CN211240507U

CN211240507U - Thermoplastic elastic rubber shell for PCB (printed circuit board)

Info

Publication number: CN211240507U
Application number: CN201921922106.1U
Authority: CN
Inventors: 李世雄; 萧铿城; 刘新华; 龙永书
Original assignee: Perfect Group Holdings Ltd
Current assignee: Perfect Group Holdings Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-08-11
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a PCB thermoplastic elastomer shell, which comprises a PCB, wherein a shell is injected on the PCB, a buckling groove is formed around the top end of the shell, a groove communicated to the top surface of the PCB is formed on the upper surface of the shell, a power supply interface is arranged in the groove, and the power supply interface is arranged on the top surface of the PCB; the utility model discloses novel structure adopts thermoplastic elastomer to wrap up electron device or PCB ground through injection moulding realization, avoids the process of manual assembly rubber ring or glue dripping, provides production efficiency, reduces the cost of labor. Meanwhile, the appearance and quality stability of the product can be improved.

Description

Thermoplastic elastic rubber shell for PCB (printed circuit board)

Technical Field

The utility model belongs to the technical field of the development of the PCB board and specifically relates to an elasticity rubber casing is moulded to PCB board heat.

Background

The development of economy obviously improves the living standard of people, and the abundant people have higher and higher requirements on electronic consumer goods. Waterproof and dustproof properties are no longer the attributes of professional electronic products, and common electronic consumer products also start to have the waterproof and dustproof properties and are relatively popular in price; the existing waterproof measures are realized by waterproof rubber rings or glue dripping. The waterproof rubber ring needs to be disassembled into two parts or more, so that the rubber ring can be installed and is realized through a fastening design, but the method cannot be applied to small-sized products and wearing products. The stability and the repeatability of the design operation of the glue dripping water are poor, and the labor cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

The utility model provides a PCB board thermoplastic elastomer shell, includes the PCB board, and the injection molding has the casing on the PCB board, and the shaping all around of top of casing has the lock groove, the higher authority shaping of casing has the recess that communicates to PCB board top surface, is equipped with the power interface in the recess, and the power interface is installed on the top surface of PCB board.

Further, the shell is made of thermoplastic elastomer.

Furthermore, the thermoplastic elastomer adopts TPE or TPR with good fluidity (MFI value is higher than 30g/10min and molding temperature is lower), and the hardness is 60-70A.

Furthermore, a nylon reinforced sheet with the thickness of 0.2mm is covered on the joint of the PCB and the shell.

Furthermore, the top surface of the power supply interface is lower than the top surface of the groove.

Furthermore, four sides of the top surface of the shell are all formed with chamfers.

Furthermore, the two sides of the power supply interface are provided with positioning ports for preventing error installation.

Furthermore, a circular positioning hole is formed in the PCB.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses novel structure adopts thermoplastic elastomer to wrap up electron device or PCB ground through injection moulding realization, avoids the process of manual assembly rubber ring or glue dripping, provides production efficiency, reduces the cost of labor. Simultaneously, the appearance and the quality stability of the product can be improved

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

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 these drawings without inventive exercise.

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

fig. 2 is a schematic structural diagram of the housing of the present invention.

Wherein: 1. the shell, 2, PCB board, 3, circular locating hole, 4, power interface, 5, lock groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but 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.

Referring to fig. 1 and 2, in an embodiment of the present invention, a thermoplastic elastomer shell for a PCB board includes a PCB board 2, a housing 1 is injection molded on the PCB board 2, a fastening groove 5 is formed around the top end of the housing 1, a groove communicated to the top surface of the PCB board 2 is formed on the top surface of the housing 1, a power jack 4 is disposed in the groove, and the power jack 4 is mounted on the top surface of the PCB board 2.

The shell 1 is made of thermoplastic elastomer, the thermoplastic elastomer is thermal elastomer TPE or TPR with good fluidity (MFI value is higher than 30g/10min and molding temperature is low), and the hardness is 60-70A.

The joint of the PCB board 2 and the shell 1 is covered with a nylon reinforced sheet with the thickness of 0.2mm, so that the electronic device is prevented from being damaged by the injection molding pressure and temperature of the elastomer.

The four sides that the shaping has the top surface of mistake proofing locating hole and casing 1 on the both sides of power interface 4 all make up and have the chamfer and all be favorable to installing the lock, and circular locating hole 3 on the PCB board 2 can guarantee the steady of in-process PCB board 2 of moulding plastics.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a PCB board thermoplastic elastomer shell, includes the PCB board, its characterized in that: the PCB board is provided with a shell in an injection molding mode, the periphery of the top end of the shell is provided with a buckling groove in a molding mode, the upper surface of the shell is provided with a groove communicated to the top surface of the PCB board in a molding mode, a power supply inserting port is arranged in the groove, and the power supply inserting port is installed on the top surface of the PCB board.

2. The thermoplastic elastomer casing for PCB board as claimed in claim 1, wherein: the shell is made of thermoplastic elastomer.

3. The thermoplastic elastomer casing for PCB board as claimed in claim 1, wherein: the joint of the PCB and the shell is covered with a nylon reinforced sheet with the thickness of 0.2 mm.

4. The thermoplastic elastomer casing for PCB board as claimed in claim 1, wherein: the top surface of the power supply interface is lower than the top surface of the groove.

5. The thermoplastic elastomer casing for PCB board as claimed in claim 1, wherein: four sides of the top surface of the shell are all formed with chamfers.

6. The thermoplastic elastomer casing for PCB board as claimed in claim 1, wherein: and positioning ports for preventing wrong installation are formed on two sides of the power supply socket.

7. The thermoplastic elastomer casing for PCB board as claimed in claim 1, wherein: and a circular positioning hole is formed in the PCB.