Air conditioner all-in-one machine electric control box with double heat dissipation channels

Abstract

The utility model discloses an air conditioner all-in-one machine electric control box with double heat dissipation channels, which comprises a box body and a box cover, a first electric control board and a second electric control board are installed in the box body, a plurality of air inlets are arranged on the surface of the box cover, the first electric control board is matched with a heat dissipation seat to be fixed, a heat dissipation cavity is arranged on the back face of the heat dissipation seat, and the heat dissipation cavity is communicated with the heat dissipation channel. A plurality of air channel inlets are formed in the upper end face and the lower end face of the heat dissipation cavity, an air channel outlet is formed in one side of the heat dissipation cavity, an air outlet is formed in the side wall, right opposite to the air channel outlet, of the box body, the second electric control board is directly fixed to the wall of the box body, and cooling fins are embedded in the back face of the wall of the box body and penetrate through the wall of the box body to be attached to the second electric control board. A plurality of air holes are formed in the box body wall above the second electric control board, and a flow guide cover is arranged on the back faces of the air holes and guides air of the air holes to the heat dissipation block. The utility model provides an air conditioner all-in-one machine electric control box with double heat dissipation channels. The upper heat dissipation channel and the lower heat dissipation channel are arranged to achieve efficient heat dissipation of electric control boards in a plurality of layout positions in the electric control box.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning field especially is related to a kind of air conditioner all-in-one machine electric cabinet with double heat dissipation channel. BACKGROUND

[0002] Electric cabinet belongs to the core component of air conditioner, and electric control component can generate certain heat in the use process of air conditioner, while air conditioner all-in-one machine is exposed to external environment, especially in the season needing refrigeration (or dehumidification), due to high temperature exposure and the operation of air conditioner refrigeration (or dehumidification), the temperature of electric control component in unit is often in high temperature state, and it is easy to cause component failure due to excessively high temperature, cause air conditioner failure, cause customer complaint, so corresponding heat dissipation structure needs to be designed in matching.

[0003] The existing heat dissipation is composed of bottom plate and multiple heat dissipation fins arranged on the bottom plate, and electronic module is attached to the bottom plate. When working, the heat generated by the electronic module is conducted on the bottom plate and diffused to the heat dissipation fins through the bottom plate. The use shows that the deficiencies of the prior art are: 1. The heat is only conducted from the bottom plate to the heat dissipation fins, the conduction mode is single, the heat diffusion effect is poor, the temperature difference between high and low temperature regions is obvious, the heat distribution of the heat dissipation fins is uneven, and the heat dissipation is uneven. 2. The full-aluminum heat sink is used, which needs a large heat dissipation area, consumes more materials and has high cost. 3. Due to the weak heat dissipation effect, the working reliability and service life of the electronic module are affected. CONTENT OF UTILITY MODEL

[0004] The utility model aims at overcoming the defects in the background art, and provides an air conditioner all-in-one machine electric cabinet with double heat dissipation channels, which realizes efficient heat dissipation of multiple layout position electric control boards in the electric cabinet by setting two groups of heat dissipation channels.

[0005] To achieve the above object, the utility model provides the following technical scheme: an air conditioner all-in-one machine electric cabinet with double heat dissipation channels is embedded in an air conditioner all-in-one machine and includes a cabinet and a cabinet cover. A first electric control board and a second electric control board are installed in the cabinet in an up-down layout. The cabinet cover is provided with multiple air inlets. External air flows enter the cabinet through the air inlets. The first electric control board is fixed in cooperation with a heat dissipation seat. The heat dissipation seat has a heat dissipation cavity on the back surface, and multiple air duct inlets are arranged on the upper and lower end surfaces of the heat dissipation cavity. An air duct outlet is arranged on one side of the heat dissipation cavity, and an air outlet is arranged on the side wall of the cabinet opposite to the air duct outlet. The air inlets, the heat dissipation cavity and the air outlet form a first heat dissipation channel for the first electric control board. The second electric control board is directly fixed on the wall of the cabinet, and the wall of the cabinet is embedded with heat dissipation fins on the back surface. The heat dissipation fins pass through the wall of the cabinet and are attached to the second electric control board. Multiple air holes are arranged on the wall of the cabinet above the second electric control board, and a flow guide cover is arranged on the back surface of the air holes to guide the air of the air holes to the heat dissipation block. The air inlets, the air holes and the flow guide cover form a second heat dissipation channel for the second electric control board.

[0006] Preferably, the fairing covers the back of the air hole, and the lower end of the fairing is provided with an air outlet gap corresponding to the position of the heat sink, and the air outlet gap partially covers the heat sink.

[0007] Preferably, the air hole is a plurality of waist round holes arranged in horizontal and vertical directions.

