CN204887834U - Air conditioner and its electrical box assembly - Google Patents

Abstract

The utility model discloses an electrical box assembly, which comprises the electrical box. The exterior of the electrical box is fitted with a radiator. The radiator is provided with a heat dissipation pipe. One end of the heat dissipation pipe is connected to the outlet of an upstream evaporator. An upstream heat dissipation pipeline is connected between the heat dissipation pipes, and a downstream heat dissipation pipeline is connected between the other end of the heat dissipation pipe and the inlet of the downstream compressor. During its working process, the refrigerant enters the heat dissipation pipe from the outlet of the evaporator through the upstream heat dissipation pipeline, and cools down the electrical box through the radiator, and then the refrigerant is transported to the inlet of the compressor through the downstream heat dissipation pipeline and returns to the main pipeline refrigeration cycle system. The electrical box assembly effectively improves the cooling efficiency of the electrical box and makes the cooling effect better by introducing the refrigerant in the main pipeline into the radiator and cooling the electrical box. The utility model also discloses an air conditioner using the electrical box assembly.

Description

Air conditioner and its electrical box assembly

technical field

The utility model relates to the technical field of air conditioner supporting equipment, in particular to an electrical box assembly. The utility model also relates to an air conditioner using the electrical box assembly.

Background technique

The electrical box assembly is one of the important working components of the air conditioner. With the continuous improvement of the use demand, people have put forward higher requirements on the working performance of the electrical box assembly of the air conditioner.

At present, the existing frequency conversion electrical boxes used in frequency conversion air conditioners such as frequency conversion window air conditioners, due to their high integration, will generate a lot of heat during operation, and the temperature of the main board will increase accordingly, and the maximum temperature can reach 90 ℃, or even higher; the current heat dissipation method is mainly to install heat sinks on the inverter electrical box, and rely on the airflow driven by the fan blades outside the outdoor to take away the heat on the electrical box, but when the air conditioner is running for a long time, especially in severe Under outdoor working conditions, only this heat dissipation method cannot meet the cooling requirements of the electrical box, and because the heat dissipation effect of the electrical box cannot be guaranteed, it will bring safety hazards to the normal operation of the whole machine, and even cause the whole machine system to crash.

Therefore, how to improve the heat dissipation efficiency and heat dissipation effect of the electrical box assembly is an important technical problem to be solved by those skilled in the art.

Utility model content

The purpose of the utility model is to provide an electrical box assembly, which has higher heat dissipation efficiency and better heat dissipation effect. Another object of the present utility model is to provide an air conditioner using the above electrical box assembly.

In order to solve the above-mentioned technical problems, the utility model provides an electrical box assembly, including the electrical box, the exterior of the electrical box is fitted with a radiator, the radiator is provided with a heat dissipation pipe, and one end of the heat dissipation pipe An upstream heat dissipation pipeline is connected with the outlet of the upstream evaporator, and a downstream heat dissipation pipeline is connected between the other end of the heat dissipation pipe and the inlet of the downstream compressor.

Preferably, a first valve communicates between the upstream heat dissipation pipeline and the downstream heat dissipation pipeline.

Preferably, a second valve is provided on the upstream heat dissipation pipeline, and the second valve is located downstream of the connection point between the first valve and the upstream heat dissipation pipeline along the extension direction of the upstream heat dissipation pipeline;

A third valve is arranged on the downstream heat dissipation pipeline, and the third valve is located upstream of the connection point between the first valve and the downstream heat dissipation pipeline along the extending direction of the downstream heat dissipation pipeline.

Preferably, the inside of the radiator has an assembly groove suitable for the heat dissipation pipe, and the heat dissipation pipe is embedded and assembled in the heat sink through the assembly groove.

Preferably, the heat dissipation pipe is a U-shaped pipe or a serpentine pipe.

Preferably, a high thermal conductivity silicone coating is provided between the radiator and the electrical box.

