CN211378666U

CN211378666U - Upper and lower cladding type welding structure of metal shielding cover of wireless communication module

Info

Publication number: CN211378666U
Application number: CN201922456901.2U
Authority: CN
Inventors: 朱磊
Original assignee: Changzhou Inbo Technology Co ltd
Current assignee: Changzhou Inbo Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-28
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a cladding formula welded structure about wireless communication module metal shielding cover, set up the metal shielding cover directly over the PCB board including PCB board and lock, spacing distance between metal shielding cover and the PCB board, the lateral wall lower part of metal shielding cover is equipped with the concave part, the inner wall of concave part forms the first face of weld of metal shielding cover, and the lateral wall that is located the metal shielding cover of concave part below forms the second face of weld of metal shielding cover, and the PCB board top surface that is located metal shielding cover lateral wall below forms the face of weld of PCB board, and when the welding is fixed, soldering tin fills into the concave part and extends to the face of weld of PCB board via the concave part along the second face of weld of metal shielding cover, cladding formula welded structure about forming. The utility model discloses a metal shielding cover guarantees effectively eating tin volume on the one hand with the surrounding type welded structure of PCB board, cladding formula structure about on the other hand forms to firmly weld the metal shielding cover on the PCB board.

Description

Upper and lower cladding type welding structure of metal shielding cover of wireless communication module

Technical Field

The utility model belongs to the technical field of electronic equipment, a welded structure of metal shielding cover and PCB board among the electronic equipment is related to, cladding formula welded structure about wireless communication module metal shielding cover specifically is provided.

Background

As the development of electronic circuits tends to be more and more miniaturized and integrated, the requirements of circuit modules for reliability have also increased. In a common circuit module, in order to improve the shielding capability of electromagnetic radiation, a metal shielding case is used for faraday cage shielding, so that the matching structure of the metal shielding case and the PCB is a link of very traditional Chinese medicine, which involves breaking the welding yield of the product possibly influenced by poor welding of the metal shielding case. In the prior art, molten soldering tin is dripped at the bottom of the side wall of a multi-pass direct metal shielding cover, so that the metal shielding cover is connected with a PCB in a welding manner. However, such a structure is likely to cause problems such as poor soldering (i.e., a small contact area of solder), weak soldering, and loosening or falling off of the metal shield.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an upper and lower cladding formula welded structure of wireless communication module metal shielding cover that cladding formula just can guarantee fully eating tin volume from top to bottom.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a cladding formula welded structure about wireless communication module metal shield cover, includes that PCB board and lock set up the metal shield cover directly over the PCB board, spacing distance between metal shield cover and the PCB board, the lateral wall lower part of metal shield cover is equipped with the concave part, the inner wall of concave part forms the first face of weld of metal shield cover, and the lateral wall of the metal shield cover that is located the concave part below forms the second face of weld of metal shield cover, and the PCB board top surface that is located metal shield cover lateral wall below forms the face of weld of PCB board, and when the welding is fixed, soldering tin fills the concave part and extends to the face of weld of PCB board via the concave part along the second face of weld of metal shield cover, forms cladding formula welded structure from top to bottom.

Furthermore, an included angle alpha is formed between the bottom wall of the concave part and the horizontal direction, and the included angle alpha is more than or equal to 0 and less than 90 degrees.

Further, the concave part is formed by a notch arranged on the outer side wall of the metal shielding cover.

Furthermore, the concave part is formed by bending the side wall of the metal shielding cover inwards, and the concave part is along the horizontal direction.

Compared with the prior art, the utility model discloses the technological effect who gains does: the utility model discloses a cladding formula welded structure about wireless communication module metal shielding cover sets up the clearance between notch and metal shielding cover bottom and the PCB board on the metal shielding cover, and soldering tin forms the card in the notch and establishes at the intraoral convex part, then downwardly extending to the clearance fills into the clearance, guarantees effectively the tin volume of eating on the one hand, cladding formula structure about on the other hand forms to firmly weld the metal shielding cover on the PCB board.

