CN210156284U

CN210156284U - Direct-pressing patch structure switch

Info

Publication number: CN210156284U
Application number: CN201921508801.3U
Authority: CN
Inventors: 赵军对; 袁斌
Original assignee: Shenzhen Dongqiang Precise Plastic & Electric Co Ltd
Current assignee: Shenzhen Dongqiang Precise Plastic & Electric Co Ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-03-17
Anticipated expiration: 2029-09-11

Abstract

A direct-pressing patch structure switch comprises a cover plate, a button, a reed, a base and a clamping piece terminal, wherein the cover plate is provided with an oval through hole and a positioning arc; the base comprises a positioning column and an accommodating cavity, the clamping piece terminal is positioned at the bottom of the base, the button comprises a base, a pressing part and a contact positioned at the lower end of the base, the pressing part is of an oval structure, the base is of a rectangular structure with four chamfers, and the button is positioned below the cover plate; the pressing part and the oval through hole of the cover plate form limit fit, and the base and a rectangular structure accommodating cavity with four chamfers form limit fit; the base and the cover plate penetrate through the positioning circular arc through the positioning column to be connected, and the button, the reed and the clamping piece terminal are wrapped in a space formed by the cover plate and the base. Through the utility model discloses a limit structure of button and base makes the direction of motion of base restricted, avoids taking place to rotate or squint because of the base and leads to welding inconvenient, welding not in place.

Description

Direct-pressing patch structure switch

Technical Field

The utility model relates to an electronic components field, especially a directly press paster structure switch.

Background

The tact switch is an electronic switch, belonging to the electronic components. When the pressure-relief switch is used, the switch is pressed towards the switch operation direction under the condition of meeting the operation force, the switch is closed and switched on, when the pressure is relieved, the switch is switched off, and the internal structure of the switch is switched on and off by the stress change of the metal elastic sheet. The tact switch has advantages of small contact resistance load, accurate operation force error, diversified specifications and the like, and is widely applied to electronic equipment, white household appliances and the like, such as: digital products, remote controllers, communication products, household appliances and the like.

Among the prior art, the button of SMD dabs switch is mainly for cylindrical structure, and the user welds through the fixed button part when using dabs the switch and weld, nevertheless because the base that dabs the switch does not receive fixedly, the phenomenon of rotation or skew takes place easily for dabs the switch location unstability, welds not in place.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages of the prior art, the present invention provides a switch with a direct-push patch structure.

The utility model provides a technical scheme that its technical problem adopted is: a direct-pressing patch structure switch comprises a cover plate, a button, a reed, a base and a clamping piece terminal, wherein the cover plate is provided with an oval through hole positioned in the center and positioning arcs positioned at four corners of the cover plate;

the base comprises a positioning column positioned on the upper end face, an accommodating cavity formed by downwards sinking from the upper end face and a step groove positioned at the bottom of the accommodating cavity, the reed is positioned in the step groove, the clamping piece terminal is positioned at the bottom of the base, and the accommodating cavity is of a rectangular structure with four chamfers;

the button comprises a base, a pressing part and a contact, wherein the pressing part extends upwards from the middle of the base, the contact is positioned at the lower end of the base, the pressing part is of an oval structure, the base is of a rectangular structure with four chamfers, and the button is positioned below the cover plate;

the upper end of the pressing part penetrates through the oval through hole of the cover plate and is in up-and-down sliding fit along the through hole, and the pressing part and the oval through hole of the cover plate form limiting fit; the base of the button penetrates into the rectangular structure containing cavity with the four chamfers and is in up-and-down sliding fit along the containing cavity, and the base and the rectangular structure containing cavity with the four chamfers are in limit fit;

the locating column of base passes the location circular arc of apron and connects and form airtight space, airtight space will including button, reed, fastener terminal parcel, the fastener terminal is equipped with the PIN foot, the part that the PIN foot exposes in the base is bent upwards and is half surrounding structure.

