CN216412910U

CN216412910U - Five-foot light-touch switch

Info

Publication number: CN216412910U
Application number: CN202122984912.5U
Authority: CN
Inventors: 林志明
Original assignee: Zhejiang Chenming Electronics Co ltd
Current assignee: Zhejiang Chenming Electronics Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-04-29
Anticipated expiration: 2031-11-24

Abstract

The utility model provides a five-foot light-touch switch which comprises a base, a metal cover plate, a spring plate structure, a driving button and a conducting strip assembly, wherein the metal cover plate is arranged on the base; one side of base is the installation contact surface of butt on the circuit board, be formed with two recesses of stepping down between installation contact surface both sides and the base top, the installation contact surface has the baffle structure of the vertical extension shaping of base top direction, metal covering plate is including covering the upper cover at the base top, the upper cover is including the cooperation butt in the inboard connecting edge of baffle structure, adopt this technical scheme, when dabbing the switch and carrying out the surface mounting welding on the circuit board, can prevent through baffle structure that solder agent from getting into the switch along the connecting gap between upper cover and the installation contact surface inside, play the effect of isolated solder agent in the installation, play the installation protective effect to dabbing the switch product, guarantee to dabbing the normal safe handling of switch.

Description

Five-foot light-touch switch

Technical Field

The utility model relates to the technical field of switches, in particular to a five-foot light-touch switch.

Background

The light touch switch is an electronic switch, also called a key switch, when in use, the switch can be switched on by lightly pressing the switch, when the hand is released, the switch is switched off, the internal structure of the light touch switch realizes the on-off by the elastic force of a metal elastic sheet (movable contact sheet), the light touch switch has the advantages of small contact resistance load, accurate operation force error, diversified specifications and the like, and is widely applied to the aspects of electronic equipment, white household appliances and the like.

A light touch switch in the market, refer to fig. 5, which includes a base 01, a cover plate 02, a button 03, a reed and three output terminals 04, the reed and the button are disposed between the cover plate and the base, one side of the base 01 is a mounting side surface mounted on a circuit board, the three output terminals 04 are flatly disposed on the mounting side surface at intervals, the cover plate 02 is abutted against the upper side of the mounting side surface and has pins extending outward, and two pins are disposed on both sides of the cover plate. However, in the process of mounting and welding the product, the connecting part of the cover plate and the mounting side surface is abutted against the circuit board, so that the solder can easily enter the switch along the connecting gap between the cover plate and the mounting side surface, the normal action of the switch button can be influenced, and the service life of the product can be shortened.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the problem that when the light-touch switch in the prior art is mounted and welded on a circuit board, solder can easily enter the switch along a connecting gap between the mounting side surface of the base and the cover plate, so that the normal action of the switch button can be influenced, and the service life of a product can be shortened.

In order to solve the technical problem, the utility model provides a five-foot light-touch switch which comprises a base, a metal cover plate, a spring plate structure and a driving button, wherein the spring plate structure and the driving button are arranged between the base and the metal cover plate;

the side face of one side of the base is a mounting contact surface which is abutted against the circuit board, two abdicating grooves are formed between the two sides of the mounting contact surface and the top of the base, the mounting contact surface is provided with a baffle structure which is formed by vertically extending towards the top of the base, and the baffle structure is positioned between the two abdicating grooves;

the metal cover plate comprises an upper cover part covering the top of the base, the baffle structure is arranged higher than the upper cover part, and the upper cover part comprises a connecting edge matched and abutted to the inner side of the baffle structure and two connecting pins which are formed at two ends of the connecting edge and penetrate through one side of the abdicating groove;

the conducting strip subassembly is including extending the setting and being in first group of guide pin structure on the installation contact surface to and extend the setting and be in second group of guide pin structure on the another side of base.

As a preferable scheme, an L-shaped step is formed on the inner side of the baffle structure, and the connecting edge abuts against the L-shaped step and extends towards two ends of the L-shaped step in an arc shape to be connected with the two connecting pins.

