CN207340352U - A kind of air-conditioning electric control box - Google Patents

Abstract

The utility model discloses a kind of air-conditioning electric control box, the air-conditioning electric control box includes electronic-control box (1), is equipped with electrical equipment (3) in it；Electronic-control box includes mounting wall (11) and inlet air wall (12), and inlet air wall is equipped with air inlet (4)；Wind deflector (2) is equipped with electric-controlled box, wind deflector includes the first wind deflector (21) and the second wind deflector (22), first wind deflector is the first air-guiding aisle (A) close to the surface of mounting wall, surface and second wind deflector of first wind deflector away from mounting wall form the second air-guiding aisle (B), electrical equipment includes the first electrical equipment (31) and the second electrical equipment (32), first air-guiding aisle corresponds to the first electrical equipment, and the second air-guiding aisle corresponds to the second electrical equipment；Cold wind is directed at designated position by the cold air duct of the utility model, ensures that high-power electrical part can be sufficiently cool；And it can realize that Electrical multi-layer component cools down at the same time；In addition electrical equipment can be installed, air passage is without ad hoc space on wind deflector.

Description

An air conditioner electric control box

technical field

The utility model relates to the technical field of air conditioners, and specifically proposes an electric control box for a central air conditioner capable of cooling specified electrical components.

Background technique

At present, the electric control box of the outdoor unit of the central air conditioner on the market is usually a square sheet metal structure. Due to the need for rain and dust protection, the general electric control box is relatively well sealed. For large-scale central air conditioners, especially those with large frequency conversion and multi-split units, there are many electrical components and high heat generation. In order to prevent heat accumulation inside the electric control box and affect the normal operation of the air conditioner and the reliability of electrical components, some small holes are usually opened at the bottom of the electric control box, and the heat dissipation louvers are opened on the side to add a waterproof cover structure, as shown in Figure 1. The cold air flowing into the electric control box first cools the components near the air inlet, and then cools other components. This structure has certain limitations on the heat dissipation of the variable frequency drive, and cannot guarantee sufficient cooling of each component. When the ambient temperature is high, it is easy to cause over-temperature protection of the drive.

CN201620466714.6 The utility model discloses a fan coil unit and an electric control box. The electric control box includes a main body of the electric control box, a mounting plate, a fixing plate and a cover plate. The first side wall of the main body of the electric control box is provided with a first Air outlet, the first air outlet faces the fan of the fan coil unit, the outer wall is provided with cooling holes, the mounting plate is used to install electrical components and is connected with the outer wall, and a gap for gas flow is provided between the mounting plate and the first side wall , and the mounting plate is provided with ventilation holes. The air that enters one side of the mounting plate through the cooling hole enters the other side of the mounting plate through the vent hole, and then is discharged through the first air outlet. The fixing plate is used to fix the main body of the electric control box on the sheet metal structure of the fan coil unit. The cover plate can realize the effect of dustproof and waterproof. The outside air is sucked into the electric control box by the fan from the heat dissipation hole, the outside air absorbs the heat of the electrical components in the electric control box, and the air after absorbing heat is discharged to the outside of the electric control box through the first air outlet, so as to reach the inside of the electric control box. The purpose of cooling electrical components. The air flow of the utility model enters the main body of the electric control box, and the air is located on the side of the electrical components of the installation plate. The air outlet is discharged. This solution can reduce the heat on the electric control box, but it has absorbed heat after passing through the side of the electrical components of the mounting plate and becomes hot air. When the hot air enters the side without electrical components, it will cool down. no significant effect.

