CN1215635C

CN1215635C - Power supply modole

Info

Publication number: CN1215635C
Application number: CN 03113730
Authority: CN
Inventors: 张士杰; 张华建
Original assignee: Emerson Network Power Co Ltd
Current assignee: Jiangsu Dafa Environmental Protection Technology Co.,Ltd.
Priority date: 2003-01-28
Filing date: 2003-01-28
Publication date: 2005-08-17
Anticipated expiration: 2023-01-28
Also published as: CN1445913A

Abstract

The present invention discloses a power supply module which comprises a box body, a box cover and a radiator, wherein the box body is composed of a bottom plate and supporting plates which upwards extend along the front edge, the left edge and the right edge of the bottom plate; the radiator is inserted at the rear part of the bottom plate of the box body; a front supporting plate of the machine box is provided with an opening facing to the radiator; the cover plate is connected with the box body by fastening pieces; two openings are arranged on the front supporting plate of the box body; a radiator fan is respectively installed in each of the two openings; an isolation ribbed plate used for preventing from electromagnetic radiation, which upwards extends is arranged on the bottom plate; the isolation ribbed plate is as high as the supporting plates on both sides. The radiator which is provided with a heating element is arranged at the rear part of the box body and is arranged in front of the box body facing to the radiator fans, and therefore, the heat of heat dissipation can be directly blown out of the box body; the heat generated by the radiator can not remain in the box body so the temperature in the box body can not rise. The isolation ribbed plate can effectively isolate an electromagnetic radiation source from other circuits; besides, the isolation ribbed plate prevents from electromagnetic interference and has favorable shielding performance.

Description

Power module

Technical field

The present invention relates to provide the supply unit of working power, be specifically related to a kind of power module that adopts the modular body structure to make for miscellaneous equipment.

Background technology

In the prior art, the plug-in power supply cabinet of working power is provided for miscellaneous equipment, be that the radiator that will be used to dispel the heat is fixed in the cabinet, again powerful heater element is installed on the radiator and dispels the heat, the heat that radiator gave out is discharged naturally by the air vent hole on the cabinet sidewall, there is following defective in this radiator structure: radiator is installed in cabinet inside, owing to be natural heat dissipation, the heat that radiator sent needs to stay for some time in cabinet just can be discharged from, so the temperature in the cabinet is still higher after working long hours, the components and parts that are arranged in cabinet work long hours in the easily accelerated ageing and being out of order of too high temperature, thereby influence the operate as normal of miscellaneous equipment.

Summary of the invention

The technical problem to be solved in the present invention is, a kind of power module is provided, and this power module can keep lower temperature in its inner chamber, thereby avoid being arranged in the element premature aging of module when work, improves the reliability of module work; And module also has stronger shielding properties.

Technical scheme provided by the invention is as follows: construct a kind of power module, comprise casing, cover plate and radiator, described casing by base plate and before base plate, the upwardly extending support plate in left and right edge constitutes, described radiator is inlaid in the rear portion of box bottom, on the front supporting plate of described cabinet, have opening facing to described radiator, described cover plate is connected with described casing by securing member, radiator fan is installed respectively in the described opening, be connected with the shielded metal net on the air inlet of described fan, pass wire netting with screw described fan is fixed on the cabinet opening.

In above-mentioned power module, also be provided with on the described base plate and extend upward, and contour with the both sides support plate, be used to prevent the isolation gusset of electromagnetic radiation.

Adopt power module provided by the invention, has following advantage: the rear portion that is arranged on casing by the radiator that heater element will be housed, make the ventilation conduit in the radiator directly lead to outside the casing, when power module is worked, being arranged on the casing front also can directly blow out the heat in the heat radiation outside the casing facing to the fan of radiator, the heat that radiator produced can not rest in the casing, make the temperature in the casing can not raise, thereby guaranteed the functional reliability of power module, isolating gusset can effectively isolate electromagnetic radiation source and other circuit, prevent electromagnetic interference, by securing member with casing, radiator and cover plate connect as one, and make module have good shielding properties.

