CN209022720U - Cooling device for electric appliance assembly in electric bus - Google Patents

Abstract

The utility model discloses a cooling device of electrical components in an electric bus, which is arranged in the electric bus, the electric bus comprises a carriage and an air conditioning unit, the air conditioning unit is provided with a compressor, at least one evaporator, a condenser and a plurality of air blowers, wherein the air conditioning unit is also provided with at least one chamber and is internally provided with the at least one evaporator, one side of the chamber adjacent to the plurality of air blowers is provided with an air outlet pipe, the other side of the chamber is provided with an air return pipe, the cooling device is provided with an electrical room which is provided with at least one electrical component, one side wall of the electrical room is provided with a first air pipe and is connected with one of the air outlet pipes, the other side wall of the electrical room is provided with a second air pipe and is connected with one of the air return pipes, thereby, cooling air is brought into the electrical room through the first air pipe to cool the at least one electrical component, the hot air is brought back to the air return pipe through the second air pipe and cooled through the evaporator, so that the effect of cooling circulation is achieved.

Description

Cooling unit for electrical components in electric buses

technical field

The utility model relates to a cooling device, in particular to a cooling device for electrical components in an electric bus.

Background technique

The electrical components of the electric bus in the known technology are installed in an electrical room, and the electrical components generate heat during operation. Therefore, the peripheral wall of the electrical room is provided with several air outlets and at least one fan, which utilizes heat convection. Air is exchanged with the outside of the vehicle to achieve the effect of heat dissipation. In addition, the bottom of the electrical room is provided with at least one water outlet. When it rains, when water flows in from the plurality of air outlets, it can flow out from the at least one water outlet to prevent water from flowing out. Avoid water damage to electrical components.

However, although the above-mentioned design can achieve the effect of cooling down the temperature of the electrical appliance room, in summer, the temperature difference between the electrical appliance room and the outside of the vehicle is not large, and the electrical appliance room cannot be effectively cooled by thermal convection, and the air outside the vehicle cannot be effectively cooled. It contains dust and moisture, which is easy to cover the several air outlets and electrical components, affecting the effect of heat removal, and the long-term exposure of the electrical components in a high humidity environment will also reduce the life of the electrical components. Therefore, after observing the above-mentioned shortcomings, the creator of this case believes that the cooling device of the electrical components in the existing electric bus needs to be improved, and the present utility model comes into being.

Utility model content

The purpose of this technical solution is to provide a cooling device for electrical components in an electric bus, which brings the cold air of the cold air conditioner into the electrical room through the cooling circuit to effectively cool the electrical components.

In order to achieve the above purpose, the technical solution provides a cooling device for electrical components in an electric bus, which is arranged in an electric bus, the electric bus has a compartment and an air-conditioning unit, and the air-conditioning unit is provided with a compressor, At least one evaporator, one condenser and several blowers, the air conditioning unit is also provided with at least one chamber, the at least one chamber is provided with the at least one evaporator, and the chamber is on the side adjacent to the several blowers An air outlet pipe is connected, and several cold air ports are arranged on the air outlet pipe. The air outlet pipe is connected to the carriage. The other side of the chamber is connected with a return air pipe. The return air pipe is provided with at least one air return port. The air return duct is communicated with the compartment space; and the cooling device of the electrical components in the electric bus has an electrical room, the electrical room is provided with at least one electrical component, and a side wall of the electrical room is provided with a first air duct, The first air duct is connected to one of the air outlet ducts, and the other side wall of the electrical room is provided with a second air duct, and the second air duct is connected to one of the return air ducts.

Wherein, the air cooled by the evaporator is brought into the air outlet pipe by the blowers, and is blown to the cabin by the cold air ports. At this time, the return air pipe will generate negative pressure, so that the hot air in the cabin will be The air return port is brought into the chamber, and the hot air is cooled by the evaporator, thereby forming an air circuit.

Wherein, the first air duct is connected to the air outlet duct of the chamber, and the second air duct is connected to the return air duct, so that the cooling air brought into the air outlet duct by the blowers can enter through the first air duct The electrical room cools the at least one electrical component, and the heat of the at least one electrical component can be taken out by the second air duct and brought into the return air duct, thereby forming a cooling circuit.

As another implementation of the technical solution, the air return cover is provided with a filter screen.

The cooling device for the electrical components in the electric bus provided by this technical solution is to bring cooling air into the air outlet pipe from the plurality of blowers through an air circuit, and blow the cooling air to the compartment through the plurality of cooling air ports, and the The hot air in the cabin is brought back to the container room by the return air outlet, and then the hot air is cooled by the evaporator to achieve the effect of the air circuit circulation. The electrical room enters the cooling air through the first air duct through a cooling circuit. An electrical room to cool the electrical component, and the heat of the electrical component can be brought back to the container by the second air duct, so that the hot air is cooled by the evaporator, thereby effectively cooling the electrical room, and the electrical room It can be in a closed state, so that the temperature of the electrical room is not affected by the weather outside the vehicle, and the service life of the electrical components can be extended.

Description of drawings

FIG. 1 is a side view of a preferred embodiment of the present invention.

FIG. 2 is a top sectional view of the preferred embodiment of the present invention.

3 is a side sectional view of the preferred embodiment of the present invention.

FIG. 4 is a block system diagram of a preferred embodiment of the present invention, showing the state of air circulation.

FIG. 5 is a schematic diagram of the use of the present invention to show the state of the air circulation of the air circuit.

FIG. 6 is a schematic diagram of the use of the present invention to show the state of the air circulation of the cooling circuit.

