CN115704582A - Automatically controlled box, air condensing units and air conditioner - Google Patents

Abstract

The invention discloses an electric control box, an air conditioner outdoor unit and an air conditioner, relates to the technical field of air conditioners, and aims to solve the technical problem that electronic components are short in service life. The electric control box comprises a box body and an installation plate arranged in the box body, wherein a first fan and a plurality of electronic components are arranged on the installation side of the installation plate, the first fan is used for forming first heat dissipation airflow flowing along a first heat dissipation path, and the first heat dissipation airflow is turned by the inner wall of the box body to form second heat dissipation airflow flowing along a second heat dissipation path; the plurality of electronic components are distributed on a first heat dissipation path and a second heat dissipation path, and the first heat dissipation path and the second heat dissipation path are located on the installation side of the installation plate. The air condensing units includes above-mentioned automatically controlled box. The air conditioner comprises the air conditioner outdoor unit. The electric control box is used for an air conditioner outdoor unit, the air conditioner outdoor unit is used for being matched with an air conditioner indoor unit to work, and the air conditioner is used for adjusting parameters such as air temperature, humidity and flow velocity in a building or a structure.

Description

Automatically controlled box, air condensing units and air conditioner

Technical Field

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

Background

An air conditioner is a device that adjusts and controls parameters such as temperature, humidity, and flow rate of ambient air in a building or structure by manual means. An air conditioner generally includes an electric control box, and electronic components such as a filter and a reactor are disposed in the electric control box. However, the heat generated during the operation of the electronic component may increase the temperature of the electronic component, which may affect the operation stability of the electronic component.

Disclosure of Invention

The invention mainly aims to provide an electric control box, an air conditioner outdoor unit and an air conditioner, which are used for improving the working reliability of electronic components.

In order to achieve the purpose, the electric control box provided by the invention comprises a box body and an installation plate arranged in the box body, wherein a first fan and a plurality of electronic components are arranged on the installation side of the installation plate, the first fan is used for forming first heat dissipation airflow flowing along a first heat dissipation path, and the first heat dissipation airflow is turned by the inner wall of the box body to form second heat dissipation airflow flowing along a second heat dissipation path; the plurality of electronic components are distributed on the first heat dissipation path and the second heat dissipation path, and the first heat dissipation path and the second heat dissipation path are located on the installation side of the installation plate.

The beneficial effects of the invention are: the first fan is arranged to form first heat dissipation airflow flowing along the first heat dissipation path, and the first heat dissipation airflow turns through the inner wall of the box body to form second heat dissipation airflow flowing along the second heat dissipation path; through distributing a plurality of electronic components in first heat dissipation route and second heat dissipation way strength, can realize that the heat that electronic components during operation produced is taken away by first heat dissipation air current and second heat dissipation air current, the temperature of electronic components during operation is in reliable temperature range, and electronic components's job stabilization nature is high.

On the basis of the technical scheme, the invention can be further improved as follows.

Furthermore, the first heat dissipation path and the second heat dissipation path are communicated end to end in sequence to form a circulating heat dissipation path.

Further, the mounting plate divides the space in the box body into a first chamber and a second chamber, and the plurality of electronic components are arranged in the first chamber; a heat exchanger is arranged in the second chamber.

Furthermore, a first air return opening and a second air return opening which penetrate through the mounting plate are arranged on the mounting plate, the first air return opening is located at the head end of the first heat dissipation path, and the second air return opening is located at the tail end of the second heat dissipation path.

Further, an inlet of the first fan is communicated with the first air return opening, and an outlet of the first fan is opposite to the head end of the first heat dissipation path.

Further, the mounting panel is the rectangular plate, and first return air inlet is located the first corner of rectangular plate, and the second return air inlet is located the second corner of rectangular plate, and second corner and first corner are located the both ends of the same diagonal of rectangular plate.

Furthermore, the number of the second air return openings is multiple, and the multiple second air return openings are distributed at intervals along the first edge of the mounting plate; the first air return opening is formed in the second edge of the mounting plate, and the first edge and the second edge are arranged oppositely.

