CN214879673U - Electric control device for bridge crane sling - Google Patents

Abstract

The utility model relates to the technical field of electric control devices, in particular to an electric control device for a bridge crane sling, which comprises an electric control box, an electric appliance element arranged in the electric control box, and a box door hinged on the electric control box, wherein the electric control box is separated by a first partition plate to form an electric room at the upper part and a diversion room at the lower part; the diversion chamber is divided by a second partition plate to form an upper cooling chamber and a lower heat dissipation chamber; a plurality of semiconductor refrigerating pieces are fixedly arranged on the second partition plate, wherein the cold ends of the semiconductor refrigerating pieces are positioned in the cooling chamber, and the hot ends of the semiconductor refrigerating pieces are positioned in the heat dissipation chamber; and a plurality of fans are arranged on the side wall of the cooling chamber. The utility model discloses the wind that well fan blew off can be cooled off by the semiconductor refrigeration piece cold junction in the cooling chamber, then gets into the electrical apparatus component cooling for in the electrical chamber, so in order to improve the cooling radiating effect.

Description

Electric control device for bridge crane sling

Technical Field

The utility model relates to an electrically controlled device technical field especially relates to a bridge crane hoist electrically controlled device.

Background

The electric control device for the bridge crane sling is a control box internally integrating electric elements of the bridge crane sling, and is mainly installed on the bridge crane and used for controlling a working circuit of the whole bridge crane.

The existing electric control device mainly comprises an electric cabinet and an electric element arranged in the electric cabinet, and because the electric element can generate heat during working, a heat dissipation mechanism can be arranged on the electric cabinet to cool the electric cabinet, a fan is generally and directly arranged on the electric cabinet to cool the electric cabinet by air cooling, however, the cooling effect is poor and the improvement is still needed.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an electric control device for a bridge crane spreader.

In order to solve the technical problem, the technical scheme of the utility model is that:

an electric control device for a bridge crane sling comprises an electric control box, an electric appliance element arranged in the electric control box, and a box door hinged on the electric control box, wherein the electric control box is divided into an upper electric room and a lower diversion room by a first partition plate; the diversion chamber is divided by a second partition plate to form an upper cooling chamber and a lower heat dissipation chamber; a plurality of semiconductor refrigerating pieces are fixedly arranged on the second partition plate, wherein the cold ends of the semiconductor refrigerating pieces are positioned in the cooling chamber, and the hot ends of the semiconductor refrigerating pieces are positioned in the heat dissipation chamber; the side wall of the cooling chamber is provided with a plurality of fans; an air inlet is formed in one end, far away from the fan, of the first partition plate; the upper part of the electric room is communicated with the heat dissipation room through a connecting pipe; and the side wall of the heat dissipation chamber is provided with an air outlet.

Further, a heat conducting plate which is horizontally arranged is fixedly connected to the upper wall of the second partition plate; the heat conduction plate is provided with a plurality of heat conduction fins extending along the width direction of the electric cabinet at intervals, two adjacent heat conduction fins form a channel through which air flows, and the lower wall of the heat conduction plate is attached to the cold end face of the semiconductor refrigeration piece through a heat conduction material.

The first partition plate is provided with a filter screen covering the air inlet

Furthermore, an air exhaust hole is formed in the top wall of the electric room, which is close to one side of the fan; one end of the connecting pipe is fixedly connected to the top wall of the electric room and covers all the air exhaust holes, and the other end of the connecting pipe is communicated with the heat dissipation chamber.

Furthermore, a heat insulation plate is fixedly connected to the bottom wall of the electric cabinet.

Furthermore, a plurality of mounting trusses are fixedly connected to the bottom wall of the heat insulation plate.

Compare prior art, the utility model has the advantages that:

the utility model discloses a set up cooling chamber and heat dissipation chamber, set up the semiconductor refrigeration piece on the second baffle to the cold junction of semiconductor refrigeration piece is located the cooling chamber, and the hot junction is located the heat dissipation chamber, and the wind that so the fan blew off can be cooled off by semiconductor refrigeration piece cold junction in the cooling chamber, then gets into the electrical apparatus component cooling for in the electrical chamber, so in order to improve the cooling radiating effect. And after the cold air is used for cooling the electric room, the cold air also has certain cold quantity, and is further guided into the heat dissipation room through the connecting pipe to dissipate heat for the hot end of the semiconductor refrigeration piece, so that the refrigeration effect of the semiconductor refrigeration piece is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic side view of the present invention.

