CN209823230U - Low-voltage complete switch equipment - Google Patents

Abstract

The utility model discloses a low pressure complete sets switchgear belongs to electrical equipment technical field. The method comprises the following steps: the switchgear body, the outside cover of switchgear body is equipped with the inner loop casing, be formed with circulation channel between switchgear body and the inner loop casing, and the lower terminal surface of switchgear body is provided with a plurality of exhaust vents, the up end of switchgear body is provided with a plurality of fresh air inlets, a plurality of exhaust vents and circulation channel's lower part intercommunication, a plurality of exhaust vents department is provided with a plurality of radiator fan, the lateral wall on circulation channel upper portion is provided with a plurality of semiconductor refrigeration pieces, a plurality of fresh air inlets and circulation channel's upper portion intercommunication, a plurality of fresh air inlet department is provided with the refrigeration fan. The utility model provides a pair of low pressure complete sets switch equipment realizes inner loop formula's cooling, can prevent that external environment from causing the influence to the switchgear main part, can effectively reduce the inside temperature of switchgear main part again.

Description

A low-voltage complete switchgear

technical field

The utility model relates to the technical field of electrical equipment, in particular to a low-voltage complete switchgear.

Background technique

The low-voltage switchgear is a switchgear manufacturer that centrally fixes the control, measurement and protection devices of multiple low-voltage switches inside the switchgear. This kind of switchgear has a firm structure and is widely used in a wide range of environments.

However, the existing low-voltage complete switchgear has poor heat dissipation performance. When used for a long time, it is easy to cause loss and aging of components in the switch cabinet, which affects its service life and stability to a certain extent. In addition, due to the need for heat dissipation, it will There are many heat dissipation holes on the cabinet body, and other environmental factors such as external dust will affect the equipment in the cabinet.

Utility model content

In view of the above-mentioned problems existing in the prior art, the aim is to provide a low-voltage complete switchgear to realize internal circulation cooling, which can not only prevent the external environment from affecting the main body of the switchgear, but also effectively reduce the temperature inside the main body of the switchgear.

The specific technical scheme is as follows:

A low-voltage complete switchgear, comprising: a switchgear body, an inner circulation casing is sheathed on the outside of the switchgear body, a circulation channel is formed between the switchgear body and the inner circulation casing, and the lower end surface of the switchgear body is provided with Several air outlet holes, the upper end surface of the switchgear body is provided with several air inlet holes, several air outlet holes are connected with the lower part of the circulation channel, several air outlet holes are provided with several cooling fans, and the side wall of the upper part of the circulation channel is provided with several semiconductor In the cooling sheet, several air inlets communicate with the upper part of the circulation channel, and cooling fans are arranged at the several air inlets.

The above-mentioned low-voltage complete switchgear also has the feature that the upper part of the circulation channel and the lower part of the circulation channel are arranged in a "V" shape.

The above-mentioned low-voltage complete switchgear also has the feature that several air outlet holes are located in the middle of the lower part of the circulation passage, and several air inlet holes are located in the middle of the upper part of the circulation passage.

The above-mentioned low-voltage complete switchgear also has such a feature that the semiconductor cooling chip includes a heat source end face and a cold source end face, the cold source end face is located on the inner wall of the circulation channel, and the heat source end face is located on the outer wall of the circulation channel.

The above-mentioned low-voltage complete switchgear also has the feature that a heat sink is attached to the end surface of the heat source of each semiconductor cooling chip.

The above-mentioned low-voltage complete switchgear also has the feature of further comprising an air outlet pipe located above the switchgear body, and the air outlet pipe communicates with several air outlet holes.

The above-mentioned low-voltage complete switchgear also has the feature that a number of through holes are evenly arranged on the lower end surface of the air outlet pipe along the length direction of the air outlet pipe.

The positive effect of above-mentioned technical scheme is:

The utility model provides a low-voltage complete set of switchgear, which has a simple structure, and the circulation shell and the switchgear body are designed in one piece, so as to realize the circulation cooling of the main body of the switchgear, so as to prevent other factors such as external dust from affecting the main body of the switchgear In addition, the hot air in the main body of the switchgear is drawn out and cooled by the external circulation channel, and then re-sent into the main body of the switchgear, which can effectively cool down the main body of the switchgear and prevent the failure of the main body of the switchgear due to excessive temperature.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of a low-voltage complete switchgear of the present invention.

In the drawings: 1. Switchgear body; 2. Internal circulation shell; 3. Circulation channel; 4. Air outlet; 5. Cooling fan; 6. Air inlet; 7. Cooling fan; 9. Radiator; 10. Air outlet pipe.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the following embodiments are combined with accompanying drawing 1 to describe a low-voltage complete switchgear provided by the utility model in detail.

Fig. 1 is a schematic structural diagram of an embodiment of a low-voltage switchgear set of the present invention. Hole 4, heat dissipation fan 5, air inlet hole 6, cooling fan 7, semiconductor cooling sheet 8, radiator 9, air outlet pipe 10.

A low-voltage complete switchgear. The outer side of the switchgear body 1 is provided with an inner circulation shell 2. A circulation channel 3 is formed between the switchgear body 1 and the inner circulation shell 2. The hot gas transmitted from the switchgear body 1 After being cooled by the circulation channel 3, it returns to the switchgear body 1, thereby cooling the switchgear body 1, and the lower end surface of the switchgear body 1 is provided with a number of air outlet holes 4, and the hot air flows from the lower end surface of the switchgear body 1. The air outlet holes 4 are pulled out, and the upper end surface of the switchgear body 1 is provided with several air inlet holes 6, cold air is blown in from the air inlet holes 6 on the upper end surface of the switchgear body 1, and several air outlet holes 4 communicate with the lower part of the circulation channel 3 , a number of air outlet holes 4 are provided with a number of heat dissipation fans 5, the heat dissipation fans 5 are used to send out the hot air in the switchgear body 1, and the side walls of the upper part of the circulation channel 3 are provided with a number of semiconductor refrigeration sheets 8, which are used for the semiconductor refrigeration sheet 8. To cool the hot air in the circulation channel 3, several air inlet holes 6 communicate with the upper part of the circulation channel 3, and some air inlet holes 6 are provided with cooling fans 7, which are used to regenerate the air that has been refrigerated. Feed into the switchgear body 1.