Further, the electronic control box further comprises a second fan, and the second fan is arranged on the first heat dissipation path or the second heat dissipation path.

Further, the second fan is arranged at the head end of the second heat dissipation path.

Further, the second fan is arranged at the tail end of the second heat dissipation path; the air outlet directions of the first fan and the second fan are not intersected, and the second fan is used for forming third heat dissipation airflow flowing along a third heat dissipation path.

Further, the plurality of electronic components disposed on the mounting side of the mounting board include a filter and a reactor, which are distributed on the first heat dissipation path.

Further, the box body is a sealed box body.

The invention also provides an air conditioner outdoor unit which comprises the electric control box in any technical scheme.

The invention also provides an air conditioner which comprises the air conditioner outdoor unit adopting any technical scheme.

The air conditioner outdoor unit and the air conditioner have the same beneficial effects as the electric control box, and are not described again.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a first structural schematic diagram of an electric control box according to an embodiment of the present invention;

fig. 2 is a second structural schematic diagram of the electronic control box according to the embodiment of the invention;

fig. 3 is a third schematic structural diagram of the electronic control box according to the embodiment of the present invention;

fig. 4 is a fourth schematic structural diagram of the electronic control box according to the embodiment of the invention;

fig. 5 is a schematic structural diagram of an electric control box according to an embodiment of the present invention;

fig. 6 is a sixth schematic structural diagram of an electronic control box according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a mounting plate according to an embodiment of the present invention;

fig. 8 is an exploded view of an electrical control box according to an embodiment of the present invention;

fig. 9 is a seventh structural schematic diagram of the electronic control box according to the embodiment of the invention;

fig. 10 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Box body	110	The first chamber
120	Second chamber	130	Box body
				131	Bottom plate	132	Side plate
133	First through hole	134	Second through hole
				140	Box cover	200	Mounting plate
210	First return air inlet	220	Second air return inlet
				300	First fan	400	Electronic component
410	Electric reactor	420	Filter
				500	Heat exchanger	510	Refrigerant heat exchanging part
520	Refrigerant inlet pipe	530	Refrigerant output pipe
				600	Expansion board	700	Module board
800	Second fan	900	Outer cover

Detailed Description

In the related art, electronic components are arranged in the electronic control box, and can be a filter, a reactor and the like, and the electronic components can generate heat in the using process, so that the temperature of the electronic components is high, the working reliability of the electronic components is further reduced, and therefore the electronic components need to be cooled.

In view of this, in the electronic control box according to the embodiment of the invention, the first fan is arranged, the first fan is used to form the first heat dissipation airflow, the first heat dissipation airflow is turned to form the second heat dissipation airflow after passing through the blocking effect of the box body, and the first heat dissipation airflow and the second heat dissipation airflow are used to take away heat on the electronic component, so that the electronic component is cooled, and the electronic component has high working reliability.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The electronic control box of the embodiment of the application can be a closed electronic control box. Therefore, other foreign matters such as water drops and dust can be prevented from entering the electric control box to damage electronic elements in the electric control box, and the waterproof, dustproof and anticorrosive effects are achieved.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, an embodiment of the invention provides an electrical control box, which includes a box body 100, a mounting plate 200, a first fan 300 and an electronic component 400. The mounting plate 200 and the first fan 300 are disposed inside the box 100, and the box 100 is used for protecting the mounting plate 200 and the first fan 300. The mounting board 200 is used to mount the first fan 300 and the electronic component 400. The first fan 300 is used to drive the air flow in the box 100 and form a first heat dissipation air flow.

Referring to fig. 1, a first heat dissipation airflow generated by the first fan 300 flows along a first heat dissipation path, and when the first heat dissipation airflow flows to an inner wall of the box 100, the first heat dissipation airflow turns to form a second heat dissipation airflow, and the second heat dissipation airflow flows along a second heat dissipation path. The included angle between the first heat dissipation path and the second heat dissipation path may be any non-zero angle, such as 60 ° shown in fig. 1.

