CN211412587U

CN211412587U - Anti-overflow rubber check ring

Info

Publication number: CN211412587U
Application number: CN201922297930.9U
Authority: CN
Inventors: 朱泽瑞; 朱荣惠
Original assignee: WUXI YOYONG SENSING Inc
Current assignee: WUXI YOYONG SENSING Inc
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-09-04
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a retaining ring is glued to anti-overflow relates to sensor processing technology field, and a retaining ring is glued to anti-overflow, including the retaining ring body that has hollow cavity, the top of retaining ring body is provided with the anti-overflow and glues the apron, the slotted hole is glued to the point of having seted up on the anti-overflow gluey apron. The check ring has the advantages of simple structure, low production cost and good use effect, and can effectively improve the working efficiency and precision.

Description

Anti-overflow rubber check ring

Technical Field

The utility model belongs to the technical field of the sensor processing technique and specifically relates to a retaining ring is glued to anti-overflow.

Background

The pressure sensor chip is bonded and routing after being mounted on the ceramic plate, after routing is completed, Coating (a solid continuous film obtained by Coating once is used for protection, insulation, decoration and the like) operation is required when the chip, the gold wire and the bonding pad are subjected to anti-corrosion protection, a check ring is required to be bonded to keep the shape of Coating glue, and after the glue is injected into the check ring and is aged, jelly-like glue is formed to fill the inner space of the check ring to play a role in protection.

When the conventional check ring is used, after the Coating glue is aged, a part of the check ring overflows, the periphery of the check ring is unevenly distributed, the check ring is insufficiently contacted with the inner wall, gaps and the like occur, when the check ring works in a corrosive environment for a long time, a corrosive medium can permeate into a chip along the inner wall, and a gold wire and a bonding pad are corroded, so that the output of a sensor is distorted or damaged; the existing check ring is completely manually installed when being installed in the ceramic plate, the precision of the assembly position is poor, and the efficiency is low.

Therefore, there is an urgent need for an improvement to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anti-overflow glue retaining ring, aiming at the defects of the prior art, the anti-overflow glue cover plate is arranged, so that glue can not overflow the retaining ring during glue dispensing, and the glue is unevenly distributed; through setting up the sucking disc and adsorbing the region, can realize the purpose of automatic sucking disc absorption installation, can effectively improve work efficiency and precision.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

the utility model provides an anti-overflow glues retaining ring, includes retaining ring body 1 that has hollow cavity, the top of retaining ring body is provided with anti-overflow and glues apron 2, set up some glue slotted holes 3 on the anti-overflow and glue apron 2.

Preferably, the cross-section of retaining ring body 1 becomes fillet quadrangle, overflow prevention is glued apron 2 with 1 inner wall of retaining ring matches, the glue dispensing slotted hole 3 becomes the octagon, is located the axle center position of overflow prevention is glued apron 2, and four hypotenuses of octagon become interior arc, with the fillet of retaining ring body 1 corresponds overflow prevention is glued 2 regional constitutions sucking disc adsorption zone 4.

Preferably, the retainer ring body 1 and the anti-overflow glue cover plate 2 are made of plastic materials and are integrally formed by injection molding.

Preferably, the outer diameter of the dispensing slot 3 is smaller than the inner diameter of the retainer ring body 1.

Advantageous effects

The utility model provides an anti-overflow glue retaining ring, which can ensure that glue can not overflow the retaining ring to cause uneven glue distribution when dispensing; through setting up the sucking disc adsorption zone territory, can realize the purpose of automatic sucking disc absorption installation. The check ring has the advantages of simple structure, low production cost and good use effect, and can effectively improve the working efficiency and precision.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a first perspective view of an anti-overflow rubber retainer ring according to the present invention;

FIG. 2 is a second perspective view of the anti-overflow rubber retainer ring of the present invention;

fig. 3 is a bottom view of the anti-overflow rubber retainer ring of the present invention;

FIG. 4 is a top view of an anti-overflow rubber retainer ring according to the present invention;

FIG. 5 is a top view of the anti-overflow rubber retainer ring of the present invention;

fig. 6 is a side view of the installation of the anti-overflow rubber retainer ring of the present invention.

Graphic notation:

1-retainer ring body, 2-glue overflow prevention cover plate, 3-glue dispensing slotted hole, 4-sucker adsorption area, 5-ceramic plate, 6-silk screen printing, 7-bonding glue and 8-Coating glue.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the glue overflow prevention check ring comprises a check ring body 1 with a hollow cavity, wherein an glue overflow prevention cover plate 2 is arranged at the top end of the check ring body, and a glue dispensing slot hole 3 is formed in the glue overflow prevention cover plate 2.

Specifically, as shown in fig. 3 and 4, the cross-section of the retainer ring body 1 is a fillet quadrangle, the glue overflow preventing cover plate 2 is matched with the inner wall of the retainer ring body 1, the glue dispensing slot hole 3 is an octagon and is located at the axis position of the glue overflow preventing cover plate 2, and four inclined edges of the octagon form an inner arc shape, and the four inclined edges of the octagon correspond to the fillet of the retainer ring body 1, and the glue overflow preventing cover plate 2 region forms a suction cup adsorption region 4.

In this embodiment, the retainer ring body 1 and the glue overflow preventing cover plate 2 are made of plastic materials and are integrally injection molded; the outer diameter of the dispensing slot hole 3 is smaller than the inner diameter of the retainer ring body 1.

As shown in fig. 5 and 6, coating adhesive 7 on the screen printing 6 of the ceramic plate 5, then accurately placing the retainer body 1 in the area of the adhesive 7, and then drying the retainer body by using a high-temperature oven, so that the adhesive 6 becomes solid; and finally, injecting a proper amount of Coating glue 8 into the hollow cavity of the retainer ring body 1 along the dispensing slot holes 3, so that corrosive media can be effectively prevented from permeating into the surface of the chip along the inner wall of the retainer ring, and the gold wires and the bonding pads are corroded.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an anti-overflow retaining ring, its characterized in that: the glue overflow preventing cover plate is characterized by comprising a check ring body (1) with a hollow cavity, wherein the top end of the check ring body is provided with a glue overflow preventing cover plate (2), and a glue dispensing slotted hole (3) is formed in the glue overflow preventing cover plate (2).

2. The glue overflow prevention check ring according to claim 1, characterized in that: the cross-section of retaining ring body (1) becomes fillet quadrangle, prevent overflow glue apron (2) with retaining ring body (1) inner wall matches, glue dispensing slotted hole (3) becomes the octagon, is located the axle center position of preventing overflow glue apron (2), and four hypotenuses of octagon become the inner arc, with the fillet of retaining ring body (1) corresponds prevent overflow glue apron (2) regional sucking disc adsorption zone (4) that constitutes.

3. The glue overflow prevention check ring according to claim 1, characterized in that: the check ring body (1) and the glue overflow prevention cover plate (2) are made of plastic materials and are integrally formed by injection molding.

4. The anti-overflow rubber retainer ring according to claim 2, characterized in that: the outer diameter of the dispensing slotted hole (3) is smaller than the inner diameter of the retainer ring body (1).