The outdoor unit of an existing air conditioner is usually divided into two spaces by a middle partition. A space located on one side of the middle partition is provided with a fan and a heat exchanger. This space is relatively large, and the air inlet and outlet of the fan are open to the outside of the outdoor unit. Open state; and a space on the other side of the middle partition is provided with a compressor and an electric control module. This space is relatively small. The outside of the shell is basically closed. If it is an inverter air conditioner, the electronic control module also includes an inverter module. The frequency conversion electric control module is set in the frequency conversion electric control box. Regardless of cooling or heating, when the air conditioner is running, the compressor and the frequency conversion electric control module will generate a lot of heat, especially the heat generated by the frequency conversion module is larger, which is generated by the entire outdoor unit. The part with the highest temperature and the largest heat production, if the heat is not dissipated in time, the frequency conversion electronic control module will not work normally or even burn out. When the temperature of the compressor is too high, it will also affect the performance and service life of the compressor. Trigger the over-temperature protection device, forcing the air conditioner to stop running, affecting the use of the air conditioner. Therefore, it is necessary to dissipate heat for the frequency conversion electronic control module and the compressor. Usually, the frequency conversion electronic control module adopts these two heat dissipation methods:

(1) Install an air-cooled radiator on the frequency conversion electric control box where the frequency conversion electric control module is installed. The radiator can be designed on the side of the fan and heat exchanger next to the middle partition, and the electric control box is erected on the middle partition. However, most of the electric control box is still located on the side of the compressor and the frequency conversion electric control module, and the radiator can also be installed on the side of the compressor and the electric control module next to the middle partition, no matter which side the radiator is installed on the middle partition, It is all through the negative pressure difference formed when the fan is running, so that the outdoor air passes through the heat exchanger through the radiator or the air on the side of the compressor and the electronic control module passes through the radiator for heat exchange and heat dissipation, and then is discharged from the outdoor unit by the fan;

(2) The frequency conversion electronic control module is cooled by setting a refrigerant circuit to dissipate heat, and the compressor usually dissipates heat naturally or by setting up a cooling device. The above heat dissipation methods all discharge the heat emitted by the frequency conversion electronic control module and the compressor to the outside of the outdoor unit .

When the frequency conversion electronic control module in the existing frequency conversion air conditioner adopts air cooling to dissipate heat, the fan and heat exchanger are in a completely open state with the outside of the outdoor unit. The radiator only occupies a small part of it, and it is located in the edge area where the air intake of the fan blades is small, so the air volume flowing through the radiator is very small, and the cooling efficiency of air cooling is very low, especially in summer when the ambient temperature is high When the frequency conversion electronic control module is often poor in heat dissipation, it is easy to cause the entire system to stop due to over-temperature protection during long-term high-temperature operation. Cool the frequency conversion electronic control module, the temperature difference between the refrigerant temperature and the frequency conversion electronic control module is very large, it is very easy to form condensation on the surface of the frequency conversion electronic control module and the electronic control circuit board, thus causing short circuit of the frequency conversion electronic control module circuit board Hidden danger.

In view of this, propose the utility model.

Contents of the invention

The purpose of this utility model is to provide an air conditioner electric control box to solve the above problems.

In order to realize the purpose of the invention, the utility model adopts the following technical solutions:

An air conditioner electric control box, the air conditioner electric control box includes an electric control box, the electric control box includes an installation wall and an air inlet wall, the air inlet wall is provided with an air inlet, and the inside of the electric control box Electrical components are provided, and a wind deflector is provided in the electric control box, and the wind deflector includes a first wind deflector and a second wind deflector, and the surface of the first wind deflector near the installation wall is the second wind deflector. An air guide channel, the surface of the first air guide plate away from the installation wall and the second air guide plate form a second air guide channel, the electrical component includes a first electrical component and a second electrical component, the first The air guide channel corresponds to the first electrical component, and the second air guide channel corresponds to the second electrical component.

Preferably, the wind deflector is integrally formed, and there is an included angle between the first wind deflector and the second wind deflector.

Preferably, the first air guide plate is fixed adjacent to the installation wall, and a first air guide channel is provided between the first air guide plate and the installation wall; the end of the second air guide plate is far away from the first air guide plate Fixed with the air inlet wall.

Preferably, the air inlets are located on the air inlet walls on both sides of the second air deflector.