As a preferred scheme, the conducting strip assembly comprises a first conducting strip horizontally penetrating through the inside of the base and two second conducting strips arranged on two sides of the first conducting strip in parallel, and the two second conducting strips are integrally formed through a connecting strip.

As a preferable scheme, one end of the first conducting strip is provided with a circular part, a spherical contact is formed on the circular part in a protruding and extending mode, and two rectangular contacts are oppositely arranged on the two second conducting strips; the section of the elastic sheet structure is of an arc-shaped structure, the elastic sheet structure and the spherical contact of the first conducting sheet are arranged oppositely up and down, and the peripheral sides of the elastic sheet structure are matched and abutted against the rectangular contacts of the two second conducting sheets.

As a preferred scheme, the first conducting strip and the two second conducting strips are integrally embedded in the base in an injection molding manner; the first group of guide pin structures comprise first guide pins and two second guide pins, the first guide pins extend to the installation contact surface in a bent mode through the first conducting plates, the two second guide pins extend to the installation contact surface in a bent mode through the two second conducting plates, and concave portions suitable for containing the first guide pins and the second guide pins are arranged on the installation contact surface.

As a preferred scheme, the second group of lead structures includes two third leads respectively extending from two second conductive sheets to the other side surface of the base, and the third leads and the second leads are respectively integrally formed at two ends of the second conductive sheets.

As a preferred scheme, the first conducting strip and the two second conducting strips are integrally embedded in the base in an injection molding mode.

As a preferable scheme, the upper cover part is provided with a button hole for the driving button to extend out, one of the upper cover part and the top of the base is provided with at least one fixing column, and the other of the upper cover part and the top of the base is provided with at least one insertion hole which is in insertion fit with the fixing column.

As a preferable scheme, the metal cover plate comprises two side baffle portions formed at two sides of the upper cover portion, and the two side baffle portions respectively comprise two positioning pins extending in the same direction as the connecting pins and two limiting bent edges clamped in the limiting grooves of the side walls of the base.

As a preferable scheme, a waterproof membrane positioned between the driving button and the elastic sheet structure is further arranged in the base.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1. the five-pin tact switch provided by the utility model has the advantages that when the tact switch is used for surface mounting welding on the circuit board, the connecting edge of the upper cover part is just abutted against the inner side of the baffle plate structure, so that the connecting gap between the upper cover part and the mounting contact surface can be shielded, the design of the technical scheme is adopted, when the tact switch is used for surface mounting welding on the circuit board, can prevent through the baffle structure that solder agent from along the connection gap entering switch between upper cover portion and the installation contact surface inside, play isolated solder agent's effect in the installation, play installation protecting effect to dabbing the switch product, guarantee to dabbing the normal safe handling of switch, the practicality is good.

2. According to the five-pin tact switch provided by the utility model, the L-shaped step is formed on the inner side of the baffle structure, the connecting edge abuts against the L-shaped step, the structure is arranged, the L-shaped step has a limiting abutting effect on the connecting edge of the upper cover part, namely, the connecting position of the upper cover part and the mounting contact surface is formed on the L-shaped step, the connecting edge of the upper cover part is prevented from being exposed out of the baffle structure, when the mounting contact surface of the base abuts against the circuit board, the upper cover part is separated from the circuit board through the baffle structure, so that a welding agent is prevented from permeating between the upper cover part and the mounting contact surface, the protection effect is good, and the quality reliability of mounting and welding of a tact switch product on the circuit board is improved.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below.