Description of drawings

Fig. 1 is the front view of power module of the present invention;

Fig. 2,3,4,5, the 6th, power module shown in Figure 1 left and right, bow, face upward and rearview;

Fig. 7 is the power module perspective view;

Fig. 8 is the body structure front view in the module shown in Figure 1;

Fig. 9,10,11,12, the 13rd, casing shown in Figure 8 left and right, bow, face upward and rearview;

Figure 14 is the perspective view of casing shown in Figure 8;

Figure 15,16,17,18, the 19th, the looking up of radiator in the module shown in Figure 1, mainly look, overlook, a left side is looked and right view.

Figure 20,21,22,23, the 24th, the master of module cover plate shown in Figure 1 look, look up, the right side is looked, a left side is looked and rearview;

Figure 25 is the power module internal structure stereogram that the PCB circuit board is housed.

Embodiment

Shown in Fig. 1,2,3,4,5,6,7, power module is made of casing 3, cover plate 2 and radiator 1, casing 3 by base plate 41 and before base plate 41, the upwardly extending

support plate

43,33,42 in left and right edge constitutes, as shown in Figure 8, radiator 1 is inlaid in the rear portion of box bottom 41, have the opening 31 facing to radiator 1 on the front supporting plate 43 of cabinet, cover plate 2 is connected by the top edge of securing member with preceding, left and

right support plate

43,33,42.When the assembling power module, can be on the radiator 1 at cabinet rear portion with the heater element centralized arrangement, by fan is set in the cabinet front portion to radiator 1 cooling of drying, the heat on the radiator directly can be blown out outside the casing by fan, make that the radiating efficiency of power module is higher; Be tightly linked by employing between box body 3, box cover 2 and the radiator 1, constitute the electric conductor that is interconnected, make casing have good shielding properties, the aperture widths of casing outside should be less than 5mm, as shown in Figure 7.

The concrete structure of the casing 3 in the above-mentioned module is shown in Fig. 8,9,10,11,12,13, normally on the front supporting plate 43 of casing 3, establish one or two opening 31, in two openings 31, be separately installed with radiator fan, be connected with the shielded metal net on the air inlet of fan, adopt screw to pass wire netting fan is fixed on the cabinet edge of opening, can eliminate the shielding interval that the fan opening is brought, to improve the bulk shielding performance of casing.On base plate 41, be provided with and extend upward, and contour, be used to prevent the

isolation gusset

35,40 of electromagnetic radiation with both sides support plate 33,42.The

isolation gusset

35,40 that is arranged on box house can effectively be isolated main electromagnetic radiation source and other circuit; Also being provided with a plurality of being used on the base plate 41 of casing is connected with cover plate 2, has the joint pin 32,36 of screw, is provided with the through hole 37 that is connected with radiator 1 in the rearward end 38 of base plate 41.

Concrete structure such as the Figure 15 of radiator 1 in the module, 16,17,18, shown in 19, the column structure that radiator 1 is square, its length is less than the width of box bottom 41, integrated molding has the air channel 13 that is made of 12 separations of a plurality of first dividing plates on cylinder, during installation, its bottom surface upwards, opening air channel 13 is downward, casing can directly be discharged with the heat in the casing in air channel 13, the end of several therein first dividing plates 12 is provided with and is used for the screw 11 that is connected with box bottom 41, be provided with two second partitions 39 that are used for setting-in radiator 1 at the rear portion of box bottom 41, as shown in Figure 8, be provided with in the interval that second partition 39 and both sides support plate form to be used for installing and hand over, the installing hole 34 of Direct current power source socket, as shown in Figure 8.

