CN203573863U

CN203573863U - Heat radiation structure of thyristor switch

Info

Publication number: CN203573863U
Application number: CN201320685828.6U
Authority: CN
Inventors: 王家新; 黄再生; 罗志坚
Original assignee: SHANGHAI FIRST ELECTRICAL GROUP CO Ltd
Current assignee: SHANGHAI FIRST ELECTRICAL GROUP CO Ltd
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2014-04-30
Anticipated expiration: 2023-10-31

Abstract

The utility model discloses a heat radiation structure of a thyristor switch. The heat radiation structure includes a heat radiation bottom plate and a casing, a plurality of thyristor modules and a plurality of temperature switches are arranged on the heat radiation bottom plate, the casing is connected with the heat radiation bottom plate, the heat radiation structure further includes an axial flow fan, a plurality of air ducts are penetrated through the heat radiation bottom plate, a heat radiation air channel is arranged on the back side of the heat radiation bottom plate, a plurality of heat radiation holes are respectively arranged at the two sides of the casing, and the axial flow fan is fixed on the heat radiation air channel on the back side of the heat radiation bottom plate. The heat radiation structure can rapidly radiate heat in the thyristor switch and improves the service life of the thyristor switch.

Description

A kind of radiator structure of thyristor switch

Technical field

The utility model relates to a kind of radiator structure, is specifically related to a kind of for the radiator structure on thyristor switch.

Background technology

Thyristor is the abbreviation of thyratron transistor, can be called silicon controlled rectifier again, is called in the past controllable silicon for short; Nineteen fifty-seven, General Electric Apparatus Co.(U.S.A.) developed first item thyristor product in the world, and in 1958 by its commercialization; Thyristor is PNPN four-level semiconductor structure, and it has three utmost points: anode, negative electrode and gate pole; Thyristor has the characteristic of silicon rectification device, can under high voltage, large current condition, work, and its course of work can be controlled, be widely used in the electronic circuits such as controlled rectification, AC voltage adjusting, contactless electronic beam switch, inversion and frequency conversion.

But, utilize electronic switch thyristor when work of thyristor work can give out very large heat, if not in time the heat in electronic switch is shed, can affect the work of electronic switch, even can damage electronic switch.

Utility model content

The technical problems to be solved in the utility model is: thyristor switch can give out very large heat when work, if not in time the heat in electronic switch is shed, can affect the work of electronic switch, even can damage electronic switch, thereby a kind of radiator structure of thyristor switch is provided.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of radiator structure of thyristor switch, described radiator structure relates to radiating bottom plate and shell, described radiating bottom plate is provided with some thyristor modules and some temperature switches, described shell is connected with radiating bottom plate, it is characterized in that: described radiator structure also comprises axial flow blower, on described radiating bottom plate, be equipped with several ventilation holes, the described radiating bottom plate back side is provided with heat dissipation wind channel;

Described shell both sides are respectively equipped with some louvres;

Described axial flow blower is installed on the heat dissipation wind channel at the radiating bottom plate back side.

In a preferred embodiment of the present utility model, described heat dissipation wind channel is formed by the radiation tooth of some and column distribution.

In a preferred embodiment of the present utility model, described axial flow blower coordinates the main heat loss through convection passage of formation with heat dissipation wind channel, and described axial flow blower coordinates the secondary heat loss through convection passage of formation by heat dissipation wind channel with the louvre on ventilation hole and shell.

By technique scheme, the beneficial effects of the utility model are:

The utility model is simple in structure, easy operating.

The utility model can shed the heat in thyristor switch fast, has improved the useful life of thyristor switch.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The structural representation of the thyristor switch that Fig. 1 provides for the utility model;

Fig. 2 is rearview of the present utility model;

Fig. 3 is front view of the present utility model;

Fig. 4 is the schematic diagram of main heat loss through convection passage of the present utility model;

Fig. 5 is the schematic diagram of secondary heat loss through convection passage of the present utility model.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 1, Fig. 2 and Fig. 3, the radiator structure of a kind of thyristor switch that the utility model provides, mainly comprises radiating bottom plate 100, some thyristor modules 200, some temperature switches 300, axial flow blower 400 and shell 500.

Radiating bottom plate 100, is provided with heat dissipation wind channel 110 at the back side of radiating bottom plate 100, and heat dissipation wind channel 110 is to be convenient to outside air-flow contact with radiating bottom plate 100, thereby reduces the temperature of radiating bottom plate 100.