Preferably, air guide holes are provided on the second air guide plate.

Preferably, the air inlet is completely located on the air inlet wall between the second air guide plate and the installation wall, and the second air guide plate is provided with air guide holes.

Preferably, the second electrical component is installed on the surface of the first wind deflector away from the installation wall.

Preferably, the first electrical component is installed on the installation wall.

Preferably, the wind deflector is an independent tubular structure.

Preferably, at least one wind deflector is arranged inside the electric control box.

Beneficial effect

The utility model has the following advantages:

(1) The cold air channel can guide the cold air to the designated position to ensure that the high-power electrical components can be fully cooled;

(2) Electrical components can be installed normally on the air deflector plate, and no special space is required for the air duct;

(3) The cold air channel can realize simultaneous cooling of multi-layer electrical components.

Description of drawings

Fig. 1 is the air conditioner electric control box of prior art;

Fig. 2 is a structural schematic diagram of the electric control box of the air conditioner of the present invention;

Fig. 3 is a structural schematic diagram of the wind deflector of the air conditioner electric control box of the utility model;

Fig. 4 is a schematic diagram of a partial structure of the electric control box of the air conditioner of the present invention;

Fig. 5 is a schematic diagram of the air duct structure of the air conditioner electric control box structure of the utility model;

Fig. 6 is a schematic diagram of the structure of the air duct of the second embodiment of the structure of the electric control box of the air conditioner of the present invention;

Fig. 7 is a structural schematic diagram of the third air duct of the utility model air conditioner electric control box structure embodiment;

Explanation of reference signs

In order to further clearly illustrate the structure of the utility model and the connection relationship between the components, the following reference signs are given and explained.

Electric control box 1, installation wall 11, air inlet wall 12, air guide plate 2, first air guide plate 21, first fixing part 211, second air guide plate 22, second connecting part 222, air guide hole 221 , the electrical component 3, the first electrical component 31, the second electrical component 32, the air inlet 4, the first air guide channel A, and the second air guide channel B.

Through the description of the above reference numerals, combined with the embodiments of the utility model, the technical solution of the utility model can be understood and explained more clearly.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments, so that those skilled in the art can better understand the utility model and can implement it, but the scope of protection claimed by the utility model is not limited to the specific embodiment. The scope of the description. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

Example 1

As shown in Figures 2-5, an air conditioner electric control box, the electric control box includes an electric control box 1 and a wind deflector 2; the electric control box includes a mounting wall 11 and a plurality of side walls, so The side wall is perpendicular to the installation wall 11; the side wall includes the air inlet wall 12, that is, the air inlet wall 12 is perpendicular to the installation wall 11. The air inlet wall 12 is provided with an air inlet 4 through which cold air can enter the electric control box. Electrical components 3 are installed in the electric control box 1 , wherein the electrical component 3 installed on the installation wall 11 is a first electrical component 31 , and the electrical component 3 installed on the wind deflector 2 is a second electrical component 32 .

The wind deflector 2 includes a first wind deflector 21 and a second wind deflector 22 connected together, the plane where the first wind deflector 21 and the second wind deflector 22 are at an obtuse angle; A first connection portion 211 is provided on the edge of the wind plate 21 away from the second wind guide plate, and a second connection portion 222 is provided on the edge of the second wind guide plate 22 away from the first wind guide plate 21; When the wind deflector 21 is placed adjacent to the installation wall 11 of the electric control box 1, the second wind deflector 22 is away from the installation wall 11 and leans against the air inlet wall 12, and connects with the second connection through the first connection part 211. Part 222, welding, riveting or screwing the wind deflector 2 on the electric control box 1 can effectively ensure that it is firmly fixed, and has passed various vibration tests such as simulated road transportation to verify its reliability. The structure included in the electric control box adopts stamping forming or numerical control processing.