The electronic component 400 is disposed on the mounting side of the mounting board 200. In some embodiments, electronic component 400 may be mounted on the mounting side of mounting board 200 by means of screws, and in other embodiments, electronic component 400 may be mounted on the mounting side of mounting board 200 by means of soldering.

The number of the electronic components 400 is plural, and the plurality of electronic components 400 are disposed on the first heat dissipation path and the second heat dissipation path. The first heat dissipation airflow flowing on the first heat dissipation path takes away heat generated when the electronic component 400 arranged on the first heat dissipation path works, and then cools the electronic component 400 arranged on the first heat dissipation path. The second heat dissipation airflow flowing on the second heat dissipation path takes away heat generated when the electronic component 400 arranged on the second heat dissipation path works, and then cools the electronic component 400 arranged on the second heat dissipation path.

According to the electric control box provided by the embodiment of the invention, the first fan 300 is arranged, the first fan 300 is utilized to form the first heat dissipation airflow flowing along the first heat dissipation path, the flowing direction of the first heat dissipation airflow is changed and further turned after the first heat dissipation airflow flows to the inner wall of the box body 100, the second heat dissipation airflow flowing along the second heat dissipation path is formed, and the first heat dissipation airflow and the second heat dissipation airflow are utilized to take away heat generated when the electronic components 400 arranged on the first heat dissipation path and the second heat dissipation path work, so that the temperature of the electronic components 400 is in a reliable temperature range, and the working reliability of the electronic components 400 is improved.

In some embodiments, the first heat dissipation path and the second heat dissipation path are in serial communication end to end, and the first heat dissipation path and the second heat dissipation path form a circulating heat dissipation path. The circulating heat dissipation path is located in the box body 100, the tail end of the first heat dissipation airflow flowing on the circulating heat dissipation path is connected with the head end of the second heat dissipation airflow, the head end of the first heat dissipation path flowing on the circulating heat dissipation path is connected with the tail end of the second heat dissipation airflow, the first heat dissipation airflow and the second heat dissipation airflow form circulating airflow, and the circulating airflow is located in the box body 100. At this time, the first and second heat dissipating airflows exchange heat with the electronic component 400 and the box 100, and thus, the heat generated when the electronic component 400 operates is replaced to the outside of the box 100.

In some embodiments, the first heat dissipation path and the second heat dissipation path may not form a circulation path, and in this embodiment, the first heat dissipation airflow and the second heat dissipation airflow do not form a circulation airflow.

Referring to fig. 4, 5 and 6, the mounting plate 200 divides the space in the box body 100 into a first chamber 110 and a second chamber 120, the plurality of electronic components 400 are disposed in the first chamber 110, the first heat dissipation airflow and the second heat dissipation airflow are disposed in the first chamber 110, and the heat exchanger 500 is disposed in the second chamber 120.

Referring to fig. 4 and 7, the mounting plate 200 is provided with a first air return opening 210 and a second air return opening 220. The shape and size of the first air return opening 210 are not particularly limited, and the first air return opening 210 is a through hole, and both ends of the first air return opening 210 are communicated with the first chamber 110 and the second chamber 120. The shape and size of the second air return opening 220 are not particularly limited, the second air return opening 220 is a through hole, and both ends of the second air return opening 220 are communicated with the first chamber 110 and the second chamber 120. The first air return opening 210 is located at the head end of the first heat dissipation path, and the second air return opening 220 is located at the tail end of the second heat dissipation path.

When the first fan 300 operates, the first fan 300 drives the air in the second chamber 120 into the first chamber 110 through the first air return opening 210, and forms a first heat dissipation air flow flowing along the first heat dissipation path, the first heat dissipation air flow turns through the inner wall of the box body to form a second heat dissipation air flow flowing along the second heat dissipation path, the second heat dissipation air flow enters the first chamber 110 through the second air return opening 220, and thus, a circulation air flow inside the box body 100 is formed, and the circulation air flow circulates in the first chamber 110 and the second chamber 120.

