CN216626283U

CN216626283U - PCB assembly

Info

Publication number: CN216626283U
Application number: CN202122694946.0U
Authority: CN
Inventors: 陈功; 刘传瑞
Original assignee: Shenzhen Gencotech Communication Equipment Co ltd
Current assignee: Shenzhen Gencotech Communication Equipment Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-05-27
Anticipated expiration: 2031-11-04

Abstract

The application provides a PCB subassembly, including casing, PCB board and the first electric connector of setting on the casing, be equipped with the recess on the casing, the PCB board is installed in the recess, and first electric connector is connected with participating in the electricity of PCB board to it is spacing each other with participating in. The PCB board is installed in the recess of casing, and the casing can play the guard action to the PCB board. The first electric connector is arranged on the shell and is electrically connected with the pins of the PCB, so that the pins of the PCB are electrically connected with the external circuit through the first electric connector. When the first electric connector is electrically connected with the pin of the PCB, the first electric connector can be limited with the pin of the PCB, so that the electric connection between the PCB and the first electric connector is more stable, and the PCB can be more stably installed in the groove. Compare in current PCB subassembly, the PCB subassembly of this application has simple structure, easily assembly, the assembly back PCB board can form stable being connected with first electric connector, and the PCB board is more firm with being connected of casing.

Description

PCB assembly

Technical Field

The present application belongs to the technical field of printed circuit boards, and more particularly, to a PCB assembly.

Background

The PCB, which is called a printed circuit board in chinese, is an important electronic component, a support for electronic components, and a carrier for electrical interconnection of electronic components. It is called a "printed" circuit board because it is made using electronic printing.

Almost every kind of electronic equipment, as small as electronic watches, calculators, as large as computers, communication electronics, military weaponry systems, has electronic components such as integrated circuits, and printed boards are used to electrically interconnect the various components. The printed circuit board consists of an insulating bottom plate, a connecting lead and a welding disc for assembling and welding electronic elements, and has double functions of a conductive circuit and the insulating bottom plate. The circuit can replace complex wiring to realize electrical connection among elements in the circuit, thereby simplifying the assembly and welding work of electronic products, reducing the wiring workload in the traditional mode and greatly lightening the labor intensity of workers; and the volume of the whole machine is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved.

But because the PCB body is small in volume, the electric connection pins of the PCB are fine, and the welding points are not easy to align during assembly; after welding, the problem of unstable welding is easily caused at the welding point. And during assembly, the PCB is not well fixed, so that the PCB is easily deviated under the influence of factors such as vibration and the like, and the assembly efficiency of the PCB is greatly influenced.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a PCB subassembly to solve the PCB assembly difficulty that exists among the prior art, PCB assembly unstable, connect not firm technical problem.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the PCB assembly comprises a shell, a PCB and a first electric connector arranged on the shell, wherein a groove is formed in the shell, the PCB is installed in the groove, and the first electric connector is electrically connected with a pin of the PCB and is mutually limited with the pin.

As a further improvement of the above technical solution:

optionally, the pins are female pins, and the first electrical connector has a male connection end electrically connected with the female pins and limiting each other with the female pins.

Optionally, the cross section of the concave pin is semicircular, and the cross section of the convex connecting end is semicircular.

Optionally, the first electrical connector has a groove connection end for connecting with and spacing from a pin of an external circuit.

Optionally, the first electrical connector penetrates through the housing in a thickness direction of the housing.

Optionally, the number of the first electrical connectors is multiple, and the multiple first electrical connectors are arranged at intervals along the side of the shell.

Optionally, the depth of the groove is smaller than the thickness of the PCB board.

Optionally, the groove is in clearance fit with the PCB board.

Optionally, the PCB assembly further includes a cover detachably connected to the housing, and the PCB board is disposed between the housing and the cover.

Optionally, the cover is provided with a plug, the housing is provided with a plug hole corresponding to the plug, and the plug is plugged in the plug hole, so that the cover is detachably connected with the housing.