The air inlet 4 on the air inlet wall 12 is located on a side of the second air deflector 22 close to the installation wall 11 . The first air deflector 21 is fixed adjacent to the installation wall 11, and the first air guide channel A is formed between the first air deflector 21 and the installation wall 11, which can make the cold air flow to the designated position inside the electric control box and cool the designated position. The electrical component 3 is the first electrical component 31 installed on the installation wall 11 as shown in FIG. The cold air in the second air guide channel B can simultaneously cool other electrical components 3 , such as the second electrical component 32 installed on the first air guide plate 21 as shown in FIG. 4 . The second air deflector 22 and the second air deflector 21 divide the cold air introduced by the air inlet 4 along the direction of the arrow R into two parts along the arrow R1 and the arrow R2. As shown in Figure 5, the cold air along the direction of the arrow R2 flows through The second air guide channel B can cool the second electrical components 32 disposed on the first air guide plate 21 . The cold air along the direction of the arrow R1 flows through the first air guide channel A, and the cold air flows to the first electrical component 31 disposed on the installation wall 11 to cool it. In this structure, the air flow is provided with a cold air channel according to the needs, so that the air flow flows in a designated direction, and finally cools the designated electrical components, and takes away the heat on the electrical components 3, and discharges them from the air outlet, and the cooling effect is obvious. The first air guide channel A and the second air guide channel B do not require special space. Through the above method, the purpose of designated cooling is finally achieved, ensuring that high-power electrical components can be sufficiently cooled; the arrangement of the cold air duct of the utility model can realize simultaneous cooling of multi-layer electrical components.

Example 2

The principle of this embodiment 2 is the same as that of embodiment 1, the main difference is that as shown in Figure 6, the air inlet 4 is partly located on the second side wall 12 between the second air deflector 22 and the installation wall 11, and the other part is located on the On the second side wall 12 on the side away from the installation wall 11 of the second air guide plate 22 , the second air guide channel B is formed by the second air guide plate 22 and the surface of the first air guide plate 21 away from the installation wall 11 .

At this time, the cold air entering from the air inlet 4 is divided into two parts by the second air guide plate 22, one part is located at the front side of the second air guide plate 22, and it flows through the second air guide channel B along the direction of the arrow R3, and the cold air flows to The second electrical component 32 arranged on the first wind deflector 21; the other part is located at the rear side of the second wind deflector 22, and under the guidance of the second wind deflector 22 and the first inner guide plate 11, it moves along the arrows respectively. Flowing in the direction of R1 and R2, flowing through the first air guide channel A along the arrow R1 direction, the cold air flows to the first electrical component 31 installed on the installation wall 11; flowing through the second air guide channel B along the arrow R2, the cold air The flow flows to the second electrical component 32 arranged on the first wind deflector 21 .

Example 3

The principle of this embodiment 3 is the same as that of embodiment 1, the main difference is that: as shown in Figure 7, the second air deflector 22 of the present utility model does not have an air guide hole 221, that is, the second air deflector 22 does not have an opening; The air inlet 4 is partly located on the second side wall 12 between the second air deflector 22 and the installation wall 11 , and the other part is located on the second side wall 12 of the second air guide 22 away from the installation wall 11 , The second air guide channel B is formed by the second air guide plate 22 and the surface of the first air guide plate 21 away from the installation wall 11 . At this time, the cold air entering from the air inlet 4 is divided into two parts by the second air guide plate 22, one part is located at the front side of the second air guide plate 22, and it flows through the second air guide channel B along the direction of the arrow R3, and the cold air flows to The second electrical component 32 arranged on the first wind deflector 21; the other part is located on the rear side of the second wind deflector 22, which is guided by the second wind deflector 22 and the first inner guide plate 11 along the arrow R1 Direction flows through the first air guiding channel A, and the cold air flows to the first electrical components 31 installed on the installation wall 11 .

