CN101472426A

CN101472426A - Fixing mechanism of printed circuit board and electronic product casing

Info

Publication number: CN101472426A
Application number: CNA2007101861525A
Authority: CN
Inventors: 千金山
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2007-12-27
Filing date: 2007-12-27
Publication date: 2009-07-01
Anticipated expiration: 2027-12-27
Also published as: CN101472426B

Abstract

The invention provides a fixing mechanism of a printed circuit board and an electronic product casing. An upward or downward bending part is formed on the edges of the printed circuit board; and the bending part and the electronic product casing are provided with buckling mechanisms which are matched with each other. Through the fixing mechanism, when the electronic product casing is subjected to external force, such as twisting, falling, pressing and the like, the PCB provided with the bending part can share more impact and external force, thereby avoiding the problems, such as casing cracking, irreversible deformation, damage to internal electronic parts, etc. In addition, the strength of the electronic product is increased; and metal fittings used for fixation can be reduced, thereby increasing the distribution area of an electronic device, optimizing the design of the electronic product casing, enlarging the space, reducing the thickness of casing materials and reducing the weight of a product.

Description

The fixed mechanism of a kind of printed circuit board (PCB) and electronic product casing

Technical field

The present invention relates to the fixed mechanism of a kind of printed circuit board (PCB) and electronic product casing.

Background technology

Printed circuit board (PCB) (PCB) is the basis of current electronic product, and it mainly acts on is fixing various elements and connecting circuit between each element is provided, and electronic devices and components generally are installed on the PCB of different sizes in the electronic equipment.

Currently marketed each electronic product, because current PCB manufacturing materials can't be crooked, the PCB of made is shaped as flat, its fixed form is that PCB perforate and casing screw column are fixed.With the mobile phone is example, its PCB sidewall and the tangent positioning and fixing of housing, in the tests such as reversing, fall, push of handset structure, this dull and stereotyped PCB can't share too much impact and external force, the distortion that cause housing fracture, can't recover, and problem such as internal electronic element damage.In addition, for reduce the problem that internal electronic element damages as far as possible, for the bigger assembly that is installed on the PCB, often to increase metal-ware and help fix, anti-ly shake to improve it, impact resistance, but, these metal-wares have taken PCB and have been used for the area of cloth spare, and increase product weight and cost, process for machining and manufacturing flow process that it is complicated, also can the yield of product be impacted, also make the limited space of PCB fail to obtain fully effectively utilization.

Summary of the invention

Embodiment of the invention technical problem to be solved is to provide the fixed mechanism of a kind of printed circuit board (PCB) and electronic product casing, be intended to solve existing electronic product casing and do the time spent being subjected to external force, dull and stereotyped PCB can't share too much impact and external force, the problem that causes housing fracture, the distortion that can't recover, internal electronic element to damage.

The embodiment of the invention is achieved in that the fixed mechanism of a kind of printed circuit board (PCB) and electronic product casing, and printed circuit board edge has kink up or down, has the buckle structure that cooperatively interacts on kink and the electronic product casing.

Technique scheme compared with prior art, because printed circuit board edge has kink, its by with electronic product casing on the buckle structure that cooperatively interacts that has be fixed on the electronic product casing, when electronic product casing is done the time spent in external force such as being reversed, fall, push, PCB with kink can share more impact and external force, can prevent consequent housing fracture, the distortion that can't recover, and the problem of internal electron original paper damage; And, because the increase of electronic product intensity, be used to help the use of the metal-ware of fixing to reduce, thereby electronic device cloth spare area is increased, optimize the design of electronic product casing, it is bigger to make it the space, reduce case material thickness, alleviate product weight.

Description of drawings

Fig. 1 is the perspective exploded view of printed circuit board (PCB) and electronic product casing in a preferred embodiment of the present invention;

Fig. 2 is the assembling schematic diagram of printed circuit board (PCB) shown in Figure 1 and electronic product casing.

Embodiment

In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with embodiment and accompanying drawing.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

As depicted in figs. 1 and 2, the printed circuit board (PCB) of a preferred embodiment of the present invention and the fixed mechanism of electronic product casing, wherein, printed circuit board (PCB) 1 edge has two kinks 11, two kinks 11 bend downwards along the edge on printed circuit board (PCB) 1 relative both sides to extend and form, and the bending angle of kink 11 can be 20 degree～90 degree as required.Have through hole 111 and draw-in groove 112 on each kink 11.