Reference numerals: 1. an electric cabinet; 11. an electrical room; 111. an air exhaust hole; 12. a flow guide chamber; 121. a cooling chamber; 122. a heat dissipation chamber; 1221. an air outlet; 2. a box door; 3. a first separator; 31. an air inlet; 32. filtering with a screen; 4. a second separator; 5. a semiconductor refrigeration sheet; 6. a heat conducting plate; 61. a heat conductive fin; 7. a fan; 8. a connecting pipe; 9. a heat insulation plate; 91. and (5) installing the truss.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

Example (b):

referring to fig. 1 and 3, the present embodiment provides an electric control device for a bridge crane spreader, including an electric cabinet 1, an electric component disposed in the electric cabinet 1, and a cabinet door 2 hinged to the electric cabinet 1.

As shown in fig. 2, the electric cabinet 1 is partitioned by the first partition plate 3 to form an upper electric chamber 11 and a lower diversion chamber 12; the first partition board 3 is horizontally arranged, the electrical components are installed in the electrical room 11, and the box door 2 is hinged on the electrical room 11 to cover the electrical room 11.

The diversion chamber 12 is partitioned by a second partition plate 4 to form an upper cooling chamber 121 and a lower heat dissipation chamber 122; the second partition 4 is horizontally disposed.

As shown in fig. 2, a plurality of semiconductor cooling fins 5 are fixedly mounted on the second partition plate 4, and it should be noted that the conventional semiconductor cooling fins 5 have two surfaces, one surface is a cold end surface, and the other surface is a hot end surface, and when in operation, a cooling effect is achieved through the cold end surface.

The cold end of the semiconductor refrigeration sheet 5 is positioned in a cooling chamber 121, and a plurality of fans 7 are mounted on the side wall of the cooling chamber 121; an air inlet 31 is formed at one end of the first partition plate 3 far away from the fan 7. In this way, the fan 7 blows air into the cooling chamber 121, the air flows along the width direction of the cooling chamber 121, at the same time, the cold end of the semiconductor chilling plate 5 starts chilling, and the air blows over the cold surface of the semiconductor chilling plate 5 in the flowing process of the cooling chamber 121 to be chilled, so as to form cold air, and the cold air finally enters the electric room 11 from the air inlet 31 to cool and dissipate heat of electric elements in the electric room 11.

It should be noted that, in the present embodiment, the air inlet 31 is disposed on a side away from the fan 7, so that the air blown by the fan 7 can flow along the width direction of the cooling chamber 121 and then flow into the air inlet 31, so that the air can be sufficiently cooled by the semiconductor chilling plate 5.

In order to further improve the sufficient cooling of the air by the semiconductor chilling plate 5 in the cooling chamber 121, in this embodiment, a horizontally arranged heat conducting plate 6 is fixedly connected to the upper wall of the second partition plate 4, and the heat conducting plate 6 may be an aluminum plate, a copper plate, or the like; the lower wall of the heat conducting plate 6 is attached to the cold end face of the semiconductor refrigerating sheet 5 through a heat conducting material (such as heat conducting silica gel), a plurality of heat conducting fins 61 extending along the width direction of the electric cabinet 1 are arranged on the heat conducting plate 6 at intervals, and two adjacent heat conducting fins 61 form a channel for air to flow through; through radiating fin 61's setting, can increase the heat exchange area of wind, the cold volume that semiconductor refrigeration piece 5 produced like this can be passed through heat-conducting plate 6 and transmitted for heat-conducting fin 61, and then when wind flows between heat-conducting fin 61, can take place the heat exchange with heat-conducting fin 61, realizes carrying out refrigerated effect to wind.

In order to reduce the dust brought into the electrical room 11 by the fan 7, in the present embodiment, a filter screen 32 covering the air inlet 31 is installed on the first partition plate 3, and the dust is filtered by the filter screen 32.

Because semiconductor refrigeration piece 5 can constantly generate heat at the during operation, its hot junction face, if can not be timely effectual dispel the heat to its hot junction, can influence the refrigeration effect of semiconductor refrigeration piece 5 greatly, consequently in this embodiment:

the hot end of the semiconductor refrigeration piece 5 is positioned in the heat dissipation chamber 122, and the upper part of the electrical chamber 11 is communicated with the heat dissipation chamber 122 through a connecting pipe 8; an air outlet 1221 is formed in the side wall of the heat dissipation chamber 122, and the air outlet 1221 is located on the side of the fan 7 opposite to the fan 7.

Specifically, the method comprises the following steps: an air exhaust hole 111 is formed in the top wall of the electric room 11, which is close to one side of the fan 7; one end of the connecting pipe 8 is fixedly connected to the top wall of the electrical room 11 and covers all the air exhaust holes 111, and the other end is communicated with the heat dissipation chamber 122.

