CN115435486A - Automatically controlled box heat dissipation mechanism and air conditioner - Google Patents

Abstract

The invention discloses an electric control box heat dissipation mechanism and an air conditioner, and relates to the technical field of air conditioners. This automatically controlled box heat dissipation mechanism is applied to air conditioner indoor unit, and air conditioner indoor unit includes the casing and installs the air-out mechanism on the casing, and automatically controlled box heat dissipation mechanism includes automatically controlled box and radiator, and automatically controlled box is used for installing on the casing, and sets up in one side of air-out mechanism, and the radiator is connected with automatically controlled box, and the radiator sets up between automatically controlled box and air-out mechanism, and the radiator can dispel the heat under the effect of the air-out air current that air-out mechanism produced. Compared with the prior art, the heat dissipation mechanism of the electric control box provided by the invention adopts the radiator arranged between the electric control box and the air outlet mechanism, so that the heat dissipation efficiency of the electric control box can be improved, the heat dissipation effect is enhanced, the temperature rise of heating components is reduced, and the service life of the heating components is prolonged.

Description

Automatically controlled box heat dissipation mechanism and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an electric control box heat dissipation mechanism and an air conditioner.

Background

At present, the electric control box structure of the traditional air conditioner internal unit adopts a fully-closed design, a radiator is arranged in the electric control box, the heat dissipation efficiency is low, the heat dissipation effect is poor, the temperature rise of a heating component on an electric control plate is high, and the service life of the heating component is influenced.

Disclosure of Invention

The invention solves the problems of improving the heat dissipation efficiency of the electric control box, enhancing the heat dissipation effect, reducing the temperature rise of heating components and prolonging the service life of the heating components.

In order to solve the problems, the technical scheme of the invention is realized as follows:

in a first aspect, the invention provides an electric control box heat dissipation mechanism, which is applied to an air conditioner indoor unit, wherein the air conditioner indoor unit comprises a shell and an air outlet mechanism arranged on the shell, the electric control box heat dissipation mechanism comprises an electric control box and a radiator, the electric control box is arranged on the shell and arranged on one side of the air outlet mechanism, the radiator is connected with the electric control box, the radiator is arranged between the electric control box and the air outlet mechanism, and the radiator can dissipate heat under the action of air outlet flow generated by the air outlet mechanism. Compared with the prior art, the heat dissipation mechanism of the electric control box provided by the invention adopts the heat radiator arranged between the electric control box and the air outlet mechanism, so that the heat dissipation efficiency of the electric control box can be improved, the heat dissipation effect is enhanced, the temperature rise of heating components is reduced, and the service life of the heating components is prolonged.

Further, automatically controlled box includes box body, lid and automatically controlled board, and the box body can be dismantled with the lid and be connected, and encloses into the holding cavity jointly, and automatically controlled board fixed mounting has seted up the mounting hole in the holding cavity, mounting hole and holding cavity intercommunication, and the radiator is installed in the mounting hole. The radiator can absorb the heat of the electric control board through the mounting hole so as to ensure the stable operation of the electric control board.

Furthermore, the electric control board is provided with a heating element, and the heating element is attached to the radiator. The heat dissipation efficiency of the heating element is further improved, and the stable operation of the heating element is guaranteed.

Further, the electronic control box further comprises a sealing piece, and the sealing piece is arranged between the radiator and the side wall of the mounting hole. The sealing element can seal the gap between the side wall of the radiator and the side wall of the mounting hole to prevent condensed water or water vapor from entering the accommodating cavity, so that the damp condition of the electric control board is avoided, and the electric safety is ensured.

Furthermore, the electric control board is provided with an electric wire, the box body is provided with a wiring groove communicated with the containing cavity, the electric wire penetrates through the wiring groove, and the box cover is attached to the box body to seal the wiring groove. Thereby spacing the electric wire in the trough, prevent that the electric wire from deviating from the trough.

Furthermore, the quantity of electric wire and trough is a plurality ofly, and a plurality of trough intervals set up on the box body, and every electric wire is worn to locate in a trough. The wiring device has the advantages that independent wiring of a plurality of wires is achieved, mutual interference among the wires is prevented, and stability and reliability of an electric control process are guaranteed.

Furthermore, the box body is provided with a wire passing channel, the wire passing channel is communicated with the wire distributing groove, and a limiting rib is arranged in the wire passing channel and used for limiting the electric wire. In order to hold the electric wire card in passing the wire duct, the position of electric wire can be injectd to spacing muscle, prevents that the electric wire from deviating from passing the wire duct.