[0008] Preferably, the air inlet is located at the lower side of the surface of the box cover, and a rainproof cover is arranged above each air inlet.

[0009] Preferably, the back of the box cover is provided with a partition plate, a wind cavity is formed between the partition plate and the box cover, and the partition plate is provided with an opening opposite the position of the heat dissipation seat. The air flow entering the air inlet blows to the heat dissipation seat through the wind cavity and the opening.

[0010] Preferably, a reversing cover is arranged outside the air outlet, so that the air outlet surface faces the fan in the air conditioner all-in-one machine.

[0011] Compared with the prior art, the air conditioner all-in-one machine electric control box with double heat dissipation channels has the following beneficial effects:

[0012] The first air flow channel is formed by the cooperation of the air inlet, the air flow passing through the air duct, the opening and the heat dissipation cavity of the heat dissipation seat, and the flowability heat dissipation of the first electric control board is realized. The second air flow channel is formed by the cooperation of the air inlet, the air flow passing through the air duct, the opening, the air hole, the fairing and the heat sink, and the flowability heat dissipation of the second electric control board is realized. The upper and lower double channels realize comprehensive and efficient heat dissipation of the electric control boards arranged at different positions in the electric control box.

[0013] The rainproof cover at the air inlet can effectively prevent rainwater from entering, and the internal partition plate realizes secondary protection, which not only blocks dust, but also prevents rainwater from entering the box body from the air inlet by mistake, thereby improving the safety performance of the electric control cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The overall structure of the embodiment of the utility model is opened;

[0015] Figure 2 The internal layout of the box body in the embodiment of the utility model is shown;

[0016] Figure 3 The side view of the box body in the embodiment of the utility model is shown;

[0017] Figure 4 The side view of the box cover in the embodiment of the utility model is shown;

[0018] Figure 5 The structure diagram of the heat dissipation seat in the embodiment of the utility model is shown. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] The utility model discloses a kind of electric control cabinet of air conditioner integrated machine with double heat dissipation channel, it is embedded in air conditioner integrated machine, its structure as Figures 1-2 As shown in the drawing, including box 1 and lid 2, first electric control board (figure not shown) and second electric control board 3 are installed in box, the first electric control board is installed in box with cooperation heat dissipation seat 4, the second electric control board is directly fixed on the wall of box, heat dissipation fin 5 is embedded on the back of box wall, heat dissipation fin is installed with the second electric control board through the wall of box, multiple air holes 11 are set on the wall of box above the second electric control board, air guide cover 6 is equipped on the back of air hole, air hole wind is guided to heat dissipation fin, multiple air inlets 21 are equipped on the surface of lid, heat dissipation cavity 41 is equipped on the back of heat dissipation seat, and air outlet is simultaneously equipped on the side wall of box, the air inlet, heat dissipation cavity, air outlet form first heat dissipation channel to the first electric control board heat dissipation, the air inlet, air hole and flow guide cover form second heat dissipation channel, and the second electric control board is heat dissipated.

[0021] Specifically, the box is rectangular structure, and the four edges of the opening side are provided with flange edges 12, the lid is assembled with the box through the flange edges, and sealing strips are added during assembly to ensure the overall sealing and waterproof performance, the air outlet is further provided with a reversing cover 13 on the side wall of one side of the box, the reversing cover is provided with openings on two adjacent surfaces, and the opening on one side is opposite to the air outlet, and the opening on the other side is opposite to the fan in the air conditioner integrated machine, air is sucked from the air inlet to realize heat dissipation by the suction force generated by the fan.

[0022] As shown in the drawing, Figures 2-3 The air hole is a plurality of transverse and longitudinal arrangement of waist round holes, the flow guide cover provided on the back thereof is provided with air outlet notches 61 corresponding to the position of heat dissipation fin, and the air outlet notches partially cover the heat dissipation fin, so that the airflow blown out of the air hole can only enter the gap of heat dissipation fin, and the heat dissipation fin is air-cooled, and then the second control board is heat dissipated.

[0023] As shown in the drawing, Figure 4As shown, the box cover is provided with a flange edge assembled with the box body, and a guide cover 22 is assembled on the back of the box cover, the guide cover has a baffle, an opening 23 is arranged on the upper end of the baffle and faces the position of the electric control board, the lower end extends to the air inlet, the baffle is bent around to form a connecting plate to realize the connection with the box cover, so that the baffle and the box cover form an airflow passing through the air duct 24, the airflow enters from the air inlet, then flows upwards along the airflow passing through the air duct and blows towards the electric control board from the opening, realizes the heat dissipation of the front surface of the electric control board, enters the heat dissipation cavity on the back of the heat dissipation seat, and finally blows out from the air outlet.

