CN201289627Y

CN201289627Y - Backboard

Info

Publication number: CN201289627Y
Application number: CNU2008201895080U
Authority: CN
Inventors: 赵立刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-02
Filing date: 2008-09-02
Publication date: 2009-08-12
Anticipated expiration: 2018-09-02

Abstract

The utility model relates to a back plate for fixing a computer main board and supporting a thermal module and a multi-core SOCKET CPU module. In order to solve the problem that the strength of the back plate is reduced when the back plate has a plurality of excavated notches without materials and is made very small, the back plate comprises reinforcing webs corresponding to the distribution positions or protrusion heights of electronic components or the pin solder joints thereof arranged on the main board. The back plate is characterized in that the outer edges of the contact section of the back plate and the PCB main board bonded with each other extend outwards to form the reinforcing webs in such a manner that a portion of the outer edges are recessed downwards, and not more than two notches are excavated outwards.

Description

Backboard

Technical field

The utility model relates to the fixing computer main board and is used to support the backboard of heat radiation module and multinuclear heart SOCKET CPU module.

Background technology

SOCKET CPU is contained in the front of computer main board, computer main board back side correspondence position is equipped with backboard, its function is to have enough strength support that heat radiation module and SOCKET CPU module are installed on the one hand, is the rigidity that fixing is strengthened the PCB mainboard on the other hand, prevents the flexural deformation of PCB mainboard.Be coupling Intel, AMD three nuclears, four nuclears and the powerful performance of multinuclear core CPU more more than four nuclears, can a series of electronic devices and components of more inductance, electric capacity, resistance or the like be set than the monokaryon CPU epoch on the corresponding computer mainboard, these electronic devices and components bodies and its stitch solder joint can form the protrusion of protruding certain altitude with respect to the PCB surface, at this moment backboard be provided with do not have fully more than two places material the entity volume that hollows out breach and backboard do lessly, with prevent protrusion and backboard the interference generation.The result who does like this reduces the strength and stiffness of backboard significantly, even the function of forfeiture backboard, can not satisfy the request for utilization to backboard.

The utility model content

The utility model to solve entity volume that backboard hollows out breach or backboard in setting do the problem that reduces significantly of less back strength and stiffness.

For addressing the above problem, the utility model provides backboard, its be provided with the PCB surface on the indentation that matches of protrusion distributing position height extend and strengthen web, it is characterized in that, the local indentation downwards of the outer side edges of backboard and PCB surface applying contact portion stretches out and forms quantity and be no less than one reinforcement web, and backboard outwards hollows out breach quantity with the surperficial periphery part that contacts of PCB and is no more than two.

The reinforcement web is that the outer side edges of backboard and PCB surface contact portion is local low downwards dented, maintain a rational spacing apart from PCB, with avoid with the PCB surface on the contacting of protrusion, outwards rationally extend the entity volume that has increased backboard simultaneously, form the reinforcement web, thereby increased the strength and stiffness of backboard.

Description of drawings

Fig. 1 is a synoptic diagram of the present utility model.

Fig. 2 is that the A of Fig. 1 is to view.

Fig. 3 is a synoptic diagram of the present utility model.

Fig. 4 is that the B of Fig. 3 is to view.

Fig. 5 is a synoptic diagram of the present utility model.

Fig. 6 is that the C of Fig. 5 is to view.

Fig. 7 is a synoptic diagram of the present utility model.

Fig. 8 is that the D of Fig. 7 is to view.

Embodiment

As Fig. 1,2 backboard, its middle part is provided with pit 1, pit 1 central authorities 5 are hollowed out, it is that 2 part outwards hollows out breach 2 that the periphery that backboard contacts with the PCB mainboard is provided with quantity, it is 2 reinforcement web 3 that the outer side edges of backboard and PCB mainboard applying contact portion is provided with the stretch out quantity that forms of local indentation downwards, be used to avoid with the PCB surface on the contacting of protrusion.

Provided another kind of SOCKET CPU backboard as Fig. 3,4, it is provided with many reinforcements 4, central authorities 5 are hollowed out, it is 4 reinforcement web 3 that the outer side edges of backboard and PCB mainboard applying contact portion is provided with the stretch out quantity that forms of local indentation downwards, be used to avoid with the PCB surface on the contacting of protrusion.

Provided another kind of SOCKET CPU backboard as Fig. 5,6, central authorities 5 are hollowed out, it is that 2 part outwards hollows out breach 2 that the periphery that backboard contacts with the PCB mainboard is provided with quantity, it is 2 reinforcement web 3 that the outer side edges of backboard and PCB mainboard applying contact portion is provided with the stretch out quantity that forms of local indentation downwards, be used to avoid with the PCB surface on the contacting of protrusion.Its middle part does not have pit and reinforcement.

Provided another kind of SOCKET CPU backboard as Fig. 7,8, central authorities 5 are hollowed out, it is that 2 part outwards hollows out breach 2 that the periphery that backboard contacts with the PCB mainboard is provided with quantity, it is 2 reinforcement web 3 that the outer side edges of backboard and PCB mainboard applying contact portion is provided with the stretch out quantity that forms of local indentation downwards, be used to avoid with the PCB surface on the contacting of protrusion.Its middle part does not have pit, but is provided with four reinforcements 4.

Claims

1. backboard, be provided with the PCB mainboard on the indentation that matches of protrusion distributing position height strengthen web (3), it is characterized in that the local indentation downwards of the outer side edges of backboard and PCB mainboard applying contact portion stretches out to form and strengthens web (3), there is the outside breach (2) that hollows out backboard periphery part.

2. backboard according to claim 1 is characterized in that, the described breach (2) that hollows out is two.

3. backboard according to claim 1 and 2 is characterized in that, described reinforcement web (3) is more than one.