As a further improvement of the utility model: the clamping piece terminal is provided with a first terminal and a second terminal, the first terminal is provided with a middle bubble point located in the accommodating cavity, the second terminal is provided with two edge bubble points located on two sides of the middle bubble point, and the first terminal and the second terminal are not in contact with each other.

As a further improvement of the utility model: the utility model discloses a simple structure, including base, apron, reference column, apron, base up end, apron, the base up end is equipped with 2 at least reference columns, the apron is equipped with the location circular arc with the same quantity of reference column, the reference column passes the location circular arc, the location circular arc constitutes spacing cooperation with the reference column.

As a further improvement of the utility model: the reed is of a semi-arc structure and is positioned above the bubble points on two sides of the second terminal in the accommodating cavity.

Compared with the prior art, the beneficial effects of the utility model are that: through the utility model discloses a limit structure of button and base makes the direction of motion of base restricted. When the user uses the utility model discloses when welding, can avoid taking place to rotate or squint because of the base and lead to welding inconvenient, welding not in place.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic view of the base structure of the present invention.

Fig. 4 is a schematic view of the terminal structure of the fastener of the present invention.

Detailed Description

The invention will now be further described with reference to the accompanying drawings, in which:

referring to fig. 1 to 4, a direct-push patch structure switch includes a cover plate 11, a button 21, a spring 34, a base 31, and a clip terminal 41, wherein the cover plate 11 has an oval through hole 14 at the center and positioning arcs 15 at four corners of the cover plate.

Referring to fig. 3, the base 31 includes a positioning column 36 located on the upper end surface, an accommodating cavity 35 formed by recessing from the upper end surface downward, and a step groove 37 located at the bottom of the accommodating cavity 35, the spring 34 is located in the step groove 37, the card member terminal 41 is located at the bottom of the base 31, and the accommodating cavity 35 is a rectangular structure with four chamfered ends.

Referring to fig. 4, the card connector terminal 41 is provided with a first terminal 42 and a second terminal 43, the first terminal 42 is provided with a middle bubble point 46 located in the accommodating cavity 35, the second terminal 43 is provided with two side bubble points 47 located at two sides of the middle bubble point 46, and the first terminal 42 and the second terminal 43 are not in contact with each other.

The button 21 comprises a base 23, a pressing part 22 extending upwards from the middle of the base, and a contact 24 located at the lower end of the base, wherein the pressing part 22 is of an oval structure, and the base 23 is of a rectangular structure with four chamfers.

The spring 34 is a semi-arc structure and is located above the two bubble points 47 on the two sides of the second terminal 43 in the accommodating cavity 35. In the resting state, the center 34 of the leaf spring is convex upward, not contacting the middle bubble point 46. The contact 24 of the button is positioned above the spring 34, and when the pressing portion 22 of the button is pressed downward, the contact 24 descends to press the spring 34. Before the spring 34 is acted, the first terminal 42 and the second terminal 43 are not contacted with each other because the plastic block exists between the first terminal 42 and the second terminal 43. The reed 34 deforms after being acted by force, the middle part of the reed 34 is sunken downwards, the sunken part contacts the middle bubble point 46 of the first terminal 42, the edge of the reed 34 contacts the two bubble points 47 on two sides of the second terminal 43, the middle bubble point 46 is communicated with the two bubble points 47, and the first terminal 42 is communicated with the second terminal 43 to form a passage.

The upper end of the pressing part 22 penetrates through the oval through hole 14 of the cover plate and is in up-and-down sliding fit along the through hole, and the pressing part 22 and the oval through hole 14 of the cover plate form limiting fit; the base 23 of the button penetrates into the rectangular structure containing cavity 35 with four chamfers and is in up-and-down sliding fit along the containing cavity 35, and the base 23 and the rectangular structure containing cavity 35 with four chamfers form limiting fit.