The PCB assembly provided by the application has the beneficial effects that:

the application provides a PCB subassembly, including casing, PCB board and the first electric connector of setting on the casing, be equipped with the recess on the casing, the PCB board is installed in the recess, and first electric connector is connected with participating in of PCB board is electric to with participating in spacing each other.

The PCB board is installed in the recess of casing, and the casing can play the guard action to the PCB board. The first electric connecting pieces are arranged on the shell and electrically connected with the pins of the PCB, so that the pins of the PCB are electrically connected with an external circuit through the first electric connecting pieces. When the first electric connecting piece is electrically connected with the pin of the PCB, the first electric connecting piece can also limit the position of the pin of the PCB, so that the PCB is pre-positioned relative to the first electric connecting piece, and the subsequent soldering operation between the pin and the first electric connecting piece is convenient. The pins of the first electric connector and the PCB are mutually limited to enable the connection between the first electric connector and the PCB to be more stable, and the PCB can be more stably mounted in the groove. The mutual limiting modes of the first electric connecting piece and the plug pin can be the inserting limiting mode, the clamping limiting mode, the nesting limiting mode and the like of the first electric connecting piece and the plug pin.

Compare in current PCB subassembly, the PCB subassembly of this application has simple structure, easily assembly, assembly back PCB board can form stable being connected with first electric connector, and the PCB board is more firm with being connected of casing.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic view of a first three-dimensional structure of a PCB assembly provided in the present application;

fig. 2 is a first perspective view of a housing of a PCB assembly provided herein;

fig. 3 is a schematic second perspective view of a housing of a PCB assembly provided in the present application

Fig. 4 is a schematic diagram of a second perspective structure of a PCB assembly provided in the present application;

fig. 5 is a schematic diagram of a third perspective structure of a PCB assembly provided in the present application;

fig. 6 is a schematic perspective view of a cover of a PCB assembly provided herein;

FIG. 7 is a first cross-sectional structural view of a PCB assembly provided by the present application;

fig. 8 is a second cross-sectional structural diagram of a PCB assembly provided in the present application.

Wherein, in the figures, the respective reference numerals:

1. a housing; 11. A groove;

2. a PCB board; 21. A pin;

3. a first electrical connection; 31. A raised connection end;

32. a groove connection end; 4. A cover;

41. a plug-in connector; 5. Inserting holes;

6. a second electrical connection.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the 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 thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 and 2, the present embodiment provides a PCB assembly including a case 1, a PCB board 2 and a first electrical connector 3 disposed on the case 1, the case 1 is provided with a groove 11, the PCB board 2 is mounted in the groove 11, and the first electrical connector 3 is electrically connected to a pin 21 of the PCB board 2 and is spaced from the pin 21.

The PCB 2 is arranged in the groove 11 of the shell 1, and the shell 1 can protect the PCB 2. The first electrical connector 3 is disposed on the housing 1 and electrically connected to the pins 21 of the PCB board 2, so that the pins 21 of the PCB board 2 are electrically connected to an external circuit through the first electrical connector 3. When the first electrical connector 3 is electrically connected with the pin 21 of the PCB 2, the first electrical connector 3 can also limit the position of the pin 21 of the PCB 2, so that the PCB 2 is pre-positioned relative to the first electrical connector 3, thereby facilitating the subsequent soldering operation between the pin 21 and the first electrical connector 3. The first electric connector 3 and the pin 21 of the PCB 2 are limited to each other, so that the connection between the first electric connector and the pin is more stable, and the PCB 2 can be more stably installed in the groove 11. The mutual limiting mode of the first electric connector 3 and the pin 21 can be a plugging limiting mode, a clamping limiting mode, a nesting limiting mode and the like of the first electric connector 3 and the pin 21.

Compare in current PCB subassembly, the PCB subassembly of this application has simple structure, easily assembly, assembly back PCB board 2 can form stable being connected with first electric connector 3, and PCB board 2 is more firm with being connected of casing 1.

