CN219832476U - Sinking plate tact switch with small occupied space - Google Patents

Abstract

The utility model discloses a sinking plate tact switch with small occupied space, which comprises a cover plate, a base and a button, wherein a concave cavity is formed in the base, a first clamping piece and a second clamping piece are arranged in the concave cavity and are integrally connected through injection molding, the cover plate is detachably connected with the base, the button is arranged in the inner cavity, an elastic reed is arranged in the inner cavity, the middle part of the elastic reed is contacted with the button and acts on the button to enable the button to be contacted with the cover plate, and the distance between the elastic reed and the side wall of the concave cavity is set to be a distance for accommodating deformation of the elastic reed. According to the utility model, the first clamping piece and the second clamping piece are fixedly connected with the base, so that the connection reliability is enhanced, the whole volume is reduced, the gap between the elastic reed and the side wall of the concave cavity is reduced, the contact form is not changed in the process of transporting, dropping and using the product, and the product has the advantages of good shock resistance, good contact form, high space utilization rate and the like.

Description

Sinking plate tact switch with small occupied space

Technical Field

The utility model relates to the technical field of tact switches, in particular to a heavy plate tact switch with small occupied space.

Background

Tact switches, also known as push-button switches, occur at the earliest in japan as: when the sensitive switch is used, the switch function is closed and switched on under the condition of meeting the operating force to press the switch in the operating direction, and when the pressure is withdrawn, the switch is switched off, and the internal structure is switched on and off by the stress change of the metal reed. The touch switch is widely applied in the aspect of household appliances due to the advantages of small size and light weight, along with the development of the intelligent household appliance industry, the number of internal electronic components is gradually increased to meet the requirements of remotely controlling the household appliances through a mobile phone, different practical functions can be derived, the design of a circuit board gradually tends to be compact, the space inside a product is gradually reduced, the traditional touch switch is suitable for the requirements of the intelligent furniture industry, the advantages of miniaturization, high space utilization rate and long service life of the product are required to be developed, the modes of reducing the size of a reed and a clamping piece, changing the material of the reed or increasing the hardness, reducing the plastic wall thickness of a base and the like are generally adopted, however, the problems of life reduction, poor shock resistance and the like caused by unstable fixation of the reed and the clamping piece and contact point offset caused by vibration are brought about, and therefore, the inventor makes a beneficial design to find a method for solving the problems, and the technical scheme to be introduced below is generated under the background.

Disclosure of Invention

The utility model aims to overcome the defects of the traditional tact switch design and provides a product with good shock resistance, good contact form and high space utilization rate.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a small heavy board of occupation space dabs switch, includes apron, base, button, the inside cavity that is equipped with of base, the cavity is equipped with first fastener, second fastener to through moulding plastics an organic whole connection, the apron passes through detachable and pedestal connection, the button sets up in the inner chamber, the inner chamber is equipped with the spring reed, the middle part and the button contact of spring reed to act on the button, make button and apron contact, the distance between spring reed and the cavity lateral wall sets up to the distance that holds the spring reed and warp.

Preferably, the bottom of the inner cavity is provided with an injection molding through hole, the injection molding through hole is contacted with the first clamping piece and the second clamping piece, and the bottom of the inner cavity is provided with a boss and is contacted with the elastic reed.

Preferably, the first clamping piece is provided with a first contact and is contacted with the elastic reed, the second clamping piece is provided with a second contact and is contacted with the middle part of the elastic reed, and the first clamping piece and the second clamping piece are provided with at least two leading-out pins and are arranged on the side wall and the bottom of the base.

Preferably, the middle part of the elastic reed is arranged in an arch shape.

Preferably, the top of base is equipped with two at least location convex hulls, the bottom of base is equipped with the breach, the both sides of breach are equipped with the stopper, the both sides of base are equipped with the lug.

Preferably, the apron top is equipped with the through-hole of stepping down, the button sets up in the through-hole of stepping down to the protrusion through-hole of stepping down, the apron is equipped with two at least installation through-holes, and sets up in the location convex closure, the both sides of apron are equipped with first extension board to set up in the base both sides, with the lug contact, first extension board is equipped with the second extension board, and sets up between the stopper, first extension board is equipped with the fastening foot.

Preferably, the detachable arrangement is a snap-fit connection.

The beneficial effects are that:

compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the first clamping piece and the second clamping piece are connected with the base in an injection molding integrated connection mode, so that the hidden trouble of unstable connection caused by the reduction of the wall thickness of the base is eliminated, the connection reliability of the first clamping piece and the second clamping piece with the base is enhanced, the base design can be flattened, the whole volume of a product is reduced, and the product has the advantage of high space utilization rate.