Heat dissipation wind channel 110 is specifically formed side by side by several radiation tooths 111, forms wind hole 112 between described radiation tooth.

On radiating bottom plate 100, be also provided with some ventilation holes 120 that run through plate body, specifically can be provided with 4 ventilation holes 120, these 4 ventilation holes 120 be take two as one group, are symmetricly set on radiating bottom plate 100.

Ventilation hole 120, specifically with the corresponding cooperation of heat dissipation wind channel 110, when outside air-flow is blown into radiating bottom plate 100 surface by heat dissipation wind channel 110, a part of air-flow can be blown in thyristor switch by ventilation hole 120.

Axial flow blower 400, by screw, be arranged on radiating bottom plate 100 back sides, specifically can be placed in heat dissipation wind channel 110 bottoms, after it switches on power, sustainable generation air-flow, and air-flow is vertically blowed to radiating bottom plate 100 from the back side, and be blown into radiating bottom plate 100 surfaces by heat dissipation wind channel 110, wherein a part of air-flow can be discharged and take away heat from 100 both sides of radiating bottom plate in thyristor switch, and some air-flow, can be blown in thyristor switch by ventilation hole 120.

Shell 500, is connected with radiating bottom plate 100 by screw, in shell 500 both sides, is provided with bridge type louvre 510.

Bridge type louvre 510, ventilation hole 120 corresponding matching specifically and on radiating bottom plate 100, when a part of air-flow is blown in thyristor switch by ventilation hole 120, can blow out from louvre 510, thereby take away the heat in thyristor switch.

Referring to Fig. 4, axial flow blower 400 matches with heat dissipation wind channel 110 and can form a main heat loss through convection passage, and concrete forming process is as follows:

Axial flow blower 400 air inducing vertically blow to the heat dissipation wind channel 110 at radiating bottom plate 100 back sides from the back side, at this moment wind can be drawn to bilateral symmetry along heat dissipation wind channel 110 length directions by the wind hole 112 on heat dissipation wind channel 110, thereby form main heat loss through convection passage 600.

Referring to Fig. 5, axial flow blower 400 coordinates the secondary heat loss through convection passage of formation successively with heat dissipation wind channel 110, ventilation hole 120 and louvre 510, and concrete forming process is as follows:

Because some the wind holes 112 on heat dissipation wind channel 110 communicate with ventilation hole 120, vertically blow to the air-flow of heat dissipation wind channel 110, wherein some air-flow can be blown in ventilation hole 120 along heat dissipation wind channel 110 depth directions by the wind hole 112 communicating with ventilation hole 120, inner by ventilation hole 120 insertion switches again, the air-flow of introducing is discharged from the louvre 510 of shell 500 both sides again, thereby forms secondary heat loss through convection passage 700.

By above-mentioned enforcement, the utility model can produce two kinds of radiating modes, and by axial flow blower 400 air inducing, the heat in thyristor switch can shed heat by main heat loss through convection passage and secondary heat loss through convection passage respectively fast.

Referring to Fig. 1, some thyristor modules 200 and the interspersed middle part that is arranged in radiating bottom plate 100 fronts of some temperature switches 300, be specifically arranged between two groups of ventilation holes 120.

Thyristor module 200 can produce heat, and heat is conducted to radiating bottom plate 100 when work.

Temperature switch 300, for the temperature on sensing radiating bottom plate 100, and when the temperature on temperature switch 300 sensing radiating bottom plates 100 is demarcated temperature higher than it, temperature switch 300 will close connects sympodium flow fan 400 power supplys, and axial flow blower 400 will be started working.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. the radiator structure of a thyristor switch, described radiator structure relates to radiating bottom plate and shell, described radiating bottom plate is provided with some thyristor modules and some temperature switches, described shell is connected with radiating bottom plate, it is characterized in that: described radiator structure also comprises axial flow blower, on described radiating bottom plate, be equipped with several ventilation holes, the described radiating bottom plate back side is provided with heat dissipation wind channel;

Described shell both sides are respectively equipped with some louvres;

2. the radiator structure of a kind of thyristor switch according to claim 1, is characterized in that: described heat dissipation wind channel is formed by the radiation tooth of some and column distribution.

3. the radiator structure of a kind of thyristor switch according to claim 1, it is characterized in that: described axial flow blower coordinates the main heat loss through convection passage of formation with heat dissipation wind channel, described axial flow blower coordinates the secondary heat loss through convection passage of formation by heat dissipation wind channel with the louvre on ventilation hole and shell.