Drawings

Fig. 1 is a schematic structural view of an upper and lower cladding type welding structure of a metal shielding case of a wireless communication module according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

Fig. 3 is a schematic structural view of an upper and lower cladding type welding structure of a metal shielding case of a wireless communication module according to another embodiment of the present invention.

Fig. 4 is an enlarged schematic view of fig. 1 at B.

The reference numbers in the figures are: the PCB comprises a PCB board, 2 a metal shielding cover, 201 a concave part and 3 soldering tin.

Detailed Description

The utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The utility model discloses a concrete embodiment is shown in fig. 1 and fig. 2, a cladding formula welded structure about wireless communication module metal shield cover, set up metal shield cover 2 directly over PCB board 1 including PCB board 1 and lock, spacing distance between metal shield cover 2 and the PCB board, the lateral wall lower part of metal shield cover 2 is equipped with concave part 201, the inner wall of concave part 201 forms the first face of weld of metal shield cover, the lateral wall that is located the metal shield cover of concave part 201 below forms the second face of weld of metal shield cover, the face of weld that is located the PCB board top surface formation PCB board of metal shield cover lateral wall below, when welded fastening, soldering tin 3 fills the concave part and extends to the face of weld of PCB board via the concave part along the second face of weld of metal shield cover, cladding formula welded structure about forming.

The sidewall recess 201 of the metal shielding case of the present embodiment is formed by a notch opened on the outer sidewall of the metal shielding case, and the bottom wall of the recess 201 forms an included angle α with the horizontal direction, and the included angle α is preferably 0 °.

Further, the recesses 201 may be intermittent and spaced apart in the horizontal direction; the grooves may be continuous, that is, formed by grooves opened in the horizontal direction.

Referring to fig. 3 and 4, the recess 201 is formed by bending the side wall of the metal shielding case inward, and the recess 201 is in the horizontal direction, and the included angle α is preferably 0 °.

When the bottom surfaces of the side walls of the metal shielding covers are positioned on the same horizontal plane, the metal shielding covers and the PCB are spaced at intervals, and then the gaps are formed.

In another case, a groove is formed in the bottom end face of the side wall of the metal shielding cover, the groove is in the wall thickness direction of the side wall, and the gap is formed between the top wall of the groove and the P side wall plate.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. The utility model provides a cladding formula welded structure about wireless communication module metal shielding cover which characterized in that: including metal shielding cover (2) of PCB board (1) and lock setting on PCB board (1), be equipped with the clearance between metal shielding cover (2) and the PCB board, the lateral wall lower part of metal shielding cover (2) is equipped with concave part (201), the inner wall of concave part (201) forms the first face of weld of metal shielding cover, and the lateral wall that is located the metal shielding cover of concave part (201) below forms the second face of weld of metal shielding cover, and the PCB board top surface that is located metal shielding cover lateral wall below forms the face of weld of PCB board, and during the welding is fixed, soldering tin (3) fill into the concave part and extend to the face of weld of PCB board and fill via the concave part along the second face of weld of metal shielding cover in the clearance, form upper and lower cladding formula welded structure.

2. The upper and lower cladding type welding structure of the metal shielding case of the wireless communication module according to claim 1, wherein: the bottom wall of the concave part (201) forms an included angle alpha with the horizontal direction, and the included angle alpha is more than or equal to 0 and less than 90 degrees.

3. The upper and lower cladding type welding structure of the metal shielding case of the wireless communication module according to claim 1, wherein: the concave part (201) is formed by a notch arranged on the outer side wall of the metal shielding cover.

4. The upper and lower cladding type welding structure of the metal shielding case of the wireless communication module according to claim 1, wherein: the concave part (201) is formed by bending the side wall of the metal shielding cover inwards, and the concave part (201) is along the horizontal direction.