Furthermore, one side of the electric control box close to the radiator is provided with a stop plate, the stop plate is provided with a heat dissipation hole for ventilation and heat dissipation, the stop plate is arranged around the radiator, and the stop plate is used for preventing the radiator from contacting with an electric wire or a copper pipe. Thereby prevent that the radiator from causing the damage to electric wire or copper pipe to avoid causing the influence to the radiating efficiency of radiator.

Furthermore, the radiator is an aluminum radiator, the radiator is provided with a radiating groove, and the extending direction of the radiating groove is the same as the air outlet direction of the air outlet mechanism. The air-out air current that air-out mechanism produced can flow along the radiating groove to take away the heat on the radiator fast, and the radiator can not lead to the fact to sheltering from to the air-out air current, avoid causing the influence to air output and air-out efficiency.

In a second aspect, the invention provides an air conditioner, which comprises a housing, an air outlet mechanism and the electric control box heat dissipation mechanism, wherein the air outlet mechanism is mounted on the housing, the electric control box heat dissipation mechanism comprises an electric control box and a heat radiator, the electric control box is used for being mounted on the housing and arranged on one side of the air outlet mechanism, the heat radiator is connected with the electric control box, the heat radiator is arranged between the electric control box and the air outlet mechanism, and the heat radiator can dissipate heat under the action of air outlet flow generated by the air outlet mechanism. The air conditioner can improve the radiating efficiency of automatically controlled box, strengthens the radiating effect, reduces the temperature rise of components and parts that generate heat, prolongs the life of components and parts that generate heat.

Drawings

Fig. 1 is a schematic structural diagram of an electric control box heat dissipation mechanism applied to an air conditioner indoor unit according to a first embodiment of the present invention;

fig. 2 is an exploded view of the heat dissipation mechanism of the electronic control box according to the first embodiment of the present invention;

fig. 3 is a schematic structural view illustrating a connection between a heat sink and an electronic control box in the heat dissipation mechanism for an electronic control box according to the first embodiment of the present invention;

FIG. 4 is a schematic view of the first view of the cassette of FIG. 2;

FIG. 5 is a schematic diagram of the second perspective view of the cassette of FIG. 2;

FIG. 6 is a schematic diagram of the third perspective view of the cassette of FIG. 2;

fig. 7 is a structural schematic view of the box cover in fig. 2.

Description of the reference numerals:

10-air conditioner indoor unit; 100-an electronic control box heat dissipation mechanism; 110-an electronic control box; 111-a cartridge; 1111-a first side panel; 11111-fixing fastener; 11112-convex hull; 1112-a second side panel; 1113-a third side plate; 11131-limit table; 11132-limit groove; 1114-a fourth side panel; 1115-a backplane; 11151-bolt fixing column; 112-box cover; 1121-snap ring; 1122-card table; 113-an electronic control board; 114-a receiving cavity; 115-mounting holes; 116-a heat generating component; 117-cabling channel; 1171-a first raceway; 1172-a second cabling channel; 1173-a third raceway; 1174-crimp cap; 1175-a stop bar; 118-a wire-passing channel; 1181-a limiting rib; 119-a stop plate; 1191-a first stop plate; 1192-a second stop plate; 1193-heat dissipation holes; 120-a heat sink; 121-heat sink; 122-a base; 123-a heat sink plate; 200-a housing; 300-an air outlet mechanism; 310-a fan; 320-evaporator.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

First embodiment

Referring to fig. 1 and fig. 2 in combination, an embodiment of the invention provides a heat dissipation mechanism 100 for an electronic control box 110. The heat dissipation efficiency of the electric control box 110 can be improved, the heat dissipation effect is enhanced, the temperature rise of the heating element 116 is reduced, and the service life of the heating element 116 is prolonged.

It should be noted that the heat dissipation mechanism 100 of the electronic control box is applied to the air conditioner internal unit 10, the air conditioner internal unit 10 includes a casing 200 and an air outlet mechanism 300 installed on the casing 200, and the air outlet mechanism 300 is used for blowing out an air outlet flow to the outside of the casing 200. The electric control box heat dissipation mechanism 100 is installed on the housing 200 and is disposed on one side of the air outlet mechanism 300, and the outlet air flow generated during the operation of the air outlet mechanism 300 sweeps over the surface of the electric control box heat dissipation mechanism 100 to take away the heat of the electric control box heat dissipation mechanism 100, thereby improving the heat dissipation efficiency and enhancing the heat dissipation effect.