As shown in fig. 1 and 2, in one embodiment the pins 21 are female pins and the first electrical connector 3 has a male connection end 31, the male connection end 31 being electrically connected to and spaced from the female pins.

When the PCB 2 is mounted in the recess 11, the female pins are connected to the male connection terminals 31 of the first electrical connector 3. When the concave pin is connected with the convex connecting end 31, the mutual limiting effect can be achieved, the situation that the pin 21 and the first electric connecting piece 3 deviate or are misplaced is avoided, and the connection stability between the pin 21 and the first electric connecting piece 3 is improved.

In other embodiments, the pins 21 may also be male pins, the first electrical connector 3 having a female connection end adapted to the male pins. The male pins are electrically connected to the female connection ends of the first electrical connector 3 and are spaced from each other.

As shown in fig. 1 and 2, in one embodiment, the female pins are semi-circular in cross-section and the male connection ends 31 are semi-circular in cross-section.

In the preferred embodiment, the semicircular female pins are the same shape and size in cross section as the semicircular male connection ends 31.

In other embodiments, the cross section of the concave pin is square, V-shaped, U-shaped, etc.; the protruding connection end 31 may also be square, V-shaped, U-shaped, etc.

As shown in fig. 2, in one embodiment the first electrical connector 3 has a groove connection end 32, the groove connection end 32 being intended to be connected to and to be mutually spaced from the pins of the external circuit.

The groove connection terminal 32 is disposed on the outer edge of the first electrical connector 3, so that the pins of the external circuit can be connected with the groove connection terminal 32.

In another embodiment, the first electrical connector 3 may also have raised connection ends capable of mating with external circuit groove-type pin connections.

As shown in fig. 2 and 3, in one embodiment, the first electrical connector 3 penetrates the housing 1 in the thickness direction of the housing 1.

The first electrical connector 3 penetrates through the housing 1 along the thickness direction of the housing 1, so that end faces and side walls of two sides of the first electrical connector 3 are exposed outside the housing 1, and the first electrical connector 3 is conveniently connected with pins of an external circuit.

As shown in fig. 1 and 2, in one embodiment, the number of the first electrical connectors 3 is plural, and the plural first electrical connectors 3 are arranged at intervals along the side of the housing 1.

The plurality of first electrical connectors 3 are arranged in a one-to-one correspondence with the positions of the pins 21 of the PCB 2, so that the first electrical connectors 3 are connected with the pins of the PCB 2.

As shown in fig. 1 and 2, in one embodiment, the first electrical connectors 3 are arranged at intervals on two opposite sides of the housing 1.

In other embodiments, the plurality of first electrical connectors 3 may also be arranged at intervals on any or each side of the housing 1.

It will be understood that only one first electrical connector 3 on the housing 1 is intended to fall within the scope of the present application. When there is only one first electrical connector 3 on the housing 1, the first electrical connector 3 may be arranged on either side of the housing 1.

As shown in fig. 2 and 7, in one embodiment, the depth of the recess 11 is less than the thickness of the PCB board 2.

After the PCB 2 is mounted in the groove 11, the PCB 2 will partially protrude from the groove 11 because the depth of the groove 11 (H in fig. 7) is less than the thickness of the PCB 2 (H in fig. 7). The PCB 2 of the protruding portion increases the soldering area between the pin 21 and the bump connecting terminal 31, making the soldering between the pin 21 and the bump connecting terminal 31 easier.

In a preferred embodiment, the depth H of the recess 11 is half the thickness H of the PCB board 2.

In one embodiment, the recess 11 is clearance fit with the PCB board 2. Preferably, the side length of the groove 11 is 0.1mm-0.2mm larger than the corresponding side length of the PCB 2.

The cross sectional area of the PCB 2 is smaller than that of the groove 11, and the PCB 2 and the groove 11 can be in clearance fit, so that the PCB 2 can be conveniently assembled and disassembled.

As shown in fig. 4, 5 and 8, in one embodiment, the PCB assembly further includes a cover 4, the cover 4 is detachably coupled with the housing 1, and the PCB board 2 is disposed between the housing 1 and the cover 4.

