CN212257237U

CN212257237U - Push switch

Info

Publication number: CN212257237U
Application number: CN202021505023.5U
Authority: CN
Inventors: 陈桂锐
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2020-12-29
Anticipated expiration: 2030-07-27

Abstract

The embodiment of the utility model discloses push switch, including drain pan, epitheca, static contact, movable contact, impeller, movable contact have connect in stationary blade and contact piece of an organic whole, form elasticity portion of bending between stationary blade and the contact piece, the drain pan is provided with first installation position, second installation position, static contact, stationary blade install respectively in first installation position, second installation position, just the end of contact piece is located directly over the static contact, contact piece middle part has concave position, the impeller slide set up in the upwards extension of epitheca, and can the up-and-down motion, the impeller lower extreme cooperation has the spring, the spring lower extreme is arranged in the concave position, the impeller passes through the spring makes the end of contact piece with the static contact forms the electrical contact and connects. The utility model discloses can make the contact between the contact abundant, form reliable electricity and connect, applicable in the heavy current to reach reliable stable use advantage.

Description

Push switch

Technical Field

The utility model relates to a switch especially relates to a press switch.

Background

A switch is an electronic component used to control the on or off state of a circuit. Many electronic devices include switches, such as sockets, computers, calculators, automatic doors, and various communication electronic devices. A conventional switch includes an insulating housing having an accommodating space, a plurality of fixed terminals accommodated in the insulating housing, a movable terminal and a driving device sequentially disposed in the accommodating space, and a cover assembled to the insulating housing. The switch includes a fixed terminal, a movable terminal, a contact portion, and a soldering portion, wherein the fixed terminal includes a contact portion for contacting with or disconnecting from the movable terminal, and a soldering portion extending out of the insulating body for connecting with a circuit board. For example: due to the self structure of the switch, for example, the short stroke causes the false contact, the contact force is not enough, so that the contact resistance between the contact points is large, and the like, thereby having potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem who solves lies in, provides a push switch. The push switch can be more safe and reliable.

In order to solve the above technical problems, an embodiment of the present invention provides a push switch, which comprises a bottom case, an upper case fastened to the bottom case, a static contact, a movable contact, and a pushing member, the movable contact piece is provided with a fixed piece and a contact piece which are connected into a whole, an elastic bending part is formed between the fixed piece and the contact piece, the bottom shell is provided with a first mounting position and a second mounting position, the static contact piece and the fixed piece are respectively mounted in the first mounting position and the second mounting position, the tail end of the contact piece is positioned right above the static contact piece, the middle part of the contact piece is provided with a concave position, the pushing piece is arranged in the upward extending part of the upper shell in a sliding way, and can move up and down, the lower end of the pushing piece is matched with a spring, the lower end of the spring is arranged in the concave position, the pushing piece enables the tail end of the contact piece to be in electrical contact connection with the static contact piece through the spring.

The second installation position comprises a 7-shaped limiting edge, a gap for inserting the fixing sheet is formed between the limiting edge and the inner bottom of the bottom shell, and a clearance gap is also formed between the limiting edge and the side edge of the bottom shell.

And a limiting pin is arranged on the side edge of the bottom shell above the static contact piece, and the contact piece is limited below the limiting pin.

The first installation position is provided with a pair of limiting edges which are oppositely arranged and a gap for inserting the static contact is arranged between the first installation position and the inner bottom of the bottom shell.

The static contact piece and the contact piece are provided with opposite contacts.

The upper shell is provided with buckling parts which are matched and connected corresponding to the buckles.

The buckling part is a buckling edge.

Implement the embodiment of the utility model provides a, following beneficial effect has: the utility model discloses can make the contact between the contact abundant, form reliable electricity and connect, applicable in the heavy current to reach reliable stable use advantage.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic overall sectional structure of the present invention;

fig. 3 is an exploded schematic view of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases by those skilled in the art

As shown in fig. 1, 2 and 3.

The main components of the push switch of the embodiment of the utility model are a bottom shell 1, an upper shell 2, a static contact 3, a movable contact 4 and a pushing piece 5.

The movable contact piece 4 has a fixed piece 41 and a contact piece 42 connected integrally, and an elastic bending part 43 is formed between the fixed piece 41 and the contact piece 42.