Specifically, the air outlet mechanism 300 includes a fan 310 and an evaporator 320, the fan 310 is configured to generate a negative pressure, so that the outside air passes through the evaporator 320 and enters the fan 310, and an air outlet flow is formed, and in this process, the evaporator 320 can exchange heat with the air outlet flow, so that the air outlet flow realizes a heating or cooling function.

The electronic control box heat dissipation mechanism 100 includes an electronic control box 110 and a heat sink 120. The electric control box 110 is used for being mounted on the casing 200 and disposed on one side of the air outlet mechanism 300, and the electric control box 110 is used for realizing an electric control function of the air conditioner internal unit 10. Radiator 120 is connected with automatically controlled box 110, and radiator 120 is used for dispelling the heat and cooling to automatically controlled box 110, and radiator 120 sets up between automatically controlled box 110 and air-out mechanism 300, and radiator 120 can dispel the heat under the effect of the air-out air current that air-out mechanism 300 produced. Specifically, the air outlet flow generated by the air outlet mechanism 300 can pass through the heat sink 120 to take away the heat of the heat sink 120, so that the temperature of the heat sink 120 is reduced, and the heat of the electronic control box 110 can be quickly absorbed after the heat sink 120 is cooled, thereby greatly improving the heat dissipation efficiency of the heat sink 120 and ensuring the stable operation of the electronic control box 110.

In this embodiment, the heat sink 120 is disposed outside the electrical control box 110 and extends into the air outlet mechanism 300, and the air outlet flow generated by the air outlet mechanism 300 can quickly take away the heat on the heat sink 120. Compared with the technical scheme that the radiator 120 is arranged in the electronic control box 110 and the heat of the radiator 120 cannot be dissipated timely in the prior art, the electronic control box heat dissipation mechanism 100 in the embodiment has the advantages of high heat dissipation efficiency, good heat dissipation effect and long service life.

The electronic control box 110 includes a box body 111, a box cover 112, an electronic control board 113, and a sealing member (not shown). The case body 111 is detachably coupled to the case cover 112 for easy installation and maintenance. The box body 111 and the box cover 112 jointly enclose a containing cavity 114, the electric control board 113 is fixedly arranged in the containing cavity 114, and the box body 111 and the box cover 112 can shield and protect the electric control board 113. The box body 111 is provided with a mounting hole 115, the mounting hole 115 is communicated with the accommodating cavity 114, the radiator 120 is mounted in the mounting hole 115, and the radiator 120 can absorb heat of the electric control board 113 through the mounting hole 115 so as to ensure stable operation of the electric control board 113. The sealing element is arranged between the side walls of the radiator 120 and the mounting hole 115, and the sealing element can seal a gap between the side walls of the radiator 120 and the mounting hole 115 so as to prevent condensed water or vapor generated by the operation of the evaporator 320 from entering the accommodating cavity 114, thereby avoiding the occurrence of the damp condition of the electric control board 113 and ensuring the electrical safety.

It should be noted that the electronic control board 113 is provided with the heating component 116, the position of the heating component 116 corresponds to the position of the mounting hole 115, and the heat sink 120 installed in the mounting hole 115 can quickly take away the heat of the heating component 116, so as to reduce the temperature rise of the heating component 116 and prolong the service life of the heating component 116. In this embodiment, the heating element 116 and the heat sink 120 are attached to each other, so as to further improve the heat dissipation efficiency of the heating element 116 and ensure the stable operation of the heating element 116.

In this embodiment, the sealing element is a sealant, after the heat sink 120 is installed in the installation hole 115, the sealant is coated around the edge of the heat sink 120, and the sealant is disposed between the heat sink 120 and the sidewall of the installation hole 115 to seal a gap between the heat sink 120 and the sidewall of the installation hole 115. However, the present invention is not limited to this, and in other embodiments, the sealing member may be a rubber seal, or may be a bent physical sealing structure, and the form of the sealing member is not particularly limited.

It should be noted that the electric control board 113 is provided with an electric wire (not shown), and the electric control board 113 realizes an electric control function through the electric wire. The box body 111 is provided with a wiring groove 117 communicated with the accommodating cavity 114, wires penetrate through the wiring groove 117, the box cover 112 is attached to the box body 111 to seal the wiring groove 117, so that the wires in the wiring groove 117 are limited, and the wires are prevented from falling out of the wiring groove 117.