FIG. 1 is a schematic perspective view of a five-foot tact switch according to the present invention;

FIG. 2 is a schematic structural diagram of the five-foot tact switch shown in FIG. 1;

FIG. 3 is a schematic diagram of a split structure of the five-foot tact switch of the present invention;

FIG. 4 is a schematic view of the conductive sheet assembly of the present invention in a base;

FIG. 5 is a schematic structural diagram of a tact switch of the prior art;

description of reference numerals: 1. a base; 2. a metal cover plate; 21. an upper cover portion; 22. a side baffle portion; 23. a connecting edge; 24. a connecting pin; 25. a positioning leg; 26. limiting and bending edges; 27. inserting holes; 3. mounting a contact surface; 31. a baffle structure; 22. an L-shaped step; 4. a conductive sheet assembly; 401. a first lead structure; 402. a first lead structure; 41. a first conductive sheet; 42. a second conductive sheet; 43. a first lead; 44. a second lead; 45. a third lead; 5. a yielding groove; 6. a drive button; 7. fixing a column; 81. a spherical contact; 82. Rectangular contacts.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

The embodiment provides a five-foot light-touch switch as shown in fig. 1-4, which includes a base 1, a metal cover plate 2, a spring plate structure and a driving button 6, wherein the spring plate structure and the driving button 6 are arranged between the base 1 and the metal cover plate 2, and a conducting strip assembly 4 which is in matched contact with the spring plate structure is arranged in an inner cavity of the base 1;

the side face of one side of the base 1 is a mounting contact face 3 abutted to the circuit board, two yielding grooves 5 are formed between two sides of the mounting contact face 3 and the top of the base 1, the mounting contact face 3 is provided with a baffle structure 31 which is formed by vertically extending towards the top of the base 1, and the baffle structure 31 is positioned between the two yielding grooves 5;

the metal cover plate 2 comprises an upper cover part 21 covering the top of the base 1, the baffle plate structure 31 is arranged higher than the upper cover part 21, the upper cover part 21 comprises a connecting edge 23 matched and abutted to the inner side of the baffle plate structure, and two connecting pins 24 which are formed at two ends of the connecting edge 23 and penetrate through one side of the abdicating groove 5;

the conductive sheet assembly 4 includes a first lead structure 401 extending on the mounting contact surface 3, and a second set of lead structures extending on the other side of the base 1.

The above embodiment is the core technical solution of this embodiment, when the mounting contact surface 3 of the base 1 abuts against the circuit board, the first pin structure 401 contacts with the circuit board, the baffle structure 31 is vertically formed on the mounting contact surface 3 in an extending manner, and two receding grooves 5 are arranged on two sides of the mounting contact surface 3, the mounting contact surface 3 and the circuit board reserve a vacant position at the receding groove 5, so that the upper cover portion 21 has a clearance distance with a certain height from the circuit board at the receding groove 5, thereby preventing solder from penetrating between the upper cover portion 21 and the base 1 from the receding groove 5, and the baffle structure 31 is designed to be higher than the upper cover portion 21 covering the top of the base 1, so that the connecting edge 23 of the upper cover portion 21 just abuts against the inner side of the baffle structure 31, so as to shield the connecting gap between the upper cover portion 21 and the mounting contact surface 3, the benefit of adopting this technical scheme design lies in, when dabbing the switch and carrying out surface mounting welding on the circuit board, can prevent through baffle structure 31 that the solder agent from along the connection gap entering switch between upper cover portion 21 and the installation contact surface 3 inside, play the effect of isolated solder agent in the installation, play the installation protecting effect to dabbing the switch product, guarantee to dabbing the normal safe handling of switch, the practicality is good.

As a preferred embodiment, as shown in fig. 2, an L-shaped step 32 is formed inside the baffle structure 31, and the connecting edge 23 abuts against the L-shaped step 32 and extends in an arc shape towards two ends thereof to connect with the two connecting legs 24. According to the structural arrangement, the L-shaped step 32 is used for limiting and abutting the connecting edge 23 of the upper cover part 21, namely, the connecting position of the upper cover part 21 and the mounting contact surface 3 is formed on the L-shaped step 32, the connecting edge 23 of the upper cover part 21 is prevented from being exposed out of the baffle structure 31, when the mounting contact surface 3 of the base 1 abuts against the circuit board, the upper cover part is separated from the circuit board through the baffle structure 31, so that a welding agent is prevented from permeating between the upper cover part 21 and the mounting contact surface 3, the protection effect is good, and the quality reliability of mounting and welding of a light-touch switch product on the circuit board is improved.