The first and second heat dissipation airflows in the first chamber 110 exchange heat with the electronic component 400 in the first chamber 110, and heat generated by the electronic component 400 during operation is replaced into the first and second heat dissipation airflows in the first chamber 110. The air in the second chamber 120 exchanges heat with the heat exchanger 500, the heat carried by the air in the second chamber 120 is replaced into the refrigerant in the heat exchanger 500, and the refrigerant flows out of the box body 100, so that the heat generated by the electronic component 400 during operation is replaced outside the box body 100. The heat exchanger in the present application may be a microchannel heat exchanger. The microchannel heat exchanger includes at least two sets of microchannels. The at least two groups of micro-channels comprise a plurality of first micro-channels for a first refrigerant flow to flow and a plurality of second micro-channels for a second refrigerant flow to flow, the second refrigerant flow absorbs heat from the first refrigerant flow so that the first refrigerant flow is supercooled, or the first refrigerant flow absorbs heat from the second refrigerant flow so that the second refrigerant flow is supercooled.

The micro-channel heat exchanger of the embodiment of the application can also be used as an economizer of an air conditioner. Therefore, the micro-channel heat exchanger can be used for cooling electronic elements in the electric control box and also can be used as an economizer, so that the situation that an economizer is arranged outside the electric control box can be avoided, the structure of the air conditioner is simplified, the space is saved, and the cost can be saved.

The structure of the cartridge 100 will be described in detail with reference to the accompanying drawings.

In the embodiment shown in fig. 8, the box body 100 includes a box body 130 and a box cover 140, the box body 130 includes a bottom plate 131 and a side plate 132 disposed on an edge of the bottom plate 131, the bottom plate 131 and the side plate 132 enclose a chamber having an opening, and the box cover 140 is disposed on the box body 130 to close the opening of the chamber. The bottom plate 131 may be a rectangular plate as shown in fig. 8, the side plate 132 may be a rectangular ring, the box cover 140 may be a rectangular plate as shown in fig. 8, and the box body 130 and the box cover 140 enclose a rectangular box body.

The structure of the mounting plate 200 will be described in detail with reference to the accompanying drawings.

The mounting plate 200 may have a rectangular shape as shown in fig. 7, and the mounting plate 200 may be disposed in the case 100 by a screw method, a snap method, a welding method, or the like. For example, the edge of mounting panel 200 can set up the board of bending, set up the mounting hole on the board of bending, be provided with the fixed plate on the box body 100, the fixed plate can be the L template, the one end and the box body 100 welding of fixed plate, the other end of fixed plate is provided with the mating holes, the mounting hole on the board of bending and the mating holes on the fixed plate correspond the setting, utilize bolt and screw installed in mounting hole and mating holes, can realize fixing mounting panel 200 in box body 100.

In the embodiment shown in fig. 7, the mounting plate 200 is provided with a plurality of second air returns 220, the plurality of second air returns 220 are distributed and spaced along a first side of the mounting plate 200, the first air returns 210 are provided on a second side of the mounting plate 200, and the first side and the second side are opposite to each other. For example, in the embodiment shown in fig. 7, the first side is the upper side of the mounting plate, the second side is the lower side of the mounting plate, the first return air opening 210 is provided at one end of the first side, and the second return air opening is provided at the entire edge of the second side. By such a design, the contact area between the air entering the second chamber 120 from the first chamber 110 and the heat exchanger 500 can be increased, and the efficiency of heat exchange between the air in the second chamber 120 and the heat exchanger 500 can be increased.

In some embodiments, the mounting plate 200 is a rectangular plate, the first air return opening 210 is located at a first corner of the rectangular plate, the second air return opening 220 is located at a second corner of the rectangular plate, and the second corner and the first corner are located at two ends of the same diagonal line of the rectangular plate, so that the air in the first chamber 110 can enter the second chamber 120 through the second air return opening 220, and the air in the second chamber 220 enters the first chamber 110 through the first air return opening 210.

The first fan 300 will be described in detail with reference to the accompanying drawings.

The first fan 300 on the mounting plate 200 may be one of a centrifugal fan, an axial flow fan, and a cross flow fan, and in the embodiment shown in fig. 1, the first fan 300 may be an axial flow fan. It will be appreciated by those skilled in the art that the first fan 300 is modified to be a centrifugal fan or a cross flow fan in a conventional replacement.