In the process of installing the electrical control box 110, the electrical control board 113 is first fixedly installed in the box body 111, then the wires are placed in the wire-routing slots 117 and are passed out, and then the box cover 112 is covered on the box body 111 and is connected with the box body 111, so as to seal the wire-routing slots 117 and prevent the wires from falling out of the wire-routing slots 117. Therefore, the installation process of the electric control box 110 is convenient and quick, and the installation efficiency is high.

Referring to fig. 3 and 4, further, the number of the wires and the wiring slots 117 is multiple, the plurality of wiring slots 117 are disposed on the box body 111 at intervals, and each wire is inserted into one wiring slot 117, so as to implement independent wiring of the plurality of wires, prevent mutual interference among the plurality of wires, and ensure a stable and reliable electrical control process. In this embodiment, the number of the electric wires is three, the three electric wires are a strong electric wire, a weak electric wire and an electric heating wire, the number of the wiring grooves 117 is three, and the three electric wires are a first wiring groove 1171, a second wiring groove 1172 and a third wiring groove 1173, the strong electric wire is inserted into the first wiring groove 1171, the weak electric wire is inserted into the second wiring groove 1172, and the electric heating wire is inserted into the third wiring groove 1173. However, the number of the wires and the wiring grooves 117 is not limited to two, and may be four in other embodiments.

In this embodiment, a wire pressing cover 1174 is disposed in the first wire trough 1171, the wire pressing cover 1174 is detachably connected to the box 111 through screws, and the wire pressing cover 1174 is used for pressing the strong electric wire into the first wire trough 1171, so as to further limit the position of the strong electric wire and prevent the strong electric wire from dropping out of the first wire trough 1171.

In this embodiment, a stop strip 1175 is disposed on a side wall of the second wiring slot 1172, and the stop strip 1175 is used for clamping the weak current electric wire in the second wiring slot 1172, so as to further limit the position of the weak current electric wire and prevent the weak current electric wire from coming out of the second wiring slot 1172.

In this embodiment, the box body 111 is provided with a wire passing channel 118, and the wire passing channel 118 is used for a power supply wire to pass through so as to facilitate the routing of the power wire. Specifically, the wire passage 118 communicates with the third wire trough 1173, and the electrical heating wire can enter the wire passage 118 through the third wire trough 1173. Limiting ribs 1181 are arranged in the wire passing channel 118, the limiting ribs 1181 are used for limiting the electric heating wire so as to clamp the electric heating wire in the wire passing channel 118, and the limiting ribs 1181 can limit the position of the electric heating wire so as to prevent the electric heating wire from dropping out of the wire passing channel 118.

It should be noted that a side of the box body 111 of the electronic control box 110 close to the heat sink 120 is provided with a stop plate 119, the stop plate 119 is disposed around the heat sink 120, and the stop plate 119 is used to prevent the heat sink 120 from contacting with the wires or the copper tubes on the evaporator 320, so as to prevent the heat sink 120 from damaging the wires or the copper tubes (not shown). Specifically, the stop plate 119 is provided with heat dissipation holes 1193 for ventilation and heat dissipation, so as to avoid affecting the heat dissipation efficiency of the heat sink 120.

In this embodiment, the stop plate 119 includes a first stop plate 1191 and a second stop plate 1192. The first stop plate 1191 is obliquely disposed on the box body 111 and connected to the wire passage 118, and the first stop plate 1191 is used to separate the heat sink 120 from the electric heating wire to prevent the heat sink 120 from damaging the electric heating wire. The second stop plate 1192 is vertically disposed on the box 111, and the second stop plate 1192 is used to separate the heat sink 120 from the copper tubes on the evaporator 320, so as to prevent the heat sink 120 from damaging the copper tubes.

Referring to fig. 5, 6 and 7, the box 111 includes a first side plate 1111, a second side plate 1112, a third side plate 1113, a fourth side plate 1114 and a bottom plate 1115. The first side plate 1111, the second side plate 1112, the third side plate 1113 and the fourth side plate 1114 are connected end to end and are all fixedly connected with the bottom plate 1115, the bottom plate 1115 and the box cover 112 are arranged in parallel at intervals, and the electric control plate 113 and the bottom plate 1115 are arranged in parallel and are arranged between the bottom plate 1115 and the box cover 112. Specifically, the mounting holes 115 are opened on the bottom plate 1115, the heat sink 120 is mounted on the outer side of the bottom plate 1115, the screw fixing posts 11151 are arranged on the inner side of the bottom plate 1115, and the electronic control board 113 is fixedly connected to the screw fixing posts 11151 through screws, so that the heat sink 120 and the heat generating component 116 are attached to each other.