The electric control box provided by the utility model is integrally hung on the motor support beam in the central air conditioner, and various installation methods can be realized through the upright column and the lower beam. In the utility model, the wind deflector 2 can be set according to the actual number of cooling electrical components, and can be set to 1, 2 or more; the cold air channel A can be set to 1, 2 or more according to the actual number. The cold air inlet 4 can be arranged on the side, the front or the back of the electric control box 1; the wind deflector 2 can be an independent tubular structure.

The utility model has the following advantages: (1) the cold air channel can guide the cold air to the designated position, ensuring that the high-power electrical parts can be fully cooled; (2) the electrical components 3 can be normally installed on the air guide plate, and no special space is required for the air duct; (3) The cold air channel can realize simultaneous cooling of the multi-layer electrical components 3 .

In the description of this application, the terms "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, "connection" can be a fixed connection, or a detachable connection, or an integral connection ; It can be directly connected or connected through an intermediary profile. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the description of this specification, the descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one aspect of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or embodiment in one embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Those skilled in the art should understand that, although the embodiments disclosed in the embodiments of the invention are as above, the content described is only the implementation methods adopted to facilitate the understanding of the utility model, and is not intended to limit the embodiments of the utility model. Any person skilled in the art of the embodiment of the utility model can make any modification and change in the form and details of the implementation without departing from the spirit and scope disclosed in the utility model, but the embodiment of the utility model The scope of patent protection must still be subject to the scope defined by the appended claims.

Claims (10)

1. a kind of air-conditioning electric control box, the air-conditioning electric control box includes electronic-control box (1), and the electronic-control box (1) includes mounting wall (11) air inlet (4) is equipped with, electrical equipment (3) is equipped with the electric-controlled box with inlet air wall (12), the inlet air wall (12), its It is characterized in that：Wind deflector (2) is equipped with the electric-controlled box, the wind deflector (2) includes the first wind deflector (21) and the second wind-guiding Plate (22), the surface of the close mounting wall (11) of first wind deflector (21) are the first air-guiding aisle (A), first wind-guiding The surface of the remote mounting wall (11) of plate (21) and the second wind deflector (22) form the second air-guiding aisle (B), the electrical equipment (3) the first electrical equipment (31) and the second electrical equipment (32) are included, first air-guiding aisle (A) corresponds to the first electrical equipment (31), corresponding second electrical equipment (32) of second air-guiding aisle (B).

2. air-conditioning electric control box according to claim 1, it is characterised in that：The wind deflector (2) is integrally formed, the first wind-guiding There is angle between plate (21) and the second wind deflector (22).

3. air-conditioning electric control box according to claim 2, it is characterised in that：First wind deflector (21) and mounting wall (11) Adjacent fixation, is equipped with the first air-guiding aisle (A) between the first wind deflector (21) and mounting wall (11)；Second wind deflector (22) One end away from the first wind deflector (21) is mutually fixed with inlet air wall (12).

4. air-conditioning electric control box according to claim 3, it is characterised in that：The air inlet (4) is located at the second wind deflector (22) on the inlet air wall (12) of both sides.

5. air-conditioning electric control box according to claim 4, it is characterised in that：Second wind deflector (22) is equipped with air-guiding hole (221)。

6. air-conditioning electric control box according to claim 3, it is characterised in that：The air inlet (4) is fully located at the second wind-guiding On inlet air wall (12) between plate (22) and mounting wall (11), second wind deflector (22) is equipped with air-guiding hole (221).

7. the air-conditioning electric control box according to claim 5 or 6, it is characterised in that：Second electrical equipment (32) is installed on On the surface of the remote mounting wall (11) of first wind deflector (21).

8. the air-conditioning electric control box according to claim 5 or 6, it is characterised in that：First electrical equipment (31) is installed on On mounting wall (11).

9. air-conditioning electric control box according to claim 1, it is characterised in that：The wind deflector (2) is an independent tubulose Structure.

10. air-conditioning electric control box according to claim 1, it is characterised in that：At least one wind-guiding is equipped with the electric-controlled box Plate (2).