The PCB 2 is arranged between the shell 1 and the cover 4, and the shell 1 and the cover 4 jointly protect the PCB 2.

In one embodiment, the cover 4 is made of metal. The cover 4 made of metal can function as a conductive member, and the ground is provided by the cover 4.

As shown in fig. 6 and 2, in one embodiment, the cover 4 is provided with a plug 41, the housing 1 is provided with a plug hole 5 corresponding to the plug 41, and the plug 41 is plugged into the plug hole 5, so that the cover 4 and the housing 1 are detachably connected.

In another embodiment, the plug 41 can be disposed on the housing 1, and the plug hole 5 is correspondingly disposed on the cover 4.

In other embodiments, the cover 4 and the housing 1 may be detachably connected by means of a snap connection, a nesting connection, or a screw connection.

In one embodiment, as shown in fig. 2, a second electrical connector 6 is also provided on the housing 1.

The second electric connector 6 is a metal strip arranged at the edge of the shell 1, and the plug hole 5 is arranged on the metal strip. The plug 41 of the cover 4 is detachably connected to the plug hole 5 of the second electrical connector 6, so that the second electrical connector 6 is electrically connected with the cover 4, and the second electrical connector 6 also has the function of grounding.

The PCB subassembly of this application is when the assembly, at first corresponds PCB board 2's concave type pin and first electric connector 3's protruding link 31, then packs PCB board 2 into recess 11 on casing 1, and is spacing each other through concave type pin and protruding link 31, pre-positioning PCB board 2's position.

Subsequently, the female pins of the portion of the PCB 2 protruding the recess 11 are soldered to the bump terminals 31 of the first electrical connector 3. Because the PCB 2 forms prepositioning in the groove 11, the concave pin and the convex connecting end 31 do not need to be dislocated or separated in the soldering process, so that the soldering process is more stable, and the soldering effect is better.

And finally, covering the plug-in connector 41 of the cover 4 on the shell 1 corresponding to the plug-in hole 5 on the shell 1, and covering the PCB 2 between the cover 4 and the shell 1 to finish the assembly of the PCB assembly.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A PCB assembly, characterized by comprising a shell (1), a PCB (2) and a first electric connector (3) arranged on the shell (1), wherein a groove (11) is arranged on the shell (1), the PCB (2) is installed in the groove (11), and the first electric connector (3) is electrically connected with a pin (21) of the PCB (2) and is mutually limited with the pin (21).

2. The PCB assembly of claim 1, wherein the pins (21) are female pins, the first electrical connector (3) having male connection ends (31), the male connection ends (31) being electrically connected to and spaced from the female pins.

3. The PCB assembly of claim 2, wherein the female pin is semi-circular in cross-section and the male connection end (31) is semi-circular in cross-section.

4. A PCB assembly according to claim 2, wherein the first electrical connector (3) has a groove connection end (32), the groove connection end (32) being adapted to connect with and locate with a pin of an external circuit.

5. A PCB assembly according to claim 1, wherein the first electrical connector (3) penetrates the housing (1) in a thickness direction of the housing (1).

6. A PCB assembly according to claim 1, wherein the first electrical connectors (3) are plural in number, the plural first electrical connectors (3) being arranged at intervals along a side of the housing (1).

7. A PCB assembly according to claim 1, wherein the depth of the recess (11) is less than the thickness of the PCB board (2).

8. A PCB assembly according to claim 1, wherein the recess (11) is clearance fitted to the PCB board (2).

9. A PCB assembly as in any of claims 1 to 8, further comprising a cover (4), the cover (4) being detachably connected to the housing (1), the PCB board (2) being arranged between the housing (1) and the cover (4).

10. A PCB assembly according to claim 9, wherein the cover (4) is provided with a plug connector (41), the housing (1) is provided with a plug hole (5) corresponding to the plug connector (41), and the plug connector (41) is plugged into the plug hole (5) so that the cover (4) and the housing (1) are detachably connected.