Referring to fig. 4 and 7, the housing of the first fan 300 is fixed on the mounting plate 200 by a screw manner, the inlet of the first fan 300 is communicated with the first air return opening 210 of the mounting plate 200, and the outlet of the first fan 300 is opposite to the head end of the first heat dissipation path. The first fan 300 draws the air in the second chamber 120 into the first chamber 110, and forms a first heat dissipation airflow in the first chamber 110.

The reactance box also includes a second fan 800, the second fan 800 being described in detail below with reference to the figures.

Referring to fig. 4 and 6, the second fan 800 is disposed on the mounting plate 200, the second fan 800 is disposed in the first chamber 110, and the second fan 800 is disposed on the first heat dissipation path or the second heat dissipation path. The second fan 800 may be one of a centrifugal fan, an axial flow fan, and a cross flow fan.

In some embodiments, the second fan 800 is disposed at the head end of a second heat dissipation path, the first heat dissipation path being, for example, along the upper long side of the cassette 100 shown in FIG. 1, the second heat dissipation path being, for example, along the right short side of the cassette 100 shown in FIG. 1, and the head end of the second heat dissipation path being, for example, at the upper right corner of the cassette 100 shown in FIG. 1. In this case, the second fan 800 may be, for example, a cross-flow fan.

In other embodiments, the second fan 800 is disposed at the tail end of the second heat dissipation path, the air outlet directions of the first fan 300 and the second fan 800 do not intersect, the second fan 800 is used for forming a third heat dissipation airflow flowing along the third heat dissipation path, and the second fan is, for example, a centrifugal fan. The third heat dissipation path is, for example, along the lower long side of the case 100 shown in fig. 2. In this embodiment, the air-out directions of the first fan 300 and the second fan 800 are not in conflict, the air-out directions of the first fan 300 and the second fan 800 are opposite or relatively inclined, for example, the first fan 300 blows air again, the second fan 800 blows air downwards, for example, the first fan 300 blows air rightwards, the second fan 800 blows air leftwards, and the outlet of the first fan 300 and the outlet of the second fan 800 are staggered.

The second fan 800 can cooperate with the first fan 300 to regulate and control the flow rate and the air volume of the air in the box 100, so that the heat exchange efficiency between the air in the first chamber 120 and the electronic component 400 in the first chamber 120 is increased, the heat generated by the electronic component 400 during operation is taken away in time, and the working stability of the electronic component 400 is increased.

The electronic component 400 will be described below with reference to the drawings.

The plurality of electronic components 400 are divided into a first component group and a second component group, which are arranged in the width direction of the case 100. The first component group is disposed near the upper edge of the case 100 and the second component group is disposed near the lower edge of the case 100.

The number of the electronic components 400 included in the first component group is not particularly limited, and may be one, two, three, or the like. For example, when the number of the first component group is three, the three electronic components 400 in the first component group are arranged at intervals along the first heat dissipation path.

In the embodiment shown in fig. 9, the first component group may include reactors 410 and filters 420, the number of the reactors 410 may be two, the filters 420 and the reactors 410 are arranged at intervals in the flow direction of the first heat dissipation airflow, and the filters 420 are disposed upstream of the reactors 410. In fig. 9, filter 420 and reactor 410 are arranged along the length direction of case 100 shown in fig. 9, and filter 420 is close to the head end of the first heat dissipation path and reactor 410 is close to the tail end of the first heat dissipation path.

The number of the electronic components 400 included in the second component group is not particularly limited, and may be one, two, three, or the like. For example, when the number of the second component group is four, the four electronic components 400 in the second component group are arranged at intervals along the second heat dissipation path.

In the embodiment shown in fig. 9, the electronic control box further includes an expansion board 600 and module boards 700, the number of the module boards 700 may be two, the expansion board 600 and the module boards 700 are located in the box body 100, and the expansion board 600 and the module boards 700 are located in the first chamber 110. The second component group includes an extension board 600 and a module board 700, and the extension board 600 and the module board 700 are circuit boards. The expansion board 600 and the module board 700 are arranged at intervals along the second heat dissipation path, the arrangement direction of the expansion board 600 and the module board 700 is parallel to the length direction of the cassette body 100 shown in fig. 9, the expansion board 600 is disposed opposite to the filter 420, and the module board 700 is disposed opposite to the reactor 410. As shown in fig. 5 and 6, in the width direction of the case 100, the filter 420 protrudes toward the extension board 600 with respect to the reactor 410.