Further, the inner side of the first side plate 1111 is provided with a fixing buckle 11111, the inner side of the third side plate 1113 is provided with a limiting table 11131, one end of the electric control plate 113 is clamped with the fixing buckle 11111, the other end of the electric control plate abuts against the limiting table 11131, and the fixing buckle 11111 and the limiting table 11131 act together to further limit the position of the electric control plate 113 and prevent the electric control plate 113 from displacing relative to the box body 111.

In this embodiment, the convex protrusion 11112 is disposed on the outer side of the first side plate 1111, the limiting groove 11132 is disposed on the inner side of the third side plate 1113, a clamping ring 1121 is disposed at one end of the box cover 112, and a clamping platform 1122 is disposed at the other end of the box cover. The convex hull 11112 is held in the retaining ring 1121, and the retaining platform 1122 extends into the limiting groove 11132 and cooperates with the limiting groove 11132 to fix the relative positions of the box cover 112 and the box body 111, so as to prevent the box cover 112 from moving relative to the box body 111, thereby achieving the detachable connection between the box cover 112 and the box body 111.

Referring to fig. 2, in the present embodiment, the heat sink 120 is an aluminum heat sink 120, the heat sink 120 is provided with a heat dissipating groove 121, an extending direction of the heat dissipating groove 121 is the same as an air outlet direction of the air outlet mechanism 300, the air outlet flow generated by the air outlet mechanism 300 can flow along the heat dissipating groove 121 to take away heat on the heat sink 120 quickly, and the heat sink 120 does not shield the air outlet flow, thereby avoiding an influence on the air outlet volume and the air outlet efficiency.

Specifically, the heat sink 120 includes a base 122 and a plurality of heat dissipation plates 123. The base 122 is installed in the mounting hole 115, and is attached to the heat-generating component 116, and the plurality of heat-dissipating plates 123 are both fixedly connected to the base 122 and are disposed on one side of the base 122 away from the heat-generating component 116. In this embodiment, the number of the heat dissipation grooves 121 is plural, one heat dissipation groove 121 is formed between two adjacent heat dissipation plates 123, and the air outlet flow can pass through the plurality of heat dissipation grooves 121 at the same time, so as to further improve the heat dissipation effect of the heat sink 120.

The electronic control box heat dissipation mechanism 100 according to the embodiment of the present invention is applied to an air conditioner indoor unit 10, the air conditioner indoor unit 10 includes a casing 200 and an air outlet mechanism 300 installed on the casing 200, the electronic control box 110 is installed on the casing 200 and is arranged on one side of the air outlet mechanism 300, the heat sink 120 is connected to the electronic control box 110, the heat sink 120 is arranged between the electronic control box 110 and the air outlet mechanism 300, and the heat sink 120 can dissipate heat under the action of an air outlet flow generated by the air outlet mechanism 300. Compared with the prior art, the heat dissipation mechanism 100 for the electronic control box provided by the invention adopts the heat radiator 120 arranged between the electronic control box 110 and the air outlet mechanism 300, so that the heat dissipation efficiency of the electronic control box 110 can be improved, the heat dissipation effect can be enhanced, the temperature rise of the heating component 116 can be reduced, and the service life of the heating component 116 can be prolonged.

Second embodiment

The present invention provides an air conditioner (not shown) for regulating indoor air temperature. The air conditioner comprises an air conditioner internal unit 10 and an air conditioner external unit (not shown), wherein the air conditioner internal unit 10 comprises an electric control box heat dissipation mechanism 100, a shell 200 and an air outlet mechanism 300. The basic structure and principle of the heat dissipation mechanism 100 of the electronic control box and the generated technical effects are the same as those of the first embodiment, and for the sake of brief description, no part of this embodiment is mentioned, and reference may be made to the corresponding contents in the first embodiment.