(2) According to the utility model, the contact form is ensured by limiting the moving range of the elastic reed, the problems of displacement and contact failure of the elastic reed caused by the conditions of transportation, use and falling of a product are avoided, the falling and shock resistance of the product are improved, when downward pressure is applied to the button to deform the elastic reed, the side surface of the elastic reed stretches to be in contact with the side wall of the concave cavity, so that the elastic reed generates small-amplitude calibration displacement, the center of the middle part and the center of the second contact are in a center line, the contact is ensured to be neutral, the service life of the contact is prolonged, and the spring has the advantages of good shock resistance and good contact form.

Drawings

FIG. 1 is a schematic diagram of a heavy plate tact switch with small occupied space;

FIG. 2 is a schematic diagram of a heavy plate touch switch with small occupied space;

FIG. 3 is a schematic side sectional view of a touch switch with a sinking plate with small occupied space according to the present utility model;

FIG. 4 is an exploded view of a small footprint heavy plate tact switch of the present utility model;

FIG. 5 is a top view of a base of a small footprint heavy plate tact switch in accordance with the present utility model;

the correspondence between the reference numerals and the component names in the drawings is as follows:

reference numerals: 1. a cover plate; 2. a base; 3. a button; 4. a first clamping piece; 5. a second clamping piece; 6. an elastic reed; 7. a pin;

11. a relief through hole; 12. mounting through holes; 13. a first extension plate; 14. a second extension plate; 15. fastening the foot;

21. a cavity; 22. injection molding the through hole; 23. a boss; 24. positioning the convex hull; 25. a notch; 26. a limiting block; 27. a bump;

41. a first contact;

51. and a second contact.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 to 5, a heavy plate tact switch with small occupied space comprises a cover plate 1, a base 2 and a button 3, wherein a concave cavity 21 is formed in the base 2, the concave cavity 21 is provided with a first clamping piece 4 and a second clamping piece 5 and is integrally connected with the base 2 through injection molding, the cover plate 1 is detachably connected with the base 2, the button 3 is arranged in the concave cavity 21, the concave cavity 21 is provided with an elastic reed 6, the middle part of the elastic reed 6 is contacted with the button 3 and acts on the button 3 to enable the button 3 to be contacted with the cover plate 1, and the distance between the elastic reed 6 and the side wall of the concave cavity 21 is set to be a distance for accommodating deformation of the elastic reed 6;

it should be noted that the bottom of the cavity 21 is provided with an injection through hole 22, the injection through hole 22 is contacted with the first clamping piece 4 and the second clamping piece 5, and the bottom of the cavity 21 is provided with a boss 23 and contacted with the elastic reed 6; the injection molding equipment fills plastics into the mold through the injection molding through hole 22, so that the first clamping piece 4 and the second clamping piece 5 are fixedly connected with the base 2, the boss 23 is matched with the first contact 41, and the two are matched to play a role in supporting and lifting the elastic reed 6, so that the occurrence of skew condition is prevented;

it should be noted that, the first clamping piece 4 is provided with a first contact 41 and contacts with the elastic reed 6, the second clamping piece 5 is provided with a second contact 51 and contacts with the middle part of the elastic reed 6, the first clamping piece 4 and the second clamping piece 5 are provided with at least two leading-out pins 7 and are arranged on the side wall and the bottom of the base 2, the first contact 41 contacts with the side edge of the elastic reed 6 for a long time, after the middle part of the elastic reed 6 is deformed, the first contact 41 contacts with the second contact 51, and the tapping pin 7 is conveniently connected with a circuit board, and the leading-out pins 7 are arranged on the side wall and the bottom of the base 2 to provide two connecting contact modes;

it should be noted that the middle part of the elastic reed 6 is provided with an arch shape, and the arch shape provides acting force for the elastic reed 6 and also determines the service life of the product;

it should be noted that, the top of the base 2 is provided with at least two positioning convex hulls 24, the bottom of the base 2 is provided with a notch 25, two sides of the notch 25 are provided with limiting blocks 26, two sides of the base 2 are provided with convex blocks 27, the positioning convex hulls 24 are matched with the mounting through holes 12 to provide positioning function, the notch 25 is matched with the second extension plate 14 for use, the limiting blocks 26 are matched with the second extension plate 14 for use, and the convex blocks 27 are matched with the first extension plate 13 for use;