In a preferred embodiment, as shown in FIG. 1 , both the upper part of the circulation channel 3 and the lower part of the circulation channel 3 are arranged in a "V" shape. Utilizing the principle that the density of cold air is higher than that of hot air, the lower part of the circulation channel 3 is V-shaped, which is conducive to the rising of hot air to the upper part of the circulation channel 3, and the upper part of the circulation channel 3 is V-shaped, which is conducive to the downward flow of cold air to the circulation. The air inlet hole in the lower part of channel 3.

In a preferred embodiment, as shown in FIG. 1 , several air outlet holes 4 are located in the middle of the lower part of the circulation channel 3 , and several air inlet holes 6 are located in the middle of the upper part of the circulation channel 3 . Conducive to the flow of hot and cold air.

In a preferred embodiment, as shown in FIG. 1 , the semiconductor cooling chip 8 includes a heat source end face and a cold source end face, the cold source end face is located on the inner side wall of the circulation channel 3 , and the heat source end face is located on the outer side wall of the circulation channel 3 . The end face of the cold source is used to cool down the hot air, and the end face of the cold source transfers the heat in the hot air to the end face of the heat source, and dissipates heat through the end face of the heat source.

In a preferred embodiment, as shown in FIG. 1 , a heat sink 9 is bonded to the end surface of the heat source of each semiconductor cooling fin 8 . The end face of the heat source is dissipated through the radiator 9, so as to realize the continuous cooling operation of the end face of the cold source.

In a preferred embodiment, as shown in FIG. 1 , an air outlet pipe 10 is further included, the air outlet pipe 10 is located above the switchgear body 1 , and the air outlet pipe 10 communicates with several air inlet holes 6 .

In a preferred embodiment, as shown in FIG. 1 , several through holes are evenly arranged on the lower end surface of the air outlet pipe 10 along the length direction of the air outlet pipe 10 . The cold air is blown into the switchgear body 1 more evenly, and the local high temperature inside the switchgear body 1 is reduced.

Hereinafter, a specific implementation will be described. It should be pointed out that the structure, process, and material selection described in the following implementation are only used to illustrate the feasibility of the implementation, and are not intended to limit the protection scope of the present utility model.

The low-voltage complete switchgear uses a heat dissipation fan to draw the hot air in the main body of the switchgear from the air outlet hole into the circulation channel, because the characteristics of the hot air will flow to the upper part of the circulation channel, and the hot air passes through the semiconductor device arranged on the upper part of the circulation channel. Cooling is achieved when the cooling sheet is cooled. The semiconductor cooling sheet transfers heat from the end face of the cold source to the end face of the heat source, and then uses the radiator to cool the heat source end face of the semiconductor cooling sheet. The air inlet hole enters the air outlet pipe inside the main body of the switchgear, and then enters the inside of the main body of the switchgear through several through holes of the air outlet pipe, so as to realize the cooling of the main body of the switchgear.

The above are only preferred embodiments of the present utility model, and are not intended to limit the implementation and protection scope of the present utility model. For those skilled in the art, they should be able to realize that any use of the utility model specification and illustration content made Solutions obtained by equivalent replacements and obvious changes shall all be included in the protection scope of the present utility model.

Claims (7)

1. A low-voltage complete switchgear, comprising a switchgear body, characterized in that an inner circulation shell is sheathed on the outside of the switchgear body, and a circulation loop is formed between the switchgear body and the inner circulation shell. channel, and the lower end surface of the switchgear body is provided with a number of air outlet holes, the upper end surface of the switchgear body is provided with a number of air inlet holes, a number of the air outlet holes communicate with the lower part of the circulation channel, and a number of A number of heat dissipation fans are arranged at the air outlet, a number of semiconductor cooling chips are arranged on the side wall of the upper part of the circulation channel, a number of the air inlet holes communicate with the upper part of the circulation channel, and a number of the air inlet holes are provided with cooling fan. 2. A low-voltage complete switchgear according to claim 1, characterized in that, the upper part of the circulation channel and the lower part of the circulation channel are arranged in a "V" shape. 3. A low-voltage complete switchgear according to claim 2, characterized in that, several of the air outlet holes are located in the middle of the lower part of the circulation passage, and several of the air inlet holes are located at the upper part of the circulation passage middle position. 4. A low-voltage complete switchgear according to claim 1, characterized in that, the semiconductor refrigeration sheet includes a heat source end face and a cold source end face, the cold source end face is located on the inner side wall of the circulation channel, and the heat source The end surface is located on the outer side wall of the circulation channel. 5 . The low-voltage complete switchgear according to claim 4 , wherein a heat sink is bonded to the heat source end surface of each of the semiconductor cooling fins. 6 . 6. A low-voltage complete switchgear according to claim 1, characterized in that it also includes an air outlet pipe, the air outlet pipe is located above the switchgear body, and the air outlet pipe is connected to several The air outlet holes are connected. 7. The low-voltage complete switchgear according to claim 6, wherein the lower end surface of the air outlet pipe is uniformly arranged with several through holes along the length direction of the air outlet pipe.