Preferably, the radiator and the electrical box are fixed by screws.

Preferably, the radiator is made of aluminum alloy.

The utility model also provides an air conditioner, including a body. A main pipe is arranged in the body. A condenser, an electrical box assembly, a throttling element, an evaporator, and a compressor are sequentially arranged on the main pipe along the flow direction of the refrigerant. The electrical box assembly is specifically the electrical box assembly described in any one of the above.

Compared with the above-mentioned background technology, in the working process of the electrical box assembly provided by the utility model, the refrigerant enters the heat dissipation pipe from the outlet of the evaporator through the upstream heat dissipation pipeline, and cools down the electrical box through the radiator, and then the refrigerant passes through the The downstream heat dissipation pipeline is delivered to the compressor inlet and returned to the main pipeline refrigeration cycle system. The electrical box assembly effectively improves the cooling efficiency of the electrical box and makes the cooling effect better by introducing the refrigerant in the main pipeline into the radiator and cooling the electrical box.

In another preferred solution of the present utility model, a first valve is communicated between the upstream heat dissipation pipeline and the downstream heat dissipation pipeline. During the working process, by opening or closing the first valve, the series or parallel connection between the heat dissipation pipe and the main refrigerant pipeline can be realized, that is, when the first valve is opened, the heat dissipation pipe passes through the upstream heat dissipation pipeline and the downstream heat dissipation pipeline. In parallel with the main pipeline, a small amount of refrigerant flows through the radiator during the operation of the equipment, and moderately cools down the electrical box to dissipate heat, so as to meet the heat dissipation needs of the electrical box when the equipment is running under normal working conditions; when the first valve is opened, the heat dissipation The tubes are directly connected in series to the main refrigerant pipeline through the upstream heat dissipation pipeline and the downstream heat dissipation pipeline. At this time, all the refrigerant in the loop system will flow through the heat dissipation pipes, so as to quickly and efficiently cool down and dissipate heat for the electrical box to meet high-intensity The heat dissipation needs of the electrical box under working conditions.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of the refrigerant circulation system of an air conditioner provided by a specific embodiment of the present invention;

Fig. 2 is a schematic diagram of an exploded structure of a radiator provided by a specific embodiment of the present invention and a heat dissipation pipe thereof;

Fig. 3 is a schematic diagram of an exploded structure of a radiator and its heat dissipation pipes provided by another specific embodiment of the present invention.

Detailed ways

The core of the utility model is to provide an electrical box assembly, which has higher heat dissipation efficiency and better heat dissipation effect; at the same time, it provides an air conditioner using the above-mentioned electrical box assembly.

In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Figure 1, Figure 2 and Figure 3, Figure 1 is a schematic diagram of the refrigerant circulation system of the air conditioner provided by a specific embodiment of the utility model; Figure 2 is a radiator provided by a specific embodiment of the utility model Fig. 3 is a schematic diagram of an exploded structure of a radiator and its heat pipe provided by another specific embodiment of the present invention.

In a specific embodiment, the electrical box assembly provided by the utility model includes an electrical box 11, and a radiator 12 is arranged on the outside of the electrical box 11, and a heat dissipation pipe 121 is arranged inside the radiator 12, and one end of the heat dissipation pipe 121 An upstream heat dissipation pipeline 122 is connected to the outlet of the upstream evaporator 24 , and a downstream heat dissipation pipeline 123 is connected between the other end of the heat dissipation pipe 121 and the inlet of the downstream compressor 25 .

During the working process, the refrigerant enters the heat dissipation pipe 121 from the outlet of the evaporator 24 through the upstream heat dissipation pipeline 122, and cools down the electrical box 11 through the radiator 12, and then the refrigerant is transported to the inlet of the compressor 25 through the downstream heat dissipation pipeline 123 place and return to the main line 21 refrigeration cycle system. The electrical box assembly introduces the refrigerant in the main pipeline 21 into the radiator 12 and cools the electrical box 11, effectively improving the cooling efficiency of the electrical box and making the heat dissipation effect better.