The specific arrangement of the conductive sheet assembly is described in detail below with reference to fig. 1-4:

the conductive sheet assembly 4 further includes a second pin structure 402 extending on the other side of the base 1, that is, the two side surfaces of the base 1 are respectively provided with a first conductive structure and a second pin structure 402, and a plurality of groups of signals of the tact switch can be output through the first conductive structure and the second pin structure 402, wherein, referring to fig. 4, the conductive sheet assembly includes a first conductive sheet horizontally penetrating the inside of the base and two second conductive sheets arranged in parallel on the two sides of the first conductive sheet, the two second conductive sheets are integrally formed by a connecting sheet, one end of the first conductive sheet is provided with a circular portion, a spherical contact is formed by protruding and extending the circular portion, and two rectangular contacts are oppositely arranged on the two second conductive sheets; the shape contour of the elastic sheet structure is circular, the cross section of the elastic sheet structure is arc-shaped, the elastic sheet structure and the spherical contact of the first conducting sheet are oppositely arranged up and down, the peripheral sides of the elastic sheet structure are matched and abutted on the rectangular contacts of the two second conducting sheets, the elastic sheet structure is enabled to be always in contact with the two second conducting sheets 42 (the elastic sheet structure is displayed in the attached drawing), when the driving button 6 is pressed, the elastic sheet structure is enabled to be pressed to deform and then is in contact with the first conducting sheet, and therefore two conducting loops are formed by connection between the first conducting sheet and the two second conducting sheets.

As a specific structure setting, first conducting strip and two second conducting strips are the integrative dress of moulding plastics and inlaying in base 1, and the installation shaping is convenient, and structural stability is good, first pin structure 401 include by first conducting strip bends to extend to first pin 43 on the installation contact surface 3, and bend by two second conducting strips 42 and extend to two second pins 44 on the installation contact surface 3, be provided with on the installation contact surface 3 and be fit for holding the concave part of first pin 43 and second pin 44, design like this makes first pin 43 and second pin 44 not higher than installation contact surface 3 ensures installation contact surface 3 levels the butt on the circuit board, then carries out the stick-welding to first pin 43 and second pin 44 on the circuit board and handles. Further provided, the second guide pin structure 402 includes two second conductive sheets 42 respectively bent and extended to two third guide pins 45 on the other side surface of the base 1, the third guide pins 45 and the second guide pins 44 are respectively integrated into one piece at two ends of the second conductive sheets 42, and the third guide pins 45 can also be externally connected with a circuit, so that the designed tact switch has five guide pins.

In this embodiment, as shown in fig. 3, the upper cover portion 21 is provided with a button hole through which the driving button 6 can extend, one of the upper cover portion 21 and the top of the base 1 is provided with two fixing posts 7, and the other of the upper cover portion 21 and the top of the base 1 is provided with two insertion holes 27 which are in insertion fit with the fixing posts 7, so that the upper cover portion 21 is reliably mounted at the bottom of the base 1 through the cooperation of the fixing posts 7 and the insertion holes 27, and the metal cover plate 2 and the base 1 are kept fixed in relative mounting positions. And, metal covering plate 2 is including the shaping two side baffle portions 22 on upper cover portion 21 both sides, two side baffle portions 22 include respectively with two location feet 25 that connect the foot 24 syntropy to extend, and block and be in two spacing beads 26 in the spacing groove of base 1 lateral wall, set up like this and make side baffle portion 22 reliably connect in base 1 lateral wall, when pasting dress welding to the product at last, insert two location feet 25 and two connection feet 24 respectively in the jack of circuit board, and weld fixture to improve the mounting structure intensity of light touch switch on the circuit board, installation stability is good.