Electronic product casing 3 has four sidewalls 32 that surround rectangle, wherein, stretches out projection 321 that cooperates with through hole 111 on the printed circuit board (PCB) 1 and the fixture block 322 that fastens with draw-in groove 112 on the relative two side 32.In the present embodiment, this fixture block 322 is "T"-shaped, it has insertion section 3221 and is connected in the fastening part 3222 of insertion section 3,221 one ends, the other end of insertion section 3221 is connected on the housing 3, when printed circuit board (PCB) 1 is installed on the housing 3, insertion section 3221 can be inserted in the draw-in groove 112 on the kink 11, and fastening part 3222 then is arranged in a side of kink 11.

When being installed in above-mentioned printed circuit board (PCB) 1 on the electronic product casing 3, projection 321 on the housing 3 and fixture block 322 are inserted in the through hole 111 and draw-in groove 112 on the printed circuit board (PCB) 1 respectively, printed circuit board (PCB) 1 firmly is installed on the housing 3.Be appreciated that the through hole 111 on the kink 11 of above-mentioned printed circuit board (PCB) 1 also can be a groove.

Above-mentioned through hole 111, draw-in groove 112 are corresponding respectively with the quantity of projection 321, fixture block 322, and its quantity can increase and decrease as required.In addition, printed circuit board (PCB) 1 each edge, limit all can form kink 11, the bending up or down simultaneously of each kink 11, it also can be upwards bending of a part, another part bends downwards, at this moment, respective shapes is set on the electronic product casing 3 matches with kink 11.

In order further to strengthen the intensity of electronic product, in the present embodiment, also be provided with the reinforcement 323 that can be connected on the kink 11 on the sidewall 32 of electronic product casing 3.

The printed circuit board (PCB) of the embodiment of the invention and the fixed mechanism of electronic product casing can be used for multiple electronic product, owing to have kink 11 at printed circuit board (PCB) 1 edge, its by with the sidewall 32 of electronic product casing 3 on the buckle structure that cooperatively interacts that has be fixed on the electronic product casing 3, when electronic product casing 3 is being reversed, fall, external force such as push and do the time spent, printed circuit board (PCB) 1 with kink 11 can be shared more impact and external force, can prevent consequent housing fracture, the distortion that can't recover, and the problem of internal electronic element damage.Because the increase of electronic product intensity, be used to help the use of the metal-ware of fixing to reduce, thereby cloth spare area is increased, optimize the design of electronic product casing, it is bigger to make it the space, reduces case material thickness, alleviates product weight.

The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims

1, the fixed mechanism of a kind of printed circuit board (PCB) and electronic product casing is characterized in that, described printed circuit board edge has the kink of bending up or down, has the buckle structure that cooperatively interacts on described kink and the electronic product casing.

2, the fixed mechanism of printed circuit board (PCB) as claimed in claim 1 and electronic product casing is characterized in that, described electronic product casing is provided with the reinforcement that can be connected on the described kink.

3, the fixed mechanism of printed circuit board (PCB) as claimed in claim 1 and electronic product casing, it is characterized in that the described buckle structure that cooperatively interacts comprises the draw-in groove that is positioned on the described kink and is positioned on the described housing and can be arranged in the fixture block of described draw-in groove.

4, the fixed mechanism of printed circuit board (PCB) as claimed in claim 3 and electronic product casing, it is characterized in that, described fixture block is "T"-shaped, it has the insertion section and is connected in the fastening part of described insertion section one end, the other end of described insertion section is connected on the described housing, when described printed circuit board (PCB) was installed on the described housing, described insertion section was inserted in the draw-in groove on the described kink, and described fastening part is arranged in a side of described kink.

5, as the fixed mechanism of claim 1 or 3 described printed circuit board (PCB)s and electronic product casing, it is characterized in that the described buckle structure that cooperatively interacts comprises the through hole that is positioned on the described kink or groove and is positioned on the described housing and can inserts the projection of described through hole or groove.

6, the fixed mechanism of printed circuit board (PCB) as claimed in claim 1 and electronic product casing is characterized in that, described kink forms for extending along at least one edge bending of printed circuit board (PCB).

7, the fixed mechanism of printed circuit board (PCB) as claimed in claim 6 and electronic product casing is characterized in that, described kink forms along a plurality of edges bending extension of printed circuit board (PCB), and each kink is bending up or down simultaneously.

8, the fixed mechanism of printed circuit board (PCB) as claimed in claim 6 and electronic product casing is characterized in that, described kink forms along a plurality of edges bending extension of printed circuit board (PCB), and the part kink is bending upwards, and another part kink bends downwards.

As the fixed mechanism of claim 1,6,7 or 8 described printed circuit board (PCB)s and electronic product casing, it is characterized in that 9, the bending angle of described kink is 20 degree～90 degree.