Further, a first valve 131 communicates between the upstream cooling pipeline 122 and the downstream cooling pipeline 123 . During the working process, by opening or closing the first valve 131, the series or parallel connection between the heat dissipation pipe 121 and the main refrigerant pipeline 21 can be realized, that is, when the first valve 131 is opened, the heat dissipation pipe 121 passes through the upstream heat dissipation pipeline 122 and The downstream heat dissipation pipeline 123 is connected in parallel with the main pipeline 21. During the operation of the equipment, a small amount of refrigerant flows through the radiator 12, and moderately cools and dissipates heat for the electrical box 11, so as to meet the heat dissipation requirements of the electrical box 11 when the equipment is running under normal working conditions. ; When the first valve 131 is opened, the heat dissipation pipe 121 is directly connected in series to the main refrigerant pipeline 21 through the upstream heat dissipation pipeline 122 and the downstream heat dissipation pipeline 123, and at this time, all the refrigerant in the loop system will flow through the radiator 12 , so that the electrical box 11 can be quickly and efficiently cooled and dissipated to meet the heat dissipation requirements of the electrical box 11 under high-intensity working conditions.

More specifically, the upstream heat dissipation pipeline 122 is provided with a second valve 132, and the second valve 132 is located downstream of the connection point between the first valve 131 and the upstream heat dissipation pipeline 122 along the extension direction of the upstream heat dissipation pipeline 122; A third valve 133 is disposed on the road 123 , and the third valve 133 is located upstream of the connection point between the first valve 131 and the downstream heat dissipation pipeline 123 along the extending direction of the downstream heat dissipation pipeline 123 . The second valve 132 and the third valve 133 can directly control whether the cooling pipe 121 is connected to the main pipeline 21, so that the staff can choose whether to use the refrigerant in the pipeline to cool down and dissipate heat for the electrical box according to actual working conditions.

On the other hand, the inside of the radiator 12 has an assembly groove 124 adapted to the heat pipe 121 , and the heat pipe 121 is embedded and assembled in the heat sink 12 through the assembly groove 124 . This embedded assembly structure can effectively ensure the assembly reliability between the heat dissipation pipe 121 and the radiator 12 .

Of course, during actual assembly, workers can choose to assemble the heat pipe 121 in the radiator in a semi-embedded or fully embedded form according to actual needs, as long as the actual use requirements of the electrical box assembly can be met.

In addition, the cooling pipe 121 is a U-shaped pipe (as shown in FIG. 2 ) or a serpentine pipe (as shown in FIG. 3 ). Among them, the U-shaped tube has a relatively simple structure and is less difficult to manufacture and assemble; the serpentine tube has a larger effective heat dissipation area and a higher heat dissipation efficiency.

It should be pointed out that during actual assembly and use, the staff can flexibly adjust the structural form of the heat dissipation pipe 121 according to the actual working conditions. At the same time, the structure of the heat dissipation pipe 121 is not limited to the U-shaped pipe shown in Figures 2 and 3 And serpentine tube, as long as it can meet the actual use needs of the electrical box assembly.

In addition, a high thermal conductivity silicone coating (not shown in the figure) is provided between the radiator 12 and the electrical box 11 . The high thermal conductivity silicone coating can further improve the heat conduction efficiency between the radiator 12 and the electrical box 11 , so that the cooling effect of the electrical box 11 is better.

Further, the radiator 12 and the electrical box 11 are fixed by screws. This kind of screw fixing structure is relatively simple and reliable, and the operation is simple and easy. It should be pointed out that during actual assembly, the heat sink 12 should be assembled on the side close to the main board of the electrical box 11, so that its heat dissipation and cooling effect can be more rapid and effective.