As a preferred embodiment, a waterproof film is further disposed in the base and located between the driving button 6 and the spring structure, and the waterproof and dustproof performance between the driving button and the spring structure is improved through the waterproof film.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A five-foot touch switch comprises a base (1), a metal cover plate (2), a spring plate structure and a driving button (6), wherein the spring plate structure and the driving button (6) are arranged between the base (1) and the metal cover plate (2), and a conductive plate assembly (4) which is in matched contact with the spring plate structure is arranged in an inner cavity of the base (1); the method is characterized in that:

the side face of one side of the base (1) is a mounting contact surface (3) abutted to the circuit board, two yielding grooves (5) are formed between the two sides of the mounting contact surface (3) and the top of the base (1), the mounting contact surface (3) is provided with a baffle structure (31) which is formed by vertically extending towards the top direction of the base (1), and the baffle structure (31) is positioned between the two yielding grooves (5);

the metal cover plate (2) comprises an upper cover part (21) covering the top of the base (1), the baffle plate structure (31) is arranged higher than the upper cover part (21), the upper cover part (21) comprises a connecting edge (23) matched and abutted to the inner side of the baffle plate structure, and two connecting pins (24) which are formed at two ends of the connecting edge (23) and penetrate through one side of the abdicating groove (5);

the conducting sheet assembly (4) comprises a first pin structure (401) which is arranged on the installation contact surface (3) in an extending mode.

2. The five-foot tact switch according to claim 1, characterized in that: the baffle structure (31) inboard shaping has L shape step (32), connect limit (23) butt in on L shape step (32) to be the arc form and extend to its both ends and be connected with two connection feet (24).

3. The five-foot tact switch according to claim 1, characterized in that: the conducting sheet assembly (4) further comprises a second pin structure (402) which is arranged on the other side surface of the base (1) in an extending mode.

4. The five-foot tact switch according to claim 3, characterized in that: the conducting plate assembly (4) comprises a first conducting plate (41) horizontally arranged in the base (1) in a penetrating mode and two second conducting plates (42) arranged on two sides of the first conducting plate in parallel, and the two second conducting plates are formed through a connecting plate in an integrated structure.

5. The five-foot tact switch according to claim 4, characterized in that: one end of the first conducting strip is provided with a circular part, spherical contacts are formed on the circular part in a protruding and extending mode, and two rectangular contacts are oppositely arranged on the two second conducting strips; the section of the elastic sheet structure is of an arc-shaped structure, the elastic sheet structure and the spherical contact of the first conducting sheet are arranged oppositely up and down, and the peripheral sides of the elastic sheet structure are matched and abutted against the rectangular contacts of the two second conducting sheets.

6. The five-foot tact switch according to claim 5, characterized in that: the first conducting plate and the two second conducting plates are integrally embedded in the base (1) in an injection molding manner; the first guide pin structure (401) comprises a first guide pin (43) which is bent from the first conducting plate and extends to the installation contact surface (3), and two second guide pins (44) which are bent from the two second conducting plates (42) and extend to the installation contact surface (3), wherein concave portions suitable for containing the first guide pin (43) and the second guide pins (44) are arranged on the installation contact surface (3).

7. The five-foot tact switch according to claim 6, characterized in that: the second guide pin structure (402) comprises two third guide pins (45) which are respectively bent and extended from two second conductive plates (42) to the other side surface of the base (1), and the third guide pins (45) and the second guide pins (44) are respectively integrally formed at two ends of the second conductive plates.

8. The five-foot tact switch according to any one of claims 1 to 7, wherein: the upper cover part (21) is provided with a button hole for the driving button (6) to extend out, one of the top of the upper cover part (21) and the top of the base (1) is provided with at least one fixing column (7), and the other of the top of the upper cover part (21) and the top of the base (1) is provided with at least one insertion hole (27) which is in insertion fit with the fixing column (7).

9. The five-foot tact switch according to claim 8, characterized in that: the metal cover plate (2) comprises two side baffle parts (22) which are formed on two sides of the upper cover part (21), the two side baffle parts (22) respectively comprise two positioning pins (25) which extend in the same direction as the connecting pins (24), and two limiting bent edges (26) which are clamped in limiting grooves in the side wall of the base (1).

10. The five-foot tact switch according to claim 1, characterized in that: and a waterproof membrane positioned between the driving button (6) and the elastic sheet structure is also arranged in the base.