The concrete structure of the cover plate 2 in the module is shown in Figure 20,21,22,23,24, be provided with and casing is isolated the

corresponding flange

21,22 of

gusset

35,40 shapes at the medial surface of cover plate 2, with cover plate 2 with make after casing 3 is connected this regionally can form more effective shielding; Back edge at cover plate 2 is provided with the rib 23 that stretches out downwards, also is provided with the connecting hole 24 corresponding with joint pin 32,36 on cover plate 2.

As shown in Figure 1, fixedly connected with rack, be provided with in the leading section of the casing 3 both sides support plates outside and be used for the journal stirrup 5 that is connected and fixed with rack for ease of power module.

Casing 3 in the power module,

radiator

1 and 2 three parts of cover plate adopt the technology of integrated molding to make with casting aluminium material.

Figure 25 shows the internal structure stereogram of the power module that PCB circuit board 103 is housed, when mounted, high power valve in the PCB circuit board 103 102 can be concentrated the back that is arranged on PCB circuit board 103, and adopt securing member the heating face of these high power valves 102 to be fixed on the top of radiator 1, the fan 101 that the heat that high power valve 102 is sent can be set at casing 3 fronts directly blows out outside the casing by radiator 1, can face down and be installed in the casing 3 one of other small components is installed on the PCB circuit board 103, PCB circuit board 103 can be supported on the connection double-screw bolt 32 in the casing and isolate gusset 35, on 40, can make wind that fan 101 blown out like this when passing the inner chamber of casing 3, subsidiary few part heat that these elements are sent is also by outside the radiator 1 discharge machine, make in the casing 3 can the temperature remains within the normal range for a long time state.

Claims

1, a kind of power module, comprise casing, cover plate and radiator, described casing by base plate and before base plate, the upwardly extending support plate in left and right edge constitutes, it is characterized in that, described radiator is inlaid in the rear portion of box bottom, have the opening facing to described radiator on the front supporting plate of described cabinet, described cover plate is connected with described casing by securing member, and radiator fan is installed respectively in the described opening.

2, according to the described power module of claim 1, it is characterized in that, be connected with the shielded metal net on the air inlet of described fan, the screw of described fan by passing described shielded metal net is on the cabinet opening.

3, according to claim 1 or 2 described power modules, it is characterized in that described base plate is provided with and extends upward, and contour, be used to prevent the isolation gusset of electromagnetic radiation with the both sides support plate.

4, according to claim 1 or 2 described power modules, it is characterized in that, described radiator is the square body structure, its length is less than the width of box bottom, integrated molding is separated the air channel that constitutes by a plurality of first dividing plates on cylinder, several therein first dividing plate ends are provided with and are used for the screw that is connected with base plate, be provided with two second partitions that are used for the setting-in radiator at the rear portion of described box bottom, be provided with the input of AC and DC power supply, accessory power outlet installing hole in the interval that described second partition and both sides support plate constitute.

According to the described power module of claim 4, it is characterized in that 5, the height of described radiator is lower than the height of described casing both sides support plate, on the back edge of described cover plate, be provided with the rib that stretches out downwards.

6, according to claim 1 or 2 described power modules, it is characterized in that, also be provided with a plurality of being used on the described box bottom and be connected the joint pin that has screw with described cover plate.

7, according to claim 1 or 2 described power modules, it is characterized in that, be connected with the fixedly journal stirrup of being convenient to be connected with rack in the described casing both sides support plate leading section outside.

8, according to the described power module of claim 3, it is characterized in that, be provided with and the corresponding flange of described isolation gusset shape at the medial surface of described cover plate.

According to claim 1 or 2 described power modules, it is characterized in that 9, described casing, cover plate and radiator are a kind of integrated molding members.

10, according to claim 1 or 2 described power modules, it is characterized in that, also comprise the PCB circuit board that is installed in the described casing, one of element is installed on the described PCB circuit board to face down and is installed in the casing, the high power valve that is arranged in the PCB circuit board is concentrated the back that is arranged on the PCB circuit board, and the heating face of described high power valve is fixed with the abuts of described radiator.