The heat exchanger 500 will be described with reference to the drawings.

Referring to fig. 8, a part of the heat exchanger 500 is located inside the box body 100, and a part of the heat exchanger 500 located outside the box body 100 is communicated with a condenser outside the electronic control box. A refrigerant flowing in the heat exchanger 500 circulates through the heat exchanger 500 and the condenser. The heat exchanger 500 may be disposed inside the second chamber 120, the heat exchanger 500 may exchange heat with air flowing from the first chamber 110 to the second chamber 120, the air flowing from the first chamber 110 to the second chamber 120 is air after exchanging heat with the electronic component 400 in the first chamber 110, after the heat exchanger 500 exchanges heat with the air flowing from the first chamber 110 to the second chamber 120, heat carried by the air flowing from the first chamber 110 to the second chamber 120 is replaced into a refrigerant in the heat exchanger 500, the refrigerant flows into a condenser, the condenser is located outside the box 100, and the condenser exchanges heat with the air outside the box 100, so that heat generated when the electronic component 400 operates is replaced outside the box 100.

Referring to fig. 8, the heat exchanger 500 generally includes a refrigerant heat exchanging portion 510, wherein an inlet and an outlet are disposed on the refrigerant heat exchanging portion 510, the refrigerant enters the refrigerant heat exchanging portion 510 through the inlet, and the refrigerant flows from the inside of the refrigerant heat exchanging portion 510 to the outside of the refrigerant heat exchanging portion 510 through the outlet.

The refrigerant heat exchanging portion 510 is disposed in the second chamber 120, the refrigerant circulates inside the refrigerant heat exchanging portion 510, the air flowing from the first chamber 110 into the second chamber 120 contacts the refrigerant heat exchanging portion 510, the refrigerant heat exchanging portion 510 exchanges heat with the air inside the second chamber 120, the heat carried by the air inside the second chamber 120 is replaced by the refrigerant inside the refrigerant heat exchanging portion 510, the refrigerant carrying heat flows through the condenser outside the box 100, and the heat carried by the refrigerant inside the condenser is replaced by the air outside the box 100, so that the heat generated when the electronic component 400 operates is replaced by the air outside the box 100, and the electronic component 400 can reliably operate.

Referring to fig. 8, the heat exchanger 500 further includes a refrigerant inlet pipe 520 and a refrigerant outlet pipe 530. A first end of the refrigerant inlet pipe 520 is communicated with an inlet port of the refrigerant heat exchanging part 510, a second end of the refrigerant inlet pipe 520 is positioned outside the case 100, and a second end of the refrigerant inlet pipe 520 is communicated with the condenser; a first end of the refrigerant output pipe 530 is communicated with an output port of the refrigerant heat exchanging part 510, a second end of the refrigerant output pipe 530 is located outside the box body 100, and the refrigerant output pipe 530 is communicated with a condenser, so that the heat exchanger 500 is communicated with the condenser outside the box body 100.

The electric control box of the embodiment of the invention can be arranged on an air conditioner, for example, an air conditioner outdoor unit of a central air conditioner. The condenser connected to the second end of the refrigerant output tube 530 and the second end of the refrigerant inlet tube 520 may be a condenser of a central air conditioner, so that heat exchange between the refrigerant and air inside the electronic control box can be realized by using the refrigerant in the working process of the central air conditioner, and the refrigerant can replace heat generated by the electronic component 400 during working to the outside of the electronic control box.

