CN219512984U - Patch conductive silicon rubber connector key with code nail structure - Google Patents

Abstract

The utility model relates to the technical field of electronic keys and discloses a patch conductive silicon rubber connector key with a code nail structure, which comprises a key body, an elastic cavity, a base, a code nail welding sheet and a conductor, wherein the conductor is arranged on the bottom surface of the key body, the upper periphery of the elastic cavity is connected with the lower part of the key body, the lower periphery of the elastic cavity is connected with the upper surface of the base, at least one group of corresponding sides of the upper surface of the base are respectively provided with a protruding limit strip, and the code nail welding sheet is bound and fixed on the adjacent side surface of the side with the limit strip on the base from the lower surface of the base. The mounting position of the code nail welding sheet is accurately determined, the welding quality is improved, and the product qualification rate is further improved.

Description

Patch conductive silicon rubber connector key with code nail structure

Technical Field

The utility model relates to the technical field of electronic keys, in particular to a patch conductive silicon rubber connector key with a code nail structure.

Background

In the electronic industry, various high-frequency and low-frequency signals, currents and data are usually required to be conducted and transmitted between different electronic elements or between different chip boards, and the elastic silica gel key is a very common electronic element for realizing interconnection and conduction and is widely applied to various subdivision fields of the electronic industry.

In the related art, when a silica gel key is produced, a metal frame is firstly manufactured, and then silica gel is injection-molded on the metal frame to form the silica gel key; the metal frame is used as an embedded part, and welding is formed on the surface of the silica gel key. However, as the metal frame is used as the embedded part, when the key is injection molded, the silica gel can impact the embedded part, so that the metal frame is displaced, the positions of welding feet of the injection molded silica gel key are shifted, and the product qualification rate of the silica gel key is reduced.

The utility model of China with the application number of CN202110820075.4 as 'leg binding equipment and a leg binding method' discloses a leg binding method, wherein a plurality of key bodies and connecting parts form a key assembly, pressing plates are used for pressing and fixing the key assembly on two sides of the key assembly, and then welding sheets are pressed on the key bodies in a binding mode, so that quick installation of the welding sheets is completed. However, since the same longitudinal row in the key assembly is provided with a plurality of key bodies and is fixed only by pressing plates at two sides, the fixed longitudinal row is too long, and the problem that a single key body cannot be bound accurately due to uneven tensioning of the longitudinal row length direction of a connecting part in the binding process of the plurality of key bodies, the position of a welding leg is deviated and the position of the welding leg cannot be bound accurately due to the deviation of the local binding position is avoided, and the product qualification rate of the silica gel keys is influenced, so that the high-speed combined production is not facilitated.

Meanwhile, the key in the prior art comprises a welding leg and a welding leg support, the welding leg is connected with the welding leg support, the welding leg support is embedded in the base, the welding leg and the welding leg support are preset in a die when the key is injection molded or vulcanized, and the welding leg, the welding leg support and the base are molded at one time. However, the welding leg support is required to be installed and fixed, and the welding leg support are required to be embedded in the die when the key is injection molded or vulcanized, so that the manufacturing difficulty of the key is high, and the production efficiency is low.

The utility model of the application number CN202111541018.9 named as 'key' discloses a key, wherein a welding leg is fixed on a key base in a binding mode, but as the bottom surface of a welding plate of the key protrudes out of the bottom surface of the key, the parallel coplanarity of the welding surfaces cannot be ensured, the phenomenon of virtual welding of the welding point is easy to cause, and the welding quality cannot be fully ensured.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problem solved by the utility model is how to solve the accurate positioning of the welding leg position and further improve the key welding quality.

In order to solve the technical problems, the technical scheme adopted by the utility model is that the patch conductive silicon rubber connector key with the code nail structure comprises a key body, an elastic cavity, a base, code nail welding pieces and a conductor, wherein the conductor is arranged on the bottom surface of the key body, the upper periphery of the elastic cavity is connected with the lower part of the key body, the lower periphery of the elastic cavity is connected with the upper surface of the base, at least one group of corresponding sides of the upper surface of the base are respectively provided with a protruding limit strip, and the code nail welding pieces are upwards bound and fixed on the adjacent side surfaces of the sides, with the limit strips, of the base from the lower surface of the base.

The code nail welding piece comprises a welding part, a connecting part and a clamping fixing part, wherein two ends of the connecting part are respectively connected with the welding part and the clamping fixing part, the welding part is contacted with the lower surface of the base, and the clamping fixing part is clamped on the upper surface of the base.

In order to prevent the cold joint of the code nail welding piece on the lower surface of the base from influencing the welding quality, as an improvement of the utility model, a lower groove which is suitable for the contact part of the welding part and the lower surface of the base is arranged, and the depth of the lower groove is equal to the thickness of the welding part, so that the bottom surface of the welding part is flush with the lower surface of the base to ensure the sufficient contact of the welding material.

In order to prevent the base from being deformed by extrusion caused by penetration and clamping of the base at the joint of the clamping and fixing part and the connecting part, as an improvement of the utility model, through holes are formed at the penetrating parts at two ends of the lower groove.

Further, in order to ensure the flatness of the clamping fixing portion and the upper surface of the base after clamping, as an improvement of the utility model, the upper surface of the base corresponding to the lower groove is provided with an upper groove with a depth equal to the thickness of the clamping fixing portion.

In order to reduce the air resistance when the key body is pressed down, the bottom surface of the base is provided with an exhaust channel so as to smoothly exhaust the air when the elastic cavity is pressed down, and reduce the pressing resistance of the air pressure to the key body.

