CN110461136A - Electrical apparatus box heat radiation structure, electrical apparatus box structure and air conditioning equipment - Google Patents

Abstract

The invention provides a heat dissipation structure of an electrical box, an electrical box structure and an air conditioner. The heat dissipation structure of the electrical box includes a radiator and a fan, and the radiator is arranged on the electrical box to lead out the heat in the electrical box; the radiator is located in the air passage generated by the fan. Fix the radiator on the heat dissipation surface of the electrical box to increase its heat dissipation area, which can conduct the heat in the electrical box as soon as possible and in time, and generate forced air flow through the fan to take away the heat from the radiator to achieve a good heat dissipation effect .

Description

Electrical box cooling structure, electrical box structure and air conditioning equipment

technical field

The invention belongs to the technical field of air-conditioning equipment, and in particular relates to an electrical box heat dissipation structure, an electrical box structure and an air-conditioning equipment.

Background technique

When air conditioners and similar refrigeration equipment use frequency conversion compressors, they will be equipped with a frequency converter for the compressor. Since the frequency converter is responsible for supplying power to the frequency conversion compressor, the power is relatively large, and components such as compressor IPM and PFC will generate large Heat, if the heat cannot be dissipated in time, it will easily cause the protection of components or even burn out, and then cause the equipment to fail to operate normally, so it is usually necessary to install a cooling device for the inverter.

For split-type air conditioners, the external unit generally adopts an axial flow fan. While the fan strengthens the heat exchange for the outdoor heat exchanger, it also blows to the surface of the radiator, resulting in low heat dissipation efficiency. For those occasions where there is no outdoor axial flow fan, it is often necessary to design additional radiator solutions.

In the prior art, a heat dissipation structure for the electric control box of an air conditioner is disclosed, but it only has holes on the top of the box, but the air volume entering the box is very small, and the heat exchange effect is not ideal.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to provide an electrical box heat dissipation structure, an electrical box structure and an air conditioner, which can conduct heat away in time and have a good heat dissipation effect.

In order to solve the above problems, the present invention provides a cooling structure for an electrical box, including a radiator and a fan. in the air flow path.

Preferably, the heat dissipation structure of the electrical box further includes an air duct, and the air duct communicates with the air inlet or outlet of the fan; the radiator is arranged in the air duct.

Preferably, the heat dissipation structure of the electrical box further includes a delay control device, and the delay control device is electrically connected to the fan.

Preferably, a gap is provided between the radiator and the wall of the air duct.

Preferably, the radiator includes a plurality of fins, and the height of each fin is stepped along the wind direction.

Preferably, the heat dissipation structure of the electrical box further includes a transfer air port, and the transfer air port communicates between the air duct and the fan.

Preferably, the transition air port is set in a trumpet shape, the small opening end communicates with the air duct, and the large opening end communicates with the fan.

Preferably, a mesh cover is provided on the air outlet of the fan.

According to another aspect of the present invention, an electrical box structure is provided, including the heat dissipation structure of the electrical box as described above.

According to still another aspect of the present invention, an air conditioner is provided, including the electrical box structure as described above.

The heat dissipation structure of an electrical box provided by the present invention includes a radiator and a fan, the radiator is arranged on the electrical box, and the heat in the electrical box is exported; the radiator is located in the air flow channel generated by the fan . Fix the radiator on the heat dissipation surface of the electrical box to increase its heat dissipation area, which can conduct the heat in the electrical box as soon as possible and in time, and generate forced air flow through the fan to take away the heat from the radiator to achieve a good heat dissipation effect .

Description of drawings

Fig. 1 is a structural schematic diagram of a heat dissipation structure of an electrical box according to an embodiment of the present invention;

Fig. 2 is an exploded view of the heat dissipation structure of the electrical box according to the embodiment of the present invention.

The reference signs are indicated as:

1. Electrical box; 2. Radiator; 21. Ladder; 3. Air duct; 4. Transfer vent; 5. Fan.

Detailed ways

Referring to Figures 1 to 2, according to an embodiment of the present invention, a cooling structure for an electrical box includes a radiator 2 and a fan 5, the radiator 2 is arranged on the electrical box 1, and the electrical box 1 is exported The heat inside; the radiator 2 is located in the air passage generated by the fan 5 .

Utilize the radiator 2 located on the electrical box 1, especially the heat dissipation surface of the electrical box 1, to increase the heat dissipation area and improve the heat dissipation efficiency; the radiator 2 is located in the air flow channel generated by the fan 5, and the forced air generated by the operation of the fan 5 The flow can quickly take away the heat of the radiator 2, so that the heat dissipation efficiency is improved.

The heat dissipation structure of the electrical box also includes an air duct 3 which communicates with the air inlet or outlet of the fan 5 ; the radiator 2 is arranged in the air duct 3 .

The shape and size of the air duct 3 can be adjusted according to the use environment, such as the shape and size of the radiator 2; the size of the corresponding fan 5 can also be adjusted according to actual needs.

In the above structure, the radiator 2 is arranged in the air duct 3, and the air duct 3 is specially provided for the radiator 2, so that the air flow generated by the fan 5 is all used to drive the air to flow on the surface of the radiator 2, thereby improving the air flow of the radiator 2. cooling speed. In addition, as shown in Figure 1, an air duct 3 is provided on the outer cover of the radiator 2, and the air duct 3 is fixedly connected with the electrical box 1, so that the radiator 2 and the electrical box 1 become an integral part and can be used separately from the whole machine.

