Patent ID: 12256525

DETAILED DESCRIPTION

In order to make the objects, the technical solutions and the advantages of the present application clearer, the embodiments of the present application will be further described in detail with reference to the particular embodiments and the drawings.

It should be noted that all of the expressions using “first” and “second” in the embodiments of the present application are intended to distinguish two different entities or different parameters that have the same names. It can be seen that “first” and “second” are merely for the convenience of the expression, and should not be construed as a limitation on the embodiments of the present application, which will not be explained in detail in the subsequent embodiments.

In order to achieve the above object, the first aspect of the embodiments of the present application provides an embodiment of a heat dissipating and power supply module that maintains the power-supply shelf within the range of the normal temperatures, to improve the working stability of the power-supply shelf.FIG.1shows a schematic flow chart of a heat dissipating and power supply module according to the present application.

The heat dissipating and power supply module, as shown inFIG.1, includes:at least one fan1, wherein the wind exiting side of the fan faces a power-supply shelf where the module is located;a first copper bar2of a U-shaped structure and half encircling the fan1; anda second copper bar3electrically connected to the two ends of the first copper bar2, wherein the first copper bar2and the second copper bar3combine to form a closed loop that fully encircles the fan1.

In some embodiments, the fan1is a fan that does not have a Hall element.

In some embodiments, the first copper bar2is electrically connected to an inputting line on one side of the U-shaped structure, and electrically connected to an outputting line on the other side of the U-shaped structure; and the second copper bar3diverts an electric current that flows from one side of the U-shaped structure to the other side.

In some embodiments, the first copper bar2is electrically connected to the inputting line via a transformer in a power module that converts a 220V alternating current into a 12V direct current.

In some embodiments, the first copper bar2is electrically connected to an outputting line via an electronic fuse board provided at a base-board-managing-controller board.

Some embodiments of the present application will be further described below according to the embodiments shown inFIG.2andFIG.3.

In an aspect, the embodiments of the present application are based on the Hall effect, and try to replace the original Hall-element fan module with a fan module that does not have a Hall element to the greatest extent, which may highly increase the rotational speed of the fan1. However, the critical components of the fan1such as the motor are still electromagnetically driven, and therefore the fan1that does not have a Hall element is still inevitably affected by the Hall effect to a certain extent.

In another aspect, the embodiments of the present application aim at reducing the practical magnetic induction intensity to reduce the affection by the Hall effect. The formula for calculating the magnetic induction intensity is B=K*I/r, wherein B is the magnetic induction intensity, K is a constant, I is the electric current flowing through the electromagnetic field, and r is the number of windings. Therefore, the reduction of the magnetic induction intensity may be realized by reducing the electric current. In the present application, the diverting branch circuit is added to the U-shaped copper bar to form an annular closed copper bar, whereby the electric current passing through each of the sides is reduced by a half, and the magnetic induction intensity is correspondingly reduced by a half.

Particularly, according to the demand on the heat dissipation of the power-supply shelf, the suitable module of the fan1that does not have a Hall element is selected. In the embodiments of the present application, the DBPK0428B2SY015 fan1of the AVC company is selected for the solution. The fan1, as compared with the VF40281BX-Q225-59H product of the SUNON company having a Hall element, behaves better in terms of the performances and the stability parameters. Moreover, the specification of the power-supply shelf is the electric current of 1600 A and the voltage of 12V at the full load. By comparingFIG.2andFIG.3(the cases that the second copper bar3does not exist and that the second copper bar3exists, i.e., the cases of U-shaped diverting and annular closed diverting), the magnetic fluxes detected at various positions of the fan1may be seen in the following table:

FanMagnetic flux of U-Magnetic flux of loop-positionshaped copper barshaped copper barStandardFan 1200 mg100mg<130 mgFan 2150 mg50mg<130 mgFan 3100 mg50mg<130 mgFan 450 mg100mg<130 mg

All of Fan1to Fan4are the fan1shown inFIG.1. It can be seen that, after the second copper bar3are added, the magnetic fluxes at the positions of Fan1and Fan2are reduced below the standards, and the magnetic induction intensities corresponding to the magnetic fluxes are reduced correspondingly. In this case, the variations of the rotational speeds of Fan1to Fan4with the duty cycles are as shown in the following table:

Rotational speed of fan (revolutions per minute)Set duty cycle of fanFan 1Fan 2Fan 3Fan 4100%3021030303300003015090%2752227777276492777780%2531625641255312500070%2205822813227272238860%1960720202198012020250%1666616901170941690140%1366714051139531398630%1023310452103271043420%683069766976700110%32433444330733510%0000

That demonstrates that all of Fan1to Fan4may normally operate.