[0024] In use, in order to avoid the entry of external rainwater, a rain cover 25 is arranged above each air inlet, and the connecting plate 26 on the lower side of the baffle is arranged in an inclined manner, and the inclined lower edge is close to the lowermost air inlet, so that the entering airflow can be directionally converted along the inclined connecting plate to realize the guidance, and the water vapor entering along the airflow flows along the inclined connecting plate after impacting the baffle and flows out from the air inlet again.

[0025] The heat dissipation seat structure is as shown in the figure Figure 5 The front surface is in a grid shape 42 and has a raised mounting column 43, the electric control board is assembled on the mounting column in cooperation with a fastener to realize the empty installation of the electric control board, the heat dissipation seat is provided with a limiting structure around, and the electric control board is limited around during installation, the upper and lower end faces of the heat dissipation cavity on the back of the heat dissipation seat are provided with a plurality of air duct inlets 44, one side of the heat dissipation cavity is provided with an air duct outlet 45, and an air outlet is arranged on the side wall of the box body opposite to the air duct outlet, the airflow blown by the guide cover is divided into two directions upwards and downwards along the surface of the electric control board, enters the heat dissipation cavity from the air duct inlets to dissipate heat on the back of the heat dissipation cavity, and finally enters the air outlet from the air duct outlet to be discharged.

[0026] The heat dissipation air conditioner all-in-one machine electric control box of the utility model forms the first airflow channel through the air inlet, airflow passing air duct, opening, heat dissipation cavity of heat dissipation seat mutual cooperation, realizes the flow heat dissipation of first electric control board, forms the second airflow channel through the air inlet, airflow passing air duct, opening, air hole, flow guide cover and fin mutual cooperation, forms the flow heat dissipation of second electric control board, and the comprehensive efficient heat dissipation of electric control board of different position layout in electric control box is realized through the double channels upwards and downwards.

[0027] Finally, it should be noted that: the above embodiments are only preferred embodiments of the utility model, and are not a limitation on the technical solutions of the utility model, and any technical solutions that can be realized on the basis of the above embodiments without creative labor should be considered to fall within the scope of protection of the utility model patent.

Claims

1. An air conditioner all-in-one machine electric control box with double heat dissipation channels, embedded in an air conditioner all-in-one machine, comprising a box body and a box cover, a first electric control board and a second electric control board are installed in the box body in an up-down layout, characterized in that: The box cover surface is provided with a plurality of air inlets, external airflow enters the box body through the air inlets, the first electric control panel is fixed with the heat dissipation seat, the back of the heat dissipation seat has a heat dissipation cavity, and the upper and lower end faces of the heat dissipation cavity are provided with a plurality of air duct inlets, one side of the heat dissipation cavity is provided with an air duct outlet, and the air duct outlet is provided with an air outlet on the side wall of the box body opposite to the air duct outlet, the air inlet, the heat dissipation cavity and the air outlet form a first heat dissipation channel to dissipate heat for the first electric control panel, the second electric control panel is directly fixed on the wall of the box body, and the back of the wall of the box body is embedded with a heat dissipation fin, the heat dissipation fin passes through the wall of the box body and is attached to the second electric control panel, a plurality of air holes are formed in the wall of the box body above the second electric control panel, and the back of the air hole is provided with a flow guide cover to guide the air of the air hole to the heat dissipation block, the air inlet, the air hole and the flow guide cover form a second heat dissipation channel to dissipate heat for the second electric control panel.

2. The electric control box of the all-in-one air conditioner with double heat dissipation channels according to claim 1, characterized in that: The flow guide cover covers the back of the air hole, and the lower end of the flow guide cover is provided with an air outlet gap corresponding to the position of the heat dissipation fin, and the air outlet gap partially covers the heat dissipation fin.

3. The electric control box of the all-in-one air conditioner with double heat dissipation channels according to claim 1, characterized in that: The air hole is a plurality of waist round holes arranged in horizontal and vertical directions.

4. The electric control box of the all-in-one air conditioner with double heat dissipation channels according to claim 1, characterized in that: The air inlet is located on the lower side of the box cover surface, and a rain cover is arranged above each air inlet.

5. The electric control box of the all-in-one air conditioner with double heat dissipation channels according to claim 4, characterized in that: The back of the box cover is provided with a partition plate, a wind cavity is formed between the partition plate and the box cover, and the partition plate is provided with an opening opposite to the heat dissipation seat, the airflow entering through the air inlet blows to the heat dissipation seat through the wind cavity and the opening.

6. The electric control box of the all-in-one air conditioner with double heat dissipation channels according to claim 1, characterized in that: The air outlet is provided with a reversing cover outside, so that the air outlet surface is opposite to the fan in the air conditioner all-in-one machine.

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