Because the pressing part 22 of the button penetrates out of the oval through hole 14 of the cover plate, the width of the base 23 is larger than that of the oval through hole 14, namely, the cover plate 11 is buckled with the button 21 to limit the motion direction and the track of the button 21, and the button 21 is prevented from falling off. In addition, since the pressing portion 22 and the elliptical through hole 14 of the cover plate are both elliptical structures, and the base 23 and the accommodating cavity 35 are both rectangular structures with four chamfered ends, the movement of the pressing portion 22 and the base 23 is further limited, that is, the button 21 can only slide up and down in the space where the cover plate 11 and the base 31 are connected, and when the button 21 is fixed by an external force, the base 31 cannot rotate or shift around the axial center line of the button 21. The utility model discloses when the product is used for the welding, behind user's fixed button 21, base 31 can not rotate at will or squint, and the user can more make things convenient for more steadily to put and weld on the PCB board.

The positioning columns 36 of the base 31 penetrate through the positioning arcs 15 of the cover plate 11 to be connected to form a closed space, the button 21, the spring 34 and the card clamping terminal 41 are wrapped in the closed space, the card clamping terminal 41 is provided with a PIN 48, and the part, exposed out of the base 31, of the PIN 48 is bent upwards to form a semi-enclosed structure. Light touch switch vertical type or right angle formula PIN foot for current paster, the utility model discloses upwards bend and be half PIN foot 48 of surrounding structure and can more sparingly weld the board space when welding on welding the board.

Furthermore, at least 2 positioning columns 36 are arranged on the upper end face of the base 31, the cover plate 11 is provided with positioning arcs 15 with the same number as the positioning columns 36, the positioning columns 36 penetrate through the positioning arcs 15, and the positioning arcs 15 and the positioning columns 36 form limit matching. The utility model discloses in the production process, because location circular arc 15 constitutes spacing cooperation with reference column 36 for apron 11 can not shift after the assembly. After all the parts are assembled, the positioning columns 36 of the base are riveted through a hot riveting process to fix the cover plate 11 and the base 31, so that the parts in the base 31 are prevented from falling off.

The utility model discloses a theory of operation: the button 21 is provided with a pressing part 22 and a contact 24, when the pressing part 22 is pressed down, the contact 24 presses down the spring 34, so that the spring 34 deforms and then contacts the middle bubble point 46 and the two bubble points 47. The reed 34, the middle bubble point 46, the two side bubble points 47, the first terminal 42 and the second terminal 43 are all made of metal materials, so that the first terminal 42 and the second terminal 43 are conducted when in contact to form an electric path, and the switch is completed. By limiting the structures of the button 21 and the base 31, when the button 21 is fixed by an external force, the base 31 cannot rotate or move around the axis center line of the button 21.

In the description of the present invention, it should be understood that the terms "upper end surface", "lower end surface", "top", "bottom", "left", "right", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description of the present invention, and therefore, cannot be understood as a limitation to the practical use direction of the present invention.

In conclusion, after the ordinary skilled in the art reads the document of the present invention, according to the present invention, the technical solution and technical concept of the present invention do not need creative mental labor to make other various corresponding transformation schemes, which all belong to the protection scope of the present invention.

Claims

1. The utility model provides a directly press paster structure switch, includes apron, button, reed, base, fastener terminal, its characterized in that:

the cover plate is provided with an oval through hole positioned in the center and positioning arcs positioned at four corners of the cover plate;

2. The direct-push tab configuration switch of claim 1, wherein: the clamping piece terminal is provided with a first terminal and a second terminal, the first terminal is provided with a middle bubble point located in the accommodating cavity, the second terminal is provided with two edge bubble points located on two sides of the middle bubble point, and the first terminal and the second terminal are not in contact with each other.

3. The direct-push tab configuration switch of claim 1, wherein: the utility model discloses a simple structure, including base, apron, reference column, apron, base up end, apron, the base up end is equipped with 2 at least reference columns, the apron is equipped with the location circular arc with the same quantity of reference column, the reference column passes the location circular arc, the location circular arc constitutes spacing cooperation with the reference column.

4. The direct-push tab configuration switch of claim 1, wherein: the reed is of a semi-arc structure and is positioned above the bubble points on two sides of the second terminal in the accommodating cavity.