The bottom shell 1 is provided with a first mounting position 11 and a second mounting position 12, the static contact piece 3 is mounted in the first mounting position 11, the fixing piece 41 is mounted in the second mounting position 12, and the tail end of the contact piece 42 is positioned right above the static contact piece 3.

In order to achieve the above-mentioned installation relationship, the first installation position 11 has a pair of limiting edges 13, and the pair of limiting edges 13 are arranged oppositely and have a gap for inserting the static contact piece 3 with the bottom of the bottom shell.

The second mounting position 12 comprises a limiting edge 14 in a 7 shape, a gap for inserting the fixing sheet 41 is formed between the limiting edge 14 and the inner bottom of the bottom shell, and an air-clearance gap 15 is formed between the limiting edge and the side edge of the bottom shell, so that when the fixing sheet 41 of the movable contact sheet 4 is inserted into the limiting edge 14, the elastic bending part 43 is just positioned in the air-clearance gap 15.

Preferably, the phenomenon that the inner structure is abraded due to the overlarge rebound range of the movable contact piece 4 and the accidental touch is avoided, the limit pin 16 is arranged on the side edge of the bottom shell 1 above the static contact piece, and the contact piece 42 is limited below the limit pin 16, so that a certain elastic stress is kept.

The stationary contact piece 3 and the contact piece 4 are provided with

opposite contacts

31 and 44, respectively.

In order to make the connection structure of the bottom case 1 and the upper case 2 more stable and reliable, the upper parts of both sides of the bottom case 1 are provided with hooks 17, and the upper case 2 is provided with buckling parts 21 corresponding to the hooks for matching connection.

The utility model discloses impeller 5 slides from top to bottom and sets up in the upwards extension 22 of epitheca 2, and extension 22's shape can be for circular, square etc. and impeller 5 lower extreme cooperation has spring 6, and is corresponding, and contact piece 42 middle part has concave position 45, and concave position 45 is arranged in to spring 6 lower extreme.

The pushing member 5 is implemented by a common structure in the prior art, such as a structure of a pushing body disclosed in chinese patent publication No. CN 1128217A.

The contact on the contact piece 42 can be in intermittent contact and electric connection with the contact of the static contact piece 3 through the action of the pushing piece 5, and the elastic pressing force is applied through the spring in an intermittent pressing and locking state, so that the contacts are in full contact.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A push switch is characterized by comprising a bottom shell, an upper shell, a static contact piece, a movable contact piece and a pushing piece, wherein the upper shell is buckled with the bottom shell, the movable contact piece is provided with a fixed piece and a contact piece which are connected into a whole, an elastic bending part is formed between the fixed piece and the contact piece, the bottom shell is provided with a first installation position and a second installation position, the static contact piece and the fixed piece are respectively installed in the first installation position and the second installation position, the tail end of the contact piece is positioned right above the static contact piece, the middle part of the contact piece is provided with a concave position, the pushing piece is arranged in an upward extending part of the upper shell in a sliding mode and can move up and down, the lower end of the pushing piece is matched with a spring, the lower end of the spring is arranged in the concave position, and the pushing piece enables the tail end of the contact piece to be in electrical contact.

2. The push switch of claim 1, wherein the second mounting position comprises a limiting edge in a shape of "7", and a gap for inserting the fixing piece is formed between the limiting edge and the inner bottom of the bottom shell, and a clearance gap is formed between the limiting edge and the side edge of the bottom shell.

3. The push switch of claim 2, wherein a limit pin is disposed on a side of the bottom housing above the static contact, and the contact piece is limited under the limit pin.

4. The push switch of claim 3, wherein the first mounting portion has a pair of limiting edges, the limiting edges are arranged in an opposite direction and have a gap with the bottom of the bottom case for inserting the static contact.

5. The push switch of claim 4, wherein the stationary contact and the contact piece are each provided with opposing contacts.

6. The push switch according to any one of claims 1 to 5, wherein hooks are provided on upper portions of both sides of the bottom case, and the upper case is provided with a fastening portion corresponding to the hooks for mating connection.

7. The push switch of claim 6, wherein said snap feature is a snap edge.