CN204044711U - A kind of four mouthfuls of hard disk backboards - Google Patents

Abstract

The utility model provides a kind of four mouthfuls of hard disk backboards, belong to hard disk backboard field, its structure comprises plate body, power connector, control chip and four hard disk SAS interfaces, control chip is arranged on the center-right position of plate body, hard disk SAS interface is separately positioned on the plate body of control chip both sides, described power connector is arranged on the position, center of plate body, and keep symmetrical with the distance of the hard disk SAS interface needing pulling load current, make the power distribution of each hard disk SAS interface even, described control chip is arranged on the sidepiece of power connector.The power distribution of each SAS interface is more relatively uniform than universal design like this, because power supply causes dish risk greatly to reduce not.

Description

A four-port hard disk backplane

technical field

The utility model relates to the field of hard disk backboards, in particular to a four-port hard disk backboard, which avoids the risk that hard disks cannot be recognized due to insufficient power supply.

Background technique

With the rapid increase in the number of current user environments, the number and capacity of hard disks configured in a single server have increased significantly, so the demand for backplanes has also increased. The design and quality control of hard disk backplanes have become an important factor affecting server An important concern for overall machine performance and stability.

Generally, the hard disk backplane is composed of a hard disk power connector, a hard disk SAS interface and a control chip. In order to facilitate plugging and unplugging operations, the general connector interface will be placed on the edge of the circuit board. However, for the power connector, if it is placed on the edge of the circuit board, it will cause the power supply voltage drop of some SAS interfaces to be too large, and there is a risk that the hard disk cannot be recognized due to insufficient power supply, which will cause bad sectors on the hard disk and cause unnecessary loss.

Contents of the invention

The purpose of this utility model is to solve the above problems, to provide a four-port hard disk backplane, with a new design method of the power connector, the connector of the power input end is placed in the center of the circuit board, and it is kept in line with the needs The distance between the SAS ports that pull the current is symmetrical, so that the power distribution of each SAS port is relatively uniform than that of the general design, and the risk of disk failure caused by insufficient power is greatly reduced.

The technical solution adopted by the utility model to solve its technical problems:

The utility model mainly includes a board body, a power connector, a control chip and four hard disk SAS interfaces. The power connector is arranged at the center of the board body, and the distance between the SAS interface of the hard disk that needs to pull current is kept symmetrical, so that the power distribution of each SAS interface of the hard disk is even, and the control chip is arranged on the power connector. side.

Preferably, the four hard disk SAS interfaces can be arranged on the same straight line, and every two groups form a group, and each group is respectively arranged on the boards on both sides of the power connector. the

Place the power connector at the center of all hard disk SAS ports so that the corresponding hard disk SAS ports are symmetrical about the center of the power connector.

The intentional effect brought by the utility model:

The utility model solves the risk of hard disk failure caused by the large difference in the voltage of each interface by placing the power connector symmetrically relative to the SAS interface of the hard disk. The design is reasonable, easy to use, and evenly distributed. Disk problem, the effect is remarkable.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Figure 1 is a schematic structural diagram of a universal four-port backplane design.

Fig. 2 is a structural schematic diagram of the improved design of the utility model.

Among them, 1. Power connector, 2. Control chip, 3. Hard disk SAS interface, 4. Board body.

Detailed ways

As shown in FIG. 2 : a new four-port hard disk backplane, which includes a power connector 1 , a control chip 2 , four hard disk SAS interfaces 3 and a board body 4 . the

Including board body 4, power connector 1, control chip 2 and four hard disk SAS interfaces 3, the control chip 2 is set on the middle right position of the board body 4, and the four hard disk SAS interfaces 3 are set on the same straight line, Every two is a group, and each group is respectively arranged on the board body 4 on both sides of the power connector 1, and the power connector 1 is arranged at the very center of the board body 4, and kept in line with the hard disk that needs to pull the current The distance between the SAS interfaces 3 is symmetrical, so that the power distribution of each hard disk SAS interface 3 is uniform, and the control chip 2 is arranged on the side of the power connector 1 .

Its implementation is as follows:

1. Arrange the components of 1.2.3 as shown in Figure 2;

2. Wiring and laying out the circuit board;

3. Connect the power cord to power interface 1, and connect the hard disk SAS interface to 3, so that 1 will supply power to 3 through this circuit board.

Compared with the traditional design, this design places the power connector 1 symmetrically in the center of the hard disk SAS interface 3, and the power supply voltage of each hard disk SAS interface 3 is relatively uniform, which solves the problem of insufficient power supply voltage caused by the power connector being placed on the edge of the circuit board. drop risk.

The four-port hard disk backplane of the utility model is simple and convenient to manufacture, and can be manufactured as shown in the accompanying drawings.

Except the technical characterictic described in the specification sheet, all are the known technologies of those skilled in the art.

Claims (3)

1. A four-port hard disk backplane, including a board body, a power connector, a control chip and four hard disk SAS interfaces, the control chip is set on the middle right of the board body, and the hard disk SAS interfaces are respectively set on both sides of the control chip On the board body, it is characterized in that the power connector is arranged at the very center of the board body, and the distance from the hard disk SAS interface that needs to pull current is kept symmetrical, so that the power distribution of each hard disk SAS interface is even, so The control chip is arranged on the side of the power connector. 2. The four-port hard disk backplane according to claim 1, characterized in that the four hard disk SAS interfaces are arranged on the same straight line, every two are a group, and each group is respectively arranged on the board body on both sides of the power connector superior. 3. The four-port hard disk backplane according to claim 1, wherein the power connector is placed at the center of all hard disk SAS interfaces, so that the corresponding hard disk SAS interfaces are symmetrical about the center of the power connector.