

5. The microswitch of claim 1, wherein the terminals are arranged in parallel and are located on the same side of the housing.

6. The microswitch of claim 1, wherein a slot is provided in the housing for receiving the collinear terminal, the slot having a guide channel for routing the wire connecting terminal and the collinear terminal.

7. The microswitch of claim 6, wherein the collinear terminal is movably disposed in the guide channel between a first position in which the collinear terminal is electrically connected to one of the connection terminals and a second position in which the collinear terminal is electrically disconnected from both of the connection terminals.