The heat dissipation structure of the electrical box also includes a delay control device, which is electrically connected to the fan, and the fan can be delayed to stop after the control device of the electrical box stops working through the delay control device.

Preferably, the radiator 2 includes a plurality of fins, and the height of each of the fins is stepped along the wind direction. The fins shown in FIG. 2 include a stepped portion 21, or other similar structures. Adjustments are made; the arrangement of multiple fins greatly increases the area of the radiator 2, and the heat dissipation effect is good.

The fins with a stepped structure change the flow direction of the air flowing through, resulting in multi-directional air flow and improving heat dissipation efficiency; in order to improve the heat dissipation effect of the fins, the fins are made of aluminum alloy or other materials that are easy to dissipate heat.

In order to facilitate the connection between the air duct 3 and the fan 5, the heat dissipation structure of the electrical box also includes an adapter air outlet 4, which is connected between the air duct 3 and the fan 5; the air duct 3 is allocated by adding an adapter air outlet 4 Convenience of connection with fan 5.

The adapter air outlet 4 is set in a trumpet shape, the small mouth end communicates with the air duct 3 , and the large mouth end communicates with the fan 5 . By using the air duct 3 with a small inner diameter to communicate with the large-sized fan 5, the wind speed in the air duct 3 is greatly increased, and the heat dissipation efficiency is high.

The heat dissipation structure of the electrical box of the present invention is suitable for the heat dissipation of the electrical box, such as the heat dissipation of the frequency conversion controller. The air duct 3 is specially designed for the radiator 2 on the heat dissipation surface of the electrical box 1, so that the fan 5 can drive the air to flow on the surface of the fins of the radiator 2. The hot air after passing through the radiator 2 is exhausted out of the cavity of the controller box to prevent the temperature in the cavity from continuously rising; at the same time, the radiator 2 and the controller are integrated.

The tuyere of the fan 5 is provided with a mesh cover, and a layer of mesh cover is arranged outside the cooling fan 5 to protect the mechanical damage.

According to an embodiment of the present invention, an electrical box structure includes the above-mentioned heat dissipation structure for an electrical box.

According to an embodiment of the present invention, an air conditioner includes the electrical box structure as described above. The air-conditioning equipment includes an air conditioner or similar refrigeration equipment, especially an air-conditioning equipment without an outdoor axial flow fan.

The air conditioner of the present invention comprises a frequency conversion controller electrical box 1 , a radiator 2 , an air duct 3 , an adapter air outlet 4 and a fan 5 . When the air conditioner unit is in the running state after being powered on, the power components of the frequency conversion controller will generate heat. At this time, the fan 5 is always in the running state. When the unit stops running, the fan 5 will be turned off after a delay.

The air intake of the entire heat dissipation system enters from the compressor cavity, wherein the compressor cavity communicates with the external environment, and the air discharged from the compressor cavity enters the air duct 3 where the radiator 2 is located. In the air duct 3, The air at normal temperature is in full contact with the fins of the radiator 2 for heat exchange. The radiator 2 is in good contact with the heating power components of the frequency conversion controller. The air will take away the heat from the components of the frequency conversion controller, and then pass through the air duct 3. Come to the transfer air outlet 4, and finally exhaust it out of the cavity through the cooling fan 5.

The hot air is directly discharged to the outside of the cavity to avoid heat accumulation in the compression cavity, making the temperature in the cavity continue to rise and affecting the heat exchange effect.

Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned implementation manners can be freely combined and superimposed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range. The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of electrical appliance kit radiator structure, which is characterized in that including radiator (2) and fan (5), the radiator (2) is located at On electrical appliance kit, the heat in the electrical appliance kit is exported；The radiator (2) is located at air flow channel caused by the fan (5) In.

2. electrical appliance kit radiator structure according to claim 1, which is characterized in that the electrical appliance kit radiator structure further includes wind Road (3), the air duct (3) are connected to the air inlet of the fan (5) or air outlet；The radiator (2) is located at the air duct (3) in.

3. electrical appliance kit radiator structure according to claim 1 or 2, which is characterized in that the electrical appliance kit radiator structure also wraps Overrun control is included, the overrun control is electrically connected with the fan.

4. electrical appliance kit radiator structure according to claim 2, which is characterized in that the radiator (2) and the wind path wall Between be equipped with gap.

5. electrical appliance kit radiator structure according to claim 2 or 4, which is characterized in that the radiator (2) includes multiple ribs Piece, the height of each fin are ladder-like setting along wind direction.

6. electrical appliance kit radiator structure according to claim 2, which is characterized in that the electrical appliance kit radiator structure further includes turning It gives a dinner for a visitor from afar mouth (4), the switching air port (4) is connected between the air duct (3) and the fan (5).

7. electrical appliance kit radiator structure according to claim 6, which is characterized in that the switching air port (4) is set as tubaeform, Osculum end is connected to the air duct (3), and big opening end is connected to the fan (5).

8. electrical appliance kit radiator structure according to claim 1, which is characterized in that the air port of the fan (5) is equipped with net Cover.

9. a kind of electric box structure, which is characterized in that including electrical appliance kit radiator structure a method as claimed in any one of claims 1-8.

10. a kind of air-conditioning equipment, which is characterized in that including electric box structure as claimed in claim 9.