it should be noted that, the top of the cover plate 1 is provided with a yielding through hole 11, the button 3 is arranged at the yielding through hole 11 and protrudes out of the yielding through hole 11, the cover plate 1 is provided with at least two mounting through holes 12 and is arranged at the positioning convex hull 24, the two sides of the cover plate 1 are provided with a first extension plate 13 and are arranged at the two sides of the base 2 and contacted with the convex block 27, the first extension plate 13 is provided with a second extension plate 14 and is arranged between limiting blocks 26, the first extension plate 13 is provided with fastening pins 15, the yielding through hole 11 is matched with the button 3 for use, the button 3 protrudes out to increase the recognition speed and accurately set the range of a key body, the first extension plate 13 is contacted with the convex block 27 in a bending manner, and a certain rebound occurs due to the bending rebound of a metal material after bending, therefore, the convex block 27 is added to keep a certain gap between the first extension plate 13 and the side of the base 2, the first extension plate 13 is convenient to increase the bending angle so as to adapt to the rebound, the connection stability of the cover plate 1 and the base 2 is ensured, the same, the notch 25 plays a role of facilitating the increase of the angle of the second extension plate 14, the fastening of the fastening plate 15, the limiting blocks 26 plays a role of preventing the second extension plate 14 from increasing the fastening plate and the connection stability of the button 1, the left and right extension plate 14 from being contacted with the button 3, the fastening pins and the button 3, and the elastic plate 3 play a role in the effect of preventing the effect of the connection stability of the button 1 and the bending plate is prevented from being contacted with the middle plate 3 and the fastening plate and has the stability;

it should be noted that, detachable sets up to buckle connection, and buckle connection mode is, bends first extension board 13 through mechanical equipment and handles, makes its laminating lug 27, and mechanical equipment bends second extension board 14, makes it fix between stopper 16, and buckle connection is convenient to the maintenance and the dismouting of tact switch.

The principle of use of the utility model will now be described as follows:

the button 3 is pressed downwards, so that the button 3 sinks to squeeze the middle part of the elastic reed 6, the arch-shaped stress is deformed and kept in an energy storage state, the elastic reed 6 extends to the periphery and touches the side wall of the concave cavity 21, the elastic reed 6 is subjected to small-amplitude calibration displacement, the middle part and the center of the second contact 51 form a central line, the contact is ensured to be opposite to neutral, when the middle part of the elastic reed 6 is contacted with the second contact 51, the first contact 41 and the second contact 51 are in a conducting state, and the tact switch is in a closing state.

The pressure applied to the button 3 disappears, the middle part of the elastic reed 6 releases the counterforce and returns to the original state, the acting force pushes the button 3 to reset, the middle part of the elastic reed 6 leaves the second contact 51, the connection between the first clamping piece 4 and the second clamping piece 5 is interrupted, and the tact switch is in an off state.

Through the design scheme, the product has the advantages of good shock resistance, good contact form and high space utilization rate.

The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims (7)

1. The utility model provides a heavy board tact switch that occupation space is little which characterized in that: including apron (1), base (2), button (3), inside cavity (21) that is equipped with of base (2), cavity (21) are equipped with first fastener (4), second fastener (5) to through moulding plastics integrated into one piece, apron (1) are connected with base (2) through detachable, button (3) set up in cavity (21), cavity (21) are equipped with spring reed (6), the middle part and the button (3) contact of spring reed (6) to act on button (3), make button (3) and apron (1) contact, the distance between spring reed (6) and cavity (21) lateral wall sets up to the distance that holds spring reed (6) and warp.

2. The small footprint heavy plate tact switch of claim 1, wherein: the bottom of cavity (21) is equipped with through-hole (22) of moulding plastics, through-hole (22) of moulding plastics are contacted with first fastener (4), second fastener (5), the bottom of cavity is equipped with boss (23) to contact with spring reed (6).

3. The small footprint heavy plate tact switch of claim 2, wherein: the first clamping piece (4) is provided with a first contact (41) and is contacted with the elastic reed (6), the second clamping piece (5) is provided with a second contact (51) and is contacted with the middle part of the elastic reed (6), and the first clamping piece (4) and the second clamping piece (5) are provided with at least two leading-out pins (7) and are arranged on the side wall and the bottom of the base (2).

4. A small footprint heavy plate tact switch according to claim 3, characterized in that: the middle part of the elastic reed (6) is arranged in an arch shape.

5. The small footprint heavy plate tact switch of claim 4, wherein: the top of base (2) is equipped with two at least location convex hulls (24), the bottom of base (2) is equipped with breach (25), the both sides of breach (25) are equipped with stopper (26), the both sides of base (2) are equipped with lug (27).

6. The small footprint rocker tact switch of claim 5 wherein: the utility model discloses a cover plate, including apron (1), button (3), locating convex hull (24), apron (1), base (2), lug (27) and lug (27) contact, button (3) set up in giving way through-hole (11) to the protrusion gives way through-hole (11), apron (1) is equipped with two at least installation through-holes (12), and sets up in locating convex hull (24), the both sides of apron (1) are equipped with first extension board (13), and set up in base (2) both sides, first extension board (13) are equipped with second extension board (14) and set up between stopper (26), first extension board (13) are equipped with fastening foot (15).

7. The small footprint heavy plate tact switch of claim 1, wherein: the detachable connection is in a buckling connection.