Description of symbols in the attached drawings:

100 cooling unit; 10 electrical room; 11 electrical components; 20 first air duct; 30 second air duct; 200 electric bus; 201 carriage; 300 air conditioning unit; 301 compressor; 302 evaporator; 303 condenser; 304 blower; 305 Compartment; 306 Outlet; 307 Cold Air Port; 308 Return Air Duct; 309 Return Air Port; 310 Filter.

Detailed ways

Please refer to FIG. 1 , FIG. 2 and FIG. 3 , a cooling device 100 for electrical components in an electric bus (hereinafter referred to as the cooling device 100 ) is disclosed, which is disposed in an electric bus 200 , and the electric bus 200 has a The compartment 201 and an air-conditioning unit 300, the air-conditioning unit 300 is provided with a compressor 301, at least one evaporator 302, a condenser 303 and several blowers 304, the air-conditioning unit 300 is also provided with at least one room 305, the utility model The embodiment is exemplified by two chambers 305, the two chambers 305 are provided with the evaporator 302, each chamber 305 is provided with several blowers 304 on one side of the evaporator 302, and each chamber 305 is provided with a plurality of blowers 304. An air outlet pipe 306 is connected to one side adjacent to the plurality of blowers 304 , the air outlet pipe 306 is provided with a plurality of cooling air ports 307 , the air outlet pipe 306 is connected to the compartment 201 , and the other side of each chamber 305 is connected to There is a return air duct 308, the return air duct 308 is provided with at least one return air port 309, the return air duct 308 is communicated with the space of the compartment 201, and a filter screen 310 is covered with the air return port 309.

Please refer to FIG. 4 , the air cooled by the evaporator 302 is brought into the air outlet duct 306 by the plurality of blowers 304 , and is blown toward the cabin 201 by the plurality of cooling air ports 307 . At this time, the air return duct 308 A negative pressure state will be generated, so that the hot air in the cabin 201 is brought into the chamber 305 by the air return port 309, and then the hot air is cooled by the evaporator 302, thereby forming an air circuit.

The cooling device 100 has an electrical compartment 10, the electrical compartment 10 is provided with at least one electrical component 11, a side wall of the electrical compartment 10 is provided with a first air duct 20, the first air duct 20 is connected to one of the air outlets Pipe 306 , a second air duct 30 is disposed on the other side wall of the electrical room 10 , and the second air duct 30 is connected to one of the return air ducts 308 .

Please refer to FIG. 4 , in the embodiment of the present invention, the first air duct 20 is connected to the air outlet duct 306 of one of the two chambers 305 , and the second air duct 30 is connected to the two chambers Another return air duct 308 of 305, whereby the cooling air brought into the air outlet duct 306 by the plurality of blowers 304 can enter the electrical room 10 through the first air duct 20 and cool the at least one electrical component 11 , and the heat of the at least one electrical component 11 can be taken out by the second air duct 30 and brought into the return air duct 308 , thereby forming a cooling circuit, and the hot air is cooled by the air circuit.

Referring to FIGS. 4 and 5 , when the air conditioning unit 300 is in operation, the blowers 304 bring the cooled air into the air outlet duct 306 , and then make the cooled air pass through the cooling air ports 307 When the air is blown towards the cabin 201 , the return air duct 308 will generate negative pressure, so that the hot air in the cabin 201 is brought into the two chambers 305 by the return air duct 308 , and then cooled by the evaporators 302 For hot air, please refer to FIG. 6 again. The first air duct 20 is connected to the air outlet duct 306 of one of the two chambers 305 , so that the cooled air can enter the appliance through the first air duct 20 chamber 10, and cool the at least one electrical component 11, then the heat of the at least one electrical component 11 can be carried out by the second air duct 30 and brought back to the return air duct 308 of the other of the two chambers 305, The hot air is cooled by the air circuit, thereby effectively cooling the electrical room 10 .

It is worth mentioning that the electrical room 10 can be in a closed state, so that the cooling of the electrical room 10 is not affected by the climate outside the vehicle, and the air conditioning unit 300 can make the air in the air circuit have stable temperature and humidity, In addition, the filter screen 310 of the air conditioning unit 300 can filter dust or particles in the air, so when the cooled air enters the electrical room 10 , dust and water vapor will not accumulate, and the life of the electrical components 11 can be prolonged.

It is worth mentioning that the cooling device 100 of the present invention uses a cooling circuit in parallel with the air circuit, and no additional electrical equipment is added to guide the air or perform cooling. In addition to low cost and easy installation, it also reduces the probability of failure. , and has excellent competitiveness.

The above descriptions are only preferred feasible embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural changes made by using the contents of the description and drawings of the present invention shall be included in the present invention. within the scope of the utility model rights.

Claims (2)

1. a kind of cooling device of the electric appliance component in electronic bus is set in an electronic bus, the electronic bus tool There are a compartment and an air-conditioning unit, which is equipped with a compressor, at least an evaporator, a condenser and several drums Blower, it is characterised in that:

The air-conditioning unit is additionally provided with an at least room, which is equipped with an at least evaporator, and the room is in neighbouring The side of several air blowers is connected with a discharge pipe, which is equipped with several cold air mouths, which is connected to the compartment, The other side of the room is connected with a backwind tube, which is equipped with an at least return air inlet, the backwind tube and the cabin space phase Connection；

The cooling device of electric appliance component in the electronic bus has an electric apparatus room, which is equipped with an at least electric appliance component, The one side wall of the electric apparatus room is equipped with one first air hose, which is connected to a wherein discharge pipe, the other side of the electric apparatus room Wall is equipped with one second air hose, which is connected to a wherein backwind tube.

2. the cooling device of the electric appliance component in electronic bus according to claim 1, it is characterised in that: wherein, this time Stock cap is equipped with a filter screen.