Thus, the wind is guided into the electrical chamber 11 after being cooled in the cooling chamber 121 to cool the electrical components, and is exhausted into the connecting pipe 8 through the air exhaust hole 111 on the electrical chamber 11, and the cold wind has a certain amount of cold after cooling the electrical components in the electrical chamber 11, so that the cold wind further enters the heat dissipation chamber 122 through the connecting pipe 8; the wind can flow through the hot end of the semiconductor refrigerating sheet 5 in the process of flowing in the heat dissipation chamber 122 to cool and dissipate the hot end of the semiconductor refrigerating sheet, so that the refrigerating effect of the semiconductor refrigerating sheet 5 is improved; finally, the wind is discharged from the external environment through the outlet 1221.

Because electric cabinet 1 installs on the crane span structure of crane span structure, because the crane span structure is the steel construction, consequently in summer, the crane span structure temperature is higher under the sun shines, if directly install electric cabinet 1 on the crane span structure, the temperature of crane span structure can be given for electric cabinet 1 to cause 1 temperature-rising of electric cabinet, therefore further improvement is done to this embodiment: fixedly connected with heat insulating board 9 on the diapire of electric cabinet 1 comes separation electric cabinet 1 and crane span structure through heat insulating board 9, avoids the two direct contact to realize thermal-insulated effect, reduce the crane span structure to the heat of electric cabinet 1 transmission. Meanwhile, a plurality of mounting trusses 91 are fixedly connected to the bottom wall of the heat insulation plate 9. The electric cabinet 1 is installed on the bridge through the installation truss 91, so that the electric cabinet 1 is erected on the bridge, and the bridge is further prevented from being in direct contact with the electric cabinet 1.

The implementation principle is as follows:

when mounting, the device is first mounted on the bridge by means of a mounting truss 91.

During operation, the fan 7 blows air into the cooling chamber 121, the air flows along the width direction of the cooling chamber 121, in the process, the cold end of the semiconductor refrigeration piece 5 starts to refrigerate, so that the heat conduction fin 61 has a lower temperature, the air is cooled to form cold air when flowing over the heat conduction fin 61 of the semiconductor refrigeration piece 5, and the cold air enters the electric room 11 from the air inlet 31 to cool and radiate the electric elements in the electric room 11.

Then, the cold air in the electric room 11 continuously enters the connecting pipe 8 along the air exhaust hole 111, finally enters the heat dissipation chamber 122 through the connecting pipe 8, and the cold air can sweep over the hot end face of the semiconductor chilling plate 5 in the flowing process of the cold air in the heat dissipation chamber 122, so that the semiconductor chilling plate 5 is cooled and dissipated, and the chilling effect of the semiconductor chilling plate 5 is improved; and finally discharged to the outside environment through the air outlet 1221.

Above only the typical example of the utility model discloses, in addition, the utility model discloses can also have other multiple concrete implementation manners, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall in the utility model discloses the scope of claiming.

Claims (6)

1. The utility model provides a bridge crane hoist electrically controlled device, includes the electric cabinet, locates the electrical components in the electric cabinet to and articulate the chamber door on the electric cabinet, its characterized in that: the electric cabinet is separated by a first partition plate to form an electric room at the upper part and a flow guide room at the lower part; the diversion chamber is divided by a second partition plate to form an upper cooling chamber and a lower heat dissipation chamber; a plurality of semiconductor refrigerating pieces are fixedly arranged on the second partition plate, wherein the cold ends of the semiconductor refrigerating pieces are positioned in the cooling chamber, and the hot ends of the semiconductor refrigerating pieces are positioned in the heat dissipation chamber; the side wall of the cooling chamber is provided with a plurality of fans; an air inlet is formed in one end, far away from the fan, of the first partition plate; the upper part of the electric room is communicated with the heat dissipation room through a connecting pipe; and the side wall of the heat dissipation chamber is provided with an air outlet.

2. An electric control device for a bridge crane spreader according to claim 1, characterized in that: a heat conducting plate which is horizontally arranged is fixedly connected to the upper wall of the second partition plate; the heat conduction plate is provided with a plurality of heat conduction fins extending along the width direction of the electric cabinet at intervals, two adjacent heat conduction fins form a channel through which air flows, and the lower wall of the heat conduction plate is attached to the cold end face of the semiconductor refrigeration piece through a heat conduction material.

3. An electric control device for a bridge crane spreader according to claim 1, characterized in that: and a filter screen covering the air inlet is arranged on the first partition plate.

4. An electric control device for a bridge crane spreader according to claim 1, characterized in that: an air exhaust hole is formed in the top wall of the electric room, which is close to one side of the fan; one end of the connecting pipe is fixedly connected to the top wall of the electric room and covers all the air exhaust holes, and the other end of the connecting pipe is communicated with the heat dissipation chamber.

5. An electric control device for a bridge crane spreader according to any one of claims 1 to 4, wherein: and a heat insulation plate is fixedly connected to the bottom wall of the electric cabinet.

6. An electric control device for a bridge crane spreader according to claim 5, wherein: and the bottom wall of the heat insulation plate is fixedly connected with a plurality of mounting trusses.

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