In the embodiment of the heat exchanger 500, for example, as shown in fig. 5 and 8, the box body 100 is provided with a first through hole 133 and a second through hole 134, the first through hole 133 is penetrated by a refrigerant inlet pipe 520, the second through hole 134 is penetrated by a refrigerant outlet pipe 530, a first end of the refrigerant inlet pipe 520 is located inside the electrical control box, a second end of the refrigerant inlet pipe 520 is located outside the electrical control box, a first end of the refrigerant outlet pipe 530 is located inside the electrical control box, and a second end of the refrigerant outlet pipe 530 is located outside the electrical control box.

In the embodiment of the heat exchanger 500, a first sealing ring is disposed between the refrigerant inlet pipe 520 and the box 100, and the first sealing ring is used for sealing between the refrigerant inlet pipe 520 and the hole wall of the first through hole 133. A second sealing ring is arranged between the refrigerant output pipe 530 and the box body 100, and the second sealing ring is used for sealing the air inlet between the refrigerant output pipe 530 and the hole wall of the second through hole 134. Therefore, liquid such as rainwater outside the electronic control box can be prevented from entering the electronic control box through the first through hole 133 and the second through hole 134, and the use safety of the electronic component 400 is high.

The outdoor unit of an air conditioner according to an embodiment of the present invention includes the electrical control box and the casing 900, and the electrical control box is located inside the casing 900 as shown in fig. 10.

The air conditioner outdoor unit provided by the embodiment of the invention can be an outdoor unit of a central air conditioner. The electric control box is arranged inside the shell of the central air-conditioning outdoor unit. The condenser communicating with the heat exchanger 500 in the electric control box may be a heat exchanger in an outdoor unit of a central air conditioner.

Two compressors and an outdoor fan are arranged in an outdoor unit of the central air conditioner, and each module board in the electric control box is used for being connected with one corresponding compressor and controlling the corresponding compressor. Each module board in the electric control box is also used for being connected with a corresponding outdoor fan and controlling the corresponding outdoor fan.

Because the technical scheme of the electric control box is adopted by the air conditioner outdoor unit in the embodiment of the invention, the air conditioner outdoor unit at least has all the beneficial effects brought by the technical scheme of the electric control box, and the details are not repeated.

The air conditioner provided by the embodiment of the invention comprises the air conditioner outdoor unit provided by the embodiment of the invention.

The air conditioner of the embodiment of the invention can be a central air conditioner, and the central air conditioner comprises an outdoor unit of the central air conditioner and an indoor unit of the central air conditioner. The outdoor unit of the central air conditioner is arranged outdoors, the indoor unit of the central air conditioner is arranged indoors, and the indoor unit of the central air conditioner and the outdoor unit of the central air conditioner work together to realize the functions of air conditioner refrigeration, heating, dehumidification and the like. In the central air conditioner, the number of outdoor units of the central air conditioner is one, and the number of indoor units of the central air conditioner is two or more.

An indoor heat exchanger is generally disposed in an indoor unit of the central air conditioner, an outdoor heat exchanger is generally disposed in an outdoor unit of the central air conditioner, and the indoor heat exchanger and the outdoor heat exchanger are generally communicated through a refrigerant pipeline, so that a refrigerant can circulate between the indoor heat exchanger and the outdoor heat exchanger. In the refrigeration process of the central air conditioner, the indoor heat exchanger is an evaporator, and a refrigerant in the evaporator absorbs heat from liquid and changes into a gaseous state; in the process of evaporating and absorbing heat of the refrigerant, the evaporator exchanges heat with air flowing through the evaporator to take away heat in the air in the indoor unit of the central air conditioner, so that the air discharged out of the indoor unit of the central air conditioner is the air after heat release and temperature reduction, and the indoor unit of the central air conditioner blows cold air; meanwhile, the outdoor heat exchanger is a condenser, and a refrigerant in the condenser is changed into a liquid state from a gaseous state; in the process of refrigerant condensation and heat release, the condenser exchanges heat with air in the outdoor unit of the central air conditioner flowing through the condenser, so that the air in the outdoor unit of the central air conditioner brings the heat of the condenser to the outside of the outdoor unit of the central air conditioner, and thus, the refrigeration process is realized.