Compared with the prior art, the utility model has the advantages that the installation position of the code nail welding sheet is accurately determined, the welding quality is improved, and the product qualification rate is further improved.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a cross-sectional view of a tack weld tab;

FIG. 3 is a top view of the structure of the present utility model;

FIG. 4 is a top view of FIG. 3 with the code nail weld tab omitted;

fig. 5 is a bottom view of fig. 3 after omitting the code nail welding sheet

FIG. 6 is a cross-sectional view A-A of FIG. 3;

FIG. 7 is a sectional view B-B of FIG. 3;

FIG. 8 is a cross-sectional view of FIG. 3 with the code nail weld tab omitted.

Detailed Description

The following description of the embodiments of the utility model is given by way of illustration and not limitation.

Fig. 1 shows a patch conductive silicon rubber connector key of a code nail structure, which comprises a key body 1, an elastic cavity 2, a base 3, a code nail welding sheet 4 and a conductor 5, wherein the conductor 5 is arranged on the bottom surface of the key body 1, the lower part of the key body 1 is connected with the upper surface of the base 3 through the upper periphery of the elastic cavity 2, at least one group of corresponding edges of the upper surface of the base 3 are respectively provided with a convex limit strip 31, and the code nail welding sheet 4 binds and fixes the adjacent edge surfaces of the sides with the limit strips on the base 3 from the lower surface of the base 3.

As shown in fig. 2, the tack welding piece 4 includes a welding portion 41, a connecting portion 42, and a clamping and fixing portion 43, wherein both ends of the connecting portion 42 are respectively connected with the welding portion 41 and the clamping and fixing portion 43, the welding portion 41 is in contact with the lower surface of the base 3, and the clamping and fixing portion 43 is clamped on the upper surface of the base 3.

As shown in fig. 5, in order to prevent the cold joint of the code nail welding piece 4 on the lower surface of the base 3 from affecting the welding quality, as an improvement of the present utility model, a lower groove 32 is provided at the contact point of the welding part 41 and the lower surface of the base 3, and the depth of the lower groove 32 is equal to the thickness of the welding part 41 so that the bottom surface of the welding part 41 is flush with the lower surface of the base 3 to ensure the sufficient contact of the welding material.

As shown in fig. 5, in order to prevent the base 3 from being deformed by the penetration and the pressing of the base 3 at the connection portion of the clamping fixing portion 43 and the connection portion 42, as a modification of the present utility model, through holes 33 are formed at the penetration portions at both ends of the lower groove 32.

Further, as shown in fig. 4, in order to ensure the flatness of the clamping fixing portion 43 after clamping with the upper surface of the base 3, as an improvement of the present utility model, the upper surface of the base 3 corresponding to the lower groove 32 is provided with an upper groove 34 having a depth equal to the thickness of the clamping fixing portion 43.

As shown in fig. 1 and 5, in order to reduce air resistance when the key body 1 is pressed down, an air exhaust channel 35 is provided on the bottom surface of the base 3 to smoothly exhaust air when the elastic cavity 2 is pressed down, so as to reduce pressing resistance of air pressure to the key body 1.

According to the working principle of the utility model, the upper surface of the base is provided with the group of limit strips, and the base is firmly and well fixed by the locating structure which is arranged on the stamping die and is matched with the limit strips in the process of binding the code nail welding sheets, so that the displacement deformation of the base in the aspect of being vertical to the limit strips in the stamping process is prevented, and the accurate installation position of the code nail welding sheets is ensured. The groove is formed in the lower surface of the base to ensure the flush of the welding surface and ensure the welding quality, and through the arrangement of the through holes at the two ends of the groove, the base is prevented from being deformed by extrusion of the base due to penetration and clamping of the base, and the accurate positioning of the mounting position of the welding piece of the code nail is further ensured.

Compared with the prior art, the utility model has the advantages that the installation position of the code nail welding sheet is accurately determined, the welding quality is improved, and the product qualification rate is further improved.

The embodiments of the present utility model have been described in detail above with reference to the drawings and examples, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model.

Claims (6)

1. The utility model provides a paster conductive silicon rubber connector button of code nail structure, its characterized in that, including button body (1), elasticity cavity (2), base (3), code nail welding piece (4) and electric conductor (5), button body (1) bottom surface is equipped with electric conductor (5), connect on the elasticity cavity (2) peripheral button body (1) lower part and its lower peripheral connection base (3) upper surface, at least a set of limit that corresponds of base (3) upper surface is provided with convex spacing (31) respectively, code nail welding piece (4) follow base (3) lower surface is upwards bound and is fixed adjacent limit surface of the avris that has spacing on base (3).

2. The patch conductive silicone rubber connector key of a code nail structure according to claim 1, wherein the code nail welding piece (4) comprises a welding part (41), a connecting part (42) and a clamping fixing part (43), the two ends of the connecting part (42) are respectively connected with the welding part (41) and the clamping fixing part (43), the welding part (41) is in contact with the lower surface of the base (3), and the clamping fixing part (43) is clamped on the upper surface of the base (3).

3. The patch conductive silicone rubber connector key of a code nail structure according to claim 2, characterized in that a lower groove (32) is arranged at a contact position of the welding part (41) and the lower surface of the base (3), and the depth of the lower groove (32) is equal to the thickness of the welding part (41).

4. A patch conductive silicone rubber connector key of a code nail structure according to claim 3, wherein through holes (33) are provided at penetrating positions at both ends of the lower groove (32).

5. The patch conductive silicone rubber connector key of a code nail structure according to claim 3, wherein an upper groove (34) with a depth equal to the thickness of the clamping fixing portion (43) is formed on the upper surface of the base (3) corresponding to the lower groove (32).

6. The code nail structured patch conductive silicone rubber connector key according to claim 1, wherein the bottom surface of the base (3) is provided with an air exhaust channel (35).