More specifically, the radiator 12 is made of aluminum alloy. This kind of aluminum alloy parts has good thermal conductivity and reliable structure. Of course, the material of the heat sink 12 is not limited to the above-mentioned aluminum alloy, and it can also be other metal parts or alloy parts, that is, as long as it can meet the actual use requirements of the electrical box assembly. Can.

In a specific embodiment, the air conditioner provided by the utility model includes a body, and a main pipeline is arranged in the body, and a condenser, an electrical box assembly, a throttling element, and an evaporator are sequentially arranged on the main pipeline along the flow direction of the refrigerant. . Compressor, the electrical box assembly is specifically the electrical box assembly as described in the above embodiments. The electrical box assembly of the air conditioner has high heat dissipation efficiency and good heat dissipation effect.

In summary, the electrical box assembly provided in the present utility model includes an electrical box, and a radiator is attached to the outside of the electrical box, and a heat dissipation pipe is arranged in the heat sink, and one end of the heat dissipation pipe is connected to the upstream An upstream cooling pipeline is connected between the outlets of the evaporator, and a downstream cooling pipeline is connected between the other end of the cooling pipe and the inlet of the downstream compressor. During its working process, the refrigerant enters the heat dissipation pipe from the outlet of the evaporator through the upstream heat dissipation pipeline, and cools down the electrical box through the radiator, and then the refrigerant is transported to the compressor inlet through the downstream heat dissipation pipeline and returns to the main pipeline for refrigeration system. The electrical box assembly effectively improves the cooling efficiency of the electrical box and makes the cooling effect better by introducing the refrigerant in the main pipeline into the radiator and cooling the electrical box.

In addition, the air conditioner provided by the utility model using the above-mentioned electrical box assembly has a higher heat dissipation efficiency of the electrical box assembly and a better heat dissipation effect.

The electrical box assembly provided by the utility model and the air conditioner using the electrical box assembly have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Claims (9)

1. An electrical box assembly, characterized in that: it comprises an electrical box, a heat sink is arranged on the outside of the electrical box, a heat dissipation pipe is arranged in the heat sink, and one end of the heat dissipation pipe is connected to the upstream evaporator An upstream cooling pipeline is connected between the outlets, and a downstream cooling pipeline is connected between the other end of the cooling pipe and the inlet of the downstream compressor. 2 . The electrical box assembly according to claim 1 , wherein a first valve communicates between the upstream heat dissipation pipeline and the downstream heat dissipation pipeline. 3 . 3. The electrical box assembly according to claim 2, wherein a second valve is arranged on the upstream heat dissipation pipeline, and the second valve is located on the first valve along the extending direction of the upstream heat dissipation pipeline. Downstream of the connection point between the valve and the upstream cooling pipeline; A third valve is arranged on the downstream heat dissipation pipeline, and the third valve is located upstream of the connection point between the first valve and the downstream heat dissipation pipeline along the extending direction of the downstream heat dissipation pipeline. 4. The electrical box assembly according to claim 1, characterized in that: the inside of the radiator has an assembly groove adapted to the heat pipe, and the heat pipe is embedded and assembled in the said heat pipe through the assembly groove. inside the radiator. 5. The electrical box assembly according to claim 1, wherein the heat dissipation pipe is a U-shaped pipe or a serpentine pipe. 6 . The electrical box assembly according to claim 1 , wherein a high thermal conductivity silicone coating is provided between the heat sink and the electrical box. 7 . 7. The electrical box assembly according to claim 1, wherein the heat sink is fixed to the electrical box by screws. 8. The electrical box assembly according to claim 1, wherein the radiator is made of aluminum alloy. 9. An air conditioner, comprising a body, a main pipe is arranged in the body, and a condenser, an electrical box assembly, a throttling element, an evaporator, and a compressor are sequentially arranged on the main pipe along the flow direction of the refrigerant, and it is characterized in that: The electrical box assembly is specifically the electrical box assembly according to any one of claims 1-8.