In the heating process of the central air conditioner, the outdoor heat exchanger is an evaporator, and a refrigerant in the evaporator absorbs heat from a liquid state and changes into a gas state; in the process of evaporating and absorbing heat of the refrigerant, the evaporator exchanges heat with air flowing through the evaporator, and heat carried in the air in the outdoor unit of the central air conditioner is replaced into the refrigerant in the evaporator; meanwhile, the indoor heat exchanger is a condenser, and a refrigerant in the condenser is changed into a liquid state from a gaseous state; in the process of condensing and releasing heat of the refrigerant, the condenser exchanges heat with air in the indoor unit of the central air conditioner flowing through the condenser, so that the air in the indoor unit of the central air conditioner takes away heat carried by the condenser and is discharged to the indoor part outside the indoor unit of the central air conditioner from the indoor unit of the central air conditioner, the indoor unit of the central air conditioner blows hot air, and therefore the heating process is achieved.

The electric control box is installed in the outdoor unit of the central air conditioner. The electrical control box can be used for controlling the operation of a compressor in an outdoor unit of a central air conditioner, and the heat exchanger 500 in the electrical control box can be communicated with an outdoor heat exchanger.

Because the air conditioner of the embodiment of the invention adopts the technical scheme of the electric control box, the air conditioner at least has all the beneficial effects brought by the technical scheme of the electric control box, and the details are not repeated.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (14)

1. An electric control box is characterized by comprising a box body and an installation plate arranged in the box body, wherein a first fan and a plurality of electronic components are arranged on the installation side of the installation plate, the first fan is used for forming first heat dissipation airflow flowing along a first heat dissipation path, and the first heat dissipation airflow is turned by the inner wall of the box body to form second heat dissipation airflow flowing along a second heat dissipation path; the plurality of electronic components are distributed on the first heat dissipation path and the second heat dissipation path, and the first heat dissipation path and the second heat dissipation path are located on the installation side of the installation plate.

2. The electrical control box according to claim 1, wherein the first heat dissipation path and the second heat dissipation path are sequentially connected end to form a circulating heat dissipation path.

3. The electrical control box according to claim 1, wherein the mounting plate divides a space within the box body into a first chamber and a second chamber, the plurality of electronic components being disposed within the first chamber;

and a heat exchanger is arranged in the second chamber.

4. The electrical control box according to claim 3, wherein a first air return opening and a second air return opening are disposed on the mounting plate, the first air return opening is located at a head end of the first heat dissipation path, and the second air return opening is located at a tail end of the second heat dissipation path.

5. The electrical control box according to claim 4, wherein an inlet of the first fan is in communication with the first return air opening, and an outlet of the first fan is opposite the head end of the first heat dissipation path.

6. The electrical control box according to claim 4, wherein the mounting plate is a rectangular plate, the first air return opening is located at a first corner of the rectangular plate, the second air return opening is located at a second corner of the rectangular plate, and the second corner and the first corner are located at two ends of a same diagonal of the rectangular plate.

7. The electrical control box according to claim 4, wherein the number of the second air return openings is multiple, and the multiple second air return openings are distributed at intervals along the first edge of the mounting plate;

the first air return opening is formed in the second edge of the mounting plate, and the first edge and the second edge are arranged oppositely.

8. The electrical control box according to any one of claims 1 to 7, further comprising a second fan disposed on the first heat dissipation path or the second heat dissipation path.

9. The electrical control box according to claim 8, wherein the second fan is disposed at a head end of the second heat dissipation path.

10. The electrical control box according to claim 8, wherein the second fan is disposed at a rear end of the second heat dissipation path;

the air outlet directions of the first fan and the second fan are not intersected, and the second fan is used for forming third heat dissipation airflow flowing along a third heat dissipation path.

11. An electrical control box according to any one of claims 1 to 7, wherein the plurality of electronic components provided on the mounting side of the mounting plate include a filter and a reactor, and the filter and the reactor are distributed on the first heat dissipation path.

12. An electrical control box according to any one of claims 1 to 7, wherein the box is a sealed box.

13. An outdoor unit of an air conditioner, comprising the electric control box according to any one of claims 1 to 12.

14. An air conditioner comprising the outdoor unit of claim 13.

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