It can be seen from the above embodiments that the heat dissipating and power supply module according to the embodiments of the present application, by using the technical solution in which the wind exiting side of the at least one fan1faces the power-supply shelf where the module is located: the first copper bar2is of a U-shaped structure and half encircles the fan1; and the second copper bar3is electrically connected to the two ends of the first copper bar2, wherein the first copper bar2and the second copper bar3combine to form a closed loop that fully encircles the fan1, may maintain the power-supply shelf within the range of the normal temperatures, to improve the working stability of the power-supply shelf.

It should be particularly noted that all of the steps according to the embodiments of the heat dissipating and power supply module stated above may be mutually mixed, replaced, added and deleted. Therefore, those reasonable arrangements, combinations and variations of the heat dissipating and power supply module should also fall within the protection scope of the present application, and the protection scope of the present application should not be limited to the embodiments.

In order to achieve the above object, the second aspect of the embodiments of the present application provides an embodiment of a power-supply shelf that maintains the power-supply shelf within the range of the normal temperatures, to improve the working stability of the power-supply shelf. The power-supply shelf includes:a power module, having a transformer, wherein the transformer is configured to convert a 220V alternating current from an inputting line into a 12V direct current;a base-board-managing-controller board, having an electronic fuse board, wherein the electronic fuse board is configured to transmit the 12V direct current with current limiting to an outputting line;at least one fan1, wherein the wind exiting side of the fan faces a power-supply shelf where the heat dissipating and power supply module is located;a first copper bar2of a U-shaped structure and half encircling the fan1; anda second copper bar3electrically connected to the two ends of the first copper bar2, wherein the first copper bar2and the second copper bar3combine to form a closed loop that fully encircles the fan1.

In some embodiments, the fan1is a fan that does not have a Hall element.

In some embodiments, the first copper bar2is electrically connected to the inputting line on one side of the U-shaped structure, and electrically connected to the outputting line on the other side of the U-shaped structure; and the second copper bar3diverts an electric current that flows from one side of the U-shaped structure to the other side.

In some embodiments, the first copper bar2is electrically connected to the inputting line via the transformer.

In some embodiments, the first copper bar2is electrically connected to the outputting line via the electronic fuse board.

It can be seen from the above embodiments that the power-supply shelf according to the embodiments of the present application, by using the technical solution in which the wind exiting side of the at least one fan1faces the power-supply shelf where the module is located; the first copper bar2is of a U-shaped structure and half encircles the fan1; and the second copper bar3is electrically connected to the two ends of the first copper bar2, wherein the first copper bar2and the second copper bar3combine to form a closed loop that fully encircles the fan1, may maintain the power-supply shelf within the range of the normal temperatures, to improve the working stability of the power-supply shelf.

It should be particularly noted that the above embodiments of the power-supply shelf particularly describe the operating processes of the modules by using the embodiments of the heat dissipating and power supply module. A person skilled in the art may easily envisage applying those modules in other embodiments of the heat dissipating and power supply module. Certainly, because all of the modules according to the embodiments of the heat dissipating and power supply module may be mutually mixed, replaced, added and deleted, those reasonable arrangements, combinations and variations of the power-supply shelf should also fall within the protection scope of the present application, and the protection scope of the present application should not be limited to the embodiments.

A person skilled in the art should understand that the discussion on any of the above embodiments is merely illustrative, and are not intended to imply that the scope (including the claims) of the embodiments of the present application is limited to those examples. With the concept of the embodiments of the present application, the embodiments or the technical features of different embodiments may be combined, and many other variations of different aspects of the embodiments of the present application as stated above may exist, which are not provided in detail for brevity. Therefore, any omissions, modifications, equivalent substitutions and improvements that are made within the spirit and the principle of the embodiments of the present application should fall within the protection scope of the embodiments of the present application.