It should be noted that the air conditioner internal unit 10 is installed indoors, the air conditioner external unit is installed outdoors, and the air conditioner internal unit 10 is connected with the air conditioner external unit and cooperates with the air conditioner external unit to achieve the function of heating or cooling indoors. In the air conditioner internal unit 10, the electric control box 110 and the air outlet mechanism 300 are both mounted on the casing 200, the electric control box 110 is used for realizing the electric control function of the air conditioner internal unit 10, and the air outlet mechanism 300 is used for realizing the heat exchange and air outlet functions of the air conditioner internal unit 10. The heat radiator 120 is connected with the electronic control box 110 and is arranged between the electronic control box 110 and the air outlet mechanism 300, and the air outlet flow generated in the operation process of the air outlet mechanism 300 sweeps over the surface of the heat radiator 120 to take away the heat of the heat radiator 120, so that the heat radiator 120 can quickly radiate the electronic control box 110, the heat radiation efficiency of the electronic control box 110 is improved, and the heat radiation effect is enhanced.

In this embodiment, the air conditioner is an air conditioner hanging machine, but the air conditioner is not limited thereto, and the air conditioner may be a cabinet air conditioner or a mobile air conditioner, and the type of the air conditioner is not particularly limited.

The beneficial effects of the air conditioner according to the embodiment of the present invention are the same as those of the first embodiment, and are not described herein again.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The utility model provides an automatically controlled box heat dissipation mechanism, is applied to air conditioner indoor set (10), air conditioner indoor set (10) include casing (200) and install air-out mechanism (300) on casing (200), its characterized in that, automatically controlled box heat dissipation mechanism includes automatically controlled box (110) and radiator (120), automatically controlled box (110) be used for install in on casing (200), and set up in one side of air-out mechanism (300), radiator (120) with automatically controlled box (110) are connected, radiator (120) set up in automatically controlled box (110) with between air-out mechanism (300), radiator (120) can dispel the heat under the effect of the air-out air current that air-out mechanism (300) produced.

2. The heat dissipation mechanism of an electric control box according to claim 1, wherein the electric control box (110) includes a box body (111), a box cover (112) and an electric control board (113), the box body (111) and the box cover (112) are detachably connected and together define a receiving cavity (114), the electric control board (113) is fixedly installed in the receiving cavity (114), the box body (111) is provided with a mounting hole (115), the mounting hole (115) is communicated with the receiving cavity (114), and the heat sink (120) is installed in the mounting hole (115).

3. The heat dissipation mechanism of an electric control box according to claim 2, wherein a heat generating component (116) is disposed on the electric control board (113), and the heat generating component (116) is attached to the heat sink (120).

4. The heat dissipation mechanism of an electronic control box according to claim 2, wherein the electronic control box (110) further comprises a sealing member disposed between the heat sink (120) and a sidewall of the mounting hole (115).

5. The heat dissipation mechanism of an electric control box according to claim 2, wherein the electric control board (113) is provided with an electric wire, the box body (111) is provided with a wire slot (117) communicated with the accommodating cavity (114), the electric wire is arranged in the wire slot (117) in a penetrating manner, and the box cover (112) is attached to the box body (111) to seal the wire slot (117).

6. The heat dissipation mechanism of an electric control box according to claim 5, wherein the number of the wires and the wiring slots (117) is multiple, the wiring slots (117) are arranged on the box body (111) at intervals, and each wire is inserted into one wiring slot (117).

7. The heat dissipation mechanism of an electric control box according to claim 5, wherein the box body (111) is provided with a wire passage (118), the wire passage (118) is communicated with the wire trough (117), a limiting rib (1181) is arranged in the wire passage (118), and the limiting rib (1181) is used for limiting the electric wire.

8. The electronic control box heat dissipation mechanism according to claim 1, wherein a stop plate (119) is disposed on a side of the electronic control box (110) close to the heat sink (120), heat dissipation holes (1193) for ventilation and heat dissipation are opened on the stop plate (119), the stop plate (119) is disposed around the heat sink (120), and the stop plate (119) is used for preventing the heat sink (120) from contacting with wires or copper pipes.

9. The electronic control box heat dissipation mechanism according to claim 1, wherein the heat sink (120) is an aluminum heat sink (120), the heat sink (120) is provided with a heat dissipation groove (121), and an extension direction of the heat dissipation groove (121) is the same as an air outlet direction of the air outlet mechanism (300).

10. An air conditioner characterized by comprising the heat dissipation mechanism of the electric control box as claimed in any one of claims 1 to 9.

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